diff --git a/test/diagrams/graph_easy/diagrams_10.png b/test/diagrams/graph_easy/diagrams_10.png
new file mode 100644
index 0000000000000000000000000000000000000000..5bc070b355367b40725208909b752e858cd47810
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_10.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:21d2a1172fada12bb39f86fd80101bb0608f5fca018c62f28904561acb27ea18
+size 71732
diff --git a/test/diagrams/graph_easy/diagrams_101.png b/test/diagrams/graph_easy/diagrams_101.png
new file mode 100644
index 0000000000000000000000000000000000000000..653ae3e52de3efd09749a4a9fa4b917a3d11c22c
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_101.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2a685467a93c6b22a0270ecef11896f2beb562cd0f9cf48cc1a9a90f9b66fea7
+size 127505
diff --git a/test/diagrams/graph_easy/diagrams_103.png b/test/diagrams/graph_easy/diagrams_103.png
new file mode 100644
index 0000000000000000000000000000000000000000..5bf50f21f9105ef15ab0aba1e0df3bd25b7370bc
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_103.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2754ee5c9e879468f7394ffec232f281e150167f4ab7c90ace7297f502affe4e
+size 92550
diff --git a/test/diagrams/graph_easy/diagrams_106.png b/test/diagrams/graph_easy/diagrams_106.png
new file mode 100644
index 0000000000000000000000000000000000000000..9a8bb68f753aab6bea84b7f41ea78677792b5abe
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_106.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5269fa7b99a82810ba83aa9e4a3a6d30440ea28341891290a9ed7bf54bb5a5a8
+size 91458
diff --git a/test/diagrams/graph_easy/diagrams_107.png b/test/diagrams/graph_easy/diagrams_107.png
new file mode 100644
index 0000000000000000000000000000000000000000..ade5e8d832e662911865fa298689fa096a1ca924
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_107.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:172d404275e1f83c7c62c1757b8aa96ca90a10866c357586c4ada5f14dbe039a
+size 88274
diff --git a/test/diagrams/graph_easy/diagrams_109.png b/test/diagrams/graph_easy/diagrams_109.png
new file mode 100644
index 0000000000000000000000000000000000000000..348aba4997c2697846131063a31a66859bf8fdd4
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_109.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bcc236a8e9fe0471e0404066e4f8cd0f9ece3aca61316b0d861d0936e99ed7e4
+size 81097
diff --git a/test/diagrams/graph_easy/diagrams_11.png b/test/diagrams/graph_easy/diagrams_11.png
new file mode 100644
index 0000000000000000000000000000000000000000..113fd69f21dd02a0de148080963e96251d412c0b
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_11.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8dd1cbbb895f0dab9ddeade3732af9e4e7fbcb09d96dbf1385e6b7492ccb36d1
+size 87193
diff --git a/test/diagrams/graph_easy/diagrams_115.png b/test/diagrams/graph_easy/diagrams_115.png
new file mode 100644
index 0000000000000000000000000000000000000000..ddd27f2ea39babaa8e1e34bda66f061033f7a63d
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_115.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3aa7798fa932ff3a1a7b451e77b10829d56dda506a55dcfe98ae9f6211933241
+size 127543
diff --git a/test/diagrams/graph_easy/diagrams_119.png b/test/diagrams/graph_easy/diagrams_119.png
new file mode 100644
index 0000000000000000000000000000000000000000..387f7bbdf77aa22521910f2b416d01aaa821067d
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_119.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fa154ec797b09c11e224659cf8657c42e4c77cc781b0a9d9f579e53f8cdebdc7
+size 81297
diff --git a/test/diagrams/graph_easy/diagrams_12.png b/test/diagrams/graph_easy/diagrams_12.png
new file mode 100644
index 0000000000000000000000000000000000000000..fee79545d621cce8644f2516d85bf01108a65f3a
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_12.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1efbf6218c3157e33690a657ffe45cb185f14d1be9ce433dd9e396ec08d91632
+size 65157
diff --git a/test/diagrams/graph_easy/diagrams_122.png b/test/diagrams/graph_easy/diagrams_122.png
new file mode 100644
index 0000000000000000000000000000000000000000..4c411f769abd02bd2418c74c321ed4bfae862f63
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_122.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:db2bf7119d5b963a9988ae3feafe325220b10d2d697619c53fd6285beeeca839
+size 89010
diff --git a/test/diagrams/graph_easy/diagrams_124.png b/test/diagrams/graph_easy/diagrams_124.png
new file mode 100644
index 0000000000000000000000000000000000000000..b5452f27c6f8c0512e074e52591a47a1e2c1fda8
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_124.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:70552889c85d0c0284e97e8d898f342c187a0afb1c634910223c108ad1b0f6ad
+size 92770
diff --git a/test/diagrams/graph_easy/diagrams_125.png b/test/diagrams/graph_easy/diagrams_125.png
new file mode 100644
index 0000000000000000000000000000000000000000..4c6037af0120f069f6c6d0d6829a4c0154eba4b1
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_125.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d3cf2d919d9c9c491d215f87a813e3ff0ab370f872de11e8b421e805932f0694
+size 103342
diff --git a/test/diagrams/graph_easy/diagrams_126.png b/test/diagrams/graph_easy/diagrams_126.png
new file mode 100644
index 0000000000000000000000000000000000000000..c9c2fe89a3f4e84d787780cc25660c0b63154987
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_126.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b4d4325041db1bb0bc0fe4140c9a30c958755cae84825afc43d6de7030103e07
+size 101449
diff --git a/test/diagrams/graph_easy/diagrams_128.png b/test/diagrams/graph_easy/diagrams_128.png
new file mode 100644
index 0000000000000000000000000000000000000000..25abc3a9f7c77123d2f9bedc888e7ded645b165c
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_128.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:11da8bd064f06a9cc9c4debc7f4be8906c32e0756e411bfc473680a07494bbdf
+size 64752
diff --git a/test/diagrams/graph_easy/diagrams_131.png b/test/diagrams/graph_easy/diagrams_131.png
new file mode 100644
index 0000000000000000000000000000000000000000..04cfd2ff5c06eb553901d3e7f905e01ab1917e5a
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_131.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4925c250841816e33e8de12e6a8fd7f49551f301020693ab1263a6d5138505d6
+size 132487
diff --git a/test/diagrams/graph_easy/diagrams_139.png b/test/diagrams/graph_easy/diagrams_139.png
new file mode 100644
index 0000000000000000000000000000000000000000..3b4ba6648530a6351ee4041793dd4fccec828874
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_139.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f6ece206f42f192e2cf5b0870616c2cb54309b75c362d9e2ce2a9dcc7c4d2447
+size 84502
diff --git a/test/diagrams/graph_easy/diagrams_14.png b/test/diagrams/graph_easy/diagrams_14.png
new file mode 100644
index 0000000000000000000000000000000000000000..1f68798cb2440d248f9b0644f18897eb9ba5002c
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_14.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:959dbeb7fc5e5217f03f56ec593ce17e07404090b3d40f0c858fb92d49f78263
+size 81504
diff --git a/test/diagrams/graph_easy/diagrams_141.png b/test/diagrams/graph_easy/diagrams_141.png
new file mode 100644
index 0000000000000000000000000000000000000000..0ef9568362160084dfed689fbf01bda2eedf6ff9
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_141.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6bf18d777dcd21b0b509508e1bf533ea9a4c8f1b4e2d57c40a99c638375671db
+size 79956
diff --git a/test/diagrams/graph_easy/diagrams_142.png b/test/diagrams/graph_easy/diagrams_142.png
new file mode 100644
index 0000000000000000000000000000000000000000..94d34c8a453c50f7e94c24dcb3ea01c76f15b565
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_142.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:42891711a8b66792f4ccc211217c03687289f3528ca996b7c94fc9e7afa811ec
+size 86536
diff --git a/test/diagrams/graph_easy/diagrams_144.png b/test/diagrams/graph_easy/diagrams_144.png
new file mode 100644
index 0000000000000000000000000000000000000000..9d14759713f0f16d7bbbe8b27149fbcdab7beeeb
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_144.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cc64ba5893274f54bc46f0d4fcc285d3cd325285c01bfbedfed01fa7835ee16a
+size 52968
diff --git a/test/diagrams/graph_easy/diagrams_145.png b/test/diagrams/graph_easy/diagrams_145.png
new file mode 100644
index 0000000000000000000000000000000000000000..6a2d59d4e5fa561ea714b7813a582d43cca11773
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_145.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:02625a88384161037b1f1cdddc56c22dd098588ece9b2b02426d98d93e5c7bb1
+size 104068
diff --git a/test/diagrams/graph_easy/diagrams_148.png b/test/diagrams/graph_easy/diagrams_148.png
new file mode 100644
index 0000000000000000000000000000000000000000..b80f79321f0e143cda1d9a89d806403be0eb8403
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_148.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:606581e004ede5ac9e6bf2924874a06f1f156c9b37528c1e24df8050f013b9f5
+size 96150
diff --git a/test/diagrams/graph_easy/diagrams_151.png b/test/diagrams/graph_easy/diagrams_151.png
new file mode 100644
index 0000000000000000000000000000000000000000..7141eb44f4044db8c1ef89f9527279761bd8c5ee
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_151.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cdff987171a2017e694a9697bf33b361f766055ecf3e27bcfee2672dbef6c7eb
+size 78763
diff --git a/test/diagrams/graph_easy/diagrams_152.png b/test/diagrams/graph_easy/diagrams_152.png
new file mode 100644
index 0000000000000000000000000000000000000000..06387d889f3db2f0cf796dbcc7b8971c533f6b9a
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_152.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8b940c9fda1a11d86ed731d978c1fbfb9c2c1894a69b43b71479035e2e85e63f
+size 103475
diff --git a/test/diagrams/graph_easy/diagrams_154.png b/test/diagrams/graph_easy/diagrams_154.png
new file mode 100644
index 0000000000000000000000000000000000000000..53471f9b5a0721a452b16003602c19a3e413f4f5
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_154.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e992bbce3dd3480d7de3acc17f88675d20caccb017f0b0bb5346fd2e3727c86b
+size 154377
diff --git a/test/diagrams/graph_easy/diagrams_155.png b/test/diagrams/graph_easy/diagrams_155.png
new file mode 100644
index 0000000000000000000000000000000000000000..1958a5da8c6a2cc11572ff1dad7c82e80e3b9b71
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_155.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d29a36b2478ee9cf70f7f0a97d9485d76a2d3aa417e59a3aee7ce8f60f675d87
+size 79922
diff --git a/test/diagrams/graph_easy/diagrams_156.png b/test/diagrams/graph_easy/diagrams_156.png
new file mode 100644
index 0000000000000000000000000000000000000000..98a96941435373e13af4780f0161c2f3d0c90a7d
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_156.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b5cd6d0bde00959c1d30da90362c1a4a2f3f9f43ee4f6ab084203d3fbabc85c5
+size 59904
diff --git a/test/diagrams/graph_easy/diagrams_158.png b/test/diagrams/graph_easy/diagrams_158.png
new file mode 100644
index 0000000000000000000000000000000000000000..a4d7d375ee407ecbb7d096c71313f8195a92c4ad
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_158.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1238cd840b2544faad0a8f92df454ba10ef1ea0cc8ca45ab2ed9994e582fba78
+size 80349
diff --git a/test/diagrams/graph_easy/diagrams_162.png b/test/diagrams/graph_easy/diagrams_162.png
new file mode 100644
index 0000000000000000000000000000000000000000..69a3420572128fca0edb32ceb2c887cd0e84a0db
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_162.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4b2151c350374062f536f0d2f281f3f1e5e06a68e4e037139f611a07af5a9e39
+size 125801
diff --git a/test/diagrams/graph_easy/diagrams_168.png b/test/diagrams/graph_easy/diagrams_168.png
new file mode 100644
index 0000000000000000000000000000000000000000..514f464ba5874ec86db4a06fc30e840c7b8df7ad
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_168.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d5cc59bf89f095b77375a915b212e657ab3485ffaaade4e070a3ad8bed5121f5
+size 64917
diff --git a/test/diagrams/graph_easy/diagrams_178.png b/test/diagrams/graph_easy/diagrams_178.png
new file mode 100644
index 0000000000000000000000000000000000000000..9a7c756bf825404c278748127d149a46c835af36
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_178.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5576390d652b0692f2f6b6bd5f35d99d12b3667c6c157d0b8fd598351881611c
+size 115267
diff --git a/test/diagrams/graph_easy/diagrams_181.png b/test/diagrams/graph_easy/diagrams_181.png
new file mode 100644
index 0000000000000000000000000000000000000000..76613fc3d02a21852170d6da73e1d22f5fa9deff
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_181.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f0631eea63fc7054ca5f30129d760e571b1b516d916b88a7c1e749c39b2791a0
+size 82366
diff --git a/test/diagrams/graph_easy/diagrams_184.png b/test/diagrams/graph_easy/diagrams_184.png
new file mode 100644
index 0000000000000000000000000000000000000000..bfcc92f53014e60bf30b8a499e0535f29352cc8e
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_184.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3b941b18867aeb207b1deaffffb03a8ba652bc0303bf1ad786d783ceaeddbe48
+size 71395
diff --git a/test/diagrams/graph_easy/diagrams_191.png b/test/diagrams/graph_easy/diagrams_191.png
new file mode 100644
index 0000000000000000000000000000000000000000..1f17089139f0f38ccd6f4391a8d7db0ba601626e
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_191.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:22c202ea7ed2c3dff5e89dba3122af040fb83cb7661780f75dde049a56afa60e
+size 112478
diff --git a/test/diagrams/graph_easy/diagrams_192.png b/test/diagrams/graph_easy/diagrams_192.png
new file mode 100644
index 0000000000000000000000000000000000000000..484060447189032b926c9e304751d0f294057732
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_192.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4ada93a87545de961a7c100122e793842b0e60ffd515b2dd642204b8c2871a5c
+size 83467
diff --git a/test/diagrams/graph_easy/diagrams_193.png b/test/diagrams/graph_easy/diagrams_193.png
new file mode 100644
index 0000000000000000000000000000000000000000..d804f4f99445b3581dbfe8b3e0b13473f651ef07
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_193.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:86c376624e6d81594b4f955e2ebbfe7e683465c26f46146ab719f3b373919aac
+size 122722
diff --git a/test/diagrams/graph_easy/diagrams_194.png b/test/diagrams/graph_easy/diagrams_194.png
new file mode 100644
index 0000000000000000000000000000000000000000..89faed6b4b27cf97d4eb0269177f763515e05190
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_194.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:267f2c80694c54c3fd09edb3b0b410dfe4175d233f626e1cf711942cdf76df6e
+size 153715
diff --git a/test/diagrams/graph_easy/diagrams_2.png b/test/diagrams/graph_easy/diagrams_2.png
new file mode 100644
index 0000000000000000000000000000000000000000..f8a2cc8a11626897ea68dad8bd212f8afcfce246
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_2.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f8d481844238586d28527a158aa06453366e718f9088139dbe88fa33ed134e04
+size 55865
diff --git a/test/diagrams/graph_easy/diagrams_201.png b/test/diagrams/graph_easy/diagrams_201.png
new file mode 100644
index 0000000000000000000000000000000000000000..90a3af1d24015ea60ebf5efdfc4a4761eb409395
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_201.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5250c3bcb2ef99942e3faf55aac7fa34420942484daf4c2c81235a02471420d2
+size 95929
diff --git a/test/diagrams/graph_easy/diagrams_202.png b/test/diagrams/graph_easy/diagrams_202.png
new file mode 100644
index 0000000000000000000000000000000000000000..f8ca46866d1b22c72264dadc3104aab65c812b87
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_202.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7e58e5e41ac1f89e578ba8108cdb1115728482ef7a41336a98ea24bc79e3f014
+size 88692
diff --git a/test/diagrams/graph_easy/diagrams_206.png b/test/diagrams/graph_easy/diagrams_206.png
new file mode 100644
index 0000000000000000000000000000000000000000..9b072628241a611812649e09e605a00fbd2de9a9
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_206.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:46a363e63e88edd01bb6172218529e0a0de5e732b410f16e69c50eca19609e2c
+size 97712
diff --git a/test/diagrams/graph_easy/diagrams_207.png b/test/diagrams/graph_easy/diagrams_207.png
new file mode 100644
index 0000000000000000000000000000000000000000..6b66451618be5dbbc6d1e26b9fbcad88fcc822ec
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_207.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:509e3a8f6912dc118c3bb5f104010cf95fe94c1b1e7d8c867f318ace03ebb3e7
+size 163137
diff --git a/test/diagrams/graph_easy/diagrams_21.png b/test/diagrams/graph_easy/diagrams_21.png
new file mode 100644
index 0000000000000000000000000000000000000000..7f9638a6e208dcf3c23b0d2b3681e0a98eb0d2d8
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_21.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7809136de9679a03091d6c695aa8eb6d66fb13b9d8768b97a7379f590bce58ca
+size 112088
diff --git a/test/diagrams/graph_easy/diagrams_211.png b/test/diagrams/graph_easy/diagrams_211.png
new file mode 100644
index 0000000000000000000000000000000000000000..891c1ed4f4fa9b144f2b2c1ee01f25bad24960ff
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_211.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9beb08f13ef7c0e6fab905d1b41d74abee1532a9d7b19f000906edc8808cf1cb
+size 117257
diff --git a/test/diagrams/graph_easy/diagrams_212.png b/test/diagrams/graph_easy/diagrams_212.png
new file mode 100644
index 0000000000000000000000000000000000000000..3b7b67ded810ae88b7987dda37fc74b6ad285480
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_212.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:004514247117be594cb433d7f0ac2aef39e77c603033fb47276db41c40d7e369
+size 97565
diff --git a/test/diagrams/graph_easy/diagrams_214.png b/test/diagrams/graph_easy/diagrams_214.png
new file mode 100644
index 0000000000000000000000000000000000000000..bfcfc4b2aea2a883a59742dee05bb9013b499557
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_214.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:04088535b122ac6cb6fe78e84ae8e23e076680b14f3fa50b45a47e75774c227c
+size 109730
diff --git a/test/diagrams/graph_easy/diagrams_219.png b/test/diagrams/graph_easy/diagrams_219.png
new file mode 100644
index 0000000000000000000000000000000000000000..017aadda500dfce418520bbd869d42441001ce6a
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_219.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:968b36069a7a79eaf5b4d76160f3bba52856c5cfa4861a13aa4f7afa945417a9
+size 98178
diff --git a/test/diagrams/graph_easy/diagrams_223.png b/test/diagrams/graph_easy/diagrams_223.png
new file mode 100644
index 0000000000000000000000000000000000000000..6efe58f0dc31c671d2213e60d89b15ffc824e0f7
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_223.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a28ed04fc06ca3ebf2f41c858a5307996c4a64e8173e1b76481172d30a3c130d
+size 71692
diff --git a/test/diagrams/graph_easy/diagrams_224.png b/test/diagrams/graph_easy/diagrams_224.png
new file mode 100644
index 0000000000000000000000000000000000000000..b9b1cc10f460bb20e80ef368ecb973017bf525b7
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_224.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:026a74cc7c23c119ef5cd579bd6108ce1a92d84ac66ef56c558bcc38188de020
+size 86624
diff --git a/test/diagrams/graph_easy/diagrams_226.png b/test/diagrams/graph_easy/diagrams_226.png
new file mode 100644
index 0000000000000000000000000000000000000000..f84a2f92cebafee459b3f904c270712738a82588
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_226.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ff9b03b98ec6a386fdf0b20f14b6c2844291c9c0de8ec6155523a9fdb6c91aa3
+size 83701
diff --git a/test/diagrams/graph_easy/diagrams_231.png b/test/diagrams/graph_easy/diagrams_231.png
new file mode 100644
index 0000000000000000000000000000000000000000..fc613dd03fee85145f3b00bb772171872154e520
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_231.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:772a43b2ae938fd57de4b485b212326d42bdc162eb2831b1c0abb706facffd09
+size 102818
diff --git a/test/diagrams/graph_easy/diagrams_234.png b/test/diagrams/graph_easy/diagrams_234.png
new file mode 100644
index 0000000000000000000000000000000000000000..6f96a34ce0c10a87c46cc39fd070142c5189fff7
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_234.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:301ea2d75631419a13e3bd41258c0e711dc921d9e8adbe70dc39c9047ad694c7
+size 105883
diff --git a/test/diagrams/graph_easy/diagrams_237.png b/test/diagrams/graph_easy/diagrams_237.png
new file mode 100644
index 0000000000000000000000000000000000000000..007f295ced6a0d0d3b71e2a737baee28a0bd2113
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_237.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:14e607ecbcdcfc8b09d4da780de0248bb1a24f9623b4d0a76bced248c5b70542
+size 88932
diff --git a/test/diagrams/graph_easy/diagrams_239.png b/test/diagrams/graph_easy/diagrams_239.png
new file mode 100644
index 0000000000000000000000000000000000000000..3bab910cc4082ef5cc7255958beba7dab2b2b78c
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_239.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f7ede4329dfd9fa7d8ce6b3936b049fd410697fdcdc92434a302c5bb09d51e14
+size 82766
diff --git a/test/diagrams/graph_easy/diagrams_244.png b/test/diagrams/graph_easy/diagrams_244.png
new file mode 100644
index 0000000000000000000000000000000000000000..9c2078ff2c8fbe559364f2c9267e36a008cf7eb2
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_244.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e622c84489fb81beb6a367d89563cacdc4a13d2a786d7cf9da656521bf3a78c2
+size 74117
diff --git a/test/diagrams/graph_easy/diagrams_245.png b/test/diagrams/graph_easy/diagrams_245.png
new file mode 100644
index 0000000000000000000000000000000000000000..ed25fdfaca3e1bdf219f061d523ee8eb5ea77330
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_245.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f76d62ad18a084ce6558cc8974f33412b9d6fa26831f1c52a8d9e91054745982
+size 109682
diff --git a/test/diagrams/graph_easy/diagrams_246.png b/test/diagrams/graph_easy/diagrams_246.png
new file mode 100644
index 0000000000000000000000000000000000000000..b8509d33cefc9fb5fe8d44694f08fc3b85295438
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_246.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d1054c7472be4a12b9b958ec5952e8cdb62ec9ebf4a627f828dc2d8bee401bf8
+size 121654
diff --git a/test/diagrams/graph_easy/diagrams_249.png b/test/diagrams/graph_easy/diagrams_249.png
new file mode 100644
index 0000000000000000000000000000000000000000..63734ee2f0b28ac0d444d099976220fd78fa3ac7
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_249.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ba4ea2120cd78ad1040eb2e986ebc8d9494cb558abda62acf1267859b51aeb4d
+size 119628
diff --git a/test/diagrams/graph_easy/diagrams_25.png b/test/diagrams/graph_easy/diagrams_25.png
new file mode 100644
index 0000000000000000000000000000000000000000..1f13bc25ff5676bb6a6647ac26b14dbe12a6aac8
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_25.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3bed4e0c53323360e507b68d2375b50f023cac52e3cec28ac27414972dc4baa3
+size 98376
diff --git a/test/diagrams/graph_easy/diagrams_252.png b/test/diagrams/graph_easy/diagrams_252.png
new file mode 100644
index 0000000000000000000000000000000000000000..35eb0d8bc197b91436ecd3b9f02b57482e4f0808
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_252.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:53bd4ae41203a4cbd61875d7a97d845a851dd615bcc32feb31926f51ff5224af
+size 83311
diff --git a/test/diagrams/graph_easy/diagrams_253.png b/test/diagrams/graph_easy/diagrams_253.png
new file mode 100644
index 0000000000000000000000000000000000000000..b8729cc60362d046cdac83dbdd61c7a4a138f4e5
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_253.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5de0b82c0587773032b6cffda1dbdf06d0423c29467416dbaa470234b8948bc4
+size 77287
diff --git a/test/diagrams/graph_easy/diagrams_254.png b/test/diagrams/graph_easy/diagrams_254.png
new file mode 100644
index 0000000000000000000000000000000000000000..292da40351210f8b5f1b016bb797886898d4eb2e
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_254.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a002638f77372d061e8c54aa458c732e1323935a86ddced869da89ec324b61b6
+size 87389
diff --git a/test/diagrams/graph_easy/diagrams_257.png b/test/diagrams/graph_easy/diagrams_257.png
new file mode 100644
index 0000000000000000000000000000000000000000..b481f93f7d00bc2a02875ed222a64da63c009fa0
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_257.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:284e426cf4db8a9eb7ec33e812a14708604fb8a8b86bb53dbfb462d1ffdd3007
+size 114303
diff --git a/test/diagrams/graph_easy/diagrams_258.png b/test/diagrams/graph_easy/diagrams_258.png
new file mode 100644
index 0000000000000000000000000000000000000000..44ec1b3a6b34d31b397086a10c23e08cbb372ef9
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_258.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:25dbdbe5d1593f746f4e1042711fb366089793e70e704849b1b648aa17cddc34
+size 76671
diff --git a/test/diagrams/graph_easy/diagrams_26.png b/test/diagrams/graph_easy/diagrams_26.png
new file mode 100644
index 0000000000000000000000000000000000000000..c0b05e654ed611024108509b95fe58f02fa9c0e9
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_26.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:37e754a6d61e881f8d1b9bc763b052220d8e334b28311ddbf5d39ea419ebe3e6
+size 98193
diff --git a/test/diagrams/graph_easy/diagrams_260.png b/test/diagrams/graph_easy/diagrams_260.png
new file mode 100644
index 0000000000000000000000000000000000000000..7407f287393151a0abdc0a349f05f698492a70f1
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_260.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b7caa7191bf8922381352d71e1ee1d60d848dbdc75f32aa249f6e7b6ebfb665b
+size 75478
diff --git a/test/diagrams/graph_easy/diagrams_262.png b/test/diagrams/graph_easy/diagrams_262.png
new file mode 100644
index 0000000000000000000000000000000000000000..83c2e978fed3d740015b2bce2f5fa87d6ace2349
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_262.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:28893c5c8ba8e53ee1f9746934c5150de4dc3c85dbfd39e826c47a885d47f9e5
+size 131866
diff --git a/test/diagrams/graph_easy/diagrams_266.png b/test/diagrams/graph_easy/diagrams_266.png
new file mode 100644
index 0000000000000000000000000000000000000000..768c2de45ea0f475d5f0dfe7f1e58a97c25caf69
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_266.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d5234e9273290f524a24cefba35371fb59182841a037960932139deb53a2a981
+size 86925
diff --git a/test/diagrams/graph_easy/diagrams_267.png b/test/diagrams/graph_easy/diagrams_267.png
new file mode 100644
index 0000000000000000000000000000000000000000..d8000ab8119c5ac1681b52e8cd482bba91a7c731
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_267.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1c27822cc4c78c53fcbe3ffee545af20adfc54deab8bad9ad96470352d157b1b
+size 148039
diff --git a/test/diagrams/graph_easy/diagrams_268.png b/test/diagrams/graph_easy/diagrams_268.png
new file mode 100644
index 0000000000000000000000000000000000000000..bd3d752bf437864f28aa998d8e9471bc86ec4cb1
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_268.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:49b62a2d1cf6c284f88cdf9dca24d6369b54e0206ec18ba7ff9d0e11d0031e81
+size 128254
diff --git a/test/diagrams/graph_easy/diagrams_269.png b/test/diagrams/graph_easy/diagrams_269.png
new file mode 100644
index 0000000000000000000000000000000000000000..f907182dba2a5257e07a12b27362a882d3fec6cc
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_269.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f3db8dc218870e5d9a7e43f0b1e8b0ff09ee235ab7396c8bf3aa56399a7602b5
+size 77922
diff --git a/test/diagrams/graph_easy/diagrams_271.png b/test/diagrams/graph_easy/diagrams_271.png
new file mode 100644
index 0000000000000000000000000000000000000000..f515eff33c8e10f4434dc5a1e7b6978e29cae298
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_271.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:65cfce8ea4b849707b3d3a719cba321f55fbf3104bb1ec5e52a7dae54f4b59d3
+size 105644
diff --git a/test/diagrams/graph_easy/diagrams_273.png b/test/diagrams/graph_easy/diagrams_273.png
new file mode 100644
index 0000000000000000000000000000000000000000..9fcac5751a7776861357c2ff4c0abec4d7a11945
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_273.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5b7b0f8f44644159b616ba6bb464d32581f45a7031a4bf76af17d1b1b86815e0
+size 86801
diff --git a/test/diagrams/graph_easy/diagrams_276.png b/test/diagrams/graph_easy/diagrams_276.png
new file mode 100644
index 0000000000000000000000000000000000000000..2eb3e45cbac8ad410db2a6c95b40e4c750c94e1f
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_276.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2d2896a7a0fbb1ee69d3c78f309d84220c627492ed6f04763bacb7f72ef928a9
+size 107960
diff --git a/test/diagrams/graph_easy/diagrams_277.png b/test/diagrams/graph_easy/diagrams_277.png
new file mode 100644
index 0000000000000000000000000000000000000000..8183f3253e0a3000b682bcaa34e8927686356583
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_277.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d190f04cd8fe52587c487d2e01d48c4e036a28bfa8fd5daa25b8e1abb7af8830
+size 91701
diff --git a/test/diagrams/graph_easy/diagrams_280.png b/test/diagrams/graph_easy/diagrams_280.png
new file mode 100644
index 0000000000000000000000000000000000000000..119366e5026a37a99e1c93a39b77443a788057f3
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_280.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a3ccde129a274717751c67e1ea359caccbe80ee97201468e9994346648dcbe20
+size 145533
diff --git a/test/diagrams/graph_easy/diagrams_281.png b/test/diagrams/graph_easy/diagrams_281.png
new file mode 100644
index 0000000000000000000000000000000000000000..c1d5aa3bd4b3548892bec622a2ea4130dfddd051
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_281.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7bc86d72c467d570ebaf2b0739d562a8e276783aeac2670c1c4230a1a70c6652
+size 112730
diff --git a/test/diagrams/graph_easy/diagrams_282.png b/test/diagrams/graph_easy/diagrams_282.png
new file mode 100644
index 0000000000000000000000000000000000000000..1619bba6b3b798818112cefcfed33df5b311eaa8
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_282.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eeaf787f4532aff74894a983dd357debbcbdf303db11f4282a8aa429a144ea52
+size 110729
diff --git a/test/diagrams/graph_easy/diagrams_283.png b/test/diagrams/graph_easy/diagrams_283.png
new file mode 100644
index 0000000000000000000000000000000000000000..193481aab7853cd3a361e3edc0eac5427efd4a84
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_283.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b2819c77d784cfdbf34220c90d2de5e55c0380259fafb2646378c7c2e6fecc98
+size 104113
diff --git a/test/diagrams/graph_easy/diagrams_292.png b/test/diagrams/graph_easy/diagrams_292.png
new file mode 100644
index 0000000000000000000000000000000000000000..7be35c438224442ac1f80fef2bfd55503f703858
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_292.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:51e2424337ccb1429c8283fcc34fb76b06d84e84d78485ee6c10640fced66c1c
+size 111287
diff --git a/test/diagrams/graph_easy/diagrams_293.png b/test/diagrams/graph_easy/diagrams_293.png
new file mode 100644
index 0000000000000000000000000000000000000000..ca69101e0b59b41b232156e0b0f69742ce6d5201
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_293.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2e4bc6d461fa4d52b11e326f9b9b8a35442a59cace1bb9a63609bbe1e1ae917c
+size 125288
diff --git a/test/diagrams/graph_easy/diagrams_297.png b/test/diagrams/graph_easy/diagrams_297.png
new file mode 100644
index 0000000000000000000000000000000000000000..9d51bbdff0b34cad4f508976b9b5ea4a30a382d0
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_297.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:71a062ed20e21c02819d5fa025dcfca18f59a40b84bb02cf2f023e963443e7c4
+size 93909
diff --git a/test/diagrams/graph_easy/diagrams_298.png b/test/diagrams/graph_easy/diagrams_298.png
new file mode 100644
index 0000000000000000000000000000000000000000..d74b8d4c99afd7d77f935bdf7e227bcd705f2f97
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_298.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5b580f75acd2286d67f476e5e1d39827cf9354bf2c1fa745013a97b6e3284697
+size 77437
diff --git a/test/diagrams/graph_easy/diagrams_302.png b/test/diagrams/graph_easy/diagrams_302.png
new file mode 100644
index 0000000000000000000000000000000000000000..0cd89bcbfc0b3b2de3393b5cbe3d0ad5cf19bc71
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_302.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:805b0b699cc1f68da4d7eb0413d47c948147c0df95035fdc60731d091e4c593f
+size 93887
diff --git a/test/diagrams/graph_easy/diagrams_303.png b/test/diagrams/graph_easy/diagrams_303.png
new file mode 100644
index 0000000000000000000000000000000000000000..0e654c7e2aae2d3f678717e07cf351c467763290
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_303.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b53ce3eb2dbbb42d825d11fd12ce4b0477058bf78f9fcf877bca30151d3e4994
+size 82456
diff --git a/test/diagrams/graph_easy/diagrams_305.png b/test/diagrams/graph_easy/diagrams_305.png
new file mode 100644
index 0000000000000000000000000000000000000000..e52ddc933debdb5f4dd7621c84dc2235e18004b5
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_305.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e5deaf0a05660dbfec72a6845e20d5646e9d2b627f58f9aa50a055606a533a59
+size 107016
diff --git a/test/diagrams/graph_easy/diagrams_308.png b/test/diagrams/graph_easy/diagrams_308.png
new file mode 100644
index 0000000000000000000000000000000000000000..aacdee790474053f43d7e99a9e7ce35fe3809bbc
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_308.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2777fed9cc07e88fbfe15f8a4f5fec231d2e69770a66b4ab43be32bdeb9e4616
+size 83163
diff --git a/test/diagrams/graph_easy/diagrams_309.png b/test/diagrams/graph_easy/diagrams_309.png
new file mode 100644
index 0000000000000000000000000000000000000000..52cd81330391a8f254075c50f73da618a5221dfa
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_309.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bd506d5102bca74f46cde6ad3be51814051aa93525dc93e0f98791061ccb1fa7
+size 74064
diff --git a/test/diagrams/graph_easy/diagrams_310.png b/test/diagrams/graph_easy/diagrams_310.png
new file mode 100644
index 0000000000000000000000000000000000000000..3b7a5c35f1b90b51cad610a7fbdd9777a008c128
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_310.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:da0a493368f08b90ae7d4866c821fc3508a9e1dfb203189b2cedbb06bcc83ffc
+size 92562
diff --git a/test/diagrams/graph_easy/diagrams_315.png b/test/diagrams/graph_easy/diagrams_315.png
new file mode 100644
index 0000000000000000000000000000000000000000..a995c27656a1487d993f04c0c4eec2a30dd600f9
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_315.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:47615c4a551c86b821d84027ea44db29d159090c0b27c6dc2abeebde9bccf971
+size 91284
diff --git a/test/diagrams/graph_easy/diagrams_316.png b/test/diagrams/graph_easy/diagrams_316.png
new file mode 100644
index 0000000000000000000000000000000000000000..c1b0e779588495b3d4d2fe7b67d6375cf86caf37
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_316.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:08ce0513df00a7698c36fd0ecad53d992dc228e7c04a78741e11d1077653c14e
+size 88801
diff --git a/test/diagrams/graph_easy/diagrams_317.png b/test/diagrams/graph_easy/diagrams_317.png
new file mode 100644
index 0000000000000000000000000000000000000000..59b051ea1dee52382d3d2652578f6f7e341e908d
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_317.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7898c0ca55f1c3125770ee68778487e0b4cadc87ddcb67ac10100edd69404dcf
+size 120888
diff --git a/test/diagrams/graph_easy/diagrams_318.png b/test/diagrams/graph_easy/diagrams_318.png
new file mode 100644
index 0000000000000000000000000000000000000000..46b2c47a042124f5b9b622ba81bbd8bcfaa50dfd
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_318.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:793377daa4348e4cdd84808e864ef106033df2819e74dcdbfe3837796da67aee
+size 113865
diff --git a/test/diagrams/graph_easy/diagrams_319.png b/test/diagrams/graph_easy/diagrams_319.png
new file mode 100644
index 0000000000000000000000000000000000000000..a6514cac731c6557e6f3c95bd087c4155508441d
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_319.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cee27ef6bf7bf053a253626bb90cad565d3513088a03b1ea8ddefe08c147bbcc
+size 117668
diff --git a/test/diagrams/graph_easy/diagrams_33.png b/test/diagrams/graph_easy/diagrams_33.png
new file mode 100644
index 0000000000000000000000000000000000000000..1514c08fb474969ea5ce9795c2ae04a935d74466
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_33.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d603adb20cf9085e7b0dc1e207d72c22260d890af23cb54f8a806e3353908d4a
+size 83411
diff --git a/test/diagrams/graph_easy/diagrams_338.png b/test/diagrams/graph_easy/diagrams_338.png
new file mode 100644
index 0000000000000000000000000000000000000000..e30a2055e02aa326f2d6ed23dcd08bb15b6c2416
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_338.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:df56734a11a8ceb0af2b9a26d4ab22c0b94e48f41529451562e532b177eea6c8
+size 112019
diff --git a/test/diagrams/graph_easy/diagrams_340.png b/test/diagrams/graph_easy/diagrams_340.png
new file mode 100644
index 0000000000000000000000000000000000000000..f1898c0605d5f112b4343e9ee141ea4508f0c83c
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_340.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:adf2ccfb0187d314e68793eb364b6292637614c7809ff1fe8b1803ba93079319
+size 111191
diff --git a/test/diagrams/graph_easy/diagrams_341.png b/test/diagrams/graph_easy/diagrams_341.png
new file mode 100644
index 0000000000000000000000000000000000000000..b1f6d5b7fd7009751a7f9d55fbb27d9e96cdcd28
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_341.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:880b45f460810feacdd5f6573997992713d298cc5b7cde7431a5c493fa93cdf2
+size 115587
diff --git a/test/diagrams/graph_easy/diagrams_343.png b/test/diagrams/graph_easy/diagrams_343.png
new file mode 100644
index 0000000000000000000000000000000000000000..bf39518f512173570f367ed72e374d475cdcd972
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_343.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:18a45b6fe3664b25501f60fac85983277d58ed490c1b2626da7c2dac2e046646
+size 96438
diff --git a/test/diagrams/graph_easy/diagrams_344.png b/test/diagrams/graph_easy/diagrams_344.png
new file mode 100644
index 0000000000000000000000000000000000000000..cd32e5b97d840e3fa9973b860177cf6e990bd7ab
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_344.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:154dcad6f502018640c35ab33f6cbfe834e4881e5700cb22379bd34b1328e7f2
+size 71539
diff --git a/test/diagrams/graph_easy/diagrams_347.png b/test/diagrams/graph_easy/diagrams_347.png
new file mode 100644
index 0000000000000000000000000000000000000000..ab652c1c785d0182042fa9d255ca4da114eec73b
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_347.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:70ae489ef064d25d1a5b0babb430768a2e6075ed5e3d4cc0ac81aa4de663b288
+size 84885
diff --git a/test/diagrams/graph_easy/diagrams_355.png b/test/diagrams/graph_easy/diagrams_355.png
new file mode 100644
index 0000000000000000000000000000000000000000..d3a311c3137b0b3f6688869e344c5b1bdf38472a
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_355.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:655797fbde2b256a9ca4cdeff00030f21ede6a2b20df827c0350d0daf0c8cad0
+size 115127
diff --git a/test/diagrams/graph_easy/diagrams_357.png b/test/diagrams/graph_easy/diagrams_357.png
new file mode 100644
index 0000000000000000000000000000000000000000..e40db515d4b0bfd5ef744f4ab4b9c8d445a61fd1
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_357.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b19be2ea6cbe052eb69fdf26b4353de049ae820111513f994026af0fcc35eebe
+size 92366
diff --git a/test/diagrams/graph_easy/diagrams_358.png b/test/diagrams/graph_easy/diagrams_358.png
new file mode 100644
index 0000000000000000000000000000000000000000..36004f0e7a68ee548d3939e49c4cbfd32618dcc1
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_358.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5114fa1f615a58d55873114a023d14a26be769016c33bf90724341d37a7e7df7
+size 134361
diff --git a/test/diagrams/graph_easy/diagrams_359.png b/test/diagrams/graph_easy/diagrams_359.png
new file mode 100644
index 0000000000000000000000000000000000000000..cf5aae25d05ed74e94e4f8f404ba20bf56e397ae
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_359.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:37fd854ecb4650a25386028986a658e838c51f04af3213f6b7f56f92aaf69029
+size 88882
diff --git a/test/diagrams/graph_easy/diagrams_360.png b/test/diagrams/graph_easy/diagrams_360.png
new file mode 100644
index 0000000000000000000000000000000000000000..93e1c5e0cf496c92986b54e86380c737cdecab01
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_360.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2d1e20b999acd4abd55c62f989da0f44c2398318d44a4eafed83d8dc436f5556
+size 128429
diff --git a/test/diagrams/graph_easy/diagrams_37.png b/test/diagrams/graph_easy/diagrams_37.png
new file mode 100644
index 0000000000000000000000000000000000000000..e4021e3f8dff7556308e0ff4ade7befc1b6ea07e
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_37.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:385848d4f97ce6e11ad9538d4832e04c694ae476d256ebcf6250c4924785b9a1
+size 71234
diff --git a/test/diagrams/graph_easy/diagrams_38.png b/test/diagrams/graph_easy/diagrams_38.png
new file mode 100644
index 0000000000000000000000000000000000000000..8fe99387926cc757cf60ad6b3e109c8598799981
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_38.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1694fe02c2782a551d533694dece0b2d394418453c9be2b3ff535b28ae533631
+size 75750
diff --git a/test/diagrams/graph_easy/diagrams_42.png b/test/diagrams/graph_easy/diagrams_42.png
new file mode 100644
index 0000000000000000000000000000000000000000..aba8125045d52c02d3164a262d110fa5bdb6eff3
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_42.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:51aab91ec3360002be4a8e45c62c72e09cf4c642261d1b1f4f8c649aba3a3623
+size 93613
diff --git a/test/diagrams/graph_easy/diagrams_45.png b/test/diagrams/graph_easy/diagrams_45.png
new file mode 100644
index 0000000000000000000000000000000000000000..6db0d0fe8d40717a8738a9cb5e582a0fcd91a8c0
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_45.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b7cfede61ff7b79c15ceb54ff2490022e7839aded25a9d0e46412b7096a5029e
+size 91007
diff --git a/test/diagrams/graph_easy/diagrams_47.png b/test/diagrams/graph_easy/diagrams_47.png
new file mode 100644
index 0000000000000000000000000000000000000000..4ef2cbe72097e3d3d44d160304d27cda1145ee85
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_47.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f468fae58e3976381cb63c5f570a1d50536c353dbd22871b59bf864fc11229b2
+size 87598
diff --git a/test/diagrams/graph_easy/diagrams_48.png b/test/diagrams/graph_easy/diagrams_48.png
new file mode 100644
index 0000000000000000000000000000000000000000..dd8f9ea6232fd6bb81a7d2d37f7f2cf129a6e558
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_48.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:69256886466f17fab77f0a96d5b7b215a8c01ab0d3b26d7d150434403dfca7be
+size 93860
diff --git a/test/diagrams/graph_easy/diagrams_52.png b/test/diagrams/graph_easy/diagrams_52.png
new file mode 100644
index 0000000000000000000000000000000000000000..ec2f403a3910240ecee3b5014c33795e81dbe6d2
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_52.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:86f8b0322708e2a683f800ec0c7ca6ef61364f9bb062ba28481acfee506d091d
+size 70747
diff --git a/test/diagrams/graph_easy/diagrams_53.png b/test/diagrams/graph_easy/diagrams_53.png
new file mode 100644
index 0000000000000000000000000000000000000000..cd3ec7862308d570a198b64b9138bde2ffd7ee61
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_53.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7fb6a9c7bd1da26e1d2d03a249acc22efda3ec9fdb6aa401064e0b480ef21db6
+size 117595
diff --git a/test/diagrams/graph_easy/diagrams_55.png b/test/diagrams/graph_easy/diagrams_55.png
new file mode 100644
index 0000000000000000000000000000000000000000..50aefee620825464956058b3ec9eba99703439c2
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_55.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9d82eac3ab6ac8cf8d7a7813f6ad46b7cf39d7c70f230b65f211312b85e654fd
+size 84296
diff --git a/test/diagrams/graph_easy/diagrams_61.png b/test/diagrams/graph_easy/diagrams_61.png
new file mode 100644
index 0000000000000000000000000000000000000000..b210f79e81cb70695cb33e126d3e5f3e58feb58c
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_61.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6b05db3eb91dbc48025649300158ce4e9bdb5216b2f09d0ea7c0d0b9485a0996
+size 75169
diff --git a/test/diagrams/graph_easy/diagrams_62.png b/test/diagrams/graph_easy/diagrams_62.png
new file mode 100644
index 0000000000000000000000000000000000000000..3e84e0bc42117c3e124c8f3d15c4931e7e1dcb3e
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_62.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d960598b7e40b2f7a45acf96cb540b33d282b84f4a2dc8e222ce1ebdc438ffd6
+size 81262
diff --git a/test/diagrams/graph_easy/diagrams_65.png b/test/diagrams/graph_easy/diagrams_65.png
new file mode 100644
index 0000000000000000000000000000000000000000..1377692800aef637eeff2a998c9861e983c1e306
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_65.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:735fde6b00cb033f1c3b6639b1e7defc384dc0774350d760851f29d2e6030ac3
+size 114146
diff --git a/test/diagrams/graph_easy/diagrams_73.png b/test/diagrams/graph_easy/diagrams_73.png
new file mode 100644
index 0000000000000000000000000000000000000000..4ab378082880097e3853d3f80acb6aad218814d6
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_73.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6776b12638abba206049457387ade0c2ab13ed101a6024acac40335d9194aa40
+size 98125
diff --git a/test/diagrams/graph_easy/diagrams_77.png b/test/diagrams/graph_easy/diagrams_77.png
new file mode 100644
index 0000000000000000000000000000000000000000..b2fe7d9e31f464a68c9a5dfbd15b2969ec2ff0fb
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_77.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:187494b465903f97b3cb7d95435180a50c347980f4ade4b3c420a56e273f89b9
+size 122400
diff --git a/test/diagrams/graph_easy/diagrams_80.png b/test/diagrams/graph_easy/diagrams_80.png
new file mode 100644
index 0000000000000000000000000000000000000000..fd1b6b9d7214cb26ec46168afe65d0ba470f8d80
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_80.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d1f382060ac958c4918fd1877b14abaead78d06abbc6a1ef0ed3dadc2167ff91
+size 92502
diff --git a/test/diagrams/graph_easy/diagrams_85.png b/test/diagrams/graph_easy/diagrams_85.png
new file mode 100644
index 0000000000000000000000000000000000000000..8de1f0e4b9e58cc56f01272b4005e2e5ea6478e6
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_85.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0f508d43addd297524f13f6e001cbd00f52030567109357ea562b29a02861ad9
+size 90913
diff --git a/test/diagrams/graph_easy/diagrams_86.png b/test/diagrams/graph_easy/diagrams_86.png
new file mode 100644
index 0000000000000000000000000000000000000000..ef6da7d9675099c5baa71a9b3b304748c28b3c12
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_86.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5d594fa41f1b66bbcde1bebb46146769072e1e63102ed6b448191ba6b4568730
+size 86404
diff --git a/test/diagrams/graph_easy/diagrams_87.png b/test/diagrams/graph_easy/diagrams_87.png
new file mode 100644
index 0000000000000000000000000000000000000000..3730e9b1ebb040a7f169ea62297ba21bf03aee91
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_87.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:22e08e85338093ba94639512fdc96c88e5214d3a349c74d185510a496ceb05dc
+size 90580
diff --git a/test/diagrams/graph_easy/diagrams_89.png b/test/diagrams/graph_easy/diagrams_89.png
new file mode 100644
index 0000000000000000000000000000000000000000..dd6c4bb86f91d10a2819d4d360de5396fa89e379
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_89.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:13df7149ed5fc9b7ad37955f6af85f7982e2a1ecb99945ae3d5b6605c2b6c659
+size 76492
diff --git a/test/diagrams/graph_easy/diagrams_91.png b/test/diagrams/graph_easy/diagrams_91.png
new file mode 100644
index 0000000000000000000000000000000000000000..532f773f2e48ed02a7750f31e95cb226ca758932
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_91.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3983df8dbd08f63e4fb4d7264caba2e560371e2d419f808a0569380c7d38e362
+size 82298
diff --git a/test/diagrams/graph_easy/diagrams_92.png b/test/diagrams/graph_easy/diagrams_92.png
new file mode 100644
index 0000000000000000000000000000000000000000..2098a9d1228e91623f6f92f46b38d90e258ebaa8
--- /dev/null
+++ b/test/diagrams/graph_easy/diagrams_92.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e40b8e302ead6bb0a45fd0594aa0f82791d8961bedf4aa0632ec139861586c52
+size 104592
diff --git a/test/diagrams/graph_medium/diagrams_1.png b/test/diagrams/graph_medium/diagrams_1.png
new file mode 100644
index 0000000000000000000000000000000000000000..f91800a832206d70d821a64c04e7b84f9ead1bbb
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_1.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5b75ad5c0f3ac1e2886d2ad7dd5ae280f0048b8451d29ea9b416c7acf25f94b5
+size 143518
diff --git a/test/diagrams/graph_medium/diagrams_102.png b/test/diagrams/graph_medium/diagrams_102.png
new file mode 100644
index 0000000000000000000000000000000000000000..fd3ba09690fef0f4f26c0573ce24a086a9f5e7e5
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_102.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a9f8642eae261a7b6c005bc65ef4555b05f2a4b8e461cf0bf17420344f551411
+size 183011
diff --git a/test/diagrams/graph_medium/diagrams_104.png b/test/diagrams/graph_medium/diagrams_104.png
new file mode 100644
index 0000000000000000000000000000000000000000..62d5c3e7f5a22ae39c8cc3c9bd0877a939bb955a
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_104.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9e2e1890dc2fc0c5a5e139626b50370c8e980f332411c677da71f9fb02253940
+size 148934
diff --git a/test/diagrams/graph_medium/diagrams_108.png b/test/diagrams/graph_medium/diagrams_108.png
new file mode 100644
index 0000000000000000000000000000000000000000..7b45c27ab8806043fc433ce0ec751b3fb9e6bb00
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_108.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:32f3d2f6c9e96b6057a2245cb3b5052b072d647ba5cdb16db654f32964bd1ba8
+size 128236
diff --git a/test/diagrams/graph_medium/diagrams_111.png b/test/diagrams/graph_medium/diagrams_111.png
new file mode 100644
index 0000000000000000000000000000000000000000..97f6b224dd579b7a9252af0df796b2b52fa44803
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_111.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e0e0e0f2d3891cc31f9a1fdc1d035eda9848fc944ba8f2809d21275a54d3cbc3
+size 219744
diff --git a/test/diagrams/graph_medium/diagrams_114.png b/test/diagrams/graph_medium/diagrams_114.png
new file mode 100644
index 0000000000000000000000000000000000000000..81167e1d59b9d3cd2efc8e4baeacac3610126404
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_114.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1ea8f53b746511c16db040c5d54913291e5206dd57f85da22b79ab7c2fe65901
+size 172943
diff --git a/test/diagrams/graph_medium/diagrams_116.png b/test/diagrams/graph_medium/diagrams_116.png
new file mode 100644
index 0000000000000000000000000000000000000000..69653bf5a17d53215e994a3937e4673f099b5bb0
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_116.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b987967f488b3a000d04d08f1367574f78c50eeb58432d05bfe270e237a4c2b0
+size 200093
diff --git a/test/diagrams/graph_medium/diagrams_117.png b/test/diagrams/graph_medium/diagrams_117.png
new file mode 100644
index 0000000000000000000000000000000000000000..0a2e18bc9ce3f986f109126634c2e735c9f89e57
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_117.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5d81a2de8791cb2405ece1979c95f113041a6f8e7ba3a23965366df742cc492d
+size 240764
diff --git a/test/diagrams/graph_medium/diagrams_118.png b/test/diagrams/graph_medium/diagrams_118.png
new file mode 100644
index 0000000000000000000000000000000000000000..747bdb6c4f008adf0c0e5a7f8000bf8c208161f3
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_118.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0c122d964119a9771dd39c2ef6373470a6d8858a608cb370992c3dcae4641e6c
+size 195209
diff --git a/test/diagrams/graph_medium/diagrams_123.png b/test/diagrams/graph_medium/diagrams_123.png
new file mode 100644
index 0000000000000000000000000000000000000000..355110ff33a4aeb152936b2c68bacbd6427709ae
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_123.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:36e465892f83dacc5cd52bbd7f83e99e3d976c295ce02e42345f4ddf99d5afbc
+size 201351
diff --git a/test/diagrams/graph_medium/diagrams_13.png b/test/diagrams/graph_medium/diagrams_13.png
new file mode 100644
index 0000000000000000000000000000000000000000..117b3a2abaface9120cc034ccaa6c28dae83947b
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_13.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:16d57c0b082eed2e7c1a35230e9e4304bb621d0e0c9a233979ce8381619c95bf
+size 166097
diff --git a/test/diagrams/graph_medium/diagrams_130.png b/test/diagrams/graph_medium/diagrams_130.png
new file mode 100644
index 0000000000000000000000000000000000000000..3d64b7108c52d2431b154f03e11aafb974619cf8
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_130.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0289cbcfcd0ea2ea2153265730e4b94994c466993f406635713cae04207d9c9f
+size 207258
diff --git a/test/diagrams/graph_medium/diagrams_132.png b/test/diagrams/graph_medium/diagrams_132.png
new file mode 100644
index 0000000000000000000000000000000000000000..10643cf2d753a0c522eb799683d8e597ce8f9325
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_132.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e5e31cb15355d67710285de3620bd1edc73a7e4185e8434422dab330b4ded364
+size 144269
diff --git a/test/diagrams/graph_medium/diagrams_133.png b/test/diagrams/graph_medium/diagrams_133.png
new file mode 100644
index 0000000000000000000000000000000000000000..32888f2f9d43a7811f00e4af10450bebef180195
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_133.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:42212a7e609644eb1eae3d5f12e0ccc551cf269dee8475473761a73bc41c60df
+size 157587
diff --git a/test/diagrams/graph_medium/diagrams_134.png b/test/diagrams/graph_medium/diagrams_134.png
new file mode 100644
index 0000000000000000000000000000000000000000..4e48eef54a4be3dc13e7f5080362daab3e3ec719
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_134.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ec7480fd2bdfde0218dc2b04d479dac8b97a40c77f8e0c8cb2c111a8bb52fc1c
+size 199156
diff --git a/test/diagrams/graph_medium/diagrams_137.png b/test/diagrams/graph_medium/diagrams_137.png
new file mode 100644
index 0000000000000000000000000000000000000000..a7598f30572af1bb10ab2c57ffa96f4fe6aa2d3d
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_137.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:696487bdb3b2ff32175d2d94a4a56a4e15f95ee90952186f3770615cf3e722b1
+size 183948
diff --git a/test/diagrams/graph_medium/diagrams_146.png b/test/diagrams/graph_medium/diagrams_146.png
new file mode 100644
index 0000000000000000000000000000000000000000..9754553d74196835c566e63b5da084788b725f1a
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_146.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cd48b5faa7c2c7ed0a16b5b7b1ac02bb8d2a26829c962fe4ac70fe0f798de29b
+size 180398
diff --git a/test/diagrams/graph_medium/diagrams_149.png b/test/diagrams/graph_medium/diagrams_149.png
new file mode 100644
index 0000000000000000000000000000000000000000..8435fa61b002973d44df40329dfd1e6aa6f26068
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_149.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7fba9c88029494f85dcbaff2778f1e62406dbb08d102acbf6ef71ddf28cf28c3
+size 168681
diff --git a/test/diagrams/graph_medium/diagrams_150.png b/test/diagrams/graph_medium/diagrams_150.png
new file mode 100644
index 0000000000000000000000000000000000000000..5703f52742e45328ae20a2cda64b1fca7e3ffe0d
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_150.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c9499b8d5963ce346a6dd5353fae77703ea99244ec5a1ed4d02e88f2a86a7caa
+size 219620
diff --git a/test/diagrams/graph_medium/diagrams_16.png b/test/diagrams/graph_medium/diagrams_16.png
new file mode 100644
index 0000000000000000000000000000000000000000..2ffaeb73ebc6959e0bd700849a798d57014c191a
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_16.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:37142cd51c952671a418eff1e54d3fe30c0f2f8aea3f77ac024bc0256edeab57
+size 144662
diff --git a/test/diagrams/graph_medium/diagrams_160.png b/test/diagrams/graph_medium/diagrams_160.png
new file mode 100644
index 0000000000000000000000000000000000000000..82ec6a99f630d7d2905c65b7d5e1f23064ba1320
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_160.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cacd02b0ad35a621f9051bdc53ba7c78bf81d474c5c7fe14e61f4dd803d704c0
+size 228614
diff --git a/test/diagrams/graph_medium/diagrams_164.png b/test/diagrams/graph_medium/diagrams_164.png
new file mode 100644
index 0000000000000000000000000000000000000000..c6218f215d5bd4bda64b399a8f1d77bac97badf8
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_164.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:159ea3e7d4b4cedc5f5d9b053ef7ec321b5fee001136f65fdca209e9fba765f8
+size 168678
diff --git a/test/diagrams/graph_medium/diagrams_165.png b/test/diagrams/graph_medium/diagrams_165.png
new file mode 100644
index 0000000000000000000000000000000000000000..1b586af4faa1ba82a7f260328f6137d5326ac1fb
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_165.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:35410385bc64ee1af25f5e66fca77f84cef5425eed3ba5c0660d76504296571e
+size 243670
diff --git a/test/diagrams/graph_medium/diagrams_167.png b/test/diagrams/graph_medium/diagrams_167.png
new file mode 100644
index 0000000000000000000000000000000000000000..28072abafe827ce9e0a90fdb0ac7bff2649e1c49
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_167.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a08d3c82dd91d8c9818126960dedcd73006f8f0f521e8e87a7cea1cbb069a8e6
+size 220847
diff --git a/test/diagrams/graph_medium/diagrams_169.png b/test/diagrams/graph_medium/diagrams_169.png
new file mode 100644
index 0000000000000000000000000000000000000000..fd6f7c549153fcdb13863480a032cfdd48d9b529
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_169.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a2c4946b0c10892db126abf7d96d1151ac52c14ffb7852657af9588ea9b84730
+size 201798
diff --git a/test/diagrams/graph_medium/diagrams_171.png b/test/diagrams/graph_medium/diagrams_171.png
new file mode 100644
index 0000000000000000000000000000000000000000..ef8fc93dafebc8115b6ea87e62764f77ce8a9189
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_171.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6ef58223fe14b44cba6bc53e002508a14bf1ae6fef7ee928f5c001995dde15b5
+size 105210
diff --git a/test/diagrams/graph_medium/diagrams_172.png b/test/diagrams/graph_medium/diagrams_172.png
new file mode 100644
index 0000000000000000000000000000000000000000..66775937802b2a037e2deea9c6919c74e34e43aa
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_172.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:29f6760451933f9ac9d7394cac8672ab9b96a3de0a7772bf207c8d508291bd95
+size 139821
diff --git a/test/diagrams/graph_medium/diagrams_174.png b/test/diagrams/graph_medium/diagrams_174.png
new file mode 100644
index 0000000000000000000000000000000000000000..3dff0fbebfbc13a11a99924b278356b38b214cd9
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_174.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dced814613c9d087878daae36a583d1d95aacd268e36cd596b1b0425e1e89711
+size 183846
diff --git a/test/diagrams/graph_medium/diagrams_175.png b/test/diagrams/graph_medium/diagrams_175.png
new file mode 100644
index 0000000000000000000000000000000000000000..2b61f011b8b278882e3e7518a1708778b4cc08ee
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_175.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:974b296ac9b4fd985380eb021dcc6c68fafc78e30bee1c0c31b095207fae2c87
+size 185399
diff --git a/test/diagrams/graph_medium/diagrams_177.png b/test/diagrams/graph_medium/diagrams_177.png
new file mode 100644
index 0000000000000000000000000000000000000000..0fb32b0bf5b3b61f7065292952b806e13ea39c48
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_177.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dbbed19ece4696a56bbc0e088bb0c55a8b38b03dbb8287a45ca7eead04cc74ad
+size 147166
diff --git a/test/diagrams/graph_medium/diagrams_182.png b/test/diagrams/graph_medium/diagrams_182.png
new file mode 100644
index 0000000000000000000000000000000000000000..4705ef489c05f50b7f73bcda976b2e92121f46e3
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_182.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:14de762be31b8a279284e187a27eb908d178a13d5c0013cba51bbe1bfd37f5a8
+size 145902
diff --git a/test/diagrams/graph_medium/diagrams_187.png b/test/diagrams/graph_medium/diagrams_187.png
new file mode 100644
index 0000000000000000000000000000000000000000..4b2204944b27dd0d729d53babc924196a8e564db
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_187.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f87c3ad7c8b0687362d8b6f9314f59254092501b2f7513ce664ca86d83e1a886
+size 119363
diff --git a/test/diagrams/graph_medium/diagrams_188.png b/test/diagrams/graph_medium/diagrams_188.png
new file mode 100644
index 0000000000000000000000000000000000000000..35a3ecd43b4f2b44bfd8f61ac1c4c8c6b0a2c3c5
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_188.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5249884ce8d543033bcc4b3affd3e138b85e500c204226fec7f16ad573c54335
+size 143027
diff --git a/test/diagrams/graph_medium/diagrams_189.png b/test/diagrams/graph_medium/diagrams_189.png
new file mode 100644
index 0000000000000000000000000000000000000000..d0bfe4ec7b0ecb38a1e37c4dc7d2f0286c034ad7
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_189.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b1a3f8e741dbcfe80764e75cf03e81ec685be9c6d1afe2a337664d87cbaf31b6
+size 223316
diff --git a/test/diagrams/graph_medium/diagrams_196.png b/test/diagrams/graph_medium/diagrams_196.png
new file mode 100644
index 0000000000000000000000000000000000000000..89c3804ffd26732f44df3acaf949b4ed6876c61c
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_196.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:74309a3942afa635f658dddc5efa43e178a7ca60a4853ecf25a7e2ea5b281ab4
+size 138861
diff --git a/test/diagrams/graph_medium/diagrams_197.png b/test/diagrams/graph_medium/diagrams_197.png
new file mode 100644
index 0000000000000000000000000000000000000000..65076b3f33c2dab52453cde4fe7b4408e911dd80
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_197.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fb758f66a47f50857520ccdc282c8b6d6cb9bc40bd0465390f7d4e0e050c7e47
+size 146050
diff --git a/test/diagrams/graph_medium/diagrams_198.png b/test/diagrams/graph_medium/diagrams_198.png
new file mode 100644
index 0000000000000000000000000000000000000000..698610aa53a6aca6aa9d6c6d96dfb4c0e7f0c7be
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_198.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4b6299daf02c3368a80fcfcb061eadd8e058bfbe472d9698edfe9f082b90f206
+size 233293
diff --git a/test/diagrams/graph_medium/diagrams_199.png b/test/diagrams/graph_medium/diagrams_199.png
new file mode 100644
index 0000000000000000000000000000000000000000..d8878308b99270c8e289a9434ad4c974b49e0ca6
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_199.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:09104f243ad762283970869897030fbcc195826d38a926d53b97f4612c1b74d4
+size 203710
diff --git a/test/diagrams/graph_medium/diagrams_200.png b/test/diagrams/graph_medium/diagrams_200.png
new file mode 100644
index 0000000000000000000000000000000000000000..8d32e32afb113d24840a2d1a95a290729f9005db
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_200.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3948fd8ee33ff5f9edeeefbcb75a66dccd34b8218d8361f675f8e70c579de05e
+size 216038
diff --git a/test/diagrams/graph_medium/diagrams_204.png b/test/diagrams/graph_medium/diagrams_204.png
new file mode 100644
index 0000000000000000000000000000000000000000..38393462ec8f493ecfe8fe770a1a4d49e4410b52
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_204.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:51f29b239cd699a02d8b501bac90a68a713c24d04144fcddd684d36c73d8bdf5
+size 167421
diff --git a/test/diagrams/graph_medium/diagrams_206.png b/test/diagrams/graph_medium/diagrams_206.png
new file mode 100644
index 0000000000000000000000000000000000000000..ee01ca835448ad67ff0c1289531fa2aaa0613809
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_206.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7ae1eefd65ed03c631d35d8d452193f319d434eaa57e3b072fde8913d2667124
+size 193607
diff --git a/test/diagrams/graph_medium/diagrams_209.png b/test/diagrams/graph_medium/diagrams_209.png
new file mode 100644
index 0000000000000000000000000000000000000000..0f471a97bb003698c5fcd4cd9909a831278a1bc2
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_209.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0c4935a0982ceb9ef13ddef2d49c969e4fa41b5b90c89d9934a2a2238b781be3
+size 224528
diff --git a/test/diagrams/graph_medium/diagrams_210.png b/test/diagrams/graph_medium/diagrams_210.png
new file mode 100644
index 0000000000000000000000000000000000000000..748743ed8b283e75a5fa8095399280e93b62dd4a
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_210.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8641bb95568f82f1dfb572124ce95dda7d78a85f2855405e751c66ec2ca90153
+size 126115
diff --git a/test/diagrams/graph_medium/diagrams_213.png b/test/diagrams/graph_medium/diagrams_213.png
new file mode 100644
index 0000000000000000000000000000000000000000..10423bbd42d72c258137813434b917cdb3e6be70
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_213.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f95409981f1840a6a1d8a600d30f05e4a403d9496c59b0343a7d750d7dba5f35
+size 190429
diff --git a/test/diagrams/graph_medium/diagrams_215.png b/test/diagrams/graph_medium/diagrams_215.png
new file mode 100644
index 0000000000000000000000000000000000000000..bd39c30755497663f53dbc58a66f146bd1b9f345
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_215.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2e55d4ed77955879004d83ebc85f4b4799b626f13b667d2bdec4a8a9aa3b22f4
+size 173125
diff --git a/test/diagrams/graph_medium/diagrams_220.png b/test/diagrams/graph_medium/diagrams_220.png
new file mode 100644
index 0000000000000000000000000000000000000000..37564dc44e7beeb68927fb31c3ceeef6c6e56583
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_220.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:564a76d24373e77d0e55afb1a9f2ad3d51f38b990f186289e71cef11db9b455b
+size 131264
diff --git a/test/diagrams/graph_medium/diagrams_229.png b/test/diagrams/graph_medium/diagrams_229.png
new file mode 100644
index 0000000000000000000000000000000000000000..e8caadde854974621771714ee57e6bd8d40c00f8
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_229.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0d11e467ad56e6ec1c3230db88a76e564bbdb21bb16c655f549e5e23878c0528
+size 170359
diff --git a/test/diagrams/graph_medium/diagrams_233.png b/test/diagrams/graph_medium/diagrams_233.png
new file mode 100644
index 0000000000000000000000000000000000000000..242fe4e374017e3b4ab0dcdfe5ed71858b5e0dbc
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_233.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5be6abcddc90677690a1e308a94df67a02a37b9c3c90da9b6ade245bbe8104a4
+size 127934
diff --git a/test/diagrams/graph_medium/diagrams_235.png b/test/diagrams/graph_medium/diagrams_235.png
new file mode 100644
index 0000000000000000000000000000000000000000..633a66a2c56af454e4ca9906dd3a9cd91d59be59
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_235.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2fd063365e5905111c2b07b75fd2e9d77757bb44195e40a8d35eb50e92b6fc50
+size 191961
diff --git a/test/diagrams/graph_medium/diagrams_24.png b/test/diagrams/graph_medium/diagrams_24.png
new file mode 100644
index 0000000000000000000000000000000000000000..fbe88d0b0c2f909b8c2a72e2ba28a2bb4c069d79
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_24.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b46771202b30f4e59f673e23b1be61d42c5dad4a11897173ecc842e9dce404ea
+size 221613
diff --git a/test/diagrams/graph_medium/diagrams_240.png b/test/diagrams/graph_medium/diagrams_240.png
new file mode 100644
index 0000000000000000000000000000000000000000..0347e58b731ad123072330be5576bfb879005c7f
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_240.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d636198f2a79024a14c35ed9f0d3d4d95c95fe166462e4ed326c767d89d78b12
+size 178329
diff --git a/test/diagrams/graph_medium/diagrams_241.png b/test/diagrams/graph_medium/diagrams_241.png
new file mode 100644
index 0000000000000000000000000000000000000000..50c24de13084293ca9f03fbf1bbff975618689a8
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_241.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:be8599c03b6890e0fd22bda4bb0ce1c3b4308258addcc6b9f0823bcc32b4e572
+size 204088
diff --git a/test/diagrams/graph_medium/diagrams_249.png b/test/diagrams/graph_medium/diagrams_249.png
new file mode 100644
index 0000000000000000000000000000000000000000..15ef0672287384acf6584ce9fbb868474a47a241
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_249.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ab8dd27d72b4b605e843066811369a36051a66db65efe54ee25873e16f5a7aa9
+size 220924
diff --git a/test/diagrams/graph_medium/diagrams_250.png b/test/diagrams/graph_medium/diagrams_250.png
new file mode 100644
index 0000000000000000000000000000000000000000..a4c6d1aaf5a36d3da36506966e10a526094b60bd
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_250.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c10c872081dadc2afb733e75b380c0d48df789700b5cdebdecdf548bd051257a
+size 156256
diff --git a/test/diagrams/graph_medium/diagrams_256.png b/test/diagrams/graph_medium/diagrams_256.png
new file mode 100644
index 0000000000000000000000000000000000000000..95af3e62d968571039a0589a78d36785a38d506e
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_256.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f0ba1deb50df147221e1510220be9b8de0005f1505446cc423318bbf4642c31f
+size 205438
diff --git a/test/diagrams/graph_medium/diagrams_259.png b/test/diagrams/graph_medium/diagrams_259.png
new file mode 100644
index 0000000000000000000000000000000000000000..7f7e52fc25bd6091e15d977a6cdff0243c27466e
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_259.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:09adc4c65007d3dd7c250d11a022b14831d83246890d9f0f4ae9b447bafca6ee
+size 204970
diff --git a/test/diagrams/graph_medium/diagrams_263.png b/test/diagrams/graph_medium/diagrams_263.png
new file mode 100644
index 0000000000000000000000000000000000000000..29c4a62c42246672302c182620b2adc04186570d
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_263.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:736f21d5829b8159818582aa40000586b9d2f27c904fad36faa1df22da036798
+size 177495
diff --git a/test/diagrams/graph_medium/diagrams_265.png b/test/diagrams/graph_medium/diagrams_265.png
new file mode 100644
index 0000000000000000000000000000000000000000..373e32b375495e45e38b626b54723c9dc4639fab
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_265.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b038df81f61636755240c9426412e0d9c58f73e8c973e9dfa57941194bbed107
+size 177778
diff --git a/test/diagrams/graph_medium/diagrams_27.png b/test/diagrams/graph_medium/diagrams_27.png
new file mode 100644
index 0000000000000000000000000000000000000000..c7388617c2dcdbb0cae30ffed185c8a1596343df
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_27.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:046e49bb2072d3e10064a878b4ea7a2f5d2833b830b7285612968b3352c53ac7
+size 150546
diff --git a/test/diagrams/graph_medium/diagrams_270.png b/test/diagrams/graph_medium/diagrams_270.png
new file mode 100644
index 0000000000000000000000000000000000000000..75819f4f1974fac835183931cfe1b03251925270
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_270.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:08e847cfc23d2126399242a2e98f793cf56cc8ec40931face56f0702250de2a1
+size 196177
diff --git a/test/diagrams/graph_medium/diagrams_272.png b/test/diagrams/graph_medium/diagrams_272.png
new file mode 100644
index 0000000000000000000000000000000000000000..a542cf4285bc894cbc5a09162d7032c8cbbf9af5
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_272.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2fda0e00e4108a5f00fc9645a67e24c615964919488b83b3ad4fb5bdbcfa02c2
+size 155752
diff --git a/test/diagrams/graph_medium/diagrams_284.png b/test/diagrams/graph_medium/diagrams_284.png
new file mode 100644
index 0000000000000000000000000000000000000000..5084fb4987717b485717ec8d46c9ef200a5d8d9a
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_284.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b2484cb0806da7b5d12bc3a92052a5f2e355c81cf54f42a0964ef42583f0033b
+size 193747
diff --git a/test/diagrams/graph_medium/diagrams_286.png b/test/diagrams/graph_medium/diagrams_286.png
new file mode 100644
index 0000000000000000000000000000000000000000..f70f5c163c83a0d6566e2dc79e150eaed89726f9
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_286.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:70b5922867a1c7785efd403c905b6cdfa965402ace2ea51d06127ffcdeb7207b
+size 163022
diff --git a/test/diagrams/graph_medium/diagrams_287.png b/test/diagrams/graph_medium/diagrams_287.png
new file mode 100644
index 0000000000000000000000000000000000000000..8d18bf5547a91819ddb4cfb6b74d6ac52364678c
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_287.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7fc3fdf9e6adde7eae017359d41a2a8369a42fc2012aabf65af9e77af12faf49
+size 160179
diff --git a/test/diagrams/graph_medium/diagrams_29.png b/test/diagrams/graph_medium/diagrams_29.png
new file mode 100644
index 0000000000000000000000000000000000000000..095024755c8b726f7bd5da7495d1471f2ee983b6
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_29.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:84c67555c7f7042859a063548c050a56172e7604a9e48e4c77f5d6faf5542fe7
+size 115706
diff --git a/test/diagrams/graph_medium/diagrams_290.png b/test/diagrams/graph_medium/diagrams_290.png
new file mode 100644
index 0000000000000000000000000000000000000000..0debf20e7d350fb8a38a8501c674c6a8a553a6eb
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_290.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b6b843a3b2e6bb5aa37afa3311e12fc3084af47b265584af4f5c1581fe03c126
+size 183965
diff --git a/test/diagrams/graph_medium/diagrams_291.png b/test/diagrams/graph_medium/diagrams_291.png
new file mode 100644
index 0000000000000000000000000000000000000000..2f605ffd4ee041e94702c7b65ba019a46ebd05c7
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_291.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7f6406d1f33e5896989cb7118847ee8079ce1dc90fe970155f0ec25a2243a12b
+size 162426
diff --git a/test/diagrams/graph_medium/diagrams_294.png b/test/diagrams/graph_medium/diagrams_294.png
new file mode 100644
index 0000000000000000000000000000000000000000..81fd199ebbda60d96ca981e8167926ea3f1cd4f0
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_294.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9de198abc0df326bfa2416e3610a33e7d871111a02cbf830c97371061a724362
+size 148183
diff --git a/test/diagrams/graph_medium/diagrams_295.png b/test/diagrams/graph_medium/diagrams_295.png
new file mode 100644
index 0000000000000000000000000000000000000000..1dbe72804cde88e898a05fced791fef5cd963ff8
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_295.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b4718a2db1f327a2c5e3a9d14b3ebae7f682275c72c104668a46e5ad31134ba3
+size 191675
diff --git a/test/diagrams/graph_medium/diagrams_296.png b/test/diagrams/graph_medium/diagrams_296.png
new file mode 100644
index 0000000000000000000000000000000000000000..d6c7da48baa8fd93daef99dd71c3ac93b8761e2e
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_296.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7bc8b54a9634d9d30e46c90dd91909a6619b5a0c4ecc6b9a18d8910058689e95
+size 186299
diff --git a/test/diagrams/graph_medium/diagrams_299.png b/test/diagrams/graph_medium/diagrams_299.png
new file mode 100644
index 0000000000000000000000000000000000000000..78d078951a7f7f4eb4f058afc4f2fac98cd64b17
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_299.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c52d9795bbf328dfe257a06cd0022dcd95ebfc4686228eaccff10e0347c91e3b
+size 155629
diff --git a/test/diagrams/graph_medium/diagrams_3.png b/test/diagrams/graph_medium/diagrams_3.png
new file mode 100644
index 0000000000000000000000000000000000000000..110347780937bf2e49c2f499456d1e9d15832104
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_3.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:56dad53fd3ed7d0c4574527b4ea79e23cca6dbe2564d75df72f3ad14537f16fe
+size 169812
diff --git a/test/diagrams/graph_medium/diagrams_300.png b/test/diagrams/graph_medium/diagrams_300.png
new file mode 100644
index 0000000000000000000000000000000000000000..0a42dac937f33f45f844a18f92a9b21e21bf9c55
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_300.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e16eeb9a0895a06760faadfd082b80b3a6d493efee7f9ffd9def361d9c3d004e
+size 257641
diff --git a/test/diagrams/graph_medium/diagrams_301.png b/test/diagrams/graph_medium/diagrams_301.png
new file mode 100644
index 0000000000000000000000000000000000000000..eb63a88b72a82196e8527dabeb3161c0a11848ff
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_301.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c61b8ff6b6650ea361bdfd04f608099563d97e62f25e42c6dd1fd55fa3ff84bd
+size 135058
diff --git a/test/diagrams/graph_medium/diagrams_304.png b/test/diagrams/graph_medium/diagrams_304.png
new file mode 100644
index 0000000000000000000000000000000000000000..c15a285ddd07a9e802bf4d79e9664bec34154552
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_304.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:727164a3b74dba919cde238c0b1a3c23127b809207b3b2545164eb72e3b2f3de
+size 186175
diff --git a/test/diagrams/graph_medium/diagrams_306.png b/test/diagrams/graph_medium/diagrams_306.png
new file mode 100644
index 0000000000000000000000000000000000000000..5165d64d4dd579f9ffadad7d4429dbf2c2de7d19
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_306.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8a29ee0d438be91ea7dfdbc8879ff2c7deca008d0e7aba5a9dabf316f46eeb23
+size 149983
diff --git a/test/diagrams/graph_medium/diagrams_307.png b/test/diagrams/graph_medium/diagrams_307.png
new file mode 100644
index 0000000000000000000000000000000000000000..b55ef080f18fe9d65c4447035549ab561c06cbea
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_307.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0acee50c1ca1c01ffa205bfc2e2e2be02c091c723cccd6f15ac2e5e8157be499
+size 172199
diff --git a/test/diagrams/graph_medium/diagrams_311.png b/test/diagrams/graph_medium/diagrams_311.png
new file mode 100644
index 0000000000000000000000000000000000000000..09d2cdf2d9b035cff235dd9c3e243ae19855a2af
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_311.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3e0491839169f61c14cb780c9d371deb7a2ae76e2fce18d74586bed0a8aa6d83
+size 187864
diff --git a/test/diagrams/graph_medium/diagrams_312.png b/test/diagrams/graph_medium/diagrams_312.png
new file mode 100644
index 0000000000000000000000000000000000000000..e0f84de5d25508d79e41abbf3168359da347b92c
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_312.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:24eae62ba31d99e4a7ed5c1c3ae673a8f610d658b33e470ecb5370cd2c2135eb
+size 168410
diff --git a/test/diagrams/graph_medium/diagrams_313.png b/test/diagrams/graph_medium/diagrams_313.png
new file mode 100644
index 0000000000000000000000000000000000000000..6ee4b6a1c190b127d1bbc1af7897a54247364606
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_313.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f8e5c9a5f9bc1e2d1b01332d54e38f9898cb03476cc43417bcc1d022d79b3687
+size 177234
diff --git a/test/diagrams/graph_medium/diagrams_314.png b/test/diagrams/graph_medium/diagrams_314.png
new file mode 100644
index 0000000000000000000000000000000000000000..df9f8825d4e30f754e1db36e7baa5845bee265d8
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_314.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b683b65cc0389dfcedb39713b94835a6cb0638cd7d417c02b3da2a8569e537f6
+size 145766
diff --git a/test/diagrams/graph_medium/diagrams_315.png b/test/diagrams/graph_medium/diagrams_315.png
new file mode 100644
index 0000000000000000000000000000000000000000..94f08371ee7f5ee75444567c16a1b31d257fccf5
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_315.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:30936ec176d63568b06ffa8c2cc5f63f9ba413f84fbcf6e76fb7b7bebf54ca28
+size 184624
diff --git a/test/diagrams/graph_medium/diagrams_32.png b/test/diagrams/graph_medium/diagrams_32.png
new file mode 100644
index 0000000000000000000000000000000000000000..7e99ea2e2ff74922654ca6cd82ca335d8a23f687
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_32.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e1f420f608275e69c7a63c82e01b2d26140e57b10f24534e9e0f7cbfebbf0829
+size 185168
diff --git a/test/diagrams/graph_medium/diagrams_320.png b/test/diagrams/graph_medium/diagrams_320.png
new file mode 100644
index 0000000000000000000000000000000000000000..dd0e3ca24c91581ea7785b59e7d8a1980f03a2d6
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_320.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6d2f9748e2ef48c22c35cd6bb75a38a52ef06c9c3b741badfc903d17d4393d94
+size 164558
diff --git a/test/diagrams/graph_medium/diagrams_321.png b/test/diagrams/graph_medium/diagrams_321.png
new file mode 100644
index 0000000000000000000000000000000000000000..09dacb7bfba0b0138386edbd25fd131721603689
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_321.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:778490ea25164b8ae34ba0a0be29e3577415514aa36d9f5b95617312652a1e05
+size 207003
diff --git a/test/diagrams/graph_medium/diagrams_322.png b/test/diagrams/graph_medium/diagrams_322.png
new file mode 100644
index 0000000000000000000000000000000000000000..17c94c93796baba05a9123e44887a77f02da7c4b
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_322.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eee9edcf65a14cf0afee41baade135d0db48318be342fb8a4fde9d2a89d3dd2f
+size 123510
diff --git a/test/diagrams/graph_medium/diagrams_324.png b/test/diagrams/graph_medium/diagrams_324.png
new file mode 100644
index 0000000000000000000000000000000000000000..7a506e8f6d0e7ab598d534d24e1565ed282b1360
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_324.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:be393a2b8d616547d0caf62060071141e718fe07eb1aa9a1b0a0b99e5183195a
+size 190773
diff --git a/test/diagrams/graph_medium/diagrams_325.png b/test/diagrams/graph_medium/diagrams_325.png
new file mode 100644
index 0000000000000000000000000000000000000000..92d1682348a2b92e9bee6bdf303151a62dfa2779
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_325.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:42a7eb52550f103d7c4ae210a90fd724265f37d742ccf47d35fd2ef5c38c5966
+size 223202
diff --git a/test/diagrams/graph_medium/diagrams_326.png b/test/diagrams/graph_medium/diagrams_326.png
new file mode 100644
index 0000000000000000000000000000000000000000..b9b804731f37a7845060e36a78c58899a287d042
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_326.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f9d7b647976b653137cd32794d4e96b4b6cee72b4dd9324ede35d29e415e718a
+size 174896
diff --git a/test/diagrams/graph_medium/diagrams_330.png b/test/diagrams/graph_medium/diagrams_330.png
new file mode 100644
index 0000000000000000000000000000000000000000..76572d747239ebc0437be5a558d072091bba3b3a
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_330.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8b704140da8b643eaea1fe92bf3a2f28d5a9716a3e1879fc6fa9c119031c44d4
+size 171063
diff --git a/test/diagrams/graph_medium/diagrams_332.png b/test/diagrams/graph_medium/diagrams_332.png
new file mode 100644
index 0000000000000000000000000000000000000000..48622a21573dbcd838191afed1c4f74a52bae15b
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_332.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3f4f09994fcbffbf4d9df73dca19c204ccf59f17a8ef8fd52438376bc2e02ffa
+size 191988
diff --git a/test/diagrams/graph_medium/diagrams_333.png b/test/diagrams/graph_medium/diagrams_333.png
new file mode 100644
index 0000000000000000000000000000000000000000..f50e65f5c1add190c246915796de4b309def91bd
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_333.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ad4bdd1372f5a209aed64da457c84d77afdcdef7f5eb3f7ae21d698d52cff94a
+size 193052
diff --git a/test/diagrams/graph_medium/diagrams_334.png b/test/diagrams/graph_medium/diagrams_334.png
new file mode 100644
index 0000000000000000000000000000000000000000..e8bea043220d82bfca1fb159f81ec22bd274faf4
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_334.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cdeffbf084bc01ce67b295983be2276d34593d3dca9cb9a341bcc09a3af336cc
+size 142021
diff --git a/test/diagrams/graph_medium/diagrams_335.png b/test/diagrams/graph_medium/diagrams_335.png
new file mode 100644
index 0000000000000000000000000000000000000000..c18cb7952ff726d2b4488e9c928639f8b78957f3
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_335.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:786919f33224801bf188c19c251bd902332bb53c50107d68be9b7c9896313e99
+size 183112
diff --git a/test/diagrams/graph_medium/diagrams_345.png b/test/diagrams/graph_medium/diagrams_345.png
new file mode 100644
index 0000000000000000000000000000000000000000..bad1f7269a80a2a088e8a00c070e3092ef67e64a
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_345.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2824529ddbed94debb7a8edc63bd817c2d2374348b62860d74f4fc211c430511
+size 148966
diff --git a/test/diagrams/graph_medium/diagrams_346.png b/test/diagrams/graph_medium/diagrams_346.png
new file mode 100644
index 0000000000000000000000000000000000000000..ee3282ac2d82a0aac6dc40424b847a542282de86
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_346.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b75a99b4d0c5d22f20ac568d83bcc414d2e4cb242a1b63538b6adc545ae22b46
+size 157716
diff --git a/test/diagrams/graph_medium/diagrams_35.png b/test/diagrams/graph_medium/diagrams_35.png
new file mode 100644
index 0000000000000000000000000000000000000000..2fdf438aa179fcbb450e2c3864c76a4237fb3f6f
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_35.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:63b821ee5617b8622e02538ab05050e188281c97837627bdd66c6dd460601999
+size 175243
diff --git a/test/diagrams/graph_medium/diagrams_350.png b/test/diagrams/graph_medium/diagrams_350.png
new file mode 100644
index 0000000000000000000000000000000000000000..6ea91eb5d13c03b6cebf57e77f1d1d88d917fb2a
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_350.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fcccfbe45501dbebc882087cacaa7f21f521eb6a17fc91e29b6bea322aaa2ab7
+size 150443
diff --git a/test/diagrams/graph_medium/diagrams_351.png b/test/diagrams/graph_medium/diagrams_351.png
new file mode 100644
index 0000000000000000000000000000000000000000..be2463ec79bcb1c2a3756645ff37338c1c843c22
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_351.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:052f835fc4bb4759bd6fe1f87b87576b222be98c9e281e7a405afee515edaa33
+size 156775
diff --git a/test/diagrams/graph_medium/diagrams_352.png b/test/diagrams/graph_medium/diagrams_352.png
new file mode 100644
index 0000000000000000000000000000000000000000..f6015f4d6a93e2020341ca5d800b8a8adfcd5d2b
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_352.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8e2d5431107010a35ccd163c10d89ec616555258e052baacbd796473d710b0c1
+size 184251
diff --git a/test/diagrams/graph_medium/diagrams_353.png b/test/diagrams/graph_medium/diagrams_353.png
new file mode 100644
index 0000000000000000000000000000000000000000..f04574292e54ec60b4365eac10062ca84ad57277
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_353.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cf6689452bc0f8b007e27e59f4a7d76ebca225096684cea533932ce15338d169
+size 122789
diff --git a/test/diagrams/graph_medium/diagrams_36.png b/test/diagrams/graph_medium/diagrams_36.png
new file mode 100644
index 0000000000000000000000000000000000000000..ead9308a8bc0ddb4a2652bc5bd28ed079f14f41d
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_36.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d893fdb757fd2c7955b522ae7c36a18f82389a701a4fc8dfc4b1de387c10a0d7
+size 211790
diff --git a/test/diagrams/graph_medium/diagrams_39.png b/test/diagrams/graph_medium/diagrams_39.png
new file mode 100644
index 0000000000000000000000000000000000000000..c3fc7bb30bcfaf78132907d4b4c9b95ca44b7d84
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_39.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6a09880df89ae6ad6a13765ec769dbd51c0d18ff87417c284f1a81fadb28eb87
+size 184480
diff --git a/test/diagrams/graph_medium/diagrams_40.png b/test/diagrams/graph_medium/diagrams_40.png
new file mode 100644
index 0000000000000000000000000000000000000000..811ca3dcee1f138406739b20f45780fd5f4dcf8c
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_40.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7829373abe2d8a7e433b9de87b0378b3628593f15dd772830ccd03d55e5bb6fc
+size 189223
diff --git a/test/diagrams/graph_medium/diagrams_43.png b/test/diagrams/graph_medium/diagrams_43.png
new file mode 100644
index 0000000000000000000000000000000000000000..642ebf0756c58c3052d24f1aa6645e9f54341fd2
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_43.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f728c2f9bdd460bebce39707d840f28af88a57bb43b5a9a21f1c57191c83d842
+size 135760
diff --git a/test/diagrams/graph_medium/diagrams_50.png b/test/diagrams/graph_medium/diagrams_50.png
new file mode 100644
index 0000000000000000000000000000000000000000..0505f86e1299f0623841c3346c6a6576478a80bd
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_50.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0288d186298e3a3ae97c7ab150b3947c573328ff226242b2f4a88f15e8cb70f8
+size 136875
diff --git a/test/diagrams/graph_medium/diagrams_51.png b/test/diagrams/graph_medium/diagrams_51.png
new file mode 100644
index 0000000000000000000000000000000000000000..02d5b95978c935aa2e46ecdc7033d320748ad8e0
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_51.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f4442eb274c6a21d11b302a58e020e3e73ed9bcaab60a0e31556f534e01ad9e1
+size 161716
diff --git a/test/diagrams/graph_medium/diagrams_56.png b/test/diagrams/graph_medium/diagrams_56.png
new file mode 100644
index 0000000000000000000000000000000000000000..cbb4dfa4ec9166925da0059a43cb4d1e82921c3a
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_56.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:14b97099096b63a2fbcbce44cb9658c386d0786668b8760309da7ddc8d1978fe
+size 154188
diff --git a/test/diagrams/graph_medium/diagrams_59.png b/test/diagrams/graph_medium/diagrams_59.png
new file mode 100644
index 0000000000000000000000000000000000000000..f2e39d957fd5dc24f56db0886dafd009577553ab
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_59.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6103921b945a1cd85a717de2d054b95d0061ae177f3da695967cb80744ce4424
+size 143705
diff --git a/test/diagrams/graph_medium/diagrams_66.png b/test/diagrams/graph_medium/diagrams_66.png
new file mode 100644
index 0000000000000000000000000000000000000000..5d4544eda1f6cfd2c883091a9570806fa40d0878
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_66.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:22c34ac57523a072f8172251c1996de63933c29d22bc377703980cf8d8887bd0
+size 119325
diff --git a/test/diagrams/graph_medium/diagrams_67.png b/test/diagrams/graph_medium/diagrams_67.png
new file mode 100644
index 0000000000000000000000000000000000000000..8dac0cd24b85ee6deefd1fb837a1813efc016b1c
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_67.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f6d2f3eb3eb51d9eb128eae90139c350bbc32796e57832d6e5130381e26471c1
+size 180241
diff --git a/test/diagrams/graph_medium/diagrams_68.png b/test/diagrams/graph_medium/diagrams_68.png
new file mode 100644
index 0000000000000000000000000000000000000000..12c4d010e6182a07ef44801a9128e217f441bcec
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_68.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0d7725c0205320be46443ba44e40f8fbca7b3147aa7a73883f54c2fd3f70e613
+size 128881
diff --git a/test/diagrams/graph_medium/diagrams_69.png b/test/diagrams/graph_medium/diagrams_69.png
new file mode 100644
index 0000000000000000000000000000000000000000..7cc217abedfda86606f222e8e81fa8b6f610af72
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_69.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5892577de1c6ba9b6c5f226695df364266cf0d19a2bf5e32c6db0d08cdd4516b
+size 174799
diff --git a/test/diagrams/graph_medium/diagrams_7.png b/test/diagrams/graph_medium/diagrams_7.png
new file mode 100644
index 0000000000000000000000000000000000000000..bcbaa0bf4a8f9c44467d3460b7e8327cff6df973
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_7.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0f598112361a816fabf8963652c3a3ebbd85b5321d399d875e2fe8c06f840dbd
+size 161046
diff --git a/test/diagrams/graph_medium/diagrams_70.png b/test/diagrams/graph_medium/diagrams_70.png
new file mode 100644
index 0000000000000000000000000000000000000000..cee2cfa879dd80ce242836adc6a671f09943bb62
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_70.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1a1762b8b5273cf489dae3393ae89030373bcb6cf2de8c0f4b02a43a609b5aa5
+size 196273
diff --git a/test/diagrams/graph_medium/diagrams_72.png b/test/diagrams/graph_medium/diagrams_72.png
new file mode 100644
index 0000000000000000000000000000000000000000..07ffa3a1db82fa51b8146ee59e7a0e7c3ea00e53
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_72.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f759db7053f516b11db61f9e0a37fb36a71b268f188babb7fde98007cbba33b6
+size 302995
diff --git a/test/diagrams/graph_medium/diagrams_75.png b/test/diagrams/graph_medium/diagrams_75.png
new file mode 100644
index 0000000000000000000000000000000000000000..4a8417dd56616950cd4f87189d8d9f963c1f86b2
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_75.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c4bc04921385f2a87199db56c32740807d992e34e635b99f18a15bb880bee610
+size 192432
diff --git a/test/diagrams/graph_medium/diagrams_76.png b/test/diagrams/graph_medium/diagrams_76.png
new file mode 100644
index 0000000000000000000000000000000000000000..86d9cb0516c8dfe34a3ef3e669eb189464b03f65
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_76.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1fc6fabe94283f2204a6cd21bd238aa2b8f295b3e71d8c83395382d586ef1438
+size 138935
diff --git a/test/diagrams/graph_medium/diagrams_79.png b/test/diagrams/graph_medium/diagrams_79.png
new file mode 100644
index 0000000000000000000000000000000000000000..76a6663bd5665eb56f15187d31ec700a9bd49a4b
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_79.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:247ccbc1d38846d75fd680b73f1324439b048ebaa2df404e716dc0edddb4ff47
+size 142549
diff --git a/test/diagrams/graph_medium/diagrams_81.png b/test/diagrams/graph_medium/diagrams_81.png
new file mode 100644
index 0000000000000000000000000000000000000000..2f38619c842dcab3a2c39b3b9819ccd71ba2a253
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_81.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:71c80179227168119419746c2a2579b571594d566435bc5dc704ded7a2135240
+size 172344
diff --git a/test/diagrams/graph_medium/diagrams_83.png b/test/diagrams/graph_medium/diagrams_83.png
new file mode 100644
index 0000000000000000000000000000000000000000..f0e188d17cfeb7385a7b765e0d103d9966e00810
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_83.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7e460b9b50a0c78aa1e704b29834a4969a95f920266493e12deab9e1c0cfbea1
+size 184964
diff --git a/test/diagrams/graph_medium/diagrams_84.png b/test/diagrams/graph_medium/diagrams_84.png
new file mode 100644
index 0000000000000000000000000000000000000000..bfa934aa24e70cd99c8fc9dbfdd40eea8b327d66
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_84.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d5bd0a03f3d86529cee39a94afeddfac73b600d660251c9dc349047becdab5a1
+size 173087
diff --git a/test/diagrams/graph_medium/diagrams_89.png b/test/diagrams/graph_medium/diagrams_89.png
new file mode 100644
index 0000000000000000000000000000000000000000..ce50d8f86ad44013a693a042791d19af218264ec
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_89.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:63c1a171781400df4df39948ac4c2e818c5ff3322707d511637822128caf73b6
+size 200030
diff --git a/test/diagrams/graph_medium/diagrams_90.png b/test/diagrams/graph_medium/diagrams_90.png
new file mode 100644
index 0000000000000000000000000000000000000000..a9f2d1dc18ef960f4847ece42048b9c7821b233c
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_90.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3e4b23f25f50cc292e2f48304aeb6278d896505829f411b984856ed4040dbcef
+size 153579
diff --git a/test/diagrams/graph_medium/diagrams_93.png b/test/diagrams/graph_medium/diagrams_93.png
new file mode 100644
index 0000000000000000000000000000000000000000..237b27e7542461dc2039070289d6115303bdc8f1
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_93.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bcbbce72effde143f7839821e50f7b4b87744035a98f3707f49a3361ab95a403
+size 105783
diff --git a/test/diagrams/graph_medium/diagrams_95.png b/test/diagrams/graph_medium/diagrams_95.png
new file mode 100644
index 0000000000000000000000000000000000000000..4937ecdf1ff67fccaa4c0ca9cd01521951564bd7
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_95.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:251c58e7e91cb072771b32a59e162ff755e6c4e4f133e86b1235dc4c8a404f3b
+size 139825
diff --git a/test/diagrams/graph_medium/diagrams_97.png b/test/diagrams/graph_medium/diagrams_97.png
new file mode 100644
index 0000000000000000000000000000000000000000..7b174188984a88d9ba93f25d2e260de2eb3ea252
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_97.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9d69cda1b318759ce1b6496d53357c7ff19697083623ce8b9631678719fc737a
+size 171714
diff --git a/test/diagrams/graph_medium/diagrams_98.png b/test/diagrams/graph_medium/diagrams_98.png
new file mode 100644
index 0000000000000000000000000000000000000000..50dcfd235df7c76c86312c83d7f7194992e6de18
--- /dev/null
+++ b/test/diagrams/graph_medium/diagrams_98.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1247fb72c77b2b3cb2850ce7b17421b487f8e02bd98b2c582e2f47d8e01d0223
+size 213716
diff --git a/test/diagrams/scanned_easy/diagrams_1.dot b/test/diagrams/scanned_easy/diagrams_1.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ebf41ef60c4378225d637d1ab94f0b123f67025d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_1.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=BT
+	N0 [label="Account Verification" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+	N1 [label="Credit Card Application" color="#BDBDBD" fillcolor="#F5F5F5" shape=predefinedprocess style=filled]
+	N2 [label="Treasury Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+	N3 [label="Securities Trading" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+	N4 [label="KYC Validation" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N5 [label="Payment Gateway Integration" color="#A2D0FF" fillcolor="#E8F0FF" shape=preparation style=filled]
+	N6 [label="Financial Advisory" color="#BDBDBD" fillcolor="#F5F5F5" shape=preparation style=filled]
+	N7 [label="Loan Processing" color="#BDBDBD" fillcolor="#F5F5F5" shape=predefinedprocess style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="funds" dir=forward]
+	N1 -> N2 [color="#BDBDBD" penwidth=1.5 style=dashed label="checks" dir=forward]
+	N2 -> N3 [color="#BDBDBD" penwidth=1.5 style=dashed label="verifies" dir=forward]
+	N3 -> N4 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#A2D0FF" penwidth=1.5 style=solid label="forecasts" dir=forward]
+	N4 -> N7 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N7 -> N6 [color="#BDBDBD" penwidth=1.5 style=dashed label="rejects" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_100.txt b/test/diagrams/scanned_easy/diagrams_100.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d5a224dba936a3de30468315c93803c65a1f403d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_100.txt
@@ -0,0 +1,13 @@
+<Bias Mitigation, connectedTo, Internal Investigations>
+<Code of Conduct Implementation, connectedTo, Data Privacy Compliance>
+<Compliance Hotlines, connectedTo, Conflict of Interest Management>
+<Compliance Hotlines, connectedTo, Transparent Communication>
+<Compliance Software Implementation, connectedTo, Incident Response Planning>
+<Compliance Training, reports, Code of Conduct Implementation>
+<Data Privacy Compliance, transparency, Reporting Mechanisms>
+<Ethical AI Guidelines, assesses, Compliance Training>
+<Incident Response Planning, connectedTo, Compliance Hotlines>
+<Internal Investigations, consults, Compliance Software Implementation>
+<Reporting Mechanisms, laws, Conflict of Interest Management>
+<Transparent Communication, codes, Conflict of Interest Management>
+<Transparent Communication, procedures, Ethical AI Guidelines>
diff --git a/test/diagrams/scanned_easy/diagrams_101.dot b/test/diagrams/scanned_easy/diagrams_101.dot
new file mode 100644
index 0000000000000000000000000000000000000000..654c0c166cddd9a9ea439865e135c71d2c15a8f1
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_101.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=BT
+	N0 [label="DNA Profiling" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N1 [label="Toolmark Analysis" color="#FFE69C" fillcolor="#FFF9D4" shape=inputoutput style=filled]
+	N2 [label="Voice Recognition" color="#FFEB3B" fillcolor="#FFF9C4" shape=diamond style=filled]
+	N3 [label="Cyber Crime Investigation" color="#FFEB3B" fillcolor="#FFF9C4" shape=preparation style=filled]
+	N4 [label="Courtroom Presentation" color="#FFEB3B" fillcolor="#FFF9C4" shape=multipledocuments style=filled]
+	N5 [label="Vehicle Forensics" color="#FFE69C" fillcolor="#FFF9D4" shape=vnode_shape style=filled]
+	N6 [label="Evidence Preservation" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+	N7 [label="Legal Standards Compliance" color="#FFEB3B" fillcolor="#FFF9C4" shape=diamond style=filled]
+	N8 [label="Crime Database Search" color="#FFEB3B" fillcolor="#FFF9C4" shape=vnode_shape style=filled]
+	N9 [label="Forensic Interviewing" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="ballistics" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="compares" dir=forward]
+	N2 -> N3 [color="#FFEB3B" penwidth=1.5 style=solid label="collects" dir=forward]
+	N3 -> N4 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="fingerprints" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="trace_evidence" dir=forward]
+	N7 -> N8 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="trains" dir=forward]
+	N9 -> N5 [color="#000000" penwidth=1.5 style=solid label="preserves_evidence" dir=forward]
+	N1 -> N4 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_101.txt b/test/diagrams/scanned_easy/diagrams_101.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0c8d716d90ab69f538b835379d5c34494787ad4e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_101.txt
@@ -0,0 +1,11 @@
+<Courtroom Presentation, connectedTo, Vehicle Forensics>
+<Crime Database Search, trains, Forensic Interviewing>
+<Cyber Crime Investigation, connectedTo, Courtroom Presentation>
+<DNA Profiling, ballistics, Toolmark Analysis>
+<Evidence Preservation, trace_evidence, Legal Standards Compliance>
+<Forensic Interviewing, preserves_evidence, Vehicle Forensics>
+<Legal Standards Compliance, connectedTo, Crime Database Search>
+<Toolmark Analysis, compares, Voice Recognition>
+<Toolmark Analysis, connectedTo, Courtroom Presentation>
+<Vehicle Forensics, fingerprints, Evidence Preservation>
+<Voice Recognition, collects, Cyber Crime Investigation>
diff --git a/test/diagrams/scanned_easy/diagrams_102.dot b/test/diagrams/scanned_easy/diagrams_102.dot
new file mode 100644
index 0000000000000000000000000000000000000000..263601a061e1cf070cf7a0ce5ea2b845429fba21
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_102.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=TB
+	N0 [label="Early Warning Systems" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N1 [label="Behavioral Threat Assessment" color="#FFC085" fillcolor="#FFDAB9" shape=multipledocuments style=filled]
+	N2 [label="Insider Threat Programs" color="#FFC085" fillcolor="#FFDAB9" shape=document style=filled]
+	N3 [label="Terrorism Financing Interdiction" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	N4 [label="Target Hardening" color="#FFC085" fillcolor="#FFDAB9" shape=action style=filled]
+	N5 [label="Forensic Investigation of Attacks" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	N6 [label="Counter_Propaganda" color="#FFC085" fillcolor="#FFDAB9" shape=vnode_shape style=filled]
+	N7 [label="Legislation and Policy Development" color="#FFC085" fillcolor="#FFDAB9" shape=action style=filled]
+	N0 -> N1 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="responds" dir=forward]
+	N3 -> N4 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="de_radicalizes" dir=forward]
+	N1 -> N5 [color="#000000" penwidth=1.5 style=solid label="crisis_manages" dir=forward]
+	N7 -> N1 [color="#DCE775" penwidth=1.5 style=solid label="protects_critical_infra" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_103.dot b/test/diagrams/scanned_easy/diagrams_103.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b25d9da7e11bf3c11a9fb15010d6e458c55e7602
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_103.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=TB
+	N0 [label="Drone Surveillance" color="#9C27B0" fillcolor="#E1BEE7" shape=preparation style=filled]
+	N1 [label="Anomaly Detection" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N2 [label="Predictive Policing" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	N3 [label="Pattern Recognition" color="#FFEB3B" fillcolor="#FFF9C4" shape=rect style=filled]
+	N4 [label="Access Control Systems" color="#9C27B0" fillcolor="#E1BEE7" shape=inputoutput style=filled]
+	N5 [label="Border Surveillance" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+	N6 [label="Asset Tracking" color="#FFB2A5" fillcolor="#FFDCD6" shape=document style=filled]
+	N7 [label="Sensor Network Deployment" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N8 [label="Social Media Monitoring" color="#9C27B0" fillcolor="#E1BEE7" shape=document style=filled]
+	N9 [label="Physical Security Integration" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	N0 -> N1 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFEB3B" penwidth=1.5 style=dashed label="observes" dir=forward]
+	N3 -> N4 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="evidence_gathers" dir=forward]
+	N5 -> N6 [color="#FFEB3B" penwidth=1.5 style=dashed label="alerts" dir=forward]
+	N6 -> N7 [color="#9C27B0" penwidth=1.5 style=dashed label="data_stores" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#9C27B0" penwidth=1.5 style=dashed label="notifies" dir=forward]
+	N5 -> N9 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N1 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_105.dot b/test/diagrams/scanned_easy/diagrams_105.dot
new file mode 100644
index 0000000000000000000000000000000000000000..51a90e0a893db872e633b7cf9ce54400bdf584bc
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_105.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=RL
+	N0 [label="Captive Breeding Programs" color="#C0CA33" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N1 [label="Human_Wildlife Conflict Mitigation" color="#C0CA33" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N2 [label="Drone_based Monitoring" color="#F7BEE0" fillcolor="#FAEBF3" shape=database style=filled]
+	N3 [label="Sustainable Resource Management" color="#C0CA33" fillcolor="#F9FBE7" shape=database style=filled]
+	N4 [label="Ecosystem Services Valuation" color="#61CAC3" fillcolor="#C2E8E6" shape=preparation style=filled]
+	N5 [label="Rewilding Initiatives" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N6 [label="Population Dynamics Study" color="#C0CA33" fillcolor="#F9FBE7" shape=box style=filled]
+	N7 [label="Research and Development in Conservation" color="#C0CA33" fillcolor="#F9FBE7" shape=vnode_shape style=filled]
+	N8 [label="Anti_Poaching Operations" color="#C0CA33" fillcolor="#F9FBE7" shape=database style=filled]
+	N9 [label="Freshwater Conservation" color="#F7BEE0" fillcolor="#FAEBF3" shape=inputoutput style=filled]
+	N10 [label="Data Management for Conservation" color="#C0CA33" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	N0 -> N1 [color="#F7BEE0" penwidth=1.5 style=dashed label="species_saves" dir=forward]
+	N1 -> N2 [color="#C0CA33" penwidth=1.5 style=dashed label="funds_raises" dir=forward]
+	N2 -> N3 [color="#C0CA33" penwidth=1.5 style=solid label="rescues" dir=forward]
+	N3 -> N4 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#61CAC3" penwidth=1.5 style=solid label="manages" dir=forward]
+	N5 -> N6 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#C0CA33" penwidth=1.5 style=solid label="partners" dir=forward]
+	N7 -> N8 [color="#61CAC3" penwidth=1.5 style=dashed label="alerts" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#C0CA33" penwidth=1.5 style=dashed label="audits" dir=forward]
+	N3 -> N1 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_108.dot b/test/diagrams/scanned_easy/diagrams_108.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4d86370273f13c71939dafb4458c06265c2f5f52
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_108.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=TB
+	N0 [label="Proteomics" color="#5C6BC0" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	N1 [label="Synthetic Genomics" color="#FF5722" fillcolor="#FFCCBC" shape=rectangle style=filled]
+	N2 [label="Single_Cell Genomics" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	N3 [label="Gene Therapy Development" color="#5C6BC0" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	N4 [label="Computational Genomics" color="#FF5722" fillcolor="#FFCCBC" shape=diamond style=filled]
+	N5 [label="Structural Genomics" color="#FF5722" fillcolor="#FFCCBC" shape=rect style=filled]
+	N6 [label="CRISPR Gene Drive Research" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+	N7 [label="Gene Expression Profiling" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	N8 [label="Metabolomics" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N9 [label="Next_Generation Sequencing" color="#FF5722" fillcolor="#FFCCBC" shape=rectangle style=filled]
+	N10 [label="Genome Assembly" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N0 -> N1 [color="#FFDA4E" penwidth=1.5 style=solid label="maps" dir=forward]
+	N1 -> N2 [color="#FF5722" penwidth=1.5 style=dashed label="ethical_considers" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="modifies" dir=forward]
+	N3 -> N4 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#5C6BC0" penwidth=1.5 style=dashed label="complies" dir=forward]
+	N5 -> N6 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N10 [color="#000000" penwidth=1.5 style=solid label="commercializes" dir=forward]
+	N9 -> N2 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_108.txt b/test/diagrams/scanned_easy/diagrams_108.txt
new file mode 100644
index 0000000000000000000000000000000000000000..67f5d1bc6660e63460f3ea7f64d8b6f784347945
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_108.txt
@@ -0,0 +1,12 @@
+<CRISPR Gene Drive Research, connectedTo, Gene Expression Profiling>
+<Computational Genomics, commercializes, Genome Assembly>
+<Computational Genomics, complies, Structural Genomics>
+<Gene Expression Profiling, connectedTo, Metabolomics>
+<Gene Therapy Development, connectedTo, Computational Genomics>
+<Metabolomics, connectedTo, Next_Generation Sequencing>
+<Next_Generation Sequencing, connectedTo, Genome Assembly>
+<Next_Generation Sequencing, connectedTo, Single_Cell Genomics>
+<Proteomics, maps, Synthetic Genomics>
+<Single_Cell Genomics, modifies, Gene Therapy Development>
+<Structural Genomics, connectedTo, CRISPR Gene Drive Research>
+<Synthetic Genomics, ethical_considers, Single_Cell Genomics>
diff --git a/test/diagrams/scanned_easy/diagrams_109.dot b/test/diagrams/scanned_easy/diagrams_109.dot
new file mode 100644
index 0000000000000000000000000000000000000000..86cbf37a94fce615bd33cbb0f16ae0919525d9c3
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_109.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=TB
+	N0 [label="Voice Biometrics" color="#6EB76D" fillcolor="#E9F7E8" shape=vnode_shape style=filled]
+	N1 [label="Emotion Recognition from Voice" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+	N2 [label="Noise Reduction" color="#4DB6AC" fillcolor="#E0F2F1" shape=document style=filled]
+	N3 [label="Keyword Spotting" color="#CB9BE1" fillcolor="#F2E6F5" shape=inputoutput style=filled]
+	N4 [label="Multimodal Speech Processing" color="#6EB76D" fillcolor="#E9F7E8" shape=document style=filled]
+	N5 [label="Voice Activity Detection" color="#4DB6AC" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N6 [label="Speech Emotion Recognition" color="#6EB76D" fillcolor="#E9F7E8" shape=action style=filled]
+	N7 [label="Security Authentication" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N8 [label="Command and Control" color="#6EB76D" fillcolor="#E9F7E8" shape=database style=filled]
+	N9 [label="Automatic Speech Recognition" color="#6EB76D" fillcolor="#E9F7E8" shape=diamond style=filled]
+	N10 [label="Linguistic Analysis" color="#6EB76D" fillcolor="#E9F7E8" shape=preparation style=filled]
+	N0 -> N1 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#4DB6AC" penwidth=1.5 style=dashed label="licenses" dir=forward]
+	N2 -> N3 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#CB9BE1" penwidth=1.5 style=dashed label="personalizes" dir=forward]
+	N4 -> N5 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#CB9BE1" penwidth=1.5 style=dashed label="designs" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="updates" dir=forward]
+	N7 -> N8 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N0 [color="#4DB6AC" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N6 -> N4 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_109.txt b/test/diagrams/scanned_easy/diagrams_109.txt
new file mode 100644
index 0000000000000000000000000000000000000000..79eb1f43cbd75f7c65d1ca422f6bf2a91d81750a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_109.txt
@@ -0,0 +1,12 @@
+<Automatic Speech Recognition, connectedTo, Linguistic Analysis>
+<Command and Control, connectedTo, Automatic Speech Recognition>
+<Emotion Recognition from Voice, licenses, Noise Reduction>
+<Keyword Spotting, personalizes, Multimodal Speech Processing>
+<Multimodal Speech Processing, analyzes, Voice Biometrics>
+<Multimodal Speech Processing, connectedTo, Voice Activity Detection>
+<Noise Reduction, connectedTo, Keyword Spotting>
+<Security Authentication, connectedTo, Command and Control>
+<Speech Emotion Recognition, connectedTo, Multimodal Speech Processing>
+<Speech Emotion Recognition, updates, Security Authentication>
+<Voice Activity Detection, designs, Speech Emotion Recognition>
+<Voice Biometrics, connectedTo, Emotion Recognition from Voice>
diff --git a/test/diagrams/scanned_easy/diagrams_11.txt b/test/diagrams/scanned_easy/diagrams_11.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7a5e49147cbe42b01745a57ee086b0ee049b07b3
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_11.txt
@@ -0,0 +1,9 @@
+<Crop Monitoring, rotates, Yield Prediction>
+<Farm Machinery Operation, connectedTo, Crop Monitoring>
+<Farm Machinery Operation, connectedTo, Weather Tracking>
+<Farm Maintenance, connectedTo, Market Transportation>
+<Harvesting, innovates, Weed Removal>
+<Market Transportation, licenses, Harvesting>
+<Subsidy Application, connectedTo, Farm Maintenance>
+<Weed Removal, removes, Weather Tracking>
+<Yield Prediction, predicts, Subsidy Application>
diff --git a/test/diagrams/scanned_easy/diagrams_110.dot b/test/diagrams/scanned_easy/diagrams_110.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4a9bd12102cf2e21506ab0cb53d896847ddfa5ab
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_110.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=RL
+	N0 [label="Spam Detection" color="#A2D0FF" fillcolor="#E8F0FF" shape=vnode_shape style=filled]
+	N1 [label="Author Attribution" color="#A2D0FF" fillcolor="#E8F0FF" shape=preparation style=filled]
+	N2 [label="Data Cleaning for Text" color="#90A4AE" fillcolor="#ECEFF1" shape=hexagon style=filled]
+	N3 [label="Tokenization" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N4 [label="Annotation Tools" color="#90A4AE" fillcolor="#ECEFF1" shape=vnode_shape style=filled]
+	N5 [label="Regular Expressions for Text" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+	N6 [label="Customer Feedback Analysis" color="#AF56A6" fillcolor="#DDCEDD" shape=rectangle style=filled]
+	N7 [label="Text Clustering" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	N8 [label="Document Summarization" color="#AF56A6" fillcolor="#DDCEDD" shape=action style=filled]
+	N9 [label="Concept Extraction" color="#AF56A6" fillcolor="#DDCEDD" shape=multipledocuments style=filled]
+	N10 [label="Corpus Creation" color="#A2D0FF" fillcolor="#E8F0FF" shape=database style=filled]
+	N11 [label="Keyword Extraction" color="#AF56A6" fillcolor="#DDCEDD" shape=diamond style=filled]
+	N0 -> N1 [color="#AF56A6" penwidth=1.5 style=solid label="relationships" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="keywords" dir=forward]
+	N2 -> N3 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="visualizes" dir=forward]
+	N8 -> N9 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid label="reports" dir=forward]
+	N6 -> N4 [color="#AF56A6" penwidth=1.5 style=dashed label="blocks" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_110.txt b/test/diagrams/scanned_easy/diagrams_110.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3da12fdcd2a98fc85e1873214db4a109f757e6df
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_110.txt
@@ -0,0 +1,12 @@
+<Annotation Tools, connectedTo, Regular Expressions for Text>
+<Author Attribution, keywords, Data Cleaning for Text>
+<Concept Extraction, connectedTo, Corpus Creation>
+<Corpus Creation, reports, Keyword Extraction>
+<Customer Feedback Analysis, blocks, Annotation Tools>
+<Customer Feedback Analysis, connectedTo, Text Clustering>
+<Data Cleaning for Text, connectedTo, Tokenization>
+<Document Summarization, connectedTo, Concept Extraction>
+<Regular Expressions for Text, connectedTo, Customer Feedback Analysis>
+<Spam Detection, relationships, Author Attribution>
+<Text Clustering, visualizes, Document Summarization>
+<Tokenization, connectedTo, Annotation Tools>
diff --git a/test/diagrams/scanned_easy/diagrams_111.dot b/test/diagrams/scanned_easy/diagrams_111.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9f035d4ed0f72a9a6d0c95b2f745d77625a55916
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_111.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=RL
+	N0 [label="Asset Optimization" color="#00BCD4" fillcolor="#E0F7FA" shape=rectangle style=filled]
+	N1 [label="Condition Monitoring" color="#00BCD4" fillcolor="#E0F7FA" shape=predefinedprocess style=filled]
+	N2 [label="Building Information Modeling Integration" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N3 [label="Simulation Platform Development" color="#FFC085" fillcolor="#FFDAB9" shape=action style=filled]
+	N4 [label="Edge Computing for Twins" color="#FFC085" fillcolor="#FFDAB9" shape=vnode_shape style=filled]
+	N5 [label="Operational Planning" color="#00BCD4" fillcolor="#E0F7FA" shape=rect style=filled]
+	N6 [label="Predictive Maintenance" color="#BA68C8" fillcolor="#F3E5F5" shape=rect style=filled]
+	N7 [label="Data Security for Digital Twins" color="#00BCD4" fillcolor="#E0F7FA" shape=multipledocuments style=filled]
+	N8 [label="Aerospace Digital Twins" color="#BA68C8" fillcolor="#F3E5F5" shape=database style=filled]
+	N9 [label="Lifecycle Management" color="#BA68C8" fillcolor="#F3E5F5" shape=diamond style=filled]
+	N0 -> N1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFC085" penwidth=1.5 style=dashed label="failures_predicts" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="systems_optimizes" dir=forward]
+	N3 -> N4 [color="#BA68C8" penwidth=1.5 style=dashed label="decision_supports" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="environments_monitors" dir=forward]
+	N5 -> N6 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#BA68C8" penwidth=1.5 style=solid label="risks_mitigates" dir=forward]
+	N7 -> N8 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="validates" dir=forward]
+	N5 -> N2 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_112.dot b/test/diagrams/scanned_easy/diagrams_112.dot
new file mode 100644
index 0000000000000000000000000000000000000000..998f8cf8fe607e8be77563b56a2cea02c40de377
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_112.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=BT
+	N0 [label="Document Processing Automation" color="#FFF9AE" fillcolor="#FFFCE6" shape=predefinedprocess style=filled]
+	N1 [label="Report Generation Automation" color="#FFCC7A" fillcolor="#FFF6D9" shape=document style=filled]
+	N2 [label="Return on Investment Calculation" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N3 [label="Security for Automation Bots" color="#FFCC7A" fillcolor="#FFF6D9" shape=predefinedprocess style=filled]
+	N4 [label="Automated Testing" color="#FFF9AE" fillcolor="#FFFCE6" shape=vnode_shape style=filled]
+	N5 [label="IT Operations Automation" color="#64B5F6" fillcolor="#E3F2FD" shape=rect style=filled]
+	N6 [label="Change Management for Automation" color="#FFCC7A" fillcolor="#FFF6D9" shape=inputoutput style=filled]
+	N7 [label="Task Automation" color="#FFCC7A" fillcolor="#FFF6D9" shape=rect style=filled]
+	N8 [label="Intelligent Automation" color="#FFF9AE" fillcolor="#FFFCE6" shape=multipledocuments style=filled]
+	N9 [label="Hyperautomation" color="#FFCC7A" fillcolor="#FFF6D9" shape=rectangle style=filled]
+	N10 [label="Supply Chain Automation" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+	N0 -> N1 [color="#64B5F6" penwidth=1.5 style=dashed label="enhances_compliance" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="configures_rules" dir=forward]
+	N3 -> N4 [color="#64B5F6" penwidth=1.5 style=dashed label="errors_detects" dir=forward]
+	N4 -> N5 [color="#FFCC7A" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N5 -> N6 [color="#FFCC7A" penwidth=1.5 style=dashed label="tasks_handles" dir=forward]
+	N6 -> N7 [color="#FFF9AE" penwidth=1.5 style=dashed label="RPA_implements" dir=forward]
+	N7 -> N8 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFCC7A" penwidth=1.5 style=solid label="automates" dir=forward]
+	N9 -> N10 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N2 [color="#FFF9AE" penwidth=1.5 style=dashed label="streamlines" dir=forward]
+	N2 -> N6 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_112.txt b/test/diagrams/scanned_easy/diagrams_112.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f25d0804d58378345e35b1fe33c316804905f22a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_112.txt
@@ -0,0 +1,12 @@
+<Automated Testing, analyzes, IT Operations Automation>
+<Change Management for Automation, RPA_implements, Task Automation>
+<Document Processing Automation, enhances_compliance, Report Generation Automation>
+<Hyperautomation, connectedTo, Supply Chain Automation>
+<IT Operations Automation, tasks_handles, Change Management for Automation>
+<Intelligent Automation, automates, Hyperautomation>
+<Report Generation Automation, connectedTo, Return on Investment Calculation>
+<Return on Investment Calculation, configures_rules, Security for Automation Bots>
+<Return on Investment Calculation, connectedTo, Change Management for Automation>
+<Security for Automation Bots, errors_detects, Automated Testing>
+<Task Automation, connectedTo, Intelligent Automation>
+<Task Automation, streamlines, Return on Investment Calculation>
diff --git a/test/diagrams/scanned_easy/diagrams_113.dot b/test/diagrams/scanned_easy/diagrams_113.dot
new file mode 100644
index 0000000000000000000000000000000000000000..007b958b25a58c893c73e7c471827f9ac130928a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_113.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Quality Data Analysis" color="#FF9800" fillcolor="#FFE0B2" shape=document style=filled]
+	N1 [label="Food Safety Quality Control" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+	N2 [label="Inspection Procedures" color="#E0E0E0" fillcolor="#EBEBEB" shape=vnode_shape style=filled]
+	N3 [label="Supplier Quality Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=rectangle style=filled]
+	N4 [label="ISO Certification" color="#E0E0E0" fillcolor="#EBEBEB" shape=diamond style=filled]
+	N5 [label="Non_Destructive Testing" color="#E0E0E0" fillcolor="#EBEBEB" shape=rectangle style=filled]
+	N6 [label="Statistical Process Control" color="#FF9800" fillcolor="#FFE0B2" shape=database style=filled]
+	N7 [label="Supplier Audits" color="#D3EB9F" fillcolor="#F8FDD3" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#D3EB9F" penwidth=1.5 style=dashed label="non_conformances_identifies" dir=forward]
+	N1 -> N2 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FF9800" penwidth=1.5 style=dashed label="complies" dir=forward]
+	N3 -> N4 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#E0E0E0" penwidth=1.5 style=solid label="customer_satisfaction_ensures" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N3 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_113.txt b/test/diagrams/scanned_easy/diagrams_113.txt
new file mode 100644
index 0000000000000000000000000000000000000000..76d24233d895f5131aafd21cea8a8e51be3419b1
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_113.txt
@@ -0,0 +1,8 @@
+<Food Safety Quality Control, connectedTo, Inspection Procedures>
+<ISO Certification, connectedTo, Non_Destructive Testing>
+<Inspection Procedures, complies, Supplier Quality Management>
+<Non_Destructive Testing, customer_satisfaction_ensures, Statistical Process Control>
+<Quality Data Analysis, non_conformances_identifies, Food Safety Quality Control>
+<Statistical Process Control, connectedTo, Supplier Audits>
+<Supplier Audits, connectedTo, Supplier Quality Management>
+<Supplier Quality Management, connectedTo, ISO Certification>
diff --git a/test/diagrams/scanned_easy/diagrams_12.dot b/test/diagrams/scanned_easy/diagrams_12.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ab8768929023585c0fb0ed271a860b28a47253b6
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_12.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=BT
+	N0 [label="Group Tour Coordination" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+	N1 [label="Photo Capture" color="#03A9F4" fillcolor="#B3E5FC" shape=diamond style=filled]
+	N2 [label="Flight Booking" color="#BDAFA8" fillcolor="#E4E0DF" shape=diamond style=filled]
+	N3 [label="Tourist Information Desk" color="#03A9F4" fillcolor="#B3E5FC" shape=parallelogram style=filled]
+	N4 [label="Airport Transfer" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N5 [label="Tour Guide Assignment" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	N6 [label="Concert Ticketing" color="#A2D0FF" fillcolor="#E8F0FF" shape=predefinedprocess style=filled]
+	N7 [label="Visa Application" color="#BDAFA8" fillcolor="#E4E0DF" shape=hexagon style=filled]
+	N8 [label="Travel Insurance" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+	N0 -> N1 [color="#BDAFA8" penwidth=1.5 style=dashed label="assigns" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#03A9F4" penwidth=1.5 style=solid label="entertains" dir=forward]
+	N4 -> N5 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="reserves" dir=forward]
+	N6 -> N7 [color="#03A9F4" penwidth=1.5 style=solid label="reviews" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="captures" dir=forward]
+	N2 -> N0 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N4 -> N2 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_12.txt b/test/diagrams/scanned_easy/diagrams_12.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0b8adc9a5d008fee0bb81f82cf89ff8059b25e82
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_12.txt
@@ -0,0 +1,10 @@
+<Airport Transfer, connectedTo, Flight Booking>
+<Airport Transfer, connectedTo, Tour Guide Assignment>
+<Concert Ticketing, reviews, Visa Application>
+<Flight Booking, connectedTo, Group Tour Coordination>
+<Flight Booking, connectedTo, Tourist Information Desk>
+<Group Tour Coordination, assigns, Photo Capture>
+<Photo Capture, connectedTo, Flight Booking>
+<Tour Guide Assignment, reserves, Concert Ticketing>
+<Tourist Information Desk, entertains, Airport Transfer>
+<Visa Application, captures, Travel Insurance>
diff --git a/test/diagrams/scanned_easy/diagrams_121.txt b/test/diagrams/scanned_easy/diagrams_121.txt
new file mode 100644
index 0000000000000000000000000000000000000000..36e444ac8c35e1498f74e31d2660d85ba73d6f45
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_121.txt
@@ -0,0 +1,15 @@
+<Climate Change Impact Study, disseminates, Seasonal Outlook Preparation>
+<Climate Data Archiving, connectedTo, Public Weather Briefing>
+<Climate Modeling, connectedTo, Precipitation Measurement>
+<Lightning Detection, connectedTo, Wind Speed and Direction>
+<Meteorological Instrument Calibration, connectedTo, Radar Imaging>
+<Ocean_Atmosphere Interaction Study, connectedTo, Climate Modeling>
+<Precipitation Measurement, connectedTo, Climate Data Archiving>
+<Radar Imaging, connectedTo, Climate Change Impact Study>
+<Seasonal Outlook Preparation, charts, Climate Data Archiving>
+<Seasonal Outlook Preparation, connectedTo, Climate Data Archiving>
+<Seasonal Outlook Preparation, connectedTo, Ocean_Atmosphere Interaction Study>
+<Seasonal Outlook Preparation, connectedTo, Precipitation Measurement>
+<Seasonal Outlook Preparation, detects, Precipitation Measurement>
+<Wind Speed and Direction, connectedTo, Climate Change Impact Study>
+<Wind Speed and Direction, warns, Meteorological Instrument Calibration>
diff --git a/test/diagrams/scanned_easy/diagrams_123.dot b/test/diagrams/scanned_easy/diagrams_123.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1862907406072be345b946c33813ee14031b8cfc
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_123.dot
@@ -0,0 +1,39 @@
+digraph {
+	rankdir=BT
+	N0 [label="Climate Change Impact Study" color="#CDDC39" fillcolor="#E6EE9C" shape=rectangle style=filled]
+	N1 [label="Snowfall Measurement" color="#A188D0" fillcolor="#DACBE3" shape=rectangle style=filled]
+	N2 [label="Lightning Detection" color="#CDDC39" fillcolor="#E6EE9C" shape=preparation style=filled]
+	N3 [label="Seasonal Outlook Preparation" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	N4 [label="Public Weather Briefing" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N5 [label="Atmospheric Sounding" color="#A188D0" fillcolor="#DACBE3" shape=predefinedprocess style=filled]
+	N6 [label="Hurricane Trajectory Modeling" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N7 [label="Upper Air Chart Analysis" color="#CDDC39" fillcolor="#E6EE9C" shape=diamond style=filled]
+	N8 [label="Pollution Dispersion Modeling" color="#DCE775" fillcolor="#F9FBE7" shape=action style=filled]
+	M0 [label="" color="#A188D0" fillcolor="#DACBE3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Aviation Weather Briefing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Aviation Weather Briefing"
+		nest0_0 [label="Synoptic Chart Analysis" color="#A188D0" fillcolor="#DACBE3" shape=action style=filled]
+		nest0_1 [label="Tornado Watch or Warning" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+		nest0_2 [label="Nowcasting" color="#CDDC39" fillcolor="#E6EE9C" shape=database style=filled]
+		nest0_3 [label="Mesoscale Meteorology" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#CDDC39" penwidth=1.5 style=solid label="archives" dir=forward]
+	N2 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A188D0" penwidth=1.5 style=solid label="visualizes" dir=forward]
+	N6 -> N7 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#CDDC39" penwidth=1.5 style=dashed label="interprets" dir=forward]
+	N1 -> nest0_0 [color="#CDDC39" penwidth=1.5 style=dashed label="integrates" dir=forward]
+	nest0_3 -> N6 [color="#CDDC39" penwidth=1.5 style=dashed label="calculates" dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_123.txt b/test/diagrams/scanned_easy/diagrams_123.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ff2c91ed5a6d7b2e7684fbc0a0102b4e02ecd071
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_123.txt
@@ -0,0 +1,16 @@
+<Atmospheric Sounding, visualizes, Hurricane Trajectory Modeling>
+<Climate Change Impact Study, connectedTo, Public Weather Briefing>
+<Climate Change Impact Study, connectedTo, Snowfall Measurement>
+<Hurricane Trajectory Modeling, connectedTo, Upper Air Chart Analysis>
+<Lightning Detection, connectedTo, Public Weather Briefing>
+<Lightning Detection, connectedTo, Seasonal Outlook Preparation>
+<Mesoscale Meteorology, calculates, Hurricane Trajectory Modeling>
+<Nowcasting, interprets, Mesoscale Meteorology>
+<Public Weather Briefing, connectedTo, Atmospheric Sounding>
+<Seasonal Outlook Preparation, connectedTo, Public Weather Briefing>
+<Snowfall Measurement, archives, Lightning Detection>
+<Snowfall Measurement, connectedTo, Public Weather Briefing>
+<Snowfall Measurement, integrates, Synoptic Chart Analysis>
+<Synoptic Chart Analysis, connectedTo, Tornado Watch or Warning>
+<Tornado Watch or Warning, connectedTo, Nowcasting>
+<Upper Air Chart Analysis, connectedTo, Pollution Dispersion Modeling>
diff --git a/test/diagrams/scanned_easy/diagrams_124.dot b/test/diagrams/scanned_easy/diagrams_124.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2ca84999ce018f9ed828d6965006f2045b5c92e3
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_124.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=BT
+	N0 [label="Community Recycling Programs" color="#8C9EFF" fillcolor="#D3D7EB" shape=box style=filled]
+	N1 [label="Waste Collection" color="#DCE775" fillcolor="#FCFCE7" shape=database style=filled]
+	N2 [label="Waste Characterization Study" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N3 [label="Material Recovery Facility Operation" color="#8C9EFF" fillcolor="#D3D7EB" shape=document style=filled]
+	N4 [label="Waste Reduction Planning" color="#DCE775" fillcolor="#FCFCE7" shape=diamond style=filled]
+	N5 [label="Waste Audit" color="#DCE775" fillcolor="#FCFCE7" shape=vnode_shape style=filled]
+	N6 [label="Illegal Dumping Monitoring" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+	N7 [label="Public Education on Waste" color="#8C9EFF" fillcolor="#D3D7EB" shape=action style=filled]
+	N8 [label="Landfill Operation" color="#8C9EFF" fillcolor="#D3D7EB" shape=rect style=filled]
+	N9 [label="Organics Collection" color="#DCE775" fillcolor="#FCFCE7" shape=predefinedprocess style=filled]
+	N10 [label="Extended Producer Responsibility" color="#388E3C" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N11 [label="Transfer Station Management" color="#DCE775" fillcolor="#FCFCE7" shape=rectangle style=filled]
+	S0 [label="" color="#8C9EFF" fillcolor="#D3D7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#DCE775" fillcolor="#FCFCE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Biomedical Waste Handling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Biomedical Waste Handling"
+		nest0_0 [label="Electronic Waste Recycling" color="#8C9EFF" fillcolor="#D3D7EB" shape=hexagon style=filled]
+		nest0_1 [label="Hazardous Waste Disposal" color="#388E3C" fillcolor="#C8E6C9" shape=multipledocuments style=filled]
+		nest0_2 [label="Zero Waste Initiatives" color="#388E3C" fillcolor="#C8E6C9" shape=database style=filled]
+	}
+	N0 -> N1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#8C9EFF" penwidth=1.5 style=dashed label="minimizes" dir=forward]
+	N5 -> N6 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#DCE775" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N8 -> N9 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N10 [color="#000000" penwidth=1.5 style=dashed label="disposes" dir=forward]
+	N0 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#DCE775" penwidth=1.5 style=dashed label="inspects" dir=forward]
+	N2 -> M0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#388E3C" penwidth=1.5 style=solid label="treats" dir=forward]
+	M0 -> N11 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_124.txt b/test/diagrams/scanned_easy/diagrams_124.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9b7720d36d4943c8caf54eadc50200d511da5d26
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_124.txt
@@ -0,0 +1,19 @@
+<Community Recycling Programs, connectedTo, Material Recovery Facility Operation>
+<Community Recycling Programs, connectedTo, Waste Collection>
+<Community Recycling Programs, inspects, Illegal Dumping Monitoring>
+<Electronic Waste Recycling, connectedTo, Hazardous Waste Disposal>
+<Extended Producer Responsibility, connectedTo, Transfer Station Management>
+<Hazardous Waste Disposal, connectedTo, Zero Waste Initiatives>
+<Illegal Dumping Monitoring, connectedTo, Public Education on Waste>
+<Landfill Operation, connectedTo, Organics Collection>
+<Material Recovery Facility Operation, connectedTo, Waste Reduction Planning>
+<Organics Collection, connectedTo, Electronic Waste Recycling>
+<Organics Collection, connectedTo, Extended Producer Responsibility>
+<Public Education on Waste, reports, Landfill Operation>
+<Waste Audit, connectedTo, Illegal Dumping Monitoring>
+<Waste Characterization Study, connectedTo, Material Recovery Facility Operation>
+<Waste Characterization Study, connectedTo, Transfer Station Management>
+<Waste Collection, connectedTo, Waste Characterization Study>
+<Waste Collection, treats, Transfer Station Management>
+<Waste Reduction Planning, minimizes, Waste Audit>
+<Zero Waste Initiatives, disposes, Extended Producer Responsibility>
diff --git a/test/diagrams/scanned_easy/diagrams_126.txt b/test/diagrams/scanned_easy/diagrams_126.txt
new file mode 100644
index 0000000000000000000000000000000000000000..262d40b99491444fe46218747a360993e5b8b338
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_126.txt
@@ -0,0 +1,14 @@
+<Construction and Demolition Waste Management, connectedTo, Waste Characterization Study>
+<Hazardous Waste Disposal, minimizes, Smart Waste Bins>
+<Industrial Waste Management, connectedTo, Resource Recovery>
+<Industrial Waste Management, connectedTo, Smart Waste Bins>
+<Industrial Waste Management, connectedTo, Waste Collection>
+<Industrial Waste Management, connectedTo, Waste Reduction Planning>
+<Industrial Waste Management, plans, Construction and Demolition Waste Management>
+<Leachate Treatment, connectedTo, Industrial Waste Management>
+<Leachate Treatment, incinerates, Waste Collection>
+<Resource Recovery, connectedTo, Smart Waste Bins>
+<Waste Characterization Study, connectedTo, Hazardous Waste Disposal>
+<Waste Collection, innovates, Waste Sorting>
+<Waste Reduction Planning, connectedTo, Waste Collection>
+<Waste Sorting, connectedTo, Resource Recovery>
diff --git a/test/diagrams/scanned_easy/diagrams_127.dot b/test/diagrams/scanned_easy/diagrams_127.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5412025bf5d7f6d1efda3a18b4dc496c3f58724c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_127.dot
@@ -0,0 +1,52 @@
+digraph {
+	rankdir=RL
+	N0 [label="Industrial Water Use Optimization" color="#9FA9E1" fillcolor="#D6D9F0" shape=vnode_shape style=filled]
+	N1 [label="Hydroelectric Power Generation" color="#607D8B" fillcolor="#CFD8DC" shape=rect style=filled]
+	N2 [label="Aquifer Recharge" color="#9FA9E1" fillcolor="#D6D9F0" shape=diamond style=filled]
+	N3 [label="Sewer System Inspection" color="#9FA9E1" fillcolor="#D6D9F0" shape=vnode_shape style=filled]
+	N4 [label="Transboundary Water Management" color="#42A5F5" fillcolor="#F1F8FF" shape=rect style=filled]
+	N5 [label="Water Conservation Planning" color="#9FA9E1" fillcolor="#D6D9F0" shape=database style=filled]
+	N6 [label="Piping Network Repair" color="#607D8B" fillcolor="#CFD8DC" shape=database style=filled]
+	N7 [label="Billing and Revenue Management" color="#9FA9E1" fillcolor="#D6D9F0" shape=preparation style=filled]
+	N8 [label="Wastewater Collection" color="#9FA9E1" fillcolor="#D6D9F0" shape=rectangle style=filled]
+	N9 [label="Water Source Identification" color="#607D8B" fillcolor="#CFD8DC" shape=diamond style=filled]
+	N10 [label="Drought Management" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	N11 [label="Water Infrastructure Maintenance" color="#42A5F5" fillcolor="#F1F8FF" shape=preparation style=filled]
+	N12 [label="Desalination" color="#42A5F5" fillcolor="#F1F8FF" shape=vnode_shape style=filled]
+	N13 [label="Irrigation Management" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+	S0 [label="" color="#42A5F5" fillcolor="#F1F8FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#42A5F5" fillcolor="#F1F8FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Drinking Water Standards Compliance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Drinking Water Standards Compliance"
+		nest0_0 [label="Groundwater Management" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+		nest0_1 [label="Agricultural Water Use Efficiency" color="#42A5F5" fillcolor="#F1F8FF" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#607D8B" penwidth=1.5 style=dashed label="plans" dir=forward]
+	N1 -> N2 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#42A5F5" penwidth=1.5 style=dashed label="mitigates" dir=forward]
+	N12 -> N13 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#607D8B" penwidth=1.5 style=solid label="assesses" dir=forward]
+	N11 -> nest0_0 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N5 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#9FA9E1" penwidth=1.5 style=dashed label="predicts" dir=forward]
+	S0 -> N11 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S1 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#607D8B" penwidth=1.5 style=dashed label="audits" dir=forward]
+	S1 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#9FA9E1" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed label="models" dir=forward]
+	M0 -> N7 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_129.txt b/test/diagrams/scanned_easy/diagrams_129.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fac82170ff7e751d6257ec34048b9e41d072e34f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_129.txt
@@ -0,0 +1,16 @@
+<Agricultural Water Use Efficiency, connectedTo, Greywater Recycling>
+<Agricultural Water Use Efficiency, connectedTo, Water Treatment>
+<Ecosystem Protection, designs, Water Treatment>
+<Environmental Flow Assessment, permits, Wastewater Treatment>
+<Greywater Recycling, connectedTo, Water Treatment>
+<Greywater Recycling, warns, Ecosystem Protection>
+<Hydroelectric Power Generation, connectedTo, Sewer System Inspection>
+<Public Awareness Campaigns, connectedTo, Agricultural Water Use Efficiency>
+<Sewer System Inspection, connectedTo, Smart Water Networks>
+<Sewer System Inspection, optimizes, Environmental Flow Assessment>
+<Sewer System Inspection, treats, Hydrological Modeling>
+<Smart Water Networks, connectedTo, Hydrological Modeling>
+<Smart Water Networks, connectedTo, Water Resource Planning>
+<Wastewater Treatment, connectedTo, Smart Water Networks>
+<Water Resource Planning, connectedTo, Hydroelectric Power Generation>
+<Water Treatment, connectedTo, Sewer System Inspection>
diff --git a/test/diagrams/scanned_easy/diagrams_13.txt b/test/diagrams/scanned_easy/diagrams_13.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8685c03ef9bda94f5d3673b98ab47a99f2aff689
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_13.txt
@@ -0,0 +1,12 @@
+<Agent Assignment, connectedTo, Contract Review>
+<Building Permit Application, connectedTo, Investment Property Analysis>
+<Buyer Inquiry, sells, Tenant Screening>
+<Commission Distribution, promotes, Building Permit Application>
+<Contract Review, connectedTo, Buyer Inquiry>
+<Contract Review, connectedTo, Market Trend Analysis>
+<HOA Management, finances, Agent Assignment>
+<Market Trend Analysis, inspects, HOA Management>
+<Property Insurance, verifies, Market Trend Analysis>
+<Tax Assessment, connectedTo, Title Check>
+<Tenant Screening, approves, Commission Distribution>
+<Title Check, connectedTo, Property Insurance>
diff --git a/test/diagrams/scanned_easy/diagrams_130.dot b/test/diagrams/scanned_easy/diagrams_130.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f075f2385fb96cdb43651879b46272a3307f239c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_130.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=LR
+	N0 [label="Recycling Policy Advocacy" color="#A2D0FF" fillcolor="#E8F0FF" shape=action style=filled]
+	N1 [label="Chemical Recycling" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+	N2 [label="Waste Stream Analysis" color="#FFE470" fillcolor="#FFFAE0" shape=inputoutput style=filled]
+	N3 [label="Recycling Infrastructure Development" color="#A2D0FF" fillcolor="#E8F0FF" shape=database style=filled]
+	N4 [label="Commercial Recycling Solutions" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	N5 [label="Material Purity Testing" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	N6 [label="Electronic Waste Recycling" color="#FFE470" fillcolor="#FFFAE0" shape=multipledocuments style=filled]
+	N7 [label="Recycling Market Development" color="#FFE470" fillcolor="#FFFAE0" shape=multipledocuments style=filled]
+	S0 [label="" color="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFE470" fillcolor="#FFFAE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Material Collection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Material Collection"
+		nest0_0 [label="Contamination Reduction" color="#FFE470" fillcolor="#FFFAE0" shape=action style=filled]
+		nest0_1 [label="Life Cycle Assessment" color="#FFE470" fillcolor="#FFFAE0" shape=preparation style=filled]
+		nest0_2 [label="Glass Recycling" color="#FFE470" fillcolor="#FFFAE0" shape=inputoutput style=filled]
+		nest0_3 [label="Recycling Data Tracking" color="#E57373" fillcolor="#FFEBEE" shape=database style=filled]
+	}
+	N0 -> N1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#E57373" penwidth=1.5 style=solid label="shreds" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="melts" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#E57373" penwidth=1.5 style=dashed label="verifies" dir=forward]
+	nest0_3 -> N5 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N2 -> S1 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#E57373" penwidth=1.5 style=dashed label="grades" dir=forward]
+	S1 -> N7 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#E57373" penwidth=1.5 style=solid label="assesses" dir=forward]
+	M0 -> N3 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_132.txt b/test/diagrams/scanned_easy/diagrams_132.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e5ffeff0dd85841c37d1844a75a7655154c8026c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_132.txt
@@ -0,0 +1,20 @@
+<Advanced Sorting Technologies, connectedTo, Material Purity Testing>
+<Battery Recycling, connectedTo, Contamination Reduction>
+<Circular Economy Implementation, connectedTo, Plastic Recycling>
+<Contamination Reduction, connectedTo, Material Collection>
+<Electronic Waste Recycling, connectedTo, Paper Recycling>
+<Material Collection, connectedTo, Electronic Waste Recycling>
+<Material Collection, connectedTo, Recycling Education>
+<Material Purity Testing, connectedTo, Circular Economy Implementation>
+<Mechanical Recycling, certifies, Electronic Waste Recycling>
+<Mechanical Recycling, connectedTo, Composting Organic Waste>
+<Mechanical Recycling, treats, Plastic Recycling>
+<Paper Recycling, sorts, Plastic Recycling>
+<Plastic Recycling, manufactures, Composting Organic Waste>
+<Product Design for Recyclability, connectedTo, Textile Recycling>
+<Recycling Education, connectedTo, Waste Audit for Recycling>
+<Recycling Education, shreds, Mechanical Recycling>
+<Textile Recycling, connectedTo, Circular Economy Implementation>
+<Textile Recycling, processes, Battery Recycling>
+<Waste Audit for Recycling, connectedTo, Advanced Sorting Technologies>
+<Waste Audit for Recycling, connectedTo, Product Design for Recyclability>
diff --git a/test/diagrams/scanned_easy/diagrams_135.dot b/test/diagrams/scanned_easy/diagrams_135.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7e2007f0cb7740b1ceff9ab04195456bb3af6ff7
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_135.dot
@@ -0,0 +1,45 @@
+digraph {
+	rankdir=RL
+	N0 [label="Erosion Control" color="#90A4AE" fillcolor="#ECEFF1" shape=action style=filled]
+	N1 [label="Indigenous Forestry Practices" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	N2 [label="Forest Certification" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N3 [label="Wildlife Habitat Management" color="#E91E63" fillcolor="#F8BBD0" shape=rect style=filled]
+	N4 [label="Tree Nursery Management" color="#E91E63" fillcolor="#F8BBD0" shape=rect style=filled]
+	N5 [label="Watershed Protection" color="#90A4AE" fillcolor="#ECEFF1" shape=hexagon style=filled]
+	N6 [label="Soil Conservation" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N7 [label="Drone Surveying for Forests" color="#90A4AE" fillcolor="#ECEFF1" shape=predefinedprocess style=filled]
+	S0 [label="" color="#61CAC3" fillcolor="#C2E8E6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#90A4AE" fillcolor="#ECEFF1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Wood Product Manufacturing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Wood Product Manufacturing"
+		nest0_0 [label="Silviculture" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+		nest0_1 [label="Urban Forestry Management" color="#61CAC3" fillcolor="#C2E8E6" shape=vnode_shape style=filled]
+		nest0_2 [label="Sustainable Forest Management" color="#E91E63" fillcolor="#F8BBD0" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#E91E63" penwidth=1.5 style=solid label="sustains" dir=forward]
+	N2 -> N3 [color="#90A4AE" penwidth=1.5 style=dashed label="transports" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#E91E63" penwidth=1.5 style=dashed label="researches" dir=forward]
+	N5 -> N6 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#E91E63" penwidth=1.5 style=solid label="treats" dir=forward]
+	N2 -> nest0_0 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N3 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N3 [color="#E91E63" penwidth=1.5 style=solid label="controls" dir=forward]
+	S1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid label="maps" dir=forward]
+	M0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_136.dot b/test/diagrams/scanned_easy/diagrams_136.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a0c84734cfb923036c8ca7824ebf80a0c7e9c879
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_136.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=BT
+	N0 [label="Herd Health Programs" color="#FBC02D" fillcolor="#FFFDE7" shape=database style=filled]
+	N1 [label="Imaging Services" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N2 [label="Public Health Vet Services" color="#FFC085" fillcolor="#FFDAB9" shape=rect style=filled]
+	N3 [label="Equine Care" color="#9C27B0" fillcolor="#E1BEE7" shape=vnode_shape style=filled]
+	N4 [label="Livestock Disease Prevention" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N5 [label="Allergy Testing" color="#9C27B0" fillcolor="#E1BEE7" shape=inputoutput style=filled]
+	N6 [label="Diagnosis" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N7 [label="Pre_surgical Assessment" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N8 [label="Farm Animal Health Management" color="#FBC02D" fillcolor="#FFFDE7" shape=diamond style=filled]
+	N9 [label="Veterinary Pathology" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N10 [label="Nutritional Counseling" color="#FBC02D" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	S0 [label="" color="#9C27B0" fillcolor="#E1BEE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FBC02D" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#9C27B0" fillcolor="#E1BEE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Pharmacy Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Pharmacy Management"
+		nest0_0 [label="Genetic Counseling for Animals" color="#FBC02D" fillcolor="#FFFDE7" shape=rectangle style=filled]
+		nest0_1 [label="Surgery" color="#FBC02D" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFC085" penwidth=1.5 style=solid label="reproduces" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFC085" penwidth=1.5 style=dashed label="vaccinates" dir=forward]
+	N5 -> N6 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#9C27B0" penwidth=1.5 style=dashed label="admits" dir=forward]
+	nest0_0 -> nest0_1 [color="#9C27B0" penwidth=1.5 style=dashed label="orders" dir=forward]
+	N2 -> nest0_0 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N6 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FBC02D" penwidth=1.5 style=solid label="euthanizes" dir=forward]
+	M0 -> N3 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	M1 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_137.dot b/test/diagrams/scanned_easy/diagrams_137.dot
new file mode 100644
index 0000000000000000000000000000000000000000..91f4dcd1b1fa3a3d70d51321f31c1892db1426a0
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_137.dot
@@ -0,0 +1,38 @@
+digraph {
+	rankdir=RL
+	N0 [label="Laboratory Testing" color="#8C9EFF" fillcolor="#D3D7EB" shape=inputoutput style=filled]
+	N1 [label="Veterinary Pathology" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+	N2 [label="Behavioral Counseling" color="#BDBDBD" fillcolor="#F5F5F5" shape=rect style=filled]
+	N3 [label="Livestock Disease Prevention" color="#BDBDBD" fillcolor="#F5F5F5" shape=database style=filled]
+	N4 [label="Genetic Counseling for Animals" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+	N5 [label="Surgery" color="#8C9EFF" fillcolor="#D3D7EB" shape=diamond style=filled]
+	N6 [label="Euthanasia Services" color="#FFB2A5" fillcolor="#FFDCD6" shape=multipledocuments style=filled]
+	M0 [label="" color="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Microchipping {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Microchipping"
+		nest0_0 [label="Pharmacy Management" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+		nest0_1 [label="Animal Welfare Assessment" color="#BDBDBD" fillcolor="#F5F5F5" shape=rectangle style=filled]
+		nest0_2 [label="Allergy Testing" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+		nest0_3 [label="Spay or Neuter Procedure" color="#8C9EFF" fillcolor="#D3D7EB" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#8C9EFF" penwidth=1.5 style=dashed label="tests" dir=forward]
+	N1 -> N2 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#8C9EFF" penwidth=1.5 style=solid label="consults" dir=forward]
+	N4 -> N5 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="medicates" dir=forward]
+	nest0_0 -> nest0_1 [color="#BDBDBD" penwidth=1.5 style=solid label="inspects" dir=forward]
+	nest0_1 -> nest0_2 [color="#BDBDBD" penwidth=1.5 style=solid label="prescribes" dir=forward]
+	nest0_2 -> nest0_3 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N6 [color="#8C9EFF" penwidth=1.5 style=solid label="bills" dir=forward]
+	N0 -> M0 [color="#8C9EFF" penwidth=1.5 style=solid label="treats" dir=forward]
+	N2 -> M0 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	M0 -> N4 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N4 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N2 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N0 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_139.dot b/test/diagrams/scanned_easy/diagrams_139.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d42013155d5e15ce80eeecf88eddcd4eaf6f851b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_139.dot
@@ -0,0 +1,52 @@
+digraph {
+	rankdir=RL
+	N0 [label="Creative Arts Activities" color="#FF5722" fillcolor="#FFCCBC" shape=action style=filled]
+	N1 [label="Nap Time Supervision" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N2 [label="Enrollment and Admissions" color="#FFF8A6" fillcolor="#FFFDE0" shape=document style=filled]
+	N3 [label="Field Trip Organization" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N4 [label="Curriculum Planning" color="#FF5722" fillcolor="#FFCCBC" shape=rect style=filled]
+	N5 [label="First Aid Administration" color="#FF5722" fillcolor="#FFCCBC" shape=diamond style=filled]
+	N6 [label="Safety Supervision" color="#FFF9AE" fillcolor="#FFFCE6" shape=document style=filled]
+	N7 [label="Toddler Activities" color="#FFF9AE" fillcolor="#FFFCE6" shape=parallelogram style=filled]
+	N8 [label="Hygiene Practices" color="#FF5722" fillcolor="#FFCCBC" shape=vnode_shape style=filled]
+	N9 [label="Nutritional Meal Preparation" color="#FFF8A6" fillcolor="#FFFDE0" shape=diamond style=filled]
+	N10 [label="Child Protection Policies" color="#FFF8A6" fillcolor="#FFFDE0" shape=action style=filled]
+	N11 [label="Potty Training Assistance" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N12 [label="Emotional Support" color="#FFF9AE" fillcolor="#FFFCE6" shape=multipledocuments style=filled]
+	S0 [label="" color="#FFF9AE" fillcolor="#FFFCE6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFF9AE" fillcolor="#FFFCE6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Early Literacy Programs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Early Literacy Programs"
+		nest0_0 [label="Child Psychology Application" color="#FFF9AE" fillcolor="#FFFCE6" shape=preparation style=filled]
+		nest0_1 [label="Group Activities Coordination" color="#FFF8A6" fillcolor="#FFFDE0" shape=multipledocuments style=filled]
+		nest0_2 [label="Child Development Assessment" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FF5722" penwidth=1.5 style=solid label="maintains" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="guides" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFF9AE" penwidth=1.5 style=solid label="organizes" dir=forward]
+	N6 -> N7 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFF9AE" penwidth=1.5 style=solid label="licenses" dir=forward]
+	nest0_1 -> nest0_2 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#000000" penwidth=1.5 style=solid label="feeds" dir=forward]
+	nest0_2 -> N2 [color="#000000" penwidth=1.5 style=solid label="safeguards" dir=forward]
+	N4 -> S0 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#FF5722" penwidth=1.5 style=dashed label="documents" dir=forward]
+	N5 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid label="certifies" dir=forward]
+	N2 -> M0 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_139.txt b/test/diagrams/scanned_easy/diagrams_139.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f6520085183d7ca56250d26250c8d5a0eb0c71a6
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_139.txt
@@ -0,0 +1,22 @@
+<Child Development Assessment, safeguards, Enrollment and Admissions>
+<Child Protection Policies, connectedTo, Potty Training Assistance>
+<Child Psychology Application, licenses, Group Activities Coordination>
+<Creative Arts Activities, connectedTo, Nap Time Supervision>
+<Curriculum Planning, connectedTo, First Aid Administration>
+<Curriculum Planning, connectedTo, Toddler Activities>
+<Curriculum Planning, documents, Emotional Support>
+<Enrollment and Admissions, connectedTo, Toddler Activities>
+<Enrollment and Admissions, guides, Field Trip Organization>
+<Field Trip Organization, certifies, Toddler Activities>
+<Field Trip Organization, connectedTo, Curriculum Planning>
+<First Aid Administration, connectedTo, Hygiene Practices>
+<First Aid Administration, connectedTo, Toddler Activities>
+<First Aid Administration, feeds, Child Psychology Application>
+<First Aid Administration, organizes, Safety Supervision>
+<Group Activities Coordination, connectedTo, Child Development Assessment>
+<Hygiene Practices, connectedTo, Nutritional Meal Preparation>
+<Nap Time Supervision, maintains, Enrollment and Admissions>
+<Nutritional Meal Preparation, connectedTo, Child Protection Policies>
+<Potty Training Assistance, connectedTo, Emotional Support>
+<Safety Supervision, connectedTo, Toddler Activities>
+<Toddler Activities, connectedTo, Hygiene Practices>
diff --git a/test/diagrams/scanned_easy/diagrams_140.txt b/test/diagrams/scanned_easy/diagrams_140.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9822f3ee9835645c861f6d3afd8b6f7d34d052ed
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_140.txt
@@ -0,0 +1,19 @@
+<Behavior Management, accommodates, Hygiene Practices>
+<Behavior Management, connectedTo, Teacher_Child Ratio Management>
+<Child Development Assessment, connectedTo, First Aid Administration>
+<Child Psychology Application, advises, Enrollment and Admissions>
+<Creative Arts Activities, connectedTo, Music and Movement Activities>
+<Enrollment and Admissions, reports, Creative Arts Activities>
+<Field Trip Organization, connectedTo, Child Psychology Application>
+<Field Trip Organization, connectedTo, Enrollment and Admissions>
+<Field Trip Organization, connectedTo, Music and Movement Activities>
+<Hygiene Practices, connectedTo, Individualized Attention>
+<Individualized Attention, connectedTo, Toddler Activities>
+<Music and Movement Activities, connectedTo, First Aid Administration>
+<Outdoor Play Supervision, connectedTo, Field Trip Organization>
+<Parent Communication, connectedTo, Behavior Management>
+<Parent Communication, connectedTo, Hygiene Practices>
+<Staff Training and Certification, monitors, Child Development Assessment>
+<Teacher_Child Ratio Management, documents, Hygiene Practices>
+<Toddler Activities, connectedTo, Outdoor Play Supervision>
+<Toddler Activities, observes, Staff Training and Certification>
diff --git a/test/diagrams/scanned_easy/diagrams_141.dot b/test/diagrams/scanned_easy/diagrams_141.dot
new file mode 100644
index 0000000000000000000000000000000000000000..dd21d1d893fbdeaf0ce1a422b937f39419fcf6da
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_141.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=LR
+	N0 [label="Child Protection Policies" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N1 [label="Emotional Support" color="#7E57C2" fillcolor="#EDE7F6" shape=document style=filled]
+	N2 [label="Emergency Evacuation Drills" color="#7E57C2" fillcolor="#EDE7F6" shape=action style=filled]
+	N3 [label="Childcare Facility Licensing" color="#AB47BC" fillcolor="#F3E5F5" shape=rectangle style=filled]
+	N4 [label="First Aid Administration" color="#FFC107" fillcolor="#FFECB3" shape=action style=filled]
+	N5 [label="Social Skill Development" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N6 [label="Diaper Changing" color="#FFC107" fillcolor="#FFECB3" shape=preparation style=filled]
+	N7 [label="Staff Training and Certification" color="#7E57C2" fillcolor="#EDE7F6" shape=multipledocuments style=filled]
+	N8 [label="Early Literacy Programs" color="#FFC107" fillcolor="#FFECB3" shape=predefinedprocess style=filled]
+	N9 [label="Parent Communication" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N10 [label="Teacher_Child Ratio Management" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	S0 [label="" color="#FFC107" fillcolor="#FFECB3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Nutritional Meal Preparation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Nutritional Meal Preparation"
+		nest0_0 [label="Outdoor Play Supervision" color="#7E57C2" fillcolor="#EDE7F6" shape=database style=filled]
+		nest0_1 [label="Behavior Management" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+		nest0_2 [label="Field Trip Organization" color="#7E57C2" fillcolor="#EDE7F6" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="trains" dir=forward]
+	N4 -> N5 [color="#AB47BC" penwidth=1.5 style=dashed label="facilitates" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="organizes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="teaches" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#7E57C2" penwidth=1.5 style=dashed label="comforts" dir=forward]
+	N3 -> nest0_0 [color="#AB47BC" penwidth=1.5 style=dashed label="licenses" dir=forward]
+	nest0_2 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest0_0 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N5 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N2 -> N5 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_141.txt b/test/diagrams/scanned_easy/diagrams_141.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b658542137fa07f066a457abcdd567c784132603
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_141.txt
@@ -0,0 +1,20 @@
+<Behavior Management, comforts, Field Trip Organization>
+<Child Protection Policies, connectedTo, Emotional Support>
+<Childcare Facility Licensing, licenses, Outdoor Play Supervision>
+<Childcare Facility Licensing, trains, First Aid Administration>
+<Diaper Changing, connectedTo, Staff Training and Certification>
+<Early Literacy Programs, connectedTo, Parent Communication>
+<Emergency Evacuation Drills, connectedTo, Childcare Facility Licensing>
+<Emergency Evacuation Drills, connectedTo, Diaper Changing>
+<Emergency Evacuation Drills, connectedTo, Early Literacy Programs>
+<Emergency Evacuation Drills, connectedTo, Social Skill Development>
+<Emotional Support, connectedTo, Emergency Evacuation Drills>
+<Field Trip Organization, connectedTo, First Aid Administration>
+<Field Trip Organization, connectedTo, Social Skill Development>
+<First Aid Administration, facilitates, Social Skill Development>
+<Outdoor Play Supervision, connectedTo, Behavior Management>
+<Parent Communication, teaches, Teacher_Child Ratio Management>
+<Social Skill Development, organizes, Diaper Changing>
+<Staff Training and Certification, connectedTo, Early Literacy Programs>
+<Staff Training and Certification, connectedTo, Social Skill Development>
+<Teacher_Child Ratio Management, connectedTo, Outdoor Play Supervision>
diff --git a/test/diagrams/scanned_easy/diagrams_142.txt b/test/diagrams/scanned_easy/diagrams_142.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fbfaf82d38038da8915401ec8da63f5f7cada2ee
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_142.txt
@@ -0,0 +1,23 @@
+<Care Plan Development, connectedTo, Daily Living Assistance>
+<Caregiver Training, comforts, Companionship>
+<Chronic Disease Management, prevents, Family Communication>
+<Companionship, connectedTo, Nutritional Assessment>
+<Daily Living Assistance, connectedTo, Chronic Disease Management>
+<Dementia Care, connectedTo, Memory Care>
+<Family Communication, connectedTo, Dementia Care>
+<Family Communication, connectedTo, Nutritional Assessment>
+<Long_Term Care Planning, guides, Mobility Support>
+<Memory Care, connectedTo, Palliative Care>
+<Memory Care, medicates, Nutritional Assessment>
+<Mobility Support, activates, Nutritional Assessment>
+<Mobility Support, connectedTo, Care Plan Development>
+<Mobility Support, connectedTo, Caregiver Training>
+<Mobility Support, connectedTo, Recreational Activities Planning>
+<Mobility Support, engages, Nutritional Assessment>
+<Nutritional Assessment, connectedTo, Smart Home Integration for Seniors>
+<Palliative Care, connectedTo, Caregiver Training>
+<Recreational Activities Planning, administers, Caregiver Training>
+<Recreational Activities Planning, connectedTo, Care Plan Development>
+<Recreational Activities Planning, connectedTo, Respite Care>
+<Respite Care, connectedTo, Telehealth for Seniors>
+<Telehealth for Seniors, connectedTo, Recreational Activities Planning>
diff --git a/test/diagrams/scanned_easy/diagrams_143.dot b/test/diagrams/scanned_easy/diagrams_143.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7f2a0ec3a97a281543b60fd1ce1e5cd267903797
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_143.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=RL
+	N0 [label="Caregiver Training" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N1 [label="Pain Management" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+	N2 [label="Mobility Support" color="#F44336" fillcolor="#FFCDD2" shape=action style=filled]
+	N3 [label="Rehabilitation Support" color="#FFF8A6" fillcolor="#FFFDE0" shape=action style=filled]
+	N4 [label="Occupational Therapy" color="#F44336" fillcolor="#FFCDD2" shape=hexagon style=filled]
+	N5 [label="Social Engagement Activities" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N6 [label="Care Plan Development" color="#66BB6A" fillcolor="#E8F5E9" shape=database style=filled]
+	S0 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Palliative Care {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Palliative Care"
+		nest0_0 [label="Nursing Care" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+		nest0_1 [label="Dementia Care" color="#FFF8A6" fillcolor="#FFFDE0" shape=document style=filled]
+		nest0_2 [label="Fall Prevention" color="#66BB6A" fillcolor="#E8F5E9" shape=vnode_shape style=filled]
+		nest0_3 [label="Legal Aid Referrals" color="#FFF8A6" fillcolor="#FFFDE0" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFF8A6" penwidth=1.5 style=dashed label="comforts" dir=forward]
+	N3 -> N4 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#66BB6A" penwidth=1.5 style=dashed label="rehabilitates" dir=forward]
+	nest0_1 -> nest0_2 [color="#F44336" penwidth=1.5 style=solid label="communicates" dir=forward]
+	nest0_2 -> nest0_3 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S1 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N3 [color="#000000" penwidth=1.5 style=dashed label="documents" dir=forward]
+	S1 -> N6 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#000000" penwidth=1.5 style=dashed label="engages" dir=forward]
+	N3 -> M0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_144.txt b/test/diagrams/scanned_easy/diagrams_144.txt
new file mode 100644
index 0000000000000000000000000000000000000000..282f6b93894076927b8843fd088e69aa5f66cd56
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_144.txt
@@ -0,0 +1,17 @@
+<Caregiver Training, connectedTo, Fall Prevention>
+<Caregiver Training, connectedTo, Long_Term Care Planning>
+<Caregiver Training, connectedTo, Medication Management>
+<Caregiver Training, connectedTo, Mobility Support>
+<Caregiver Training, facilitates, Pain Management>
+<Chronic Disease Management, connectedTo, Pain Management>
+<Emotional Support and Counseling, connectedTo, Caregiver Training>
+<Fall Prevention, connectedTo, Mobility Support>
+<Fall Prevention, connectedTo, Occupational Therapy>
+<Long_Term Care Planning, connectedTo, Fall Prevention>
+<Medication Management, transports, Speech Therapy>
+<Occupational Therapy, connectedTo, Chronic Disease Management>
+<Pain Management, connectedTo, Long_Term Care Planning>
+<Pain Management, prevents, Medication Management>
+<Personal Care Assistance, accompanies, Emotional Support and Counseling>
+<Personal Care Assistance, connectedTo, Long_Term Care Planning>
+<Speech Therapy, manages, Long_Term Care Planning>
diff --git a/test/diagrams/scanned_easy/diagrams_145.dot b/test/diagrams/scanned_easy/diagrams_145.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d4e4b98dd00b288e9a65de82557ccddd8e25448d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_145.dot
@@ -0,0 +1,40 @@
+digraph {
+	rankdir=BT
+	N0 [label="Reconstruction" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N1 [label="Satellite Imagery Analysis" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	N2 [label="Geographic Information Systems for Disasters" color="#673AB7" fillcolor="#D1C4E9" shape=rect style=filled]
+	N3 [label="Resource Mobilization" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N4 [label="Damage Assessment" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N5 [label="Resilience Building" color="#FF5722" fillcolor="#FFCCBC" shape=database style=filled]
+	N6 [label="Climate Change Adaptation for Disasters" color="#E57373" fillcolor="#FFEBEE" shape=hexagon style=filled]
+	N7 [label="Environmental Remediation" color="#FF5722" fillcolor="#FFCCBC" shape=action style=filled]
+	S0 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Search and Rescue Operations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Search and Rescue Operations"
+		nest0_0 [label="Post_Disaster Evaluation" color="#673AB7" fillcolor="#D1C4E9" shape=action style=filled]
+		nest0_1 [label="Community Preparedness" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+		nest0_2 [label="Mitigation Strategies" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram style=filled]
+		nest0_3 [label="Information Dissemination" color="#FF5722" fillcolor="#FFCCBC" shape=database style=filled]
+	}
+	N0 -> N1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="funds" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="deploys" dir=forward]
+	nest0_1 -> nest0_2 [color="#673AB7" penwidth=1.5 style=dashed label="assesses" dir=forward]
+	nest0_2 -> nest0_3 [color="#FF5722" penwidth=1.5 style=solid label="identifies" dir=forward]
+	N5 -> nest0_0 [color="#E57373" penwidth=1.5 style=solid label="distributes" dir=forward]
+	nest0_3 -> N3 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S1 -> N3 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#FF5722" penwidth=1.5 style=dashed label="evacuates" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_145.txt b/test/diagrams/scanned_easy/diagrams_145.txt
new file mode 100644
index 0000000000000000000000000000000000000000..385efdee8e1eb9f3937eff15f1a5305a041e44dc
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_145.txt
@@ -0,0 +1,16 @@
+<Climate Change Adaptation for Disasters, funds, Environmental Remediation>
+<Community Preparedness, assesses, Mitigation Strategies>
+<Damage Assessment, connectedTo, Resilience Building>
+<Geographic Information Systems for Disasters, connectedTo, Resource Mobilization>
+<Information Dissemination, connectedTo, Resource Mobilization>
+<Mitigation Strategies, identifies, Information Dissemination>
+<Post_Disaster Evaluation, deploys, Community Preparedness>
+<Reconstruction, connectedTo, Satellite Imagery Analysis>
+<Resilience Building, connectedTo, Climate Change Adaptation for Disasters>
+<Resilience Building, distributes, Post_Disaster Evaluation>
+<Resource Mobilization, connectedTo, Damage Assessment>
+<Satellite Imagery Analysis, connectedTo, Damage Assessment>
+<Satellite Imagery Analysis, connectedTo, Geographic Information Systems for Disasters>
+<Satellite Imagery Analysis, connectedTo, Resilience Building>
+<Satellite Imagery Analysis, connectedTo, Resource Mobilization>
+<Satellite Imagery Analysis, evacuates, Damage Assessment>
diff --git a/test/diagrams/scanned_easy/diagrams_146.txt b/test/diagrams/scanned_easy/diagrams_146.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b8f99bc1de7ff8ae8ba4f9752cdcd29424c04291
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_146.txt
@@ -0,0 +1,24 @@
+<Communication Protocols, connectedTo, Search and Rescue Operations>
+<Community Preparedness, connectedTo, Cash Transfer Programs>
+<Community Preparedness, connectedTo, Drone Deployment for Assessment>
+<Community Preparedness, mitigates, Resource Mobilization>
+<Damage Assessment, connectedTo, Hazard Mapping>
+<Debris Management, connectedTo, Cash Transfer Programs>
+<Debris Management, connectedTo, Geographic Information Systems for Disasters>
+<Debris Management, connectedTo, Vulnerability Analysis>
+<Drone Deployment for Assessment, connectedTo, Resource Mobilization>
+<Drone Deployment for Assessment, reports, Communication Protocols>
+<Economic Recovery Initiatives, connectedTo, Satellite Imagery Analysis>
+<Geographic Information Systems for Disasters, protects, Post_Disaster Evaluation>
+<Hazard Mapping, connectedTo, Debris Management>
+<Post_Disaster Evaluation, connectedTo, Cash Transfer Programs>
+<Post_Disaster Evaluation, connectedTo, Communication Protocols>
+<Post_Disaster Evaluation, connectedTo, Vulnerability Analysis>
+<Psychosocial Support, connectedTo, Economic Recovery Initiatives>
+<Public Awareness Campaigns, connectedTo, Cash Transfer Programs>
+<Public Awareness Campaigns, provides, Community Preparedness>
+<Resource Mobilization, connectedTo, Communication Protocols>
+<Resource Mobilization, connectedTo, Psychosocial Support>
+<Satellite Imagery Analysis, prevents, Communication Protocols>
+<Search and Rescue Operations, connectedTo, Cash Transfer Programs>
+<Vulnerability Analysis, connectedTo, Public Awareness Campaigns>
diff --git a/test/diagrams/scanned_easy/diagrams_148.dot b/test/diagrams/scanned_easy/diagrams_148.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6db35835663362394680872c33075d303a10394b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_148.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=TB
+	N0 [label="Military Strategy Development" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	N1 [label="Recruitment" color="#AB47BC" fillcolor="#F3E5F5" shape=action style=filled]
+	N2 [label="Intelligence Gathering" color="#4285F4" fillcolor="#D0E0F8" shape=database style=filled]
+	N3 [label="Reconnaissance" color="#AB47BC" fillcolor="#F3E5F5" shape=rectangle style=filled]
+	N4 [label="Space Operations" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N5 [label="Supply Chain Management" color="#4285F4" fillcolor="#D0E0F8" shape=action style=filled]
+	N6 [label="Medical Support" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+	N7 [label="Civil_Military Cooperation" color="#4285F4" fillcolor="#D0E0F8" shape=inputoutput style=filled]
+	N8 [label="Veteran Support" color="#80DDEA" fillcolor="#D3F7F9" shape=action style=filled]
+	N9 [label="Unmanned Systems Operation" color="#AB47BC" fillcolor="#F3E5F5" shape=diamond style=filled]
+	S0 [label="" color="#80DDEA" fillcolor="#D3F7F9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#4285F4" fillcolor="#D0E0F8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Ground Operations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ground Operations"
+		nest0_0 [label="Force Projection" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+		nest0_1 [label="Cyber Warfare Operations" color="#80DDEA" fillcolor="#D3F7F9" shape=multipledocuments style=filled]
+		nest0_2 [label="Targeting" color="#AB47BC" fillcolor="#F3E5F5" shape=rectangle style=filled]
+		nest0_3 [label="Counter_Terrorism Operations" color="#80DDEA" fillcolor="#D3F7F9" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="coordinates" dir=forward]
+	N3 -> N4 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid label="detains" dir=forward]
+	N1 -> nest0_0 [color="#AB47BC" penwidth=1.5 style=solid label="equips" dir=forward]
+	nest0_3 -> N9 [color="#80DDEA" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	N3 -> S0 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#4285F4" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_148.txt b/test/diagrams/scanned_easy/diagrams_148.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8b2f96b395a889a7e7e45548d463ac38b155d48a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_148.txt
@@ -0,0 +1,18 @@
+<Civil_Military Cooperation, connectedTo, Veteran Support>
+<Counter_Terrorism Operations, communicates, Unmanned Systems Operation>
+<Cyber Warfare Operations, connectedTo, Targeting>
+<Force Projection, connectedTo, Cyber Warfare Operations>
+<Intelligence Gathering, coordinates, Reconnaissance>
+<Medical Support, connectedTo, Civil_Military Cooperation>
+<Military Strategy Development, connectedTo, Recruitment>
+<Military Strategy Development, connectedTo, Space Operations>
+<Reconnaissance, connectedTo, Medical Support>
+<Reconnaissance, connectedTo, Space Operations>
+<Reconnaissance, reports, Civil_Military Cooperation>
+<Recruitment, connectedTo, Intelligence Gathering>
+<Recruitment, connectedTo, Space Operations>
+<Recruitment, equips, Force Projection>
+<Space Operations, connectedTo, Supply Chain Management>
+<Supply Chain Management, connectedTo, Medical Support>
+<Targeting, detains, Counter_Terrorism Operations>
+<Veteran Support, connectedTo, Unmanned Systems Operation>
diff --git a/test/diagrams/scanned_easy/diagrams_149.dot b/test/diagrams/scanned_easy/diagrams_149.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4b5630e457a31e8522b249a3bbd95099e10110a8
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_149.dot
@@ -0,0 +1,52 @@
+digraph {
+	rankdir=TB
+	N0 [label="Military Law" color="#26A69A" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N1 [label="Ground Operations" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+	N2 [label="Chaplain Services" color="#26A69A" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N3 [label="Rules of Engagement" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+	N4 [label="Combat Operations" color="#66BB6A" fillcolor="#E8F5E9" shape=rect style=filled]
+	N5 [label="Peacekeeping Missions" color="#66BB6A" fillcolor="#E8F5E9" shape=inputoutput style=filled]
+	N6 [label="Supply Chain Management" color="#66BB6A" fillcolor="#E8F5E9" shape=vnode_shape style=filled]
+	N7 [label="Unmanned Systems Operation" color="#26A69A" fillcolor="#E0F2F1" shape=document style=filled]
+	N8 [label="Counter_Terrorism Operations" color="#EAEFA5" fillcolor="#FDFCEB" shape=database style=filled]
+	N9 [label="Crisis Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N10 [label="Medical Support" color="#26A69A" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	N11 [label="Disaster Relief Deployment" color="#EAEFA5" fillcolor="#FDFCEB" shape=multipledocuments style=filled]
+	S0 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Recruitment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Recruitment"
+		nest0_0 [label="Space Operations" color="#26A69A" fillcolor="#E0F2F1" shape=multipledocuments style=filled]
+		nest0_1 [label="Force Projection" color="#66BB6A" fillcolor="#E8F5E9" shape=rect style=filled]
+		nest0_2 [label="Cyber Warfare Operations" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+		nest0_3 [label="Readiness Assessment" color="#EAEFA5" fillcolor="#FDFCEB" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#26A69A" penwidth=1.5 style=solid label="monitors" dir=forward]
+	N6 -> N7 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="disarms" dir=forward]
+	N8 -> N9 [color="#26A69A" penwidth=1.5 style=dashed label="innovates" dir=forward]
+	N9 -> N10 [color="#66BB6A" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	N10 -> N11 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#EAEFA5" penwidth=1.5 style=dashed label="tests" dir=forward]
+	nest0_1 -> nest0_2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest0_0 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N4 [color="#EAEFA5" penwidth=1.5 style=solid label="plans" dir=forward]
+	N2 -> S0 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=dashed label="warns" dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#EAEFA5" penwidth=1.5 style=solid label="inspects" dir=forward]
+	N3 -> M0 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N10 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_150.txt b/test/diagrams/scanned_easy/diagrams_150.txt
new file mode 100644
index 0000000000000000000000000000000000000000..04a690c759ca0820844162750bde64f44375efe4
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_150.txt
@@ -0,0 +1,23 @@
+<Air Operations, connectedTo, Military Strategy Development>
+<Air Operations, connectedTo, Reconnaissance>
+<Civil_Military Cooperation, connectedTo, Disaster Relief Deployment>
+<Civil_Military Cooperation, connectedTo, Reconnaissance>
+<Civil_Military Cooperation, intelligence, Supply Chain Management>
+<Counter_Insurgency Operations, connectedTo, Family Support Programs>
+<Counter_Insurgency Operations, connectedTo, Reconnaissance>
+<Crisis Management, connectedTo, Equipment Maintenance>
+<Crisis Management, operates, Rules of Engagement>
+<Cyber Warfare Operations, connectedTo, Troop Deployment>
+<Disaster Relief Deployment, evaluates, Operations Planning>
+<Equipment Maintenance, communicates, Counter_Insurgency Operations>
+<Family Support Programs, coordinates, Disaster Relief Deployment>
+<Military Law, connectedTo, Air Operations>
+<Military Strategy Development, connectedTo, Disaster Relief Deployment>
+<Operations Planning, connectedTo, Crisis Management>
+<Operations Planning, connectedTo, Rules of Engagement>
+<Reconnaissance, maintains, Space Operations>
+<Rules of Engagement, connectedTo, Civil_Military Cooperation>
+<Rules of Engagement, negotiates, Reconnaissance>
+<Space Operations, secures, Cyber Warfare Operations>
+<Supply Chain Management, trains, Reconnaissance>
+<Troop Deployment, connectedTo, Logistics Support>
diff --git a/test/diagrams/scanned_easy/diagrams_151.dot b/test/diagrams/scanned_easy/diagrams_151.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f44bc65f6aabab66e91bed7368e2f5e4cbb87a98
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_151.dot
@@ -0,0 +1,53 @@
+digraph {
+	rankdir=RL
+	N0 [label="Unmanned Aerial Vehicle Integration" color="#D3EB9F" fillcolor="#F8FDD3" shape=rect style=filled]
+	N1 [label="Flight Planning" color="#D3EB9F" fillcolor="#F8FDD3" shape=action style=filled]
+	N2 [label="Aircraft Manufacturing" color="#CFCFCF" fillcolor="#F6F6F6" shape=predefinedprocess style=filled]
+	N3 [label="Pilot Training" color="#4FC3F7" fillcolor="#E1F5FE" shape=multipledocuments style=filled]
+	N4 [label="Airworthiness Certification" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N5 [label="Aviation Safety Investigation" color="#4FC3F7" fillcolor="#E1F5FE" shape=hexagon style=filled]
+	N6 [label="Aircraft Maintenance" color="#CFCFCF" fillcolor="#F6F6F6" shape=rect style=filled]
+	N7 [label="Ground Support" color="#CFCFCF" fillcolor="#F6F6F6" shape=inputoutput style=filled]
+	N8 [label="Engine Overhaul" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+	N9 [label="Airport Operations" color="#4FC3F7" fillcolor="#E1F5FE" shape=rect style=filled]
+	N10 [label="Weather Briefing" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	S0 [label="" color="#4FC3F7" fillcolor="#E1F5FE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#D3EB9F" fillcolor="#F8FDD3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#D3EB9F" fillcolor="#F8FDD3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Aircraft De_icing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Aircraft De_icing"
+		nest0_0 [label="Passenger Boarding" color="#D3EB9F" fillcolor="#F8FDD3" shape=vnode_shape style=filled]
+		nest0_1 [label="Cargo Loading" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+		nest0_2 [label="Security Screening" color="#CFCFCF" fillcolor="#F6F6F6" shape=inputoutput style=filled]
+		nest0_3 [label="Noise Abatement Procedures" color="#D3EB9F" fillcolor="#F8FDD3" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CFCFCF" penwidth=1.5 style=dashed label="departs" dir=forward]
+	N5 -> N6 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#CFCFCF" penwidth=1.5 style=solid label="certifies" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid label="trains" dir=forward]
+	nest0_2 -> nest0_3 [color="#D3EB9F" penwidth=1.5 style=solid label="designs" dir=forward]
+	N5 -> nest0_0 [color="#4FC3F7" penwidth=1.5 style=solid label="controls" dir=forward]
+	nest0_3 -> N9 [color="#000000" penwidth=1.5 style=solid label="checks" dir=forward]
+	N4 -> S0 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#CFCFCF" penwidth=1.5 style=dashed label="unloads" dir=forward]
+	S0 -> N7 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#D3EB9F" penwidth=1.5 style=solid label="plans" dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#CFCFCF" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N0 -> M1 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N8 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_151.txt b/test/diagrams/scanned_easy/diagrams_151.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f1c6bfdac6a841b6b1c2151cd884fac7c89935dc
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_151.txt
@@ -0,0 +1,24 @@
+<Aircraft Maintenance, connectedTo, Ground Support>
+<Aircraft Manufacturing, connectedTo, Pilot Training>
+<Airport Operations, connectedTo, Weather Briefing>
+<Airworthiness Certification, connectedTo, Engine Overhaul>
+<Airworthiness Certification, connectedTo, Ground Support>
+<Airworthiness Certification, departs, Aviation Safety Investigation>
+<Airworthiness Certification, optimizes, Engine Overhaul>
+<Airworthiness Certification, unloads, Airport Operations>
+<Aviation Safety Investigation, connectedTo, Aircraft Maintenance>
+<Aviation Safety Investigation, connectedTo, Engine Overhaul>
+<Aviation Safety Investigation, connectedTo, Ground Support>
+<Aviation Safety Investigation, controls, Passenger Boarding>
+<Cargo Loading, trains, Security Screening>
+<Engine Overhaul, connectedTo, Airport Operations>
+<Flight Planning, connectedTo, Aircraft Manufacturing>
+<Ground Support, connectedTo, Engine Overhaul>
+<Noise Abatement Procedures, checks, Airport Operations>
+<Passenger Boarding, certifies, Cargo Loading>
+<Pilot Training, connectedTo, Airworthiness Certification>
+<Pilot Training, connectedTo, Ground Support>
+<Security Screening, designs, Noise Abatement Procedures>
+<Unmanned Aerial Vehicle Integration, connectedTo, Engine Overhaul>
+<Unmanned Aerial Vehicle Integration, connectedTo, Flight Planning>
+<Unmanned Aerial Vehicle Integration, plans, Ground Support>
diff --git a/test/diagrams/scanned_easy/diagrams_152.dot b/test/diagrams/scanned_easy/diagrams_152.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b0a72755afe9a093c9ed8bf111c6ff9086ea4155
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_152.dot
@@ -0,0 +1,40 @@
+digraph {
+	rankdir=LR
+	N0 [label="Aircraft Maintenance" color="#DCE775" fillcolor="#FCFCE7" shape=inputoutput style=filled]
+	N1 [label="Air Traffic Control" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N2 [label="Security Screening" color="#DCE775" fillcolor="#FCFCE7" shape=diamond style=filled]
+	N3 [label="Passenger Boarding" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+	N4 [label="Fleet Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=document style=filled]
+	N5 [label="Flight Simulation" color="#EAEFA5" fillcolor="#FDFCEB" shape=document style=filled]
+	N6 [label="Airport Operations" color="#EAEFA5" fillcolor="#FDFCEB" shape=inputoutput style=filled]
+	N7 [label="Weather Briefing" color="#EAEFA5" fillcolor="#FDFCEB" shape=rectangle style=filled]
+	N8 [label="Sustainable Aviation Fuel Development" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+	N9 [label="Regulatory Compliance" color="#BDAFA8" fillcolor="#E4E0DF" shape=vnode_shape style=filled]
+	S0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Navigation System Check {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Navigation System Check"
+		nest0_0 [label="Delay Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+		nest0_1 [label="Avionics Repair" color="#BDAFA8" fillcolor="#E4E0DF" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#BDAFA8" penwidth=1.5 style=solid label="unloads" dir=forward]
+	N7 -> N8 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#EAEFA5" penwidth=1.5 style=dashed label="upgrades" dir=forward]
+	nest0_0 -> nest0_1 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#BDAFA8" penwidth=1.5 style=dashed label="inspects" dir=forward]
+	nest0_1 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#BDAFA8" penwidth=1.5 style=dashed label="navigates" dir=forward]
+	N5 -> M0 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_152.txt b/test/diagrams/scanned_easy/diagrams_152.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5bff3d34cedc79a95400affae8ef36fbc49a82e9
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_152.txt
@@ -0,0 +1,16 @@
+<Air Traffic Control, connectedTo, Security Screening>
+<Aircraft Maintenance, connectedTo, Air Traffic Control>
+<Airport Operations, unloads, Weather Briefing>
+<Avionics Repair, connectedTo, Passenger Boarding>
+<Delay Management, connectedTo, Avionics Repair>
+<Fleet Management, connectedTo, Flight Simulation>
+<Flight Simulation, connectedTo, Airport Operations>
+<Flight Simulation, connectedTo, Weather Briefing>
+<Passenger Boarding, connectedTo, Fleet Management>
+<Passenger Boarding, connectedTo, Flight Simulation>
+<Passenger Boarding, connectedTo, Weather Briefing>
+<Security Screening, connectedTo, Passenger Boarding>
+<Security Screening, inspects, Delay Management>
+<Security Screening, navigates, Weather Briefing>
+<Sustainable Aviation Fuel Development, upgrades, Regulatory Compliance>
+<Weather Briefing, connectedTo, Sustainable Aviation Fuel Development>
diff --git a/test/diagrams/scanned_easy/diagrams_153.dot b/test/diagrams/scanned_easy/diagrams_153.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2231ee48b383d1d8f88c988348c3d78e530ffae4
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_153.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=LR
+	N0 [label="Emergency Procedures Training" color="#7E57C2" fillcolor="#EDE7F6" shape=document style=filled]
+	N1 [label="Engine Overhaul" color="#C2B2F0" fillcolor="#EFE6FF" shape=parallelogram style=filled]
+	N2 [label="Fleet Management" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N3 [label="Aircraft Manufacturing" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N4 [label="Security Screening" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N5 [label="Cargo Loading" color="#E57373" fillcolor="#FFEBEE" shape=action style=filled]
+	N6 [label="Avionics Repair" color="#C2B2F0" fillcolor="#EFE6FF" shape=diamond style=filled]
+	S0 [label="" color="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#7E57C2" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Aircraft De_icing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Aircraft De_icing"
+		nest0_0 [label="Crew Resource Management" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+		nest0_1 [label="Remote Tower Operations" color="#C2B2F0" fillcolor="#EFE6FF" shape=document style=filled]
+		nest0_2 [label="Weather Briefing" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+		nest0_3 [label="Aerospace Engineering" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#C2B2F0" penwidth=1.5 style=solid label="guides" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N2 -> nest0_0 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N2 [color="#E57373" penwidth=1.5 style=solid label="departs" dir=forward]
+	N0 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N2 [color="#000000" penwidth=1.5 style=dashed label="schedules" dir=forward]
+	S0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#7E57C2" penwidth=1.5 style=dashed label="flies" dir=forward]
+	N0 -> M1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N4 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_153.txt b/test/diagrams/scanned_easy/diagrams_153.txt
new file mode 100644
index 0000000000000000000000000000000000000000..30ac20d911a35d82a28dc380d3b9b9c97650811e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_153.txt
@@ -0,0 +1,15 @@
+<Aerospace Engineering, departs, Fleet Management>
+<Aircraft Manufacturing, connectedTo, Security Screening>
+<Cargo Loading, guides, Avionics Repair>
+<Crew Resource Management, connectedTo, Remote Tower Operations>
+<Emergency Procedures Training, connectedTo, Engine Overhaul>
+<Emergency Procedures Training, connectedTo, Security Screening>
+<Emergency Procedures Training, schedules, Fleet Management>
+<Engine Overhaul, connectedTo, Fleet Management>
+<Engine Overhaul, connectedTo, Security Screening>
+<Fleet Management, connectedTo, Aircraft Manufacturing>
+<Fleet Management, connectedTo, Crew Resource Management>
+<Fleet Management, flies, Security Screening>
+<Remote Tower Operations, connectedTo, Weather Briefing>
+<Security Screening, connectedTo, Cargo Loading>
+<Weather Briefing, secures, Aerospace Engineering>
diff --git a/test/diagrams/scanned_easy/diagrams_154.dot b/test/diagrams/scanned_easy/diagrams_154.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8ef937501a47589f7fb01fc9485c29d15c984bc7
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_154.dot
@@ -0,0 +1,56 @@
+digraph {
+	rankdir=TB
+	N0 [label="ETA Estimation" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+	N1 [label="Historical Traffic Data Analysis" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N2 [label="Personalized Route Preferences" color="#FFF8A6" fillcolor="#FFFDE0" shape=diamond style=filled]
+	N3 [label="Autonomous Vehicle Navigation" color="#7E57C2" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+	N4 [label="Traffic Information" color="#388E3C" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N5 [label="GPS Positioning" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+	N6 [label="Digital Compass Integration" color="#7E57C2" fillcolor="#EDE7F6" shape=document style=filled]
+	N7 [label="Wearable Device Navigation" color="#388E3C" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N8 [label="Turn_by_Turn Directions" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N9 [label="Marine Charting" color="#388E3C" fillcolor="#C8E6C9" shape=diamond style=filled]
+	N10 [label="Altitude Tracking" color="#388E3C" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	N11 [label="Terrestrial Navigation" color="#7E57C2" fillcolor="#EDE7F6" shape=database style=filled]
+	N12 [label="Points of Interest Search" color="#388E3C" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N13 [label="Navigation Data Update" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N14 [label="Augmented Reality Navigation" color="#FFF8A6" fillcolor="#FFFDE0" shape=hexagon style=filled]
+	S0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#388E3C" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Public Transit Navigation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Public Transit Navigation"
+		nest0_0 [label="Waypoint Setting" color="#388E3C" fillcolor="#C8E6C9" shape=preparation style=filled]
+		nest0_1 [label="Hazard Alerts" color="#7E57C2" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#7E57C2" penwidth=1.5 style=solid label="displays" dir=forward]
+	N1 -> N2 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#388E3C" penwidth=1.5 style=dashed label="calculates" dir=forward]
+	N5 -> N6 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFF8A6" penwidth=1.5 style=solid label="locates" dir=forward]
+	N12 -> N13 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#FFF8A6" penwidth=1.5 style=dashed label="detects" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N11 -> nest0_0 [color="#FFF8A6" penwidth=1.5 style=solid label="tracks" dir=forward]
+	nest0_1 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> S0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#7E57C2" penwidth=1.5 style=dashed label="plans" dir=forward]
+	N3 -> M0 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N6 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N11 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_155.dot b/test/diagrams/scanned_easy/diagrams_155.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e3939cfbfa2380e5bd7ca0bd8bf1533feb6abd17
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_155.dot
@@ -0,0 +1,52 @@
+digraph {
+	rankdir=LR
+	N0 [label="Inertial Navigation System" color="#D2D2D2" fillcolor="#F0F0F0" shape=vnode_shape style=filled]
+	N1 [label="Personalized Route Preferences" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	N2 [label="Wearable Device Navigation" color="#FFCC7A" fillcolor="#FFF6D9" shape=action style=filled]
+	N3 [label="Celestial Navigation" color="#FFCC7A" fillcolor="#FFF6D9" shape=parallelogram style=filled]
+	N4 [label="Altitude Tracking" color="#BDBDBD" fillcolor="#F5F5F5" shape=inputoutput style=filled]
+	N5 [label="Hazard Alerts" color="#BDBDBD" fillcolor="#F5F5F5" shape=diamond style=filled]
+	N6 [label="Public Transit Navigation" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+	N7 [label="Dead Reckoning" color="#FFCC7A" fillcolor="#FFF6D9" shape=diamond style=filled]
+	N8 [label="Route Calculation" color="#D2D2D2" fillcolor="#F0F0F0" shape=parallelogram style=filled]
+	N9 [label="Speed Calculation" color="#BDBDBD" fillcolor="#F5F5F5" shape=database style=filled]
+	N10 [label="Points of Interest Search" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N11 [label="Location_Based Services" color="#BDBDBD" fillcolor="#F5F5F5" shape=inputoutput style=filled]
+	S0 [label="" color="#FFCC7A" fillcolor="#FFF6D9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#D2D2D2" fillcolor="#F0F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#BDBDBD" fillcolor="#F5F5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Voice Guidance Customization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Voice Guidance Customization"
+		nest0_0 [label="Indoor Navigation" color="#FFCC7A" fillcolor="#FFF6D9" shape=inputoutput style=filled]
+		nest0_1 [label="Topographic Mapping" color="#FFCC7A" fillcolor="#FFF6D9" shape=inputoutput style=filled]
+		nest0_2 [label="Waypoint Setting" color="#D2D2D2" fillcolor="#F0F0F0" shape=vnode_shape style=filled]
+		nest0_3 [label="Aeronautical Charting" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#BDBDBD" penwidth=1.5 style=solid label="alerts" dir=forward]
+	N6 -> N7 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#BDBDBD" penwidth=1.5 style=dashed label="locates" dir=forward]
+	N9 -> N10 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed label="follows" dir=forward]
+	nest0_2 -> nest0_3 [color="#BDBDBD" penwidth=1.5 style=dashed label="searches" dir=forward]
+	N6 -> nest0_0 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N10 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	N8 -> S0 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S1 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#FFCC7A" penwidth=1.5 style=dashed label="orients" dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed label="calibrates" dir=forward]
+	N5 -> M0 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N11 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_157.txt b/test/diagrams/scanned_easy/diagrams_157.txt
new file mode 100644
index 0000000000000000000000000000000000000000..28b981b5c622002e4db9fc76f1eb182a2e59ab95
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_157.txt
@@ -0,0 +1,22 @@
+<3D Printed Tooling, manufactures, Consumer Product Creation>
+<3D Printed Tooling, partOf, 3D Printed Tooling>
+<4D Printing, designs, Printing Parameter Optimization>
+<Consumer Product Creation, partOf, Consumer Product Creation>
+<Consumer Product Creation, secures, Custom Part Production>
+<Custom Part Production, connectedTo, Food Printing>
+<Custom Part Production, connectedTo, Quality Control>
+<Food Printing, connectedTo, Scaffolding for Tissue Engineering>
+<Food Printing, partOf, Food Printing>
+<Medical Device Prototyping, connectedTo, On_Demand Production>
+<Multi_Material Printing, connectedTo, Medical Device Prototyping>
+<Multi_Material Printing, connectedTo, On_Demand Production>
+<On_Demand Production, connectedTo, Quality Control>
+<On_Demand Production, controls, Custom Part Production>
+<On_Demand Production, designs, Printing Process>
+<Print Farm Management, connectedTo, Multi_Material Printing>
+<Print Farm Management, connectedTo, On_Demand Production>
+<Printing Parameter Optimization, connectedTo, On_Demand Production>
+<Printing Parameter Optimization, connectedTo, Print Farm Management>
+<Quality Control, connectedTo, Printing Process>
+<Scaffolding for Tissue Engineering, connectedTo, 3D Printed Tooling>
+<Scaffolding for Tissue Engineering, partOf, Scaffolding for Tissue Engineering>
diff --git a/test/diagrams/scanned_easy/diagrams_159.dot b/test/diagrams/scanned_easy/diagrams_159.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2ad77f39caa6ed726b24641f070f45965aec5ba2
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_159.dot
@@ -0,0 +1,38 @@
+digraph {
+	rankdir=LR
+	N0 [label="Print Farm Management" color="#FFE69C" fillcolor="#FFF9D4" shape=inputoutput style=filled]
+	N1 [label="Bioprinting" color="#FFE69C" fillcolor="#FFF9D4" shape=parallelogram style=filled]
+	N2 [label="Quality Control" color="#BDBDBD" fillcolor="#F5F5F5" shape=document style=filled]
+	N3 [label="Material Selection" color="#C2B2F0" fillcolor="#EFE6FF" shape=diamond style=filled]
+	N4 [label="Food Printing" color="#FFE69C" fillcolor="#FFF9D4" shape=vnode_shape style=filled]
+	N5 [label="3D Model Design" color="#C2B2F0" fillcolor="#EFE6FF" shape=vnode_shape style=filled]
+	N6 [label="Material Research and Development" color="#FFE69C" fillcolor="#FFF9D4" shape=multipledocuments style=filled]
+	N7 [label="Intellectual Property Protection for Designs" color="#BDBDBD" fillcolor="#F5F5F5" shape=preparation style=filled]
+	S0 [label="" color="#C2B2F0" fillcolor="#EFE6FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#BDBDBD" fillcolor="#F5F5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Fused Deposition Modeling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Fused Deposition Modeling"
+		nest0_0 [label="Selective Laser Sintering" color="#C2B2F0" fillcolor="#EFE6FF" shape=document style=filled]
+		nest0_1 [label="Mass Customization" color="#C2B2F0" fillcolor="#EFE6FF" shape=rectangle style=filled]
+		nest0_2 [label="On_Demand Production" color="#C2B2F0" fillcolor="#EFE6FF" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="secures" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#BDBDBD" penwidth=1.5 style=solid label="shares" dir=forward]
+	N4 -> N5 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#BDBDBD" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	nest0_0 -> nest0_1 [color="#FFE69C" penwidth=1.5 style=dashed label="automates" dir=forward]
+	nest0_1 -> nest0_2 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_159.txt b/test/diagrams/scanned_easy/diagrams_159.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e2196ea17eaacf9f56bd6a453d8d8f4d23e385d8
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_159.txt
@@ -0,0 +1,15 @@
+<3D Model Design, connectedTo, Material Research and Development>
+<Bioprinting, connectedTo, Food Printing>
+<Bioprinting, connectedTo, Material Selection>
+<Bioprinting, connectedTo, Quality Control>
+<Food Printing, connectedTo, 3D Model Design>
+<Mass Customization, connectedTo, On_Demand Production>
+<Material Research and Development, analyzes, Intellectual Property Protection for Designs>
+<Material Selection, connectedTo, Selective Laser Sintering>
+<Material Selection, shares, Food Printing>
+<On_Demand Production, connectedTo, Quality Control>
+<Print Farm Management, secures, Bioprinting>
+<Quality Control, connectedTo, Intellectual Property Protection for Designs>
+<Quality Control, connectedTo, Material Research and Development>
+<Quality Control, connectedTo, Material Selection>
+<Selective Laser Sintering, automates, Mass Customization>
diff --git a/test/diagrams/scanned_easy/diagrams_16.dot b/test/diagrams/scanned_easy/diagrams_16.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5050162fc474e3f59ad8d81479701d524c1f91c1
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_16.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=LR
+	N0 [label="Climate Modeling" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N1 [label="Sustainability Review" color="#4DD0E1" fillcolor="#C9F0F0" shape=database style=filled]
+	N2 [label="Policy Advocacy" color="#E57373" fillcolor="#FFEBEE" shape=diamond style=filled]
+	N3 [label="Citizen Science Initiative" color="#4DD0E1" fillcolor="#C9F0F0" shape=ellipse style=filled]
+	N4 [label="Ecological Footprint Analysis" color="#E57373" fillcolor="#FFEBEE" shape=action style=filled]
+	N5 [label="Ocean Cleanup" color="#4DD0E1" fillcolor="#C9F0F0" shape=hexagon style=filled]
+	N6 [label="Resource Tracking" color="#E57373" fillcolor="#FFEBEE" shape=database style=filled]
+	N7 [label="Energy Audit" color="#4DD0E1" fillcolor="#C9F0F0" shape=predefinedprocess style=filled]
+	N8 [label="Environmental Education Programs" color="#4DD0E1" fillcolor="#C9F0F0" shape=rectangle style=filled]
+	N0 -> N1 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#4DD0E1" penwidth=1.5 style=dashed label="cleans" dir=forward]
+	N5 -> N6 [color="#E57373" penwidth=1.5 style=dashed label="surveys" dir=forward]
+	N6 -> N7 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="mitigates" dir=forward]
+	N3 -> N6 [color="#000000" penwidth=1.5 style=solid label="certifies" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_16.txt b/test/diagrams/scanned_easy/diagrams_16.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c4a54d0e96dc7e538cb728bf4401ff051225ed08
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_16.txt
@@ -0,0 +1,9 @@
+<Citizen Science Initiative, certifies, Resource Tracking>
+<Citizen Science Initiative, connectedTo, Ecological Footprint Analysis>
+<Climate Modeling, connectedTo, Sustainability Review>
+<Ecological Footprint Analysis, cleans, Ocean Cleanup>
+<Energy Audit, mitigates, Environmental Education Programs>
+<Ocean Cleanup, surveys, Resource Tracking>
+<Policy Advocacy, connectedTo, Citizen Science Initiative>
+<Resource Tracking, connectedTo, Energy Audit>
+<Sustainability Review, connectedTo, Policy Advocacy>
diff --git a/test/diagrams/scanned_easy/diagrams_160.dot b/test/diagrams/scanned_easy/diagrams_160.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7d61d5b95dcd4a1c9dd33edee2ece696955feb2a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_160.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=RL
+	N0 [label="Public Perception of Nanotechnology" color="#FFE470" fillcolor="#FFFAE0" shape=action style=filled]
+	N1 [label="Nanofabrication Techniques" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+	N2 [label="Nanodevice Fabrication" color="#FFE470" fillcolor="#FFFAE0" shape=multipledocuments style=filled]
+	N3 [label="Lab_on_a_Chip Devices" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+	N4 [label="Advanced Materials Research" color="#FFE470" fillcolor="#FFFAE0" shape=preparation style=filled]
+	N5 [label="Nanoscale Imaging" color="#FFE470" fillcolor="#FFFAE0" shape=hexagon style=filled]
+	N6 [label="Nanomaterial Synthesis" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+	N7 [label="Photovoltaics" color="#FFE470" fillcolor="#FFFAE0" shape=inputoutput style=filled]
+	N8 [label="Transmission Electron Microscopy" color="#FFE470" fillcolor="#FFFAE0" shape=predefinedprocess style=filled]
+	N9 [label="Molecular Self_Assembly" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N10 [label="Energy Storage Applications" color="#FFE470" fillcolor="#FFFAE0" shape=rectangle style=filled]
+	N11 [label="Catalysis at Nanoscale" color="#66BB6A" fillcolor="#E8F5E9" shape=document style=filled]
+	N12 [label="Surface Functionalization" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	S0 [label="" color="#FFF176" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Drug Delivery Systems {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Drug Delivery Systems"
+		nest0_0 [label="Quantum Dots" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+		nest0_1 [label="Computational Nanotechnology" color="#FFF176" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+		nest0_2 [label="Nanoparticle Characterization" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFF176" penwidth=1.5 style=dashed label="integrates" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFE470" penwidth=1.5 style=solid label="commercializes" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFE470" penwidth=1.5 style=dashed label="researches" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFE470" penwidth=1.5 style=dashed label="controls" dir=forward]
+	N10 -> N11 [color="#FFE470" penwidth=1.5 style=solid label="enhances" dir=forward]
+	N11 -> N12 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N4 [color="#66BB6A" penwidth=1.5 style=solid label="protects" dir=forward]
+	N6 -> S0 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N5 -> N8 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest0_1 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_160.txt b/test/diagrams/scanned_easy/diagrams_160.txt
new file mode 100644
index 0000000000000000000000000000000000000000..11826e4d7907b7a47583e58c3b10becb3198b3f8
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_160.txt
@@ -0,0 +1,20 @@
+<Advanced Materials Research, commercializes, Nanoscale Imaging>
+<Catalysis at Nanoscale, connectedTo, Surface Functionalization>
+<Computational Nanotechnology, connectedTo, Nanoparticle Characterization>
+<Energy Storage Applications, connectedTo, Computational Nanotechnology>
+<Energy Storage Applications, enhances, Catalysis at Nanoscale>
+<Lab_on_a_Chip Devices, connectedTo, Advanced Materials Research>
+<Molecular Self_Assembly, connectedTo, Quantum Dots>
+<Molecular Self_Assembly, controls, Energy Storage Applications>
+<Nanodevice Fabrication, integrates, Lab_on_a_Chip Devices>
+<Nanofabrication Techniques, connectedTo, Nanodevice Fabrication>
+<Nanomaterial Synthesis, connectedTo, Catalysis at Nanoscale>
+<Nanomaterial Synthesis, connectedTo, Molecular Self_Assembly>
+<Nanomaterial Synthesis, connectedTo, Photovoltaics>
+<Nanoparticle Characterization, protects, Advanced Materials Research>
+<Nanoscale Imaging, connectedTo, Nanomaterial Synthesis>
+<Nanoscale Imaging, connectedTo, Transmission Electron Microscopy>
+<Photovoltaics, researches, Transmission Electron Microscopy>
+<Public Perception of Nanotechnology, connectedTo, Nanofabrication Techniques>
+<Quantum Dots, connectedTo, Computational Nanotechnology>
+<Transmission Electron Microscopy, connectedTo, Molecular Self_Assembly>
diff --git a/test/diagrams/scanned_easy/diagrams_161.txt b/test/diagrams/scanned_easy/diagrams_161.txt
new file mode 100644
index 0000000000000000000000000000000000000000..aac867cff5868a9efe2730bde90da00a825cb418
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_161.txt
@@ -0,0 +1,14 @@
+<Bio_Nanotechnology Interface, connectedTo, Molecular Self_Assembly>
+<Environmental Remediation with Nanomaterials, synthesizes, Transmission Electron Microscopy>
+<Ethical Implications of Nanotech, connectedTo, Environmental Remediation with Nanomaterials>
+<Molecular Self_Assembly, connectedTo, Nanoscale Imaging>
+<Nanofabrication Techniques, connectedTo, Bio_Nanotechnology Interface>
+<Nanoscale Imaging, deposits, Lab_on_a_Chip Devices>
+<Nanosensors, connectedTo, Ethical Implications of Nanotech>
+<Nanosensors, connectedTo, Molecular Self_Assembly>
+<Nanosensors, functionalizes, Bio_Nanotechnology Interface>
+<Public Perception of Nanotechnology, connectedTo, Molecular Self_Assembly>
+<Public Perception of Nanotechnology, integrates, Nanosensors>
+<Risk Assessment of Nanomaterials, connectedTo, Molecular Self_Assembly>
+<Risk Assessment of Nanomaterials, connectedTo, Public Perception of Nanotechnology>
+<Transmission Electron Microscopy, connectedTo, Nanofabrication Techniques>
diff --git a/test/diagrams/scanned_easy/diagrams_163.dot b/test/diagrams/scanned_easy/diagrams_163.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ce97af2c347f990fab62d7ff1653200111d97230
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_163.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=BT
+	N0 [label="Quantum Algorithm Development" color="#795548" fillcolor="#D7CCC8" shape=hexagon style=filled]
+	N1 [label="Quantum Computing Benchmarking" color="#FF8A65" fillcolor="#FBE9E7" shape=multipledocuments style=filled]
+	N2 [label="Quantum Computing Education" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N3 [label="Quantum Hardware Control" color="#E91E63" fillcolor="#FCE4EC" shape=predefinedprocess style=filled]
+	N4 [label="Topological Qubits" color="#E91E63" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N5 [label="Photonic Qubits" color="#E91E63" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	N6 [label="Quantum Error Correction" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N7 [label="Quantum Circuit Design" color="#E91E63" fillcolor="#FCE4EC" shape=rect style=filled]
+	N8 [label="Quantum Annealing" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N9 [label="Decoherence Mitigation" color="#FF8A65" fillcolor="#FBE9E7" shape=parallelogram style=filled]
+	N10 [label="Quantum Bit Design" color="#795548" fillcolor="#D7CCC8" shape=inputoutput style=filled]
+	N11 [label="Material Science Simulations" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N12 [label="Quantum Programming Languages" color="#795548" fillcolor="#D7CCC8" shape=hexagon style=filled]
+	M0 [label="" color="#E91E63" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Superconducting Qubits {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Superconducting Qubits"
+		nest0_0 [label="Laser Cooling for Ions" color="#E91E63" fillcolor="#FCE4EC" shape=inputoutput style=filled]
+		nest0_1 [label="Quantum Computing in Drug Discovery" color="#FF8A65" fillcolor="#FBE9E7" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FF8A65" penwidth=1.5 style=solid label="designs" dir=forward]
+	N2 -> N3 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#E91E63" penwidth=1.5 style=solid label="integrates" dir=forward]
+	N4 -> N5 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="factors" dir=forward]
+	N6 -> N7 [color="#FF8A65" penwidth=1.5 style=dashed label="shares" dir=forward]
+	N7 -> N8 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#E91E63" penwidth=1.5 style=solid label="controls" dir=forward]
+	N7 -> nest0_0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N6 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FF8A65" penwidth=1.5 style=solid label="models" dir=forward]
+	N0 -> M0 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	M0 -> N3 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N7 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_164.dot b/test/diagrams/scanned_easy/diagrams_164.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c03606b877650ba0862a8ed690e1d5873f95530c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_164.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=RL
+	N0 [label="Quantum Hardware Control" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	N1 [label="Quantum Communication Protocols" color="#9575CD" fillcolor="#EDE7F6" shape=multipledocuments style=filled]
+	N2 [label="Quantum Computing for AI" color="#92C79A" fillcolor="#E8F0EA" shape=vnode_shape style=filled]
+	N3 [label="Quantum Circuit Design" color="#F06292" fillcolor="#FCE4EC" shape=preparation style=filled]
+	N4 [label="Quantum Software Development Kit" color="#92C79A" fillcolor="#E8F0EA" shape=document style=filled]
+	N5 [label="Interfacing Classical and Quantum Computers" color="#92C79A" fillcolor="#E8F0EA" shape=vnode_shape style=filled]
+	N6 [label="Post_Quantum Cryptography" color="#9575CD" fillcolor="#EDE7F6" shape=predefinedprocess style=filled]
+	N7 [label="Quantum Computing in Drug Discovery" color="#9575CD" fillcolor="#EDE7F6" shape=multipledocuments style=filled]
+	N8 [label="Photonic Qubits" color="#92C79A" fillcolor="#E8F0EA" shape=document style=filled]
+	N9 [label="Quantum Error Correction" color="#9575CD" fillcolor="#EDE7F6" shape=diamond style=filled]
+	N10 [label="Quantum Programming Languages" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	N11 [label="Quantum Annealing" color="#F06292" fillcolor="#FCE4EC" shape=rect style=filled]
+	S0 [label="" color="#F06292" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#F06292" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Financial Modeling with Quantum Computing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Financial Modeling with Quantum Computing"
+		nest0_0 [label="Quantum Advantage Demonstration" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+		nest0_1 [label="Superconducting Qubits" color="#92C79A" fillcolor="#E8F0EA" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="solves" dir=forward]
+	N2 -> N3 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#92C79A" penwidth=1.5 style=dashed label="programs" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#9575CD" penwidth=1.5 style=dashed label="validates" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#92C79A" penwidth=1.5 style=dashed label="transmits" dir=forward]
+	N9 -> N10 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#F06292" penwidth=1.5 style=dashed label="builds" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N8 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	S0 -> N6 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S1 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_164.txt b/test/diagrams/scanned_easy/diagrams_164.txt
new file mode 100644
index 0000000000000000000000000000000000000000..843426f1f72bf30030d0f0d75458acc874816176
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_164.txt
@@ -0,0 +1,17 @@
+<Interfacing Classical and Quantum Computers, connectedTo, Post_Quantum Cryptography>
+<Interfacing Classical and Quantum Computers, connectedTo, Quantum Advantage Demonstration>
+<Photonic Qubits, transmits, Quantum Error Correction>
+<Post_Quantum Cryptography, validates, Quantum Computing in Drug Discovery>
+<Quantum Advantage Demonstration, connectedTo, Superconducting Qubits>
+<Quantum Circuit Design, programs, Quantum Software Development Kit>
+<Quantum Communication Protocols, analyzes, Interfacing Classical and Quantum Computers>
+<Quantum Communication Protocols, connectedTo, Post_Quantum Cryptography>
+<Quantum Communication Protocols, connectedTo, Quantum Programming Languages>
+<Quantum Communication Protocols, solves, Quantum Computing for AI>
+<Quantum Computing for AI, connectedTo, Quantum Circuit Design>
+<Quantum Computing in Drug Discovery, connectedTo, Photonic Qubits>
+<Quantum Error Correction, connectedTo, Quantum Programming Languages>
+<Quantum Hardware Control, connectedTo, Quantum Communication Protocols>
+<Quantum Programming Languages, builds, Quantum Annealing>
+<Quantum Software Development Kit, connectedTo, Interfacing Classical and Quantum Computers>
+<Superconducting Qubits, connectedTo, Photonic Qubits>
diff --git a/test/diagrams/scanned_easy/diagrams_165.txt b/test/diagrams/scanned_easy/diagrams_165.txt
new file mode 100644
index 0000000000000000000000000000000000000000..16cbea9cfa22397bd667ecad1ce07c59105e1bfb
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_165.txt
@@ -0,0 +1,20 @@
+<Cryogenic Systems for Qubits, models, Quantum Simulation>
+<Decoherence Mitigation, connectedTo, Quantum Communication Protocols>
+<Photonic Qubits, applies, Vacuum Systems for Trapped Ions>
+<Quantum Cloud Computing Services, connectedTo, Quantum Simulation>
+<Quantum Cloud Computing Services, connectedTo, Superconducting Qubits>
+<Quantum Cloud Computing Services, transmits, Quantum Sensing>
+<Quantum Coherence Management, connectedTo, Quantum Key Distribution>
+<Quantum Coherence Management, connectedTo, Superconducting Qubits>
+<Quantum Communication Protocols, connectedTo, Photonic Qubits>
+<Quantum Key Distribution, connectedTo, Quantum Network Development>
+<Quantum Key Distribution, connectedTo, Quantum Simulation>
+<Quantum Key Distribution, connectedTo, Superconducting Qubits>
+<Quantum Network Development, connectedTo, Photonic Qubits>
+<Quantum Sensing, connectedTo, Cryogenic Systems for Qubits>
+<Superconducting Qubits, processes, Quantum Sensing>
+<Superconducting Qubits, shares, Trapped Ion Qubits>
+<Topological Qubits, connectedTo, Quantum Cloud Computing Services>
+<Topological Qubits, connectedTo, Quantum Simulation>
+<Trapped Ion Qubits, connectedTo, Decoherence Mitigation>
+<Vacuum Systems for Trapped Ions, connectedTo, Topological Qubits>
diff --git a/test/diagrams/scanned_easy/diagrams_166.txt b/test/diagrams/scanned_easy/diagrams_166.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fa5c91d5bca2d0494afe4b7ec82ee65ca55d034c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_166.txt
@@ -0,0 +1,15 @@
+<Augmented Reality App Development, connectedTo, Gesture Recognition>
+<Augmented Reality App Development, connectedTo, Wearable AR Devices>
+<Augmented Reality App Development, navigates, Headset Development>
+<Comfort and Ergonomics Design, deploys, Neuro_VR Interfaces>
+<Data Visualization in AR or VR, connectedTo, Comfort and Ergonomics Design>
+<Facial Recognition in AR or VR, connectedTo, Data Visualization in AR or VR>
+<Gesture Recognition, audits, Hand Tracking and Interaction>
+<Hand Tracking and Interaction, connectedTo, Wearable AR Devices>
+<Mixed Reality Solutions, connectedTo, Facial Recognition in AR or VR>
+<Mixed Reality Solutions, connectedTo, Headset Development>
+<Neuro_VR Interfaces, connectedTo, Wearable AR Devices>
+<Performance Optimization, connectedTo, Mixed Reality Solutions>
+<Wearable AR Devices, connectedTo, Headset Development>
+<Wearable AR Devices, connectedTo, Performance Optimization>
+<Wearable AR Devices, controls, Mixed Reality Solutions>
diff --git a/test/diagrams/scanned_easy/diagrams_167.dot b/test/diagrams/scanned_easy/diagrams_167.dot
new file mode 100644
index 0000000000000000000000000000000000000000..685053ad8ff4e21379328c0d4cc81fd455f16c2c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_167.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=RL
+	N0 [label="Facial Recognition in AR or VR" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N1 [label="Gesture Recognition" color="#CB9BE1" fillcolor="#F2E6F5" shape=hexagon style=filled]
+	N2 [label="Training Simulations" color="#FFC085" fillcolor="#FFDAB9" shape=preparation style=filled]
+	N3 [label="Educational Content Development" color="#FFC085" fillcolor="#FFDAB9" shape=inputoutput style=filled]
+	N4 [label="Live Event Streaming in VR" color="#FFC085" fillcolor="#FFDAB9" shape=multipledocuments style=filled]
+	N5 [label="Performance Optimization" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N6 [label="Latency Reduction" color="#CB9BE1" fillcolor="#F2E6F5" shape=database style=filled]
+	N7 [label="User Interface Design" color="#FFC085" fillcolor="#FFDAB9" shape=rect style=filled]
+	N8 [label="Architectural Visualization" color="#26A69A" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N9 [label="Medical Applications" color="#26A69A" fillcolor="#E0F2F1" shape=action style=filled]
+	N10 [label="Industrial Maintenance Support" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N11 [label="Retail Experience Enhancement" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+	N12 [label="3D Model Creation" color="#FFC085" fillcolor="#FFDAB9" shape=parallelogram style=filled]
+	S0 [label="" color="#FFC085" fillcolor="#FFDAB9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Hardware Prototyping {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Hardware Prototyping"
+		nest0_0 [label="Immersive Storytelling" color="#26A69A" fillcolor="#E0F2F1" shape=diamond style=filled]
+		nest0_1 [label="Hand Tracking and Interaction" color="#FFC085" fillcolor="#FFDAB9" shape=rectangle style=filled]
+		nest0_2 [label="Multiplayer Experience Design" color="#CB9BE1" fillcolor="#F2E6F5" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#FFC085" penwidth=1.5 style=dashed label="audits" dir=forward]
+	N1 -> N2 [color="#CB9BE1" penwidth=1.5 style=dashed label="entertains" dir=forward]
+	N2 -> N3 [color="#FFC085" penwidth=1.5 style=solid label="displays" dir=forward]
+	N3 -> N4 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#CB9BE1" penwidth=1.5 style=dashed label="educates" dir=forward]
+	N8 -> N9 [color="#FFC085" penwidth=1.5 style=dashed label="measures" dir=forward]
+	N9 -> N10 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed label="renders" dir=forward]
+	nest0_0 -> nest0_1 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	N10 -> nest0_0 [color="#FFC085" penwidth=1.5 style=solid label="visualizes" dir=forward]
+	nest0_2 -> N10 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid label="projects" dir=forward]
+	N0 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N11 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_168.txt b/test/diagrams/scanned_easy/diagrams_168.txt
new file mode 100644
index 0000000000000000000000000000000000000000..174d85677416c39ab90fd87b9a6418bf0366dcbc
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_168.txt
@@ -0,0 +1,15 @@
+<Architectural Visualization, measures, User Interface Design>
+<Architectural Visualization, navigates, Tracking System Calibration>
+<Data Visualization in AR or VR, connectedTo, Virtual Tourism Experiences>
+<Data Visualization in AR or VR, connectedTo, Wearable AR Devices>
+<Environment Mapping, connectedTo, Industrial Maintenance Support>
+<Ethical Considerations in AR or VR, connectedTo, Retail Experience Enhancement>
+<Gesture Recognition, deploys, Ethical Considerations in AR or VR>
+<Industrial Maintenance Support, connectedTo, Tracking System Calibration>
+<Retail Experience Enhancement, connectedTo, Data Visualization in AR or VR>
+<Retail Experience Enhancement, displays, Architectural Visualization>
+<User Interface Design, connectedTo, Gesture Recognition>
+<User Interface Design, connectedTo, Retail Experience Enhancement>
+<User Interface Design, connectedTo, Wearable AR Devices>
+<Virtual Tourism Experiences, connectedTo, Industrial Maintenance Support>
+<Wearable AR Devices, tracks, Environment Mapping>
diff --git a/test/diagrams/scanned_easy/diagrams_169.dot b/test/diagrams/scanned_easy/diagrams_169.dot
new file mode 100644
index 0000000000000000000000000000000000000000..420c92fa1af0d2b3037a0db88cc09ac276fca673
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_169.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=LR
+	N0 [label="Anti_Cheat Development" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+	N1 [label="Voice Acting" color="#388E3C" fillcolor="#C8E6C9" shape=preparation style=filled]
+	N2 [label="Asset Creation" color="#388E3C" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N3 [label="Programming" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N4 [label="Network Code Optimization" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N5 [label="Mobile Game Development" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N6 [label="Game Performance Optimization" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N7 [label="PC Game Development" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N8 [label="Player Feedback Integration" color="#A188D0" fillcolor="#DACBE3" shape=database style=filled]
+	N9 [label="Localization" color="#388E3C" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N10 [label="Engine Development" color="#388E3C" fillcolor="#C8E6C9" shape=preparation style=filled]
+	S0 [label="" color="#388E3C" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Quality Assurance Testing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Quality Assurance Testing"
+		nest0_0 [label="User Interface Design" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+		nest0_1 [label="In_Game Economy Design" color="#388E3C" fillcolor="#C8E6C9" shape=diamond style=filled]
+		nest0_2 [label="User Experience Design" color="#388E3C" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="scores" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="creates" dir=forward]
+	N3 -> N4 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#388E3C" penwidth=1.5 style=dashed label="interacts" dir=forward]
+	nest0_0 -> nest0_1 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N2 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#FF5722" penwidth=1.5 style=solid label="distributes" dir=forward]
+	S0 -> N6 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#FF5722" penwidth=1.5 style=solid label="organizes" dir=forward]
+	N6 -> M0 [color="#FF5722" penwidth=1.5 style=solid label="coaches" dir=forward]
+	N5 -> M0 [color="#388E3C" penwidth=1.5 style=solid label="plays" dir=forward]
+	M0 -> N10 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_169.txt b/test/diagrams/scanned_easy/diagrams_169.txt
new file mode 100644
index 0000000000000000000000000000000000000000..291551b6cdca1825cfa511008977b5b878fe4e9b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_169.txt
@@ -0,0 +1,20 @@
+<Anti_Cheat Development, connectedTo, Voice Acting>
+<Asset Creation, connectedTo, Game Performance Optimization>
+<Asset Creation, creates, Programming>
+<Asset Creation, distributes, Mobile Game Development>
+<Game Performance Optimization, coaches, Engine Development>
+<Game Performance Optimization, connectedTo, Engine Development>
+<Game Performance Optimization, connectedTo, PC Game Development>
+<Game Performance Optimization, organizes, Player Feedback Integration>
+<In_Game Economy Design, connectedTo, User Experience Design>
+<Localization, interacts, Engine Development>
+<Mobile Game Development, connectedTo, Game Performance Optimization>
+<Mobile Game Development, connectedTo, User Interface Design>
+<Mobile Game Development, plays, Engine Development>
+<Network Code Optimization, connectedTo, Mobile Game Development>
+<PC Game Development, connectedTo, Player Feedback Integration>
+<Player Feedback Integration, connectedTo, Localization>
+<Programming, connectedTo, Network Code Optimization>
+<User Experience Design, connectedTo, Asset Creation>
+<User Interface Design, connectedTo, In_Game Economy Design>
+<Voice Acting, scores, Asset Creation>
diff --git a/test/diagrams/scanned_easy/diagrams_17.txt b/test/diagrams/scanned_easy/diagrams_17.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f7aefae8da291e40242a446af5ab6d32d8dcf202
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_17.txt
@@ -0,0 +1,8 @@
+<Border Control, allocates, Education Policy>
+<Business Licensing, connectedTo, Public Health Initiative>
+<Education Policy, connectedTo, Public Records Request>
+<Education Policy, reviews, Public Health Initiative>
+<Grant Distribution, subsidizes, Vehicle Registration>
+<Public Health Initiative, connectedTo, Grant Distribution>
+<Public Records Request, enacts, Business Licensing>
+<Service Registration, inspects, Border Control>
diff --git a/test/diagrams/scanned_easy/diagrams_170.txt b/test/diagrams/scanned_easy/diagrams_170.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4c44ef37416ffeab826026b9baac2f3e69e09e68
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_170.txt
@@ -0,0 +1,16 @@
+<Anti_Cheat Development, engages, Quality Assurance Testing>
+<Anti_Cheat Development, innovates, Monetization Strategy>
+<Augmented Reality Gaming, tests, Game Publishing>
+<Console Game Development, connectedTo, Quality Assurance Testing>
+<Game Balancing, connectedTo, Storytelling>
+<Game Publishing, connectedTo, Anti_Cheat Development>
+<Game Publishing, connectedTo, Game Balancing>
+<Game Publishing, connectedTo, Storytelling>
+<Player Feedback Integration, connectedTo, User Interface Design>
+<Player Progression Systems, connectedTo, Game Publishing>
+<Player Progression Systems, connectedTo, Storytelling>
+<Quality Assurance Testing, connectedTo, Augmented Reality Gaming>
+<Quality Assurance Testing, creates, Player Progression Systems>
+<Storytelling, connectedTo, Anti_Cheat Development>
+<Storytelling, connectedTo, Player Feedback Integration>
+<User Interface Design, connectedTo, Augmented Reality Gaming>
diff --git a/test/diagrams/scanned_easy/diagrams_171.dot b/test/diagrams/scanned_easy/diagrams_171.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9800187ba30d0335a28621ece1eca4356502aac4
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_171.dot
@@ -0,0 +1,38 @@
+digraph {
+	rankdir=RL
+	N0 [label="Augmented Reality Gaming" color="#BCB88A" fillcolor="#F5F5DC" shape=hexagon style=filled]
+	N1 [label="Game Performance Optimization" color="#FF9800" fillcolor="#FFE0B2" shape=rectangle style=filled]
+	N2 [label="Voice Acting" color="#BA68C8" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N3 [label="Narrative Design" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N4 [label="Asset Creation" color="#BCB88A" fillcolor="#F5F5DC" shape=vnode_shape style=filled]
+	N5 [label="Programming" color="#FF9800" fillcolor="#FFE0B2" shape=rect style=filled]
+	N6 [label="AI Behavior Programming" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N7 [label="Game Engine Customization" color="#BA68C8" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	M0 [label="" color="#FF9800" fillcolor="#FFE0B2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Player Feedback Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Player Feedback Integration"
+		nest0_0 [label="Localization" color="#BA68C8" fillcolor="#F3E5F5" shape=preparation style=filled]
+		nest0_1 [label="Community Management" color="#FF9800" fillcolor="#FFE0B2" shape=parallelogram style=filled]
+		nest0_2 [label="Game Design" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+		nest0_3 [label="Virtual Reality Gaming" color="#BA68C8" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#BCB88A" penwidth=1.5 style=solid label="markets" dir=forward]
+	N1 -> N2 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#BA68C8" penwidth=1.5 style=dashed label="manages" dir=forward]
+	N6 -> N7 [color="#BCB88A" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="competes" dir=forward]
+	nest0_1 -> nest0_2 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N4 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#000000" penwidth=1.5 style=solid label="innovates" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_172.txt b/test/diagrams/scanned_easy/diagrams_172.txt
new file mode 100644
index 0000000000000000000000000000000000000000..208af96c4b41964791aaad88bd734d0d0843da9b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_172.txt
@@ -0,0 +1,20 @@
+<Arrangement, arranges, Digital Audio Workstation Operation>
+<Crowdfunding for Music Projects, connectedTo, Merchandise Sales>
+<Crowdfunding for Music Projects, connectedTo, Recording>
+<Crowdfunding for Music Projects, promotes, Music Therapy>
+<Fan Engagement Strategy, connectedTo, Music Festival Organization>
+<Instrumental Performance, connectedTo, Crowdfunding for Music Projects>
+<Instrumental Performance, connectedTo, Music Therapy>
+<Live Sound Engineering, connectedTo, Arrangement>
+<Merchandise Sales, connectedTo, Music Therapy>
+<Music Education, produces, Music Video Production>
+<Music Festival Organization, critiques, Live Sound Engineering>
+<Music Therapy, connectedTo, Recording>
+<Music Therapy, learns, Tour Management>
+<Music Video Production, connectedTo, Fan Engagement Strategy>
+<Recording, connectedTo, Music Education>
+<Sound System Design, connectedTo, Instrumental Performance>
+<Sound System Design, connectedTo, Music Festival Organization>
+<Sound System Design, connectedTo, Tour Management>
+<Tour Management, connectedTo, Recording>
+<Tour Management, connectedTo, Sound System Design>
diff --git a/test/diagrams/scanned_easy/diagrams_173.dot b/test/diagrams/scanned_easy/diagrams_173.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7856899bec3e2dc4db94b8f95e5dbbbb698204c4
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_173.dot
@@ -0,0 +1,35 @@
+digraph {
+	rankdir=LR
+	N0 [label="Royalty Collection" color="#FFC085" fillcolor="#FFDAB9" shape=action style=filled]
+	N1 [label="Live Sound Engineering" color="#FFC085" fillcolor="#FFDAB9" shape=multipledocuments style=filled]
+	N2 [label="Sampling" color="#FFC085" fillcolor="#FFDAB9" shape=multipledocuments style=filled]
+	N3 [label="Instrumental Performance" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N4 [label="Music Festival Organization" color="#E0E0E0" fillcolor="#EBEBEB" shape=preparation style=filled]
+	N5 [label="Tour Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=multipledocuments style=filled]
+	N6 [label="Fan Engagement Strategy" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N7 [label="Music Distribution" color="#FFA726" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	S0 [label="" color="#FFC085" fillcolor="#FFDAB9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_A&R {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="A&R"
+		nest0_0 [label="Merchandise Sales" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+		nest0_1 [label="Music Production" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+		nest0_2 [label="Beat Making" color="#E0E0E0" fillcolor="#EBEBEB" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="arranges" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFA726" penwidth=1.5 style=dashed label="synthesizes" dir=forward]
+	nest0_0 -> nest0_1 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest0_0 [color="#000000" penwidth=1.5 style=solid label="therapies" dir=forward]
+	nest0_2 -> N7 [color="#FFA726" penwidth=1.5 style=dashed label="promotes" dir=forward]
+	N1 -> S0 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N3 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_174.dot b/test/diagrams/scanned_easy/diagrams_174.dot
new file mode 100644
index 0000000000000000000000000000000000000000..11ca275fee781e65781383466a9089201218534d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_174.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=TB
+	N0 [label="A&R" color="#FFC2C2" fillcolor="#FFEBEB" shape=rect style=filled]
+	N1 [label="Synthesizer Programming" color="#FFC2C2" fillcolor="#FFEBEB" shape=preparation style=filled]
+	N2 [label="Music Education" color="#C0CA33" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N3 [label="Digital Audio Workstation Operation" color="#FFC2C2" fillcolor="#FFEBEB" shape=database style=filled]
+	N4 [label="Ticketing" color="#C0CA33" fillcolor="#F9FBE7" shape=database style=filled]
+	N5 [label="Royalty Collection" color="#C0CA33" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N6 [label="Merchandise Sales" color="#FFC2C2" fillcolor="#FFEBEB" shape=database style=filled]
+	N7 [label="Music Production" color="#C0CA33" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	N8 [label="Music Licensing" color="#C0CA33" fillcolor="#F9FBE7" shape=document style=filled]
+	N9 [label="Concert Promotion" color="#FFC2C2" fillcolor="#FFEBEB" shape=multipledocuments style=filled]
+	N10 [label="Copyright Management" color="#DCE775" fillcolor="#F9FBE7" shape=diamond style=filled]
+	N11 [label="Beat Making" color="#FFC2C2" fillcolor="#FFEBEB" shape=document style=filled]
+	S0 [label="" color="#FFC2C2" fillcolor="#FFEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#DCE775" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Arrangement {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Arrangement"
+		nest0_0 [label="Streaming Platform Management" color="#FFC2C2" fillcolor="#FFEBEB" shape=hexagon style=filled]
+		nest0_1 [label="Lyric Writing" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+		nest0_2 [label="Artist Management" color="#FFC2C2" fillcolor="#FFEBEB" shape=hexagon style=filled]
+		nest0_3 [label="Sound System Design" color="#DCE775" fillcolor="#F9FBE7" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#C0CA33" penwidth=1.5 style=solid label="invests" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFC2C2" penwidth=1.5 style=dashed label="performs" dir=forward]
+	N7 -> N8 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFC2C2" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N10 -> N11 [color="#DCE775" penwidth=1.5 style=solid label="audits" dir=forward]
+	nest0_0 -> nest0_1 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#DCE775" penwidth=1.5 style=solid label="plays" dir=forward]
+	nest0_2 -> nest0_3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N6 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_174.txt b/test/diagrams/scanned_easy/diagrams_174.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c64189a2caa4e74d89e8e077764cd2f872408937
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_174.txt
@@ -0,0 +1,24 @@
+<A&R, invests, Synthesizer Programming>
+<Artist Management, connectedTo, Sound System Design>
+<Artist Management, partOf, Artist Management>
+<Concert Promotion, analyzes, Copyright Management>
+<Copyright Management, audits, Beat Making>
+<Digital Audio Workstation Operation, connectedTo, Ticketing>
+<Lyric Writing, partOf, Lyric Writing>
+<Lyric Writing, plays, Artist Management>
+<Merchandise Sales, performs, Music Production>
+<Music Education, connectedTo, Digital Audio Workstation Operation>
+<Music Education, connectedTo, Merchandise Sales>
+<Music Licensing, connectedTo, Concert Promotion>
+<Music Production, connectedTo, Music Licensing>
+<Music Production, connectedTo, Streaming Platform Management>
+<Royalty Collection, connectedTo, Merchandise Sales>
+<Sound System Design, connectedTo, Merchandise Sales>
+<Sound System Design, partOf, Sound System Design>
+<Streaming Platform Management, connectedTo, Lyric Writing>
+<Streaming Platform Management, partOf, Streaming Platform Management>
+<Synthesizer Programming, connectedTo, Music Education>
+<Ticketing, connectedTo, Merchandise Sales>
+<Ticketing, connectedTo, Music Licensing>
+<Ticketing, connectedTo, Music Production>
+<Ticketing, connectedTo, Royalty Collection>
diff --git a/test/diagrams/scanned_easy/diagrams_176.txt b/test/diagrams/scanned_easy/diagrams_176.txt
new file mode 100644
index 0000000000000000000000000000000000000000..687b1c545fa993351e8306c29d3ccd04fd44051e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_176.txt
@@ -0,0 +1,14 @@
+<Art Direction, connectedTo, Location Scouting>
+<Green Production Practices, connectedTo, Makeup and Hair Design>
+<Insurance Management, animates, Sound Recording>
+<Insurance Management, connectedTo, Makeup and Hair Design>
+<Insurance Management, films, Prop Management>
+<Legal Compliance, connectedTo, Art Direction>
+<Location Scouting, connectedTo, Makeup and Hair Design>
+<Makeup and Hair Design, connectedTo, Prop Management>
+<Set Construction, promotes, Insurance Management>
+<Sound Recording, connectedTo, Green Production Practices>
+<Sound Recording, markets, Visual Effects>
+<Sound Recording, schedules, Prop Management>
+<Sound Recording, uploads, Makeup and Hair Design>
+<Visual Effects, connectedTo, Legal Compliance>
diff --git a/test/diagrams/scanned_easy/diagrams_177.dot b/test/diagrams/scanned_easy/diagrams_177.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d37dfdc43ab8b6d164008b82662ff18f3f16a078
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_177.dot
@@ -0,0 +1,54 @@
+digraph {
+	rankdir=RL
+	N0 [label="Legal Compliance" color="#FFA726" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N1 [label="Stunt Coordination" color="#D2D2D2" fillcolor="#F0F0F0" shape=predefinedprocess style=filled]
+	N2 [label="Production Accounting" color="#DCE775" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N3 [label="Film Festival Submission" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+	N4 [label="Screenwriting Workshops" color="#FFA726" fillcolor="#FFF3E0" shape=predefinedprocess style=filled]
+	N5 [label="Lighting Design" color="#FFA726" fillcolor="#FFF3E0" shape=predefinedprocess style=filled]
+	N6 [label="Production Scheduling" color="#D2D2D2" fillcolor="#F0F0F0" shape=action style=filled]
+	N7 [label="Art Direction" color="#D2D2D2" fillcolor="#F0F0F0" shape=document style=filled]
+	N8 [label="Prop Management" color="#FFA726" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	N9 [label="Crew Management" color="#D2D2D2" fillcolor="#F0F0F0" shape=parallelogram style=filled]
+	N10 [label="Casting" color="#D2D2D2" fillcolor="#F0F0F0" shape=preparation style=filled]
+	N11 [label="Marketing and Publicity" color="#D2D2D2" fillcolor="#F0F0F0" shape=action style=filled]
+	N12 [label="Editing" color="#FFA726" fillcolor="#FFF3E0" shape=diamond style=filled]
+	N13 [label="Film Financing" color="#DCE775" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N14 [label="Makeup and Hair Design" color="#DCE775" fillcolor="#F9FBE7" shape=diamond style=filled]
+	S0 [label="" color="#DCE775" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#D2D2D2" fillcolor="#F0F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Post_production Audio {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Post_production Audio"
+		nest0_0 [label="Special Effects" color="#DCE775" fillcolor="#F9FBE7" shape=action style=filled]
+		nest0_1 [label="Audience Research" color="#DCE775" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="post_produces" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="schedules" dir=forward]
+	N4 -> N5 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="records" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#D2D2D2" penwidth=1.5 style=solid label="coordinates" dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#FFA726" penwidth=1.5 style=dashed label="casts" dir=forward]
+	nest0_0 -> nest0_1 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N13 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N11 -> S0 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#FFA726" penwidth=1.5 style=dashed label="protects" dir=forward]
+	N0 -> S1 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M0 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N14 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_179.txt b/test/diagrams/scanned_easy/diagrams_179.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f56759c5c8d196c6b3285cda35a0eff5adf8458f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_179.txt
@@ -0,0 +1,17 @@
+<Branding, connectedTo, Live Streaming Content>
+<Branding, connectedTo, Newsletter Creation>
+<Branding, connectedTo, Search Engine Optimization>
+<Content Strategy Development, connectedTo, Drafting Content>
+<Drafting Content, connectedTo, Ideation and Brainstorming>
+<E_book Writing, narrates, Content Strategy Development>
+<Editing and Proofreading, ideates, Interactive Content Development>
+<Fact_Checking, connectedTo, Branding>
+<Fact_Checking, connectedTo, E_book Writing>
+<Fact_Checking, connectedTo, Live Streaming Content>
+<Fact_Checking, hosts, Live Streaming Content>
+<Interactive Content Development, connectedTo, Photography>
+<Live Streaming Content, connectedTo, Video Scripting>
+<Newsletter Creation, designs, Live Streaming Content>
+<Photography, connectedTo, Video Scripting>
+<Search Engine Optimization, tracks, Editing and Proofreading>
+<Video Scripting, connectedTo, E_book Writing>
diff --git a/test/diagrams/scanned_easy/diagrams_180.dot b/test/diagrams/scanned_easy/diagrams_180.dot
new file mode 100644
index 0000000000000000000000000000000000000000..28e209b79461f26082ba7fca1375f086d6ce905e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_180.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=RL
+	N0 [label="Monetization Strategy" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N1 [label="Podcast Production" color="#AABEC6" fillcolor="#E0E6E9" shape=action style=filled]
+	N2 [label="Branding" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	N3 [label="Interactive Content Development" color="#AABEC6" fillcolor="#E0E6E9" shape=parallelogram style=filled]
+	N4 [label="Newsletter Creation" color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	N5 [label="User_Generated Content Curation" color="#C0CA33" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N6 [label="Influencer Collaboration" color="#AABEC6" fillcolor="#E0E6E9" shape=rect style=filled]
+	N7 [label="Search Engine Optimization" color="#C0CA33" fillcolor="#F9FBE7" shape=document style=filled]
+	N8 [label="Interview Conduct" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N9 [label="Videography" color="#AABEC6" fillcolor="#E0E6E9" shape=document style=filled]
+	M0 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Content Strategy Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Content Strategy Development"
+		nest0_0 [label="Call to Action Design" color="#AABEC6" fillcolor="#E0E6E9" shape=rect style=filled]
+		nest0_1 [label="Audience Engagement" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+		nest0_2 [label="Graphic Design" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+		nest0_3 [label="Drafting Content" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="automates" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="records" dir=forward]
+	N7 -> N8 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="supports" dir=forward]
+	nest0_0 -> nest0_1 [color="#C0CA33" penwidth=1.5 style=dashed label="promotes" dir=forward]
+	nest0_1 -> nest0_2 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#AABEC6" penwidth=1.5 style=dashed label="curates" dir=forward]
+	N2 -> nest0_0 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N4 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N4 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N3 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N8 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_180.txt b/test/diagrams/scanned_easy/diagrams_180.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fd4efb21e47e3f4a5c5497a34ce7866515a77dfa
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_180.txt
@@ -0,0 +1,19 @@
+<Audience Engagement, connectedTo, Graphic Design>
+<Branding, connectedTo, Call to Action Design>
+<Branding, connectedTo, Influencer Collaboration>
+<Branding, connectedTo, Interactive Content Development>
+<Call to Action Design, promotes, Audience Engagement>
+<Drafting Content, connectedTo, Interview Conduct>
+<Drafting Content, connectedTo, Newsletter Creation>
+<Graphic Design, curates, Drafting Content>
+<Influencer Collaboration, connectedTo, Newsletter Creation>
+<Influencer Collaboration, records, Search Engine Optimization>
+<Interactive Content Development, automates, Newsletter Creation>
+<Interactive Content Development, connectedTo, Influencer Collaboration>
+<Interview Conduct, supports, Videography>
+<Monetization Strategy, connectedTo, Podcast Production>
+<Newsletter Creation, connectedTo, User_Generated Content Curation>
+<Podcast Production, connectedTo, Branding>
+<Podcast Production, connectedTo, Influencer Collaboration>
+<Search Engine Optimization, connectedTo, Interview Conduct>
+<User_Generated Content Curation, connectedTo, Influencer Collaboration>
diff --git a/test/diagrams/scanned_easy/diagrams_181.dot b/test/diagrams/scanned_easy/diagrams_181.dot
new file mode 100644
index 0000000000000000000000000000000000000000..30c283530816e1e072548088759f39bd3db5db37
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_181.dot
@@ -0,0 +1,40 @@
+digraph {
+	rankdir=BT
+	N0 [label="Text Analytics" color="#6FE1D5" fillcolor="#C9EFEC" shape=multipledocuments style=filled]
+	N1 [label="Predictive Analytics" color="#6FE1D5" fillcolor="#C9EFEC" shape=parallelogram style=filled]
+	N2 [label="Data Cleaning" color="#CDDC39" fillcolor="#E6EE9C" shape=predefinedprocess style=filled]
+	N3 [label="Time Series Forecasting" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+	N4 [label="ETL Process Management" color="#388E3C" fillcolor="#F1F8E9" shape=preparation style=filled]
+	N5 [label="Marketing Campaign Analysis" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+	N6 [label="Operational Efficiency Metrics" color="#388E3C" fillcolor="#F1F8E9" shape=document style=filled]
+	N7 [label="Financial Data Analysis" color="#6FE1D5" fillcolor="#C9EFEC" shape=predefinedprocess style=filled]
+	N8 [label="Machine Learning Integration" color="#CDDC39" fillcolor="#E6EE9C" shape=rect style=filled]
+	S1 [label="" color="#CDDC39" fillcolor="#E6EE9C" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#388E3C" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Business User Training on Analytics {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Business User Training on Analytics"
+		nest0_0 [label="Customer Analytics" color="#6FE1D5" fillcolor="#C9EFEC" shape=diamond style=filled]
+		nest0_1 [label="Data Collection" color="#CDDC39" fillcolor="#E6EE9C" shape=database style=filled]
+		nest0_2 [label="Cloud_based Data Platforms" color="#388E3C" fillcolor="#F1F8E9" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CDDC39" penwidth=1.5 style=solid label="models" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#CDDC39" penwidth=1.5 style=dashed label="measures" dir=forward]
+	N7 -> N8 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#6FE1D5" penwidth=1.5 style=dashed label="correlates" dir=forward]
+	nest0_2 -> N6 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S1 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#6FE1D5" penwidth=1.5 style=dashed label="reports" dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N3 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_182.txt b/test/diagrams/scanned_easy/diagrams_182.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d15d45d3db0303e26865c8ac8a07ced373131636
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_182.txt
@@ -0,0 +1,21 @@
+<Business User Training on Analytics, connectedTo, Healthcare Data Analysis>
+<Cloud_based Data Platforms, connectedTo, Data Storytelling>
+<Cloud_based Data Platforms, educates, Exploratory Data Analysis>
+<Data Cleaning, audits, Prescriptive Analytics>
+<Data Cleaning, connectedTo, Data Storytelling>
+<Data Mining, queries, Data Transformation>
+<Data Storytelling, connectedTo, HR Data Analytics>
+<Data Transformation, connectedTo, Predictive Analytics>
+<Exploratory Data Analysis, connectedTo, Data Cleaning>
+<HR Data Analytics, connectedTo, Business User Training on Analytics>
+<Healthcare Data Analysis, connectedTo, Web Analytics>
+<Predictive Analytics, connectedTo, Business User Training on Analytics>
+<Prescriptive Analytics, connectedTo, Business User Training on Analytics>
+<Prescriptive Analytics, connectedTo, Data Mining>
+<Prescriptive Analytics, connectedTo, Data Storytelling>
+<Prescriptive Analytics, connectedTo, Sales Performance Analysis>
+<Prescriptive Analytics, researches, Web Analytics>
+<Report Generation, connectedTo, Cloud_based Data Platforms>
+<Sales Performance Analysis, connectedTo, Social Media Analytics>
+<Social Media Analytics, connectedTo, Data Security Best Practices>
+<Web Analytics, connectedTo, Sales Performance Analysis>
diff --git a/test/diagrams/scanned_easy/diagrams_186.dot b/test/diagrams/scanned_easy/diagrams_186.dot
new file mode 100644
index 0000000000000000000000000000000000000000..14443dc7333d0a4f7f1c3c5c2c79a6080258c09f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_186.dot
@@ -0,0 +1,52 @@
+digraph {
+	rankdir=RL
+	N0 [label="OLAP Cube Creation" color="#BDBDBD" fillcolor="#F5F5F5" shape=inputoutput style=filled]
+	N1 [label="Competitive Analysis" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N2 [label="Real_time BI Dashboards" color="#00BCD4" fillcolor="#B2EBF2" shape=multipledocuments style=filled]
+	N3 [label="Prescriptive Analytics Implementation" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	N4 [label="Executive Summary Reporting" color="#C0CA33" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N5 [label="Data Mart Design" color="#00BCD4" fillcolor="#B2EBF2" shape=document style=filled]
+	N6 [label="BI Platform Administration" color="#C0CA33" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N7 [label="KPI Definition" color="#BDBDBD" fillcolor="#F5F5F5" shape=action style=filled]
+	N8 [label="Business Process Improvement" color="#C0CA33" fillcolor="#F9FBE7" shape=document style=filled]
+	N9 [label="Data Source Integration" color="#00BCD4" fillcolor="#B2EBF2" shape=predefinedprocess style=filled]
+	N10 [label="Data Governance Policies" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N11 [label="Customer Behavior Insights" color="#00BCD4" fillcolor="#B2EBF2" shape=parallelogram style=filled]
+	S0 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Data Modeling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Data Modeling"
+		nest0_0 [label="ETL Development" color="#00BCD4" fillcolor="#B2EBF2" shape=ellipse style=filled]
+		nest0_1 [label="Master Data Management" color="#C0CA33" fillcolor="#F9FBE7" shape=rectangle style=filled]
+		nest0_2 [label="Self_Service BI Tools" color="#00BCD4" fillcolor="#B2EBF2" shape=rectangle style=filled]
+		nest0_3 [label="Financial Performance Reporting" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="audits" dir=forward]
+	N10 -> N11 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#00BCD4" penwidth=1.5 style=solid label="deploys" dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid label="extracts" dir=forward]
+	N7 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N6 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#BDBDBD" penwidth=1.5 style=solid label="strategies" dir=forward]
+	N2 -> M0 [color="#00BCD4" penwidth=1.5 style=dashed label="evaluates" dir=forward]
+	N6 -> M0 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=dashed label="processes" dir=forward]
+	M1 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_186.txt b/test/diagrams/scanned_easy/diagrams_186.txt
new file mode 100644
index 0000000000000000000000000000000000000000..45718cdf053bddea187b0f3d7744f6b35a676edb
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_186.txt
@@ -0,0 +1,22 @@
+<BI Platform Administration, connectedTo, Data Source Integration>
+<BI Platform Administration, connectedTo, KPI Definition>
+<Business Process Improvement, connectedTo, Data Source Integration>
+<Competitive Analysis, connectedTo, Real_time BI Dashboards>
+<Data Governance Policies, connectedTo, Customer Behavior Insights>
+<Data Mart Design, connectedTo, BI Platform Administration>
+<Data Source Integration, audits, Data Governance Policies>
+<ETL Development, connectedTo, Master Data Management>
+<Executive Summary Reporting, connectedTo, Data Mart Design>
+<Financial Performance Reporting, connectedTo, BI Platform Administration>
+<KPI Definition, connectedTo, Business Process Improvement>
+<KPI Definition, connectedTo, Data Governance Policies>
+<KPI Definition, connectedTo, ETL Development>
+<Master Data Management, deploys, Self_Service BI Tools>
+<OLAP Cube Creation, connectedTo, Business Process Improvement>
+<OLAP Cube Creation, connectedTo, Competitive Analysis>
+<OLAP Cube Creation, processes, Data Governance Policies>
+<OLAP Cube Creation, strategies, Data Source Integration>
+<Prescriptive Analytics Implementation, connectedTo, Executive Summary Reporting>
+<Real_time BI Dashboards, connectedTo, Prescriptive Analytics Implementation>
+<Real_time BI Dashboards, evaluates, Data Source Integration>
+<Self_Service BI Tools, extracts, Financial Performance Reporting>
diff --git a/test/diagrams/scanned_easy/diagrams_189.dot b/test/diagrams/scanned_easy/diagrams_189.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3f884653e5084a83d236c9cf8dd4c5c64dcbdb8e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_189.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=BT
+	N0 [label="Marketing Analytics" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+	N1 [label="Video Marketing" color="#4FC3F7" fillcolor="#E1F5FE" shape=document style=filled]
+	N2 [label="Conversion Rate Optimization" color="#4FC3F7" fillcolor="#E1F5FE" shape=rectangle style=filled]
+	N3 [label="A or B Testing for Marketing" color="#73C6BC" fillcolor="#D0EFEE" shape=database style=filled]
+	N4 [label="Market Research" color="#73C6BC" fillcolor="#D0EFEE" shape=predefinedprocess style=filled]
+	N5 [label="Affiliate Marketing" color="#607D8B" fillcolor="#CFD8DC" shape=inputoutput style=filled]
+	N6 [label="Event Marketing" color="#4FC3F7" fillcolor="#E1F5FE" shape=rect style=filled]
+	N7 [label="Loyalty Programs" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N8 [label="Brand Strategy Development" color="#607D8B" fillcolor="#CFD8DC" shape=preparation style=filled]
+	N9 [label="Influencer Marketing" color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+	N10 [label="Personalization Strategies" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+	N11 [label="Target Audience Identification" color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+	N12 [label="Campaign Performance Tracking" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	N13 [label="Telemarketing" color="#607D8B" fillcolor="#CFD8DC" shape=multipledocuments style=filled]
+	S1 [label="" color="#607D8B" fillcolor="#CFD8DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#607D8B" fillcolor="#CFD8DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Partnership Marketing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Partnership Marketing"
+		nest0_0 [label="Search Engine Marketing" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+		nest0_1 [label="Experiential Marketing" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	}
+	N0 -> N1 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#4FC3F7" penwidth=1.5 style=dashed label="optimizes SEO" dir=forward]
+	N6 -> N7 [color="#607D8B" penwidth=1.5 style=solid label="automates tasks" dir=forward]
+	N7 -> N8 [color="#607D8B" penwidth=1.5 style=solid label="manages reputation" dir=forward]
+	N8 -> N9 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed label="monitors competitors" dir=forward]
+	N11 -> N12 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N10 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N12 [color="#000000" penwidth=1.5 style=dashed label="handles PR" dir=forward]
+	N7 -> S1 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M0 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N9 -> M0 [color="#607D8B" penwidth=1.5 style=solid label="manages affiliates" dir=forward]
+	M0 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_189.txt b/test/diagrams/scanned_easy/diagrams_189.txt
new file mode 100644
index 0000000000000000000000000000000000000000..47a7fbd4e918bc0bb794de858ad788fd7c272293
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_189.txt
@@ -0,0 +1,20 @@
+<A or B Testing for Marketing, connectedTo, Market Research>
+<Affiliate Marketing, optimizes SEO, Event Marketing>
+<Brand Strategy Development, connectedTo, Influencer Marketing>
+<Campaign Performance Tracking, connectedTo, Telemarketing>
+<Conversion Rate Optimization, connectedTo, A or B Testing for Marketing>
+<Event Marketing, automates tasks, Loyalty Programs>
+<Experiential Marketing, handles PR, Campaign Performance Tracking>
+<Influencer Marketing, connectedTo, Personalization Strategies>
+<Influencer Marketing, manages affiliates, Campaign Performance Tracking>
+<Loyalty Programs, connectedTo, Campaign Performance Tracking>
+<Loyalty Programs, connectedTo, Personalization Strategies>
+<Loyalty Programs, connectedTo, Target Audience Identification>
+<Loyalty Programs, manages reputation, Brand Strategy Development>
+<Market Research, connectedTo, Affiliate Marketing>
+<Marketing Analytics, connectedTo, Video Marketing>
+<Personalization Strategies, connectedTo, Search Engine Marketing>
+<Personalization Strategies, monitors competitors, Target Audience Identification>
+<Search Engine Marketing, connectedTo, Experiential Marketing>
+<Target Audience Identification, connectedTo, Campaign Performance Tracking>
+<Video Marketing, connectedTo, Conversion Rate Optimization>
diff --git a/test/diagrams/scanned_easy/diagrams_191.dot b/test/diagrams/scanned_easy/diagrams_191.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e7330909bf91986c23365f50d6d91440070c502c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_191.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=BT
+	N0 [label="Search Engine Ads" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+	N1 [label="Competitor Ad Analysis" color="#607D8B" fillcolor="#CFD8DC" shape=multipledocuments style=filled]
+	N2 [label="Performance Tracking" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N3 [label="Ad Network Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	N4 [label="Social Media Ads" color="#A2D0FF" fillcolor="#E8F0FF" shape=predefinedprocess style=filled]
+	N5 [label="Retargeting Campaigns" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	N6 [label="Radio Advertising" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+	S1 [label="" color="#607D8B" fillcolor="#CFD8DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#AABEC6" fillcolor="#E0E6E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#607D8B" fillcolor="#CFD8DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Native Advertising {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Native Advertising"
+		nest0_0 [label="Outdoor Advertising" color="#A2D0FF" fillcolor="#E8F0FF" shape=diamond style=filled]
+		nest0_1 [label="Programmatic Advertising" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+		nest0_2 [label="Conversion Tracking" color="#AABEC6" fillcolor="#E0E6E9" shape=diamond style=filled]
+		nest0_3 [label="Visual Design for Ads" color="#A2D0FF" fillcolor="#E8F0FF" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A2D0FF" penwidth=1.5 style=solid label="detects fraud" dir=forward]
+	N3 -> N4 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="digital advertising" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N4 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N2 -> S1 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#607D8B" penwidth=1.5 style=solid label="targets psychographics" dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N5 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_193.dot b/test/diagrams/scanned_easy/diagrams_193.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e8d9eb89010484bb671173c416864a9d5a7fe2aa
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_193.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=TB
+	N0 [label="Regulatory Compliance for Blockchain" color="#7E57C2" fillcolor="#EDE7F6" shape=multipledocuments style=filled]
+	N1 [label="Identity Verification on Blockchain" color="#F06292" fillcolor="#FCE4EC" shape=preparation style=filled]
+	N2 [label="Private Blockchain Implementation" color="#F06292" fillcolor="#FCE4EC" shape=database style=filled]
+	N3 [label="Security Token Offerings" color="#7E57C2" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	N4 [label="Gaming on Blockchain" color="#D2D2D2" fillcolor="#F0F0F0" shape=diamond style=filled]
+	N5 [label="Initial Coin Offerings" color="#D2D2D2" fillcolor="#F0F0F0" shape=action style=filled]
+	N6 [label="Decentralized Finance Protocols" color="#F06292" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N7 [label="Security Auditing for Blockchains" color="#D2D2D2" fillcolor="#F0F0F0" shape=database style=filled]
+	N8 [label="Smart Contract Development" color="#7E57C2" fillcolor="#EDE7F6" shape=diamond style=filled]
+	N9 [label="Public Blockchain Deployment" color="#7E57C2" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+	S0 [label="" color="#D2D2D2" fillcolor="#F0F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#F06292" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Distributed Ledger Technology {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Distributed Ledger Technology"
+		nest0_0 [label="Blockchain Node Operation" color="#F06292" fillcolor="#FCE4EC" shape=multipledocuments style=filled]
+		nest0_1 [label="Sharding Implementation" color="#D2D2D2" fillcolor="#F0F0F0" shape=predefinedprocess style=filled]
+		nest0_2 [label="Scalability Solutions" color="#7E57C2" fillcolor="#EDE7F6" shape=database style=filled]
+	}
+	N0 -> N1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#D2D2D2" penwidth=1.5 style=dashed label="launches STOs" dir=forward]
+	N3 -> N4 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#D2D2D2" penwidth=1.5 style=dashed label="integrates systems" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed label="operates nodes" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_0 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N3 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N5 -> S0 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#7E57C2" penwidth=1.5 style=dashed label="governs DAOs" dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed label="mines blocks" dir=forward]
+	N0 -> M0 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid label="builds enterprise solutions" dir=forward]
+	M0 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_195.dot b/test/diagrams/scanned_easy/diagrams_195.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1b9e5579f0aa3e5b8ad08bebb4dcf42fe5d0d5f2
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_195.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=TB
+	N0 [label="Tokenomics Design" color="#BDBDBD" fillcolor="#F5F5F5" shape=action style=filled]
+	N1 [label="Zero_Knowledge Proofs" color="#90A4AE" fillcolor="#ECEFF1" shape=predefinedprocess style=filled]
+	N2 [label="Private Blockchain Implementation" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N3 [label="Identity Verification on Blockchain" color="#BDBDBD" fillcolor="#F5F5F5" shape=rect style=filled]
+	N4 [label="Smart Contract Development" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+	N5 [label="Transaction Verification" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+	N6 [label="Decentralized Network Design" color="#90A4AE" fillcolor="#ECEFF1" shape=inputoutput style=filled]
+	N7 [label="Voting Systems on Blockchain" color="#4CAF50" fillcolor="#C8E6C9" shape=action style=filled]
+	N8 [label="Sharding Implementation" color="#BDBDBD" fillcolor="#F5F5F5" shape=multipledocuments style=filled]
+	N9 [label="Enterprise Blockchain Solutions" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+	N10 [label="Gaming on Blockchain" color="#BDBDBD" fillcolor="#F5F5F5" shape=preparation style=filled]
+	N11 [label="Governance Models for Blockchains" color="#90A4AE" fillcolor="#ECEFF1" shape=multipledocuments style=filled]
+	S0 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Consensus Mechanism Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Consensus Mechanism Development"
+		nest0_0 [label="Intellectual Property Management" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+		nest0_1 [label="Security Token Offerings" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+		nest0_2 [label="Mining Operations" color="#90A4AE" fillcolor="#ECEFF1" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="sets up environments" dir=forward]
+	N2 -> N3 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#4CAF50" penwidth=1.5 style=dashed label="operates nodes" dir=forward]
+	N6 -> N7 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#BDBDBD" penwidth=1.5 style=solid label="implements algorithms" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#90A4AE" penwidth=1.5 style=solid label="scales systems" dir=forward]
+	N2 -> nest0_0 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N3 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid label="manages networks" dir=forward]
+	M0 -> N6 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_198.txt b/test/diagrams/scanned_easy/diagrams_198.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4d1aa7d7385617d253a963d928c17a4ae35ea308
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_198.txt
@@ -0,0 +1,19 @@
+<Airdrop Campaigns, facilitates trades, Stablecoin Design>
+<Cold Storage Solutions, stakes assets, Mining Algorithm Design>
+<Cryptocurrency Education, connectedTo, Airdrop Campaigns>
+<Cryptocurrency Trading Bots, connectedTo, Wallet Development>
+<Exchange Listing, connectedTo, Interoperability Solutions>
+<Interoperability Solutions, manages TGEs, Transaction Processing>
+<Market Analysis, borrows capital, Cryptocurrency Trading Bots>
+<Market Analysis, connectedTo, Staking>
+<Mining Algorithm Design, connectedTo, Exchange Listing>
+<Mining Algorithm Design, connectedTo, Staking>
+<Portfolio Management, lends funds, Regulatory Compliance>
+<Regulatory Compliance, connectedTo, Transaction Processing>
+<Staking, connectedTo, Token Generation Event>
+<Token Generation Event, performs KYCs, Portfolio Management>
+<Transaction Processing, connectedTo, Market Analysis>
+<Wallet Development, audits security, Stablecoin Design>
+<Wallet Development, connectedTo, Airdrop Campaigns>
+<Wallet Development, connectedTo, Web3 Integration>
+<Web3 Integration, connectedTo, Cryptocurrency Education>
diff --git a/test/diagrams/scanned_easy/diagrams_2.dot b/test/diagrams/scanned_easy/diagrams_2.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fe30c186338d6775f5aa30c233603e7d125a665c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_2.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=BT
+	N0 [label="Pharmacy Order" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+	N1 [label="Physical Examination" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N2 [label="Discharge" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	N3 [label="Telemedicine Consultation" color="#BDBDBD" fillcolor="#F5F5F5" shape=preparation style=filled]
+	N4 [label="Case Review" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+	N5 [label="Genetic Counseling" color="#2196F3" fillcolor="#BBDEFB" shape=parallelogram style=filled]
+	N6 [label="Medication Dispensing" color="#BDBDBD" fillcolor="#F5F5F5" shape=rect style=filled]
+	N7 [label="Epidemiological Tracking" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N8 [label="Emergency Response" color="#BDBDBD" fillcolor="#F5F5F5" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="researches" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="educates" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#4285F4" penwidth=1.5 style=dashed label="tests" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="prescribes" dir=forward]
+	N6 -> N7 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#4285F4" penwidth=1.5 style=solid label="surveys" dir=forward]
+	N0 -> N7 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_2.txt b/test/diagrams/scanned_easy/diagrams_2.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a451228ba5066a1a3bde351bb14cdd5e7bfb1cc9
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_2.txt
@@ -0,0 +1,9 @@
+<Case Review, tests, Genetic Counseling>
+<Discharge, connectedTo, Telemedicine Consultation>
+<Epidemiological Tracking, surveys, Emergency Response>
+<Genetic Counseling, prescribes, Medication Dispensing>
+<Medication Dispensing, connectedTo, Epidemiological Tracking>
+<Pharmacy Order, connectedTo, Epidemiological Tracking>
+<Pharmacy Order, researches, Physical Examination>
+<Physical Examination, educates, Discharge>
+<Telemedicine Consultation, connectedTo, Case Review>
diff --git a/test/diagrams/scanned_easy/diagrams_20.dot b/test/diagrams/scanned_easy/diagrams_20.dot
new file mode 100644
index 0000000000000000000000000000000000000000..deccf9acecf03d0e2e9d07f237b512e9af75ba5e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_20.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=RL
+	N0 [label="Countdown Sequence" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N1 [label="Flight Simulation" color="#92C79A" fillcolor="#E8F0EA" shape=database style=filled]
+	N2 [label="Mission Planning" color="#388E3C" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N3 [label="Emergency Protocols" color="#388E3C" fillcolor="#C8E6C9" shape=document style=filled]
+	N4 [label="Extravehicular Activity Planning" color="#F06292" fillcolor="#FCE4EC" shape=action style=filled]
+	N5 [label="New Material Development" color="#388E3C" fillcolor="#C8E6C9" shape=action style=filled]
+	N6 [label="Hypersonic Flight Testing" color="#388E3C" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N7 [label="Launch Execution" color="#388E3C" fillcolor="#C8E6C9" shape=diamond style=filled]
+	N0 -> N1 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="reboots" dir=forward]
+	N3 -> N4 [color="#92C79A" penwidth=1.5 style=solid label="communicates" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="operates" dir=forward]
+	N6 -> N1 [color="#F06292" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_20.txt b/test/diagrams/scanned_easy/diagrams_20.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5736f9bdf1baa957a587ea758279e210a4e9f21d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_20.txt
@@ -0,0 +1,8 @@
+<Countdown Sequence, connectedTo, Flight Simulation>
+<Emergency Protocols, communicates, Extravehicular Activity Planning>
+<Extravehicular Activity Planning, connectedTo, New Material Development>
+<Flight Simulation, connectedTo, Mission Planning>
+<Hypersonic Flight Testing, analyzes, Flight Simulation>
+<Hypersonic Flight Testing, operates, Launch Execution>
+<Mission Planning, reboots, Emergency Protocols>
+<New Material Development, connectedTo, Hypersonic Flight Testing>
diff --git a/test/diagrams/scanned_easy/diagrams_200.dot b/test/diagrams/scanned_easy/diagrams_200.dot
new file mode 100644
index 0000000000000000000000000000000000000000..858c156625cb82d0d986a74e355866d1942b2fdd
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_200.dot
@@ -0,0 +1,33 @@
+digraph {
+	rankdir=LR
+	N0 [label="Intellectual Property Protection" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N1 [label="Campaign Creation" color="#61CAC3" fillcolor="#C2E8E6" shape=rect style=filled]
+	N2 [label="International Crowdfunding" color="#61CAC3" fillcolor="#C2E8E6" shape=multipledocuments style=filled]
+	N3 [label="Platform Selection" color="#C2B2F0" fillcolor="#EFE6FF" shape=action style=filled]
+	N4 [label="Manufacturing Planning" color="#C2B2F0" fillcolor="#EFE6FF" shape=inputoutput style=filled]
+	N5 [label="Payment Processing" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	N6 [label="Post_Campaign Updates" color="#C2B2F0" fillcolor="#EFE6FF" shape=database style=filled]
+	subgraph cluster_Escrow Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Escrow Management"
+		nest0_0 [label="Email List Building" color="#C2B2F0" fillcolor="#EFE6FF" shape=vnode_shape style=filled]
+		nest0_1 [label="Platform Fee Management" color="#FFB2A5" fillcolor="#FFDCD6" shape=parallelogram style=filled]
+		nest0_2 [label="Marketing Strategy" color="#61CAC3" fillcolor="#C2E8E6" shape=hexagon style=filled]
+		nest0_3 [label="Product Development Lifecycle" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#61CAC3" penwidth=1.5 style=dashed label="communicates updates" dir=forward]
+	N1 -> N2 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFB2A5" penwidth=1.5 style=solid label="manages shareholders" dir=forward]
+	N3 -> N4 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#C2B2F0" penwidth=1.5 style=solid label="manages manufacturing" dir=forward]
+	nest0_1 -> nest0_2 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N1 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed label="plans promotions" dir=forward]
+	N6 -> N4 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N5 [color="#FFB2A5" penwidth=1.5 style=dashed label="manages escrows" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_200.txt b/test/diagrams/scanned_easy/diagrams_200.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ff17ec864e540f38ddd21ff6c57b2d8dfb268662
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_200.txt
@@ -0,0 +1,14 @@
+<Campaign Creation, connectedTo, International Crowdfunding>
+<Campaign Creation, manages escrows, Payment Processing>
+<Campaign Creation, plans promotions, Marketing Strategy>
+<Email List Building, manages manufacturing, Platform Fee Management>
+<Intellectual Property Protection, communicates updates, Campaign Creation>
+<International Crowdfunding, connectedTo, Email List Building>
+<International Crowdfunding, manages shareholders, Platform Selection>
+<Manufacturing Planning, connectedTo, Payment Processing>
+<Marketing Strategy, connectedTo, Product Development Lifecycle>
+<Payment Processing, connectedTo, Post_Campaign Updates>
+<Platform Fee Management, connectedTo, Marketing Strategy>
+<Platform Selection, connectedTo, Manufacturing Planning>
+<Post_Campaign Updates, connectedTo, Manufacturing Planning>
+<Product Development Lifecycle, connectedTo, Campaign Creation>
diff --git a/test/diagrams/scanned_easy/diagrams_201.dot b/test/diagrams/scanned_easy/diagrams_201.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7b72f6c6345bd87051c8abe2eea2f961b24af41d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_201.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=RL
+	N0 [label="Reward_Based Crowdfunding" color="#BCB88A" fillcolor="#F5F5DC" shape=multipledocuments style=filled]
+	N1 [label="Press Outreach" color="#BCB88A" fillcolor="#F5F5DC" shape=preparation style=filled]
+	N2 [label="Intellectual Property Protection" color="#BCB88A" fillcolor="#F5F5DC" shape=predefinedprocess style=filled]
+	N3 [label="International Crowdfunding" color="#FFF176" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N4 [label="Payment Processing" color="#BCB88A" fillcolor="#F5F5DC" shape=diamond style=filled]
+	N5 [label="Platform Selection" color="#A2D0FF" fillcolor="#E8F0FF" shape=preparation style=filled]
+	N6 [label="Customer Support for Backers" color="#BCB88A" fillcolor="#F5F5DC" shape=diamond style=filled]
+	N7 [label="Backer Communication" color="#FFF176" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N8 [label="Investor Verification" color="#FFF176" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N9 [label="Due Diligence for Projects" color="#FFF176" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N10 [label="Marketing Strategy" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+	N11 [label="Success Fee Structures" color="#BCB88A" fillcolor="#F5F5DC" shape=database style=filled]
+	N12 [label="Tax Implications of Crowdfunding" color="#BCB88A" fillcolor="#F5F5DC" shape=inputoutput style=filled]
+	S0 [label="" color="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Campaign Creation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Campaign Creation"
+		nest0_0 [label="Logistics for Rewards" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+		nest0_1 [label="Pitch Deck Preparation" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+		nest0_2 [label="Reward Tier Design" color="#A2D0FF" fillcolor="#E8F0FF" shape=document style=filled]
+		nest0_3 [label="Real Estate Crowdfunding" color="#A2D0FF" fillcolor="#E8F0FF" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#A2D0FF" penwidth=1.5 style=dashed label="calculates taxes" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#BCB88A" penwidth=1.5 style=dashed label="prepares pitches" dir=forward]
+	N10 -> N11 [color="#BCB88A" penwidth=1.5 style=solid label="vets projects" dir=forward]
+	N11 -> N12 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFF176" penwidth=1.5 style=solid label="measures success" dir=forward]
+	nest0_1 -> nest0_2 [color="#A2D0FF" penwidth=1.5 style=dashed label="generates reports" dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid label="plans promotions" dir=forward]
+	N7 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed label="funds real estate" dir=forward]
+	nest0_3 -> N3 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N7 -> S0 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#A2D0FF" penwidth=1.5 style=dashed label="facilitates international campaigns" dir=forward]
+	N0 -> M0 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N10 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N12 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_201.txt b/test/diagrams/scanned_easy/diagrams_201.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1a9e4c954e157aebed62a7eeee85cd65381d563f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_201.txt
@@ -0,0 +1,21 @@
+<Backer Communication, connectedTo, Due Diligence for Projects>
+<Backer Communication, connectedTo, Investor Verification>
+<Backer Communication, facilitates international campaigns, Success Fee Structures>
+<Backer Communication, funds real estate, Logistics for Rewards>
+<Customer Support for Backers, calculates taxes, Backer Communication>
+<Due Diligence for Projects, prepares pitches, Marketing Strategy>
+<Intellectual Property Protection, connectedTo, International Crowdfunding>
+<International Crowdfunding, connectedTo, Payment Processing>
+<Investor Verification, connectedTo, Due Diligence for Projects>
+<Logistics for Rewards, measures success, Pitch Deck Preparation>
+<Marketing Strategy, connectedTo, Tax Implications of Crowdfunding>
+<Marketing Strategy, vets projects, Success Fee Structures>
+<Payment Processing, connectedTo, Platform Selection>
+<Pitch Deck Preparation, generates reports, Reward Tier Design>
+<Platform Selection, connectedTo, Customer Support for Backers>
+<Press Outreach, connectedTo, Intellectual Property Protection>
+<Real Estate Crowdfunding, connectedTo, International Crowdfunding>
+<Reward Tier Design, plans promotions, Real Estate Crowdfunding>
+<Reward_Based Crowdfunding, connectedTo, Press Outreach>
+<Reward_Based Crowdfunding, connectedTo, Tax Implications of Crowdfunding>
+<Success Fee Structures, connectedTo, Tax Implications of Crowdfunding>
diff --git a/test/diagrams/scanned_easy/diagrams_202.dot b/test/diagrams/scanned_easy/diagrams_202.dot
new file mode 100644
index 0000000000000000000000000000000000000000..74f870500ab36a5e612853fcebc6db471faf7110
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_202.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=BT
+	N0 [label="Connectivity Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=database style=filled]
+	N1 [label="User Interface for IoT Apps" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N2 [label="Agricultural IoT" color="#4DD0E1" fillcolor="#C9F0F0" shape=box style=filled]
+	N3 [label="Smart Home Devices" color="#FFEB3B" fillcolor="#FFF9C4" shape=database style=filled]
+	N4 [label="Smart Manufacturing" color="#FFEB3B" fillcolor="#FFF9C4" shape=multipledocuments style=filled]
+	N5 [label="Environmental Monitoring" color="#FFCC7A" fillcolor="#FFF6D9" shape=parallelogram style=filled]
+	N6 [label="Cloud Platform Integration" color="#4DD0E1" fillcolor="#C9F0F0" shape=hexagon style=filled]
+	N7 [label="Connected Vehicles" color="#FFCC7A" fillcolor="#FFF6D9" shape=document style=filled]
+	N8 [label="Over_the_Air Updates" color="#FFEB3B" fillcolor="#FFF9C4" shape=document style=filled]
+	N9 [label="API Development for IoT" color="#4DD0E1" fillcolor="#C9F0F0" shape=parallelogram style=filled]
+	S0 [label="" color="#FFCC7A" fillcolor="#FFF6D9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFCC7A" fillcolor="#FFF6D9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#4DD0E1" fillcolor="#C9F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFEB3B" fillcolor="#FFF9C4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Real_time Data Streaming {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Real_time Data Streaming"
+		nest0_0 [label="Data Privacy in IoT" color="#4DD0E1" fillcolor="#C9F0F0" shape=rectangle style=filled]
+		nest0_1 [label="Data Analysis in Cloud" color="#FFCC7A" fillcolor="#FFF6D9" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFCC7A" penwidth=1.5 style=dashed label="improves retail" dir=forward]
+	N3 -> N4 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed label="analyzes insights" dir=forward]
+	N5 -> nest0_0 [color="#FFCC7A" penwidth=1.5 style=dashed label="monitors healthcare" dir=forward]
+	nest0_1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N2 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FFEB3B" penwidth=1.5 style=solid label="streams data" dir=forward]
+	N3 -> S1 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#FFCC7A" penwidth=1.5 style=solid label="designs UIs" dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#FFCC7A" penwidth=1.5 style=dashed label="updates firmware" dir=forward]
+	N0 -> M1 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N9 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_203.dot b/test/diagrams/scanned_easy/diagrams_203.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4856f78800cb8c758b87192f22d536bc4aee8160
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_203.dot
@@ -0,0 +1,36 @@
+digraph {
+	rankdir=RL
+	N0 [label="Industrial IoT" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N1 [label="Connected Vehicles" color="#FFE470" fillcolor="#FFFAE0" shape=inputoutput style=filled]
+	N2 [label="Device Management" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N3 [label="User Interface for IoT Apps" color="#FFC085" fillcolor="#FFDAB9" shape=rectangle style=filled]
+	N4 [label="Energy Management Systems" color="#FFC085" fillcolor="#FFDAB9" shape=parallelogram style=filled]
+	N5 [label="Transportation IoT" color="#FF5722" fillcolor="#FFCCBC" shape=rectangle style=filled]
+	N6 [label="Sensor Integration" color="#FF5722" fillcolor="#FFCCBC" shape=database style=filled]
+	N7 [label="AI at the Edge" color="#FFE470" fillcolor="#FFFAE0" shape=parallelogram style=filled]
+	S1 [label="" color="#FFE470" fillcolor="#FFFAE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Smart City Sensors {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Smart City Sensors"
+		nest0_0 [label="Compliance with IoT Regulations" color="#FFC085" fillcolor="#FFDAB9" shape=preparation style=filled]
+		nest0_1 [label="Security Implementation" color="#FFE470" fillcolor="#FFFAE0" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFC085" penwidth=1.5 style=solid label="automates homes" dir=forward]
+	N3 -> N4 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFC085" penwidth=1.5 style=solid label="develops solutions" dir=forward]
+	nest0_0 -> nest0_1 [color="#FF5722" penwidth=1.5 style=solid label="manages power" dir=forward]
+	N1 -> nest0_0 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N6 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N2 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FF5722" penwidth=1.5 style=dashed label="integrates AI" dir=forward]
+	N0 -> M0 [color="#FF5722" penwidth=1.5 style=solid label="performs OTAs" dir=forward]
+	M0 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_205.dot b/test/diagrams/scanned_easy/diagrams_205.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a171096e7779d3f235250c6dcafa999d5c00b57b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_205.dot
@@ -0,0 +1,33 @@
+digraph {
+	rankdir=LR
+	N0 [label="Edge Network Topology Design" color="#E57373" fillcolor="#FFEBEE" shape=database style=filled]
+	N1 [label="Distributed Data Storage" color="#9FA9E1" fillcolor="#D6D9F0" shape=inputoutput style=filled]
+	N2 [label="Local AI or ML Inference" color="#73C6BC" fillcolor="#D0EFEE" shape=rect style=filled]
+	N3 [label="Data Synchronization between Edge and Cloud" color="#73C6BC" fillcolor="#D0EFEE" shape=predefinedprocess style=filled]
+	N4 [label="Event_Driven Architectures at Edge" color="#9FA9E1" fillcolor="#D6D9F0" shape=action style=filled]
+	N5 [label="Edge Data Processing" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+	S0 [label="" color="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Bandwidth Optimization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Bandwidth Optimization"
+		nest0_0 [label="Resource Management at Edge" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+		nest0_1 [label="Containerization at Edge" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+		nest0_2 [label="Connectivity to Cloud" color="#9FA9E1" fillcolor="#D6D9F0" shape=predefinedprocess style=filled]
+		nest0_3 [label="Telecom Edge Computing" color="#73C6BC" fillcolor="#D0EFEE" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="provisions resources" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="implements virtual machines" dir=forward]
+	nest0_0 -> nest0_1 [color="#E57373" penwidth=1.5 style=solid label="transfers data efficiently" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#73C6BC" penwidth=1.5 style=solid label="manages fleet" dir=forward]
+	nest0_3 -> N4 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_207.dot b/test/diagrams/scanned_easy/diagrams_207.dot
new file mode 100644
index 0000000000000000000000000000000000000000..79e139b24cd6a40852e01e9c6d3d36a5bbddba17
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_207.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=BT
+	N0 [label="Data Filtering at Edge" color="#CB9BE1" fillcolor="#F2E6F5" shape=diamond style=filled]
+	N1 [label="Bandwidth Optimization" color="#CB9BE1" fillcolor="#F2E6F5" shape=rectangle style=filled]
+	N2 [label="Connectivity to Cloud" color="#FF8A65" fillcolor="#FBE9E7" shape=multipledocuments style=filled]
+	N3 [label="Virtualization at Edge" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+	N4 [label="Smart City Edge Solutions" color="#CB9BE1" fillcolor="#F2E6F5" shape=predefinedprocess style=filled]
+	N5 [label="Edge Device Provisioning" color="#CB9BE1" fillcolor="#F2E6F5" shape=rectangle style=filled]
+	N6 [label="Healthcare Edge Computing" color="#FFF8A6" fillcolor="#FFFDE0" shape=inputoutput style=filled]
+	N7 [label="Orchestration of Edge Workloads" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+	N8 [label="Containerization at Edge" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+	S0 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Edge Device Deployment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Edge Device Deployment"
+		nest0_0 [label="Industrial Edge Computing" color="#FFF8A6" fillcolor="#FFFDE0" shape=hexagon style=filled]
+		nest0_1 [label="Fault Tolerance at Edge" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+		nest0_2 [label="Latency Reduction" color="#FF8A65" fillcolor="#FBE9E7" shape=database style=filled]
+	}
+	N0 -> N1 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#CB9BE1" penwidth=1.5 style=solid label="reduces latency" dir=forward]
+	N4 -> N5 [color="#FF8A65" penwidth=1.5 style=solid label="selects hardware" dir=forward]
+	N5 -> N6 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFF8A6" penwidth=1.5 style=dashed label="secures data" dir=forward]
+	N7 -> N8 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FF8A65" penwidth=1.5 style=dashed label="processes events" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid label="synchronizes data" dir=forward]
+	N6 -> nest0_0 [color="#FFF8A6" penwidth=1.5 style=solid label="optimizes bandwidth" dir=forward]
+	nest0_2 -> N8 [color="#000000" penwidth=1.5 style=solid label="manages power consumption" dir=forward]
+	N2 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N4 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_207.txt b/test/diagrams/scanned_easy/diagrams_207.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5c672a5b249bcc7a18e97462fc73ae1661804202
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_207.txt
@@ -0,0 +1,15 @@
+<Bandwidth Optimization, connectedTo, Connectivity to Cloud>
+<Bandwidth Optimization, connectedTo, Smart City Edge Solutions>
+<Connectivity to Cloud, connectedTo, Orchestration of Edge Workloads>
+<Connectivity to Cloud, connectedTo, Smart City Edge Solutions>
+<Connectivity to Cloud, connectedTo, Virtualization at Edge>
+<Data Filtering at Edge, connectedTo, Bandwidth Optimization>
+<Edge Device Provisioning, connectedTo, Healthcare Edge Computing>
+<Fault Tolerance at Edge, synchronizes data, Latency Reduction>
+<Healthcare Edge Computing, optimizes bandwidth, Industrial Edge Computing>
+<Healthcare Edge Computing, secures data, Orchestration of Edge Workloads>
+<Industrial Edge Computing, processes events, Fault Tolerance at Edge>
+<Latency Reduction, manages power consumption, Containerization at Edge>
+<Orchestration of Edge Workloads, connectedTo, Containerization at Edge>
+<Smart City Edge Solutions, selects hardware, Edge Device Provisioning>
+<Virtualization at Edge, reduces latency, Smart City Edge Solutions>
diff --git a/test/diagrams/scanned_easy/diagrams_209.dot b/test/diagrams/scanned_easy/diagrams_209.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cb24dfa5568ca5034186b75dee068046cf8698be
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_209.dot
@@ -0,0 +1,57 @@
+digraph {
+	rankdir=BT
+	N0 [label="Container Orchestration" color="#00BCD4" fillcolor="#E0F7FA" shape=multipledocuments style=filled]
+	N1 [label="Identity and Access Management" color="#4CAF50" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	N2 [label="Private Cloud Management" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+	N3 [label="Load Balancing in Cloud" color="#00BCD4" fillcolor="#E0F7FA" shape=preparation style=filled]
+	N4 [label="CI or CD Pipelines in Cloud" color="#4CAF50" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N5 [label="Infrastructure as a Service" color="#4CAF50" fillcolor="#C8E6C9" shape=rect style=filled]
+	N6 [label="Multi_Cloud Management" color="#4CAF50" fillcolor="#C8E6C9" shape=diamond style=filled]
+	N7 [label="Platform as a Service" color="#D2D2D2" fillcolor="#F0F0F0" shape=hexagon style=filled]
+	N8 [label="Cloud Migration Strategy" color="#D2D2D2" fillcolor="#F0F0F0" shape=diamond style=filled]
+	N9 [label="Software as a Service" color="#4CAF50" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N10 [label="Edge_to_Cloud Integration" color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+	N11 [label="API Management in Cloud" color="#D2D2D2" fillcolor="#F0F0F0" shape=preparation style=filled]
+	N12 [label="Cloud FinOps" color="#D2D2D2" fillcolor="#F0F0F0" shape=inputoutput style=filled]
+	S0 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#D2D2D2" fillcolor="#F0F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Cloud Automation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cloud Automation"
+		nest0_0 [label="Cloud Vendor Lock_in Mitigation" color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+		nest0_1 [label="Auto_Scaling Configurations" color="#4CAF50" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+		nest0_2 [label="Virtual Machine Management" color="#00BCD4" fillcolor="#E0F7FA" shape=document style=filled]
+		nest0_3 [label="Hybrid Cloud Deployment" color="#D2D2D2" fillcolor="#F0F0F0" shape=database style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="processes big data" dir=forward]
+	N4 -> N5 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#00BCD4" penwidth=1.5 style=dashed label="provides IaaS" dir=forward]
+	N6 -> N7 [color="#00BCD4" penwidth=1.5 style=dashed label="builds hybrid clouds" dir=forward]
+	N7 -> N8 [color="#D2D2D2" penwidth=1.5 style=solid label="audits usage" dir=forward]
+	N8 -> N9 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#4CAF50" penwidth=1.5 style=dashed label="delivers SaaS" dir=forward]
+	N10 -> N11 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#D2D2D2" penwidth=1.5 style=dashed label="architects solutions" dir=forward]
+	nest0_1 -> nest0_2 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#D2D2D2" penwidth=1.5 style=dashed label="implements FinOps" dir=forward]
+	nest0_3 -> N10 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S0 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#00BCD4" penwidth=1.5 style=dashed label="offers MLaaS" dir=forward]
+	N7 -> M0 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#4CAF50" penwidth=1.5 style=solid label="implements DevOps" dir=forward]
+	M0 -> N10 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N5 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_209.txt b/test/diagrams/scanned_easy/diagrams_209.txt
new file mode 100644
index 0000000000000000000000000000000000000000..62f324d0e92430e02f3b6b8ab1b117aea7ce3e68
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_209.txt
@@ -0,0 +1,26 @@
+<API Management in Cloud, connectedTo, Cloud FinOps>
+<Auto_Scaling Configurations, connectedTo, Virtual Machine Management>
+<CI or CD Pipelines in Cloud, connectedTo, Infrastructure as a Service>
+<Cloud Migration Strategy, connectedTo, API Management in Cloud>
+<Cloud Migration Strategy, connectedTo, Edge_to_Cloud Integration>
+<Cloud Migration Strategy, connectedTo, Software as a Service>
+<Cloud Migration Strategy, offers MLaaS, Cloud FinOps>
+<Cloud Vendor Lock_in Mitigation, architects solutions, Auto_Scaling Configurations>
+<Container Orchestration, connectedTo, Edge_to_Cloud Integration>
+<Container Orchestration, connectedTo, Identity and Access Management>
+<Edge_to_Cloud Integration, connectedTo, API Management in Cloud>
+<Hybrid Cloud Deployment, connectedTo, Edge_to_Cloud Integration>
+<Identity and Access Management, connectedTo, Infrastructure as a Service>
+<Identity and Access Management, connectedTo, Private Cloud Management>
+<Infrastructure as a Service, implements DevOps, Edge_to_Cloud Integration>
+<Infrastructure as a Service, implements FinOps, Cloud Vendor Lock_in Mitigation>
+<Infrastructure as a Service, provides IaaS, Multi_Cloud Management>
+<Load Balancing in Cloud, connectedTo, Infrastructure as a Service>
+<Load Balancing in Cloud, processes big data, CI or CD Pipelines in Cloud>
+<Multi_Cloud Management, builds hybrid clouds, Platform as a Service>
+<Platform as a Service, audits usage, Cloud Migration Strategy>
+<Platform as a Service, connectedTo, Edge_to_Cloud Integration>
+<Private Cloud Management, connectedTo, Infrastructure as a Service>
+<Private Cloud Management, connectedTo, Load Balancing in Cloud>
+<Software as a Service, delivers SaaS, Edge_to_Cloud Integration>
+<Virtual Machine Management, connectedTo, Hybrid Cloud Deployment>
diff --git a/test/diagrams/scanned_easy/diagrams_21.dot b/test/diagrams/scanned_easy/diagrams_21.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e05d697ef5e1ad4ddd4cc0d0172e78c293d2cc2a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_21.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=BT
+	N0 [label="Third_Party Administrator Liaison" color="#FFF8A6" fillcolor="#FFFDE0" shape=multipledocuments style=filled]
+	N1 [label="Broker Management" color="#80DDEA" fillcolor="#D3F7F9" shape=vnode_shape style=filled]
+	N2 [label="Market Research" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+	N3 [label="Digital Policy Management" color="#FFF8A6" fillcolor="#FFFDE0" shape=hexagon style=filled]
+	N4 [label="Underwriting" color="#3F51B5" fillcolor="#C5CAE9" shape=database style=filled]
+	N5 [label="Compliance Reporting" color="#3F51B5" fillcolor="#C5CAE9" shape=document style=filled]
+	N6 [label="Investment Management for Reserves" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N7 [label="Legal Review of Claims" color="#80DDEA" fillcolor="#D3F7F9" shape=multipledocuments style=filled]
+	N8 [label="Subrogation" color="#FFF8A6" fillcolor="#FFFDE0" shape=vnode_shape style=filled]
+	N9 [label="Customer Communication" color="#FFF8A6" fillcolor="#FFFDE0" shape=inputoutput style=filled]
+	N10 [label="Coverage Review" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N0 -> N1 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFF8A6" penwidth=1.5 style=solid label="advises" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="automates" dir=forward]
+	N4 -> N5 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#3F51B5" penwidth=1.5 style=dashed label="consults" dir=forward]
+	N6 -> N7 [color="#FFF8A6" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N7 -> N8 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#3F51B5" penwidth=1.5 style=solid label="sells" dir=forward]
+	N9 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> N2 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_21.txt b/test/diagrams/scanned_easy/diagrams_21.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cc9b63986435a887795bfc71353cbe508e11f202
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_21.txt
@@ -0,0 +1,12 @@
+<Broker Management, connectedTo, Market Research>
+<Compliance Reporting, consults, Investment Management for Reserves>
+<Customer Communication, connectedTo, Market Research>
+<Customer Communication, sells, Coverage Review>
+<Digital Policy Management, automates, Underwriting>
+<Investment Management for Reserves, optimizes, Legal Review of Claims>
+<Legal Review of Claims, connectedTo, Subrogation>
+<Market Research, advises, Digital Policy Management>
+<Subrogation, connectedTo, Customer Communication>
+<Third_Party Administrator Liaison, connectedTo, Broker Management>
+<Third_Party Administrator Liaison, connectedTo, Market Research>
+<Underwriting, connectedTo, Compliance Reporting>
diff --git a/test/diagrams/scanned_easy/diagrams_211.dot b/test/diagrams/scanned_easy/diagrams_211.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b3deb675fc2551ce304caf708d4d0d55beadf78b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_211.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=BT
+	N0 [label="Automation Scripting" color="#FFCC7A" fillcolor="#FFF6D9" shape=hexagon style=filled]
+	N1 [label="Capacity Planning" color="#80DDEA" fillcolor="#D3F7F9" shape=document style=filled]
+	N2 [label="Operating System Installation" color="#80DDEA" fillcolor="#D3F7F9" shape=preparation style=filled]
+	N3 [label="Load Balancer Setup" color="#FFCC7A" fillcolor="#FFF6D9" shape=preparation style=filled]
+	N4 [label="Web Server Configuration" color="#FFCC7A" fillcolor="#FFF6D9" shape=rect style=filled]
+	N5 [label="Environmental Monitoring" color="#FFCC7A" fillcolor="#FFF6D9" shape=hexagon style=filled]
+	N6 [label="Monitoring and Alerting" color="#80DDEA" fillcolor="#D3F7F9" shape=document style=filled]
+	N7 [label="Mail Server Management" color="#FFCC7A" fillcolor="#FFF6D9" shape=vnode_shape style=filled]
+	N8 [label="Troubleshooting and Support" color="#FFCC7A" fillcolor="#FFF6D9" shape=rect style=filled]
+	N9 [label="Group Policy Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=rect style=filled]
+	N10 [label="System Administration" color="#80DDEA" fillcolor="#D3F7F9" shape=rect style=filled]
+	N11 [label="Antivirus and Endpoint Protection" color="#A2D0FF" fillcolor="#E8F0FF" shape=vnode_shape style=filled]
+	S0 [label="" color="#FFCC7A" fillcolor="#FFF6D9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#80DDEA" fillcolor="#D3F7F9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Remote Access Solutions {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Remote Access Solutions"
+		nest0_0 [label="Database Administration" color="#80DDEA" fillcolor="#D3F7F9" shape=preparation style=filled]
+		nest0_1 [label="IT Asset Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="plans capacity" dir=forward]
+	N1 -> N2 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFCC7A" penwidth=1.5 style=dashed label="configures firewalls" dir=forward]
+	N8 -> N9 [color="#FFCC7A" penwidth=1.5 style=dashed label="integrates clouds" dir=forward]
+	N9 -> N10 [color="#80DDEA" penwidth=1.5 style=solid label="optimizes environments" dir=forward]
+	N10 -> N11 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N7 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S0 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N7 -> S1 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#A2D0FF" penwidth=1.5 style=dashed label="deploys antiviruses" dir=forward]
+	S1 -> N11 [color="#80DDEA" penwidth=1.5 style=dashed label="monitors performance" dir=forward]
+	N4 -> M0 [color="#FFCC7A" penwidth=1.5 style=solid label="troubleshoots issues" dir=forward]
+	N5 -> M0 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_212.dot b/test/diagrams/scanned_easy/diagrams_212.dot
new file mode 100644
index 0000000000000000000000000000000000000000..187c00ce9a7880d2382b1da6699d1ecb82c0e751
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_212.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=LR
+	N0 [label="Antivirus and Endpoint Protection" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+	N1 [label="Directory Services" color="#5C6BC0" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N2 [label="Network Design" color="#6EB76D" fillcolor="#E9F7E8" shape=document style=filled]
+	N3 [label="Operating System Installation" color="#A188D0" fillcolor="#DACBE3" shape=parallelogram style=filled]
+	N4 [label="Web Server Configuration" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N5 [label="Troubleshooting and Support" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N6 [label="IT Asset Management" color="#5C6BC0" fillcolor="#E8EAF6" shape=predefinedprocess style=filled]
+	S0 [label="" color="#A188D0" fillcolor="#DACBE3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#A188D0" fillcolor="#DACBE3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Network Security {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Network Security"
+		nest0_0 [label="Capacity Planning" color="#A188D0" fillcolor="#DACBE3" shape=database style=filled]
+		nest0_1 [label="Storage Solutions" color="#6EB76D" fillcolor="#E9F7E8" shape=database style=filled]
+		nest0_2 [label="Rack and Cabinet Management" color="#5C6BC0" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#6EB76D" penwidth=1.5 style=dashed label="manages proxies" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="deploys antiviruses" dir=forward]
+	N3 -> N4 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N4 [color="#A188D0" penwidth=1.5 style=dashed label="procures equipment" dir=forward]
+	N2 -> S0 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#A188D0" penwidth=1.5 style=dashed label="manages licenses" dir=forward]
+	S0 -> N5 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S1 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#A188D0" penwidth=1.5 style=solid label="troubleshoots issues" dir=forward]
+	N0 -> M0 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_212.txt b/test/diagrams/scanned_easy/diagrams_212.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8c7680515d8491fe60bfead25a5a25b4f534c8af
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_212.txt
@@ -0,0 +1,17 @@
+<Antivirus and Endpoint Protection, connectedTo, Directory Services>
+<Antivirus and Endpoint Protection, connectedTo, Troubleshooting and Support>
+<Capacity Planning, connectedTo, Storage Solutions>
+<Directory Services, manages proxies, Network Design>
+<Network Design, connectedTo, IT Asset Management>
+<Network Design, connectedTo, Troubleshooting and Support>
+<Network Design, deploys antiviruses, Operating System Installation>
+<Network Design, manages licenses, Web Server Configuration>
+<Network Design, troubleshoots issues, Troubleshooting and Support>
+<Operating System Installation, connectedTo, IT Asset Management>
+<Operating System Installation, connectedTo, Troubleshooting and Support>
+<Operating System Installation, connectedTo, Web Server Configuration>
+<Rack and Cabinet Management, procures equipment, Web Server Configuration>
+<Storage Solutions, connectedTo, Rack and Cabinet Management>
+<Troubleshooting and Support, connectedTo, IT Asset Management>
+<Web Server Configuration, connectedTo, Capacity Planning>
+<Web Server Configuration, connectedTo, Troubleshooting and Support>
diff --git a/test/diagrams/scanned_easy/diagrams_214.dot b/test/diagrams/scanned_easy/diagrams_214.dot
new file mode 100644
index 0000000000000000000000000000000000000000..79d4afe0ef42d53638e8d2aa317412cf24d7b716
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_214.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=RL
+	N0 [label="Microservices Architecture" color="#4285F4" fillcolor="#D0E0F8" shape=multipledocuments style=filled]
+	N1 [label="Environment Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=document style=filled]
+	N2 [label="Automated Rollbacks" color="#CFCFCF" fillcolor="#F6F6F6" shape=parallelogram style=filled]
+	N3 [label="Performance Metrics Analysis" color="#CDDC39" fillcolor="#E6EE9C" shape=predefinedprocess style=filled]
+	N4 [label="Collaboration Tools" color="#4285F4" fillcolor="#D0E0F8" shape=vnode_shape style=filled]
+	N5 [label="Version Control" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+	N6 [label="Immutable Infrastructure" color="#4285F4" fillcolor="#D0E0F8" shape=diamond style=filled]
+	N7 [label="Pipeline Automation" color="#CFCFCF" fillcolor="#F6F6F6" shape=document style=filled]
+	N8 [label="Containerization" color="#CFCFCF" fillcolor="#F6F6F6" shape=database style=filled]
+	N9 [label="Feedback Loops" color="#CFCFCF" fillcolor="#F6F6F6" shape=document style=filled]
+	S0 [label="" color="#CDDC39" fillcolor="#E6EE9C" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Blue_Green Deployments {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Blue_Green Deployments"
+		nest0_0 [label="Static Code Analysis" color="#4285F4" fillcolor="#D0E0F8" shape=rectangle style=filled]
+		nest0_1 [label="Cross_Functional Team Collaboration" color="#CDDC39" fillcolor="#E6EE9C" shape=multipledocuments style=filled]
+		nest0_2 [label="Serverless Deployment" color="#4285F4" fillcolor="#D0E0F8" shape=action style=filled]
+		nest0_3 [label="Release Management" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+	}
+	N0 -> N1 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#CDDC39" penwidth=1.5 style=solid label="integrates security" dir=forward]
+	N3 -> N4 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#CFCFCF" penwidth=1.5 style=solid label="manages microservices" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#CDDC39" penwidth=1.5 style=solid label="gathers feedback" dir=forward]
+	N8 -> N9 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#CFCFCF" penwidth=1.5 style=dashed label="fosters cross_functional teams" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N3 [color="#CDDC39" penwidth=1.5 style=dashed label="automates tests" dir=forward]
+	N2 -> S0 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#4285F4" penwidth=1.5 style=dashed label="enables CD" dir=forward]
+	nest0_3 -> nest0_2 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#CDDC39" penwidth=1.5 style=dashed label="implements blue_green" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_214.txt b/test/diagrams/scanned_easy/diagrams_214.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ee1a3c31eb159917702d0749f9aacfb20fa07e7a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_214.txt
@@ -0,0 +1,19 @@
+<Automated Rollbacks, connectedTo, Containerization>
+<Automated Rollbacks, connectedTo, Pipeline Automation>
+<Automated Rollbacks, integrates security, Performance Metrics Analysis>
+<Collaboration Tools, connectedTo, Version Control>
+<Collaboration Tools, implements blue_green, Static Code Analysis>
+<Containerization, connectedTo, Feedback Loops>
+<Cross_Functional Team Collaboration, connectedTo, Serverless Deployment>
+<Environment Management, connectedTo, Automated Rollbacks>
+<Immutable Infrastructure, connectedTo, Pipeline Automation>
+<Immutable Infrastructure, enables CD, Static Code Analysis>
+<Microservices Architecture, connectedTo, Environment Management>
+<Performance Metrics Analysis, connectedTo, Collaboration Tools>
+<Pipeline Automation, gathers feedback, Containerization>
+<Release Management, automates tests, Performance Metrics Analysis>
+<Release Management, connectedTo, Serverless Deployment>
+<Serverless Deployment, connectedTo, Release Management>
+<Static Code Analysis, fosters cross_functional teams, Cross_Functional Team Collaboration>
+<Version Control, connectedTo, Static Code Analysis>
+<Version Control, manages microservices, Immutable Infrastructure>
diff --git a/test/diagrams/scanned_easy/diagrams_217.dot b/test/diagrams/scanned_easy/diagrams_217.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3d4fd9e512c3b9e8fb0348a108133a26df48e225
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_217.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=RL
+	N0 [label="Algorithm Design" color="#F7BEE0" fillcolor="#FAEBF3" shape=document style=filled]
+	N1 [label="Agile Methodologies" color="#F7BEE0" fillcolor="#FAEBF3" shape=predefinedprocess style=filled]
+	N2 [label="Continuous Integration" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N3 [label="Compiler Design" color="#DCE775" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N4 [label="Game Development" color="#DCE775" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N5 [label="Mobile Application Development" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	S0 [label="" color="#DCE775" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#F7BEE0" fillcolor="#FAEBF3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFF176" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Refactoring {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Refactoring"
+		nest0_0 [label="User Interface Design" color="#F7BEE0" fillcolor="#FAEBF3" shape=rect style=filled]
+		nest0_1 [label="Embedded Systems Development" color="#DCE775" fillcolor="#F9FBE7" shape=diamond style=filled]
+		nest0_2 [label="Containerization" color="#F7BEE0" fillcolor="#FAEBF3" shape=hexagon style=filled]
+		nest0_3 [label="Testing Frameworks" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="manages versions" dir=forward]
+	N1 -> N2 [color="#F7BEE0" penwidth=1.5 style=solid label="manages technical debt" dir=forward]
+	N2 -> N3 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#F7BEE0" penwidth=1.5 style=solid label="architects systems" dir=forward]
+	N3 -> nest0_0 [color="#DCE775" penwidth=1.5 style=dashed label="develops cloud_native apps" dir=forward]
+	nest0_3 -> N1 [color="#000000" penwidth=1.5 style=solid label="writes unit tests" dir=forward]
+	N2 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#DCE775" penwidth=1.5 style=dashed label="performs refactoring" dir=forward]
+	N0 -> S1 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S1 -> N2 [color="#F7BEE0" penwidth=1.5 style=solid label="manages databases" dir=forward]
+	S1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N4 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_219.txt b/test/diagrams/scanned_easy/diagrams_219.txt
new file mode 100644
index 0000000000000000000000000000000000000000..14698a463c79ea80338fae2e552cc743d3c660f3
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_219.txt
@@ -0,0 +1,17 @@
+<Containerization, connectedTo, Requirements Gathering>
+<Containerization, develops frontends, Continuous Integration>
+<Continuous Delivery, connectedTo, Game Development>
+<Continuous Integration, connectedTo, Scalability Design>
+<Continuous Integration, connectedTo, Version Control>
+<Database Design, connectedTo, Integration Testing>
+<Database Design, connectedTo, User Interface Design>
+<Desktop Application Development, develops cloud_native apps, Continuous Delivery>
+<Game Development, designs algorithms, Containerization>
+<Integration Testing, connectedTo, Refactoring>
+<Refactoring, develops web apps, Database Design>
+<Refactoring, interacts with OSs, Requirements Gathering>
+<Scalability Design, connectedTo, Requirements Gathering>
+<Technical Debt Management, connectedTo, Desktop Application Development>
+<User Experience Design, connectedTo, User Interface Design>
+<User Interface Design, connectedTo, Technical Debt Management>
+<Version Control, gathers requirements, User Experience Design>
diff --git a/test/diagrams/scanned_easy/diagrams_22.dot b/test/diagrams/scanned_easy/diagrams_22.dot
new file mode 100644
index 0000000000000000000000000000000000000000..805d85940ce1cadcc8f41d0352f815e57d916336
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_22.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Backup and Recovery" color="#4DB6AC" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N1 [label="Intrusion Prevention" color="#4DB6AC" fillcolor="#E0F2F1" shape=database style=filled]
+	N2 [label="Penetration Testing" color="#4DB6AC" fillcolor="#E0F2F1" shape=database style=filled]
+	N3 [label="Disaster Recovery Planning" color="#FFE470" fillcolor="#FFFAE0" shape=inputoutput style=filled]
+	N4 [label="Threat Intelligence Gathering" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N5 [label="Digital Forensics" color="#4DB6AC" fillcolor="#E0F2F1" shape=predefinedprocess style=filled]
+	N6 [label="Insider Threat Detection" color="#94C0C0" fillcolor="#CADEDE" shape=inputoutput style=filled]
+	N7 [label="Security Awareness Training" color="#4DB6AC" fillcolor="#E0F2F1" shape=preparation style=filled]
+	N0 -> N1 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#94C0C0" penwidth=1.5 style=solid label="governs" dir=forward]
+	N2 -> N3 [color="#94C0C0" penwidth=1.5 style=solid label="encrypts" dir=forward]
+	N3 -> N4 [color="#94C0C0" penwidth=1.5 style=solid label="automates" dir=forward]
+	N4 -> N5 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#4DB6AC" penwidth=1.5 style=solid label="filters" dir=forward]
+	N2 -> N6 [color="#000000" penwidth=1.5 style=dashed label="protects" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_220.dot b/test/diagrams/scanned_easy/diagrams_220.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3cb5ff9e90f9f3bac491f6fe66a579628fc1f574
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_220.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=BT
+	N0 [label="ASIC Design" color="#BA68C8" fillcolor="#F3E5F5" shape=rectangle style=filled]
+	N1 [label="Failure Analysis" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+	N2 [label="Power Management Design" color="#F44336" fillcolor="#FFCDD2" shape=rect style=filled]
+	N3 [label="Reverse Engineering" color="#BA68C8" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N4 [label="Test Fixture Design" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N5 [label="Quality Control" color="#BA68C8" fillcolor="#F3E5F5" shape=preparation style=filled]
+	N6 [label="Firmware Development" color="#4CAF50" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N7 [label="Optical Module Design" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N8 [label="Testing and Validation" color="#4CAF50" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N9 [label="Documentation" color="#F44336" fillcolor="#FFCDD2" shape=rectangle style=filled]
+	N10 [label="Circuit Design" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	S0 [label="" color="#F44336" fillcolor="#FFCDD2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_High_Speed Digital Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="High_Speed Digital Design"
+		nest0_0 [label="Regulatory Compliance" color="#4CAF50" fillcolor="#C8E6C9" shape=rectangle style=filled]
+		nest0_1 [label="Troubleshooting and Debugging" color="#BA68C8" fillcolor="#F3E5F5" shape=action style=filled]
+	}
+	N0 -> N1 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="ensures compliance" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#BA68C8" penwidth=1.5 style=solid label="designs mixed_signal" dir=forward]
+	N5 -> N6 [color="#F44336" penwidth=1.5 style=dashed label="performs reverse engineering" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#BA68C8" penwidth=1.5 style=dashed label="optimizes for low power" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_220.txt b/test/diagrams/scanned_easy/diagrams_220.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f68e5da56cfa003ee419fb55b6265f6dfb220dfe
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_220.txt
@@ -0,0 +1,17 @@
+<ASIC Design, connectedTo, Failure Analysis>
+<ASIC Design, connectedTo, Reverse Engineering>
+<ASIC Design, connectedTo, Testing and Validation>
+<Documentation, connectedTo, Regulatory Compliance>
+<Documentation, optimizes for low power, Circuit Design>
+<Failure Analysis, connectedTo, Power Management Design>
+<Firmware Development, connectedTo, Optical Module Design>
+<Optical Module Design, connectedTo, Testing and Validation>
+<Power Management Design, ensures compliance, Reverse Engineering>
+<Quality Control, performs reverse engineering, Firmware Development>
+<Regulatory Compliance, connectedTo, Troubleshooting and Debugging>
+<Reverse Engineering, connectedTo, Optical Module Design>
+<Reverse Engineering, connectedTo, Test Fixture Design>
+<Test Fixture Design, connectedTo, Optical Module Design>
+<Test Fixture Design, designs mixed_signal, Quality Control>
+<Testing and Validation, connectedTo, Documentation>
+<Troubleshooting and Debugging, connectedTo, Quality Control>
diff --git a/test/diagrams/scanned_easy/diagrams_221.dot b/test/diagrams/scanned_easy/diagrams_221.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ea087f9036f164037a4efbc5543a226beb222c4b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_221.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=RL
+	N0 [label="Regulatory Compliance" color="#AABEC6" fillcolor="#E0E6E9" shape=predefinedprocess style=filled]
+	N1 [label="Environmental Testing" color="#E91E63" fillcolor="#FCE4EC" shape=database style=filled]
+	N2 [label="Thermal Management" color="#AABEC6" fillcolor="#E0E6E9" shape=preparation style=filled]
+	N3 [label="ASIC Design" color="#FF9800" fillcolor="#FFE0B2" shape=vnode_shape style=filled]
+	N4 [label="Quality Control" color="#AABEC6" fillcolor="#E0E6E9" shape=rectangle style=filled]
+	N5 [label="Signal Integrity Analysis" color="#FF9800" fillcolor="#FFE0B2" shape=predefinedprocess style=filled]
+	N6 [label="High_Speed Digital Design" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N7 [label="Material Selection" color="#AABEC6" fillcolor="#E0E6E9" shape=vnode_shape style=filled]
+	N8 [label="Documentation" color="#FF9800" fillcolor="#FFE0B2" shape=parallelogram style=filled]
+	S1 [label="" color="#FF9800" fillcolor="#FFE0B2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#AABEC6" fillcolor="#E0E6E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FF9800" fillcolor="#FFE0B2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Schematic Capture {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Schematic Capture"
+		nest0_0 [label="Low_Power Design" color="#FF9800" fillcolor="#FFE0B2" shape=parallelogram style=filled]
+		nest0_1 [label="Test Fixture Design" color="#FF9800" fillcolor="#FFE0B2" shape=database style=filled]
+	}
+	N0 -> N1 [color="#AABEC6" penwidth=1.5 style=dashed label="supervises assembly" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FF9800" penwidth=1.5 style=solid label="analyzes failures" dir=forward]
+	N5 -> N6 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#FF9800" penwidth=1.5 style=dashed label="manages supply chains" dir=forward]
+	nest0_1 -> N3 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#000000" penwidth=1.5 style=solid label="oversees manufacturing" dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#E91E63" penwidth=1.5 style=solid label="tests environmental resilience" dir=forward]
+	N1 -> M0 [color="#AABEC6" penwidth=1.5 style=dashed label="analyzes thermals" dir=forward]
+	M0 -> N3 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#FF9800" penwidth=1.5 style=solid label="develops RF systems" dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_222.dot b/test/diagrams/scanned_easy/diagrams_222.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bac1fa2b12a9d48cf94f291308c4abe753c518a2
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_222.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=LR
+	N0 [label="Enclosure Design" color="#FFB74D" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+	N1 [label="ASIC Design" color="#4CAF50" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N2 [label="Testing and Validation" color="#4CAF50" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N3 [label="PCB Layout" color="#FFB74D" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+	N4 [label="Low_Power Design" color="#FFB74D" fillcolor="#FFF3E0" shape=box style=filled]
+	N5 [label="Assembly Line Optimization" color="#CD8FF2" fillcolor="#ECCFF5" shape=vnode_shape style=filled]
+	N6 [label="Mixed_Signal Design" color="#CD8FF2" fillcolor="#ECCFF5" shape=diamond style=filled]
+	N7 [label="Troubleshooting and Debugging" color="#FFB74D" fillcolor="#FFF3E0" shape=document style=filled]
+	N8 [label="Component Selection" color="#4CAF50" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	S0 [label="" color="#FFB74D" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Environmental Testing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Environmental Testing"
+		nest0_0 [label="Cable Management" color="#FFB74D" fillcolor="#FFF3E0" shape=rect style=filled]
+		nest0_1 [label="Electromagnetic Compatibility Testing" color="#CD8FF2" fillcolor="#ECCFF5" shape=hexagon style=filled]
+		nest0_2 [label="Firmware Development" color="#CD8FF2" fillcolor="#ECCFF5" shape=predefinedprocess style=filled]
+		nest0_3 [label="Cost Optimization" color="#FFB74D" fillcolor="#FFF3E0" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFB74D" penwidth=1.5 style=solid label="designs mechanicals" dir=forward]
+	N3 -> N4 [color="#4CAF50" penwidth=1.5 style=dashed label="designs optical systems" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#CD8FF2" penwidth=1.5 style=solid label="controls actuators" dir=forward]
+	nest0_1 -> nest0_2 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N5 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N4 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> N3 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N7 [color="#000000" penwidth=1.5 style=solid label="selects materials" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_223.txt b/test/diagrams/scanned_easy/diagrams_223.txt
new file mode 100644
index 0000000000000000000000000000000000000000..85c51ddcb34bc614450f7d7633ffce750859d672
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_223.txt
@@ -0,0 +1,22 @@
+<Accessibility Features, connectedTo, Push Notification Implementation>
+<Ad Monetization, connectedTo, User Interface Design>
+<Analytics Tracking, connectedTo, Accessibility Features>
+<Backend Integration, designs UIs, Chat Functionality>
+<Biometric Authentication, designs onboarding, User Experience Design>
+<Camera Integration, connectedTo, Microphone Integration>
+<Chat Functionality, connectedTo, Analytics Tracking>
+<Chat Functionality, optimizes ASO, User Onboarding Flows>
+<Cloud Backend for Mobile, connectedTo, Analytics Tracking>
+<Cloud Backend for Mobile, connectedTo, Chat Functionality>
+<Cloud Backend for Mobile, connectedTo, User Feedback Collection>
+<Cloud Backend for Mobile, integrates wearables, Cross_Platform Development>
+<Concept Development, implements biometrics, User Feedback Collection>
+<Cross_Platform Development, connectedTo, Ad Monetization>
+<Cross_Platform Development, develops native apps, Backend Integration>
+<Deep Linking, connectedTo, Camera Integration>
+<Push Notification Implementation, connectedTo, Cross_Platform Development>
+<User Experience Design, connectedTo, Wearable Device Integration>
+<User Feedback Collection, designs UXs, Biometric Authentication>
+<User Interface Design, connectedTo, Biometric Authentication>
+<User Onboarding Flows, connectedTo, Concept Development>
+<Wearable Device Integration, connectedTo, Deep Linking>
diff --git a/test/diagrams/scanned_easy/diagrams_225.dot b/test/diagrams/scanned_easy/diagrams_225.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ac9698b94fc599889a96688f72cd441f8bad8e90
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_225.dot
@@ -0,0 +1,56 @@
+digraph {
+	rankdir=BT
+	N0 [label="Backend Integration" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N1 [label="Wireframing" color="#AB47BC" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N2 [label="Crash Reporting" color="#FFF176" fillcolor="#FFFDE7" shape=database style=filled]
+	N3 [label="User Experience Design" color="#C0CA33" fillcolor="#F9FBE7" shape=database style=filled]
+	N4 [label="Offline Mode Development" color="#FFF176" fillcolor="#FFFDE7" shape=document style=filled]
+	N5 [label="User Interface Design" color="#AB47BC" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N6 [label="Analytics Tracking" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N7 [label="Deployment to App Stores" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N8 [label="Push Notification Implementation" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N9 [label="Cloud Backend for Mobile" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N10 [label="In_App Purchase Integration" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N11 [label="Wearable Device Integration" color="#C0CA33" fillcolor="#F9FBE7" shape=database style=filled]
+	N12 [label="Prototyping" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	N13 [label="API Development" color="#FFF176" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	N14 [label="Widget Development" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	S0 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#AB47BC" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Cross_Platform Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cross_Platform Development"
+		nest0_0 [label="Camera Integration" color="#C0CA33" fillcolor="#F9FBE7" shape=document style=filled]
+		nest0_1 [label="Biometric Authentication" color="#FFF176" fillcolor="#FFFDE7" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#AB47BC" penwidth=1.5 style=solid label="optimizes ASO" dir=forward]
+	N1 -> N2 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#AB47BC" penwidth=1.5 style=dashed label="enables offline access" dir=forward]
+	N13 -> N14 [color="#C0CA33" penwidth=1.5 style=solid label="manages updates" dir=forward]
+	nest0_0 -> nest0_1 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#000000" penwidth=1.5 style=solid label="implements security" dir=forward]
+	nest0_1 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#000000" penwidth=1.5 style=solid label="integrates wearables" dir=forward]
+	S0 -> N10 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FFF176" penwidth=1.5 style=dashed label="conducts tests" dir=forward]
+	N8 -> M0 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N10 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#FFF176" penwidth=1.5 style=dashed label="creates wireframes" dir=forward]
+	N2 -> M1 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N5 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_228.dot b/test/diagrams/scanned_easy/diagrams_228.dot
new file mode 100644
index 0000000000000000000000000000000000000000..33fab59d2c0d03ec5b05dc59db44eef676064ac6
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_228.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=LR
+	N0 [label="Personal Branding on Social Media" color="#FFF8A6" fillcolor="#FFFDE0" shape=action style=filled]
+	N1 [label="Hashtag Research" color="#FFF8A6" fillcolor="#FFFDE0" shape=parallelogram style=filled]
+	N2 [label="Platform Algorithm Understanding" color="#A188D0" fillcolor="#DACBE3" shape=action style=filled]
+	N3 [label="User_Generated Content Curation" color="#FFF176" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N4 [label="Social Media Audits" color="#FFF8A6" fillcolor="#FFFDE0" shape=diamond style=filled]
+	N5 [label="Trend Monitoring" color="#A188D0" fillcolor="#DACBE3" shape=vnode_shape style=filled]
+	N6 [label="Cross_Promotion" color="#FFF8A6" fillcolor="#FFFDE0" shape=preparation style=filled]
+	N7 [label="Engagement Rate Calculation" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N8 [label="Direct Messaging Strategy" color="#FFF8A6" fillcolor="#FFFDE0" shape=inputoutput style=filled]
+	N9 [label="Story Format Content Creation" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	N10 [label="Audience Engagement" color="#A188D0" fillcolor="#DACBE3" shape=rectangle style=filled]
+	N11 [label="Paid Social Media Advertising" color="#A188D0" fillcolor="#DACBE3" shape=action style=filled]
+	N12 [label="Brand Voice Development" color="#A188D0" fillcolor="#DACBE3" shape=preparation style=filled]
+	S0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Influencer Collaboration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Influencer Collaboration"
+		nest0_0 [label="Reels or Short Video Production" color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+		nest0_1 [label="Polls and Quizzes Creation" color="#FFF176" fillcolor="#FFFDE7" shape=preparation style=filled]
+		nest0_2 [label="Community Management" color="#A188D0" fillcolor="#DACBE3" shape=action style=filled]
+		nest0_3 [label="Platform Selection" color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#FFF8A6" penwidth=1.5 style=dashed label="manages crises" dir=forward]
+	N1 -> N2 [color="#A188D0" penwidth=1.5 style=solid label="shares links" dir=forward]
+	N2 -> N3 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFF8A6" penwidth=1.5 style=dashed label="builds personal brands" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFF176" penwidth=1.5 style=solid label="curates UGC" dir=forward]
+	nest0_0 -> nest0_1 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#FFF176" penwidth=1.5 style=solid label="develops strategies" dir=forward]
+	nest0_2 -> nest0_3 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#A188D0" penwidth=1.5 style=dashed label="tracks performance" dir=forward]
+	nest0_3 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> S0 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=solid label="manages campaigns" dir=forward]
+	S0 -> N12 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#FFF8A6" penwidth=1.5 style=dashed label="runs polls" dir=forward]
+	N1 -> M0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_229.dot b/test/diagrams/scanned_easy/diagrams_229.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6f5512716239d58dc686696dd0ea2cebc990dd70
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_229.dot
@@ -0,0 +1,39 @@
+digraph {
+	rankdir=BT
+	N0 [label="Search Console Management" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	N1 [label="Negative SEO Prevention" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+	N2 [label="User Intent Understanding" color="#42A5F5" fillcolor="#F1F8FF" shape=diamond style=filled]
+	N3 [label="Technical SEO" color="#FFE470" fillcolor="#FFFAE0" shape=document style=filled]
+	N4 [label="Academic Search" color="#42A5F5" fillcolor="#F1F8FF" shape=inputoutput style=filled]
+	N5 [label="Ranking Algorithms" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	N6 [label="Featured Snippets Optimization" color="#42A5F5" fillcolor="#F1F8FF" shape=vnode_shape style=filled]
+	N7 [label="Content Quality Assessment" color="#FFE470" fillcolor="#FFFAE0" shape=preparation style=filled]
+	S0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#42A5F5" fillcolor="#F1F8FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Query Processing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Query Processing"
+		nest0_0 [label="Search Engine Marketing Strategy" color="#42A5F5" fillcolor="#F1F8FF" shape=rect style=filled]
+		nest0_1 [label="On_Page SEO" color="#FFE470" fillcolor="#FFFAE0" shape=rect style=filled]
+		nest0_2 [label="Click_Through Rate Optimization" color="#FFE470" fillcolor="#FFFAE0" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="optimizes local search" dir=forward]
+	N6 -> N7 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#42A5F5" penwidth=1.5 style=dashed label="manages SEM" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed label="uses semantics" dir=forward]
+	N2 -> nest0_0 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N4 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=dashed label="displays snippets" dir=forward]
+	S0 -> N5 [color="#EAEFA5" penwidth=1.5 style=solid label="creates content" dir=forward]
+	N0 -> M0 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N3 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_229.txt b/test/diagrams/scanned_easy/diagrams_229.txt
new file mode 100644
index 0000000000000000000000000000000000000000..05d3c5e2d9a3e8345da471055bf2993234a79d64
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_229.txt
@@ -0,0 +1,16 @@
+<Academic Search, connectedTo, Ranking Algorithms>
+<Click_Through Rate Optimization, connectedTo, Academic Search>
+<Featured Snippets Optimization, connectedTo, Content Quality Assessment>
+<Negative SEO Prevention, connectedTo, Content Quality Assessment>
+<Negative SEO Prevention, connectedTo, Technical SEO>
+<Negative SEO Prevention, connectedTo, User Intent Understanding>
+<Negative SEO Prevention, creates content, Ranking Algorithms>
+<Negative SEO Prevention, displays snippets, Featured Snippets Optimization>
+<On_Page SEO, uses semantics, Click_Through Rate Optimization>
+<Ranking Algorithms, optimizes local search, Featured Snippets Optimization>
+<Search Console Management, connectedTo, Negative SEO Prevention>
+<Search Console Management, connectedTo, Technical SEO>
+<Search Engine Marketing Strategy, manages SEM, On_Page SEO>
+<Technical SEO, connectedTo, Academic Search>
+<User Intent Understanding, connectedTo, Search Engine Marketing Strategy>
+<User Intent Understanding, connectedTo, Technical SEO>
diff --git a/test/diagrams/scanned_easy/diagrams_23.dot b/test/diagrams/scanned_easy/diagrams_23.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0236f3727230207ece46db664d091805cf72653d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_23.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=LR
+	N0 [label="Elderly Care Monitoring" color="#FF8A65" fillcolor="#FBE9E7" shape=rectangle style=filled]
+	N1 [label="Power Outage Notification" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N2 [label="Pet Feeder Automation" color="#64B5F6" fillcolor="#E3F2FD" shape=inputoutput style=filled]
+	N3 [label="Guest Access Management" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N4 [label="Remote Control" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N5 [label="Smart Appliance Control" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N6 [label="Smoke Alarm Integration" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N7 [label="Automated Vacuum Cleaning" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+	N8 [label="Water Heater Control" color="#64B5F6" fillcolor="#E3F2FD" shape=hexagon style=filled]
+	N9 [label="Smart Plug Management" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+	N10 [label="Security Alert" color="#FF8A65" fillcolor="#FBE9E7" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	N1 -> N2 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#66BB6A" penwidth=1.5 style=dashed label="schedules" dir=forward]
+	N3 -> N4 [color="#64B5F6" penwidth=1.5 style=dashed label="integrates" dir=forward]
+	N4 -> N5 [color="#66BB6A" penwidth=1.5 style=dashed label="notifies" dir=forward]
+	N5 -> N6 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="diagnoses" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="closes" dir=forward]
+	N4 -> N7 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N1 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_23.txt b/test/diagrams/scanned_easy/diagrams_23.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a2e2d0ab329b043543103d55d22703ce5a6c4399
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_23.txt
@@ -0,0 +1,12 @@
+<Automated Vacuum Cleaning, connectedTo, Water Heater Control>
+<Elderly Care Monitoring, communicates, Power Outage Notification>
+<Guest Access Management, integrates, Remote Control>
+<Pet Feeder Automation, schedules, Guest Access Management>
+<Power Outage Notification, connectedTo, Pet Feeder Automation>
+<Remote Control, connectedTo, Automated Vacuum Cleaning>
+<Remote Control, notifies, Smart Appliance Control>
+<Security Alert, connectedTo, Power Outage Notification>
+<Smart Appliance Control, connectedTo, Smoke Alarm Integration>
+<Smart Plug Management, closes, Security Alert>
+<Smoke Alarm Integration, connectedTo, Automated Vacuum Cleaning>
+<Water Heater Control, diagnoses, Smart Plug Management>
diff --git a/test/diagrams/scanned_easy/diagrams_230.txt b/test/diagrams/scanned_easy/diagrams_230.txt
new file mode 100644
index 0000000000000000000000000000000000000000..96c03e9afbe706578ed2a3fc3e882d84f067bd4c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_230.txt
@@ -0,0 +1,12 @@
+<Click_Through Rate Optimization, connectedTo, Off_Page SEO>
+<Click_Through Rate Optimization, handles voice search, Personalized Search Results>
+<Off_Page SEO, connectedTo, On_Page SEO>
+<Off_Page SEO, connectedTo, Personalized Search Results>
+<Off_Page SEO, connectedTo, Schema Markup Implementation>
+<On_Page SEO, connectedTo, Personalized Search Results>
+<Personalized Search Results, connectedTo, Search Engine Optimization>
+<Personalized Search Results, uses search console, Semantic Search>
+<Search Engine Optimization, connectedTo, Shopping Search>
+<Semantic Search, connectedTo, Schema Markup Implementation>
+<Shopping Search, connectedTo, Site Architecture Optimization>
+<Site Architecture Optimization, optimizes for mobile, Personalized Search Results>
diff --git a/test/diagrams/scanned_easy/diagrams_231.txt b/test/diagrams/scanned_easy/diagrams_231.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c143aab0db533f272e4b456b3d6d29d9ad07e384
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_231.txt
@@ -0,0 +1,21 @@
+<Algorithm Updates Monitoring, connectedTo, Semantic Search>
+<Google Analytics Integration, connectedTo, User Intent Understanding>
+<Indexing Content, connectedTo, International SEO>
+<Indexing Content, connectedTo, Ranking Algorithms>
+<International SEO, connectedTo, Local SEO>
+<International SEO, connectedTo, Negative SEO Prevention>
+<International SEO, connectedTo, Ranking Algorithms>
+<International SEO, uses schema markup, Ranking Algorithms>
+<Keyword Research, connectedTo, Off_Page SEO>
+<Local SEO, optimizes for mobile, Keyword Research>
+<Negative SEO Prevention, analyzes competitors, Ranking Algorithms>
+<Off_Page SEO, connectedTo, Google Analytics Integration>
+<Query Processing, connectedTo, Algorithm Updates Monitoring>
+<Query Processing, connectedTo, Semantic Search>
+<Query Processing, processes queries, Google Analytics Integration>
+<Ranking Algorithms, manages international SEO, Query Processing>
+<Search Result Display, connectedTo, Google Analytics Integration>
+<Semantic Search, connectedTo, Technical SEO>
+<Technical SEO, manages technical SEO, Search Result Display>
+<User Intent Understanding, connectedTo, Video Search>
+<Video Search, connectedTo, Schema Markup Implementation>
diff --git a/test/diagrams/scanned_easy/diagrams_233.txt b/test/diagrams/scanned_easy/diagrams_233.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f1ede6782f3f58383056ef81263d6a2cdabe816a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_233.txt
@@ -0,0 +1,19 @@
+<Attribute Management, connectedTo, Blockchain_based Identity>
+<Biometric Authentication, manages passwords, Attribute Management>
+<Customer Identity and Access Management, connectedTo, Password Management>
+<Customer Identity and Access Management, implements adaptive authentication, Portable Identities>
+<Digital Signatures, connectedTo, Multi_Factor Authentication>
+<Federated Identity Management, connectedTo, Digital Signatures>
+<Federated Identity Management, connectedTo, Multi_Factor Authentication>
+<Federated Identity Management, detects fraud, Blockchain_based Identity>
+<Federated Identity Management, issues certificates, Identity Lifecycle Management>
+<Fraud Detection in Identity, connectedTo, Identity Lifecycle Management>
+<Identity Lifecycle Management, connectedTo, Biometric Authentication>
+<Multi_Factor Authentication, connectedTo, Blockchain_based Identity>
+<Multi_Factor Authentication, connectedTo, Customer Identity and Access Management>
+<Password Management, manages wallets, Privileged Access Management>
+<Portable Identities, connectedTo, Single Sign_On>
+<Privileged Access Management, connectedTo, Attribute Management>
+<Privileged Access Management, connectedTo, Fraud Detection in Identity>
+<Privileged Access Management, issues verifiable credentials, Biometric Authentication>
+<Single Sign_On, connectedTo, Customer Identity and Access Management>
diff --git a/test/diagrams/scanned_easy/diagrams_234.dot b/test/diagrams/scanned_easy/diagrams_234.dot
new file mode 100644
index 0000000000000000000000000000000000000000..70fdd357105aa41c7d21d05ce9f940fe8a6f29fd
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_234.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=BT
+	N0 [label="Risk_Based Authentication" color="#FFDA4E" fillcolor="#FFE88D" shape=multipledocuments style=filled]
+	N1 [label="Authentication" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	N2 [label="Digital Signatures" color="#FFDA4E" fillcolor="#FFE88D" shape=rectangle style=filled]
+	N3 [label="Fraud Detection in Identity" color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	N4 [label="Federated Identity Management" color="#FFE470" fillcolor="#FFFAE0" shape=database style=filled]
+	N5 [label="Privacy Management" color="#9575CD" fillcolor="#EDE7F6" shape=multipledocuments style=filled]
+	N6 [label="Digital Certificates" color="#FFE470" fillcolor="#FFFAE0" shape=rectangle style=filled]
+	N7 [label="Attribute Management" color="#FFDA4E" fillcolor="#FFE88D" shape=database style=filled]
+	S0 [label="" color="#9575CD" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Portable Identities {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Portable Identities"
+		nest0_0 [label="Social Login Integration" color="#FFDA4E" fillcolor="#FFE88D" shape=multipledocuments style=filled]
+		nest0_1 [label="Identity Threat Detection and Response" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+		nest0_2 [label="Workforce Identity Management" color="#FFE470" fillcolor="#FFFAE0" shape=action style=filled]
+		nest0_3 [label="Decentralized Identifiers" color="#FFE470" fillcolor="#FFFAE0" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#FFE470" penwidth=1.5 style=solid label="performs KYCs" dir=forward]
+	N1 -> N2 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="audits access" dir=forward]
+	nest0_1 -> nest0_2 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N5 [color="#FFE470" penwidth=1.5 style=dashed label="revokes access" dir=forward]
+	N2 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FFE470" penwidth=1.5 style=solid label="implements SSO" dir=forward]
+	N4 -> M0 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_234.txt b/test/diagrams/scanned_easy/diagrams_234.txt
new file mode 100644
index 0000000000000000000000000000000000000000..93bafb722eadd917f26ef243638860b48f1e86b2
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_234.txt
@@ -0,0 +1,17 @@
+<Authentication, connectedTo, Digital Signatures>
+<Decentralized Identifiers, revokes access, Privacy Management>
+<Digital Certificates, connectedTo, Attribute Management>
+<Digital Signatures, connectedTo, Digital Certificates>
+<Digital Signatures, connectedTo, Federated Identity Management>
+<Digital Signatures, connectedTo, Fraud Detection in Identity>
+<Digital Signatures, connectedTo, Privacy Management>
+<Digital Signatures, implements SSO, Attribute Management>
+<Federated Identity Management, connectedTo, Digital Certificates>
+<Federated Identity Management, connectedTo, Privacy Management>
+<Fraud Detection in Identity, connectedTo, Federated Identity Management>
+<Identity Threat Detection and Response, connectedTo, Workforce Identity Management>
+<Privacy Management, connectedTo, Digital Certificates>
+<Privacy Management, connectedTo, Social Login Integration>
+<Risk_Based Authentication, performs KYCs, Authentication>
+<Social Login Integration, audits access, Identity Threat Detection and Response>
+<Workforce Identity Management, connectedTo, Decentralized Identifiers>
diff --git a/test/diagrams/scanned_easy/diagrams_235.dot b/test/diagrams/scanned_easy/diagrams_235.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b563c46824534e34f5d7ae892e594f96d24d095f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_235.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=LR
+	N0 [label="Bootcamp Development" color="#2196F3" fillcolor="#BBDEFB" shape=rectangle style=filled]
+	N1 [label="Feedback and Grading" color="#03A9F4" fillcolor="#B3E5FC" shape=vnode_shape style=filled]
+	N2 [label="AI in Online Education" color="#673AB7" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N3 [label="Collaborative Projects" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	N4 [label="Parent or Guardian Communication" color="#03A9F4" fillcolor="#B3E5FC" shape=rect style=filled]
+	N5 [label="Assessment Design" color="#03A9F4" fillcolor="#B3E5FC" shape=predefinedprocess style=filled]
+	N6 [label="Gamification in Education" color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N7 [label="Instructor Training" color="#03A9F4" fillcolor="#B3E5FC" shape=inputoutput style=filled]
+	N8 [label="Interactive Learning Activities" color="#673AB7" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N9 [label="Content Creation" color="#03A9F4" fillcolor="#B3E5FC" shape=action style=filled]
+	M0 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#03A9F4" fillcolor="#B3E5FC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Student Progress Tracking {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Student Progress Tracking"
+		nest0_0 [label="Virtual Labs and Simulations" color="#2196F3" fillcolor="#BBDEFB" shape=action style=filled]
+		nest0_1 [label="Accessibility Features" color="#673AB7" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+		nest0_2 [label="Technical Support for Students" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#673AB7" penwidth=1.5 style=solid label="develops platforms" dir=forward]
+	N1 -> N2 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#673AB7" penwidth=1.5 style=dashed label="trains educators" dir=forward]
+	N7 -> N8 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#2196F3" penwidth=1.5 style=dashed label="uses blockchain for credentials" dir=forward]
+	nest0_1 -> nest0_2 [color="#2196F3" penwidth=1.5 style=solid label="secures platforms" dir=forward]
+	N7 -> nest0_0 [color="#000000" penwidth=1.5 style=solid label="delivers lectures" dir=forward]
+	nest0_2 -> N2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	M1 -> N9 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N0 -> nest0_1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_235.txt b/test/diagrams/scanned_easy/diagrams_235.txt
new file mode 100644
index 0000000000000000000000000000000000000000..09353713c7d00881641d56a94f3a339dad76f22e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_235.txt
@@ -0,0 +1,18 @@
+<AI in Online Education, connectedTo, Collaborative Projects>
+<Accessibility Features, secures platforms, Technical Support for Students>
+<Assessment Design, connectedTo, Content Creation>
+<Assessment Design, connectedTo, Gamification in Education>
+<Bootcamp Development, connectedTo, Accessibility Features>
+<Bootcamp Development, develops platforms, Feedback and Grading>
+<Collaborative Projects, connectedTo, Parent or Guardian Communication>
+<Feedback and Grading, connectedTo, AI in Online Education>
+<Feedback and Grading, connectedTo, Instructor Training>
+<Gamification in Education, trains educators, Instructor Training>
+<Instructor Training, connectedTo, Interactive Learning Activities>
+<Instructor Training, delivers lectures, Virtual Labs and Simulations>
+<Interactive Learning Activities, connectedTo, Content Creation>
+<Parent or Guardian Communication, connectedTo, Assessment Design>
+<Parent or Guardian Communication, connectedTo, Content Creation>
+<Parent or Guardian Communication, connectedTo, Instructor Training>
+<Technical Support for Students, connectedTo, AI in Online Education>
+<Virtual Labs and Simulations, uses blockchain for credentials, Accessibility Features>
diff --git a/test/diagrams/scanned_easy/diagrams_237.dot b/test/diagrams/scanned_easy/diagrams_237.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e33184f59841fc91df7d896e7333955b793a8ca2
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_237.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=RL
+	N0 [label="Discussion Forum Moderation" color="#FFB2A5" fillcolor="#FFDCD6" shape=inputoutput style=filled]
+	N1 [label="Instructor Training" color="#DCE775" fillcolor="#FCFCE7" shape=inputoutput style=filled]
+	N2 [label="Collaborative Projects" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+	N3 [label="Micro_credential Programs" color="#DCE775" fillcolor="#FCFCE7" shape=parallelogram style=filled]
+	N4 [label="Certification Issuance" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+	N5 [label="Competency_Based Education" color="#FFB2A5" fillcolor="#FFDCD6" shape=rectangle style=filled]
+	N6 [label="Curriculum Development" color="#7E57C2" fillcolor="#EDE7F6" shape=document style=filled]
+	N7 [label="Open Educational Resources Integration" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N8 [label="Course Evaluation" color="#FFB2A5" fillcolor="#FFDCD6" shape=parallelogram style=filled]
+	N9 [label="Online Tutoring" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	N10 [label="Bootcamp Development" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	S0 [label="" color="#7E57C2" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#DCE775" fillcolor="#FCFCE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Enrollment and Retention Strategies {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Enrollment and Retention Strategies"
+		nest0_0 [label="Feedback and Grading" color="#DCE775" fillcolor="#FCFCE7" shape=database style=filled]
+		nest0_1 [label="Accreditation Management" color="#7E57C2" fillcolor="#EDE7F6" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=dashed label="uses adaptive systems" dir=forward]
+	N1 -> N2 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFB2A5" penwidth=1.5 style=dashed label="uses AR or VR for learning" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest0_0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N7 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#DCE775" penwidth=1.5 style=dashed label="engages parents" dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid label="designs content" dir=forward]
+	M0 -> N4 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_237.txt b/test/diagrams/scanned_easy/diagrams_237.txt
new file mode 100644
index 0000000000000000000000000000000000000000..bc931aa819536775d9e2a382f9d5a4382e655f38
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_237.txt
@@ -0,0 +1,17 @@
+<Accreditation Management, connectedTo, Open Educational Resources Integration>
+<Certification Issuance, connectedTo, Competency_Based Education>
+<Collaborative Projects, connectedTo, Micro_credential Programs>
+<Competency_Based Education, uses AR or VR for learning, Curriculum Development>
+<Course Evaluation, connectedTo, Feedback and Grading>
+<Course Evaluation, connectedTo, Online Tutoring>
+<Curriculum Development, connectedTo, Open Educational Resources Integration>
+<Discussion Forum Moderation, connectedTo, Bootcamp Development>
+<Discussion Forum Moderation, connectedTo, Competency_Based Education>
+<Discussion Forum Moderation, engages parents, Certification Issuance>
+<Discussion Forum Moderation, uses adaptive systems, Instructor Training>
+<Feedback and Grading, connectedTo, Accreditation Management>
+<Instructor Training, connectedTo, Collaborative Projects>
+<Instructor Training, designs content, Certification Issuance>
+<Micro_credential Programs, connectedTo, Certification Issuance>
+<Online Tutoring, connectedTo, Bootcamp Development>
+<Open Educational Resources Integration, connectedTo, Course Evaluation>
diff --git a/test/diagrams/scanned_easy/diagrams_239.txt b/test/diagrams/scanned_easy/diagrams_239.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1e47a4425250d7d29a814f84f4c83836b5fb1d1e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_239.txt
@@ -0,0 +1,15 @@
+<Certificate of Completion Issuance, connectedTo, Assessment Creation>
+<Certificate of Completion Issuance, connectedTo, Completion Rate Optimization>
+<Certificate of Completion Issuance, offers pathways, Instructor Recruitment for MOOCs>
+<Completion Rate Optimization, connectedTo, Instructor Recruitment for MOOCs>
+<Completion Rate Optimization, connectedTo, Self_Paced Learning Tracks>
+<Completion Rate Optimization, promotes courses, Marketing to Global Audience>
+<Course Audit Options, connectedTo, Specialization or Professional Certificate Programs>
+<Course Pilot Testing, connectedTo, University Partnerships>
+<Discussion Forum Management, connectedTo, Assessment Creation>
+<Instructor Recruitment for MOOCs, expands reach, Course Pilot Testing>
+<Learner Analytics, builds communities, Discussion Forum Management>
+<Marketing to Global Audience, connectedTo, Course Audit Options>
+<Self_Paced Learning Tracks, connectedTo, Marketing to Global Audience>
+<Specialization or Professional Certificate Programs, tracks completion, Learner Analytics>
+<University Partnerships, connectedTo, Specialization or Professional Certificate Programs>
diff --git a/test/diagrams/scanned_easy/diagrams_24.txt b/test/diagrams/scanned_easy/diagrams_24.txt
new file mode 100644
index 0000000000000000000000000000000000000000..de77d5cae559665766f6b8b096a7a15a2ff21c70
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_24.txt
@@ -0,0 +1,12 @@
+<City_wide Sensor Network Deployment, predicts, Smart Lighting>
+<Energy Grid Management, connectedTo, Smart Traffic Lights>
+<Public Transport Tracking, collects, Energy Grid Management>
+<Smart Education Initiatives, connectedTo, Smart Water Meters>
+<Smart Lighting, connectedTo, Public Transport Tracking>
+<Smart Traffic Lights, connectedTo, Smart Education Initiatives>
+<Smart Traffic Lights, connects, Sustainable Resource Management>
+<Smart Water Meters, measures, Urban Agriculture Support>
+<Sustainable Resource Management, complies, Citizen Engagement Platform>
+<Traffic Flow Optimization, connectedTo, Smart Education Initiatives>
+<Traffic Flow Optimization, upgrades, Urban Agriculture Support>
+<Urban Agriculture Support, connectedTo, City_wide Sensor Network Deployment>
diff --git a/test/diagrams/scanned_easy/diagrams_240.txt b/test/diagrams/scanned_easy/diagrams_240.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6c48d09bcafdd6c56e0219d449e4ec0f850469aa
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_240.txt
@@ -0,0 +1,17 @@
+<Assessment Creation, connectedTo, Discussion Forum Management>
+<Continuous Course Improvement, connectedTo, Learner Analytics>
+<Discussion Forum Management, connectedTo, Continuous Course Improvement>
+<Industry Collaboration for Content, connectedTo, Assessment Creation>
+<Learner Analytics, connectedTo, Course Promotion>
+<Learner Analytics, hosts platforms, Marketing to Global Audience>
+<Learner Analytics, offers assignments, Learner Feedback Analysis>
+<Learner Analytics, provides technical support, Course Promotion>
+<Learner Feedback Analysis, connectedTo, Course Promotion>
+<Learner Feedback Analysis, connectedTo, Industry Collaboration for Content>
+<Marketing to Global Audience, connectedTo, Course Promotion>
+<Marketing to Global Audience, connectedTo, Learner Feedback Analysis>
+<Platform Selection, connectedTo, Course Promotion>
+<Platform Selection, connectedTo, Learner Analytics>
+<Platform Selection, connectedTo, Learner Feedback Analysis>
+<Platform Selection, connectedTo, Marketing to Global Audience>
+<Platform Selection, manages registrations, Course Promotion>
diff --git a/test/diagrams/scanned_easy/diagrams_242.dot b/test/diagrams/scanned_easy/diagrams_242.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5bcdc28262b05117990be8587958d8de8a6f1267
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_242.dot
@@ -0,0 +1,63 @@
+digraph {
+	rankdir=TB
+	N0 [label="Medical History" color="#FFE470" fillcolor="#FFFAE0" shape=preparation style=filled]
+	N1 [label="Diagnosis" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	N2 [label="Follow_up" color="#FFE470" fillcolor="#FFFAE0" shape=document style=filled]
+	N3 [label="Medication Dispensing" color="#A188D0" fillcolor="#DACBE3" shape=document style=filled]
+	N4 [label="Patient Intake" color="#E91E63" fillcolor="#F8BBD0" shape=action style=filled]
+	N5 [label="Epidemiological Tracking" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	N6 [label="Symptom Monitoring" color="#E91E63" fillcolor="#F8BBD0" shape=multipledocuments style=filled]
+	N7 [label="Pharmacy Order" color="#FFE470" fillcolor="#FFFAE0" shape=diamond style=filled]
+	N8 [label="Vaccination" color="#E91E63" fillcolor="#F8BBD0" shape=preparation style=filled]
+	N9 [label="Triage" color="#E91E63" fillcolor="#F8BBD0" shape=rectangle style=filled]
+	N10 [label="Telemedicine Consultation" color="#A188D0" fillcolor="#DACBE3" shape=document style=filled]
+	S1 [label="" color="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#A188D0" fillcolor="#DACBE3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Wound Care {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Wound Care"
+		nest0_0 [label="Mental Health Assessment" color="#FFE470" fillcolor="#FFFAE0" shape=parallelogram style=filled]
+		nest0_1 [label="Physical Examination" color="#A188D0" fillcolor="#DACBE3" shape=action style=filled]
+		nest0_2 [label="Imaging Scan" color="#FFE470" fillcolor="#FFFAE0" shape=hexagon style=filled]
+		nest0_3 [label="Device Implantation" color="#A188D0" fillcolor="#DACBE3" shape=multipledocuments style=filled]
+	}
+	subgraph cluster_Patient Education {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Patient Education"
+		nest1_0 [label="Emergency Response" color="#A188D0" fillcolor="#DACBE3" shape=multipledocuments style=filled]
+		nest1_1 [label="Anesthesia Administration" color="#A188D0" fillcolor="#DACBE3" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#E91E63" penwidth=1.5 style=solid label="transports" dir=forward]
+	N1 -> N2 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N8 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest1_0 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N2 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#E91E63" penwidth=1.5 style=dashed label="responds" dir=forward]
+	N1 -> M0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#E91E63" penwidth=1.5 style=dashed label="surveys" dir=forward]
+	N0 -> M1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N4 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_243.dot b/test/diagrams/scanned_easy/diagrams_243.dot
new file mode 100644
index 0000000000000000000000000000000000000000..453a59d2781ad473a874d9c932e2f06af33018ac
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_243.dot
@@ -0,0 +1,85 @@
+digraph {
+	rankdir=LR
+	N0 [label="Automated Assembly" color="#BA68C8" fillcolor="#F3E5F5" shape=database style=filled]
+	N1 [label="Serialization" color="#4DD0E1" fillcolor="#C9F0F0" shape=rect style=filled]
+	N2 [label="Product Design" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N3 [label="Design Review" color="#7E57C2" fillcolor="#EDE7F6" shape=parallelogram style=filled]
+	N4 [label="Yield Optimization" color="#4DD0E1" fillcolor="#C9F0F0" shape=hexagon style=filled]
+	N5 [label="Factory Layout Planning" color="#7E57C2" fillcolor="#EDE7F6" shape=database style=filled]
+	N6 [label="Procurement" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+	N7 [label="Welding" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+	N8 [label="Component Sourcing" color="#BA68C8" fillcolor="#F3E5F5" shape=box style=filled]
+	N9 [label="Ergonomics Assessment" color="#4DD0E1" fillcolor="#C9F0F0" shape=rect style=filled]
+	N10 [label="Batch Tracking" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N11 [label="Assembly" color="#7E57C2" fillcolor="#EDE7F6" shape=predefinedprocess style=filled]
+	N12 [label="Supplier Qualification" color="#BA68C8" fillcolor="#F3E5F5" shape=diamond style=filled]
+	N13 [label="Inventory Check" color="#BA68C8" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	N14 [label="Recycling Process" color="#7E57C2" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+	N15 [label="Automated Guided Vehicle Operation" color="#7E57C2" fillcolor="#EDE7F6" shape=rect style=filled]
+	N16 [label="Defect Analysis" color="#BA68C8" fillcolor="#F3E5F5" shape=rect style=filled]
+	S0 [label="" color="#4DD0E1" fillcolor="#C9F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#7E57C2" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#4DD0E1" fillcolor="#C9F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#4DD0E1" fillcolor="#C9F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#4DD0E1" fillcolor="#C9F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Raw Material {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Raw Material"
+		nest0_0 [label="Shipping" color="#7E57C2" fillcolor="#EDE7F6" shape=parallelogram style=filled]
+		nest0_1 [label="Logistics Planning" color="#4DD0E1" fillcolor="#C9F0F0" shape=predefinedprocess style=filled]
+		nest0_2 [label="Safety Audit" color="#4DD0E1" fillcolor="#C9F0F0" shape=database style=filled]
+		nest0_3 [label="Final Testing" color="#BA68C8" fillcolor="#F3E5F5" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Supply Chain Synchronization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Supply Chain Synchronization"
+		nest1_0 [label="Painting" color="#BA68C8" fillcolor="#F3E5F5" shape=preparation style=filled]
+		nest1_1 [label="Bills of Material Generation" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+		nest1_2 [label="Work_in_Progress Monitoring" color="#4DD0E1" fillcolor="#C9F0F0" shape=preparation style=filled]
+		nest1_3 [label="Storage" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid label="calibrates" dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest1_0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N1 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> S1 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N5 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N13 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N8 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N8 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_243.txt b/test/diagrams/scanned_easy/diagrams_243.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f0d4fb300ab791f0060c0d966abbbaac6f7749d6
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_243.txt
@@ -0,0 +1,37 @@
+<Assembly, connectedTo, Automated Guided Vehicle Operation>
+<Assembly, connectedTo, Inventory Check>
+<Assembly, connectedTo, Supplier Qualification>
+<Automated Assembly, connectedTo, Batch Tracking>
+<Automated Assembly, connectedTo, Factory Layout Planning>
+<Automated Assembly, connectedTo, Inventory Check>
+<Automated Assembly, connectedTo, Serialization>
+<Automated Guided Vehicle Operation, connectedTo, Defect Analysis>
+<Batch Tracking, connectedTo, Assembly>
+<Bills of Material Generation, connectedTo, Work_in_Progress Monitoring>
+<Component Sourcing, connectedTo, Ergonomics Assessment>
+<Design Review, connectedTo, Component Sourcing>
+<Design Review, connectedTo, Painting>
+<Design Review, connectedTo, Yield Optimization>
+<Ergonomics Assessment, connectedTo, Batch Tracking>
+<Factory Layout Planning, connectedTo, Batch Tracking>
+<Factory Layout Planning, connectedTo, Procurement>
+<Factory Layout Planning, connectedTo, Recycling Process>
+<Final Testing, connectedTo, Design Review>
+<Inventory Check, calibrates, Recycling Process>
+<Logistics Planning, connectedTo, Safety Audit>
+<Painting, connectedTo, Bills of Material Generation>
+<Procurement, connectedTo, Component Sourcing>
+<Procurement, connectedTo, Welding>
+<Product Design, connectedTo, Component Sourcing>
+<Product Design, connectedTo, Design Review>
+<Recycling Process, connectedTo, Automated Guided Vehicle Operation>
+<Safety Audit, connectedTo, Final Testing>
+<Serialization, connectedTo, Product Design>
+<Shipping, connectedTo, Logistics Planning>
+<Storage, connectedTo, Serialization>
+<Supplier Qualification, connectedTo, Inventory Check>
+<Welding, connectedTo, Component Sourcing>
+<Work_in_Progress Monitoring, connectedTo, Storage>
+<Yield Optimization, connectedTo, Component Sourcing>
+<Yield Optimization, connectedTo, Factory Layout Planning>
+<Yield Optimization, connectedTo, Shipping>
diff --git a/test/diagrams/scanned_easy/diagrams_244.txt b/test/diagrams/scanned_easy/diagrams_244.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e3e8146e8cd4df8162896536741a91c4dd196c36
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_244.txt
@@ -0,0 +1,26 @@
+<Academic Review, connectedTo, Student Application>
+<Alumni Network Management, connectedTo, Document Verification>
+<Career Services, connectedTo, Research Grant Application>
+<Certificate Issuance, connectedTo, Scholarship Evaluation>
+<Course Material Preparation, connectedTo, Peer Tutoring>
+<Digital Resource Management, connectedTo, Document Verification>
+<Faculty Recruitment, connectedTo, Alumni Network Management>
+<Faculty Recruitment, connectedTo, Document Verification>
+<Faculty Recruitment, registers, Field Trip Coordination>
+<Field Trip Coordination, connectedTo, Alumni Network Management>
+<Field Trip Coordination, integrates, Document Verification>
+<Peer Tutoring, connectedTo, Academic Review>
+<Research Grant Application, connectedTo, Alumni Network Management>
+<Research Grant Application, connectedTo, Document Verification>
+<Research Grant Application, connectedTo, Special Education Support>
+<Research Grant Application, plans, Study Abroad Program>
+<Scholarship Evaluation, researches, Digital Resource Management>
+<Special Education Support, connectedTo, Student Application>
+<Student Application, awards, Document Verification>
+<Student Application, connectedTo, Document Verification>
+<Student Application, connectedTo, Faculty Recruitment>
+<Student Application, connectedTo, Field Trip Coordination>
+<Student Application, connectedTo, Study Abroad Program>
+<Study Abroad Program, connectedTo, Certificate Issuance>
+<Study Abroad Program, connectedTo, Course Material Preparation>
+<Study Abroad Program, connectedTo, Faculty Recruitment>
diff --git a/test/diagrams/scanned_easy/diagrams_245.txt b/test/diagrams/scanned_easy/diagrams_245.txt
new file mode 100644
index 0000000000000000000000000000000000000000..844faca150fde549b53288ab414c0f6e2f0f0e38
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_245.txt
@@ -0,0 +1,34 @@
+<Affiliate Marketing, connectedTo, Cart Abandonment>
+<Affiliate Marketing, connectedTo, Cross_selling Recommendation>
+<Affiliate Marketing, connectedTo, Customer Segmentation>
+<Affiliate Marketing, connectedTo, Invoice Generation>
+<Cart Abandonment, connectedTo, Refund Process>
+<Checkout, connectedTo, Package Return>
+<Cross_selling Recommendation, connectedTo, Warehouse Management>
+<Customer Segmentation, connectedTo, Mobile App Interaction>
+<Delivery Rescheduling, connectedTo, Cart Abandonment>
+<Delivery Rescheduling, connectedTo, Payment>
+<Delivery Rescheduling, secures, Cross_selling Recommendation>
+<Delivery Tracking, inventories, User Account Management>
+<Inventory Update, connectedTo, Payment Gateway Reconciliation>
+<Invoice Generation, connectedTo, Cart Abandonment>
+<Invoice Generation, connectedTo, Cross_selling Recommendation>
+<Invoice Generation, connectedTo, Warehouse Management>
+<Mobile App Interaction, connectedTo, Cart Abandonment>
+<Package Return, adjusts, Cart Abandonment>
+<Package Return, personalizes, Shipment>
+<Payment, confirms, Return Merchandise Authorization>
+<Payment Gateway Reconciliation, connectedTo, Delivery Tracking>
+<Promotion Application, connectedTo, Affiliate Marketing>
+<Promotion Application, connectedTo, Cart Abandonment>
+<Promotion Application, connectedTo, Cross_selling Recommendation>
+<Return Merchandise Authorization, browses, Inventory Update>
+<Return Merchandise Authorization, connectedTo, Checkout>
+<Shipment, connectedTo, Invoice Generation>
+<Shipment, connectedTo, Promotion Application>
+<Shipment, connectedTo, Refund Process>
+<Shipment, connectedTo, Warehouse Management>
+<Social Media Integration, connectedTo, Supplier Onboarding>
+<Supplier Onboarding, compares, Delivery Rescheduling>
+<User Account Management, connectedTo, Shipment>
+<Warehouse Management, connectedTo, Cart Abandonment>
diff --git a/test/diagrams/scanned_easy/diagrams_246.dot b/test/diagrams/scanned_easy/diagrams_246.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c8dbe46cdef1649d1fd2b170e3aebc13f990022d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_246.dot
@@ -0,0 +1,87 @@
+digraph {
+	rankdir=RL
+	N0 [label="Maintenance Check" color="#94C0C0" fillcolor="#CADEDE" shape=action style=filled]
+	N1 [label="Vehicle Assignment" color="#94C0C0" fillcolor="#CADEDE" shape=preparation style=filled]
+	N2 [label="Weather Impact Assessment" color="#94C0C0" fillcolor="#CADEDE" shape=action style=filled]
+	N3 [label="Ticket Purchase" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N4 [label="Navigation Update" color="#673AB7" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N5 [label="Fleet Management" color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N6 [label="Location Input" color="#A1887F" fillcolor="#EFEBE9" shape=hexagon style=filled]
+	N7 [label="Arrival" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N8 [label="Tunnel Monitoring" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N9 [label="Fueling" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	N10 [label="Luggage Handling" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N11 [label="Public Transport Ticketing" color="#A1887F" fillcolor="#EFEBE9" shape=database style=filled]
+	N12 [label="Emergency Landing" color="#A1887F" fillcolor="#EFEBE9" shape=ellipse style=filled]
+	N13 [label="Delay Alert" color="#94C0C0" fillcolor="#CADEDE" shape=inputoutput style=filled]
+	N14 [label="Road Network Management" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N15 [label="Security Check" color="#94C0C0" fillcolor="#CADEDE" shape=database style=filled]
+	S0 [label="" color="#94C0C0" fillcolor="#CADEDE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#A1887F" fillcolor="#EFEBE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#A1887F" fillcolor="#EFEBE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#94C0C0" fillcolor="#CADEDE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#94C0C0" fillcolor="#CADEDE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#A1887F" fillcolor="#EFEBE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Platform Assignment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Platform Assignment"
+		nest0_0 [label="Traffic Monitoring" color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+		nest0_1 [label="Ride_sharing Request" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+		nest0_2 [label="Driver Allocation" color="#A1887F" fillcolor="#EFEBE9" shape=rect style=filled]
+		nest0_3 [label="Train Dispatch" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+	}
+	subgraph cluster_Parking Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Parking Management"
+		nest1_0 [label="Bus Stop Management" color="#673AB7" fillcolor="#D1C4E9" shape=database style=filled]
+		nest1_1 [label="Accident Reconstruction" color="#673AB7" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+		nest1_2 [label="Passenger Boarding Pass Issuance" color="#94C0C0" fillcolor="#CADEDE" shape=database style=filled]
+		nest1_3 [label="Boarding" color="#673AB7" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N10 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest1_0 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N14 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N4 -> S0 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> S2 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N12 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N15 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N4 -> M2 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	M2 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_246.txt b/test/diagrams/scanned_easy/diagrams_246.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c51b8e6ce51c364f8bd03136fac8954104ed4f33
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_246.txt
@@ -0,0 +1,38 @@
+<Accident Reconstruction, connectedTo, Passenger Boarding Pass Issuance>
+<Arrival, connectedTo, Tunnel Monitoring>
+<Boarding, connectedTo, Road Network Management>
+<Bus Stop Management, connectedTo, Accident Reconstruction>
+<Delay Alert, connectedTo, Road Network Management>
+<Driver Allocation, connectedTo, Train Dispatch>
+<Emergency Landing, connectedTo, Delay Alert>
+<Fleet Management, connectedTo, Location Input>
+<Fleet Management, connectedTo, Traffic Monitoring>
+<Fueling, connectedTo, Bus Stop Management>
+<Fueling, connectedTo, Luggage Handling>
+<Location Input, connectedTo, Arrival>
+<Location Input, connectedTo, Road Network Management>
+<Location Input, connectedTo, Tunnel Monitoring>
+<Luggage Handling, connectedTo, Delay Alert>
+<Luggage Handling, connectedTo, Emergency Landing>
+<Luggage Handling, connectedTo, Public Transport Ticketing>
+<Maintenance Check, connectedTo, Fleet Management>
+<Maintenance Check, connectedTo, Location Input>
+<Maintenance Check, connectedTo, Security Check>
+<Maintenance Check, connectedTo, Vehicle Assignment>
+<Navigation Update, connectedTo, Delay Alert>
+<Navigation Update, connectedTo, Fleet Management>
+<Navigation Update, connectedTo, Location Input>
+<Navigation Update, connectedTo, Public Transport Ticketing>
+<Passenger Boarding Pass Issuance, connectedTo, Boarding>
+<Public Transport Ticketing, connectedTo, Emergency Landing>
+<Ride_sharing Request, connectedTo, Driver Allocation>
+<Road Network Management, connectedTo, Security Check>
+<Ticket Purchase, connectedTo, Fleet Management>
+<Ticket Purchase, connectedTo, Navigation Update>
+<Traffic Monitoring, connectedTo, Ride_sharing Request>
+<Train Dispatch, connectedTo, Luggage Handling>
+<Tunnel Monitoring, connectedTo, Fueling>
+<Vehicle Assignment, connectedTo, Fleet Management>
+<Vehicle Assignment, connectedTo, Weather Impact Assessment>
+<Weather Impact Assessment, connectedTo, Security Check>
+<Weather Impact Assessment, connectedTo, Ticket Purchase>
diff --git a/test/diagrams/scanned_easy/diagrams_247.dot b/test/diagrams/scanned_easy/diagrams_247.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0312238cee16b06b8bdb0e8aa6e8b42fc5c4a141
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_247.dot
@@ -0,0 +1,63 @@
+digraph {
+	rankdir=TB
+	N0 [label="Consumption Logging" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	N1 [label="Voltage Regulation" color="#FFDA4E" fillcolor="#FFE88D" shape=database style=filled]
+	N2 [label="Transformer Station" color="#FFD54F" fillcolor="#FFF8E1" shape=action style=filled]
+	N3 [label="Wind Turbine Monitoring" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	N4 [label="Power Plant" color="#FFD54F" fillcolor="#FFF8E1" shape=diamond style=filled]
+	N5 [label="Load Distribution" color="#7E57C2" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N6 [label="Grid Modernization" color="#FFD54F" fillcolor="#FFF8E1" shape=multipledocuments style=filled]
+	N7 [label="Alert Dispatch" color="#7E57C2" fillcolor="#D1C4E9" shape=document style=filled]
+	N8 [label="Hydropower Generation" color="#FFD54F" fillcolor="#FFF8E1" shape=vnode_shape style=filled]
+	N9 [label="Nuclear Reactor Control" color="#7E57C2" fillcolor="#D1C4E9" shape=action style=filled]
+	N10 [label="Cybersecurity for Grid" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N11 [label="Sensor Reading" color="#FFD54F" fillcolor="#FFF8E1" shape=predefinedprocess style=filled]
+	N12 [label="Power Purchase" color="#7E57C2" fillcolor="#D1C4E9" shape=action style=filled]
+	S0 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFD54F" fillcolor="#FFF8E1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Pipeline Monitoring {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Pipeline Monitoring"
+		nest0_0 [label="Usage Billing" color="#FFDA4E" fillcolor="#FFE88D" shape=predefinedprocess style=filled]
+		nest0_1 [label="Outage Detection" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	}
+	subgraph cluster_Energy Storage {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Energy Storage"
+		nest1_0 [label="Fuel Delivery" color="#7E57C2" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+		nest1_1 [label="Grid Balancing" color="#FFDA4E" fillcolor="#FFE88D" shape=database style=filled]
+	}
+	N0 -> N1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFD54F" penwidth=1.5 style=dashed label="detects" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> nest0_0 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N11 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest1_0 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N12 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_248.dot b/test/diagrams/scanned_easy/diagrams_248.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e81df453f818348fcc6e61b025b19c63e05f6168
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_248.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=TB
+	N0 [label="Bail Hearing" color="#A1D7CD" fillcolor="#EDF5F3" shape=multipledocuments style=filled]
+	N1 [label="Enforcement" color="#FFB74D" fillcolor="#FFF3E0" shape=rect style=filled]
+	N2 [label="Jury Selection" color="#FFB2A5" fillcolor="#FFDCD6" shape=diamond style=filled]
+	N3 [label="Intel Property Licensing" color="#FFB74D" fillcolor="#FFF3E0" shape=action style=filled]
+	N4 [label="Copyright Infringement" color="#FFB74D" fillcolor="#FFF3E0" shape=action style=filled]
+	N5 [label="Contract Review" color="#A1D7CD" fillcolor="#EDF5F3" shape=preparation style=filled]
+	N6 [label="Child Custody" color="#FFB74D" fillcolor="#FFF3E0" shape=preparation style=filled]
+	N7 [label="Discovery Process" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N8 [label="Patent Application" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N9 [label="Appeal Submission" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	N10 [label="Case Filing" color="#FFB2A5" fillcolor="#FFDCD6" shape=rectangle style=filled]
+	N11 [label="Estate Planning" color="#FFB74D" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	N12 [label="Plea Bargain" color="#FFB2A5" fillcolor="#FFDCD6" shape=multipledocuments style=filled]
+	N13 [label="Court Order Execution" color="#FFB74D" fillcolor="#FFF3E0" shape=vnode_shape style=filled]
+	S0 [label="" color="#A1D7CD" fillcolor="#EDF5F3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#A1D7CD" fillcolor="#EDF5F3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Legal Aid Assistance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Legal Aid Assistance"
+		nest0_0 [label="Regulatory Compliance Review" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+		nest0_1 [label="Trial Session" color="#A1D7CD" fillcolor="#EDF5F3" shape=predefinedprocess style=filled]
+		nest0_2 [label="Evidence Collection" color="#FFB74D" fillcolor="#FFF3E0" shape=inputoutput style=filled]
+		nest0_3 [label="Bankruptcy Filing" color="#A1D7CD" fillcolor="#EDF5F3" shape=preparation style=filled]
+	}
+	subgraph cluster_Corporate Formation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Corporate Formation"
+		nest1_0 [label="Immigration Petition" color="#A1D7CD" fillcolor="#EDF5F3" shape=document style=filled]
+		nest1_1 [label="Pre_Trial Hearing" color="#A1D7CD" fillcolor="#EDF5F3" shape=box style=filled]
+		nest1_2 [label="Pro Bono Work" color="#A1D7CD" fillcolor="#EDF5F3" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFB74D" penwidth=1.5 style=dashed label="drafts" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N11 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N2 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFB74D" penwidth=1.5 style=solid label="documents" dir=forward]
+	nest1_1 -> nest1_2 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N12 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N3 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#000000" penwidth=1.5 style=dashed label="negotiates" dir=forward]
+	N1 -> M2 [color="#FFB74D" penwidth=1.5 style=solid label="arbitrates" dir=forward]
+	M2 -> N4 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_249.dot b/test/diagrams/scanned_easy/diagrams_249.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b013ed9c313b80dc4867aa37f506419fc1b175ec
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_249.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=TB
+	N0 [label="Cargo Tracking" color="#FFC085" fillcolor="#FFDAB9" shape=inputoutput style=filled]
+	N1 [label="Hazardous Material Transport" color="#FFC085" fillcolor="#FFDAB9" shape=rect style=filled]
+	N2 [label="Cold Chain Management" color="#FFC085" fillcolor="#FFDAB9" shape=preparation style=filled]
+	N3 [label="Global Trade Compliance" color="#FFC085" fillcolor="#FFDAB9" shape=vnode_shape style=filled]
+	N4 [label="Yard Management" color="#DCE775" fillcolor="#FCFCE7" shape=hexagon style=filled]
+	N5 [label="Packing Process" color="#FFC085" fillcolor="#FFDAB9" shape=parallelogram style=filled]
+	N6 [label="Barcode Scanning" color="#DCE775" fillcolor="#FCFCE7" shape=parallelogram style=filled]
+	N7 [label="Warehouse Entry" color="#FFC085" fillcolor="#FFDAB9" shape=predefinedprocess style=filled]
+	N8 [label="Inventory Sync" color="#BCB88A" fillcolor="#F5F5DC" shape=action style=filled]
+	N9 [label="Sorting Center" color="#BCB88A" fillcolor="#F5F5DC" shape=document style=filled]
+	N10 [label="Deconsolidation" color="#FFC085" fillcolor="#FFDAB9" shape=preparation style=filled]
+	N11 [label="Order Picking" color="#FFC085" fillcolor="#FFDAB9" shape=rect style=filled]
+	N12 [label="Last_mile Dispatch" color="#BCB88A" fillcolor="#F5F5DC" shape=action style=filled]
+	N13 [label="Vehicle Loading" color="#BCB88A" fillcolor="#F5F5DC" shape=preparation style=filled]
+	N14 [label="Driver Check_in" color="#BCB88A" fillcolor="#F5F5DC" shape=vnode_shape style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFC085" fillcolor="#FFDAB9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFC085" fillcolor="#FFDAB9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Pickup Request {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Pickup Request"
+		nest0_0 [label="Fleet Maintenance Scheduling" color="#BCB88A" fillcolor="#F5F5DC" shape=multipledocuments style=filled]
+		nest0_1 [label="Delay Notification" color="#BCB88A" fillcolor="#F5F5DC" shape=database style=filled]
+		nest0_2 [label="Route Assignment" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+	}
+	subgraph cluster_Hub Transfer {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Hub Transfer"
+		nest1_0 [label="Pallet Stacking" color="#DCE775" fillcolor="#FCFCE7" shape=rect style=filled]
+		nest1_1 [label="Delivery Confirmation" color="#FFC085" fillcolor="#FFDAB9" shape=vnode_shape style=filled]
+		nest1_2 [label="Return Logistics" color="#DCE775" fillcolor="#FCFCE7" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=solid label="verifies" dir=forward]
+	N1 -> N2 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#BCB88A" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="automates" dir=forward]
+	N6 -> N7 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#BCB88A" penwidth=1.5 style=dashed label="secures" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#BCB88A" penwidth=1.5 style=dashed label="distributes" dir=forward]
+	N8 -> nest0_0 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFC085" penwidth=1.5 style=solid label="insures" dir=forward]
+	nest1_1 -> nest1_2 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest1_0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N12 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S2 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N14 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	S2 -> N6 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#DCE775" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N2 -> M1 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	M1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M2 [color="#000000" penwidth=1.5 style=solid label="stacks" dir=forward]
+	M2 -> N9 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_25.dot b/test/diagrams/scanned_easy/diagrams_25.dot
new file mode 100644
index 0000000000000000000000000000000000000000..817496992d6d2588095627ff019b25165ab5bf20
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_25.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=TB
+	N0 [label="Biosafety Protocol" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N1 [label="Tissue Engineering" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N2 [label="Protein Engineering" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N3 [label="Vaccine Development" color="#B8C0F5" fillcolor="#ECF0FD" shape=rect style=filled]
+	N4 [label="Clinical Trial Design" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N5 [label="Data Management and Analysis" color="#FFA726" fillcolor="#FFF3E0" shape=diamond style=filled]
+	N6 [label="Synthetic Biology Design" color="#B8C0F5" fillcolor="#ECF0FD" shape=vnode_shape style=filled]
+	N7 [label="Drug Discovery" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+	N8 [label="Gene Sequencing" color="#FF8A65" fillcolor="#FBE9E7" shape=preparation style=filled]
+	N9 [label="Computational Biology Modeling" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N10 [label="Genomic Editing" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N11 [label="Quality Control" color="#B8C0F5" fillcolor="#ECF0FD" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFA726" penwidth=1.5 style=solid label="researches" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="purifies" dir=forward]
+	N4 -> N5 [color="#FFA726" penwidth=1.5 style=solid label="educates" dir=forward]
+	N5 -> N6 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#B8C0F5" penwidth=1.5 style=solid label="ferments" dir=forward]
+	N10 -> N11 [color="#FF8A65" penwidth=1.5 style=dashed label="simulates" dir=forward]
+	N5 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N3 [color="#FFA726" penwidth=1.5 style=solid label="produces" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_250.dot b/test/diagrams/scanned_easy/diagrams_250.dot
new file mode 100644
index 0000000000000000000000000000000000000000..001df99e6301335d8b4e99d816f2298056428257
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_250.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=BT
+	N0 [label="Bill Generation" color="#5C6BC0" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	N1 [label="Outage Detection" color="#42A5F5" fillcolor="#F1F8FF" shape=vnode_shape style=filled]
+	N2 [label="SIM Registration" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N3 [label="Fiber Optic Deployment" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N4 [label="Bandwidth Allocation" color="#AF56A6" fillcolor="#DDCEDD" shape=rect style=filled]
+	N5 [label="Call Recording" color="#AF56A6" fillcolor="#DDCEDD" shape=rect style=filled]
+	N6 [label="IoT Device Connection" color="#42A5F5" fillcolor="#F1F8FF" shape=database style=filled]
+	N7 [label="Plan Renewal" color="#5C6BC0" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	N8 [label="Antenna Maintenance" color="#AF56A6" fillcolor="#DDCEDD" shape=multipledocuments style=filled]
+	N9 [label="Billing Inquiry" color="#42A5F5" fillcolor="#F1F8FF" shape=diamond style=filled]
+	N10 [label="Plan Suspension" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N11 [label="Customer Support" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	N12 [label="Mobile Top_up" color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+	N13 [label="MMS Transmission" color="#AF56A6" fillcolor="#DDCEDD" shape=predefinedprocess style=filled]
+	S0 [label="" color="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#42A5F5" fillcolor="#F1F8FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#AF56A6" fillcolor="#DDCEDD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Technical Support Escalation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Technical Support Escalation"
+		nest0_0 [label="VoIP Service" color="#AF56A6" fillcolor="#DDCEDD" shape=multipledocuments style=filled]
+		nest0_1 [label="Troubleshooting Guide" color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+	}
+	subgraph cluster_Number Porting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Number Porting"
+		nest1_0 [label="Service Activation Request" color="#AF56A6" fillcolor="#DDCEDD" shape=parallelogram style=filled]
+		nest1_1 [label="Base Station Installation" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+		nest1_2 [label="Data Usage Logging" color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+		nest1_3 [label="Network Upgrade" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#5C6BC0" penwidth=1.5 style=dashed label="audits" dir=forward]
+	N2 -> nest0_0 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N13 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest1_0 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N4 [color="#AF56A6" penwidth=1.5 style=dashed label="complains" dir=forward]
+	N9 -> S0 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N10 -> M0 [color="#5C6BC0" penwidth=1.5 style=dashed label="alerts" dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N12 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M2 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_251.txt b/test/diagrams/scanned_easy/diagrams_251.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3053fb0a14cd959d7ef9292ee3e6696db01f7a59
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_251.txt
@@ -0,0 +1,26 @@
+<Agricultural Research, connectedTo, Precision Farming>
+<Animal Health Monitoring, connectedTo, Agricultural Research>
+<Aquaculture Farming, connectedTo, Agricultural Research>
+<Aquaculture Farming, connectedTo, Produce Sorting>
+<Aquaculture Farming, connectedTo, Seed Sowing>
+<Crop Monitoring, connectedTo, Disease Detection>
+<Disease Detection, connectedTo, Organic Certification>
+<Equipment Repair, connectedTo, Harvesting>
+<Equipment Repair, connectedTo, Soil Nutrient Management>
+<Greenhouse Control, connectedTo, Precision Farming>
+<Greenhouse Control, connectedTo, Produce Sorting>
+<Greenhouse Control, connectedTo, Soil Nutrient Management>
+<Harvesting, connectedTo, Organic Certification>
+<Harvesting, connectedTo, Soil Nutrient Management>
+<Market Transportation, connectedTo, Weed Removal>
+<Organic Certification, connectedTo, Greenhouse Control>
+<Organic Certification, connectedTo, Market Transportation>
+<Organic Certification, connectedTo, Soil Nutrient Management>
+<Precision Farming, connectedTo, Produce Sorting>
+<Seed Sowing, connectedTo, Agricultural Research>
+<Seedling Transplanting, connectedTo, Crop Monitoring>
+<Soil Nutrient Management, connectedTo, Aquaculture Farming>
+<Soil Nutrient Management, connectedTo, Precision Farming>
+<Soil Nutrient Management, connectedTo, Produce Sorting>
+<Soil Nutrient Management, connectedTo, Seedling Transplanting>
+<Weed Removal, connectedTo, Animal Health Monitoring>
diff --git a/test/diagrams/scanned_easy/diagrams_252.dot b/test/diagrams/scanned_easy/diagrams_252.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cf43e0b09f8879ed2b757d4e5c1a38ab68efeac1
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_252.dot
@@ -0,0 +1,81 @@
+digraph {
+	rankdir=LR
+	N0 [label="Booking Modification" color="#E0E0E0" fillcolor="#EBEBEB" shape=document style=filled]
+	N1 [label="Trip Sharing" color="#FF5722" fillcolor="#FFCCBC" shape=vnode_shape style=filled]
+	N2 [label="Lost and Found Service" color="#4DB6AC" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N3 [label="Rental Car Pickup" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram style=filled]
+	N4 [label="Loyalty Program Enrollment" color="#4DB6AC" fillcolor="#E0F2F1" shape=diamond style=filled]
+	N5 [label="Custom Tour Package Creation" color="#4DB6AC" fillcolor="#E0F2F1" shape=diamond style=filled]
+	N6 [label="Hotel Check_in" color="#4DB6AC" fillcolor="#E0F2F1" shape=document style=filled]
+	N7 [label="Tour Guide Assignment" color="#FF5722" fillcolor="#FFCCBC" shape=diamond style=filled]
+	N8 [label="Duty_Free Shopping" color="#4DB6AC" fillcolor="#E0F2F1" shape=diamond style=filled]
+	N9 [label="Adventure Sports Booking" color="#4DB6AC" fillcolor="#E0F2F1" shape=action style=filled]
+	N10 [label="Group Tour Coordination" color="#4DB6AC" fillcolor="#E0F2F1" shape=predefinedprocess style=filled]
+	N11 [label="Restaurant Reservation" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+	N12 [label="Cruise Ship Boarding" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N13 [label="Flight Booking" color="#4DB6AC" fillcolor="#E0F2F1" shape=database style=filled]
+	N14 [label="Event Reservation" color="#4DB6AC" fillcolor="#E0F2F1" shape=rect style=filled]
+	N15 [label="Museum Visit" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N16 [label="Airport Transfer" color="#FF5722" fillcolor="#FFCCBC" shape=document style=filled]
+	N17 [label="Spa Appointment" color="#4DB6AC" fillcolor="#E0F2F1" shape=database style=filled]
+	N18 [label="Cultural Immersion Program" color="#4DB6AC" fillcolor="#E0F2F1" shape=multipledocuments style=filled]
+	S0 [label="" color="#E0E0E0" fillcolor="#EBEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#4DB6AC" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#4DB6AC" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#4DB6AC" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#4DB6AC" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Itinerary Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Itinerary Planning"
+		nest0_0 [label="Travel Advisory Updates" color="#4DB6AC" fillcolor="#E0F2F1" shape=multipledocuments style=filled]
+		nest0_1 [label="Passport Renewal Assistance" color="#E0E0E0" fillcolor="#EBEBEB" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Photo Capture {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Photo Capture"
+		nest1_0 [label="Visa Application" color="#E0E0E0" fillcolor="#EBEBEB" shape=action style=filled]
+		nest1_1 [label="Local Transport" color="#E0E0E0" fillcolor="#EBEBEB" shape=document style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FF5722" penwidth=1.5 style=solid label="secures" dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid label="applies" dir=forward]
+	N15 -> N16 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N17 -> N18 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N16 [color="#E0E0E0" penwidth=1.5 style=dashed label="assists" dir=forward]
+	nest1_0 -> nest1_1 [color="#4DB6AC" penwidth=1.5 style=dashed label="exchanges" dir=forward]
+	N9 -> nest1_0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid label="sells" dir=forward]
+	S0 -> N7 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S1 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#E0E0E0" penwidth=1.5 style=solid label="accommodates" dir=forward]
+	S1 -> N18 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N16 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	M1 -> N4 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_253.dot b/test/diagrams/scanned_easy/diagrams_253.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ad04d63261982a4439042e9415ee0e70e774190d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_253.dot
@@ -0,0 +1,87 @@
+digraph {
+	rankdir=TB
+	N0 [label="Land Acquisition" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	N1 [label="Property Appraisal" color="#E57373" fillcolor="#FFEBEE" shape=inputoutput style=filled]
+	N2 [label="Eviction Process" color="#E57373" fillcolor="#FFEBEE" shape=document style=filled]
+	N3 [label="Investment Property Analysis" color="#4CAF50" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N4 [label="Building Permit Application" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+	N5 [label="Rental Agreement" color="#E57373" fillcolor="#FFEBEE" shape=inputoutput style=filled]
+	N6 [label="Site Visit Scheduling" color="#A2D0FF" fillcolor="#E8F0FF" shape=vnode_shape style=filled]
+	N7 [label="Zoning Compliance" color="#E57373" fillcolor="#FFEBEE" shape=database style=filled]
+	N8 [label="Lease Renewal" color="#E57373" fillcolor="#FFEBEE" shape=parallelogram style=filled]
+	N9 [label="Renovation Planning" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+	N10 [label="Tax Assessment" color="#A2D0FF" fillcolor="#E8F0FF" shape=vnode_shape style=filled]
+	N11 [label="Tenant Screening" color="#E57373" fillcolor="#FFEBEE" shape=rect style=filled]
+	N12 [label="Loan Pre_Approval" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+	N13 [label="Mortgage Application Assistance" color="#A2D0FF" fillcolor="#E8F0FF" shape=predefinedprocess style=filled]
+	N14 [label="Virtual Tour Creation" color="#E57373" fillcolor="#FFEBEE" shape=rect style=filled]
+	N15 [label="Brokerage License Renewal" color="#E57373" fillcolor="#FFEBEE" shape=parallelogram style=filled]
+	S0 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Agent Assignment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Agent Assignment"
+		nest0_0 [label="Property Listing" color="#E57373" fillcolor="#FFEBEE" shape=parallelogram style=filled]
+		nest0_1 [label="Title Check" color="#A2D0FF" fillcolor="#E8F0FF" shape=preparation style=filled]
+		nest0_2 [label="Property Marketing" color="#4CAF50" fillcolor="#C8E6C9" shape=hexagon style=filled]
+		nest0_3 [label="Maintenance Request" color="#4CAF50" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Property Valuation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Property Valuation"
+		nest1_0 [label="Open House Event" color="#4CAF50" fillcolor="#C8E6C9" shape=action style=filled]
+		nest1_1 [label="Property Tax Payment" color="#A2D0FF" fillcolor="#E8F0FF" shape=inputoutput style=filled]
+		nest1_2 [label="Legal Verification" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="approves" dir=forward]
+	N7 -> N8 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid label="sells" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid label="finalizes" dir=forward]
+	N13 -> nest0_0 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N14 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#E57373" penwidth=1.5 style=dashed label="constructs" dir=forward]
+	nest1_1 -> nest1_2 [color="#4CAF50" penwidth=1.5 style=dashed label="markets" dir=forward]
+	N4 -> nest1_0 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S1 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N7 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N10 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N4 -> M2 [color="#A2D0FF" penwidth=1.5 style=solid label="advises" dir=forward]
+	N5 -> M2 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#4CAF50" penwidth=1.5 style=dashed label="zones" dir=forward]
+	N0 -> M2 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	M2 -> N7 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_254.dot b/test/diagrams/scanned_easy/diagrams_254.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d386b4f73a32971f1033ac36225acd7686b74f0d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_254.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=TB
+	N0 [label="Victim Support Services" color="#5C6BC0" fillcolor="#E8EAF6" shape=rect style=filled]
+	N1 [label="Evacuation Planning" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+	N2 [label="Fire Suppression" color="#A1887F" fillcolor="#EFEBE9" shape=document style=filled]
+	N3 [label="Court Testimony" color="#92C79A" fillcolor="#E8F0EA" shape=predefinedprocess style=filled]
+	N4 [label="SWAT Team Activation" color="#A1887F" fillcolor="#EFEBE9" shape=rectangle style=filled]
+	N5 [label="Disaster Relief Coordination" color="#92C79A" fillcolor="#E8F0EA" shape=database style=filled]
+	N6 [label="Community Outreach" color="#A1887F" fillcolor="#EFEBE9" shape=ellipse style=filled]
+	N7 [label="Bomb Disposal" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N8 [label="Responder Alert" color="#92C79A" fillcolor="#E8F0EA" shape=parallelogram style=filled]
+	N9 [label="Shelter Setup" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N10 [label="Law Enforcement Database Check" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N11 [label="Border Security" color="#92C79A" fillcolor="#E8F0EA" shape=vnode_shape style=filled]
+	N12 [label="Emergency Dispatch" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+	N13 [label="Threat Assessment" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	N14 [label="Forensic Analysis" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	N15 [label="Incident Reporting" color="#92C79A" fillcolor="#E8F0EA" shape=vnode_shape style=filled]
+	N16 [label="Crime Scene Analysis" color="#5C6BC0" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N17 [label="Evidence Collection" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N18 [label="Incident Command System Activation" color="#92C79A" fillcolor="#E8F0EA" shape=parallelogram style=filled]
+	S0 [label="" color="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#92C79A" fillcolor="#E8F0EA" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Inmate Transport {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Inmate Transport"
+		nest0_0 [label="Resource Allocation" color="#A1887F" fillcolor="#EFEBE9" shape=rectangle style=filled]
+		nest0_1 [label="K9 Unit Deployment" color="#5C6BC0" fillcolor="#E8EAF6" shape=diamond style=filled]
+	}
+	subgraph cluster_Rescue Coordination {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Rescue Coordination"
+		nest1_0 [label="Emergency Medical Service" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+		nest1_1 [label="Hazard Detection" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#5C6BC0" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N9 -> N10 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N17 -> N18 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N10 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N10 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N10 -> S0 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N17 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N16 [color="#5C6BC0" penwidth=1.5 style=solid label="equips" dir=forward]
+	S0 -> N15 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N7 -> M0 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N11 -> M0 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N16 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	M1 -> N17 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_255.dot b/test/diagrams/scanned_easy/diagrams_255.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e8ced1b867044894093add41e1305257d99b92eb
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_255.dot
@@ -0,0 +1,59 @@
+digraph {
+	rankdir=RL
+	N0 [label="Visual Effects" color="#E91E63" fillcolor="#F8BBD0" shape=diamond style=filled]
+	N1 [label="Intellectual Property Protection" color="#E91E63" fillcolor="#F8BBD0" shape=database style=filled]
+	N2 [label="Film Distribution" color="#E91E63" fillcolor="#F8BBD0" shape=multipledocuments style=filled]
+	N3 [label="Game Development" color="#BCB88A" fillcolor="#F5F5DC" shape=database style=filled]
+	N4 [label="Trailer Production" color="#BCB88A" fillcolor="#F5F5DC" shape=rect style=filled]
+	N5 [label="Live Performance" color="#82DAFF" fillcolor="#C8EDFF" shape=multipledocuments style=filled]
+	N6 [label="Location Scouting" color="#82DAFF" fillcolor="#C8EDFF" shape=hexagon style=filled]
+	N7 [label="Lighting Setup" color="#82DAFF" fillcolor="#C8EDFF" shape=rectangle style=filled]
+	N8 [label="Premiere Event" color="#BCB88A" fillcolor="#F5F5DC" shape=inputoutput style=filled]
+	S0 [label="" color="#82DAFF" fillcolor="#C8EDFF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Music Composition {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Music Composition"
+		nest0_0 [label="Scene Scheduling" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+		nest0_1 [label="Editing Process" color="#BCB88A" fillcolor="#F5F5DC" shape=preparation style=filled]
+		nest0_2 [label="Red Carpet Event" color="#82DAFF" fillcolor="#C8EDFF" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Animation Production {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Animation Production"
+		nest1_0 [label="Budget Planning" color="#82DAFF" fillcolor="#C8EDFF" shape=rectangle style=filled]
+		nest1_1 [label="Sponsorship Acquisition" color="#E91E63" fillcolor="#F8BBD0" shape=parallelogram style=filled]
+		nest1_2 [label="Costume Design" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#82DAFF" penwidth=1.5 style=dashed label="promotes" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="designs" dir=forward]
+	nest0_0 -> nest0_1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N3 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest1_0 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N2 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S1 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=dashed label="collaborates" dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_255.txt b/test/diagrams/scanned_easy/diagrams_255.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d65a55969582e288c4a0ca6bdcb97883061332c6
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_255.txt
@@ -0,0 +1,25 @@
+<Budget Planning, connectedTo, Sponsorship Acquisition>
+<Costume Design, connectedTo, Film Distribution>
+<Editing Process, connectedTo, Red Carpet Event>
+<Film Distribution, connectedTo, Live Performance>
+<Film Distribution, promotes, Game Development>
+<Game Development, collaborates, Live Performance>
+<Game Development, connectedTo, Lighting Setup>
+<Game Development, connectedTo, Live Performance>
+<Game Development, connectedTo, Location Scouting>
+<Game Development, connectedTo, Premiere Event>
+<Game Development, connectedTo, Trailer Production>
+<Intellectual Property Protection, connectedTo, Film Distribution>
+<Intellectual Property Protection, connectedTo, Live Performance>
+<Lighting Setup, designs, Premiere Event>
+<Live Performance, connectedTo, Location Scouting>
+<Location Scouting, connectedTo, Budget Planning>
+<Location Scouting, connectedTo, Lighting Setup>
+<Location Scouting, connectedTo, Scene Scheduling>
+<Red Carpet Event, connectedTo, Game Development>
+<Scene Scheduling, connectedTo, Editing Process>
+<Sponsorship Acquisition, connectedTo, Costume Design>
+<Trailer Production, connectedTo, Lighting Setup>
+<Trailer Production, connectedTo, Live Performance>
+<Trailer Production, connectedTo, Premiere Event>
+<Visual Effects, connectedTo, Intellectual Property Protection>
diff --git a/test/diagrams/scanned_easy/diagrams_256.dot b/test/diagrams/scanned_easy/diagrams_256.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4d07110485f75b76866644c1b92a0fc87eced1f4
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_256.dot
@@ -0,0 +1,63 @@
+digraph {
+	rankdir=RL
+	N0 [label="Resource Recovery" color="#DCE775" fillcolor="#FCFCE7" shape=vnode_shape style=filled]
+	N1 [label="Environmental Research" color="#DCE775" fillcolor="#FCFCE7" shape=multipledocuments style=filled]
+	N2 [label="Water Sampling" color="#AABEC6" fillcolor="#E0E6E9" shape=database style=filled]
+	N3 [label="Hazardous Material Handling" color="#DCE775" fillcolor="#FCFCE7" shape=vnode_shape style=filled]
+	N4 [label="Renewable Energy Grid Integration" color="#DCE775" fillcolor="#FCFCE7" shape=rectangle style=filled]
+	N5 [label="Coastal Erosion Control" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N6 [label="Groundwater Monitoring" color="#AABEC6" fillcolor="#E0E6E9" shape=preparation style=filled]
+	N7 [label="Sustainable Agriculture Practices" color="#C0CA33" fillcolor="#F9FBE7" shape=action style=filled]
+	N8 [label="Climate Modeling" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N9 [label="Public Awareness Campaign" color="#C0CA33" fillcolor="#F9FBE7" shape=action style=filled]
+	S1 [label="" color="#DCE775" fillcolor="#FCFCE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#AABEC6" fillcolor="#E0E6E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#DCE775" fillcolor="#FCFCE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#DCE775" fillcolor="#FCFCE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Ecological Footprint Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ecological Footprint Analysis"
+		nest0_0 [label="Biodiversity Conservation" color="#C0CA33" fillcolor="#F9FBE7" shape=document style=filled]
+		nest0_1 [label="Air Quality Monitoring" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	}
+	subgraph cluster_Environmental Impact Assessment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Environmental Impact Assessment"
+		nest1_0 [label="Waste Collection" color="#DCE775" fillcolor="#FCFCE7" shape=multipledocuments style=filled]
+		nest1_1 [label="Species Reintroduction" color="#C0CA33" fillcolor="#F9FBE7" shape=diamond style=filled]
+		nest1_2 [label="Policy Advocacy" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	}
+	N0 -> N1 [color="#AABEC6" penwidth=1.5 style=dashed label="advocates" dir=forward]
+	N1 -> N2 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest1_0 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N6 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N2 -> S1 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S2 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	S2 -> N4 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	S2 -> N9 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	S2 -> N5 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	S2 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	M0 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_259.dot b/test/diagrams/scanned_easy/diagrams_259.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ac8733eda8a46562bca51ea3f91b97a9b1e3d7f6
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_259.dot
@@ -0,0 +1,83 @@
+digraph {
+	rankdir=RL
+	N0 [label="Engine Installation" color="#7E57C2" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N1 [label="Vehicle Connectivity" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N2 [label="Safety Inspection" color="#FFE69C" fillcolor="#FFF9D4" shape=preparation style=filled]
+	N3 [label="Vehicle Financing" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	N4 [label="Fluid Level Check" color="#7E57C2" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N5 [label="Parts Distribution" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N6 [label="Research and Development" color="#D3EB9F" fillcolor="#F8FDD3" shape=action style=filled]
+	N7 [label="Supplier Selection" color="#FFE69C" fillcolor="#FFF9D4" shape=rect style=filled]
+	N8 [label="Dealership Sales" color="#7E57C2" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N9 [label="Maintenance Scheduling" color="#FFE69C" fillcolor="#FFF9D4" shape=preparation style=filled]
+	N10 [label="Infotainment System Integration" color="#7E57C2" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N11 [label="Warranty Activation" color="#7E57C2" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N12 [label="Tire Rotation" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N13 [label="Oil Change" color="#FFE69C" fillcolor="#FFF9D4" shape=database style=filled]
+	N14 [label="Global Supply Chain Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=vnode_shape style=filled]
+	N15 [label="Road Testing" color="#FFE69C" fillcolor="#FFF9D4" shape=action style=filled]
+	S0 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#D3EB9F" fillcolor="#F8FDD3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#D3EB9F" fillcolor="#F8FDD3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Component Testing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Component Testing"
+		nest0_0 [label="Fuel Efficiency Check" color="#D3EB9F" fillcolor="#F8FDD3" shape=inputoutput style=filled]
+		nest0_1 [label="Brake System Check" color="#FFE69C" fillcolor="#FFF9D4" shape=rect style=filled]
+		nest0_2 [label="Assembly Line Setup" color="#7E57C2" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+		nest0_3 [label="Autonomous Driving Software Development" color="#7E57C2" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Electric Vehicle Battery Production {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Electric Vehicle Battery Production"
+		nest1_0 [label="Body Shop Repair" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+		nest1_1 [label="Robotics in Production" color="#D3EB9F" fillcolor="#F8FDD3" shape=vnode_shape style=filled]
+		nest1_2 [label="Recall Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#7E57C2" penwidth=1.5 style=solid label="delivers" dir=forward]
+	N2 -> N3 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#7E57C2" penwidth=1.5 style=solid label="inspects" dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N12 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest1_0 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N10 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N5 -> S0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> S1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N12 -> S2 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N15 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	S2 -> N14 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#7E57C2" penwidth=1.5 style=dashed label="designs" dir=forward]
+	M0 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#FFE69C" penwidth=1.5 style=dashed label="markets" dir=forward]
+	M1 -> N6 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_259.txt b/test/diagrams/scanned_easy/diagrams_259.txt
new file mode 100644
index 0000000000000000000000000000000000000000..41e943d8fe7e5487d667145ad85b95f84efc8b92
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_259.txt
@@ -0,0 +1,37 @@
+<Assembly Line Setup, connectedTo, Autonomous Driving Software Development>
+<Autonomous Driving Software Development, connectedTo, Tire Rotation>
+<Body Shop Repair, connectedTo, Robotics in Production>
+<Brake System Check, connectedTo, Assembly Line Setup>
+<Dealership Sales, connectedTo, Maintenance Scheduling>
+<Dealership Sales, connectedTo, Oil Change>
+<Dealership Sales, connectedTo, Road Testing>
+<Engine Installation, connectedTo, Vehicle Connectivity>
+<Engine Installation, designs, Tire Rotation>
+<Engine Installation, markets, Research and Development>
+<Fluid Level Check, connectedTo, Fuel Efficiency Check>
+<Fluid Level Check, connectedTo, Parts Distribution>
+<Fluid Level Check, connectedTo, Research and Development>
+<Fuel Efficiency Check, connectedTo, Brake System Check>
+<Global Supply Chain Management, connectedTo, Road Testing>
+<Infotainment System Integration, connectedTo, Warranty Activation>
+<Maintenance Scheduling, connectedTo, Infotainment System Integration>
+<Oil Change, inspects, Global Supply Chain Management>
+<Parts Distribution, connectedTo, Dealership Sales>
+<Parts Distribution, connectedTo, Infotainment System Integration>
+<Parts Distribution, connectedTo, Maintenance Scheduling>
+<Parts Distribution, connectedTo, Research and Development>
+<Recall Management, connectedTo, Infotainment System Integration>
+<Research and Development, connectedTo, Body Shop Repair>
+<Research and Development, connectedTo, Supplier Selection>
+<Research and Development, connectedTo, Tire Rotation>
+<Robotics in Production, connectedTo, Recall Management>
+<Safety Inspection, connectedTo, Research and Development>
+<Safety Inspection, connectedTo, Vehicle Financing>
+<Supplier Selection, connectedTo, Dealership Sales>
+<Tire Rotation, connectedTo, Global Supply Chain Management>
+<Tire Rotation, connectedTo, Oil Change>
+<Tire Rotation, connectedTo, Road Testing>
+<Vehicle Connectivity, delivers, Safety Inspection>
+<Vehicle Financing, connectedTo, Fluid Level Check>
+<Vehicle Financing, connectedTo, Tire Rotation>
+<Warranty Activation, connectedTo, Tire Rotation>
diff --git a/test/diagrams/scanned_easy/diagrams_26.dot b/test/diagrams/scanned_easy/diagrams_26.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8b34533d4b3638c88ea1803f29232f225f92d8df
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_26.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=TB
+	N0 [label="Solid Dosage Formulation" color="#CFCFCF" fillcolor="#F6F6F6" shape=preparation style=filled]
+	N1 [label="Pharmacovigilance" color="#CFCFCF" fillcolor="#F6F6F6" shape=multipledocuments style=filled]
+	N2 [label="Supply Chain Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=rectangle style=filled]
+	N3 [label="Global Regulatory Affairs" color="#CFCFCF" fillcolor="#F6F6F6" shape=rectangle style=filled]
+	N4 [label="Clinical Trial Phases" color="#CFCFCF" fillcolor="#F6F6F6" shape=rectangle style=filled]
+	N5 [label="Drug Stability Testing" color="#CFCFCF" fillcolor="#F6F6F6" shape=vnode_shape style=filled]
+	N6 [label="Distribution" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+	N7 [label="Formulation Development" color="#4DD0E1" fillcolor="#C9F0F0" shape=inputoutput style=filled]
+	N8 [label="Injectable Drug Manufacturing" color="#CFCFCF" fillcolor="#F6F6F6" shape=box style=filled]
+	N9 [label="Medical Writing" color="#CFCFCF" fillcolor="#F6F6F6" shape=predefinedprocess style=filled]
+	N0 -> N1 [color="#CFCFCF" penwidth=1.5 style=solid label="markets" dir=forward]
+	N1 -> N2 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#4DD0E1" penwidth=1.5 style=solid label="labels" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="transports" dir=forward]
+	N6 -> N7 [color="#4DD0E1" penwidth=1.5 style=solid label="monitors" dir=forward]
+	N7 -> N8 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFE69C" penwidth=1.5 style=solid label="researches" dir=forward]
+	N5 -> N2 [color="#4DD0E1" penwidth=1.5 style=dashed label="audits" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_260.dot b/test/diagrams/scanned_easy/diagrams_260.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f4e3510dbc6c45453b2b77cbb628ac49d1b00c2e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_260.dot
@@ -0,0 +1,71 @@
+digraph {
+	rankdir=TB
+	N0 [label="Rocket Stage Separation" color="#607D8B" fillcolor="#CFD8DC" shape=database style=filled]
+	N1 [label="Payload Integration" color="#4CAF50" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N2 [label="Countdown Sequence" color="#607D8B" fillcolor="#CFD8DC" shape=rect style=filled]
+	N3 [label="Propulsion Testing" color="#4CAF50" fillcolor="#C8E6C9" shape=database style=filled]
+	N4 [label="Mission Debriefing" color="#607D8B" fillcolor="#CFD8DC" shape=parallelogram style=filled]
+	N5 [label="International Space Station Resupply" color="#607D8B" fillcolor="#CFD8DC" shape=vnode_shape style=filled]
+	N6 [label="Avionics Installation" color="#CD8FF2" fillcolor="#ECCFF5" shape=predefinedprocess style=filled]
+	N7 [label="System Reboot" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	N8 [label="Flight Simulation" color="#CD8FF2" fillcolor="#ECCFF5" shape=rectangle style=filled]
+	N9 [label="Telemetry Setup" color="#4CAF50" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N10 [label="Drone System Development" color="#CD8FF2" fillcolor="#ECCFF5" shape=preparation style=filled]
+	N11 [label="Launch Window Calculation" color="#4CAF50" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N12 [label="Structural Analysis" color="#4CAF50" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N13 [label="Orbit Adjustment" color="#607D8B" fillcolor="#CFD8DC" shape=predefinedprocess style=filled]
+	S0 [label="" color="#607D8B" fillcolor="#CFD8DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#CD8FF2" fillcolor="#ECCFF5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#607D8B" fillcolor="#CFD8DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#CD8FF2" fillcolor="#ECCFF5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_New Material Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="New Material Development"
+		nest0_0 [label="Satellite Data Processing" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+		nest0_1 [label="Rocket Assembly" color="#CD8FF2" fillcolor="#ECCFF5" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Thermal Shield Testing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Thermal Shield Testing"
+		nest1_0 [label="Ground Station Coordination" color="#607D8B" fillcolor="#CFD8DC" shape=document style=filled]
+		nest1_1 [label="Astronaut Training" color="#CD8FF2" fillcolor="#ECCFF5" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N13 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N12 -> nest1_0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N8 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#CD8FF2" penwidth=1.5 style=solid label="recovers" dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S1 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N10 -> S2 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	S2 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#607D8B" penwidth=1.5 style=solid label="licenses" dir=forward]
+	M1 -> N8 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_261.txt b/test/diagrams/scanned_easy/diagrams_261.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ccdd310114d1c0ce9a844bbcee8b6ba6a1ee310c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_261.txt
@@ -0,0 +1,30 @@
+<Agent Training, connectedTo, Broker Management>
+<Agent Training, connectedTo, Coverage Review>
+<Agent Training, connectedTo, Legal Review of Claims>
+<Annuity Sales, analyzes, Benefit Payout>
+<Benefit Payout, connectedTo, Agent Training>
+<Business Interruption Coverage, connectedTo, Premium Calculation>
+<Claim Adjustment, connectedTo, Policy Issuance>
+<Compliance Reporting, connectedTo, Customer Communication>
+<Coverage Review, connectedTo, Cyber Insurance Policy>
+<Coverage Review, connectedTo, Legal Review of Claims>
+<Customer Communication, connectedTo, Agent Training>
+<Cyber Insurance Policy, connectedTo, Annuity Sales>
+<Data Security, connectedTo, Compliance Reporting>
+<Data Security, connectedTo, Life Insurance Underwriting>
+<Data Security, connectedTo, Payment Processing>
+<Legal Review of Claims, connectedTo, Broker Management>
+<Life Insurance Underwriting, connectedTo, Broker Management>
+<Life Insurance Underwriting, connectedTo, Business Interruption Coverage>
+<Life Insurance Underwriting, connectedTo, Compliance Reporting>
+<Life Insurance Underwriting, connectedTo, Premium Calculation>
+<Loss Prevention, connectedTo, Compliance Reporting>
+<Market Research, connectedTo, Compliance Reporting>
+<Market Research, connectedTo, Loss Prevention>
+<Payment Processing, connectedTo, Compliance Reporting>
+<Payment Processing, connectedTo, Life Insurance Underwriting>
+<Policy Issuance, rejects, Legal Review of Claims>
+<Premium Calculation, connectedTo, Claim Adjustment>
+<Premium Calculation, connectedTo, Market Research>
+<Third_Party Administrator Liaison, connectedTo, Data Security>
+<Third_Party Administrator Liaison, connectedTo, Life Insurance Underwriting>
diff --git a/test/diagrams/scanned_easy/diagrams_262.dot b/test/diagrams/scanned_easy/diagrams_262.dot
new file mode 100644
index 0000000000000000000000000000000000000000..185030702409ad1bf57da0e1ed7fe73970e64d82
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_262.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=RL
+	N0 [label="Firewall Configuration" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+	N1 [label="Mobile Security" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N2 [label="Physical Security Integration" color="#66BB6A" fillcolor="#E8F5E9" shape=multipledocuments style=filled]
+	N3 [label="Data Encryption" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N4 [label="Digital Forensics" color="#81C784" fillcolor="#F1F8E9" shape=database style=filled]
+	N5 [label="DevSecOps Integration" color="#FFD54F" fillcolor="#FFF8E1" shape=diamond style=filled]
+	N6 [label="Antivirus Management" color="#66BB6A" fillcolor="#E8F5E9" shape=predefinedprocess style=filled]
+	N7 [label="Security Policy Development" color="#66BB6A" fillcolor="#E8F5E9" shape=vnode_shape style=filled]
+	N8 [label="Penetration Testing" color="#81C784" fillcolor="#F1F8E9" shape=inputoutput style=filled]
+	N9 [label="Supply Chain Security" color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+	N10 [label="Security Operations Center Monitoring" color="#81C784" fillcolor="#F1F8E9" shape=preparation style=filled]
+	N11 [label="Intrusion Prevention" color="#81C784" fillcolor="#F1F8E9" shape=preparation style=filled]
+	S0 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#81C784" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#81C784" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Security Awareness Training {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Security Awareness Training"
+		nest0_0 [label="Identity Management" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+		nest0_1 [label="Threat Detection" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+		nest0_2 [label="Risk Management Framework" color="#FFD54F" fillcolor="#FFF8E1" shape=preparation style=filled]
+		nest0_3 [label="Network Security" color="#FFD54F" fillcolor="#FFF8E1" shape=preparation style=filled]
+	}
+	subgraph cluster_Phishing Simulation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Phishing Simulation"
+		nest1_0 [label="Data Loss Prevention" color="#FFD54F" fillcolor="#FFF8E1" shape=action style=filled]
+		nest1_1 [label="Security Audit" color="#66BB6A" fillcolor="#E8F5E9" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N10 -> nest0_0 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N7 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#81C784" penwidth=1.5 style=solid label="reports" dir=forward]
+	N6 -> nest1_0 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N9 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S0 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N6 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N3 -> M2 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N5 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_263.dot b/test/diagrams/scanned_easy/diagrams_263.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2d67cd4f9dce0cfe7a9231989ac798fb98634a6d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_263.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=LR
+	N0 [label="Motion Detection" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+	N1 [label="Child Monitoring" color="#CB9BE1" fillcolor="#F2E6F5" shape=hexagon style=filled]
+	N2 [label="Energy Monitoring" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	N3 [label="Window Sensor Monitoring" color="#3F51B5" fillcolor="#C5CAE9" shape=rectangle style=filled]
+	N4 [label="Energy Consumption Optimization" color="#3F51B5" fillcolor="#C5CAE9" shape=multipledocuments style=filled]
+	N5 [label="Personalized Comfort Settings" color="#3F51B5" fillcolor="#C5CAE9" shape=preparation style=filled]
+	N6 [label="App Control" color="#A188DB" fillcolor="#DED7F0" shape=inputoutput style=filled]
+	N7 [label="Pet Feeder Automation" color="#3F51B5" fillcolor="#C5CAE9" shape=document style=filled]
+	N8 [label="Smart Plug Management" color="#A188DB" fillcolor="#DED7F0" shape=predefinedprocess style=filled]
+	N9 [label="Guest Access Management" color="#A188DB" fillcolor="#DED7F0" shape=vnode_shape style=filled]
+	N10 [label="Intercom System" color="#3F51B5" fillcolor="#C5CAE9" shape=database style=filled]
+	N11 [label="Curtain Automation" color="#A188DB" fillcolor="#DED7F0" shape=rect style=filled]
+	S0 [label="" color="#A188DB" fillcolor="#DED7F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Smart Appliance Control {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Smart Appliance Control"
+		nest0_0 [label="Scene Creation" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+		nest0_1 [label="Air Quality Monitoring" color="#A188DB" fillcolor="#DED7F0" shape=action style=filled]
+	}
+	subgraph cluster_Routine Scheduling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Routine Scheduling"
+		nest1_0 [label="Firmware Update" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+		nest1_1 [label="Door Lock Management" color="#3F51B5" fillcolor="#C5CAE9" shape=database style=filled]
+		nest1_2 [label="Garage Door Control" color="#3F51B5" fillcolor="#C5CAE9" shape=predefinedprocess style=filled]
+		nest1_3 [label="Video Surveillance" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#CB9BE1" penwidth=1.5 style=dashed label="updates" dir=forward]
+	N8 -> N9 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest0_0 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N4 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest1_0 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N3 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N7 -> S0 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S1 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed label="closes" dir=forward]
+	N7 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#A188DB" penwidth=1.5 style=dashed label="streams" dir=forward]
+	N4 -> M0 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#CB9BE1" penwidth=1.5 style=solid label="conserves" dir=forward]
+	N4 -> M1 [color="#CB9BE1" penwidth=1.5 style=solid label="integrates" dir=forward]
+	M1 -> N6 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_263.txt b/test/diagrams/scanned_easy/diagrams_263.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f4e875b9fbfdf55b4b408958a02f79031e478ca1
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_263.txt
@@ -0,0 +1,29 @@
+<Air Quality Monitoring, connectedTo, Energy Consumption Optimization>
+<App Control, closes, Intercom System>
+<App Control, connectedTo, Guest Access Management>
+<App Control, connectedTo, Pet Feeder Automation>
+<Child Monitoring, connectedTo, Energy Monitoring>
+<Child Monitoring, conserves, App Control>
+<Door Lock Management, connectedTo, Garage Door Control>
+<Energy Consumption Optimization, connectedTo, Personalized Comfort Settings>
+<Energy Consumption Optimization, connectedTo, Pet Feeder Automation>
+<Energy Consumption Optimization, integrates, App Control>
+<Energy Monitoring, connectedTo, Window Sensor Monitoring>
+<Firmware Update, connectedTo, Door Lock Management>
+<Garage Door Control, connectedTo, Video Surveillance>
+<Guest Access Management, connectedTo, Intercom System>
+<Intercom System, connectedTo, Curtain Automation>
+<Motion Detection, connectedTo, Child Monitoring>
+<Personalized Comfort Settings, connectedTo, App Control>
+<Personalized Comfort Settings, connectedTo, Firmware Update>
+<Personalized Comfort Settings, connectedTo, Pet Feeder Automation>
+<Pet Feeder Automation, connectedTo, Curtain Automation>
+<Pet Feeder Automation, connectedTo, Guest Access Management>
+<Pet Feeder Automation, connectedTo, Intercom System>
+<Pet Feeder Automation, updates, Smart Plug Management>
+<Scene Creation, connectedTo, Air Quality Monitoring>
+<Smart Plug Management, connectedTo, Guest Access Management>
+<Smart Plug Management, connectedTo, Scene Creation>
+<Video Surveillance, connectedTo, Window Sensor Monitoring>
+<Window Sensor Monitoring, connectedTo, Energy Consumption Optimization>
+<Window Sensor Monitoring, streams, Pet Feeder Automation>
diff --git a/test/diagrams/scanned_easy/diagrams_264.dot b/test/diagrams/scanned_easy/diagrams_264.dot
new file mode 100644
index 0000000000000000000000000000000000000000..eff1b1c832045ab58e0fff3114ad43656ce64338
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_264.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=BT
+	N0 [label="Water Management System" color="#9C27B0" fillcolor="#E1BEE7" shape=action style=filled]
+	N1 [label="Green Space Management" color="#9C27B0" fillcolor="#E1BEE7" shape=multipledocuments style=filled]
+	N2 [label="Public Wi_Fi Deployment" color="#BDBDBD" fillcolor="#F5F5F5" shape=rectangle style=filled]
+	N3 [label="E_governance Services" color="#4DD0E1" fillcolor="#C9F0F0" shape=vnode_shape style=filled]
+	N4 [label="Environmental Sensor Network" color="#4DD0E1" fillcolor="#C9F0F0" shape=predefinedprocess style=filled]
+	N5 [label="Public Transport Tracking" color="#9C27B0" fillcolor="#E1BEE7" shape=action style=filled]
+	N6 [label="Energy Grid Management" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+	N7 [label="Smart Building Integration" color="#9C27B0" fillcolor="#E1BEE7" shape=preparation style=filled]
+	N8 [label="Urban Mobility Solutions" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+	N9 [label="Waste Management Optimization" color="#9C27B0" fillcolor="#E1BEE7" shape=predefinedprocess style=filled]
+	N10 [label="Sustainable Resource Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=inputoutput style=filled]
+	N11 [label="Digital Twins of City" color="#9C27B0" fillcolor="#E1BEE7" shape=multipledocuments style=filled]
+	N12 [label="Smart Traffic Lights" color="#9C27B0" fillcolor="#E1BEE7" shape=rect style=filled]
+	N13 [label="Public Safety Monitoring" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+	N14 [label="Traffic Flow Optimization" color="#9C27B0" fillcolor="#E1BEE7" shape=hexagon style=filled]
+	S0 [label="" color="#BDBDBD" fillcolor="#F5F5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#9C27B0" fillcolor="#E1BEE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#4DD0E1" fillcolor="#C9F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#BDBDBD" fillcolor="#F5F5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#9C27B0" fillcolor="#E1BEE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Waste Recycling Program {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Waste Recycling Program"
+		nest0_0 [label="Noise Pollution Monitoring" color="#BDBDBD" fillcolor="#F5F5F5" shape=rect style=filled]
+		nest0_1 [label="Crowd Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=multipledocuments style=filled]
+	}
+	subgraph cluster_Smart Lighting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Smart Lighting"
+		nest1_0 [label="Smart Parking" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+		nest1_1 [label="Smart Water Meters" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="integrates" dir=forward]
+	N1 -> N2 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#4DD0E1" penwidth=1.5 style=solid label="tracks" dir=forward]
+	N12 -> nest0_0 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N3 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N13 [color="#9C27B0" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N1 -> S0 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N2 -> S1 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S2 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	S2 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N13 [color="#4DD0E1" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N4 -> M0 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N4 -> M2 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M2 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M2 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N10 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_265.dot b/test/diagrams/scanned_easy/diagrams_265.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bf85be8a7bac03c66195ab600fcab59b85a1ee3f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_265.dot
@@ -0,0 +1,76 @@
+digraph {
+	rankdir=RL
+	N0 [label="Gene Therapy Delivery" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N1 [label="Microbial Fermentation" color="#FFE69C" fillcolor="#FFF9D4" shape=action style=filled]
+	N2 [label="Structural Biology" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N3 [label="Regulatory Submission" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N4 [label="Biomarker Discovery" color="#FFE69C" fillcolor="#FFF9D4" shape=predefinedprocess style=filled]
+	N5 [label="Cell Culture" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N6 [label="Biosafety Protocol" color="#03A9F4" fillcolor="#B3E5FC" shape=rectangle style=filled]
+	N7 [label="Drug Discovery" color="#03A9F4" fillcolor="#B3E5FC" shape=rectangle style=filled]
+	N8 [label="Intellectual Property Protection" color="#FFE69C" fillcolor="#FFF9D4" shape=rect style=filled]
+	N9 [label="Clinical Data Interpretation" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N10 [label="Target Identification" color="#03A9F4" fillcolor="#B3E5FC" shape=preparation style=filled]
+	N11 [label="Drug Repurposing" color="#FFE69C" fillcolor="#FFF9D4" shape=parallelogram style=filled]
+	N12 [label="Nanobiotechnology Application" color="#03A9F4" fillcolor="#B3E5FC" shape=action style=filled]
+	N13 [label="Assay Development" color="#03A9F4" fillcolor="#B3E5FC" shape=predefinedprocess style=filled]
+	N14 [label="Quality Control" color="#FF9800" fillcolor="#FFE0B2" shape=preparation style=filled]
+	N15 [label="Clinical Trial Design" color="#FFE69C" fillcolor="#FFF9D4" shape=inputoutput style=filled]
+	N16 [label="Bioprocess Optimization" color="#FFE69C" fillcolor="#FFF9D4" shape=diamond style=filled]
+	N17 [label="Diagnostic Test Development" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	S0 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Biomanufacturing Scale_up {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Biomanufacturing Scale_up"
+		nest0_0 [label="Vaccine Development" color="#03A9F4" fillcolor="#B3E5FC" shape=rectangle style=filled]
+		nest0_1 [label="Bioinformatics Analysis" color="#03A9F4" fillcolor="#B3E5FC" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Preclinical Testing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Preclinical Testing"
+		nest1_0 [label="CRISPR Technology Application" color="#FF9800" fillcolor="#FFE0B2" shape=inputoutput style=filled]
+		nest1_1 [label="Stem Cell Research" color="#FF9800" fillcolor="#FFE0B2" shape=parallelogram style=filled]
+		nest1_2 [label="Data Management and Analysis" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+		nest1_3 [label="Ethical Review Board Approval" color="#03A9F4" fillcolor="#B3E5FC" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	N16 -> nest0_0 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N11 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N11 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N10 -> M1 [color="#000000" penwidth=1.5 style=solid label="applies" dir=forward]
+	M1 -> N12 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_265.txt b/test/diagrams/scanned_easy/diagrams_265.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e997c066f5218ec8c1b8fee40ba1943647b17eab
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_265.txt
@@ -0,0 +1,33 @@
+<Assay Development, connectedTo, CRISPR Technology Application>
+<Assay Development, connectedTo, Quality Control>
+<Bioinformatics Analysis, connectedTo, Drug Repurposing>
+<Biomarker Discovery, connectedTo, Biosafety Protocol>
+<Biomarker Discovery, connectedTo, Cell Culture>
+<Bioprocess Optimization, connectedTo, Diagnostic Test Development>
+<Bioprocess Optimization, connectedTo, Vaccine Development>
+<Biosafety Protocol, connectedTo, Drug Discovery>
+<CRISPR Technology Application, connectedTo, Stem Cell Research>
+<Cell Culture, connectedTo, Biosafety Protocol>
+<Clinical Data Interpretation, connectedTo, Target Identification>
+<Clinical Trial Design, connectedTo, Bioprocess Optimization>
+<Data Management and Analysis, connectedTo, Ethical Review Board Approval>
+<Drug Discovery, connectedTo, Intellectual Property Protection>
+<Drug Repurposing, connectedTo, Nanobiotechnology Application>
+<Ethical Review Board Approval, connectedTo, Drug Repurposing>
+<Gene Therapy Delivery, connectedTo, Microbial Fermentation>
+<Gene Therapy Delivery, connectedTo, Nanobiotechnology Application>
+<Intellectual Property Protection, connectedTo, Clinical Data Interpretation>
+<Microbial Fermentation, connectedTo, Biosafety Protocol>
+<Microbial Fermentation, connectedTo, Clinical Trial Design>
+<Microbial Fermentation, connectedTo, Nanobiotechnology Application>
+<Microbial Fermentation, connectedTo, Quality Control>
+<Microbial Fermentation, connectedTo, Structural Biology>
+<Nanobiotechnology Application, connectedTo, Assay Development>
+<Quality Control, connectedTo, Clinical Trial Design>
+<Regulatory Submission, connectedTo, Biomarker Discovery>
+<Stem Cell Research, connectedTo, Data Management and Analysis>
+<Structural Biology, connectedTo, Biosafety Protocol>
+<Structural Biology, connectedTo, Regulatory Submission>
+<Target Identification, applies, Nanobiotechnology Application>
+<Target Identification, connectedTo, Drug Repurposing>
+<Vaccine Development, connectedTo, Bioinformatics Analysis>
diff --git a/test/diagrams/scanned_easy/diagrams_266.txt b/test/diagrams/scanned_easy/diagrams_266.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ddbd39cd198d98e30c73746f82e9876c83b0e6da
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_266.txt
@@ -0,0 +1,35 @@
+<Cleanroom Operations, certifies, Patent Application>
+<Cleanroom Operations, connectedTo, Good Manufacturing Practices>
+<Cleanroom Operations, connectedTo, Packaging>
+<Clinical Data Management, connectedTo, Drug Device Combination>
+<Clinical Data Management, connectedTo, Manufacturing Scale_up>
+<Clinical Data Management, connectedTo, Regulatory Approval>
+<Cold Chain Logistics, funds, Medical Writing>
+<Compound Synthesis, connectedTo, Cleanroom Operations>
+<Compound Synthesis, connectedTo, Intellectual Property Litigation>
+<Compound Synthesis, connectedTo, Packaging>
+<Compound Synthesis, connectedTo, Regulatory Approval>
+<Counterfeit Drug Detection, connectedTo, Clinical Data Management>
+<Counterfeit Drug Detection, connectedTo, Drug Device Combination>
+<Drug Device Combination, connectedTo, Cold Chain Logistics>
+<Drug Device Combination, connectedTo, Quality Control>
+<Drug Repurposing, connectedTo, Drug Device Combination>
+<Drug Repurposing, connectedTo, Regulatory Approval>
+<Drug Research, connectedTo, Health Economics Outcomes Research>
+<Drug Stability Testing, connectedTo, Sterile Product Filling>
+<Good Manufacturing Practices, connectedTo, Packaging>
+<Health Economics Outcomes Research, partners, Post_Approval Commitment Tracking>
+<Intellectual Property Litigation, connectedTo, Regulatory Approval>
+<Manufacturing Scale_up, connectedTo, Drug Device Combination>
+<Manufacturing Scale_up, connectedTo, Drug Repurposing>
+<Medical Writing, connectedTo, Sterile Product Filling>
+<Packaging, connectedTo, Drug Research>
+<Packaging, connectedTo, Patent Application>
+<Post_Approval Commitment Tracking, connectedTo, Good Manufacturing Practices>
+<Quality Control, connectedTo, Compound Synthesis>
+<Quality Control, connectedTo, Regulatory Approval>
+<Regulatory Approval, connectedTo, Drug Stability Testing>
+<Sterile Product Filling, connectedTo, Cleanroom Operations>
+<Sterile Product Filling, connectedTo, Good Manufacturing Practices>
+<Sterile Product Filling, connectedTo, Packaging>
+<Sterile Product Filling, connectedTo, Patent Application>
diff --git a/test/diagrams/scanned_easy/diagrams_267.txt b/test/diagrams/scanned_easy/diagrams_267.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0c1da190ceae8bae743e5e94f42ee0c76990c1f0
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_267.txt
@@ -0,0 +1,29 @@
+<Actuator Control, connectedTo, Path Planning>
+<Artificial Intelligence Integration, assembles, Fault Detection and Diagnosis>
+<Artificial Intelligence Integration, connectedTo, Medical Robotics>
+<Artificial Intelligence Integration, connectedTo, Performance Testing>
+<Artificial Intelligence Integration, operates, Fault Detection and Diagnosis>
+<Calibration, connectedTo, Fault Detection and Diagnosis>
+<Calibration, connectedTo, Robot Design>
+<Collaborative Robotics, connectedTo, Calibration>
+<Collaborative Robotics, connectedTo, Fault Detection and Diagnosis>
+<Exoskeleton Development, connectedTo, Artificial Intelligence Integration>
+<Exploration Robotics, connectedTo, Fault Detection and Diagnosis>
+<Exploration Robotics, connectedTo, Wireless Communication>
+<Human_Robot Interaction, connectedTo, Artificial Intelligence Integration>
+<Medical Robotics, connectedTo, Fault Detection and Diagnosis>
+<Path Planning, models, Exoskeleton Development>
+<Performance Testing, connectedTo, Medical Robotics>
+<Performance Testing, connectedTo, Service Robotics>
+<Robot Design, connectedTo, Fault Detection and Diagnosis>
+<Robot Design, connectedTo, Software Development>
+<Robotics Simulation, connectedTo, Artificial Intelligence Integration>
+<Robotics Simulation, connectedTo, Collaborative Robotics>
+<Robotics Simulation, connectedTo, Robot Design>
+<Sensor Integration, connectedTo, Human_Robot Interaction>
+<Service Robotics, connectedTo, Sensor Integration>
+<Software Development, connectedTo, Actuator Control>
+<Software Development, connectedTo, Fault Detection and Diagnosis>
+<Software Development, programs, Artificial Intelligence Integration>
+<Wireless Communication, connectedTo, Fault Detection and Diagnosis>
+<Wireless Communication, connectedTo, Robotics Simulation>
diff --git a/test/diagrams/scanned_easy/diagrams_268.dot b/test/diagrams/scanned_easy/diagrams_268.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bf899ebb5c13e286aad85eb768e6e60537789d56
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_268.dot
@@ -0,0 +1,90 @@
+digraph {
+	rankdir=LR
+	N0 [label="Permit Application" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	N1 [label="Bridge Building" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N2 [label="Landscape Design" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	N3 [label="Change Order Management" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N4 [label="Waste Management" color="#FFDA4E" fillcolor="#FFE88D" shape=document style=filled]
+	N5 [label="Tunneling" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	N6 [label="Utility Connection" color="#FFDA4E" fillcolor="#FFE88D" shape=rectangle style=filled]
+	N7 [label="Budget Tracking" color="#FFC107" fillcolor="#FFECB3" shape=database style=filled]
+	N8 [label="Safety Inspection" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	N9 [label="Material Procurement" color="#9575CD" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+	N10 [label="Subcontractor Management" color="#9575CD" fillcolor="#EDE7F6" shape=diamond style=filled]
+	N11 [label="Structural Framing" color="#FFDA4E" fillcolor="#FFE88D" shape=database style=filled]
+	N12 [label="Project Scheduling" color="#9575CD" fillcolor="#EDE7F6" shape=predefinedprocess style=filled]
+	N13 [label="BIM Modeling" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N14 [label="Interior Finishing" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	N15 [label="Post_Construction Handover" color="#FFDA4E" fillcolor="#FFE88D" shape=preparation style=filled]
+	S0 [label="" color="#9575CD" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#9575CD" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#9575CD" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FFC107" fillcolor="#FFECB3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_HVAC Installation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="HVAC Installation"
+		nest0_0 [label="Site Logistics" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+		nest0_1 [label="Demolition" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+		nest0_2 [label="Electrical Wiring" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	}
+	subgraph cluster_Site Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Site Planning"
+		nest1_0 [label="Robotics in Construction" color="#9575CD" fillcolor="#EDE7F6" shape=rectangle style=filled]
+		nest1_1 [label="Site Decontamination" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+		nest1_2 [label="Facade Installation" color="#FFDA4E" fillcolor="#FFE88D" shape=rect style=filled]
+		nest1_3 [label="Sustainable Building Design" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N14 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> nest1_0 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N8 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S1 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N9 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N14 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N15 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N10 -> M0 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N12 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	M1 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N6 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_268.txt b/test/diagrams/scanned_easy/diagrams_268.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b504c8219c50ecfbdfd482bedbb50f23f7b18053
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_268.txt
@@ -0,0 +1,42 @@
+<BIM Modeling, connectedTo, Interior Finishing>
+<Bridge Building, connectedTo, Landscape Design>
+<Bridge Building, connectedTo, Post_Construction Handover>
+<Bridge Building, connectedTo, Structural Framing>
+<Bridge Building, connectedTo, Subcontractor Management>
+<Budget Tracking, connectedTo, Safety Inspection>
+<Change Order Management, connectedTo, Project Scheduling>
+<Change Order Management, connectedTo, Subcontractor Management>
+<Change Order Management, connectedTo, Waste Management>
+<Demolition, connectedTo, Electrical Wiring>
+<Electrical Wiring, connectedTo, Interior Finishing>
+<Facade Installation, connectedTo, Sustainable Building Design>
+<Interior Finishing, connectedTo, Post_Construction Handover>
+<Landscape Design, connectedTo, Change Order Management>
+<Landscape Design, connectedTo, Utility Connection>
+<Material Procurement, connectedTo, BIM Modeling>
+<Material Procurement, connectedTo, Interior Finishing>
+<Material Procurement, connectedTo, Post_Construction Handover>
+<Material Procurement, connectedTo, Subcontractor Management>
+<Permit Application, connectedTo, Bridge Building>
+<Project Scheduling, connectedTo, BIM Modeling>
+<Robotics in Construction, connectedTo, Site Decontamination>
+<Safety Inspection, connectedTo, BIM Modeling>
+<Safety Inspection, connectedTo, Material Procurement>
+<Safety Inspection, connectedTo, Post_Construction Handover>
+<Safety Inspection, connectedTo, Project Scheduling>
+<Safety Inspection, connectedTo, Structural Framing>
+<Site Decontamination, connectedTo, Facade Installation>
+<Site Logistics, connectedTo, Demolition>
+<Structural Framing, connectedTo, Project Scheduling>
+<Structural Framing, connectedTo, Robotics in Construction>
+<Subcontractor Management, connectedTo, Project Scheduling>
+<Subcontractor Management, connectedTo, Structural Framing>
+<Sustainable Building Design, connectedTo, Safety Inspection>
+<Tunneling, connectedTo, Project Scheduling>
+<Tunneling, connectedTo, Subcontractor Management>
+<Tunneling, connectedTo, Utility Connection>
+<Utility Connection, connectedTo, Budget Tracking>
+<Utility Connection, connectedTo, Site Logistics>
+<Waste Management, connectedTo, Subcontractor Management>
+<Waste Management, connectedTo, Tunneling>
+<Waste Management, connectedTo, Utility Connection>
diff --git a/test/diagrams/scanned_easy/diagrams_270.dot b/test/diagrams/scanned_easy/diagrams_270.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a4e3ef5633662b374fac9a06d6f1188ba09d5b3a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_270.dot
@@ -0,0 +1,69 @@
+digraph {
+	rankdir=TB
+	N0 [label="Restaurant Management" color="#4CAF50" fillcolor="#C8E6C9" shape=preparation style=filled]
+	N1 [label="Food Safety Inspection" color="#673AB7" fillcolor="#D1C4E9" shape=action style=filled]
+	N2 [label="Supply Chain Traceability" color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N3 [label="Nutrition Analysis" color="#CD8FF2" fillcolor="#ECCFF5" shape=rectangle style=filled]
+	N4 [label="Supplier Management" color="#673AB7" fillcolor="#D1C4E9" shape=rect style=filled]
+	N5 [label="Baking" color="#4CAF50" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N6 [label="Recipe Development" color="#CD8FF2" fillcolor="#ECCFF5" shape=database style=filled]
+	N7 [label="Ingredient Traceability" color="#4CAF50" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	N8 [label="Branding and Marketing" color="#4CAF50" fillcolor="#C8E6C9" shape=preparation style=filled]
+	N9 [label="Ingredient Sourcing" color="#CD8FF2" fillcolor="#ECCFF5" shape=diamond style=filled]
+	N10 [label="Dietary Requirement Accommodation" color="#673AB7" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N11 [label="Customer Order Taking" color="#CD8FF2" fillcolor="#ECCFF5" shape=diamond style=filled]
+	S0 [label="" color="#673AB7" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#673AB7" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#CD8FF2" fillcolor="#ECCFF5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Kitchen Hygiene {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Kitchen Hygiene"
+		nest0_0 [label="Service Delivery" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+		nest0_1 [label="Catering Operations" color="#673AB7" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+		nest0_2 [label="Food Preparation" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	}
+	subgraph cluster_Cuisine Innovation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cuisine Innovation"
+		nest1_0 [label="Packaging" color="#CD8FF2" fillcolor="#ECCFF5" shape=hexagon style=filled]
+		nest1_1 [label="Inventory Management" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	}
+	N0 -> N1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N1 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest1_0 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N5 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_270.txt b/test/diagrams/scanned_easy/diagrams_270.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ab0e9ab9508a6bdc58ece0c59400c4f9e054686a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_270.txt
@@ -0,0 +1,28 @@
+<Baking, connectedTo, Branding and Marketing>
+<Baking, connectedTo, Customer Order Taking>
+<Baking, connectedTo, Ingredient Sourcing>
+<Baking, connectedTo, Recipe Development>
+<Branding and Marketing, connectedTo, Ingredient Sourcing>
+<Branding and Marketing, connectedTo, Packaging>
+<Catering Operations, connectedTo, Food Preparation>
+<Dietary Requirement Accommodation, connectedTo, Customer Order Taking>
+<Food Preparation, connectedTo, Food Safety Inspection>
+<Food Safety Inspection, connectedTo, Recipe Development>
+<Food Safety Inspection, connectedTo, Supply Chain Traceability>
+<Ingredient Sourcing, connectedTo, Dietary Requirement Accommodation>
+<Ingredient Traceability, connectedTo, Branding and Marketing>
+<Ingredient Traceability, connectedTo, Dietary Requirement Accommodation>
+<Ingredient Traceability, connectedTo, Ingredient Sourcing>
+<Inventory Management, connectedTo, Customer Order Taking>
+<Nutrition Analysis, connectedTo, Recipe Development>
+<Nutrition Analysis, connectedTo, Supplier Management>
+<Packaging, connectedTo, Inventory Management>
+<Recipe Development, connectedTo, Ingredient Traceability>
+<Restaurant Management, connectedTo, Food Safety Inspection>
+<Restaurant Management, connectedTo, Recipe Development>
+<Service Delivery, connectedTo, Catering Operations>
+<Supplier Management, connectedTo, Baking>
+<Supplier Management, connectedTo, Recipe Development>
+<Supplier Management, connectedTo, Service Delivery>
+<Supply Chain Traceability, connectedTo, Nutrition Analysis>
+<Supply Chain Traceability, connectedTo, Recipe Development>
diff --git a/test/diagrams/scanned_easy/diagrams_271.dot b/test/diagrams/scanned_easy/diagrams_271.dot
new file mode 100644
index 0000000000000000000000000000000000000000..34231ad6b45de4c99b1a99ceb4b0935cdb03291e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_271.dot
@@ -0,0 +1,76 @@
+digraph {
+	rankdir=TB
+	N0 [label="Scorekeeping" color="#FFA726" fillcolor="#FFF3E0" shape=document style=filled]
+	N1 [label="Sports Analytics" color="#FFA726" fillcolor="#FFF3E0" shape=inputoutput style=filled]
+	N2 [label="Tournament Organization" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N3 [label="Player Transfer" color="#7986CB" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N4 [label="Sports Psychology" color="#7986CB" fillcolor="#E8EAF6" shape=document style=filled]
+	N5 [label="Anti_Doping Control" color="#FFA726" fillcolor="#FFF3E0" shape=action style=filled]
+	N6 [label="Event Broadcasting" color="#3F51B5" fillcolor="#C5CAE9" shape=rectangle style=filled]
+	N7 [label="Refereeing" color="#3F51B5" fillcolor="#C5CAE9" shape=database style=filled]
+	N8 [label="Fan Club Management" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N9 [label="Coaching" color="#3F51B5" fillcolor="#C5CAE9" shape=database style=filled]
+	N10 [label="Community Sports Programs" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N11 [label="Sports Betting Regulation" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+	S0 [label="" color="#7986CB" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#7986CB" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Ticketing Sales {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ticketing Sales"
+		nest0_0 [label="Talent Scouting" color="#3F51B5" fillcolor="#C5CAE9" shape=inputoutput style=filled]
+		nest0_1 [label="Training Session" color="#FFA726" fillcolor="#FFF3E0" shape=preparation style=filled]
+		nest0_2 [label="Sports Medicine" color="#7986CB" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Fan Experience Enhancement {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Fan Experience Enhancement"
+		nest1_0 [label="Game Strategy" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+		nest1_1 [label="Esports Event Management" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+		nest1_2 [label="Accessibility in Sports Venues" color="#FFA726" fillcolor="#FFF3E0" shape=inputoutput style=filled]
+		nest1_3 [label="Team Management" color="#FFA726" fillcolor="#FFF3E0" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFA726" penwidth=1.5 style=dashed label="advises" dir=forward]
+	N2 -> N3 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N10 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#3F51B5" penwidth=1.5 style=dashed label="broadcasts" dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N4 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#7986CB" penwidth=1.5 style=dashed label="rehabilitates" dir=forward]
+	S0 -> N9 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#FFA726" penwidth=1.5 style=solid label="consults" dir=forward]
+	N6 -> M0 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N8 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#3F51B5" penwidth=1.5 style=dashed label="records" dir=forward]
+	M1 -> N8 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N4 -> M2 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N3 -> M2 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N9 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_272.dot b/test/diagrams/scanned_easy/diagrams_272.dot
new file mode 100644
index 0000000000000000000000000000000000000000..59ad25bd7587b52241b6ea7b72265e2a19dcac72
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_272.dot
@@ -0,0 +1,76 @@
+digraph {
+	rankdir=TB
+	N0 [label="Haute Couture Creation" color="#73C6BC" fillcolor="#D0EFEE" shape=rect style=filled]
+	N1 [label="Inventory Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=document style=filled]
+	N2 [label="Accessory Design" color="#CFCFCF" fillcolor="#F6F6F6" shape=action style=filled]
+	N3 [label="Ready_to_Wear Collection Launch" color="#73C6BC" fillcolor="#D0EFEE" shape=action style=filled]
+	N4 [label="Retail Sales" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N5 [label="Styling" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N6 [label="Global Sourcing Strategy" color="#CFCFCF" fillcolor="#F6F6F6" shape=vnode_shape style=filled]
+	N7 [label="PR and Media Outreach" color="#FFD54F" fillcolor="#FFF8E1" shape=inputoutput style=filled]
+	N8 [label="Seasonal Collection Planning" color="#FFD54F" fillcolor="#FFF8E1" shape=rectangle style=filled]
+	N9 [label="Packaging" color="#FFD54F" fillcolor="#FFF8E1" shape=vnode_shape style=filled]
+	N10 [label="Garment Fitting Session" color="#73C6BC" fillcolor="#D0EFEE" shape=rectangle style=filled]
+	N11 [label="Pattern Making" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+	N12 [label="Influencer Collaboration" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+	N13 [label="E_commerce Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=inputoutput style=filled]
+	N14 [label="Trend Research" color="#73C6BC" fillcolor="#D0EFEE" shape=database style=filled]
+	N15 [label="Material Sourcing" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	S0 [label="" color="#FFD54F" fillcolor="#FFF8E1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFD54F" fillcolor="#FFF8E1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#73C6BC" fillcolor="#D0EFEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#73C6BC" fillcolor="#D0EFEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Custom Apparel Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Custom Apparel Design"
+		nest0_0 [label="Brand Licensing" color="#CFCFCF" fillcolor="#F6F6F6" shape=database style=filled]
+		nest0_1 [label="Supply Chain Transparency" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+	}
+	subgraph cluster_Wholesale Distribution {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Wholesale Distribution"
+		nest1_0 [label="Brand Building" color="#FFD54F" fillcolor="#FFF8E1" shape=vnode_shape style=filled]
+		nest1_1 [label="Garment Production" color="#73C6BC" fillcolor="#D0EFEE" shape=document style=filled]
+		nest1_2 [label="Quality Check" color="#FFD54F" fillcolor="#FFF8E1" shape=multipledocuments style=filled]
+		nest1_3 [label="Footwear Production" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="sells" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFD54F" penwidth=1.5 style=solid label="inspects" dir=forward]
+	N14 -> nest0_0 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N3 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest1_0 [color="#CFCFCF" penwidth=1.5 style=dashed label="retails" dir=forward]
+	nest1_3 -> N14 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#000000" penwidth=1.5 style=dashed label="markets" dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#FFD54F" penwidth=1.5 style=solid label="brands" dir=forward]
+	S1 -> N15 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=solid label="manufactures" dir=forward]
+	M1 -> N10 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_272.txt b/test/diagrams/scanned_easy/diagrams_272.txt
new file mode 100644
index 0000000000000000000000000000000000000000..07cb36de199836c2e6bd6ae791f7454514320ef4
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_272.txt
@@ -0,0 +1,33 @@
+<Accessory Design, brands, Retail Sales>
+<Accessory Design, connectedTo, Material Sourcing>
+<Accessory Design, connectedTo, Ready_to_Wear Collection Launch>
+<Brand Building, connectedTo, Garment Production>
+<Brand Licensing, inspects, Supply Chain Transparency>
+<E_commerce Management, connectedTo, Trend Research>
+<Footwear Production, connectedTo, Trend Research>
+<Garment Fitting Session, connectedTo, Pattern Making>
+<Garment Production, connectedTo, Quality Check>
+<Global Sourcing Strategy, connectedTo, PR and Media Outreach>
+<Haute Couture Creation, connectedTo, Inventory Management>
+<Haute Couture Creation, connectedTo, Styling>
+<Influencer Collaboration, connectedTo, E_commerce Management>
+<Inventory Management, connectedTo, Accessory Design>
+<Inventory Management, connectedTo, E_commerce Management>
+<Inventory Management, connectedTo, Garment Fitting Session>
+<Inventory Management, connectedTo, Styling>
+<Inventory Management, markets, Influencer Collaboration>
+<PR and Media Outreach, connectedTo, Seasonal Collection Planning>
+<Packaging, sells, Garment Fitting Session>
+<Pattern Making, connectedTo, Influencer Collaboration>
+<Quality Check, connectedTo, Footwear Production>
+<Ready_to_Wear Collection Launch, connectedTo, Retail Sales>
+<Ready_to_Wear Collection Launch, connectedTo, Styling>
+<Ready_to_Wear Collection Launch, manufactures, Garment Fitting Session>
+<Retail Sales, connectedTo, Styling>
+<Retail Sales, retails, Brand Building>
+<Seasonal Collection Planning, connectedTo, Packaging>
+<Styling, connectedTo, Garment Fitting Session>
+<Styling, connectedTo, Global Sourcing Strategy>
+<Supply Chain Transparency, connectedTo, Ready_to_Wear Collection Launch>
+<Trend Research, connectedTo, Brand Licensing>
+<Trend Research, connectedTo, Material Sourcing>
diff --git a/test/diagrams/scanned_easy/diagrams_273.dot b/test/diagrams/scanned_easy/diagrams_273.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8cbe85ab1b1b05885c31917911bbf48802d17db9
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_273.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=TB
+	N0 [label="Employee Data Management" color="#AB47BC" fillcolor="#F3E5F5" shape=diamond style=filled]
+	N1 [label="Conflict Resolution" color="#AB47BC" fillcolor="#F3E5F5" shape=preparation style=filled]
+	N2 [label="Performance Appraisal" color="#9C27B0" fillcolor="#E1BEE7" shape=inputoutput style=filled]
+	N3 [label="Work_Life Balance Initiatives" color="#A1D7CD" fillcolor="#EDF5F3" shape=database style=filled]
+	N4 [label="Health and Safety Management" color="#A1D7CD" fillcolor="#EDF5F3" shape=hexagon style=filled]
+	N5 [label="Compliance Management" color="#A1D7CD" fillcolor="#EDF5F3" shape=diamond style=filled]
+	N6 [label="Compensation and Benefits" color="#9C27B0" fillcolor="#E1BEE7" shape=multipledocuments style=filled]
+	N7 [label="Skill Development Programs" color="#A1D7CD" fillcolor="#EDF5F3" shape=vnode_shape style=filled]
+	N8 [label="Leadership Training" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N9 [label="Remote Work Policy" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N10 [label="Employee Recognition Programs" color="#A1D7CD" fillcolor="#EDF5F3" shape=rect style=filled]
+	N11 [label="HR Policy Development" color="#A1D7CD" fillcolor="#EDF5F3" shape=inputoutput style=filled]
+	N12 [label="Team Building Activities" color="#A1D7CD" fillcolor="#EDF5F3" shape=database style=filled]
+	N13 [label="Succession Planning" color="#9C27B0" fillcolor="#E1BEE7" shape=hexagon style=filled]
+	N14 [label="Wellness Programs" color="#AB47BC" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N15 [label="Disciplinary Procedures" color="#AB47BC" fillcolor="#F3E5F5" shape=inputoutput style=filled]
+	N16 [label="Employee Handbook Creation" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	S0 [label="" color="#9C27B0" fillcolor="#E1BEE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#9C27B0" fillcolor="#E1BEE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#A1D7CD" fillcolor="#EDF5F3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#AB47BC" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Change Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Change Management"
+		nest0_0 [label="Diversity and Inclusion Initiatives" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+		nest0_1 [label="Organizational Development" color="#AB47BC" fillcolor="#F3E5F5" shape=inputoutput style=filled]
+		nest0_2 [label="Talent Management" color="#9C27B0" fillcolor="#E1BEE7" shape=preparation style=filled]
+	}
+	subgraph cluster_Exit Interviews {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Exit Interviews"
+		nest1_0 [label="Payroll Processing" color="#9C27B0" fillcolor="#E1BEE7" shape=document style=filled]
+		nest1_1 [label="Employee Training" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+		nest1_2 [label="Leave Management" color="#9C27B0" fillcolor="#E1BEE7" shape=diamond style=filled]
+		nest1_3 [label="HR Budgeting" color="#9C27B0" fillcolor="#E1BEE7" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N9 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	N13 -> nest1_0 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N4 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N13 -> S0 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N15 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N16 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N11 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M0 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N10 -> M0 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N12 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N5 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_273.txt b/test/diagrams/scanned_easy/diagrams_273.txt
new file mode 100644
index 0000000000000000000000000000000000000000..83414b11d2488b0134f737886808a41c2c79dc7d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_273.txt
@@ -0,0 +1,34 @@
+<Compensation and Benefits, connectedTo, Diversity and Inclusion Initiatives>
+<Compensation and Benefits, connectedTo, Skill Development Programs>
+<Compliance Management, connectedTo, Compensation and Benefits>
+<Conflict Resolution, connectedTo, Compliance Management>
+<Conflict Resolution, connectedTo, Performance Appraisal>
+<Disciplinary Procedures, connectedTo, Employee Handbook Creation>
+<Diversity and Inclusion Initiatives, connectedTo, Organizational Development>
+<Employee Data Management, connectedTo, Compliance Management>
+<Employee Data Management, connectedTo, Conflict Resolution>
+<Employee Recognition Programs, connectedTo, HR Policy Development>
+<Employee Recognition Programs, connectedTo, Team Building Activities>
+<Employee Training, connectedTo, Leave Management>
+<HR Budgeting, connectedTo, Health and Safety Management>
+<HR Policy Development, connectedTo, Employee Handbook Creation>
+<HR Policy Development, connectedTo, Succession Planning>
+<HR Policy Development, connectedTo, Team Building Activities>
+<Health and Safety Management, connectedTo, Compliance Management>
+<Leadership Training, connectedTo, Remote Work Policy>
+<Leave Management, connectedTo, HR Budgeting>
+<Organizational Development, connectedTo, Talent Management>
+<Payroll Processing, connectedTo, Employee Training>
+<Performance Appraisal, connectedTo, Compliance Management>
+<Performance Appraisal, connectedTo, Work_Life Balance Initiatives>
+<Remote Work Policy, connectedTo, Employee Recognition Programs>
+<Skill Development Programs, connectedTo, Leadership Training>
+<Skill Development Programs, connectedTo, Team Building Activities>
+<Succession Planning, connectedTo, Disciplinary Procedures>
+<Succession Planning, connectedTo, Employee Handbook Creation>
+<Succession Planning, connectedTo, Payroll Processing>
+<Succession Planning, connectedTo, Wellness Programs>
+<Talent Management, connectedTo, Remote Work Policy>
+<Team Building Activities, connectedTo, Succession Planning>
+<Wellness Programs, connectedTo, Disciplinary Procedures>
+<Work_Life Balance Initiatives, connectedTo, Health and Safety Management>
diff --git a/test/diagrams/scanned_easy/diagrams_274.txt b/test/diagrams/scanned_easy/diagrams_274.txt
new file mode 100644
index 0000000000000000000000000000000000000000..919958b5d6e2d4fb6d58aca0052f6007139decb4
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_274.txt
@@ -0,0 +1,40 @@
+<AI in Recruitment, connectedTo, Talent Pipeline Building>
+<Candidate Assessment Design, connectedTo, Job Description Creation>
+<Candidate Assessment Design, educates, Candidate Screening>
+<Candidate Relationship Management, connectedTo, Interview Conducting>
+<Candidate Relationship Management, connectedTo, Psychometric Testing>
+<Candidate Relationship Management, connectedTo, Social Recruiting>
+<Candidate Screening, connectedTo, Employer Branding>
+<Competency_Based Interviewing, connectedTo, Negotiation>
+<Compliance in Hiring, connectedTo, Psychometric Testing>
+<Compliance in Hiring, connectedTo, Social Recruiting>
+<Compliance in Hiring, connectedTo, Temporary Staffing>
+<Compliance in Hiring, regulates, Job Description Creation>
+<Employee Referral Program, connectedTo, Interview Panel Coordination>
+<Employee Referral Program, connectedTo, Talent Pipeline Building>
+<Employer Branding, hires, Executive Search>
+<Executive Search, connectedTo, Job Description Creation>
+<Executive Search, connectedTo, Psychometric Testing>
+<Global Recruitment Strategy, networks, Employee Referral Program>
+<Interview Conducting, connectedTo, Executive Search>
+<Interview Conducting, connectedTo, Psychometric Testing>
+<Interview Conducting, connectedTo, Social Recruiting>
+<Interview Panel Coordination, connectedTo, AI in Recruitment>
+<Job Description Creation, connectedTo, Social Recruiting>
+<Negotiation, connectedTo, Employee Referral Program>
+<Negotiation, connectedTo, Global Recruitment Strategy>
+<Negotiation, connectedTo, Recruiter Training>
+<Negotiation, declines, Talent Pipeline Building>
+<Psychometric Testing, connectedTo, Candidate Assessment Design>
+<Psychometric Testing, connectedTo, Social Recruiting>
+<Recruiter Training, connectedTo, Diversity Sourcing>
+<Recruiter Training, connectedTo, Employee Referral Program>
+<Recruiter Training, connectedTo, Global Recruitment Strategy>
+<Recruiter Training, connectedTo, Talent Pipeline Building>
+<Social Recruiting, connectedTo, Competency_Based Interviewing>
+<Talent Pipeline Building, headhunts, Diversity Sourcing>
+<Temporary Staffing, connectedTo, Candidate Assessment Design>
+<Temporary Staffing, connectedTo, Candidate Relationship Management>
+<Temporary Staffing, connectedTo, Interview Conducting>
+<Temporary Staffing, connectedTo, Psychometric Testing>
+<Temporary Staffing, protects, Competency_Based Interviewing>
diff --git a/test/diagrams/scanned_easy/diagrams_275.dot b/test/diagrams/scanned_easy/diagrams_275.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7e596c945835c802131dcf61c795633723aa14fa
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_275.dot
@@ -0,0 +1,65 @@
+digraph {
+	rankdir=BT
+	N0 [label="Customer Journey Mapping" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N1 [label="Knowledge Base Creation" color="#CD8FF2" fillcolor="#ECCFF5" shape=parallelogram style=filled]
+	N2 [label="Email Support" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+	N3 [label="Product Information Provision" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N4 [label="FAQ Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N5 [label="Account Management" color="#FFCC80" fillcolor="#FFF0CC" shape=preparation style=filled]
+	N6 [label="Customer Retention Strategies" color="#CD8FF2" fillcolor="#ECCFF5" shape=diamond style=filled]
+	N7 [label="Cross_selling Opportunities" color="#AABEC6" fillcolor="#E0E6E9" shape=predefinedprocess style=filled]
+	N8 [label="Phone Support" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+	N9 [label="Issue Escalation" color="#FFCC80" fillcolor="#FFF0CC" shape=diamond style=filled]
+	N10 [label="Service Blueprinting" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N11 [label="Sentiment Analysis" color="#FFCC80" fillcolor="#FFF0CC" shape=hexagon style=filled]
+	N12 [label="Customer Onboarding Support" color="#FFCC80" fillcolor="#FFF0CC" shape=database style=filled]
+	S1 [label="" color="#FFCC80" fillcolor="#FFF0CC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFCC80" fillcolor="#FFF0CC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#CD8FF2" fillcolor="#ECCFF5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Virtual Assistant Interaction {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Virtual Assistant Interaction"
+		nest0_0 [label="Complaint Trend Analysis" color="#FFCC80" fillcolor="#FFF0CC" shape=hexagon style=filled]
+		nest0_1 [label="Feedback Collection" color="#FFCC80" fillcolor="#FFF0CC" shape=vnode_shape style=filled]
+		nest0_2 [label="Inquiry Handling" color="#FFCC80" fillcolor="#FFF0CC" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Refund Processing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Refund Processing"
+		nest1_0 [label="Order Status Check" color="#AABEC6" fillcolor="#E0E6E9" shape=action style=filled]
+		nest1_1 [label="Complaint Resolution" color="#FFCC80" fillcolor="#FFF0CC" shape=preparation style=filled]
+		nest1_2 [label="Call Center Management" color="#FFCC80" fillcolor="#FFF0CC" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFCC80" penwidth=1.5 style=solid label="automates" dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest1_0 [color="#FFCC80" penwidth=1.5 style=solid label="emails" dir=forward]
+	nest1_2 -> N7 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N5 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_275.txt b/test/diagrams/scanned_easy/diagrams_275.txt
new file mode 100644
index 0000000000000000000000000000000000000000..bf95f5c13415e3b85a5833c9208a76f00aee1fb6
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_275.txt
@@ -0,0 +1,27 @@
+<Account Management, connectedTo, Customer Retention Strategies>
+<Call Center Management, connectedTo, Cross_selling Opportunities>
+<Complaint Resolution, connectedTo, Call Center Management>
+<Complaint Trend Analysis, connectedTo, Feedback Collection>
+<Cross_selling Opportunities, connectedTo, Phone Support>
+<Cross_selling Opportunities, emails, Order Status Check>
+<Customer Journey Mapping, connectedTo, Issue Escalation>
+<Customer Journey Mapping, connectedTo, Knowledge Base Creation>
+<Customer Retention Strategies, connectedTo, Cross_selling Opportunities>
+<Customer Retention Strategies, connectedTo, Issue Escalation>
+<Customer Retention Strategies, connectedTo, Phone Support>
+<Customer Retention Strategies, connectedTo, Sentiment Analysis>
+<Customer Retention Strategies, connectedTo, Service Blueprinting>
+<Email Support, connectedTo, Product Information Provision>
+<FAQ Management, connectedTo, Account Management>
+<Feedback Collection, connectedTo, Inquiry Handling>
+<Inquiry Handling, connectedTo, Issue Escalation>
+<Issue Escalation, connectedTo, Service Blueprinting>
+<Knowledge Base Creation, connectedTo, Account Management>
+<Knowledge Base Creation, connectedTo, Email Support>
+<Order Status Check, connectedTo, Complaint Resolution>
+<Phone Support, connectedTo, Complaint Trend Analysis>
+<Phone Support, connectedTo, Issue Escalation>
+<Product Information Provision, connectedTo, Account Management>
+<Product Information Provision, connectedTo, FAQ Management>
+<Sentiment Analysis, connectedTo, Customer Onboarding Support>
+<Service Blueprinting, automates, Sentiment Analysis>
diff --git a/test/diagrams/scanned_easy/diagrams_276.dot b/test/diagrams/scanned_easy/diagrams_276.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fa4df899caa5f86a602e408df9acf7ef368bbac6
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_276.dot
@@ -0,0 +1,66 @@
+digraph {
+	rankdir=RL
+	N0 [label="Circular Economy Practices" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+	N1 [label="Material Flow Management" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	N2 [label="Vendor Managed Inventory" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N3 [label="Demand Planning" color="#6EB76D" fillcolor="#E9F7E8" shape=rectangle style=filled]
+	N4 [label="Digital Twin of Supply Chain" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N5 [label="Risk Mitigation Strategies" color="#6EB76D" fillcolor="#E9F7E8" shape=rect style=filled]
+	N6 [label="Production Scheduling Integration" color="#64B5F6" fillcolor="#E3F2FD" shape=multipledocuments style=filled]
+	N7 [label="Collaborative Planning" color="#6EB76D" fillcolor="#E9F7E8" shape=vnode_shape style=filled]
+	S0 [label="" color="#64B5F6" fillcolor="#E3F2FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Warehousing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Warehousing"
+		nest0_0 [label="Transportation Management" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+		nest0_1 [label="Supplier Selection" color="#6EB76D" fillcolor="#E9F7E8" shape=rectangle style=filled]
+		nest0_2 [label="Resilience Planning" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	}
+	subgraph cluster_Container Tracking {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Container Tracking"
+		nest1_0 [label="Cold Chain Logistics" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+		nest1_1 [label="Third_Party Logistics Management" color="#64B5F6" fillcolor="#E3F2FD" shape=rect style=filled]
+		nest1_2 [label="Warehouse Automation" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+		nest1_3 [label="Hazardous Materials Handling" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFDA4E" penwidth=1.5 style=solid label="tracks" dir=forward]
+	N3 -> N4 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N2 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N5 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	N4 -> S1 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=dashed label="forecasts" dir=forward]
+	M1 -> N6 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N4 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_278.txt b/test/diagrams/scanned_easy/diagrams_278.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2bdb6b6729051707025f65663293fb1db0412a87
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_278.txt
@@ -0,0 +1,28 @@
+<Ballast Water Management, connectedTo, Fisheries Management>
+<Bunkering, connectedTo, Marine Research>
+<Fisheries Management, connectedTo, Pollution Control>
+<Fleet Management, connectedTo, Route Planning>
+<Fuel Consumption Optimization, connectedTo, Maritime Law Compliance>
+<Hydrographic Surveying, connectedTo, Ballast Water Management>
+<Inland Waterway Transport, connectedTo, Marine Insurance>
+<Marine Insurance, connectedTo, Pollution Control>
+<Marine Insurance, connectedTo, Salvage Operations>
+<Marine Insurance, connectedTo, Shipbuilding>
+<Marine Insurance, connectedTo, Terminal Management>
+<Marine Insurance, secures, Maritime Law Compliance>
+<Marine Research, connectedTo, Inland Waterway Transport>
+<Maritime Security, connectedTo, Marine Insurance>
+<Maritime Security, connectedTo, Vessel Chartering>
+<Pollution Control, certifies, Search and Rescue Coordination>
+<Route Planning, connectedTo, Terminal Management>
+<Salvage Operations, connectedTo, Shipbuilding>
+<Search and Rescue Coordination, audits, Fleet Management>
+<Search and Rescue Coordination, connectedTo, Hydrographic Surveying>
+<Shipbuilding, connectedTo, Fuel Consumption Optimization>
+<Terminal Management, connectedTo, Maritime Law Compliance>
+<Terminal Management, connectedTo, Shipbuilding>
+<Terminal Management, responds, Fuel Consumption Optimization>
+<Terminal Management, supplies, Salvage Operations>
+<Vessel Chartering, connectedTo, Bunkering>
+<Vessel Chartering, connectedTo, Inland Waterway Transport>
+<Vessel Chartering, routes, Marine Insurance>
diff --git a/test/diagrams/scanned_easy/diagrams_28.dot b/test/diagrams/scanned_easy/diagrams_28.dot
new file mode 100644
index 0000000000000000000000000000000000000000..01503f1c3f55d27fe73bed8db469f342f89f6a62
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_28.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=LR
+	N0 [label="Plumbing Work" color="#C0CA33" fillcolor="#F9FBE7" shape=action style=filled]
+	N1 [label="BIM Modeling" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N2 [label="Tunneling" color="#C0CA33" fillcolor="#F9FBE7" shape=vnode_shape style=filled]
+	N3 [label="Equipment Mobilization" color="#FFB74D" fillcolor="#FFF3E0" shape=preparation style=filled]
+	N4 [label="Steel Erection" color="#FFF176" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N5 [label="Structural Framing" color="#FFB74D" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N6 [label="Interior Finishing" color="#FFB74D" fillcolor="#FFF3E0" shape=document style=filled]
+	N7 [label="Occupancy Permit Acquisition" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N8 [label="Risk Assessment" color="#FFF176" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	N9 [label="Waste Management" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N0 -> N1 [color="#C0CA33" penwidth=1.5 style=solid label="inspects" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFF176" penwidth=1.5 style=solid label="installs" dir=forward]
+	N3 -> N4 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#C0CA33" penwidth=1.5 style=solid label="audits" dir=forward]
+	N6 -> N7 [color="#FFF176" penwidth=1.5 style=dashed label="designs" dir=forward]
+	N7 -> N8 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFF176" penwidth=1.5 style=solid label="plans" dir=forward]
+	N8 -> N7 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_28.txt b/test/diagrams/scanned_easy/diagrams_28.txt
new file mode 100644
index 0000000000000000000000000000000000000000..02053a701d10839bc0f7060edf763daa88423023
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_28.txt
@@ -0,0 +1,10 @@
+<BIM Modeling, connectedTo, Tunneling>
+<Equipment Mobilization, connectedTo, Steel Erection>
+<Interior Finishing, designs, Occupancy Permit Acquisition>
+<Occupancy Permit Acquisition, connectedTo, Risk Assessment>
+<Plumbing Work, inspects, BIM Modeling>
+<Risk Assessment, connectedTo, Occupancy Permit Acquisition>
+<Risk Assessment, plans, Waste Management>
+<Steel Erection, connectedTo, Structural Framing>
+<Structural Framing, audits, Interior Finishing>
+<Tunneling, installs, Equipment Mobilization>
diff --git a/test/diagrams/scanned_easy/diagrams_280.dot b/test/diagrams/scanned_easy/diagrams_280.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c1e7516595f2f90e3547ddb0097ae56c55989fc9
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_280.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=TB
+	N0 [label="Ice Sheet Dynamics" color="#00BCD4" fillcolor="#B2EBF2" shape=database style=filled]
+	N1 [label="Climate Policy Analysis" color="#A188D0" fillcolor="#DACBE3" shape=multipledocuments style=filled]
+	N2 [label="Water Resource Management under Climate Change" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	N3 [label="Ecosystem Response Modeling" color="#388E3C" fillcolor="#C8E6C9" shape=database style=filled]
+	N4 [label="Permafrost Thaw Assessment" color="#388E3C" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	N5 [label="Aerosol Impact Assessment" color="#388E3C" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N6 [label="Ocean Acidification Studies" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	N7 [label="Solar Radiation Management Research" color="#388E3C" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N8 [label="Renewable Energy Potential Assessment" color="#00BCD4" fillcolor="#B2EBF2" shape=document style=filled]
+	N9 [label="Biodiversity Impact Assessment" color="#A188D0" fillcolor="#DACBE3" shape=database style=filled]
+	N10 [label="Glacier Mass Balance Monitoring" color="#00BCD4" fillcolor="#B2EBF2" shape=box style=filled]
+	N11 [label="Atmospheric Monitoring" color="#388E3C" fillcolor="#C8E6C9" shape=diamond style=filled]
+	N12 [label="Extreme Weather Event Analysis" color="#A188D0" fillcolor="#DACBE3" shape=document style=filled]
+	N13 [label="Climate Resilient Agriculture" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	N14 [label="Ocean Current Analysis" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	N15 [label="Climate Finance Tracking" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	N16 [label="Satellite Data Interpretation" color="#388E3C" fillcolor="#C8E6C9" shape=action style=filled]
+	N17 [label="Public Engagement on Climate" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	S0 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#388E3C" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Carbon Sequestration Technologies {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Carbon Sequestration Technologies"
+		nest0_0 [label="Paleoclimate Reconstruction" color="#388E3C" fillcolor="#C8E6C9" shape=rectangle style=filled]
+		nest0_1 [label="Sea Level Rise Projection" color="#A188D0" fillcolor="#DACBE3" shape=parallelogram style=filled]
+		nest0_2 [label="Flood Risk Assessment" color="#388E3C" fillcolor="#C8E6C9" shape=rect style=filled]
+		nest0_3 [label="Climate Education Programs" color="#388E3C" fillcolor="#C8E6C9" shape=action style=filled]
+	}
+	subgraph cluster_Data Collection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Data Collection"
+		nest1_0 [label="Environmental Justice Study" color="#00BCD4" fillcolor="#B2EBF2" shape=parallelogram style=filled]
+		nest1_1 [label="Indigenous Knowledge Integration" color="#00BCD4" fillcolor="#B2EBF2" shape=rectangle style=filled]
+		nest1_2 [label="Mitigation Technology Evaluation" color="#A188D0" fillcolor="#DACBE3" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#A188D0" penwidth=1.5 style=solid label="reports" dir=forward]
+	N5 -> N6 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> nest0_0 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N15 -> nest1_0 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N7 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N11 -> S0 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N17 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N16 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> S1 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_282.dot b/test/diagrams/scanned_easy/diagrams_282.dot
new file mode 100644
index 0000000000000000000000000000000000000000..85b4aca16be3a868e4697ca10d1fd15201d244db
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_282.dot
@@ -0,0 +1,86 @@
+digraph {
+	rankdir=TB
+	N0 [label="Waste Logistics Optimization" color="#A1D7CD" fillcolor="#EDF5F3" shape=preparation style=filled]
+	N1 [label="Zero Waste Initiatives" color="#94C0C0" fillcolor="#CADEDE" shape=rectangle style=filled]
+	N2 [label="Glass Recycling" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N3 [label="Waste Audit" color="#94C0C0" fillcolor="#CADEDE" shape=multipledocuments style=filled]
+	N4 [label="Construction and Demolition Waste Management" color="#FF8A65" fillcolor="#FBE9E7" shape=document style=filled]
+	N5 [label="Container Management" color="#94C0C0" fillcolor="#CADEDE" shape=predefinedprocess style=filled]
+	N6 [label="Recycling Processing" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+	N7 [label="Waste Incineration" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N8 [label="Waste Collection" color="#A1D7CD" fillcolor="#EDF5F3" shape=multipledocuments style=filled]
+	N9 [label="Extended Producer Responsibility" color="#FF8A65" fillcolor="#FBE9E7" shape=document style=filled]
+	N10 [label="Organics Collection" color="#FF8A65" fillcolor="#FBE9E7" shape=vnode_shape style=filled]
+	N11 [label="Metal Recycling" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N12 [label="Waste Sorting" color="#94C0C0" fillcolor="#CADEDE" shape=action style=filled]
+	N13 [label="Closed_Loop Systems" color="#94C0C0" fillcolor="#CADEDE" shape=diamond style=filled]
+	N14 [label="Leachate Treatment" color="#A1D7CD" fillcolor="#EDF5F3" shape=box style=filled]
+	N15 [label="Textile Recycling" color="#94C0C0" fillcolor="#CADEDE" shape=rect style=filled]
+	N16 [label="Composting" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+	N17 [label="Resource Recovery" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N18 [label="Circular Economy Initiatives" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N19 [label="Paper Recycling" color="#FF8A65" fillcolor="#FBE9E7" shape=document style=filled]
+	S0 [label="" color="#FF8A65" fillcolor="#FBE9E7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FF8A65" fillcolor="#FBE9E7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#94C0C0" fillcolor="#CADEDE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#94C0C0" fillcolor="#CADEDE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FF8A65" fillcolor="#FBE9E7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Landfill Operation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Landfill Operation"
+		nest0_0 [label="Smart Waste Bins" color="#FF8A65" fillcolor="#FBE9E7" shape=vnode_shape style=filled]
+		nest0_1 [label="Waste Compaction" color="#FF8A65" fillcolor="#FBE9E7" shape=predefinedprocess style=filled]
+		nest0_2 [label="Industrial Waste Management" color="#94C0C0" fillcolor="#CADEDE" shape=diamond style=filled]
+	}
+	subgraph cluster_Biomedical Waste Handling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Biomedical Waste Handling"
+		nest1_0 [label="Waste Characterization Study" color="#FF8A65" fillcolor="#FBE9E7" shape=preparation style=filled]
+		nest1_1 [label="Electronic Waste Recycling" color="#A1D7CD" fillcolor="#EDF5F3" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#A1D7CD" penwidth=1.5 style=solid label="processes" dir=forward]
+	N4 -> N5 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=solid label="reuses" dir=forward]
+	N16 -> N17 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N17 -> N18 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N18 -> N19 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N13 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N15 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid label="extracts" dir=forward]
+	N8 -> nest1_0 [color="#000000" penwidth=1.5 style=solid label="incinerates" dir=forward]
+	nest1_1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N16 -> S0 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N19 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N18 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N10 -> S1 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N19 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	S1 -> N16 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M0 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	M0 -> N11 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#94C0C0" penwidth=1.5 style=dashed label="inspects" dir=forward]
+	N12 -> M1 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N16 -> M1 [color="#FF8A65" penwidth=1.5 style=solid label="separates" dir=forward]
+	M1 -> N19 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M2 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N3 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M2 -> N17 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_282.txt b/test/diagrams/scanned_easy/diagrams_282.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0a037c12d05c7bea0f7b2e6eb8addf9e01c6abdc
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_282.txt
@@ -0,0 +1,38 @@
+<Circular Economy Initiatives, connectedTo, Paper Recycling>
+<Closed_Loop Systems, connectedTo, Leachate Treatment>
+<Closed_Loop Systems, connectedTo, Smart Waste Bins>
+<Composting, connectedTo, Circular Economy Initiatives>
+<Composting, connectedTo, Paper Recycling>
+<Composting, connectedTo, Resource Recovery>
+<Composting, separates, Paper Recycling>
+<Construction and Demolition Waste Management, connectedTo, Container Management>
+<Construction and Demolition Waste Management, inspects, Paper Recycling>
+<Container Management, connectedTo, Metal Recycling>
+<Container Management, connectedTo, Recycling Processing>
+<Electronic Waste Recycling, connectedTo, Glass Recycling>
+<Extended Producer Responsibility, connectedTo, Metal Recycling>
+<Extended Producer Responsibility, connectedTo, Organics Collection>
+<Extended Producer Responsibility, connectedTo, Resource Recovery>
+<Glass Recycling, connectedTo, Waste Audit>
+<Industrial Waste Management, connectedTo, Textile Recycling>
+<Leachate Treatment, connectedTo, Textile Recycling>
+<Metal Recycling, connectedTo, Waste Sorting>
+<Organics Collection, connectedTo, Composting>
+<Organics Collection, connectedTo, Metal Recycling>
+<Organics Collection, connectedTo, Paper Recycling>
+<Organics Collection, connectedTo, Waste Sorting>
+<Recycling Processing, connectedTo, Waste Incineration>
+<Resource Recovery, connectedTo, Circular Economy Initiatives>
+<Smart Waste Bins, connectedTo, Waste Compaction>
+<Textile Recycling, reuses, Composting>
+<Waste Audit, connectedTo, Resource Recovery>
+<Waste Audit, processes, Construction and Demolition Waste Management>
+<Waste Characterization Study, extracts, Electronic Waste Recycling>
+<Waste Collection, connectedTo, Extended Producer Responsibility>
+<Waste Collection, incinerates, Waste Characterization Study>
+<Waste Compaction, connectedTo, Industrial Waste Management>
+<Waste Incineration, connectedTo, Waste Collection>
+<Waste Logistics Optimization, connectedTo, Zero Waste Initiatives>
+<Waste Sorting, connectedTo, Closed_Loop Systems>
+<Waste Sorting, connectedTo, Paper Recycling>
+<Zero Waste Initiatives, connectedTo, Glass Recycling>
diff --git a/test/diagrams/scanned_easy/diagrams_283.dot b/test/diagrams/scanned_easy/diagrams_283.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c796d0478da4b48497cfe24a854ec6c2cb3489f6
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_283.dot
@@ -0,0 +1,61 @@
+digraph {
+	rankdir=BT
+	N0 [label="Hydroelectric Power Generation" color="#D2D2D2" fillcolor="#F0F0F0" shape=document style=filled]
+	N1 [label="Public Awareness Campaigns" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+	N2 [label="Ecosystem Protection" color="#A188DB" fillcolor="#DED7F0" shape=hexagon style=filled]
+	N3 [label="Drinking Water Standards Compliance" color="#D2D2D2" fillcolor="#F0F0F0" shape=multipledocuments style=filled]
+	N4 [label="Water Resource Planning" color="#D2D2D2" fillcolor="#F0F0F0" shape=multipledocuments style=filled]
+	N5 [label="Billing and Revenue Management" color="#5C6BC0" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N6 [label="Agricultural Water Use Efficiency" color="#D2D2D2" fillcolor="#F0F0F0" shape=rectangle style=filled]
+	N7 [label="Stormwater Management" color="#D2D2D2" fillcolor="#F0F0F0" shape=vnode_shape style=filled]
+	N8 [label="Drought Management" color="#A188DB" fillcolor="#DED7F0" shape=hexagon style=filled]
+	S0 [label="" color="#A188DB" fillcolor="#DED7F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#D2D2D2" fillcolor="#F0F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#A188DB" fillcolor="#DED7F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Sewer System Inspection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Sewer System Inspection"
+		nest0_0 [label="Industrial Water Use Optimization" color="#A188DB" fillcolor="#DED7F0" shape=multipledocuments style=filled]
+		nest0_1 [label="Climate Change Adaptation for Water" color="#A188DB" fillcolor="#DED7F0" shape=multipledocuments style=filled]
+		nest0_2 [label="Water Loss Detection" color="#5C6BC0" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+		nest0_3 [label="Piping Network Repair" color="#A188DB" fillcolor="#DED7F0" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Dam Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Dam Management"
+		nest1_0 [label="Greywater Recycling" color="#D2D2D2" fillcolor="#F0F0F0" shape=parallelogram style=filled]
+		nest1_1 [label="Environmental Flow Assessment" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+		nest1_2 [label="Flood Control" color="#D2D2D2" fillcolor="#F0F0F0" shape=preparation style=filled]
+		nest1_3 [label="Wastewater Treatment" color="#A188DB" fillcolor="#DED7F0" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N2 [color="#A188DB" penwidth=1.5 style=solid label="treats" dir=forward]
+	nest1_0 -> nest1_1 [color="#D2D2D2" penwidth=1.5 style=dashed label="monitors" dir=forward]
+	nest1_1 -> nest1_2 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N4 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N2 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#D2D2D2" penwidth=1.5 style=solid label="protects" dir=forward]
+	N0 -> S1 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N2 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_284.dot b/test/diagrams/scanned_easy/diagrams_284.dot
new file mode 100644
index 0000000000000000000000000000000000000000..af1406369a7dae871eb25bb699bd57add2388fdc
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_284.dot
@@ -0,0 +1,64 @@
+digraph {
+	rankdir=TB
+	N0 [label="Cleaning and Processing" color="#B0C5CD" fillcolor="#DFE7EB" shape=rectangle style=filled]
+	N1 [label="Collection Point Management" color="#CDDC39" fillcolor="#E6EE9C" shape=rect style=filled]
+	N2 [label="Deposit_Return Schemes" color="#B0C5CD" fillcolor="#DFE7EB" shape=database style=filled]
+	N3 [label="Industrial Recycling Programs" color="#B0C5CD" fillcolor="#DFE7EB" shape=diamond style=filled]
+	N4 [label="Reprocessing into Raw Material" color="#F44336" fillcolor="#FFCDD2" shape=rectangle style=filled]
+	N5 [label="Construction Waste Recycling" color="#F44336" fillcolor="#FFCDD2" shape=preparation style=filled]
+	N6 [label="Paper Recycling" color="#CDDC39" fillcolor="#E6EE9C" shape=diamond style=filled]
+	N7 [label="Recycling Data Tracking" color="#F44336" fillcolor="#FFCDD2" shape=predefinedprocess style=filled]
+	N8 [label="Advanced Sorting Technologies" color="#F44336" fillcolor="#FFCDD2" shape=inputoutput style=filled]
+	S1 [label="" color="#CDDC39" fillcolor="#E6EE9C" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#B0C5CD" fillcolor="#DFE7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#CDDC39" fillcolor="#E6EE9C" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#CDDC39" fillcolor="#E6EE9C" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Waste Audit for Recycling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Waste Audit for Recycling"
+		nest0_0 [label="Contamination Reduction" color="#B0C5CD" fillcolor="#DFE7EB" shape=rectangle style=filled]
+		nest0_1 [label="Metal Recycling" color="#F44336" fillcolor="#FFCDD2" shape=diamond style=filled]
+		nest0_2 [label="Electronic Waste Recycling" color="#CDDC39" fillcolor="#E6EE9C" shape=document style=filled]
+		nest0_3 [label="Battery Recycling" color="#B0C5CD" fillcolor="#DFE7EB" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Plastic Recycling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Plastic Recycling"
+		nest1_0 [label="Recycling Policy Advocacy" color="#F44336" fillcolor="#FFCDD2" shape=inputoutput style=filled]
+		nest1_1 [label="Sorting and Segregation" color="#CDDC39" fillcolor="#E6EE9C" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#B0C5CD" penwidth=1.5 style=dashed label="forms" dir=forward]
+	nest0_0 -> nest0_1 [color="#F44336" penwidth=1.5 style=dashed label="compacts" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest1_0 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N1 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	S1 -> N3 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	S1 -> N2 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N3 -> S2 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N5 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N3 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N4 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_285.dot b/test/diagrams/scanned_easy/diagrams_285.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f2cbda12fd5d53214dbdaf4e75320d7355d10539
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_285.dot
@@ -0,0 +1,71 @@
+digraph {
+	rankdir=BT
+	N0 [label="Forest Health Monitoring" color="#F7BEE0" fillcolor="#FAEBF3" shape=document style=filled]
+	N1 [label="Public Access Management" color="#F7BEE0" fillcolor="#FAEBF3" shape=diamond style=filled]
+	N2 [label="Climate Change Adaptation in Forests" color="#FFF8A6" fillcolor="#FFFDE0" shape=action style=filled]
+	N3 [label="Illegal Logging Prevention" color="#F7BEE0" fillcolor="#FAEBF3" shape=rectangle style=filled]
+	N4 [label="Forest Certification" color="#BDBDBD" fillcolor="#F5F5F5" shape=document style=filled]
+	N5 [label="Urban Forestry Management" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N6 [label="Silviculture" color="#F7BEE0" fillcolor="#FAEBF3" shape=inputoutput style=filled]
+	N7 [label="Watershed Protection" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N8 [label="Drone Surveying for Forests" color="#F7BEE0" fillcolor="#FAEBF3" shape=inputoutput style=filled]
+	N9 [label="Tree Planting" color="#FFF8A6" fillcolor="#FFFDE0" shape=rectangle style=filled]
+	N10 [label="GIS Mapping for Forestry" color="#F7BEE0" fillcolor="#FAEBF3" shape=predefinedprocess style=filled]
+	N11 [label="Forest Land Use Planning" color="#FFF8A6" fillcolor="#FFFDE0" shape=multipledocuments style=filled]
+	N12 [label="Tree Nursery Management" color="#F7BEE0" fillcolor="#FAEBF3" shape=predefinedprocess style=filled]
+	N13 [label="Recreation Management" color="#BDBDBD" fillcolor="#F5F5F5" shape=predefinedprocess style=filled]
+	N14 [label="Afforestation" color="#FFF8A6" fillcolor="#FFFDE0" shape=vnode_shape style=filled]
+	N15 [label="Carbon Sequestration Monitoring" color="#BDBDBD" fillcolor="#F5F5F5" shape=parallelogram style=filled]
+	N16 [label="Forest Road Construction" color="#FFF8A6" fillcolor="#FFFDE0" shape=diamond style=filled]
+	S0 [label="" color="#BDBDBD" fillcolor="#F5F5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#F7BEE0" fillcolor="#FAEBF3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#BDBDBD" fillcolor="#F5F5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Biodiversity Conservation in Forests {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Biodiversity Conservation in Forests"
+		nest0_0 [label="Biomass Production from Forests" color="#F7BEE0" fillcolor="#FAEBF3" shape=diamond style=filled]
+		nest0_1 [label="Forestry Policy Development" color="#F7BEE0" fillcolor="#FAEBF3" shape=diamond style=filled]
+	}
+	subgraph cluster_Ecological Restoration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ecological Restoration"
+		nest1_0 [label="Logging Operations" color="#FFF8A6" fillcolor="#FFFDE0" shape=diamond style=filled]
+		nest1_1 [label="Indigenous Forestry Practices" color="#FFF8A6" fillcolor="#FFFDE0" shape=multipledocuments style=filled]
+		nest1_2 [label="Non_Timber Forest Product Collection" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="certifies" dir=forward]
+	N8 -> N9 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> nest0_0 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N2 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N12 -> nest1_0 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N1 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N16 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N8 -> S1 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N4 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N2 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_285.txt b/test/diagrams/scanned_easy/diagrams_285.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b249e3cca04790234ee6e87a3811c69f0cc90b8d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_285.txt
@@ -0,0 +1,30 @@
+<Afforestation, connectedTo, Biomass Production from Forests>
+<Afforestation, connectedTo, Carbon Sequestration Monitoring>
+<Biomass Production from Forests, connectedTo, Forestry Policy Development>
+<Carbon Sequestration Monitoring, connectedTo, Forest Road Construction>
+<Climate Change Adaptation in Forests, connectedTo, Illegal Logging Prevention>
+<Climate Change Adaptation in Forests, connectedTo, Watershed Protection>
+<Drone Surveying for Forests, connectedTo, Carbon Sequestration Monitoring>
+<Drone Surveying for Forests, connectedTo, Forest Road Construction>
+<Drone Surveying for Forests, connectedTo, Tree Planting>
+<Forest Certification, connectedTo, Urban Forestry Management>
+<Forest Health Monitoring, connectedTo, Forest Certification>
+<Forest Health Monitoring, connectedTo, Public Access Management>
+<Forest Land Use Planning, connectedTo, Tree Nursery Management>
+<Forestry Policy Development, connectedTo, Climate Change Adaptation in Forests>
+<GIS Mapping for Forestry, connectedTo, Forest Land Use Planning>
+<Illegal Logging Prevention, connectedTo, Forest Certification>
+<Illegal Logging Prevention, connectedTo, Forest Land Use Planning>
+<Illegal Logging Prevention, connectedTo, Forest Road Construction>
+<Indigenous Forestry Practices, connectedTo, Non_Timber Forest Product Collection>
+<Logging Operations, connectedTo, Indigenous Forestry Practices>
+<Non_Timber Forest Product Collection, connectedTo, Public Access Management>
+<Public Access Management, connectedTo, Climate Change Adaptation in Forests>
+<Public Access Management, connectedTo, Forest Certification>
+<Recreation Management, connectedTo, Afforestation>
+<Silviculture, connectedTo, Watershed Protection>
+<Tree Nursery Management, connectedTo, Logging Operations>
+<Tree Nursery Management, connectedTo, Recreation Management>
+<Tree Planting, connectedTo, GIS Mapping for Forestry>
+<Urban Forestry Management, connectedTo, Silviculture>
+<Watershed Protection, certifies, Drone Surveying for Forests>
diff --git a/test/diagrams/scanned_easy/diagrams_286.dot b/test/diagrams/scanned_easy/diagrams_286.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8d442e90656f68fda768d0d0730bdc1fc74e7864
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_286.dot
@@ -0,0 +1,73 @@
+digraph {
+	rankdir=TB
+	N0 [label="Spay or Neuter Procedure" color="#F44336" fillcolor="#FFCDD2" shape=document style=filled]
+	N1 [label="Genetic Counseling for Animals" color="#03A9F4" fillcolor="#B3E5FC" shape=rectangle style=filled]
+	N2 [label="Prescription" color="#607D8B" fillcolor="#CFD8DC" shape=diamond style=filled]
+	N3 [label="Hospice Care for Animals" color="#03A9F4" fillcolor="#B3E5FC" shape=hexagon style=filled]
+	N4 [label="Biosecurity Measures" color="#03A9F4" fillcolor="#B3E5FC" shape=rectangle style=filled]
+	N5 [label="Emergency Vet Services" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	N6 [label="Parasite Control" color="#607D8B" fillcolor="#CFD8DC" shape=preparation style=filled]
+	N7 [label="Anesthesia Administration" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+	N8 [label="Pharmacy Management" color="#607D8B" fillcolor="#CFD8DC" shape=multipledocuments style=filled]
+	N9 [label="Surgery" color="#03A9F4" fillcolor="#B3E5FC" shape=preparation style=filled]
+	N10 [label="Microchipping" color="#03A9F4" fillcolor="#B3E5FC" shape=rectangle style=filled]
+	N11 [label="Toxicology Testing" color="#F44336" fillcolor="#FFCDD2" shape=predefinedprocess style=filled]
+	N12 [label="Animal Welfare Assessment" color="#607D8B" fillcolor="#CFD8DC" shape=action style=filled]
+	N13 [label="Sterilization Protocols" color="#03A9F4" fillcolor="#B3E5FC" shape=document style=filled]
+	N14 [label="Dental Care" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+	N15 [label="Pet Check_up" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+	S0 [label="" color="#F44336" fillcolor="#FFCDD2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#F44336" fillcolor="#FFCDD2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#F44336" fillcolor="#FFCDD2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Behavioral Counseling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Behavioral Counseling"
+		nest0_0 [label="Herd Health Programs" color="#F44336" fillcolor="#FFCDD2" shape=multipledocuments style=filled]
+		nest0_1 [label="Allergy Testing" color="#03A9F4" fillcolor="#B3E5FC" shape=rectangle style=filled]
+		nest0_2 [label="Farm Animal Health Management" color="#03A9F4" fillcolor="#B3E5FC" shape=document style=filled]
+		nest0_3 [label="Medical Record Keeping" color="#03A9F4" fillcolor="#B3E5FC" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Veterinary Pathology {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Veterinary Pathology"
+		nest1_0 [label="Equine Care" color="#03A9F4" fillcolor="#B3E5FC" shape=rect style=filled]
+		nest1_1 [label="Post_operative Care" color="#F44336" fillcolor="#FFCDD2" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#03A9F4" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N5 -> N6 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#607D8B" penwidth=1.5 style=solid label="shelters" dir=forward]
+	nest0_3 -> N5 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N7 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#607D8B" penwidth=1.5 style=dashed label="monitors" dir=forward]
+	S0 -> N13 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N7 -> S1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#607D8B" penwidth=1.5 style=dashed label="operates" dir=forward]
+	M1 -> N3 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_286.txt b/test/diagrams/scanned_easy/diagrams_286.txt
new file mode 100644
index 0000000000000000000000000000000000000000..040f1dc1f6c4ddf1ee74058297af5f3ebb82596d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_286.txt
@@ -0,0 +1,32 @@
+<Allergy Testing, connectedTo, Farm Animal Health Management>
+<Anesthesia Administration, connectedTo, Animal Welfare Assessment>
+<Anesthesia Administration, connectedTo, Microchipping>
+<Anesthesia Administration, connectedTo, Pharmacy Management>
+<Anesthesia Administration, connectedTo, Sterilization Protocols>
+<Animal Welfare Assessment, connectedTo, Sterilization Protocols>
+<Biosecurity Measures, analyzes, Emergency Vet Services>
+<Dental Care, connectedTo, Pet Check_up>
+<Emergency Vet Services, connectedTo, Parasite Control>
+<Emergency Vet Services, shelters, Herd Health Programs>
+<Equine Care, connectedTo, Post_operative Care>
+<Farm Animal Health Management, connectedTo, Medical Record Keeping>
+<Genetic Counseling for Animals, connectedTo, Hospice Care for Animals>
+<Genetic Counseling for Animals, connectedTo, Prescription>
+<Herd Health Programs, connectedTo, Allergy Testing>
+<Hospice Care for Animals, connectedTo, Biosecurity Measures>
+<Medical Record Keeping, connectedTo, Emergency Vet Services>
+<Microchipping, connectedTo, Toxicology Testing>
+<Parasite Control, connectedTo, Anesthesia Administration>
+<Parasite Control, connectedTo, Equine Care>
+<Pharmacy Management, connectedTo, Surgery>
+<Post_operative Care, connectedTo, Anesthesia Administration>
+<Prescription, connectedTo, Hospice Care for Animals>
+<Spay or Neuter Procedure, connectedTo, Biosecurity Measures>
+<Spay or Neuter Procedure, connectedTo, Genetic Counseling for Animals>
+<Spay or Neuter Procedure, connectedTo, Sterilization Protocols>
+<Spay or Neuter Procedure, connectedTo, Surgery>
+<Spay or Neuter Procedure, monitors, Microchipping>
+<Spay or Neuter Procedure, operates, Hospice Care for Animals>
+<Sterilization Protocols, connectedTo, Dental Care>
+<Surgery, connectedTo, Microchipping>
+<Toxicology Testing, connectedTo, Animal Welfare Assessment>
diff --git a/test/diagrams/scanned_easy/diagrams_287.dot b/test/diagrams/scanned_easy/diagrams_287.dot
new file mode 100644
index 0000000000000000000000000000000000000000..34c8b97fa795cdf6bb957e7ded6fd79d1c7d375d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_287.dot
@@ -0,0 +1,66 @@
+digraph {
+	rankdir=TB
+	N0 [label="Field Trip Organization" color="#FFF176" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+	N1 [label="Daily Activity Reporting" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+	N2 [label="Special Needs Accommodation" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N3 [label="Early Literacy Programs" color="#FFF176" fillcolor="#FFFDE7" shape=database style=filled]
+	N4 [label="Nap Time Supervision" color="#AB47BC" fillcolor="#F3E5F5" shape=preparation style=filled]
+	N5 [label="Social Skill Development" color="#7986CB" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N6 [label="Infant Care" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N7 [label="Emergency Evacuation Drills" color="#AB47BC" fillcolor="#F3E5F5" shape=database style=filled]
+	N8 [label="Emotional Support" color="#AB47BC" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N9 [label="Diaper Changing" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+	N10 [label="Parent Communication" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N11 [label="Story Time Reading" color="#7986CB" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	S0 [label="" color="#7986CB" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#AB47BC" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#7986CB" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#AB47BC" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Outdoor Play Supervision {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Outdoor Play Supervision"
+		nest0_0 [label="Hygiene Practices" color="#FFF176" fillcolor="#FFFDE7" shape=multipledocuments style=filled]
+		nest0_1 [label="Potty Training Assistance" color="#7986CB" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Child Protection Policies {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Child Protection Policies"
+		nest1_0 [label="Outdoor Exploration" color="#AB47BC" fillcolor="#F3E5F5" shape=rectangle style=filled]
+		nest1_1 [label="Childcare Facility Licensing" color="#AB47BC" fillcolor="#F3E5F5" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N1 [color="#7986CB" penwidth=1.5 style=solid label="supports" dir=forward]
+	nest1_0 -> nest1_1 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest1_0 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N4 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N2 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#AB47BC" penwidth=1.5 style=solid label="inspects" dir=forward]
+	S0 -> N4 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S1 -> N2 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#FFF176" penwidth=1.5 style=solid label="administers" dir=forward]
+	M1 -> N8 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_29.dot b/test/diagrams/scanned_easy/diagrams_29.dot
new file mode 100644
index 0000000000000000000000000000000000000000..09dbc5c44f071d358b3c18e7051076392c707ea8
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_29.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=RL
+	N0 [label="Public Relations" color="#FFF9AE" fillcolor="#FFFCE6" shape=diamond style=filled]
+	N1 [label="Data Monetization" color="#FF9800" fillcolor="#FFE0B2" shape=rect style=filled]
+	N2 [label="Game Streaming" color="#B0C5CD" fillcolor="#DFE7EB" shape=inputoutput style=filled]
+	N3 [label="Augmented Reality Experiences" color="#FF9800" fillcolor="#FFE0B2" shape=multipledocuments style=filled]
+	N4 [label="Music Recording" color="#FF9800" fillcolor="#FFE0B2" shape=rect style=filled]
+	N5 [label="Publishing" color="#FF9800" fillcolor="#FFE0B2" shape=rectangle style=filled]
+	N6 [label="Talent Management" color="#FF9800" fillcolor="#FFE0B2" shape=database style=filled]
+	N7 [label="Photojournalism" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N8 [label="Subscription Management" color="#FF9800" fillcolor="#FFE0B2" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#FFF9AE" penwidth=1.5 style=dashed label="investigates" dir=forward]
+	N1 -> N2 [color="#B0C5CD" penwidth=1.5 style=dashed label="collects" dir=forward]
+	N2 -> N3 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FF9800" penwidth=1.5 style=dashed label="narrates" dir=forward]
+	N4 -> N5 [color="#FFF9AE" penwidth=1.5 style=solid label="publishes" dir=forward]
+	N5 -> N6 [color="#FFF9AE" penwidth=1.5 style=dashed label="sponsors" dir=forward]
+	N6 -> N7 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFF9AE" penwidth=1.5 style=solid label="innovates" dir=forward]
+	N8 -> N6 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_29.txt b/test/diagrams/scanned_easy/diagrams_29.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b041d1ab0ecaed81f370063f4b84450e4567c90e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_29.txt
@@ -0,0 +1,9 @@
+<Augmented Reality Experiences, narrates, Music Recording>
+<Data Monetization, collects, Game Streaming>
+<Game Streaming, connectedTo, Augmented Reality Experiences>
+<Music Recording, publishes, Publishing>
+<Photojournalism, innovates, Subscription Management>
+<Public Relations, investigates, Data Monetization>
+<Publishing, sponsors, Talent Management>
+<Subscription Management, connectedTo, Talent Management>
+<Talent Management, connectedTo, Photojournalism>
diff --git a/test/diagrams/scanned_easy/diagrams_292.dot b/test/diagrams/scanned_easy/diagrams_292.dot
new file mode 100644
index 0000000000000000000000000000000000000000..37c9b45aa31dfd105b36f81ec6bb274408744b40
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_292.dot
@@ -0,0 +1,62 @@
+digraph {
+	rankdir=TB
+	N0 [label="Route Calculation" color="#61CAC3" fillcolor="#C2E8E6" shape=multipledocuments style=filled]
+	N1 [label="ETA Estimation" color="#DCE775" fillcolor="#FCFCE7" shape=rectangle style=filled]
+	N2 [label="Celestial Navigation" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N3 [label="Voice Guidance Customization" color="#DCE775" fillcolor="#FCFCE7" shape=inputoutput style=filled]
+	N4 [label="Offline Map Support" color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+	N5 [label="Personalized Route Preferences" color="#00BCD4" fillcolor="#E0F7FA" shape=action style=filled]
+	N6 [label="Autonomous Vehicle Navigation" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+	S0 [label="" color="#00BCD4" fillcolor="#E0F7FA" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#61CAC3" fillcolor="#C2E8E6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#61CAC3" fillcolor="#C2E8E6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#DCE775" fillcolor="#FCFCE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Waypoint Setting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Waypoint Setting"
+		nest0_0 [label="Hazard Alerts" color="#00BCD4" fillcolor="#E0F7FA" shape=vnode_shape style=filled]
+		nest0_1 [label="Pedestrian Navigation" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+		nest0_2 [label="Satellite Navigation Systems" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+		nest0_3 [label="Topographic Mapping" color="#DCE775" fillcolor="#FCFCE7" shape=diamond style=filled]
+	}
+	subgraph cluster_Cycle Route Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cycle Route Planning"
+		nest1_0 [label="Altitude Tracking" color="#DCE775" fillcolor="#FCFCE7" shape=predefinedprocess style=filled]
+		nest1_1 [label="GPS Positioning" color="#61CAC3" fillcolor="#C2E8E6" shape=hexagon style=filled]
+		nest1_2 [label="Map Display" color="#00BCD4" fillcolor="#E0F7FA" shape=parallelogram style=filled]
+		nest1_3 [label="Geocoding" color="#DCE775" fillcolor="#FCFCE7" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N6 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest1_0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N5 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#DCE775" penwidth=1.5 style=dashed label="secures" dir=forward]
+	S0 -> N4 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S2 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	S2 -> N6 [color="#DCE775" penwidth=1.5 style=solid label="corrects" dir=forward]
+	S2 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid label="interprets" dir=forward]
+	N1 -> M0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	M1 -> N5 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_292.txt b/test/diagrams/scanned_easy/diagrams_292.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d641b2f1bc0a149db2edf9e9da2bad2f0427c779
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_292.txt
@@ -0,0 +1,24 @@
+<Altitude Tracking, connectedTo, GPS Positioning>
+<Celestial Navigation, connectedTo, Voice Guidance Customization>
+<Celestial Navigation, interprets, Offline Map Support>
+<ETA Estimation, connectedTo, Celestial Navigation>
+<ETA Estimation, connectedTo, Offline Map Support>
+<ETA Estimation, connectedTo, Personalized Route Preferences>
+<ETA Estimation, secures, Personalized Route Preferences>
+<GPS Positioning, connectedTo, Map Display>
+<Geocoding, connectedTo, Personalized Route Preferences>
+<Hazard Alerts, connectedTo, Pedestrian Navigation>
+<Map Display, connectedTo, Geocoding>
+<Offline Map Support, connectedTo, Personalized Route Preferences>
+<Pedestrian Navigation, connectedTo, Satellite Navigation Systems>
+<Personalized Route Preferences, connectedTo, Altitude Tracking>
+<Personalized Route Preferences, connectedTo, Autonomous Vehicle Navigation>
+<Route Calculation, connectedTo, ETA Estimation>
+<Route Calculation, connectedTo, Offline Map Support>
+<Route Calculation, connectedTo, Personalized Route Preferences>
+<Satellite Navigation Systems, connectedTo, Topographic Mapping>
+<Topographic Mapping, connectedTo, Autonomous Vehicle Navigation>
+<Voice Guidance Customization, connectedTo, Hazard Alerts>
+<Voice Guidance Customization, connectedTo, Offline Map Support>
+<Voice Guidance Customization, connectedTo, Personalized Route Preferences>
+<Voice Guidance Customization, corrects, Autonomous Vehicle Navigation>
diff --git a/test/diagrams/scanned_easy/diagrams_293.dot b/test/diagrams/scanned_easy/diagrams_293.dot
new file mode 100644
index 0000000000000000000000000000000000000000..93e8655d6677e8eae9b4a4c7cf3da24c334453b2
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_293.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=TB
+	N0 [label="Material Research and Development" color="#F06292" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N1 [label="Aerospace Part Production" color="#673AB7" fillcolor="#D1C4E9" shape=database style=filled]
+	N2 [label="Maintenance and Repair of Printers" color="#F06292" fillcolor="#FCE4EC" shape=multipledocuments style=filled]
+	N3 [label="Quality Control" color="#F06292" fillcolor="#FCE4EC" shape=predefinedprocess style=filled]
+	N4 [label="Distributed Manufacturing" color="#F06292" fillcolor="#FCE4EC" shape=rect style=filled]
+	N5 [label="Slicing Software Operation" color="#673AB7" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N6 [label="Printing Process" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N7 [label="Rapid Manufacturing" color="#F06292" fillcolor="#FCE4EC" shape=predefinedprocess style=filled]
+	N8 [label="Reverse Engineering with 3D Printing" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	N9 [label="Educational Applications" color="#82DAFF" fillcolor="#C8EDFF" shape=ellipse style=filled]
+	N10 [label="Consumer Product Creation" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N11 [label="Additive Manufacturing" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N12 [label="Scaffolding for Tissue Engineering" color="#F06292" fillcolor="#FCE4EC" shape=document style=filled]
+	N13 [label="Material Selection" color="#F06292" fillcolor="#FCE4EC" shape=multipledocuments style=filled]
+	N14 [label="Direct Metal Laser Sintering" color="#F06292" fillcolor="#FCE4EC" shape=vnode_shape style=filled]
+	S0 [label="" color="#82DAFF" fillcolor="#C8EDFF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#82DAFF" fillcolor="#C8EDFF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#82DAFF" fillcolor="#C8EDFF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#82DAFF" fillcolor="#C8EDFF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#F06292" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#F06292" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Intellectual Property Protection for Designs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Intellectual Property Protection for Designs"
+		nest0_0 [label="Printing Parameter Optimization" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+		nest0_1 [label="Support Structure Design" color="#82DAFF" fillcolor="#C8EDFF" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Print Farm Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Print Farm Management"
+		nest1_0 [label="Food Printing" color="#F06292" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+		nest1_1 [label="Stereolithography" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+		nest1_2 [label="Bioprinting" color="#82DAFF" fillcolor="#C8EDFF" shape=inputoutput style=filled]
+		nest1_3 [label="Printer Setup" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	}
+	N0 -> N1 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#673AB7" penwidth=1.5 style=solid label="engineers" dir=forward]
+	N4 -> nest0_0 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid label="shares" dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N11 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N11 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N10 -> S0 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=dashed label="maintains" dir=forward]
+	S1 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	S2 -> N14 [color="#82DAFF" penwidth=1.5 style=dashed label="tests" dir=forward]
+	N3 -> M0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M0 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N11 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M1 [color="#F06292" penwidth=1.5 style=solid label="prints" dir=forward]
+	M1 -> N12 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> M2 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N11 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_294.dot b/test/diagrams/scanned_easy/diagrams_294.dot
new file mode 100644
index 0000000000000000000000000000000000000000..11c9c4fe865a67f8c30d68858917aaaf98511334
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_294.dot
@@ -0,0 +1,73 @@
+digraph {
+	rankdir=RL
+	N0 [label="X_ray Diffraction" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	N1 [label="Quantum Dots" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N2 [label="Public Perception of Nanotechnology" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	N3 [label="Food Packaging Improvement" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N4 [label="Scanning Electron Microscopy" color="#2196F3" fillcolor="#BBDEFB" shape=parallelogram style=filled]
+	N5 [label="Nanoelectronics" color="#80DDEA" fillcolor="#D3F7F9" shape=preparation style=filled]
+	N6 [label="Nanosensors" color="#2196F3" fillcolor="#BBDEFB" shape=parallelogram style=filled]
+	N7 [label="Lab_on_a_Chip Devices" color="#FFB2A5" fillcolor="#FFDCD6" shape=inputoutput style=filled]
+	N8 [label="Advanced Materials Research" color="#2196F3" fillcolor="#BBDEFB" shape=document style=filled]
+	N9 [label="Nanotoxicology" color="#2196F3" fillcolor="#BBDEFB" shape=rectangle style=filled]
+	N10 [label="Transmission Electron Microscopy" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+	N11 [label="Nanocomposites" color="#FFB2A5" fillcolor="#FFDCD6" shape=multipledocuments style=filled]
+	N12 [label="Nanocoatings" color="#FFB2A5" fillcolor="#FFDCD6" shape=diamond style=filled]
+	S0 [label="" color="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Risk Assessment of Nanomaterials {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Risk Assessment of Nanomaterials"
+		nest0_0 [label="Catalysis at Nanoscale" color="#2196F3" fillcolor="#BBDEFB" shape=inputoutput style=filled]
+		nest0_1 [label="Nanofabrication Techniques" color="#FFB2A5" fillcolor="#FFDCD6" shape=rectangle style=filled]
+		nest0_2 [label="Atomic Force Microscopy" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+		nest0_3 [label="Nanodevice Fabrication" color="#80DDEA" fillcolor="#D3F7F9" shape=diamond style=filled]
+	}
+	subgraph cluster_Biosensors {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Biosensors"
+		nest1_0 [label="Quantum Computing Integration" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+		nest1_1 [label="Water Purification using Nanomaterials" color="#80DDEA" fillcolor="#D3F7F9" shape=action style=filled]
+		nest1_2 [label="Spintronics" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#80DDEA" penwidth=1.5 style=solid label="assembles" dir=forward]
+	N3 -> N4 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="engineers" dir=forward]
+	N8 -> N9 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N11 -> nest0_0 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest1_0 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N8 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N8 -> S0 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N7 -> S1 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N9 -> S2 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N12 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	M1 -> N9 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_295.txt b/test/diagrams/scanned_easy/diagrams_295.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c5055defbd8cc27017af5365351aed7ed025146d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_295.txt
@@ -0,0 +1,29 @@
+<Cryogenic Systems for Qubits, connectedTo, Quantum Computing Education>
+<Financial Modeling with Quantum Computing, connectedTo, Vacuum Systems for Trapped Ions>
+<Laser Cooling for Ions, connectedTo, Quantum Cloud Computing Services>
+<Microwave Control for Qubits, connectedTo, Quantum Cryptography>
+<Optimization Problems with Quantum Annealing, connectedTo, Quantum Network Development>
+<Post_Quantum Cryptography, connectedTo, Quantum Programming Languages>
+<Quantum Algorithm Development, connectedTo, Quantum Sensing>
+<Quantum Annealing, optimizes, Quantum Teleportation Research>
+<Quantum Cloud Computing Services, connectedTo, Cryogenic Systems for Qubits>
+<Quantum Cloud Computing Services, connectedTo, Microwave Control for Qubits>
+<Quantum Communication Protocols, connectedTo, Microwave Control for Qubits>
+<Quantum Communication Protocols, connectedTo, Optimization Problems with Quantum Annealing>
+<Quantum Communication Protocols, connectedTo, Superconducting Qubits>
+<Quantum Computing Benchmarking, connectedTo, Quantum Annealing>
+<Quantum Computing Education, connectedTo, Quantum Sensing>
+<Quantum Cryptography, connectedTo, Quantum Computing Benchmarking>
+<Quantum Cryptography, connectedTo, Vacuum Systems for Trapped Ions>
+<Quantum Key Distribution, connectedTo, Quantum Software Development Kit>
+<Quantum Network Development, connectedTo, Quantum Key Distribution>
+<Quantum Programming Languages, connectedTo, Laser Cooling for Ions>
+<Quantum Sensing, connectedTo, Quantum Advantage Demonstration>
+<Quantum Software Development Kit, connectedTo, Superconducting Qubits>
+<Quantum Teleportation Research, connectedTo, Financial Modeling with Quantum Computing>
+<Superconducting Qubits, connectedTo, Quantum Annealing>
+<Superconducting Qubits, connectedTo, Quantum Cloud Computing Services>
+<Superconducting Qubits, connectedTo, Quantum Computing Benchmarking>
+<Superconducting Qubits, connectedTo, Vacuum Systems for Trapped Ions>
+<Vacuum Systems for Trapped Ions, connectedTo, Post_Quantum Cryptography>
+<Vacuum Systems for Trapped Ions, connectedTo, Quantum Algorithm Development>
diff --git a/test/diagrams/scanned_easy/diagrams_296.txt b/test/diagrams/scanned_easy/diagrams_296.txt
new file mode 100644
index 0000000000000000000000000000000000000000..779982055c5e159bc0d812b04c9d30780757f445
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_296.txt
@@ -0,0 +1,33 @@
+<AR for Navigation, connectedTo, Hand Tracking and Interaction>
+<Augmented Reality App Development, connectedTo, Retail Experience Enhancement>
+<Content Creation for AR or VR, connectedTo, AR for Navigation>
+<Educational Content Development, connectedTo, Haptic Feedback Integration>
+<Educational Content Development, navigates, Virtual Tourism Experiences>
+<Ethical Considerations in AR or VR, connectedTo, Neuro_VR Interfaces>
+<Eye Tracking, connectedTo, Virtual Showrooms>
+<Field of View Optimization, connectedTo, Industrial Maintenance Support>
+<Gesture Recognition, connectedTo, Live Event Streaming in VR>
+<Hand Tracking and Interaction, connectedTo, Medical Applications>
+<Haptic Feedback Integration, connectedTo, Augmented Reality App Development>
+<Haptic Feedback Integration, connectedTo, Content Creation for AR or VR>
+<Haptic Feedback Integration, connectedTo, Software Development Kit Integration>
+<Haptic Feedback Integration, connectedTo, Virtual Reality Game Development>
+<Headset Development, connectedTo, Field of View Optimization>
+<Headset Development, connectedTo, Spatial Audio Implementation>
+<Industrial Maintenance Support, connectedTo, AR for Navigation>
+<Live Event Streaming in VR, connectedTo, Ethical Considerations in AR or VR>
+<Live Event Streaming in VR, connectedTo, Haptic Feedback Integration>
+<Medical Applications, connectedTo, Virtual Reality Game Development>
+<Neuro_VR Interfaces, connectedTo, Hand Tracking and Interaction>
+<Neuro_VR Interfaces, connectedTo, Haptic Feedback Integration>
+<Neuro_VR Interfaces, connectedTo, Software Development Kit Integration>
+<Performance Optimization, connectedTo, Wearable AR Devices>
+<Retail Experience Enhancement, connectedTo, Eye Tracking>
+<Retail Experience Enhancement, connectedTo, Performance Optimization>
+<Software Development Kit Integration, connectedTo, Headset Development>
+<Spatial Audio Implementation, connectedTo, Content Creation for AR or VR>
+<Training Simulations, connectedTo, Gesture Recognition>
+<Training Simulations, connectedTo, Haptic Feedback Integration>
+<Virtual Reality Game Development, connectedTo, Augmented Reality App Development>
+<Virtual Tourism Experiences, connectedTo, Training Simulations>
+<Wearable AR Devices, connectedTo, Haptic Feedback Integration>
diff --git a/test/diagrams/scanned_easy/diagrams_298.dot b/test/diagrams/scanned_easy/diagrams_298.dot
new file mode 100644
index 0000000000000000000000000000000000000000..466c23b906f92e2e8579039537c88e308054870f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_298.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=LR
+	N0 [label="Music Production" color="#9C27B0" fillcolor="#E1BEE7" shape=rect style=filled]
+	N1 [label="Merchandise Sales" color="#9C27B0" fillcolor="#E1BEE7" shape=parallelogram style=filled]
+	N2 [label="Fan Engagement Strategy" color="#9C27B0" fillcolor="#E1BEE7" shape=database style=filled]
+	N3 [label="Synthesizer Programming" color="#FFF8A6" fillcolor="#FFFDE0" shape=vnode_shape style=filled]
+	N4 [label="Tour Management" color="#9C27B0" fillcolor="#E1BEE7" shape=vnode_shape style=filled]
+	N5 [label="Performance" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N6 [label="Artist Management" color="#FFF8A6" fillcolor="#FFFDE0" shape=multipledocuments style=filled]
+	N7 [label="Music Therapy" color="#9C27B0" fillcolor="#E1BEE7" shape=parallelogram style=filled]
+	N8 [label="Music Video Production" color="#FFF8A6" fillcolor="#FFFDE0" shape=diamond style=filled]
+	N9 [label="Audio Engineering" color="#FFF8A6" fillcolor="#FFFDE0" shape=predefinedprocess style=filled]
+	N10 [label="Copyright Management" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+	N11 [label="Beat Making" color="#FFF8A6" fillcolor="#FFFDE0" shape=action style=filled]
+	N12 [label="Songwriting" color="#FFF8A6" fillcolor="#FFFDE0" shape=action style=filled]
+	N13 [label="Sound System Design" color="#A188D0" fillcolor="#DACBE3" shape=vnode_shape style=filled]
+	N14 [label="Music Education" color="#FFF8A6" fillcolor="#FFFDE0" shape=parallelogram style=filled]
+	N15 [label="Live Sound Engineering" color="#A188D0" fillcolor="#DACBE3" shape=rectangle style=filled]
+	N16 [label="A&R" color="#9C27B0" fillcolor="#E1BEE7" shape=ellipse style=filled]
+	S0 [label="" color="#9C27B0" fillcolor="#E1BEE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Arrangement {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Arrangement"
+		nest0_0 [label="Digital Audio Workstation Operation" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+		nest0_1 [label="Music for Film or TV or Games" color="#9C27B0" fillcolor="#E1BEE7" shape=diamond style=filled]
+		nest0_2 [label="Concert Promotion" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+	}
+	subgraph cluster_Crowdfunding for Music Projects {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Crowdfunding for Music Projects"
+		nest1_0 [label="Sampling" color="#9C27B0" fillcolor="#E1BEE7" shape=vnode_shape style=filled]
+		nest1_1 [label="Instrumental Performance" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	}
+	N0 -> N1 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N3 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest1_0 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N14 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N16 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N16 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid label="learns" dir=forward]
+	N6 -> M1 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N13 -> M1 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	M1 -> N16 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_3.dot b/test/diagrams/scanned_easy/diagrams_3.dot
new file mode 100644
index 0000000000000000000000000000000000000000..eba7c45329c58d0361f1730442e0594770d2682c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_3.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=RL
+	N0 [label="Tool Path Generation" color="#C0CA33" fillcolor="#F9FBE7" shape=rect style=filled]
+	N1 [label="Supplier Qualification" color="#FFE69C" fillcolor="#FFF9D4" shape=multipledocuments style=filled]
+	N2 [label="Maintenance" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N3 [label="Defect Analysis" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N4 [label="Supply Chain Synchronization" color="#FFE69C" fillcolor="#FFF9D4" shape=multipledocuments style=filled]
+	N5 [label="Automated Guided Vehicle Operation" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N6 [label="Work_in_Progress Monitoring" color="#FF5722" fillcolor="#FFCCBC" shape=predefinedprocess style=filled]
+	N7 [label="Component Sourcing" color="#C0CA33" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	N8 [label="Ergonomics Assessment" color="#FFE69C" fillcolor="#FFF9D4" shape=preparation style=filled]
+	N0 -> N1 [color="#FFE69C" penwidth=1.5 style=dashed label="calibrates" dir=forward]
+	N1 -> N2 [color="#FF5722" penwidth=1.5 style=dashed label="prototypes" dir=forward]
+	N2 -> N3 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#C0CA33" penwidth=1.5 style=solid label="checks" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#C0CA33" penwidth=1.5 style=solid label="cuts" dir=forward]
+	N6 -> N7 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#C0CA33" penwidth=1.5 style=dashed label="cleans" dir=forward]
+	N2 -> N1 [color="#FFE69C" penwidth=1.5 style=solid label="plans" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_3.txt b/test/diagrams/scanned_easy/diagrams_3.txt
new file mode 100644
index 0000000000000000000000000000000000000000..53e3e77f53aac6205b8cfd96ad421ddd91769ec0
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_3.txt
@@ -0,0 +1,9 @@
+<Automated Guided Vehicle Operation, cuts, Work_in_Progress Monitoring>
+<Component Sourcing, cleans, Ergonomics Assessment>
+<Defect Analysis, checks, Supply Chain Synchronization>
+<Maintenance, connectedTo, Defect Analysis>
+<Maintenance, plans, Supplier Qualification>
+<Supplier Qualification, prototypes, Maintenance>
+<Supply Chain Synchronization, connectedTo, Automated Guided Vehicle Operation>
+<Tool Path Generation, calibrates, Supplier Qualification>
+<Work_in_Progress Monitoring, connectedTo, Component Sourcing>
diff --git a/test/diagrams/scanned_easy/diagrams_30.dot b/test/diagrams/scanned_easy/diagrams_30.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5719505eeeed36a0a2acb00f73a424f4cb4af764
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_30.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=TB
+	N0 [label="Beverage Production" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	N1 [label="Restaurant Reservation System" color="#FFC107" fillcolor="#FFECB3" shape=hexagon style=filled]
+	N2 [label="Inventory Management" color="#F44336" fillcolor="#FFCDD2" shape=document style=filled]
+	N3 [label="Cooking" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N4 [label="Nutrition Analysis" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	N5 [label="Food Safety Inspection" color="#FFC107" fillcolor="#FFECB3" shape=action style=filled]
+	N6 [label="Storage Solutions" color="#FFC107" fillcolor="#FFECB3" shape=parallelogram style=filled]
+	N7 [label="Supply Chain Traceability" color="#F44336" fillcolor="#FFCDD2" shape=diamond style=filled]
+	N8 [label="Waste Reduction" color="#FFC107" fillcolor="#FFECB3" shape=rectangle style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="heats" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="freezes" dir=forward]
+	N2 -> N3 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFC107" penwidth=1.5 style=dashed label="prepares" dir=forward]
+	N5 -> N6 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#EAEFA5" penwidth=1.5 style=solid label="complies" dir=forward]
+	N7 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_30.txt b/test/diagrams/scanned_easy/diagrams_30.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e0a30efe172d6b80518cf196946ef3326e9c4083
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_30.txt
@@ -0,0 +1,9 @@
+<Beverage Production, heats, Restaurant Reservation System>
+<Cooking, connectedTo, Nutrition Analysis>
+<Food Safety Inspection, connectedTo, Storage Solutions>
+<Inventory Management, connectedTo, Cooking>
+<Nutrition Analysis, prepares, Food Safety Inspection>
+<Restaurant Reservation System, freezes, Inventory Management>
+<Storage Solutions, connectedTo, Supply Chain Traceability>
+<Supply Chain Traceability, complies, Waste Reduction>
+<Supply Chain Traceability, connectedTo, Storage Solutions>
diff --git a/test/diagrams/scanned_easy/diagrams_301.txt b/test/diagrams/scanned_easy/diagrams_301.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ca345b19f71425a4ec6efa965607b2f668699916
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_301.txt
@@ -0,0 +1,29 @@
+<Big Data Processing, connectedTo, Data Quality Assurance>
+<Big Data Processing, connectedTo, Sales Performance Analysis>
+<Business User Training on Analytics, connectedTo, Data Warehouse Design>
+<Business User Training on Analytics, connectedTo, Text Analytics>
+<Customer Analytics, connectedTo, Data Collection>
+<Customer Analytics, connectedTo, Data Mining>
+<Customer Analytics, connectedTo, Data Quality Assurance>
+<Data Cleaning, connectedTo, Data Pipeline Development>
+<Data Collection, supports, Data Governance>
+<Data Governance, connectedTo, Big Data Processing>
+<Data Governance, connectedTo, Data Quality Assurance>
+<Data Governance, connectedTo, Data Storytelling>
+<Data Mining, connectedTo, Data Cleaning>
+<Data Pipeline Development, connectedTo, Data Collection>
+<Data Security Best Practices, connectedTo, Predictive Analytics>
+<Data Storytelling, connectedTo, Big Data Processing>
+<Data Storytelling, connectedTo, Geospatial Analysis>
+<Data Transformation, connectedTo, Data Quality Assurance>
+<Data Warehouse Design, connectedTo, Customer Analytics>
+<Data Warehouse Design, connectedTo, Data Pipeline Development>
+<Data Warehouse Design, connectedTo, Data Quality Assurance>
+<Data Warehouse Design, connectedTo, Predictive Analytics>
+<Data Warehouse Design, connectedTo, Text Analytics>
+<Geospatial Analysis, connectedTo, Data Transformation>
+<HR Data Analytics, connectedTo, Marketing Campaign Analysis>
+<Marketing Campaign Analysis, connectedTo, Data Security Best Practices>
+<Predictive Analytics, connectedTo, Text Analytics>
+<Sales Performance Analysis, connectedTo, HR Data Analytics>
+<Text Analytics, connectedTo, Customer Analytics>
diff --git a/test/diagrams/scanned_easy/diagrams_302.dot b/test/diagrams/scanned_easy/diagrams_302.dot
new file mode 100644
index 0000000000000000000000000000000000000000..028d32dff8e3d9b82578ff6daabe0a68189b4b14
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_302.dot
@@ -0,0 +1,60 @@
+digraph {
+	rankdir=TB
+	N0 [label="Supply Chain Optimization" color="#E91E63" fillcolor="#F8BBD0" shape=hexagon style=filled]
+	N1 [label="Report Automation" color="#E91E63" fillcolor="#F8BBD0" shape=rect style=filled]
+	N2 [label="Self_Service BI Tools" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N3 [label="Embedded Analytics" color="#AABEC6" fillcolor="#E0E6E9" shape=parallelogram style=filled]
+	N4 [label="Performance Monitoring" color="#E91E63" fillcolor="#F8BBD0" shape=database style=filled]
+	N5 [label="Data Security in BI" color="#E91E63" fillcolor="#F8BBD0" shape=hexagon style=filled]
+	N6 [label="Query Optimization" color="#FF9800" fillcolor="#FFE0B2" shape=predefinedprocess style=filled]
+	N7 [label="BI Platform Administration" color="#FF9800" fillcolor="#FFE0B2" shape=action style=filled]
+	N8 [label="Data Mart Design" color="#E91E63" fillcolor="#F8BBD0" shape=rectangle style=filled]
+	N9 [label="Risk Assessment Reporting" color="#FF9800" fillcolor="#FFE0B2" shape=document style=filled]
+	S0 [label="" color="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FF9800" fillcolor="#FFE0B2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Executive Summary Reporting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Executive Summary Reporting"
+		nest0_0 [label="Market Trend Analysis" color="#FF9800" fillcolor="#FFE0B2" shape=parallelogram style=filled]
+		nest0_1 [label="Budget Performance Analysis" color="#AABEC6" fillcolor="#E0E6E9" shape=diamond style=filled]
+	}
+	subgraph cluster_Cloud BI Solutions {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cloud BI Solutions"
+		nest1_0 [label="Strategic Planning Support" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+		nest1_1 [label="Mobile BI Development" color="#FF9800" fillcolor="#FFE0B2" shape=diamond style=filled]
+		nest1_2 [label="Sales Forecasting" color="#E91E63" fillcolor="#F8BBD0" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N6 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#FF9800" penwidth=1.5 style=dashed label="trains" dir=forward]
+	N3 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#E91E63" penwidth=1.5 style=dashed label="controls" dir=forward]
+	N1 -> M0 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N3 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_302.txt b/test/diagrams/scanned_easy/diagrams_302.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7457f3b063f6db08713771c880a91c0aa40704d4
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_302.txt
@@ -0,0 +1,24 @@
+<BI Platform Administration, connectedTo, Data Mart Design>
+<BI Platform Administration, connectedTo, Strategic Planning Support>
+<Budget Performance Analysis, connectedTo, Query Optimization>
+<Data Mart Design, connectedTo, Market Trend Analysis>
+<Data Mart Design, connectedTo, Risk Assessment Reporting>
+<Data Security in BI, connectedTo, Query Optimization>
+<Embedded Analytics, connectedTo, BI Platform Administration>
+<Embedded Analytics, connectedTo, Performance Monitoring>
+<Embedded Analytics, connectedTo, Risk Assessment Reporting>
+<Market Trend Analysis, connectedTo, Budget Performance Analysis>
+<Mobile BI Development, connectedTo, Sales Forecasting>
+<Performance Monitoring, connectedTo, Data Mart Design>
+<Performance Monitoring, connectedTo, Data Security in BI>
+<Performance Monitoring, connectedTo, Query Optimization>
+<Query Optimization, connectedTo, BI Platform Administration>
+<Report Automation, connectedTo, Embedded Analytics>
+<Report Automation, connectedTo, Self_Service BI Tools>
+<Sales Forecasting, connectedTo, Performance Monitoring>
+<Self_Service BI Tools, connectedTo, Embedded Analytics>
+<Self_Service BI Tools, connectedTo, Risk Assessment Reporting>
+<Self_Service BI Tools, trains, Data Security in BI>
+<Strategic Planning Support, connectedTo, Mobile BI Development>
+<Supply Chain Optimization, connectedTo, Report Automation>
+<Supply Chain Optimization, controls, Embedded Analytics>
diff --git a/test/diagrams/scanned_easy/diagrams_303.dot b/test/diagrams/scanned_easy/diagrams_303.dot
new file mode 100644
index 0000000000000000000000000000000000000000..627406008c329d91acf51af18543d4caaab24cc3
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_303.dot
@@ -0,0 +1,85 @@
+digraph {
+	rankdir=TB
+	N0 [label="Customer Journey Mapping" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	N1 [label="Public Relations" color="#3F51B5" fillcolor="#C5CAE9" shape=predefinedprocess style=filled]
+	N2 [label="Experiential Marketing" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	N3 [label="Marketing Budget Allocation" color="#FFDA4E" fillcolor="#FFE88D" shape=database style=filled]
+	N4 [label="Marketing Analytics" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+	N5 [label="Marketing Automation" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	N6 [label="Social Media Marketing" color="#73C6BC" fillcolor="#D0EFEE" shape=multipledocuments style=filled]
+	N7 [label="Competitive Analysis" color="#FFDA4E" fillcolor="#FFE88D" shape=rectangle style=filled]
+	N8 [label="Search Engine Marketing" color="#FFDA4E" fillcolor="#FFE88D" shape=rectangle style=filled]
+	N9 [label="Campaign Performance Tracking" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N10 [label="Promotional Campaigns" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+	N11 [label="Video Marketing" color="#3F51B5" fillcolor="#C5CAE9" shape=database style=filled]
+	N12 [label="Telemarketing" color="#73C6BC" fillcolor="#D0EFEE" shape=document style=filled]
+	N13 [label="Loyalty Programs" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N14 [label="Email Marketing" color="#FFDA4E" fillcolor="#FFE88D" shape=database style=filled]
+	N15 [label="Affiliate Marketing" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	N16 [label="Customer Segmentation" color="#3F51B5" fillcolor="#C5CAE9" shape=vnode_shape style=filled]
+	N17 [label="Direct Mail Marketing" color="#3F51B5" fillcolor="#C5CAE9" shape=document style=filled]
+	N18 [label="Influencer Marketing" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N19 [label="Lead Generation" color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+	N20 [label="Event Marketing" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	S0 [label="" color="#73C6BC" fillcolor="#D0EFEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#73C6BC" fillcolor="#D0EFEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Market Research {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Market Research"
+		nest0_0 [label="Search Engine Optimization" color="#73C6BC" fillcolor="#D0EFEE" shape=rect style=filled]
+		nest0_1 [label="Brand Reputation Management" color="#3F51B5" fillcolor="#C5CAE9" shape=diamond style=filled]
+	}
+	subgraph cluster_Remarketing Campaigns {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Remarketing Campaigns"
+		nest1_0 [label="Content Marketing" color="#73C6BC" fillcolor="#D0EFEE" shape=multipledocuments style=filled]
+		nest1_1 [label="Personalization Strategies" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="distributes products" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="tele_sells" dir=forward]
+	N7 -> N8 [color="#FFDA4E" penwidth=1.5 style=solid label="optimizes conversions" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#FFDA4E" penwidth=1.5 style=solid label="runs SEM" dir=forward]
+	N14 -> N15 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#3F51B5" penwidth=1.5 style=dashed label="builds loyalty" dir=forward]
+	N16 -> N17 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N17 -> N18 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N18 -> N19 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N19 -> N20 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N14 [color="#3F51B5" penwidth=1.5 style=solid label="sends emails" dir=forward]
+	nest1_0 -> nest1_1 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N18 -> nest1_0 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N7 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N11 -> S0 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N18 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N17 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N20 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	S1 -> N19 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S1 -> N16 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N18 -> M0 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#FFDA4E" penwidth=1.5 style=dashed label="manages budgets" dir=forward]
+	M0 -> N20 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> M1 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M1 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	M1 -> N16 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_303.txt b/test/diagrams/scanned_easy/diagrams_303.txt
new file mode 100644
index 0000000000000000000000000000000000000000..984a34cf6eb9f935cf46e32aa173d22df31c9a99
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_303.txt
@@ -0,0 +1,39 @@
+<Affiliate Marketing, builds loyalty, Customer Segmentation>
+<Brand Reputation Management, sends emails, Email Marketing>
+<Campaign Performance Tracking, connectedTo, Customer Segmentation>
+<Campaign Performance Tracking, connectedTo, Promotional Campaigns>
+<Campaign Performance Tracking, connectedTo, Search Engine Optimization>
+<Competitive Analysis, optimizes conversions, Search Engine Marketing>
+<Content Marketing, connectedTo, Personalization Strategies>
+<Customer Journey Mapping, connectedTo, Public Relations>
+<Customer Segmentation, connectedTo, Direct Mail Marketing>
+<Direct Mail Marketing, connectedTo, Influencer Marketing>
+<Email Marketing, connectedTo, Affiliate Marketing>
+<Experiential Marketing, connectedTo, Customer Segmentation>
+<Experiential Marketing, connectedTo, Marketing Budget Allocation>
+<Experiential Marketing, manages budgets, Event Marketing>
+<Influencer Marketing, connectedTo, Content Marketing>
+<Influencer Marketing, connectedTo, Event Marketing>
+<Influencer Marketing, connectedTo, Lead Generation>
+<Lead Generation, connectedTo, Event Marketing>
+<Loyalty Programs, runs SEM, Email Marketing>
+<Marketing Analytics, connectedTo, Marketing Automation>
+<Marketing Automation, connectedTo, Customer Segmentation>
+<Marketing Automation, connectedTo, Social Media Marketing>
+<Marketing Budget Allocation, connectedTo, Marketing Analytics>
+<Personalization Strategies, connectedTo, Competitive Analysis>
+<Promotional Campaigns, connectedTo, Customer Segmentation>
+<Promotional Campaigns, connectedTo, Video Marketing>
+<Public Relations, distributes products, Experiential Marketing>
+<Search Engine Marketing, connectedTo, Campaign Performance Tracking>
+<Search Engine Optimization, connectedTo, Brand Reputation Management>
+<Social Media Marketing, connectedTo, Customer Segmentation>
+<Social Media Marketing, connectedTo, Event Marketing>
+<Social Media Marketing, connectedTo, Lead Generation>
+<Social Media Marketing, tele_sells, Competitive Analysis>
+<Telemarketing, connectedTo, Loyalty Programs>
+<Video Marketing, connectedTo, Direct Mail Marketing>
+<Video Marketing, connectedTo, Event Marketing>
+<Video Marketing, connectedTo, Influencer Marketing>
+<Video Marketing, connectedTo, Loyalty Programs>
+<Video Marketing, connectedTo, Telemarketing>
diff --git a/test/diagrams/scanned_easy/diagrams_304.dot b/test/diagrams/scanned_easy/diagrams_304.dot
new file mode 100644
index 0000000000000000000000000000000000000000..060077ce6e2b0b1b117d948d9b98eb40a1900311
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_304.dot
@@ -0,0 +1,70 @@
+digraph {
+	rankdir=TB
+	N0 [label="Radio Advertising" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N1 [label="Direct Response Campaigns" color="#FFF176" fillcolor="#FFFDE7" shape=diamond style=filled]
+	N2 [label="Audience Segmentation for Ads" color="#FFF176" fillcolor="#FFFDE7" shape=rect style=filled]
+	N3 [label="Retargeting Campaigns" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N4 [label="Budget Management" color="#FFDA4E" fillcolor="#FFE88D" shape=predefinedprocess style=filled]
+	N5 [label="Landing Page Optimization" color="#FFF176" fillcolor="#FFFDE7" shape=rect style=filled]
+	N6 [label="Customer Acquisition Cost Analysis" color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	N7 [label="Visual Design for Ads" color="#FFF176" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N8 [label="Native Advertising" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+	N9 [label="Programmatic Advertising" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N10 [label="Ad Placement Optimization" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N11 [label="Social Media Ads" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N12 [label="Ad Platform Management" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	N13 [label="Digital Advertising" color="#673AB7" fillcolor="#D1C4E9" shape=database style=filled]
+	N14 [label="A or B Testing for Ads" color="#673AB7" fillcolor="#D1C4E9" shape=database style=filled]
+	S0 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#673AB7" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#673AB7" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#673AB7" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Fraud Detection in Ads {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Fraud Detection in Ads"
+		nest0_0 [label="Campaign Planning" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+		nest0_1 [label="Demographic Targeting" color="#FFF176" fillcolor="#FFFDE7" shape=rect style=filled]
+	}
+	subgraph cluster_Competitor Ad Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Competitor Ad Analysis"
+		nest1_0 [label="Video Advertising" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+		nest1_1 [label="Print Advertising" color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N13 -> nest0_0 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest1_0 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N1 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S1 -> N3 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S1 -> N2 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N11 -> S2 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_305.txt b/test/diagrams/scanned_easy/diagrams_305.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fc45f3613be2aa1da3073375cbf782a5ce5f802a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_305.txt
@@ -0,0 +1,40 @@
+<Consensus Mechanism Development, implements algorithms, Supply Chain Traceability>
+<Consortium Blockchain Setup, traces provenance, Smart Contract Development>
+<Cross_Chain Bridges, connectedTo, Consensus Mechanism Development>
+<Cross_Chain Bridges, connectedTo, Decentralized Applications Development>
+<Cross_Chain Bridges, connectedTo, Gaming on Blockchain>
+<Cross_Chain Bridges, connectedTo, Private Blockchain Implementation>
+<Decentralized Applications Development, connectedTo, Identity Verification on Blockchain>
+<Decentralized Finance Protocols, connectedTo, Real Estate Tokenization>
+<Digital Identity Management, connectedTo, Consensus Mechanism Development>
+<Digital Identity Management, connectedTo, Cross_Chain Bridges>
+<Digital Identity Management, connectedTo, Gaming on Blockchain>
+<Digital Identity Management, connectedTo, Identity Verification on Blockchain>
+<Digital Identity Management, connectedTo, Oracles Integration>
+<Distributed Ledger Technology, connectedTo, Interoperability Solutions>
+<Financial Asset Tokenization, connectedTo, Mining Operations>
+<Financial Asset Tokenization, manages real estate, Healthcare Data Management>
+<Gaming on Blockchain, connectedTo, Consensus Mechanism Development>
+<Governance Models for Blockchains, connectedTo, Initial Coin Offerings>
+<Healthcare Data Management, connectedTo, Voting Systems on Blockchain>
+<Initial Coin Offerings, connectedTo, Security Token Offerings>
+<Interoperability Solutions, connectedTo, Cross_Chain Bridges>
+<Mining Operations, connectedTo, Consensus Mechanism Development>
+<Mining Operations, connectedTo, Regulatory Compliance for Blockchain>
+<Non_Fungible Token Creation, connectedTo, Financial Asset Tokenization>
+<Oracles Integration, connectedTo, Decentralized Applications Development>
+<Private Blockchain Implementation, connectedTo, Gaming on Blockchain>
+<Real Estate Tokenization, connectedTo, Gaming on Blockchain>
+<Real Estate Tokenization, connectedTo, Tokenomics Design>
+<Regulatory Compliance for Blockchain, connectedTo, Decentralized Finance Protocols>
+<Regulatory Compliance for Blockchain, connectedTo, Gaming on Blockchain>
+<Security Token Offerings, connectedTo, Smart Contract Development>
+<Smart Contract Development, connectedTo, Decentralized Finance Protocols>
+<Smart Contract Development, connectedTo, Financial Asset Tokenization>
+<Smart Contract Development, connectedTo, Mining Operations>
+<Smart Contract Development, connectedTo, Non_Fungible Token Creation>
+<Supply Chain Traceability, connectedTo, Oracles Integration>
+<Tokenomics Design, connectedTo, Digital Identity Management>
+<Tokenomics Design, connectedTo, Governance Models for Blockchains>
+<Tokenomics Design, distributes ledgers, Consensus Mechanism Development>
+<Voting Systems on Blockchain, connectedTo, Distributed Ledger Technology>
diff --git a/test/diagrams/scanned_easy/diagrams_306.txt b/test/diagrams/scanned_easy/diagrams_306.txt
new file mode 100644
index 0000000000000000000000000000000000000000..96560fb6985361d10421c3e61e20e6345cc41c3b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_306.txt
@@ -0,0 +1,29 @@
+<Blockchain Integration, connectedTo, Web3 Integration>
+<Cold Storage Solutions, lists assets, Yield Farming>
+<Community Building, connectedTo, Cross_chain Swaps>
+<Community Building, connectedTo, GameFi Development>
+<Cross_chain Swaps, facilitates trades, Staking>
+<KYC or AML Procedures, connectedTo, Transaction Processing>
+<KYC or AML Procedures, connectedTo, Venture Capital Funding>
+<KYC or AML Procedures, connectedTo, Wallet Development>
+<Lending and Borrowing Protocols, connectedTo, Blockchain Integration>
+<Portfolio Management, connectedTo, Lending and Borrowing Protocols>
+<Smart Contract Auditing, connectedTo, Community Building>
+<Smart Contract Auditing, connectedTo, KYC or AML Procedures>
+<Smart Contract Auditing, connectedTo, Venture Capital Funding>
+<Smart Contract Auditing, connectedTo, Web3 Integration>
+<Smart Contract Auditing, connectedTo, Yield Farming>
+<Staking, secures funds, Cold Storage Solutions>
+<Transaction Processing, connectedTo, Venture Capital Funding>
+<Venture Capital Funding, connectedTo, Community Building>
+<Venture Capital Funding, connectedTo, Portfolio Management>
+<Wallet Development, connectedTo, GameFi Development>
+<Wallet Development, connectedTo, Transaction Processing>
+<Wallet Development, connectedTo, Venture Capital Funding>
+<Wallet Development, secures private keys, Community Building>
+<Web3 Integration, connectedTo, Transaction Processing>
+<Web3 Integration, connectedTo, Venture Capital Funding>
+<Web3 Integration, generates yield, Yield Farming>
+<Yield Farming, connectedTo, KYC or AML Procedures>
+<Yield Farming, connectedTo, Transaction Processing>
+<Yield Farming, connectedTo, Venture Capital Funding>
diff --git a/test/diagrams/scanned_easy/diagrams_307.dot b/test/diagrams/scanned_easy/diagrams_307.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3e9b4ebca108649f3c0e4cbc527aaf9989cab449
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_307.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=LR
+	N0 [label="Payment Processing" color="#CFCFCF" fillcolor="#F6F6F6" shape=document style=filled]
+	N1 [label="Investor Relations" color="#73C6BC" fillcolor="#D0EFEE" shape=predefinedprocess style=filled]
+	N2 [label="Campaign Creation" color="#CFCFCF" fillcolor="#F6F6F6" shape=multipledocuments style=filled]
+	N3 [label="Email List Building" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N4 [label="Investor Verification" color="#64B5F6" fillcolor="#E3F2FD" shape=database style=filled]
+	N5 [label="Pitch Deck Preparation" color="#CFCFCF" fillcolor="#F6F6F6" shape=inputoutput style=filled]
+	N6 [label="Platform Fee Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=diamond style=filled]
+	N7 [label="Project Vetting" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+	N8 [label="Community Building" color="#64B5F6" fillcolor="#E3F2FD" shape=document style=filled]
+	N9 [label="Product Development Lifecycle" color="#CFCFCF" fillcolor="#F6F6F6" shape=preparation style=filled]
+	N10 [label="Donation_Based Crowdfunding" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N11 [label="Intellectual Property Protection" color="#CFCFCF" fillcolor="#F6F6F6" shape=box style=filled]
+	N12 [label="International Crowdfunding" color="#64B5F6" fillcolor="#E3F2FD" shape=predefinedprocess style=filled]
+	N13 [label="Shareholder Management" color="#64B5F6" fillcolor="#E3F2FD" shape=multipledocuments style=filled]
+	S0 [label="" color="#64B5F6" fillcolor="#E3F2FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#73C6BC" fillcolor="#D0EFEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#64B5F6" fillcolor="#E3F2FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#CFCFCF" fillcolor="#F6F6F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#CFCFCF" fillcolor="#F6F6F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Post_Campaign Updates {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Post_Campaign Updates"
+		nest0_0 [label="Legal Compliance" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+		nest0_1 [label="Logistics for Rewards" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+		nest0_2 [label="Post_Campaign Reporting" color="#64B5F6" fillcolor="#E3F2FD" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Tax Implications of Crowdfunding {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Tax Implications of Crowdfunding"
+		nest1_0 [label="Customer Support for Backers" color="#73C6BC" fillcolor="#D0EFEE" shape=action style=filled]
+		nest1_1 [label="Platform Selection" color="#64B5F6" fillcolor="#E3F2FD" shape=parallelogram style=filled]
+		nest1_2 [label="Reward_Based Crowdfunding" color="#64B5F6" fillcolor="#E3F2FD" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#CFCFCF" penwidth=1.5 style=solid label="generates reports" dir=forward]
+	N7 -> N8 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#CFCFCF" penwidth=1.5 style=solid label="develops products" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#64B5F6" penwidth=1.5 style=solid label="markets projects" dir=forward]
+	nest0_1 -> nest0_2 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N6 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N7 -> M1 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	M1 -> N10 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#CFCFCF" penwidth=1.5 style=dashed label="analyzes data" dir=forward]
+	N3 -> M2 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M2 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_309.dot b/test/diagrams/scanned_easy/diagrams_309.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b15a3c7039efe62e6f894d691b74eabc0e818eaa
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_309.dot
@@ -0,0 +1,71 @@
+digraph {
+	rankdir=RL
+	N0 [label="Edge API Management" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N1 [label="Resource Management at Edge" color="#FF8A65" fillcolor="#FBE9E7" shape=preparation style=filled]
+	N2 [label="Network Optimization for Edge" color="#6EB76D" fillcolor="#E9F7E8" shape=document style=filled]
+	N3 [label="Containerization at Edge" color="#C0CA33" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N4 [label="Compliance and Governance at Edge" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N5 [label="Smart City Edge Solutions" color="#6EB76D" fillcolor="#E9F7E8" shape=multipledocuments style=filled]
+	N6 [label="Fault Tolerance at Edge" color="#C0CA33" fillcolor="#F9FBE7" shape=rect style=filled]
+	N7 [label="Power Consumption Optimization" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N8 [label="Edge_to_Cloud Data Transfer Optimization" color="#C0CA33" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N9 [label="Edge Computing Hardware Selection" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N10 [label="Data Synchronization between Edge and Cloud" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	S0 [label="" color="#FF8A65" fillcolor="#FBE9E7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FF8A65" fillcolor="#FBE9E7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Connectivity to Cloud {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Connectivity to Cloud"
+		nest0_0 [label="Edge Gateway Management" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+		nest0_1 [label="Edge Application Development" color="#FF8A65" fillcolor="#FBE9E7" shape=database style=filled]
+		nest0_2 [label="Offline Functionality" color="#FF8A65" fillcolor="#FBE9E7" shape=document style=filled]
+	}
+	subgraph cluster_Event_Driven Architectures at Edge {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Event_Driven Architectures at Edge"
+		nest1_0 [label="Microservices on Edge Devices" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+		nest1_1 [label="Edge Network Topology Design" color="#C0CA33" fillcolor="#F9FBE7" shape=document style=filled]
+		nest1_2 [label="Telecom Edge Computing" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+		nest1_3 [label="Edge Data Processing" color="#C0CA33" fillcolor="#F9FBE7" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N4 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest1_0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N9 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N5 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_31.dot b/test/diagrams/scanned_easy/diagrams_31.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ea2ce89371df559821ad04b593b784f0ea8b27ce
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_31.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=LR
+	N0 [label="Coaching" color="#CB9BE1" fillcolor="#F2E6F5" shape=parallelogram style=filled]
+	N1 [label="Scorekeeping" color="#FFA726" fillcolor="#FFF3E0" shape=diamond style=filled]
+	N2 [label="Athlete Performance Tracking" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+	N3 [label="Media Rights Negotiation" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N4 [label="Sports Marketing" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N5 [label="Youth Development Programs" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N6 [label="Esports Event Management" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+	N7 [label="Rule Enforcement" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+	N8 [label="Event Broadcasting" color="#FFA726" fillcolor="#FFF3E0" shape=inputoutput style=filled]
+	N9 [label="Game Strategy" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N10 [label="Player Recruitment" color="#FFA726" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="governs" dir=forward]
+	N1 -> N2 [color="#66BB6A" penwidth=1.5 style=solid label="judges" dir=forward]
+	N2 -> N3 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#66BB6A" penwidth=1.5 style=solid label="builds" dir=forward]
+	N4 -> N5 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="advises" dir=forward]
+	N7 -> N8 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#CB9BE1" penwidth=1.5 style=solid label="scores" dir=forward]
+	N10 -> N0 [color="#66BB6A" penwidth=1.5 style=solid label="manages" dir=forward]
+	N10 -> N7 [color="#CB9BE1" penwidth=1.5 style=solid label="records" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_31.txt b/test/diagrams/scanned_easy/diagrams_31.txt
new file mode 100644
index 0000000000000000000000000000000000000000..53ec617f98085f03289d81b3726c74b697ae2f06
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_31.txt
@@ -0,0 +1,12 @@
+<Athlete Performance Tracking, connectedTo, Media Rights Negotiation>
+<Coaching, governs, Scorekeeping>
+<Esports Event Management, advises, Rule Enforcement>
+<Event Broadcasting, connectedTo, Game Strategy>
+<Game Strategy, scores, Player Recruitment>
+<Media Rights Negotiation, builds, Sports Marketing>
+<Player Recruitment, manages, Coaching>
+<Player Recruitment, records, Rule Enforcement>
+<Rule Enforcement, connectedTo, Event Broadcasting>
+<Scorekeeping, judges, Athlete Performance Tracking>
+<Sports Marketing, connectedTo, Youth Development Programs>
+<Youth Development Programs, connectedTo, Esports Event Management>
diff --git a/test/diagrams/scanned_easy/diagrams_310.txt b/test/diagrams/scanned_easy/diagrams_310.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c8d21f52d8eb22bd345b501532fc56f21f7ee436
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_310.txt
@@ -0,0 +1,26 @@
+<API Management in Cloud, ensures compliance, DevOps on Cloud>
+<CI or CD Pipelines in Cloud, connectedTo, Container Orchestration>
+<Cloud Automation, connectedTo, Cost Optimization in Cloud>
+<Cloud Automation, uses marketplaces, CI or CD Pipelines in Cloud>
+<Cloud Marketplace Integration, connectedTo, CI or CD Pipelines in Cloud>
+<Cloud Marketplace Integration, connectedTo, Container Orchestration>
+<Cloud Marketplace Integration, connectedTo, Identity and Access Management>
+<Cloud Migration Strategy, connectedTo, Cloud_based VPN Setup>
+<Cloud Native Application Development, connectedTo, Hybrid Cloud Deployment>
+<Cloud_based VPN Setup, connectedTo, Data Storage in Cloud>
+<Compliance in Cloud, audits usage, Cloud Migration Strategy>
+<Container Orchestration, connectedTo, Private Cloud Management>
+<Cost Optimization in Cloud, offers MLaaS, Cloud Marketplace Integration>
+<Cost Optimization in Cloud, processes big data, API Management in Cloud>
+<Data Storage in Cloud, connectedTo, CI or CD Pipelines in Cloud>
+<DevOps on Cloud, connectedTo, Software as a Service>
+<Disaster Recovery in Cloud, connectedTo, Hybrid Cloud Deployment>
+<Disaster Recovery in Cloud, connectedTo, Public Cloud Management>
+<Disaster Recovery in Cloud, manages load balancing, Cloud Native Application Development>
+<Hybrid Cloud Deployment, connectedTo, Public Cloud Management>
+<Identity and Access Management, connectedTo, CI or CD Pipelines in Cloud>
+<Private Cloud Management, connectedTo, CI or CD Pipelines in Cloud>
+<Private Cloud Management, connectedTo, Disaster Recovery in Cloud>
+<Public Cloud Management, connectedTo, Cloud Automation>
+<Public Cloud Management, connectedTo, Compliance in Cloud>
+<Software as a Service, connectedTo, CI or CD Pipelines in Cloud>
diff --git a/test/diagrams/scanned_easy/diagrams_312.dot b/test/diagrams/scanned_easy/diagrams_312.dot
new file mode 100644
index 0000000000000000000000000000000000000000..04f68ec61bb7150d69dcbbd88be0f55f4c6d2e8f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_312.dot
@@ -0,0 +1,61 @@
+digraph {
+	rankdir=RL
+	N0 [label="Containerization" color="#73C6BC" fillcolor="#D0EFEE" shape=database style=filled]
+	N1 [label="Container Orchestration" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N2 [label="Cross_Functional Team Collaboration" color="#A188DB" fillcolor="#DED7F0" shape=predefinedprocess style=filled]
+	N3 [label="Automated Rollbacks" color="#A188DB" fillcolor="#DED7F0" shape=diamond style=filled]
+	N4 [label="GitOps" color="#FFEB3B" fillcolor="#FFF9C4" shape=predefinedprocess style=filled]
+	N5 [label="Observability Implementation" color="#A188DB" fillcolor="#DED7F0" shape=ellipse style=filled]
+	N6 [label="Feedback Loops" color="#73C6BC" fillcolor="#D0EFEE" shape=inputoutput style=filled]
+	N7 [label="Canary Releases" color="#73C6BC" fillcolor="#D0EFEE" shape=predefinedprocess style=filled]
+	N8 [label="Continuous Delivery" color="#A188DB" fillcolor="#DED7F0" shape=rectangle style=filled]
+	N9 [label="Feature Flags" color="#FFEB3B" fillcolor="#FFF9C4" shape=vnode_shape style=filled]
+	S0 [label="" color="#A188DB" fillcolor="#DED7F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFEB3B" fillcolor="#FFF9C4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#A188DB" fillcolor="#DED7F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Chaos Engineering {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Chaos Engineering"
+		nest0_0 [label="Monitoring and Logging" color="#A188DB" fillcolor="#DED7F0" shape=diamond style=filled]
+		nest0_1 [label="Post_Mortem Analysis" color="#73C6BC" fillcolor="#D0EFEE" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Version Control {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Version Control"
+		nest1_0 [label="Collaboration Tools" color="#A188DB" fillcolor="#DED7F0" shape=diamond style=filled]
+		nest1_1 [label="Automated Deployment" color="#FFEB3B" fillcolor="#FFF9C4" shape=multipledocuments style=filled]
+		nest1_2 [label="ChatOps" color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+		nest1_3 [label="Immutable Infrastructure" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+	}
+	N0 -> N1 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFEB3B" penwidth=1.5 style=dashed label="implements blue_green" dir=forward]
+	N6 -> N7 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N9 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid label="automates operations" dir=forward]
+	N2 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N2 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N5 -> S1 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N1 -> S2 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N3 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	S2 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_313.dot b/test/diagrams/scanned_easy/diagrams_313.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9ac33defde5fa63b642997b340af12a4077d707b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_313.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=LR
+	N0 [label="Code Review" color="#C2B2F0" fillcolor="#EFE6FF" shape=action style=filled]
+	N1 [label="Database Design" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N2 [label="Algorithm Design" color="#FF8A65" fillcolor="#FBE9E7" shape=multipledocuments style=filled]
+	N3 [label="Microservices Architecture" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N4 [label="Maintenance" color="#C2B2F0" fillcolor="#EFE6FF" shape=ellipse style=filled]
+	N5 [label="Requirements Gathering" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N6 [label="Continuous Integration" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N7 [label="Refactoring" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N8 [label="Coding" color="#C2B2F0" fillcolor="#EFE6FF" shape=box style=filled]
+	N9 [label="Continuous Delivery" color="#C2B2F0" fillcolor="#EFE6FF" shape=preparation style=filled]
+	N10 [label="System Design" color="#FF8A65" fillcolor="#FBE9E7" shape=diamond style=filled]
+	N11 [label="Technical Debt Management" color="#C2B2F0" fillcolor="#EFE6FF" shape=inputoutput style=filled]
+	N12 [label="Web Application Development" color="#FF8A65" fillcolor="#FBE9E7" shape=inputoutput style=filled]
+	N13 [label="User Interface Design" color="#C2B2F0" fillcolor="#EFE6FF" shape=predefinedprocess style=filled]
+	N14 [label="Frontend Development" color="#C2B2F0" fillcolor="#EFE6FF" shape=preparation style=filled]
+	S1 [label="" color="#FF8A65" fillcolor="#FBE9E7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#C2B2F0" fillcolor="#EFE6FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Version Control {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Version Control"
+		nest0_0 [label="Compiler Design" color="#C2B2F0" fillcolor="#EFE6FF" shape=document style=filled]
+		nest0_1 [label="Backend Development" color="#C2B2F0" fillcolor="#EFE6FF" shape=action style=filled]
+		nest0_2 [label="Scalability Design" color="#EAEFA5" fillcolor="#FDFCEB" shape=preparation style=filled]
+		nest0_3 [label="Agile Methodologies" color="#C2B2F0" fillcolor="#EFE6FF" shape=diamond style=filled]
+	}
+	subgraph cluster_Mobile Application Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mobile Application Development"
+		nest1_0 [label="Containerization" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+		nest1_1 [label="Integration Testing" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+		nest1_2 [label="Embedded Systems Development" color="#FF8A65" fillcolor="#FBE9E7" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FF8A65" penwidth=1.5 style=solid label="creates mobile apps" dir=forward]
+	N9 -> N10 [color="#C2B2F0" penwidth=1.5 style=solid label="uses containers" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> nest0_0 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N3 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N11 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N11 -> S1 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N6 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N11 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#EAEFA5" penwidth=1.5 style=dashed label="conducts code reviews" dir=forward]
+	S2 -> N10 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N10 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_314.dot b/test/diagrams/scanned_easy/diagrams_314.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bc302294259b4052076ca52af2c72d93b1eb4968
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_314.dot
@@ -0,0 +1,89 @@
+digraph {
+	rankdir=RL
+	N0 [label="Manufacturing Process Planning" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+	N1 [label="Optical Module Design" color="#A2D0FF" fillcolor="#E8F0FF" shape=inputoutput style=filled]
+	N2 [label="Material Selection" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	N3 [label="Assembly Line Optimization" color="#4285F4" fillcolor="#D0E0F8" shape=database style=filled]
+	N4 [label="Test Fixture Design" color="#A2D0FF" fillcolor="#E8F0FF" shape=action style=filled]
+	N5 [label="Documentation" color="#E91E63" fillcolor="#F8BBD0" shape=document style=filled]
+	N6 [label="Cable Management" color="#4285F4" fillcolor="#D0E0F8" shape=vnode_shape style=filled]
+	N7 [label="Intellectual Property Protection" color="#A2D0FF" fillcolor="#E8F0FF" shape=hexagon style=filled]
+	N8 [label="Troubleshooting and Debugging" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	N9 [label="Power Management Design" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	N10 [label="Environmental Testing" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	N11 [label="RF Circuit Design" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N12 [label="Firmware Development" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N13 [label="Low_Power Design" color="#E91E63" fillcolor="#F8BBD0" shape=predefinedprocess style=filled]
+	N14 [label="Enclosure Design" color="#A2D0FF" fillcolor="#E8F0FF" shape=document style=filled]
+	N15 [label="Quality Control" color="#A2D0FF" fillcolor="#E8F0FF" shape=predefinedprocess style=filled]
+	N16 [label="Failure Analysis" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	S0 [label="" color="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Schematic Capture {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Schematic Capture"
+		nest0_0 [label="Signal Integrity Analysis" color="#4285F4" fillcolor="#D0E0F8" shape=rect style=filled]
+		nest0_1 [label="PCB Layout" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+		nest0_2 [label="Prototyping" color="#A2D0FF" fillcolor="#E8F0FF" shape=hexagon style=filled]
+		nest0_3 [label="Testing and Validation" color="#4285F4" fillcolor="#D0E0F8" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Mixed_Signal Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mixed_Signal Design"
+		nest1_0 [label="Actuator Control" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+		nest1_1 [label="Thermal Management" color="#E91E63" fillcolor="#F8BBD0" shape=parallelogram style=filled]
+		nest1_2 [label="Microcontroller Programming" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+		nest1_3 [label="Reverse Engineering" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="ensures reliability" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#4285F4" penwidth=1.5 style=dashed label="analyzes failures" dir=forward]
+	nest0_0 -> nest0_1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#A2D0FF" penwidth=1.5 style=solid label="designs enclosures" dir=forward]
+	nest0_2 -> nest0_3 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N5 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest1_0 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N9 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N13 -> S0 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N16 [color="#000000" penwidth=1.5 style=dashed label="supervises assembly" dir=forward]
+	S0 -> N15 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	S1 -> N2 [color="#4285F4" penwidth=1.5 style=dashed label="manages EMC" dir=forward]
+	S1 -> N12 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N10 -> M0 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	M0 -> N12 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed label="performs reverse engineering" dir=forward]
+	N3 -> M1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	M1 -> N5 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N9 -> M2 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M2 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N8 -> M2 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	M2 -> N15 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_314.txt b/test/diagrams/scanned_easy/diagrams_314.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dd782237e3a5cbb18a06716bc77cada604730cfa
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_314.txt
@@ -0,0 +1,41 @@
+<Actuator Control, connectedTo, Thermal Management>
+<Assembly Line Optimization, connectedTo, Documentation>
+<Assembly Line Optimization, connectedTo, Test Fixture Design>
+<Cable Management, connectedTo, Intellectual Property Protection>
+<Cable Management, connectedTo, Quality Control>
+<Documentation, connectedTo, Cable Management>
+<Enclosure Design, connectedTo, Quality Control>
+<Environmental Testing, connectedTo, Firmware Development>
+<Environmental Testing, connectedTo, RF Circuit Design>
+<Firmware Development, connectedTo, Low_Power Design>
+<Intellectual Property Protection, connectedTo, Troubleshooting and Debugging>
+<Low_Power Design, connectedTo, Enclosure Design>
+<Low_Power Design, connectedTo, Quality Control>
+<Low_Power Design, supervises assembly, Failure Analysis>
+<Manufacturing Process Planning, connectedTo, Documentation>
+<Manufacturing Process Planning, connectedTo, Enclosure Design>
+<Manufacturing Process Planning, connectedTo, Firmware Development>
+<Manufacturing Process Planning, connectedTo, Optical Module Design>
+<Manufacturing Process Planning, connectedTo, RF Circuit Design>
+<Manufacturing Process Planning, manages EMC, Material Selection>
+<Material Selection, connectedTo, Assembly Line Optimization>
+<Material Selection, connectedTo, Documentation>
+<Material Selection, connectedTo, Signal Integrity Analysis>
+<Microcontroller Programming, connectedTo, Reverse Engineering>
+<Optical Module Design, connectedTo, Material Selection>
+<Optical Module Design, performs reverse engineering, Documentation>
+<PCB Layout, designs enclosures, Prototyping>
+<Power Management Design, connectedTo, Quality Control>
+<Power Management Design, ensures reliability, Environmental Testing>
+<Prototyping, connectedTo, Testing and Validation>
+<Quality Control, analyzes failures, Failure Analysis>
+<RF Circuit Design, connectedTo, Firmware Development>
+<Reverse Engineering, connectedTo, Power Management Design>
+<Signal Integrity Analysis, connectedTo, PCB Layout>
+<Test Fixture Design, connectedTo, Actuator Control>
+<Test Fixture Design, connectedTo, Documentation>
+<Test Fixture Design, connectedTo, Firmware Development>
+<Testing and Validation, connectedTo, Documentation>
+<Thermal Management, connectedTo, Microcontroller Programming>
+<Troubleshooting and Debugging, connectedTo, Power Management Design>
+<Troubleshooting and Debugging, connectedTo, Quality Control>
diff --git a/test/diagrams/scanned_easy/diagrams_316.txt b/test/diagrams/scanned_easy/diagrams_316.txt
new file mode 100644
index 0000000000000000000000000000000000000000..94eefe3666ab72fc92262cbac0ef8735e1989ace
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_316.txt
@@ -0,0 +1,36 @@
+<Audience Engagement, connectedTo, Direct Messaging Strategy>
+<Audience Engagement, connectedTo, Personal Branding on Social Media>
+<Community Management, connectedTo, Audience Engagement>
+<Community Management, connectedTo, Customer Service on Social Media>
+<Content Creation, connectedTo, Reach and Impressions Tracking>
+<Content Moderation, connectedTo, Audience Engagement>
+<Content Moderation, connectedTo, Ethical Use of Social Media>
+<Content Moderation, connectedTo, Reach and Impressions Tracking>
+<Content Moderation, connectedTo, Trend Monitoring>
+<Content Moderation, connectedTo, User_Generated Content Curation>
+<Content Strategy, connectedTo, Ethical Use of Social Media>
+<Crisis Communication Plan, connectedTo, Content Moderation>
+<Crisis Communication Plan, connectedTo, Social Selling>
+<Customer Service on Social Media, connectedTo, Follower Growth Monitoring>
+<Customer Service on Social Media, partOf, Customer Service on Social Media>
+<Direct Messaging Strategy, connectedTo, Social Selling>
+<Ethical Use of Social Media, connectedTo, Community Management>
+<Follower Growth Monitoring, connectedTo, Reputation Management>
+<Follower Growth Monitoring, partOf, Follower Growth Monitoring>
+<Group Management, connectedTo, Reach and Impressions Tracking>
+<Influencer Collaboration, develops strategies, Trend Monitoring>
+<Live Streaming on Social Media, connectedTo, Social Media Audits>
+<Personal Branding on Social Media, connectedTo, Social Listening>
+<Platform Algorithm Understanding, connectedTo, Live Streaming on Social Media>
+<Platform Selection, connectedTo, Content Creation>
+<Reach and Impressions Tracking, connectedTo, Content Strategy>
+<Reach and Impressions Tracking, connectedTo, Ethical Use of Social Media>
+<Reach and Impressions Tracking, connectedTo, Social Selling>
+<Reputation Management, connectedTo, Audience Engagement>
+<Reputation Management, partOf, Reputation Management>
+<Social Listening, connectedTo, Platform Selection>
+<Social Media Audits, connectedTo, Crisis Communication Plan>
+<Social Media Audits, connectedTo, Ethical Use of Social Media>
+<Trend Monitoring, connectedTo, Ethical Use of Social Media>
+<Trend Monitoring, connectedTo, Group Management>
+<User_Generated Content Curation, connectedTo, Influencer Collaboration>
diff --git a/test/diagrams/scanned_easy/diagrams_317.dot b/test/diagrams/scanned_easy/diagrams_317.dot
new file mode 100644
index 0000000000000000000000000000000000000000..702a941c6908c4d24d7554db023bfa17aa0a576a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_317.dot
@@ -0,0 +1,71 @@
+digraph {
+	rankdir=BT
+	N0 [label="On_Page SEO" color="#9575CD" fillcolor="#EDE7F6" shape=preparation style=filled]
+	N1 [label="Search Engine Marketing Strategy" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N2 [label="User Intent Understanding" color="#FFB2A5" fillcolor="#FFDCD6" shape=diamond style=filled]
+	N3 [label="Personalized Search Results" color="#FFB2A5" fillcolor="#FFDCD6" shape=document style=filled]
+	N4 [label="Search Engine Optimization" color="#9575CD" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+	N5 [label="Academic Search" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N6 [label="Indexing Content" color="#7E57C2" fillcolor="#D1C4E9" shape=rect style=filled]
+	N7 [label="News Search" color="#FFB2A5" fillcolor="#FFDCD6" shape=document style=filled]
+	N8 [label="Image Search" color="#9575CD" fillcolor="#EDE7F6" shape=document style=filled]
+	N9 [label="Algorithm Updates Monitoring" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N10 [label="Technical SEO" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+	N11 [label="Video Search" color="#7E57C2" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N12 [label="Competitor Keyword Analysis" color="#9575CD" fillcolor="#EDE7F6" shape=document style=filled]
+	S1 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#9575CD" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#9575CD" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Schema Markup Implementation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Schema Markup Implementation"
+		nest0_0 [label="Local SEO" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+		nest0_1 [label="Google My Business Management" color="#9575CD" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+		nest0_2 [label="Semantic Search" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+		nest0_3 [label="Core Web Vitals Optimization" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	}
+	subgraph cluster_Content Quality Assessment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Content Quality Assessment"
+		nest1_0 [label="Crawling Websites" color="#9575CD" fillcolor="#EDE7F6" shape=parallelogram style=filled]
+		nest1_1 [label="Rank Tracking" color="#9575CD" fillcolor="#EDE7F6" shape=rectangle style=filled]
+		nest1_2 [label="Site Architecture Optimization" color="#7E57C2" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+		nest1_3 [label="Knowledge Graph Integration" color="#9575CD" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest1_0 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N9 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S2 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N6 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#7E57C2" penwidth=1.5 style=solid label="processes queries" dir=forward]
+	N0 -> M0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	M0 -> N3 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_317.txt b/test/diagrams/scanned_easy/diagrams_317.txt
new file mode 100644
index 0000000000000000000000000000000000000000..aa91e11043305c9b1ca8f4358b4551bc575890ca
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_317.txt
@@ -0,0 +1,31 @@
+<Academic Search, connectedTo, Indexing Content>
+<Algorithm Updates Monitoring, connectedTo, Technical SEO>
+<Core Web Vitals Optimization, connectedTo, Algorithm Updates Monitoring>
+<Crawling Websites, connectedTo, Rank Tracking>
+<Google My Business Management, connectedTo, Semantic Search>
+<Image Search, connectedTo, Algorithm Updates Monitoring>
+<Indexing Content, connectedTo, News Search>
+<Knowledge Graph Integration, connectedTo, Algorithm Updates Monitoring>
+<Local SEO, connectedTo, Google My Business Management>
+<News Search, connectedTo, Crawling Websites>
+<News Search, connectedTo, Image Search>
+<On_Page SEO, connectedTo, Personalized Search Results>
+<On_Page SEO, connectedTo, Search Engine Marketing Strategy>
+<Personalized Search Results, connectedTo, Indexing Content>
+<Personalized Search Results, connectedTo, Search Engine Optimization>
+<Personalized Search Results, connectedTo, Technical SEO>
+<Personalized Search Results, connectedTo, Video Search>
+<Personalized Search Results, processes queries, Algorithm Updates Monitoring>
+<Rank Tracking, connectedTo, Site Architecture Optimization>
+<Search Engine Marketing Strategy, connectedTo, Algorithm Updates Monitoring>
+<Search Engine Marketing Strategy, connectedTo, Local SEO>
+<Search Engine Marketing Strategy, connectedTo, Personalized Search Results>
+<Search Engine Marketing Strategy, connectedTo, Search Engine Optimization>
+<Search Engine Marketing Strategy, connectedTo, User Intent Understanding>
+<Search Engine Marketing Strategy, connectedTo, Video Search>
+<Search Engine Optimization, connectedTo, Academic Search>
+<Semantic Search, connectedTo, Core Web Vitals Optimization>
+<Site Architecture Optimization, connectedTo, Knowledge Graph Integration>
+<Technical SEO, connectedTo, Video Search>
+<User Intent Understanding, connectedTo, Personalized Search Results>
+<Video Search, connectedTo, Competitor Keyword Analysis>
diff --git a/test/diagrams/scanned_easy/diagrams_318.dot b/test/diagrams/scanned_easy/diagrams_318.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1f1950cd3e8424958e04de144fa057798a0da608
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_318.dot
@@ -0,0 +1,69 @@
+digraph {
+	rankdir=BT
+	N0 [label="Single Sign_On" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N1 [label="User Registration" color="#FFB2A5" fillcolor="#FFDCD6" shape=rectangle style=filled]
+	N2 [label="Attribute Management" color="#61CAC3" fillcolor="#C2E8E6" shape=predefinedprocess style=filled]
+	N3 [label="API Security for Identity" color="#FFF176" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N4 [label="Authorization" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+	N5 [label="Access Governance" color="#61CAC3" fillcolor="#C2E8E6" shape=multipledocuments style=filled]
+	N6 [label="Portable Identities" color="#61CAC3" fillcolor="#C2E8E6" shape=rectangle style=filled]
+	N7 [label="Identity as a Service" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N8 [label="Credential Management" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+	N9 [label="Compliance with Data Protection Regulations" color="#FFF176" fillcolor="#FFFDE7" shape=document style=filled]
+	N10 [label="Federated Identity Management" color="#FFF176" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N11 [label="Data Minimization Principles" color="#61CAC3" fillcolor="#C2E8E6" shape=inputoutput style=filled]
+	N12 [label="Identity Proofing" color="#FFB2A5" fillcolor="#FFDCD6" shape=predefinedprocess style=filled]
+	S1 [label="" color="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#61CAC3" fillcolor="#C2E8E6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFF176" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_KYC Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="KYC Integration"
+		nest0_0 [label="Customer Identity and Access Management" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+		nest0_1 [label="Social Login Integration" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+		nest0_2 [label="Data Encryption for Identity" color="#61CAC3" fillcolor="#C2E8E6" shape=multipledocuments style=filled]
+		nest0_3 [label="Digital Signatures" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Privacy Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Privacy Management"
+		nest1_0 [label="Digital Certificates" color="#61CAC3" fillcolor="#C2E8E6" shape=rect style=filled]
+		nest1_1 [label="Biometric Authentication" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+	}
+	N0 -> N1 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFB2A5" penwidth=1.5 style=dashed label="federates identities" dir=forward]
+	nest0_1 -> nest0_2 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N7 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest1_0 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> S1 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N7 -> S2 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N11 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=dashed label="performs KYCs" dir=forward]
+	M0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N9 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_319.dot b/test/diagrams/scanned_easy/diagrams_319.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e6211585d19dc64c99ec6cb876532a1faf1ca7d9
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_319.dot
@@ -0,0 +1,83 @@
+digraph {
+	rankdir=TB
+	N0 [label="Certification Issuance" color="#C0CA33" fillcolor="#F9FBE7" shape=rect style=filled]
+	N1 [label="Enrollment and Retention Strategies" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N2 [label="Curriculum Development" color="#C0CA33" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N3 [label="AI in Online Education" color="#388E3C" fillcolor="#F1F8E9" shape=hexagon style=filled]
+	N4 [label="Student Engagement Strategies" color="#388E3C" fillcolor="#F1F8E9" shape=rectangle style=filled]
+	N5 [label="Learning Management System Administration" color="#388E3C" fillcolor="#F1F8E9" shape=rectangle style=filled]
+	N6 [label="Adaptive Learning Technologies" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N7 [label="Micro_credential Programs" color="#C0CA33" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N8 [label="Student Progress Tracking" color="#C0CA33" fillcolor="#F9FBE7" shape=rect style=filled]
+	N9 [label="Peer_to_Peer Learning" color="#C0CA33" fillcolor="#F9FBE7" shape=database style=filled]
+	N10 [label="Digital Badges" color="#7E57C2" fillcolor="#EDE7F6" shape=diamond style=filled]
+	N11 [label="Interactive Learning Activities" color="#C0CA33" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N12 [label="Gamification in Education" color="#C0CA33" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N13 [label="Test Preparation Courses" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N14 [label="Asynchronous Learning" color="#7E57C2" fillcolor="#EDE7F6" shape=rect style=filled]
+	N15 [label="Synchronous Learning" color="#7E57C2" fillcolor="#EDE7F6" shape=multipledocuments style=filled]
+	N16 [label="Feedback and Grading" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	S0 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#7E57C2" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#7E57C2" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Accreditation Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Accreditation Management"
+		nest0_0 [label="Virtual Field Trips" color="#388E3C" fillcolor="#F1F8E9" shape=ellipse style=filled]
+		nest0_1 [label="Discussion Forum Moderation" color="#7E57C2" fillcolor="#EDE7F6" shape=diamond style=filled]
+		nest0_2 [label="Competency_Based Education" color="#C0CA33" fillcolor="#F9FBE7" shape=document style=filled]
+		nest0_3 [label="Virtual Labs and Simulations" color="#7E57C2" fillcolor="#EDE7F6" shape=database style=filled]
+	}
+	subgraph cluster_Course Evaluation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Course Evaluation"
+		nest1_0 [label="Personalized Learning Paths" color="#388E3C" fillcolor="#F1F8E9" shape=ellipse style=filled]
+		nest1_1 [label="Language Learning Platforms" color="#7E57C2" fillcolor="#EDE7F6" shape=action style=filled]
+		nest1_2 [label="Content Creation" color="#7E57C2" fillcolor="#EDE7F6" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#7E57C2" penwidth=1.5 style=dashed label="creates courses" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="protects data privacy" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#7E57C2" penwidth=1.5 style=dashed label="engages parents" dir=forward]
+	N12 -> N13 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#C0CA33" penwidth=1.5 style=dashed label="ensures accessibility" dir=forward]
+	nest0_0 -> nest0_1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest1_0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N11 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N9 -> S1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#C0CA33" penwidth=1.5 style=dashed label="provides OER" dir=forward]
+	N0 -> M0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N10 -> M1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N12 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> M1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	M1 -> N15 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_32.dot b/test/diagrams/scanned_easy/diagrams_32.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c47518ced1bd564f6fdf24a3234bb49287cdac76
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_32.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=LR
+	N0 [label="Seasonal Collection Planning" color="#BDBDBD" fillcolor="#F5F5F5" shape=vnode_shape style=filled]
+	N1 [label="Global Sourcing Strategy" color="#BDBDBD" fillcolor="#F5F5F5" shape=inputoutput style=filled]
+	N2 [label="Design Sketching" color="#FFDA4E" fillcolor="#FFE88D" shape=multipledocuments style=filled]
+	N3 [label="Sample Creation" color="#26A69A" fillcolor="#E0F2F1" shape=multipledocuments style=filled]
+	N4 [label="Inventory Management" color="#26A69A" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N5 [label="Marketing Campaign" color="#BDBDBD" fillcolor="#F5F5F5" shape=predefinedprocess style=filled]
+	N6 [label="Customer Feedback Analysis" color="#FFDA4E" fillcolor="#FFE88D" shape=preparation style=filled]
+	N7 [label="Fabric Innovation" color="#BDBDBD" fillcolor="#F5F5F5" shape=document style=filled]
+	N8 [label="Intellectual Property Protection" color="#26A69A" fillcolor="#E0F2F1" shape=predefinedprocess style=filled]
+	N0 -> N1 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#BDBDBD" penwidth=1.5 style=solid label="distributes" dir=forward]
+	N4 -> N5 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFDA4E" penwidth=1.5 style=dashed label="designs" dir=forward]
+	N6 -> N7 [color="#FFDA4E" penwidth=1.5 style=dashed label="innovates" dir=forward]
+	N7 -> N8 [color="#BDBDBD" penwidth=1.5 style=dashed label="inspects" dir=forward]
+	N2 -> N6 [color="#BDBDBD" penwidth=1.5 style=solid label="manages" dir=forward]
+	N7 -> N0 [color="#FFDA4E" penwidth=1.5 style=dashed label="tests" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_320.dot b/test/diagrams/scanned_easy/diagrams_320.dot
new file mode 100644
index 0000000000000000000000000000000000000000..567bad1fe0429190c9b15414d5744d8f5ad06788
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_320.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=RL
+	N0 [label="Global Accessibility Features" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N1 [label="Learner Analytics" color="#7986CB" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N2 [label="Engagement Metrics Tracking" color="#BA68C8" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	N3 [label="Self_Paced Learning Tracks" color="#FFEB3B" fillcolor="#FFF9C4" shape=rect style=filled]
+	N4 [label="Employer Recognition" color="#BA68C8" fillcolor="#F3E5F5" shape=rect style=filled]
+	N5 [label="Course Content Development" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+	N6 [label="Financial Aid for Learners" color="#BA68C8" fillcolor="#F3E5F5" shape=diamond style=filled]
+	N7 [label="Gamification for Engagement" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N8 [label="Career Pathway Mapping" color="#BA68C8" fillcolor="#F3E5F5" shape=rect style=filled]
+	N9 [label="Course Promotion" color="#BA68C8" fillcolor="#F3E5F5" shape=document style=filled]
+	N10 [label="Course Audit Options" color="#FFEB3B" fillcolor="#FFF9C4" shape=vnode_shape style=filled]
+	N11 [label="Certificate of Completion Issuance" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	S0 [label="" color="#7986CB" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#BA68C8" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#BA68C8" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFEB3B" fillcolor="#FFF9C4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#BA68C8" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Micro_credential Stacking {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Micro_credential Stacking"
+		nest0_0 [label="Corporate Training Solutions" color="#BA68C8" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+		nest0_1 [label="Verified Track Management" color="#7986CB" fillcolor="#E8EAF6" shape=rectangle style=filled]
+		nest0_2 [label="Peer Grading Implementation" color="#7986CB" fillcolor="#E8EAF6" shape=preparation style=filled]
+	}
+	subgraph cluster_Platform Selection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Platform Selection"
+		nest1_0 [label="Learner Support" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+		nest1_1 [label="Discussion Forum Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=predefinedprocess style=filled]
+		nest1_2 [label="Completion Rate Optimization" color="#7986CB" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+		nest1_3 [label="Forum Moderation" color="#7986CB" fillcolor="#E8EAF6" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N3 [color="#7986CB" penwidth=1.5 style=solid label="supports learners" dir=forward]
+	nest1_0 -> nest1_1 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed label="manages registrations" dir=forward]
+	nest1_3 -> N7 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N8 -> S1 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#FFEB3B" penwidth=1.5 style=solid label="administers quizzes" dir=forward]
+	S1 -> N11 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	M0 -> N8 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N3 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_324.dot b/test/diagrams/scanned_easy/diagrams_324.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8ef9840e84c772fc27186f633d5d3f2bbeb4e17d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_324.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=RL
+	N0 [label="Eating Habit Modification" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	N1 [label="Recipe Adaptation" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	N2 [label="Hydration Planning" color="#F06292" fillcolor="#FCE4EC" shape=action style=filled]
+	N3 [label="Food Label Interpretation" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	N4 [label="Sports Nutrition" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+	N5 [label="Micronutrient Analysis" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N6 [label="Maternal Nutrition" color="#3F51B5" fillcolor="#C5CAE9" shape=vnode_shape style=filled]
+	N7 [label="Grocery Shopping Guidance" color="#42A5F5" fillcolor="#F1F8FF" shape=predefinedprocess style=filled]
+	N8 [label="Restaurant Menu Analysis" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+	N9 [label="Supplement Recommendation" color="#F06292" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+	N10 [label="Community Nutrition Workshops" color="#F06292" fillcolor="#FCE4EC" shape=document style=filled]
+	N11 [label="Elderly Nutrition" color="#F06292" fillcolor="#FCE4EC" shape=vnode_shape style=filled]
+	N12 [label="Detoxification Programs" color="#F06292" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N13 [label="Disease_Specific Nutrition" color="#42A5F5" fillcolor="#F1F8FF" shape=predefinedprocess style=filled]
+	N14 [label="Inflammation and Diet" color="#42A5F5" fillcolor="#F1F8FF" shape=predefinedprocess style=filled]
+	S0 [label="" color="#F06292" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#42A5F5" fillcolor="#F1F8FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#42A5F5" fillcolor="#F1F8FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#F06292" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Food Safety Education {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Food Safety Education"
+		nest0_0 [label="Child Nutrition" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+		nest0_1 [label="Meal Planning" color="#3F51B5" fillcolor="#C5CAE9" shape=preparation style=filled]
+		nest0_2 [label="Nutritional Biomarker Analysis" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	}
+	subgraph cluster_Metabolism Rate Assessment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Metabolism Rate Assessment"
+		nest1_0 [label="Gut Microbiome Health" color="#42A5F5" fillcolor="#F1F8FF" shape=diamond style=filled]
+		nest1_1 [label="Dietary Software Usage" color="#42A5F5" fillcolor="#F1F8FF" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N4 -> N5 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#42A5F5" penwidth=1.5 style=solid label="improves" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N7 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N11 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N9 -> S0 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M0 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	M0 -> N11 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N11 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> M1 [color="#3F51B5" penwidth=1.5 style=solid label="filters" dir=forward]
+	N10 -> M1 [color="#000000" penwidth=1.5 style=dashed label="prepares" dir=forward]
+	M1 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> M2 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N5 -> M2 [color="#3F51B5" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N2 -> M2 [color="#F06292" penwidth=1.5 style=dashed label="identifies" dir=forward]
+	M2 -> N13 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_324.txt b/test/diagrams/scanned_easy/diagrams_324.txt
new file mode 100644
index 0000000000000000000000000000000000000000..eb033cbc4ea6068ecbc28adbfe9d6141ef408755
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_324.txt
@@ -0,0 +1,34 @@
+<Child Nutrition, connectedTo, Meal Planning>
+<Community Nutrition Workshops, connectedTo, Elderly Nutrition>
+<Community Nutrition Workshops, prepares, Inflammation and Diet>
+<Detoxification Programs, connectedTo, Disease_Specific Nutrition>
+<Dietary Software Usage, connectedTo, Elderly Nutrition>
+<Disease_Specific Nutrition, improves, Inflammation and Diet>
+<Eating Habit Modification, connectedTo, Recipe Adaptation>
+<Elderly Nutrition, connectedTo, Detoxification Programs>
+<Elderly Nutrition, connectedTo, Inflammation and Diet>
+<Food Label Interpretation, analyzes, Sports Nutrition>
+<Food Label Interpretation, connectedTo, Elderly Nutrition>
+<Grocery Shopping Guidance, connectedTo, Gut Microbiome Health>
+<Grocery Shopping Guidance, connectedTo, Restaurant Menu Analysis>
+<Gut Microbiome Health, connectedTo, Dietary Software Usage>
+<Hydration Planning, connectedTo, Child Nutrition>
+<Hydration Planning, connectedTo, Community Nutrition Workshops>
+<Hydration Planning, connectedTo, Food Label Interpretation>
+<Hydration Planning, connectedTo, Micronutrient Analysis>
+<Hydration Planning, identifies, Disease_Specific Nutrition>
+<Maternal Nutrition, connectedTo, Grocery Shopping Guidance>
+<Meal Planning, connectedTo, Nutritional Biomarker Analysis>
+<Micronutrient Analysis, connectedTo, Maternal Nutrition>
+<Micronutrient Analysis, optimizes, Disease_Specific Nutrition>
+<Nutritional Biomarker Analysis, connectedTo, Grocery Shopping Guidance>
+<Recipe Adaptation, connectedTo, Hydration Planning>
+<Restaurant Menu Analysis, connectedTo, Elderly Nutrition>
+<Restaurant Menu Analysis, connectedTo, Supplement Recommendation>
+<Sports Nutrition, connectedTo, Micronutrient Analysis>
+<Supplement Recommendation, connectedTo, Community Nutrition Workshops>
+<Supplement Recommendation, connectedTo, Detoxification Programs>
+<Supplement Recommendation, connectedTo, Disease_Specific Nutrition>
+<Supplement Recommendation, connectedTo, Elderly Nutrition>
+<Supplement Recommendation, connectedTo, Inflammation and Diet>
+<Supplement Recommendation, filters, Inflammation and Diet>
diff --git a/test/diagrams/scanned_easy/diagrams_326.dot b/test/diagrams/scanned_easy/diagrams_326.dot
new file mode 100644
index 0000000000000000000000000000000000000000..97c3d8cd52615f2b0ce78ace37868fe3cfec69b0
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_326.dot
@@ -0,0 +1,69 @@
+digraph {
+	rankdir=RL
+	N0 [label="Personal Growth Planning" color="#388E3C" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N1 [label="Biofeedback Training" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N2 [label="Social Connection Enhancement" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N3 [label="Gut Health for Wellness" color="#388E3C" fillcolor="#C8E6C9" shape=rect style=filled]
+	N4 [label="Aromatherapy Usage" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N5 [label="Massage Therapy" color="#73C6BC" fillcolor="#D0EFEE" shape=rect style=filled]
+	N6 [label="Financial Wellness Planning" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	N7 [label="Spiritual Exploration" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	N8 [label="Work_Life Balance Coaching" color="#00BCD4" fillcolor="#B2EBF2" shape=hexagon style=filled]
+	N9 [label="Positive Psychology Application" color="#00BCD4" fillcolor="#B2EBF2" shape=diamond style=filled]
+	N10 [label="Environmental Wellness" color="#73C6BC" fillcolor="#D0EFEE" shape=action style=filled]
+	N11 [label="Journaling for Wellness" color="#388E3C" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N12 [label="Holistic Health Assessment" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+	N13 [label="Behavior Change Support" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	S0 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Breathwork Exercises {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Breathwork Exercises"
+		nest0_0 [label="Stress Management" color="#388E3C" fillcolor="#C8E6C9" shape=hexagon style=filled]
+		nest0_1 [label="Emotional Well_being" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+		nest0_2 [label="Resilience Building" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	}
+	subgraph cluster_Burnout Prevention {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Burnout Prevention"
+		nest1_0 [label="Sleep Optimization" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+		nest1_1 [label="Immune System Support" color="#73C6BC" fillcolor="#D0EFEE" shape=action style=filled]
+		nest1_2 [label="Health Coaching" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="relaxes" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="enhances" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#00BCD4" penwidth=1.5 style=dashed label="researches" dir=forward]
+	N9 -> N10 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N8 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N12 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N10 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#00BCD4" penwidth=1.5 style=dashed label="develops" dir=forward]
+	N0 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#73C6BC" penwidth=1.5 style=dashed label="certifies" dir=forward]
+	N1 -> M0 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	M0 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_326.txt b/test/diagrams/scanned_easy/diagrams_326.txt
new file mode 100644
index 0000000000000000000000000000000000000000..54777a190aa6e5df254a29a909cb325baea06bc3
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_326.txt
@@ -0,0 +1,30 @@
+<Aromatherapy Usage, enhances, Massage Therapy>
+<Biofeedback Training, connectedTo, Gut Health for Wellness>
+<Biofeedback Training, connectedTo, Social Connection Enhancement>
+<Emotional Well_being, connectedTo, Resilience Building>
+<Environmental Wellness, connectedTo, Journaling for Wellness>
+<Financial Wellness Planning, connectedTo, Behavior Change Support>
+<Financial Wellness Planning, connectedTo, Journaling for Wellness>
+<Financial Wellness Planning, connectedTo, Spiritual Exploration>
+<Financial Wellness Planning, connectedTo, Stress Management>
+<Financial Wellness Planning, connectedTo, Work_Life Balance Coaching>
+<Financial Wellness Planning, develops, Holistic Health Assessment>
+<Gut Health for Wellness, relaxes, Aromatherapy Usage>
+<Health Coaching, connectedTo, Environmental Wellness>
+<Holistic Health Assessment, connectedTo, Behavior Change Support>
+<Holistic Health Assessment, connectedTo, Sleep Optimization>
+<Immune System Support, connectedTo, Health Coaching>
+<Journaling for Wellness, connectedTo, Holistic Health Assessment>
+<Massage Therapy, connectedTo, Financial Wellness Planning>
+<Personal Growth Planning, certifies, Gut Health for Wellness>
+<Personal Growth Planning, connectedTo, Behavior Change Support>
+<Personal Growth Planning, connectedTo, Biofeedback Training>
+<Personal Growth Planning, connectedTo, Journaling for Wellness>
+<Personal Growth Planning, connectedTo, Massage Therapy>
+<Positive Psychology Application, connectedTo, Environmental Wellness>
+<Resilience Building, connectedTo, Work_Life Balance Coaching>
+<Sleep Optimization, connectedTo, Immune System Support>
+<Social Connection Enhancement, connectedTo, Gut Health for Wellness>
+<Spiritual Exploration, connectedTo, Work_Life Balance Coaching>
+<Stress Management, connectedTo, Emotional Well_being>
+<Work_Life Balance Coaching, researches, Positive Psychology Application>
diff --git a/test/diagrams/scanned_easy/diagrams_328.dot b/test/diagrams/scanned_easy/diagrams_328.dot
new file mode 100644
index 0000000000000000000000000000000000000000..02acd8c11619d729220f0f19a42b43e4ec78ac4e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_328.dot
@@ -0,0 +1,76 @@
+digraph {
+	rankdir=RL
+	N0 [label="Meeting Translation Systems" color="#FFDA4E" fillcolor="#FFE88D" shape=rect style=filled]
+	N1 [label="Subtitling Generation" color="#FFDA4E" fillcolor="#FFE88D" shape=rectangle style=filled]
+	N2 [label="Technical Manual Translation" color="#7E57C2" fillcolor="#EDE7F6" shape=rectangle style=filled]
+	N3 [label="Speech Recognition" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+	N4 [label="Glossary Management" color="#4285F4" fillcolor="#D0E0F8" shape=rectangle style=filled]
+	N5 [label="Tone Recognition" color="#4285F4" fillcolor="#D0E0F8" shape=rectangle style=filled]
+	N6 [label="Data Security for Translated Content" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+	N7 [label="Live Event Translation" color="#FFDA4E" fillcolor="#FFE88D" shape=document style=filled]
+	N8 [label="Dialect Recognition" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	N9 [label="Cross_Lingual Communication" color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	N10 [label="Text_to_Speech Synthesis" color="#7E57C2" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+	N11 [label="Wearable Translation Devices" color="#7E57C2" fillcolor="#EDE7F6" shape=rect style=filled]
+	N12 [label="Multimodal Translation" color="#4285F4" fillcolor="#D0E0F8" shape=predefinedprocess style=filled]
+	N13 [label="Contextual Understanding" color="#4285F4" fillcolor="#D0E0F8" shape=action style=filled]
+	N14 [label="Medical Translation" color="#4285F4" fillcolor="#D0E0F8" shape=vnode_shape style=filled]
+	N15 [label="Real_Time Document Translation" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	S0 [label="" color="#7E57C2" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#7E57C2" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Legal Document Translation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Legal Document Translation"
+		nest0_0 [label="Sentiment Analysis in Translation" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+		nest0_1 [label="Rule_Based Machine Translation" color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	}
+	subgraph cluster_Social Media Translation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Social Media Translation"
+		nest1_0 [label="Domain_Specific Translation Models" color="#FFDA4E" fillcolor="#FFE88D" shape=predefinedprocess style=filled]
+		nest1_1 [label="Neural Machine Translation" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+		nest1_2 [label="API Integration for Translation Services" color="#7E57C2" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+		nest1_3 [label="Custom Vocabulary Integration" color="#4285F4" fillcolor="#D0E0F8" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#7E57C2" penwidth=1.5 style=solid label="adapts" dir=forward]
+	N14 -> N15 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFDA4E" penwidth=1.5 style=solid label="processes" dir=forward]
+	N6 -> nest0_0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N7 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#7E57C2" penwidth=1.5 style=solid label="updates" dir=forward]
+	N6 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N7 -> S1 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N14 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N14 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_329.txt b/test/diagrams/scanned_easy/diagrams_329.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0e3b7f8af3d490ab75154f8220b57d792a1f992b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_329.txt
@@ -0,0 +1,28 @@
+<3D Modeling from Drone Data, connectedTo, Aerial Photography>
+<3D Modeling from Drone Data, connectedTo, Collision Avoidance Systems>
+<3D Modeling from Drone Data, connectedTo, Geofencing Implementation>
+<3D Modeling from Drone Data, connectedTo, Payload Customization>
+<3D Modeling from Drone Data, connectedTo, Propulsion System Development>
+<Aerial Photography, connectedTo, Propeller Design>
+<Airspace Management for Drones, connectedTo, Urban Air Mobility Planning>
+<Collision Avoidance Systems, connectedTo, Airspace Management for Drones>
+<Collision Avoidance Systems, connectedTo, Geofencing Implementation>
+<Collision Avoidance Systems, connectedTo, Payload Customization>
+<Collision Avoidance Systems, connectedTo, Thermal Imaging with Drones>
+<Environmental Monitoring, connectedTo, Navigation System>
+<Flight Planning Software, connectedTo, Environmental Monitoring>
+<Geofencing Implementation, connectedTo, Drone Design>
+<Mapping and Surveying, connectedTo, Wildlife Tracking>
+<Navigation System, educates, Propulsion System Development>
+<Payload Customization, connectedTo, Drone Design>
+<Payload Customization, connectedTo, Geofencing Implementation>
+<Payload Customization, connectedTo, Videography>
+<Payload Integration, connectedTo, Mapping and Surveying>
+<Propeller Design, connectedTo, Collision Avoidance Systems>
+<Propulsion System Development, connectedTo, Geofencing Implementation>
+<Thermal Imaging with Drones, connectedTo, Geofencing Implementation>
+<Thermal Imaging with Drones, connectedTo, Payload Customization>
+<Urban Air Mobility Planning, connectedTo, Flight Planning Software>
+<Videography, connectedTo, Navigation System>
+<Videography, connectedTo, Payload Integration>
+<Wildlife Tracking, connectedTo, Videography>
diff --git a/test/diagrams/scanned_easy/diagrams_331.dot b/test/diagrams/scanned_easy/diagrams_331.dot
new file mode 100644
index 0000000000000000000000000000000000000000..87c3ce411f40a423820d0dd04bc013b3947c02fe
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_331.dot
@@ -0,0 +1,90 @@
+digraph {
+	rankdir=LR
+	N0 [label="Route Optimization" color="#FFC107" fillcolor="#FFECB3" shape=document style=filled]
+	N1 [label="Dynamic Pricing" color="#6EB76D" fillcolor="#E9F7E8" shape=predefinedprocess style=filled]
+	N2 [label="Vehicle Location Tracking" color="#FFF8A6" fillcolor="#FFFDE0" shape=diamond style=filled]
+	N3 [label="Accessibility for Users" color="#6EB76D" fillcolor="#E9F7E8" shape=hexagon style=filled]
+	N4 [label="Customer Support" color="#6EB76D" fillcolor="#E9F7E8" shape=predefinedprocess style=filled]
+	N5 [label="Supply_Demand Balancing" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	N6 [label="Bike_sharing Services" color="#6EB76D" fillcolor="#E9F7E8" shape=database style=filled]
+	N7 [label="Demand Prediction" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N8 [label="Scooter_sharing Services" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N9 [label="Ticketing and Fare Collection" color="#FFF8A6" fillcolor="#FFFDE0" shape=inputoutput style=filled]
+	N10 [label="Platform Development" color="#FFC107" fillcolor="#FFECB3" shape=vnode_shape style=filled]
+	N11 [label="Micro_mobility Management" color="#FFF8A6" fillcolor="#FFFDE0" shape=diamond style=filled]
+	N12 [label="First_Mile or Last_Mile Solutions" color="#FFC107" fillcolor="#FFECB3" shape=preparation style=filled]
+	N13 [label="User Rating and Feedback Systems" color="#FFC107" fillcolor="#FFECB3" shape=hexagon style=filled]
+	N14 [label="Regulatory Compliance" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N15 [label="Fraud Prevention" color="#6EB76D" fillcolor="#E9F7E8" shape=rect style=filled]
+	N16 [label="Driver Management" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N17 [label="Charging or Refueling Logistics" color="#FFF8A6" fillcolor="#FFFDE0" shape=inputoutput style=filled]
+	N18 [label="Smart City Integration" color="#6EB76D" fillcolor="#E9F7E8" shape=vnode_shape style=filled]
+	N19 [label="Public Transit Integration" color="#FFC107" fillcolor="#FFECB3" shape=database style=filled]
+	S0 [label="" color="#FFC107" fillcolor="#FFECB3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Insurance Models {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Insurance Models"
+		nest0_0 [label="Ride_sharing Services" color="#FFC107" fillcolor="#FFECB3" shape=document style=filled]
+		nest0_1 [label="Data Analytics for Usage Patterns" color="#FFC107" fillcolor="#FFECB3" shape=rect style=filled]
+		nest0_2 [label="Parking Integration" color="#FFF8A6" fillcolor="#FFFDE0" shape=database style=filled]
+	}
+	subgraph cluster_Fleet Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Fleet Management"
+		nest1_0 [label="User Onboarding" color="#FFF8A6" fillcolor="#FFFDE0" shape=parallelogram style=filled]
+		nest1_1 [label="Geofencing for Operations" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFC107" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N11 -> N12 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N17 -> N18 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N18 -> N19 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N14 -> nest0_0 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N5 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N5 [color="#FFC107" penwidth=1.5 style=dashed label="locates" dir=forward]
+	N8 -> S0 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#FFC107" penwidth=1.5 style=solid label="insures" dir=forward]
+	S0 -> N13 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N19 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N16 -> S1 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	S1 -> N19 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N18 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N2 -> S2 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=dashed label="regulates" dir=forward]
+	S2 -> N12 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#FFF8A6" penwidth=1.5 style=dashed label="unlocks" dir=forward]
+	S2 -> N18 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_332.dot b/test/diagrams/scanned_easy/diagrams_332.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ae8535565df326a1f269a3d4d7c23e9196ff6f76
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_332.dot
@@ -0,0 +1,80 @@
+digraph {
+	rankdir=BT
+	N0 [label="Emergency Vehicle Access Management" color="#64B5F6" fillcolor="#E3F2FD" shape=vnode_shape style=filled]
+	N1 [label="Automated Parking Garages" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+	N2 [label="Electric Vehicle Charging Integration" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N3 [label="Cloud_based Parking Platforms" color="#FF5722" fillcolor="#FFCCBC" shape=rectangle style=filled]
+	N4 [label="Maintenance of Systems" color="#64B5F6" fillcolor="#E3F2FD" shape=multipledocuments style=filled]
+	N5 [label="Edge Computing for Parking Data" color="#64B5F6" fillcolor="#E3F2FD" shape=hexagon style=filled]
+	N6 [label="Dynamic Pricing" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	N7 [label="Vacancy Monitoring" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N8 [label="Mobile Parking Apps" color="#64B5F6" fillcolor="#E3F2FD" shape=vnode_shape style=filled]
+	N9 [label="Event Parking Management" color="#64B5F6" fillcolor="#E3F2FD" shape=preparation style=filled]
+	N10 [label="Off_Street Parking Management" color="#64B5F6" fillcolor="#E3F2FD" shape=document style=filled]
+	N11 [label="Fleet Parking Solutions" color="#5C6BC0" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N12 [label="Navigation to Open Space" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+	N13 [label="Parking Guidance Systems" color="#64B5F6" fillcolor="#E3F2FD" shape=predefinedprocess style=filled]
+	N14 [label="User Experience Design for Apps" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N15 [label="Real_Time Information Display" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	S0 [label="" color="#64B5F6" fillcolor="#E3F2FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Demand Forecasting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Demand Forecasting"
+		nest0_0 [label="Billing and Reconciliation" color="#5C6BC0" fillcolor="#E8EAF6" shape=predefinedprocess style=filled]
+		nest0_1 [label="Security Surveillance" color="#64B5F6" fillcolor="#E3F2FD" shape=action style=filled]
+		nest0_2 [label="Data Analytics for Parking Usage" color="#64B5F6" fillcolor="#E3F2FD" shape=rectangle style=filled]
+	}
+	subgraph cluster_Violation Detection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Violation Detection"
+		nest1_0 [label="Environmental Impact Monitoring" color="#FF5722" fillcolor="#FFCCBC" shape=vnode_shape style=filled]
+		nest1_1 [label="Reservations System" color="#64B5F6" fillcolor="#E3F2FD" shape=document style=filled]
+	}
+	N0 -> N1 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#5C6BC0" penwidth=1.5 style=dashed label="develops" dir=forward]
+	N12 -> N13 [color="#5C6BC0" penwidth=1.5 style=solid label="repairs" dir=forward]
+	N13 -> N14 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N15 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#5C6BC0" penwidth=1.5 style=solid label="tracks" dir=forward]
+	N14 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N2 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N5 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=dashed label="automates" dir=forward]
+	S0 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S1 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N1 -> S2 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N6 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	S2 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N4 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N10 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#FF5722" penwidth=1.5 style=dashed label="alerts" dir=forward]
+	N9 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N12 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#FF5722" penwidth=1.5 style=solid label="informs" dir=forward]
+	M2 -> N6 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_333.dot b/test/diagrams/scanned_easy/diagrams_333.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a6c0c13490d62055b9cebcedbdc907f4b0b2fcbb
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_333.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=LR
+	N0 [label="Museum Ticketing" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+	N1 [label="Venue Capacity Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+	N2 [label="Access Control" color="#CFCFCF" fillcolor="#F6F6F6" shape=rect style=filled]
+	N3 [label="Queue Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	N4 [label="Scalper Prevention" color="#AF56A6" fillcolor="#DDCEDD" shape=inputoutput style=filled]
+	N5 [label="Airline Ticketing" color="#CB9BE1" fillcolor="#F2E6F5" shape=database style=filled]
+	N6 [label="Ticket Sales" color="#AF56A6" fillcolor="#DDCEDD" shape=preparation style=filled]
+	N7 [label="Promotional Code Management" color="#AF56A6" fillcolor="#DDCEDD" shape=diamond style=filled]
+	N8 [label="Audience Segmentation" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+	N9 [label="Blockchain Ticketing for Authenticity" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	N10 [label="Subscription or Season Pass Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=parallelogram style=filled]
+	N11 [label="Seat Mapping" color="#CFCFCF" fillcolor="#F6F6F6" shape=rectangle style=filled]
+	N12 [label="Customer Relationship Management Integration" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	S0 [label="" color="#AF56A6" fillcolor="#DDCEDD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#CFCFCF" fillcolor="#F6F6F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#AF56A6" fillcolor="#DDCEDD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#AF56A6" fillcolor="#DDCEDD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#AF56A6" fillcolor="#DDCEDD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Group Booking Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Group Booking Management"
+		nest0_0 [label="Fan Loyalty Programs" color="#CFCFCF" fillcolor="#F6F6F6" shape=multipledocuments style=filled]
+		nest0_1 [label="Theme Park Ticketing" color="#AF56A6" fillcolor="#DDCEDD" shape=action style=filled]
+		nest0_2 [label="Sports Event Ticketing" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+		nest0_3 [label="Fraud Prevention" color="#AF56A6" fillcolor="#DDCEDD" shape=document style=filled]
+	}
+	subgraph cluster_Event Promotion Tools {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Event Promotion Tools"
+		nest1_0 [label="Payment Processing" color="#AF56A6" fillcolor="#DDCEDD" shape=document style=filled]
+		nest1_1 [label="Concert Ticketing" color="#AF56A6" fillcolor="#DDCEDD" shape=action style=filled]
+		nest1_2 [label="Post_Event Feedback Collection" color="#CFCFCF" fillcolor="#F6F6F6" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#CFCFCF" penwidth=1.5 style=dashed label="complies" dir=forward]
+	N6 -> N7 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#CFCFCF" penwidth=1.5 style=dashed label="automates" dir=forward]
+	N9 -> N10 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed label="sells" dir=forward]
+	N2 -> nest0_0 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N6 [color="#CB9BE1" penwidth=1.5 style=dashed label="supports" dir=forward]
+	nest1_0 -> nest1_1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest1_0 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N5 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#AF56A6" penwidth=1.5 style=solid label="designs" dir=forward]
+	S2 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#AF56A6" penwidth=1.5 style=solid label="publishes" dir=forward]
+	M0 -> N10 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N6 -> M2 [color="#000000" penwidth=1.5 style=solid label="maintains" dir=forward]
+	M2 -> N10 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_334.txt b/test/diagrams/scanned_easy/diagrams_334.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1386811c1d5fd6a2c307634cfa86d193fec16788
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_334.txt
@@ -0,0 +1,24 @@
+<Accessibility Features, connectedTo, Anonymous Credential Systems>
+<Accessibility Features, connectedTo, Remote Voting Solutions>
+<Accessibility Features, connectedTo, Voter Registration>
+<Anonymous Credential Systems, connectedTo, Voter Registration>
+<Ballot Creation, connectedTo, Undue Influence Prevention>
+<Biometric Voter ID, connectedTo, Online Voting Systems>
+<Biometric Voter ID, connectedTo, Threat Modeling>
+<Hardware Tamper Detection, connectedTo, Optical Scan Systems>
+<Online Voting Systems, reports, Ballot Creation>
+<Optical Scan Systems, alerts, Remote Voting Solutions>
+<Remote Voting Solutions, connectedTo, Risk Management for Elections>
+<Remote Voting Solutions, connectedTo, System Certification>
+<Risk Management for Elections, connectedTo, Vote Counting>
+<System Certification, connectedTo, Transparency>
+<Transparency, connectedTo, Biometric Voter ID>
+<Undue Influence Prevention, connectedTo, Hardware Tamper Detection>
+<Undue Influence Prevention, connectedTo, Optical Scan Systems>
+<Vote Counting, connectedTo, Voting Machine Design>
+<Voter Authentication, connectedTo, Anonymous Credential Systems>
+<Voter Registration, connectedTo, Hardware Tamper Detection>
+<Voter Registration, connectedTo, Optical Scan Systems>
+<Voter Registration, connectedTo, Undue Influence Prevention>
+<Voter Registration, displays, Threat Modeling>
+<Voting Machine Design, connectedTo, Voter Authentication>
diff --git a/test/diagrams/scanned_easy/diagrams_336.dot b/test/diagrams/scanned_easy/diagrams_336.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e300a22db0e916f7f00efb51a3c401f73fcc0763
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_336.dot
@@ -0,0 +1,62 @@
+digraph {
+	rankdir=LR
+	N0 [label="Bias Mitigation" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+	N1 [label="Meta_Analysis" color="#61CAC3" fillcolor="#C2E8E6" shape=rectangle style=filled]
+	N2 [label="Statistical Analysis" color="#61CAC3" fillcolor="#C2E8E6" shape=action style=filled]
+	N3 [label="Research Design" color="#61CAC3" fillcolor="#C2E8E6" shape=rect style=filled]
+	N4 [label="Grant Proposal Writing" color="#FFD54F" fillcolor="#FFF8E1" shape=rectangle style=filled]
+	N5 [label="Open Science Practices" color="#61CAC3" fillcolor="#C2E8E6" shape=predefinedprocess style=filled]
+	N6 [label="Data Analysis" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N7 [label="Research Collaboration" color="#61CAC3" fillcolor="#C2E8E6" shape=preparation style=filled]
+	N8 [label="Research Ethics Application" color="#FFD54F" fillcolor="#FFF8E1" shape=parallelogram style=filled]
+	S1 [label="" color="#FFD54F" fillcolor="#FFF8E1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#61CAC3" fillcolor="#C2E8E6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFD54F" fillcolor="#FFF8E1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Data Collection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Data Collection"
+		nest0_0 [label="Software for Statistical Analysis" color="#61CAC3" fillcolor="#C2E8E6" shape=rect style=filled]
+		nest0_1 [label="Experiment Design" color="#FFA726" fillcolor="#FFF3E0" shape=preparation style=filled]
+		nest0_2 [label="Survey Design" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+		nest0_3 [label="Presentation at Conferences" color="#FFD54F" fillcolor="#FFF8E1" shape=rectangle style=filled]
+	}
+	subgraph cluster_Variable Identification {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Variable Identification"
+		nest1_0 [label="Qualitative Analysis" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+		nest1_1 [label="Literature Review" color="#FFD54F" fillcolor="#FFF8E1" shape=preparation style=filled]
+		nest1_2 [label="Manuscript Writing" color="#61CAC3" fillcolor="#C2E8E6" shape=multipledocuments style=filled]
+		nest1_3 [label="Research Question Refinement" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+	}
+	N0 -> N1 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_0 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest1_0 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S2 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	S2 -> N4 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	S2 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N6 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_336.txt b/test/diagrams/scanned_easy/diagrams_336.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e3a54f9915f56da06d1e23d4f71c98fa52c5c459
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_336.txt
@@ -0,0 +1,25 @@
+<Bias Mitigation, connectedTo, Meta_Analysis>
+<Data Analysis, connectedTo, Research Collaboration>
+<Experiment Design, connectedTo, Survey Design>
+<Grant Proposal Writing, connectedTo, Open Science Practices>
+<Grant Proposal Writing, connectedTo, Research Collaboration>
+<Literature Review, connectedTo, Manuscript Writing>
+<Manuscript Writing, connectedTo, Research Question Refinement>
+<Meta_Analysis, connectedTo, Statistical Analysis>
+<Open Science Practices, connectedTo, Data Analysis>
+<Open Science Practices, connectedTo, Research Collaboration>
+<Open Science Practices, connectedTo, Research Ethics Application>
+<Presentation at Conferences, connectedTo, Meta_Analysis>
+<Qualitative Analysis, connectedTo, Literature Review>
+<Research Collaboration, connectedTo, Research Ethics Application>
+<Research Design, connectedTo, Grant Proposal Writing>
+<Research Question Refinement, connectedTo, Research Design>
+<Software for Statistical Analysis, connectedTo, Experiment Design>
+<Statistical Analysis, connectedTo, Data Analysis>
+<Statistical Analysis, connectedTo, Grant Proposal Writing>
+<Statistical Analysis, connectedTo, Open Science Practices>
+<Statistical Analysis, connectedTo, Qualitative Analysis>
+<Statistical Analysis, connectedTo, Research Collaboration>
+<Statistical Analysis, connectedTo, Research Design>
+<Statistical Analysis, connectedTo, Software for Statistical Analysis>
+<Survey Design, connectedTo, Presentation at Conferences>
diff --git a/test/diagrams/scanned_easy/diagrams_337.txt b/test/diagrams/scanned_easy/diagrams_337.txt
new file mode 100644
index 0000000000000000000000000000000000000000..47718f8a8691024ec247cd388508b0618005b3bc
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_337.txt
@@ -0,0 +1,31 @@
+<AI in Library Services, trains, Library Website Management>
+<Archival Integration, connectedTo, Authority Control>
+<Authority Control, connectedTo, Integrated Library Systems>
+<Automated Materials Handling, connectedTo, Interlibrary Loan>
+<Circulation Management, connectedTo, AI in Library Services>
+<Collection Development, connectedTo, Mobile App for Library>
+<Data Migration, connectedTo, Database Management>
+<Database Management, circulates, Search Functionality>
+<Database Management, connectedTo, Authority Control>
+<Database Management, connectedTo, Integrated Library Systems>
+<Electronic Resource Management, analyzes, RFID System Implementation>
+<Federated Search, connectedTo, Database Management>
+<Integrated Library Systems, connectedTo, Interlibrary Loan>
+<Interlibrary Loan, connectedTo, Collection Development>
+<Library Website Management, connectedTo, Reference Desk Support>
+<Mobile App for Library, connectedTo, Circulation Management>
+<Open Access Repository Management, connectedTo, Electronic Resource Management>
+<Open Access Repository Management, connectedTo, Patron Services>
+<Open Access Repository Management, connectedTo, Search Functionality>
+<Patron Services, connectedTo, Federated Search>
+<Personalized Recommendations, connectedTo, Data Migration>
+<RFID System Implementation, connectedTo, Automated Materials Handling>
+<Reference Desk Support, connectedTo, Open Access Repository Management>
+<Search Functionality, borrows, Personalized Recommendations>
+<Search Functionality, connectedTo, Archival Integration>
+<Serials Control, connectedTo, Mobile App for Library>
+<Serials Control, connectedTo, Technical Support for Systems>
+<Technical Support for Systems, connectedTo, Collection Development>
+<Technical Support for Systems, connectedTo, Mobile App for Library>
+<User Training on Systems, connectedTo, Mobile App for Library>
+<User Training on Systems, connectedTo, Serials Control>
diff --git a/test/diagrams/scanned_easy/diagrams_338.dot b/test/diagrams/scanned_easy/diagrams_338.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b577cfffb292ec152d34be41f337b101b5a3a584
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_338.dot
@@ -0,0 +1,65 @@
+digraph {
+	rankdir=BT
+	N0 [label="Outreach and Education" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+	N1 [label="Finding Aid Creation" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+	N2 [label="Ethical Use of Archival Materials" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+	N3 [label="Database Management" color="#80DDEA" fillcolor="#D3F7F9" shape=rect style=filled]
+	N4 [label="Intellectual Property Rights Management" color="#80DDEA" fillcolor="#D3F7F9" shape=rect style=filled]
+	N5 [label="Subject Indexing for Archives" color="#673AB7" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+	N6 [label="Long_Term Digital Preservation" color="#673AB7" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N7 [label="Environmental Control" color="#90A4AE" fillcolor="#ECEFF1" shape=database style=filled]
+	N8 [label="Emulation for Obsolete Formats" color="#673AB7" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N9 [label="Serialization and Item Control" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	S0 [label="" color="#673AB7" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#90A4AE" fillcolor="#ECEFF1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#673AB7" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#673AB7" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Exhibition Curation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Exhibition Curation"
+		nest0_0 [label="Archival Advocacy" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+		nest0_1 [label="Records Management Integration" color="#673AB7" fillcolor="#D1C4E9" shape=rectangle style=filled]
+		nest0_2 [label="Public Access Systems" color="#90A4AE" fillcolor="#ECEFF1" shape=database style=filled]
+		nest0_3 [label="Data Migration for Digital Archives" color="#80DDEA" fillcolor="#D3F7F9" shape=database style=filled]
+	}
+	subgraph cluster_Web Archiving {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Web Archiving"
+		nest1_0 [label="Digital Forensics for Archives" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+		nest1_1 [label="Access and Reference Services" color="#673AB7" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+		nest1_2 [label="Records Retention Scheduling" color="#673AB7" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#80DDEA" penwidth=1.5 style=solid label="transcribes" dir=forward]
+	N5 -> N6 [color="#90A4AE" penwidth=1.5 style=solid label="procedures" dir=forward]
+	N6 -> N7 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest1_0 [color="#000000" penwidth=1.5 style=solid label="accessions" dir=forward]
+	nest1_2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S1 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#80DDEA" penwidth=1.5 style=solid label="policies" dir=forward]
+	N0 -> S2 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	S2 -> N4 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	S2 -> N5 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	M1 -> N5 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_338.txt b/test/diagrams/scanned_easy/diagrams_338.txt
new file mode 100644
index 0000000000000000000000000000000000000000..652a00275c2a57e292b493749c1009441ce3b1ef
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_338.txt
@@ -0,0 +1,26 @@
+<Access and Reference Services, connectedTo, Records Retention Scheduling>
+<Archival Advocacy, connectedTo, Records Management Integration>
+<Data Migration for Digital Archives, connectedTo, Finding Aid Creation>
+<Database Management, connectedTo, Intellectual Property Rights Management>
+<Database Management, connectedTo, Subject Indexing for Archives>
+<Digital Forensics for Archives, connectedTo, Access and Reference Services>
+<Emulation for Obsolete Formats, connectedTo, Serialization and Item Control>
+<Environmental Control, connectedTo, Emulation for Obsolete Formats>
+<Ethical Use of Archival Materials, connectedTo, Database Management>
+<Ethical Use of Archival Materials, connectedTo, Emulation for Obsolete Formats>
+<Ethical Use of Archival Materials, connectedTo, Intellectual Property Rights Management>
+<Ethical Use of Archival Materials, connectedTo, Subject Indexing for Archives>
+<Finding Aid Creation, connectedTo, Ethical Use of Archival Materials>
+<Intellectual Property Rights Management, transcribes, Subject Indexing for Archives>
+<Long_Term Digital Preservation, connectedTo, Archival Advocacy>
+<Long_Term Digital Preservation, connectedTo, Emulation for Obsolete Formats>
+<Long_Term Digital Preservation, connectedTo, Environmental Control>
+<Long_Term Digital Preservation, policies, Serialization and Item Control>
+<Outreach and Education, connectedTo, Finding Aid Creation>
+<Outreach and Education, connectedTo, Intellectual Property Rights Management>
+<Outreach and Education, connectedTo, Subject Indexing for Archives>
+<Public Access Systems, connectedTo, Data Migration for Digital Archives>
+<Records Management Integration, connectedTo, Public Access Systems>
+<Records Retention Scheduling, connectedTo, Database Management>
+<Subject Indexing for Archives, accessions, Digital Forensics for Archives>
+<Subject Indexing for Archives, procedures, Long_Term Digital Preservation>
diff --git a/test/diagrams/scanned_easy/diagrams_34.dot b/test/diagrams/scanned_easy/diagrams_34.dot
new file mode 100644
index 0000000000000000000000000000000000000000..acdf0a4b3f81477fc8f993cef1f5cc3d4a8d7a60
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_34.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=TB
+	N0 [label="Candidate Experience Management" color="#00BCD4" fillcolor="#E0F7FA" shape=vnode_shape style=filled]
+	N1 [label="Employer Branding" color="#00BCD4" fillcolor="#E0F7FA" shape=action style=filled]
+	N2 [label="Passive Candidate Engagement" color="#4DB6AC" fillcolor="#E0F2F1" shape=preparation style=filled]
+	N3 [label="Video Interviewing" color="#4DB6AC" fillcolor="#E0F2F1" shape=predefinedprocess style=filled]
+	N4 [label="Recruitment Metrics Reporting" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+	N5 [label="Offer Extension" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	N6 [label="Candidate Screening" color="#00BCD4" fillcolor="#E0F7FA" shape=document style=filled]
+	N7 [label="Talent Pipeline Building" color="#4DB6AC" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N8 [label="Global Recruitment Strategy" color="#00BCD4" fillcolor="#E0F7FA" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#4DB6AC" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="brands" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#00BCD4" penwidth=1.5 style=solid label="manages" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="advertises" dir=forward]
+	N7 -> N8 [color="#4DB6AC" penwidth=1.5 style=dashed label="automates" dir=forward]
+	N4 -> N2 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N4 [color="#4DB6AC" penwidth=1.5 style=dashed label="assesses" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_34.txt b/test/diagrams/scanned_easy/diagrams_34.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f782066f6fc095c7b57c24fa4c763bed2bf28f32
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_34.txt
@@ -0,0 +1,10 @@
+<Candidate Experience Management, connectedTo, Employer Branding>
+<Candidate Screening, advertises, Talent Pipeline Building>
+<Employer Branding, reports, Passive Candidate Engagement>
+<Offer Extension, connectedTo, Candidate Screening>
+<Passive Candidate Engagement, assesses, Recruitment Metrics Reporting>
+<Passive Candidate Engagement, brands, Video Interviewing>
+<Recruitment Metrics Reporting, connectedTo, Passive Candidate Engagement>
+<Recruitment Metrics Reporting, manages, Offer Extension>
+<Talent Pipeline Building, automates, Global Recruitment Strategy>
+<Video Interviewing, connectedTo, Recruitment Metrics Reporting>
diff --git a/test/diagrams/scanned_easy/diagrams_341.txt b/test/diagrams/scanned_easy/diagrams_341.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1c7165ef3246daaa1f872d3be20f75b61995586c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_341.txt
@@ -0,0 +1,29 @@
+<Arson Investigation, connectedTo, DNA Profiling>
+<Arson Investigation, connectedTo, Digital Forensics>
+<Arson Investigation, connectedTo, Fingerprint Analysis>
+<Arson Investigation, connectedTo, Forensic Odontology>
+<Ballistics Analysis, connectedTo, Toxicology Testing>
+<Bloodstain Pattern Analysis, connectedTo, Forensic Botany>
+<Chain of Custody Management, secures, Toolmark Analysis>
+<Cloud Forensics, reconstructs, Forensic Botany>
+<Cold Case Review, connectedTo, Cloud Forensics>
+<Crime Database Search, connectedTo, Chain of Custody Management>
+<DNA Profiling, connectedTo, Fingerprint Analysis>
+<DNA Profiling, connectedTo, Vehicle Forensics>
+<Digital Forensics, connectedTo, Fingerprint Analysis>
+<Document Examination, connectedTo, Forensic Psychology>
+<Evidence Collection, connectedTo, Ballistics Analysis>
+<Evidence Collection, connectedTo, Cold Case Review>
+<Evidence Collection, connectedTo, Toxicology Testing>
+<Expert Witness Testimony, connectedTo, Evidence Collection>
+<Facial Recognition, connectedTo, Expert Witness Testimony>
+<Fingerprint Analysis, connectedTo, Document Examination>
+<Fingerprint Analysis, connectedTo, Facial Recognition>
+<Forensic Botany, connectedTo, Ballistics Analysis>
+<Forensic Odontology, connectedTo, Crime Database Search>
+<Forensic Psychology, connectedTo, Bloodstain Pattern Analysis>
+<Toolmark Analysis, connectedTo, Cloud Forensics>
+<Toolmark Analysis, connectedTo, Facial Recognition>
+<Toxicology Testing, connectedTo, Voice Recognition>
+<Vehicle Forensics, connectedTo, Arson Investigation>
+<Voice Recognition, connectedTo, Forensic Anthropology>
diff --git a/test/diagrams/scanned_easy/diagrams_342.dot b/test/diagrams/scanned_easy/diagrams_342.dot
new file mode 100644
index 0000000000000000000000000000000000000000..80ac4fd3245be425c6e98ca417d599b9f5de8e02
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_342.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=LR
+	N0 [label="Terrorism Financing Interdiction" color="#4DB6AC" fillcolor="#E0F2F1" shape=action style=filled]
+	N1 [label="Counter_Propaganda" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+	N2 [label="Homeland Security Planning" color="#4DB6AC" fillcolor="#E0F2F1" shape=predefinedprocess style=filled]
+	N3 [label="Law Enforcement Operations" color="#F44336" fillcolor="#FFCDD2" shape=predefinedprocess style=filled]
+	N4 [label="Drone Countermeasures" color="#4DB6AC" fillcolor="#E0F2F1" shape=preparation style=filled]
+	N5 [label="Military Counterterrorism" color="#00BCD4" fillcolor="#E0F7FA" shape=parallelogram style=filled]
+	N6 [label="Transportation Security" color="#F44336" fillcolor="#FFCDD2" shape=database style=filled]
+	N7 [label="Critical Infrastructure Protection" color="#4DB6AC" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	N8 [label="Risk_Based Security Measures" color="#F44336" fillcolor="#FFCDD2" shape=multipledocuments style=filled]
+	N9 [label="International Cooperation" color="#4DB6AC" fillcolor="#E0F2F1" shape=action style=filled]
+	N10 [label="Hostage Negotiation" color="#F44336" fillcolor="#FFCDD2" shape=rect style=filled]
+	N11 [label="Early Warning Systems" color="#F44336" fillcolor="#FFCDD2" shape=database style=filled]
+	N12 [label="Behavioral Threat Assessment" color="#00BCD4" fillcolor="#E0F7FA" shape=parallelogram style=filled]
+	N13 [label="Emergency Preparedness" color="#00BCD4" fillcolor="#E0F7FA" shape=diamond style=filled]
+	N14 [label="Intelligence Analysis" color="#F44336" fillcolor="#FFCDD2" shape=vnode_shape style=filled]
+	N15 [label="Forensic Investigation of Attacks" color="#F44336" fillcolor="#FFCDD2" shape=document style=filled]
+	S0 [label="" color="#4DB6AC" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#4DB6AC" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#4DB6AC" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#4DB6AC" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Information Sharing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Information Sharing"
+		nest0_0 [label="Radicalization Prevention" color="#00BCD4" fillcolor="#E0F7FA" shape=rectangle style=filled]
+		nest0_1 [label="Surveillance and Monitoring" color="#00BCD4" fillcolor="#E0F7FA" shape=predefinedprocess style=filled]
+		nest0_2 [label="Insider Threat Programs" color="#00BCD4" fillcolor="#E0F7FA" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Chemical Biological Radiological Nuclear Defense {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Chemical Biological Radiological Nuclear Defense"
+		nest1_0 [label="Training Exercises" color="#00BCD4" fillcolor="#E0F7FA" shape=vnode_shape style=filled]
+		nest1_1 [label="Public Awareness Campaigns" color="#F44336" fillcolor="#FFCDD2" shape=vnode_shape style=filled]
+		nest1_2 [label="Border Security" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+		nest1_3 [label="Threat Assessment" color="#F44336" fillcolor="#FFCDD2" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="drills" dir=forward]
+	N5 -> N6 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#4DB6AC" penwidth=1.5 style=solid label="partners_engages" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N12 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#4DB6AC" penwidth=1.5 style=solid label="funds_tracks" dir=forward]
+	nest1_1 -> nest1_2 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N14 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N3 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N10 -> S0 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N15 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N9 -> S1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#4DB6AC" penwidth=1.5 style=solid label="trains" dir=forward]
+	S1 -> N13 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N8 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N3 -> M2 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M2 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N10 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_342.txt b/test/diagrams/scanned_easy/diagrams_342.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f0de0b5c894b91ad85a7ebe4c66e368c9fcbbf0c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_342.txt
@@ -0,0 +1,35 @@
+<Behavioral Threat Assessment, connectedTo, Emergency Preparedness>
+<Border Security, connectedTo, Threat Assessment>
+<Counter_Propaganda, connectedTo, Homeland Security Planning>
+<Counter_Propaganda, connectedTo, Risk_Based Security Measures>
+<Critical Infrastructure Protection, connectedTo, Risk_Based Security Measures>
+<Drone Countermeasures, drills, Military Counterterrorism>
+<Early Warning Systems, connectedTo, Behavioral Threat Assessment>
+<Emergency Preparedness, connectedTo, Intelligence Analysis>
+<Homeland Security Planning, connectedTo, Law Enforcement Operations>
+<Homeland Security Planning, connectedTo, Risk_Based Security Measures>
+<Hostage Negotiation, connectedTo, Early Warning Systems>
+<Hostage Negotiation, connectedTo, Emergency Preparedness>
+<Hostage Negotiation, connectedTo, Forensic Investigation of Attacks>
+<Hostage Negotiation, connectedTo, Intelligence Analysis>
+<Insider Threat Programs, connectedTo, Behavioral Threat Assessment>
+<Intelligence Analysis, connectedTo, Forensic Investigation of Attacks>
+<Intelligence Analysis, connectedTo, Training Exercises>
+<International Cooperation, connectedTo, Emergency Preparedness>
+<International Cooperation, connectedTo, Intelligence Analysis>
+<International Cooperation, partners_engages, Hostage Negotiation>
+<International Cooperation, trains, Forensic Investigation of Attacks>
+<Law Enforcement Operations, connectedTo, Drone Countermeasures>
+<Law Enforcement Operations, connectedTo, Hostage Negotiation>
+<Law Enforcement Operations, connectedTo, Radicalization Prevention>
+<Military Counterterrorism, connectedTo, Hostage Negotiation>
+<Military Counterterrorism, connectedTo, Transportation Security>
+<Public Awareness Campaigns, connectedTo, Border Security>
+<Radicalization Prevention, connectedTo, Surveillance and Monitoring>
+<Risk_Based Security Measures, connectedTo, International Cooperation>
+<Surveillance and Monitoring, connectedTo, Insider Threat Programs>
+<Terrorism Financing Interdiction, connectedTo, Counter_Propaganda>
+<Threat Assessment, connectedTo, Law Enforcement Operations>
+<Training Exercises, funds_tracks, Public Awareness Campaigns>
+<Transportation Security, connectedTo, Critical Infrastructure Protection>
+<Transportation Security, connectedTo, Hostage Negotiation>
diff --git a/test/diagrams/scanned_easy/diagrams_343.txt b/test/diagrams/scanned_easy/diagrams_343.txt
new file mode 100644
index 0000000000000000000000000000000000000000..14627d878db586a35593b1c1fdbee4bc99dd77e7
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_343.txt
@@ -0,0 +1,33 @@
+<Access Control Systems, connectedTo, Night Vision Technology>
+<Access Control Systems, connectedTo, Pattern Recognition>
+<Access Control Systems, connectedTo, Thermal Imaging>
+<Access Control Systems, installs, Sensor Network Deployment>
+<Access Control Systems, tracks, Data Storage and Retention>
+<Audio Surveillance, connectedTo, Public Space Monitoring>
+<Biometric Data Analysis, connectedTo, Audio Surveillance>
+<Border Surveillance, connectedTo, Remote Sensing>
+<Data Storage and Retention, connectedTo, Public Space Monitoring>
+<Data Storage and Retention, connectedTo, Real_time Alerts>
+<Data Storage and Retention, connectedTo, Social Media Monitoring>
+<Environmental Monitoring, connectedTo, Night Vision Technology>
+<Environmental Monitoring, connectedTo, Social Media Monitoring>
+<Ethical Guidelines, connectedTo, Access Control Systems>
+<Industrial Surveillance, connectedTo, Physical Security Integration>
+<Network Monitoring, connectedTo, Wildlife Tracking>
+<Night Vision Technology, connectedTo, Security Personnel Operations>
+<Pattern Recognition, connectedTo, Data Storage and Retention>
+<Pattern Recognition, connectedTo, Night Vision Technology>
+<Physical Security Integration, identifies, Data Collection>
+<Public Space Monitoring, connectedTo, Biometric Data Analysis>
+<Public Space Monitoring, connectedTo, Night Vision Technology>
+<Real_time Alerts, connectedTo, Environmental Monitoring>
+<Remote Sensing, controls, Ethical Guidelines>
+<Security Personnel Operations, connectedTo, Industrial Surveillance>
+<Sensor Network Deployment, connectedTo, Night Vision Technology>
+<Sensor Network Deployment, connectedTo, Thermal Imaging>
+<Sensor Network Deployment, connectedTo, Traffic Surveillance>
+<Social Media Monitoring, connectedTo, Night Vision Technology>
+<Social Media Monitoring, connectedTo, Public Space Monitoring>
+<Thermal Imaging, connectedTo, Pattern Recognition>
+<Traffic Surveillance, connectedTo, Network Monitoring>
+<Wildlife Tracking, connectedTo, Social Media Monitoring>
diff --git a/test/diagrams/scanned_easy/diagrams_344.dot b/test/diagrams/scanned_easy/diagrams_344.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c62a6ecf616e4ff40e235d7ce05dc2fabaa16c8b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_344.dot
@@ -0,0 +1,84 @@
+digraph {
+	rankdir=LR
+	N0 [label="Crisis Intervention" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+	N1 [label="Fraud Prevention" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N2 [label="Police_Community Relations" color="#FF5722" fillcolor="#FFCCBC" shape=preparation style=filled]
+	N3 [label="Drug Prevention Initiatives" color="#03A9F4" fillcolor="#B3E5FC" shape=predefinedprocess style=filled]
+	N4 [label="Burglary Prevention" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N5 [label="Data Sharing Initiatives" color="#26A69A" fillcolor="#E0F2F1" shape=database style=filled]
+	N6 [label="Domestic Violence Prevention" color="#FF5722" fillcolor="#FFCCBC" shape=database style=filled]
+	N7 [label="Mediation Services" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N8 [label="Behavioral Science in Prevention" color="#03A9F4" fillcolor="#B3E5FC" shape=rect style=filled]
+	N9 [label="Public Awareness Campaigns" color="#03A9F4" fillcolor="#B3E5FC" shape=multipledocuments style=filled]
+	N10 [label="Rehabilitation Programs" color="#03A9F4" fillcolor="#B3E5FC" shape=database style=filled]
+	N11 [label="Deterrence Strategies" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram style=filled]
+	N12 [label="Security Lighting" color="#26A69A" fillcolor="#E0F2F1" shape=document style=filled]
+	N13 [label="Community Policing" color="#FF5722" fillcolor="#FFCCBC" shape=database style=filled]
+	N14 [label="Target Hardening" color="#03A9F4" fillcolor="#B3E5FC" shape=inputoutput style=filled]
+	N15 [label="Crime Data Analysis" color="#FF5722" fillcolor="#FFCCBC" shape=action style=filled]
+	N16 [label="Identity Theft Prevention" color="#26A69A" fillcolor="#E0F2F1" shape=inputoutput style=filled]
+	S0 [label="" color="#03A9F4" fillcolor="#B3E5FC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#03A9F4" fillcolor="#B3E5FC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Youth Programs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Youth Programs"
+		nest0_0 [label="Law Enforcement Training" color="#03A9F4" fillcolor="#B3E5FC" shape=vnode_shape style=filled]
+		nest0_1 [label="Environmental Design" color="#26A69A" fillcolor="#E0F2F1" shape=preparation style=filled]
+		nest0_2 [label="Situational Crime Prevention" color="#03A9F4" fillcolor="#B3E5FC" shape=preparation style=filled]
+		nest0_3 [label="Sexual Assault Prevention" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	}
+	subgraph cluster_Cybercrime Prevention {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cybercrime Prevention"
+		nest1_0 [label="Crime Prevention Through Education" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+		nest1_1 [label="Reintegration Programs" color="#03A9F4" fillcolor="#B3E5FC" shape=inputoutput style=filled]
+		nest1_2 [label="Early Intervention Programs" color="#26A69A" fillcolor="#E0F2F1" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FF5722" penwidth=1.5 style=dashed label="data_collects" dir=forward]
+	N7 -> N8 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#26A69A" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	nest0_0 -> nest0_1 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> nest0_0 [color="#03A9F4" penwidth=1.5 style=solid label="rehabilitates_offenders" dir=forward]
+	nest0_3 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N15 -> nest1_0 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N12 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S0 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N16 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N10 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N16 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	M0 -> N13 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	M2 -> N4 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_345.dot b/test/diagrams/scanned_easy/diagrams_345.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a45630622ecda095db3209754bafe10fe85a354a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_345.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=RL
+	N0 [label="GIS Mapping for Habitats" color="#80DDEA" fillcolor="#D3F7F9" shape=rect style=filled]
+	N1 [label="Disease Surveillance" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N2 [label="Satellite Tracking of Animals" color="#03A9F4" fillcolor="#B3E5FC" shape=vnode_shape style=filled]
+	N3 [label="Protected Area Management" color="#03A9F4" fillcolor="#B3E5FC" shape=database style=filled]
+	N4 [label="Reintroduction Programs" color="#80DDEA" fillcolor="#D3F7F9" shape=diamond style=filled]
+	N5 [label="Invasive Species Control" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N6 [label="Forestry Practices for Conservation" color="#AB47BC" fillcolor="#F3E5F5" shape=preparation style=filled]
+	N7 [label="Wildlife Rescue and Rehabilitation" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N8 [label="Genetic Diversity Analysis" color="#80DDEA" fillcolor="#D3F7F9" shape=action style=filled]
+	N9 [label="Climate Change Adaptation for Wildlife" color="#03A9F4" fillcolor="#B3E5FC" shape=multipledocuments style=filled]
+	N10 [label="Captive Breeding Programs" color="#AB47BC" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N11 [label="Translocation of Species" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+	N12 [label="Anti_Poaching Operations" color="#80DDEA" fillcolor="#D3F7F9" shape=parallelogram style=filled]
+	N13 [label="Conservation Education" color="#80DDEA" fillcolor="#D3F7F9" shape=database style=filled]
+	N14 [label="Remote Sensing for Conservation" color="#80DDEA" fillcolor="#D3F7F9" shape=database style=filled]
+	N15 [label="Drone_based Monitoring" color="#03A9F4" fillcolor="#B3E5FC" shape=hexagon style=filled]
+	S0 [label="" color="#AB47BC" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#80DDEA" fillcolor="#D3F7F9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#03A9F4" fillcolor="#B3E5FC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#03A9F4" fillcolor="#B3E5FC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Policy Advocacy {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Policy Advocacy"
+		nest0_0 [label="Pollution Impact Assessment" color="#03A9F4" fillcolor="#B3E5FC" shape=diamond style=filled]
+		nest0_1 [label="Law Enforcement" color="#03A9F4" fillcolor="#B3E5FC" shape=document style=filled]
+		nest0_2 [label="Conservation Genetics" color="#03A9F4" fillcolor="#B3E5FC" shape=predefinedprocess style=filled]
+		nest0_3 [label="Species Monitoring" color="#80DDEA" fillcolor="#D3F7F9" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Sustainable Resource Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Sustainable Resource Management"
+		nest1_0 [label="Data Management for Conservation" color="#AB47BC" fillcolor="#F3E5F5" shape=preparation style=filled]
+		nest1_1 [label="Ecological Survey" color="#03A9F4" fillcolor="#B3E5FC" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#03A9F4" penwidth=1.5 style=dashed label="community_engages" dir=forward]
+	N3 -> N4 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed label="analyzes_data" dir=forward]
+	N10 -> N11 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid label="monitors" dir=forward]
+	N12 -> N13 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N3 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest1_0 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N13 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	M0 -> N10 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N8 -> M1 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N14 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_346.dot b/test/diagrams/scanned_easy/diagrams_346.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7f6ddbb58c22e553e04fb33c432fa909751641ac
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_346.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=BT
+	N0 [label="Coastal Zone Management" color="#F7BEE0" fillcolor="#FAEBF3" shape=action style=filled]
+	N1 [label="Sediment Analysis" color="#388E3C" fillcolor="#F1F8E9" shape=rectangle style=filled]
+	N2 [label="Data Visualization" color="#F7BEE0" fillcolor="#FAEBF3" shape=action style=filled]
+	N3 [label="Deep_Sea Exploration" color="#388E3C" fillcolor="#F1F8E9" shape=action style=filled]
+	N4 [label="Physical Oceanography" color="#B8C0F5" fillcolor="#ECF0FD" shape=database style=filled]
+	N5 [label="Underwater Acoustics" color="#F7BEE0" fillcolor="#FAEBF3" shape=diamond style=filled]
+	N6 [label="Coral Reef Monitoring" color="#F7BEE0" fillcolor="#FAEBF3" shape=predefinedprocess style=filled]
+	N7 [label="Plastic Pollution Research" color="#388E3C" fillcolor="#F1F8E9" shape=hexagon style=filled]
+	N8 [label="Ocean Current Measurement" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N9 [label="Polar Oceanography" color="#B8C0F5" fillcolor="#ECF0FD" shape=multipledocuments style=filled]
+	N10 [label="Ocean Renewable Energy" color="#B8C0F5" fillcolor="#ECF0FD" shape=inputoutput style=filled]
+	N11 [label="Ocean Temperature Sensing" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N12 [label="Hydrothermal Vent Exploration" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+	N13 [label="Salinity Measurement" color="#388E3C" fillcolor="#F1F8E9" shape=inputoutput style=filled]
+	S0 [label="" color="#B8C0F5" fillcolor="#ECF0FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#B8C0F5" fillcolor="#ECF0FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#F7BEE0" fillcolor="#FAEBF3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#B8C0F5" fillcolor="#ECF0FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#B8C0F5" fillcolor="#ECF0FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Marine Remote Sensing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Marine Remote Sensing"
+		nest0_0 [label="ROV or AUV Operations" color="#B8C0F5" fillcolor="#ECF0FD" shape=rect style=filled]
+		nest0_1 [label="Marine Life Observation" color="#388E3C" fillcolor="#F1F8E9" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Coastal Erosion Research {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Coastal Erosion Research"
+		nest1_0 [label="Tsunami Prediction" color="#F7BEE0" fillcolor="#FAEBF3" shape=inputoutput style=filled]
+		nest1_1 [label="Marine Pollution Monitoring" color="#F7BEE0" fillcolor="#FAEBF3" shape=database style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="educates" dir=forward]
+	N1 -> N2 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed label="simulates" dir=forward]
+	nest0_0 -> nest0_1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N12 -> nest0_0 [color="#B8C0F5" penwidth=1.5 style=dashed label="explores" dir=forward]
+	nest0_1 -> N1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest1_0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N10 -> S1 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#B8C0F5" penwidth=1.5 style=solid label="currents" dir=forward]
+	N4 -> M0 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N5 -> M2 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M2 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N13 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_348.dot b/test/diagrams/scanned_easy/diagrams_348.dot
new file mode 100644
index 0000000000000000000000000000000000000000..51b7c1084bfe6d24503fa6e38388c9e102c83f25
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_348.dot
@@ -0,0 +1,65 @@
+digraph {
+	rankdir=BT
+	N0 [label="Data Privacy in Genomics" color="#00BCD4" fillcolor="#B2EBF2" shape=hexagon style=filled]
+	N1 [label="Cloning Technologies" color="#2196F3" fillcolor="#BBDEFB" shape=rect style=filled]
+	N2 [label="Next_Generation Sequencing" color="#00BCD4" fillcolor="#B2EBF2" shape=rectangle style=filled]
+	N3 [label="Genomic Data Sharing" color="#00BCD4" fillcolor="#B2EBF2" shape=inputoutput style=filled]
+	N4 [label="Population Genomics" color="#00BCD4" fillcolor="#B2EBF2" shape=inputoutput style=filled]
+	N5 [label="Gene Therapy Development" color="#73C6BC" fillcolor="#D0EFEE" shape=inputoutput style=filled]
+	N6 [label="Microbial Genomics" color="#00BCD4" fillcolor="#B2EBF2" shape=rectangle style=filled]
+	N7 [label="Comparative Genomics" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N8 [label="Methylation Analysis" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	N9 [label="Disease Gene Identification" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+	N10 [label="Functional Genomics" color="#2196F3" fillcolor="#BBDEFB" shape=diamond style=filled]
+	N11 [label="DNA Sequencing" color="#00BCD4" fillcolor="#B2EBF2" shape=inputoutput style=filled]
+	N12 [label="Pharmacogenomics" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	S0 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Epigenomics {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Epigenomics"
+		nest0_0 [label="Gene Expression Profiling" color="#00BCD4" fillcolor="#B2EBF2" shape=document style=filled]
+		nest0_1 [label="Computational Genomics" color="#73C6BC" fillcolor="#D0EFEE" shape=rectangle style=filled]
+		nest0_2 [label="Synthetic Genomics" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	}
+	subgraph cluster_Genome_Wide Association Studies {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Genome_Wide Association Studies"
+		nest1_0 [label="Rare Disease Genomics" color="#73C6BC" fillcolor="#D0EFEE" shape=inputoutput style=filled]
+		nest1_1 [label="Genomic Data Analysis" color="#73C6BC" fillcolor="#D0EFEE" shape=document style=filled]
+	}
+	N0 -> N1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest1_0 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N7 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N6 -> S0 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#000000" penwidth=1.5 style=dashed label="accesses_data" dir=forward]
+	N7 -> M2 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N11 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_349.txt b/test/diagrams/scanned_easy/diagrams_349.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c8d32c04d84d77d95b172fefc6c3270cb4044af3
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_349.txt
@@ -0,0 +1,38 @@
+<Accent Recognition, connectedTo, Speech Analytics>
+<Acoustic Modeling, connectedTo, Cross_Lingual Speech Recognition>
+<Automatic Speech Recognition, connectedTo, Noise Reduction>
+<Children's Speech Recognition, connectedTo, Contextual Understanding>
+<Children's Speech Recognition, connectedTo, Multimodal Speech Processing>
+<Children's Speech Recognition, connectedTo, Voice Activity Detection>
+<Contextual Understanding, designs, Prosody Analysis>
+<Cross_Lingual Speech Recognition, connectedTo, Accent Recognition>
+<Cross_Lingual Speech Recognition, connectedTo, Voice Activity Detection>
+<Dialect Adaptation, connectedTo, Multimodal Speech Processing>
+<Emotion Recognition from Voice, connectedTo, Voice Search Optimization>
+<Language Modeling, learns, Medical Transcription>
+<Medical Transcription, connectedTo, Automatic Speech Recognition>
+<Medical Transcription, connectedTo, Speech Data Annotation>
+<Meeting Transcription, connectedTo, Voice Assistant Development>
+<Multimodal Speech Processing, connectedTo, Automatic Speech Recognition>
+<Multimodal Speech Processing, connectedTo, Emotion Recognition from Voice>
+<Multimodal Speech Processing, connectedTo, Voice Search Optimization>
+<Phonetic Transcription, connectedTo, Voice Activity Detection>
+<Phonetic Transcription, identifies, Text_to_Speech Synthesis>
+<Phonetic Transcription, monitors, Prosody Analysis>
+<Prosody Analysis, connectedTo, Cross_Lingual Speech Recognition>
+<Prosody Analysis, connectedTo, Voice Activity Detection>
+<Real_Time Captioning, connectedTo, Dialect Adaptation>
+<Security Authentication, connectedTo, Speech Emotion Recognition>
+<Speech Analytics, connectedTo, Meeting Transcription>
+<Speech Data Annotation, connectedTo, Acoustic Modeling>
+<Speech Emotion Recognition, connectedTo, Language Modeling>
+<Text_to_Speech Synthesis, commands, Children's Speech Recognition>
+<Voice Activity Detection, connectedTo, Multimodal Speech Processing>
+<Voice Activity Detection, connectedTo, Real_Time Captioning>
+<Voice Assistant Development, licenses, Contextual Understanding>
+<Voice Biometrics, connectedTo, Phonetic Transcription>
+<Voice Biometrics, connectedTo, Prosody Analysis>
+<Voice Search Optimization, connectedTo, Language Modeling>
+<Voice Search Optimization, connectedTo, Medical Transcription>
+<Voice Search Optimization, connectedTo, Noise Reduction>
+<Voice Search Optimization, connectedTo, Security Authentication>
diff --git a/test/diagrams/scanned_easy/diagrams_35.dot b/test/diagrams/scanned_easy/diagrams_35.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5081a7324ad0caaa62375ed2e32ae12d4f2c00c4
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_35.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=BT
+	N0 [label="Accessibility Support" color="#92C79A" fillcolor="#E8F0EA" shape=box style=filled]
+	N1 [label="Order Status Check" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	N2 [label="Issue Escalation" color="#92C79A" fillcolor="#E8F0EA" shape=database style=filled]
+	N3 [label="Social Media Response" color="#6FE1D5" fillcolor="#C9EFEC" shape=box style=filled]
+	N4 [label="Customer Onboarding Support" color="#6FE1D5" fillcolor="#C9EFEC" shape=rect style=filled]
+	N5 [label="Customer Journey Mapping" color="#6FE1D5" fillcolor="#C9EFEC" shape=action style=filled]
+	N6 [label="Email Support" color="#92C79A" fillcolor="#E8F0EA" shape=rect style=filled]
+	N7 [label="Customer Relationship Management System Use" color="#92C79A" fillcolor="#E8F0EA" shape=parallelogram style=filled]
+	N8 [label="Product Information Provision" color="#64B5F6" fillcolor="#E3F2FD" shape=preparation style=filled]
+	N9 [label="Sentiment Analysis" color="#6FE1D5" fillcolor="#C9EFEC" shape=vnode_shape style=filled]
+	N10 [label="Technical Support" color="#92C79A" fillcolor="#E8F0EA" shape=diamond style=filled]
+	N0 -> N1 [color="#64B5F6" penwidth=1.5 style=dashed label="answers" dir=forward]
+	N1 -> N2 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#92C79A" penwidth=1.5 style=dashed label="assists" dir=forward]
+	N3 -> N4 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#6FE1D5" penwidth=1.5 style=solid label="calls" dir=forward]
+	N7 -> N8 [color="#64B5F6" penwidth=1.5 style=solid label="personals" dir=forward]
+	N8 -> N9 [color="#92C79A" penwidth=1.5 style=dashed label="tracks" dir=forward]
+	N9 -> N10 [color="#92C79A" penwidth=1.5 style=solid label="improves" dir=forward]
+	N1 -> N8 [color="#000000" penwidth=1.5 style=dashed label="satisfies" dir=forward]
+	N10 -> N2 [color="#000000" penwidth=1.5 style=solid label="troubleshoots" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_35.txt b/test/diagrams/scanned_easy/diagrams_35.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5285595151e3b403e4d698dbae088b121158fb6e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_35.txt
@@ -0,0 +1,12 @@
+<Accessibility Support, answers, Order Status Check>
+<Customer Journey Mapping, connectedTo, Email Support>
+<Customer Onboarding Support, connectedTo, Customer Journey Mapping>
+<Customer Relationship Management System Use, personals, Product Information Provision>
+<Email Support, calls, Customer Relationship Management System Use>
+<Issue Escalation, assists, Social Media Response>
+<Order Status Check, connectedTo, Issue Escalation>
+<Order Status Check, satisfies, Product Information Provision>
+<Product Information Provision, tracks, Sentiment Analysis>
+<Sentiment Analysis, improves, Technical Support>
+<Social Media Response, connectedTo, Customer Onboarding Support>
+<Technical Support, troubleshoots, Issue Escalation>
diff --git a/test/diagrams/scanned_easy/diagrams_351.dot b/test/diagrams/scanned_easy/diagrams_351.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cc2950004ae1f5f37446ae8918a94810753704bf
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_351.dot
@@ -0,0 +1,84 @@
+digraph {
+	rankdir=LR
+	N0 [label="Aerospace Digital Twins" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	N1 [label="System Integration Architecture" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	N2 [label="Digital Twin Lifecycle Management" color="#81C784" fillcolor="#F1F8E9" shape=vnode_shape style=filled]
+	N3 [label="Remote Control Capabilities" color="#81C784" fillcolor="#F1F8E9" shape=document style=filled]
+	N4 [label="IoT Data Ingestion" color="#81C784" fillcolor="#F1F8E9" shape=predefinedprocess style=filled]
+	N5 [label="Smart Manufacturing" color="#81C784" fillcolor="#F1F8E9" shape=inputoutput style=filled]
+	N6 [label="Model Creation" color="#9FA9E1" fillcolor="#D6D9F0" shape=rect style=filled]
+	N7 [label="Risk Assessment" color="#9FA9E1" fillcolor="#D6D9F0" shape=preparation style=filled]
+	N8 [label="Automotive Digital Twins" color="#81C784" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+	N9 [label="Building Information Modeling Integration" color="#FFDA4E" fillcolor="#FFE88D" shape=database style=filled]
+	N10 [label="Performance Monitoring" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	N11 [label="Scalability of Models" color="#81C784" fillcolor="#F1F8E9" shape=vnode_shape style=filled]
+	N12 [label="Virtual Reality Interaction" color="#81C784" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N13 [label="Virtual Prototyping" color="#81C784" fillcolor="#F1F8E9" shape=diamond style=filled]
+	N14 [label="Simulation and Prediction" color="#81C784" fillcolor="#F1F8E9" shape=vnode_shape style=filled]
+	N15 [label="Autonomous Operations" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N16 [label="What_If Scenario Analysis" color="#9FA9E1" fillcolor="#D6D9F0" shape=parallelogram style=filled]
+	N17 [label="AI or ML Model Integration" color="#81C784" fillcolor="#F1F8E9" shape=predefinedprocess style=filled]
+	N18 [label="Anomaly Detection" color="#9FA9E1" fillcolor="#D6D9F0" shape=vnode_shape style=filled]
+	N19 [label="Smart City Planning" color="#81C784" fillcolor="#F1F8E9" shape=diamond style=filled]
+	S0 [label="" color="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#81C784" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Operational Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Operational Planning"
+		nest0_0 [label="Augmented Reality Visualization" color="#81C784" fillcolor="#F1F8E9" shape=action style=filled]
+		nest0_1 [label="Interoperability Standards" color="#81C784" fillcolor="#F1F8E9" shape=predefinedprocess style=filled]
+		nest0_2 [label="Predictive Maintenance" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Data Security for Digital Twins {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Data Security for Digital Twins"
+		nest1_0 [label="Design Validation" color="#81C784" fillcolor="#F1F8E9" shape=vnode_shape style=filled]
+		nest1_1 [label="Historical Data Analysis" color="#9FA9E1" fillcolor="#D6D9F0" shape=diamond style=filled]
+		nest1_2 [label="Lifecycle Management" color="#9FA9E1" fillcolor="#D6D9F0" shape=action style=filled]
+	}
+	N0 -> N1 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N17 -> N18 [color="#81C784" penwidth=1.5 style=dashed label="decision_supports" dir=forward]
+	N18 -> N19 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> nest1_0 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N4 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N7 -> S0 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	S0 -> N16 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S1 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N19 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	M1 -> N9 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_351.txt b/test/diagrams/scanned_easy/diagrams_351.txt
new file mode 100644
index 0000000000000000000000000000000000000000..af46a0aa2badea8f8129702024c9642b6a07e709
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_351.txt
@@ -0,0 +1,37 @@
+<AI or ML Model Integration, decision_supports, Anomaly Detection>
+<Aerospace Digital Twins, connectedTo, System Integration Architecture>
+<Anomaly Detection, connectedTo, Smart City Planning>
+<Augmented Reality Visualization, connectedTo, Interoperability Standards>
+<Automotive Digital Twins, connectedTo, Building Information Modeling Integration>
+<Autonomous Operations, connectedTo, What_If Scenario Analysis>
+<Building Information Modeling Integration, connectedTo, Augmented Reality Visualization>
+<Building Information Modeling Integration, connectedTo, Performance Monitoring>
+<Design Validation, connectedTo, Historical Data Analysis>
+<Digital Twin Lifecycle Management, connectedTo, Model Creation>
+<Digital Twin Lifecycle Management, connectedTo, Remote Control Capabilities>
+<Historical Data Analysis, connectedTo, Lifecycle Management>
+<Interoperability Standards, connectedTo, Predictive Maintenance>
+<IoT Data Ingestion, connectedTo, Building Information Modeling Integration>
+<IoT Data Ingestion, connectedTo, Smart Manufacturing>
+<Lifecycle Management, connectedTo, IoT Data Ingestion>
+<Model Creation, connectedTo, Building Information Modeling Integration>
+<Model Creation, connectedTo, Risk Assessment>
+<Performance Monitoring, connectedTo, Scalability of Models>
+<Predictive Maintenance, connectedTo, Scalability of Models>
+<Remote Control Capabilities, connectedTo, Building Information Modeling Integration>
+<Remote Control Capabilities, connectedTo, IoT Data Ingestion>
+<Risk Assessment, connectedTo, Automotive Digital Twins>
+<Risk Assessment, connectedTo, Scalability of Models>
+<Risk Assessment, connectedTo, What_If Scenario Analysis>
+<Scalability of Models, connectedTo, Virtual Reality Interaction>
+<Simulation and Prediction, connectedTo, Autonomous Operations>
+<Simulation and Prediction, connectedTo, Design Validation>
+<Smart Manufacturing, connectedTo, Autonomous Operations>
+<Smart Manufacturing, connectedTo, Model Creation>
+<Smart Manufacturing, connectedTo, Smart City Planning>
+<Smart Manufacturing, connectedTo, Virtual Prototyping>
+<System Integration Architecture, connectedTo, Digital Twin Lifecycle Management>
+<System Integration Architecture, connectedTo, Model Creation>
+<Virtual Prototyping, connectedTo, Simulation and Prediction>
+<Virtual Reality Interaction, connectedTo, Virtual Prototyping>
+<What_If Scenario Analysis, connectedTo, AI or ML Model Integration>
diff --git a/test/diagrams/scanned_easy/diagrams_352.dot b/test/diagrams/scanned_easy/diagrams_352.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6df8abf0978e8cdbff6f0f5b3f73f9972dcae4e5
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_352.dot
@@ -0,0 +1,65 @@
+digraph {
+	rankdir=RL
+	N0 [label="Decision Automation" color="#4FC3F7" fillcolor="#E1F5FE" shape=rectangle style=filled]
+	N1 [label="Orchestration of Processes" color="#DCE775" fillcolor="#F9FBE7" shape=vnode_shape style=filled]
+	N2 [label="Error Handling in Automation" color="#DCE775" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N3 [label="Automated Data Validation" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N4 [label="Data Entry Automation" color="#4FC3F7" fillcolor="#E1F5FE" shape=document style=filled]
+	N5 [label="HR Process Automation" color="#DCE775" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N6 [label="Hyperautomation" color="#DCE775" fillcolor="#F9FBE7" shape=diamond style=filled]
+	N7 [label="Scalability of Automation" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N8 [label="Intelligent Automation" color="#AB47BC" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N9 [label="Automation Opportunity Identification" color="#DCE775" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N10 [label="Robotic Process Automation Implementation" color="#DCE775" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N11 [label="Low_Code or No_Code Automation" color="#4FC3F7" fillcolor="#E1F5FE" shape=hexagon style=filled]
+	S0 [label="" color="#DCE775" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#AB47BC" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#AB47BC" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Optical Character Recognition for Automation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Optical Character Recognition for Automation"
+		nest0_0 [label="Natural Language Processing for Automation" color="#4FC3F7" fillcolor="#E1F5FE" shape=vnode_shape style=filled]
+		nest0_1 [label="Finance Process Automation" color="#DCE775" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Process Mining {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Process Mining"
+		nest1_0 [label="Chatbot Integration" color="#AB47BC" fillcolor="#F3E5F5" shape=rectangle style=filled]
+		nest1_1 [label="IT Operations Automation" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+		nest1_2 [label="Document Processing Automation" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+		nest1_3 [label="Security for Automation Bots" color="#DCE775" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#AB47BC" penwidth=1.5 style=dashed label="improves_accuracy" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#DCE775" penwidth=1.5 style=dashed label="accelerates_operations" dir=forward]
+	N9 -> N10 [color="#4FC3F7" penwidth=1.5 style=dashed label="upgrades" dir=forward]
+	N10 -> N11 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N7 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest1_0 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N1 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N4 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_353.dot b/test/diagrams/scanned_easy/diagrams_353.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7dd05815fc25cc188b600ecd8b399a72be82022b
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_353.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=LR
+	N0 [label="Root Cause Analysis" color="#A2D0FF" fillcolor="#E8F0FF" shape=diamond style=filled]
+	N1 [label="Non_Destructive Testing" color="#03A9F4" fillcolor="#B3E5FC" shape=hexagon style=filled]
+	N2 [label="Supplier Audits" color="#FFF9AE" fillcolor="#FFFCE6" shape=multipledocuments style=filled]
+	N3 [label="Quality Management Systems" color="#FFF9AE" fillcolor="#FFFCE6" shape=rect style=filled]
+	N4 [label="Automated Optical Inspection" color="#03A9F4" fillcolor="#B3E5FC" shape=parallelogram style=filled]
+	N5 [label="Hardware Quality Testing" color="#03A9F4" fillcolor="#B3E5FC" shape=database style=filled]
+	N6 [label="Component Inspection" color="#FFF9AE" fillcolor="#FFFCE6" shape=multipledocuments style=filled]
+	N7 [label="Product Testing" color="#A2D0FF" fillcolor="#E8F0FF" shape=hexagon style=filled]
+	N8 [label="Quality Standards Development" color="#03A9F4" fillcolor="#B3E5FC" shape=vnode_shape style=filled]
+	N9 [label="Testing Methods" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	N10 [label="Supplier Quality Management" color="#03A9F4" fillcolor="#B3E5FC" shape=inputoutput style=filled]
+	N11 [label="Pharmaceutical Quality Control" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N12 [label="Six Sigma Methodologies" color="#FFF9AE" fillcolor="#FFFCE6" shape=hexagon style=filled]
+	N13 [label="Quality Planning" color="#FFF9AE" fillcolor="#FFFCE6" shape=inputoutput style=filled]
+	N14 [label="Statistical Process Control" color="#FFF9AE" fillcolor="#FFFCE6" shape=vnode_shape style=filled]
+	N15 [label="Food Safety Quality Control" color="#03A9F4" fillcolor="#B3E5FC" shape=action style=filled]
+	S0 [label="" color="#03A9F4" fillcolor="#B3E5FC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#03A9F4" fillcolor="#B3E5FC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFF9AE" fillcolor="#FFFCE6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#03A9F4" fillcolor="#B3E5FC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FFF9AE" fillcolor="#FFFCE6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Quality Assurance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Quality Assurance"
+		nest0_0 [label="Risk_Based Quality Control" color="#03A9F4" fillcolor="#B3E5FC" shape=hexagon style=filled]
+		nest0_1 [label="Service Quality Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=action style=filled]
+	}
+	subgraph cluster_Trend Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Trend Analysis"
+		nest1_0 [label="Defect Detection" color="#FFF9AE" fillcolor="#FFFCE6" shape=parallelogram style=filled]
+		nest1_1 [label="Measurement System Analysis" color="#03A9F4" fillcolor="#B3E5FC" shape=parallelogram style=filled]
+		nest1_2 [label="Lean Principles in Quality" color="#FFF9AE" fillcolor="#FFFCE6" shape=rectangle style=filled]
+		nest1_3 [label="Customer Feedback Analysis" color="#A2D0FF" fillcolor="#E8F0FF" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="products_evaluates" dir=forward]
+	N4 -> N5 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#03A9F4" penwidth=1.5 style=solid label="systems_controls" dir=forward]
+	N14 -> N15 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFF9AE" penwidth=1.5 style=solid label="collaborates" dir=forward]
+	N9 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N8 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N10 [color="#03A9F4" penwidth=1.5 style=solid label="analyzes_data" dir=forward]
+	N11 -> S0 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N10 -> S1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N9 -> M1 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N15 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N8 -> M2 [color="#03A9F4" penwidth=1.5 style=solid label="software_implements" dir=forward]
+	N10 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M2 -> N15 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_354.dot b/test/diagrams/scanned_easy/diagrams_354.dot
new file mode 100644
index 0000000000000000000000000000000000000000..35d4b3e1db5b531d438c80cca0f84aa25e365ca3
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_354.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=RL
+	N0 [label="System Configuration" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N1 [label="Inventory Management" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N2 [label="ERP System Selection" color="#F06292" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+	N3 [label="Business Process Re_engineering" color="#9575CD" fillcolor="#EDE7F6" shape=database style=filled]
+	N4 [label="Customization" color="#9575CD" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	N5 [label="Post_Go_Live Support" color="#673AB7" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N6 [label="Integration with Other Systems" color="#F06292" fillcolor="#FCE4EC" shape=action style=filled]
+	N7 [label="Vendor Management" color="#9575CD" fillcolor="#EDE7F6" shape=diamond style=filled]
+	N8 [label="Sales and Distribution" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N9 [label="Mobile ERP Access" color="#F06292" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+	N10 [label="Human Capital Management" color="#F06292" fillcolor="#FCE4EC" shape=action style=filled]
+	N11 [label="System Upgrade" color="#F06292" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	N12 [label="Implementation Roadmap Development" color="#673AB7" fillcolor="#D1C4E9" shape=database style=filled]
+	N13 [label="ERP Consulting" color="#9575CD" fillcolor="#EDE7F6" shape=action style=filled]
+	N14 [label="Master Data Management" color="#673AB7" fillcolor="#D1C4E9" shape=rect style=filled]
+	N15 [label="Manufacturing Operations" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	S0 [label="" color="#F06292" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#9575CD" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#F06292" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_User Access Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="User Access Management"
+		nest0_0 [label="Testing ERP Modules" color="#F06292" fillcolor="#FCE4EC" shape=hexagon style=filled]
+		nest0_1 [label="Workflow Automation in ERP" color="#673AB7" fillcolor="#D1C4E9" shape=action style=filled]
+		nest0_2 [label="Data Migration" color="#F06292" fillcolor="#FCE4EC" shape=rectangle style=filled]
+		nest0_3 [label="Financial Management" color="#9575CD" fillcolor="#EDE7F6" shape=preparation style=filled]
+	}
+	subgraph cluster_Procurement Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Procurement Management"
+		nest1_0 [label="User Acceptance Testing" color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+		nest1_1 [label="Reporting and Analytics" color="#F06292" fillcolor="#FCE4EC" shape=rect style=filled]
+		nest1_2 [label="Compliance Reporting" color="#F06292" fillcolor="#FCE4EC" shape=database style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#673AB7" penwidth=1.5 style=dashed label="sales_manages" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N8 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N5 [color="#F06292" penwidth=1.5 style=dashed label="cloud_deploys" dir=forward]
+	N11 -> S0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#673AB7" penwidth=1.5 style=solid label="secures" dir=forward]
+	N7 -> S1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N6 -> M2 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M2 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N10 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_355.dot b/test/diagrams/scanned_easy/diagrams_355.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cbea2baac868637b34cfa45db81e9ec5a42c730e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_355.dot
@@ -0,0 +1,63 @@
+digraph {
+	rankdir=BT
+	N0 [label="Data Security in Agriculture" color="#A1D7CD" fillcolor="#EDF5F3" shape=predefinedprocess style=filled]
+	N1 [label="Satellite Imaging" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N2 [label="Farm Data Integration" color="#FFC2C2" fillcolor="#FFEBEB" shape=hexagon style=filled]
+	N3 [label="Yield Mapping" color="#FFC2C2" fillcolor="#FFEBEB" shape=rect style=filled]
+	N4 [label="Smart Livestock Monitoring" color="#FFC2C2" fillcolor="#FFEBEB" shape=database style=filled]
+	N5 [label="Aquaculture Monitoring" color="#FFC2C2" fillcolor="#FFEBEB" shape=rect style=filled]
+	N6 [label="Farm Labor Management Software" color="#795548" fillcolor="#D7CCC8" shape=ellipse style=filled]
+	N7 [label="Market Price Forecasting" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N8 [label="Crop Health Monitoring" color="#A1D7CD" fillcolor="#EDF5F3" shape=box style=filled]
+	N9 [label="Farm Robotics" color="#FFC2C2" fillcolor="#FFEBEB" shape=database style=filled]
+	N10 [label="Farm Management Dashboards" color="#795548" fillcolor="#D7CCC8" shape=diamond style=filled]
+	N11 [label="Sustainability Metrics Tracking" color="#795548" fillcolor="#D7CCC8" shape=predefinedprocess style=filled]
+	S0 [label="" color="#795548" fillcolor="#D7CCC8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#795548" fillcolor="#D7CCC8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFC2C2" fillcolor="#FFEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Decision Support Systems for Farmers {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Decision Support Systems for Farmers"
+		nest0_0 [label="Farm Management Software" color="#A1D7CD" fillcolor="#EDF5F3" shape=multipledocuments style=filled]
+		nest0_1 [label="Livestock Feeding Automation" color="#A1D7CD" fillcolor="#EDF5F3" shape=box style=filled]
+		nest0_2 [label="Sensor Deployment" color="#FFC2C2" fillcolor="#FFEBEB" shape=preparation style=filled]
+	}
+	subgraph cluster_Forestry Management with Digital Tools {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Forestry Management with Digital Tools"
+		nest1_0 [label="Supply Chain Traceability" color="#795548" fillcolor="#D7CCC8" shape=hexagon style=filled]
+		nest1_1 [label="Herd Health Monitoring" color="#795548" fillcolor="#D7CCC8" shape=box style=filled]
+		nest1_2 [label="Automated Irrigation" color="#A1D7CD" fillcolor="#EDF5F3" shape=document style=filled]
+	}
+	N0 -> N1 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#A1D7CD" penwidth=1.5 style=dashed label="sprays" dir=forward]
+	N9 -> N10 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed label="reports" dir=forward]
+	nest1_2 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S1 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N7 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N9 [color="#795548" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_357.dot b/test/diagrams/scanned_easy/diagrams_357.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0a7e42bb1a6f5bf053687d37929e433b79518ddc
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_357.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=TB
+	N0 [label="Spike Train Analysis" color="#DCE775" fillcolor="#FCFCE7" shape=action style=filled]
+	N1 [label="Neurodegenerative Disease Research" color="#BCB88A" fillcolor="#F5F5DC" shape=multipledocuments style=filled]
+	N2 [label="Molecular Neuroscience" color="#BCB88A" fillcolor="#F5F5DC" shape=hexagon style=filled]
+	N3 [label="Aging Brain Research" color="#DCE775" fillcolor="#FCFCE7" shape=rect style=filled]
+	N4 [label="Transcranial Magnetic Stimulation" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+	N5 [label="Sensory Perception Research" color="#BCB88A" fillcolor="#F5F5DC" shape=database style=filled]
+	N6 [label="Neuroprosthetics" color="#DCE775" fillcolor="#FCFCE7" shape=inputoutput style=filled]
+	N7 [label="Brain Imaging" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N8 [label="Synaptic Plasticity Study" color="#DCE775" fillcolor="#FCFCE7" shape=rect style=filled]
+	N9 [label="Neurotransmitter Research" color="#DCE775" fillcolor="#FCFCE7" shape=database style=filled]
+	N10 [label="Optogenetics" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N11 [label="Artificial Neural Networks Modeling" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N12 [label="Brain_Computer Interface" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+	N13 [label="Genetic Basis of Brain Disorders" color="#FF5722" fillcolor="#FFCCBC" shape=preparation style=filled]
+	N14 [label="Brain Mapping" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N15 [label="Systems Neuroscience" color="#FF5722" fillcolor="#FFCCBC" shape=rect style=filled]
+	N16 [label="Computational Neuroscience" color="#DCE775" fillcolor="#FCFCE7" shape=vnode_shape style=filled]
+	N17 [label="Behavioral Neuroscience" color="#BCB88A" fillcolor="#F5F5DC" shape=diamond style=filled]
+	N18 [label="Motor Control Research" color="#FF5722" fillcolor="#FFCCBC" shape=rectangle style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#DCE775" fillcolor="#FCFCE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Neurofeedback Therapy {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Neurofeedback Therapy"
+		nest0_0 [label="Neural Network Analysis" color="#FF5722" fillcolor="#FFCCBC" shape=predefinedprocess style=filled]
+		nest0_1 [label="Memory Formation Research" color="#FF5722" fillcolor="#FFCCBC" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Drug Development for Brain Disorders {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Drug Development for Brain Disorders"
+		nest1_0 [label="Stem Cell Research" color="#BCB88A" fillcolor="#F5F5DC" shape=inputoutput style=filled]
+		nest1_1 [label="Cellular Neuroscience" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram style=filled]
+		nest1_2 [label="Consciousness Studies" color="#FF5722" fillcolor="#FFCCBC" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#DCE775" penwidth=1.5 style=solid label="processes_data" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#BCB88A" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N17 -> N18 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_0 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest1_0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N8 [color="#BCB88A" penwidth=1.5 style=solid label="diseases_diagnoses" dir=forward]
+	N8 -> S0 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N16 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> S1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N16 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N18 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N10 -> M0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_357.txt b/test/diagrams/scanned_easy/diagrams_357.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7212acffd88926dc1df2e435daba9c81dc190d48
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_357.txt
@@ -0,0 +1,34 @@
+<Aging Brain Research, connectedTo, Transcranial Magnetic Stimulation>
+<Artificial Neural Networks Modeling, connectedTo, Brain_Computer Interface>
+<Behavioral Neuroscience, connectedTo, Motor Control Research>
+<Brain Imaging, connectedTo, Neural Network Analysis>
+<Brain Imaging, connectedTo, Synaptic Plasticity Study>
+<Brain Mapping, connectedTo, Systems Neuroscience>
+<Brain_Computer Interface, connectedTo, Genetic Basis of Brain Disorders>
+<Cellular Neuroscience, connectedTo, Consciousness Studies>
+<Computational Neuroscience, connectedTo, Behavioral Neuroscience>
+<Consciousness Studies, diseases_diagnoses, Synaptic Plasticity Study>
+<Genetic Basis of Brain Disorders, connectedTo, Brain Mapping>
+<Genetic Basis of Brain Disorders, connectedTo, Computational Neuroscience>
+<Genetic Basis of Brain Disorders, connectedTo, Motor Control Research>
+<Memory Formation Research, connectedTo, Brain_Computer Interface>
+<Molecular Neuroscience, connectedTo, Aging Brain Research>
+<Neural Network Analysis, connectedTo, Memory Formation Research>
+<Neurodegenerative Disease Research, connectedTo, Aging Brain Research>
+<Neurodegenerative Disease Research, connectedTo, Brain_Computer Interface>
+<Neurodegenerative Disease Research, connectedTo, Molecular Neuroscience>
+<Neuroprosthetics, connectedTo, Brain Imaging>
+<Neurotransmitter Research, connectedTo, Optogenetics>
+<Optogenetics, connectedTo, Artificial Neural Networks Modeling>
+<Optogenetics, connectedTo, Brain_Computer Interface>
+<Sensory Perception Research, processes_data, Neuroprosthetics>
+<Spike Train Analysis, connectedTo, Aging Brain Research>
+<Spike Train Analysis, connectedTo, Neurodegenerative Disease Research>
+<Stem Cell Research, connectedTo, Cellular Neuroscience>
+<Synaptic Plasticity Study, analyzes, Neurotransmitter Research>
+<Synaptic Plasticity Study, connectedTo, Artificial Neural Networks Modeling>
+<Synaptic Plasticity Study, connectedTo, Brain_Computer Interface>
+<Synaptic Plasticity Study, connectedTo, Computational Neuroscience>
+<Systems Neuroscience, connectedTo, Computational Neuroscience>
+<Transcranial Magnetic Stimulation, connectedTo, Sensory Perception Research>
+<Transcranial Magnetic Stimulation, connectedTo, Stem Cell Research>
diff --git a/test/diagrams/scanned_easy/diagrams_358.dot b/test/diagrams/scanned_easy/diagrams_358.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8b4453a3696e5a648b7f8bcc0bd22f09722e149d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_358.dot
@@ -0,0 +1,86 @@
+digraph {
+	rankdir=LR
+	N0 [label="Conservation Science" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N1 [label="Community Engagement" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	N2 [label="Repatriation of Artifacts" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N3 [label="Heritage Impact Assessment" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N4 [label="Augmented Reality Tours" color="#F44336" fillcolor="#FFCDD2" shape=action style=filled]
+	N5 [label="Photogrammetry for Documentation" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	N6 [label="Material Analysis" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	N7 [label="Digital Storytelling" color="#F44336" fillcolor="#FFCDD2" shape=multipledocuments style=filled]
+	N8 [label="Underwater Cultural Heritage" color="#F44336" fillcolor="#FFCDD2" shape=multipledocuments style=filled]
+	N9 [label="Indigenous Cultural Heritage Rights" color="#F44336" fillcolor="#FFCDD2" shape=hexagon style=filled]
+	N10 [label="Remote Sensing for Heritage" color="#F44336" fillcolor="#FFCDD2" shape=diamond style=filled]
+	N11 [label="Crowdsourcing for Heritage Data" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N12 [label="Illicit Trafficking Control" color="#F44336" fillcolor="#FFCDD2" shape=document style=filled]
+	N13 [label="Dating Techniques" color="#F44336" fillcolor="#FFCDD2" shape=diamond style=filled]
+	N14 [label="Archaeological Excavation" color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N15 [label="Virtual Reality Recreations" color="#F44336" fillcolor="#FFCDD2" shape=diamond style=filled]
+	N16 [label="Cultural Tourism Development" color="#FF8A65" fillcolor="#FBE9E7" shape=diamond style=filled]
+	N17 [label="Looting Prevention" color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N18 [label="Artifact Conservation" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+	S0 [label="" color="#F44336" fillcolor="#FFCDD2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#F44336" fillcolor="#FFCDD2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#F44336" fillcolor="#FFCDD2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#F44336" fillcolor="#FFCDD2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FF8A65" fillcolor="#FBE9E7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Public Education Programs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Public Education Programs"
+		nest0_0 [label="Disaster Preparedness for Heritage" color="#FF8A65" fillcolor="#FBE9E7" shape=document style=filled]
+		nest0_1 [label="Legal Protection for Heritage" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	}
+	subgraph cluster_Exhibition Curation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Exhibition Curation"
+		nest1_0 [label="3D Scanning of Artifacts" color="#673AB7" fillcolor="#D1C4E9" shape=rectangle style=filled]
+		nest1_1 [label="Historical Research" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+		nest1_2 [label="Adaptive Reuse of Heritage Buildings" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	}
+	N0 -> N1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#FF8A65" penwidth=1.5 style=dashed label="conserves" dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N17 -> N18 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#673AB7" penwidth=1.5 style=solid label="3D_scans" dir=forward]
+	N3 -> nest0_0 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N13 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#F44336" penwidth=1.5 style=solid label="catalogs" dir=forward]
+	nest1_1 -> nest1_2 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N17 -> nest1_0 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N8 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N8 -> S0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N13 -> S1 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	S1 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N17 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	S1 -> N18 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> S2 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	S2 -> N17 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N14 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N7 -> M0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> M0 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N12 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N7 -> M2 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N12 -> M2 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N13 -> M2 [color="#F44336" penwidth=1.5 style=solid label="promotes" dir=forward]
+	M2 -> N15 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_358.txt b/test/diagrams/scanned_easy/diagrams_358.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ddbaabcfdcda7615664fcb56e6380f51080d57ab
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_358.txt
@@ -0,0 +1,39 @@
+<3D Scanning of Artifacts, catalogs, Historical Research>
+<Adaptive Reuse of Heritage Buildings, connectedTo, Underwater Cultural Heritage>
+<Archaeological Excavation, connectedTo, Virtual Reality Recreations>
+<Augmented Reality Tours, connectedTo, Photogrammetry for Documentation>
+<Community Engagement, connectedTo, Repatriation of Artifacts>
+<Conservation Science, connectedTo, Community Engagement>
+<Crowdsourcing for Heritage Data, connectedTo, Illicit Trafficking Control>
+<Cultural Tourism Development, connectedTo, Looting Prevention>
+<Dating Techniques, connectedTo, Archaeological Excavation>
+<Dating Techniques, connectedTo, Artifact Conservation>
+<Dating Techniques, connectedTo, Cultural Tourism Development>
+<Dating Techniques, connectedTo, Looting Prevention>
+<Dating Techniques, promotes, Virtual Reality Recreations>
+<Digital Storytelling, connectedTo, Illicit Trafficking Control>
+<Digital Storytelling, connectedTo, Underwater Cultural Heritage>
+<Digital Storytelling, connectedTo, Virtual Reality Recreations>
+<Disaster Preparedness for Heritage, 3D_scans, Legal Protection for Heritage>
+<Heritage Impact Assessment, connectedTo, Augmented Reality Tours>
+<Heritage Impact Assessment, connectedTo, Disaster Preparedness for Heritage>
+<Heritage Impact Assessment, connectedTo, Virtual Reality Recreations>
+<Historical Research, connectedTo, Adaptive Reuse of Heritage Buildings>
+<Illicit Trafficking Control, connectedTo, Virtual Reality Recreations>
+<Illicit Trafficking Control, conserves, Dating Techniques>
+<Indigenous Cultural Heritage Rights, connectedTo, Illicit Trafficking Control>
+<Indigenous Cultural Heritage Rights, connectedTo, Remote Sensing for Heritage>
+<Legal Protection for Heritage, connectedTo, Dating Techniques>
+<Looting Prevention, connectedTo, 3D Scanning of Artifacts>
+<Looting Prevention, connectedTo, Artifact Conservation>
+<Material Analysis, connectedTo, Digital Storytelling>
+<Photogrammetry for Documentation, connectedTo, Material Analysis>
+<Remote Sensing for Heritage, connectedTo, Archaeological Excavation>
+<Remote Sensing for Heritage, connectedTo, Crowdsourcing for Heritage Data>
+<Remote Sensing for Heritage, connectedTo, Looting Prevention>
+<Repatriation of Artifacts, connectedTo, Heritage Impact Assessment>
+<Repatriation of Artifacts, connectedTo, Illicit Trafficking Control>
+<Underwater Cultural Heritage, connectedTo, Dating Techniques>
+<Underwater Cultural Heritage, connectedTo, Indigenous Cultural Heritage Rights>
+<Underwater Cultural Heritage, connectedTo, Remote Sensing for Heritage>
+<Virtual Reality Recreations, connectedTo, Cultural Tourism Development>
diff --git a/test/diagrams/scanned_easy/diagrams_359.dot b/test/diagrams/scanned_easy/diagrams_359.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f37acb2af1e47396463c00a0bb84f4fdf0d29203
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_359.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=LR
+	N0 [label="Bioremediation Applications" color="#BDBDBD" fillcolor="#F5F5F5" shape=multipledocuments style=filled]
+	N1 [label="Genome Engineering" color="#DCE775" fillcolor="#FCFCE7" shape=rect style=filled]
+	N2 [label="Risk Assessment" color="#A188D0" fillcolor="#DACBE3" shape=rectangle style=filled]
+	N3 [label="Synthetic Organism Design" color="#DCE775" fillcolor="#FCFCE7" shape=predefinedprocess style=filled]
+	N4 [label="Regulatory Frameworks" color="#A188D0" fillcolor="#DACBE3" shape=rect style=filled]
+	N5 [label="Biosafety Level Management" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	N6 [label="Novel Enzyme Creation" color="#BDBDBD" fillcolor="#F5F5F5" shape=inputoutput style=filled]
+	N7 [label="Diagnostic Tool Development" color="#BDBDBD" fillcolor="#F5F5F5" shape=multipledocuments style=filled]
+	N8 [label="Directed Evolution Automation" color="#DCE775" fillcolor="#FCFCE7" shape=database style=filled]
+	N9 [label="DNA Storage Technologies" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+	N10 [label="Genetic Circuit Design" color="#BDBDBD" fillcolor="#F5F5F5" shape=parallelogram style=filled]
+	N11 [label="Biocontainment Strategies" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+	N12 [label="CRISPR_Cas System Optimization" color="#A188D0" fillcolor="#DACBE3" shape=database style=filled]
+	N13 [label="Directed Evolution" color="#BDBDBD" fillcolor="#F5F5F5" shape=diamond style=filled]
+	N14 [label="Cell_Free Systems" color="#BDBDBD" fillcolor="#F5F5F5" shape=rect style=filled]
+	N15 [label="Biofuel Production" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	S0 [label="" color="#A188D0" fillcolor="#DACBE3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#BDBDBD" fillcolor="#F5F5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#BDBDBD" fillcolor="#F5F5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#DCE775" fillcolor="#FCFCE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Public Engagement {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Public Engagement"
+		nest0_0 [label="Synthetic Gene Networks" color="#BDBDBD" fillcolor="#F5F5F5" shape=diamond style=filled]
+		nest0_1 [label="Bio_logic Gates" color="#DCE775" fillcolor="#FCFCE7" shape=inputoutput style=filled]
+		nest0_2 [label="DNA Synthesis" color="#BDBDBD" fillcolor="#F5F5F5" shape=predefinedprocess style=filled]
+		nest0_3 [label="Computational Design of Biological Systems" color="#A188D0" fillcolor="#DACBE3" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Cellular Reprogramming {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cellular Reprogramming"
+		nest1_0 [label="Gene Synthesis Platforms" color="#DCE775" fillcolor="#FCFCE7" shape=diamond style=filled]
+		nest1_1 [label="High_Throughput Screening" color="#BDBDBD" fillcolor="#F5F5F5" shape=rect style=filled]
+		nest1_2 [label="Drug Delivery Systems" color="#A188D0" fillcolor="#DACBE3" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed label="diagnostics_creates" dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N3 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#A188D0" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	nest1_1 -> nest1_2 [color="#A188D0" penwidth=1.5 style=solid label="clones" dir=forward]
+	N12 -> nest1_0 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N14 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed label="simulates" dir=forward]
+	S0 -> N15 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#DCE775" penwidth=1.5 style=solid label="organisms_creates" dir=forward]
+	M0 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#DCE775" penwidth=1.5 style=solid label="manipulates" dir=forward]
+	N3 -> M1 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N10 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_359.txt b/test/diagrams/scanned_easy/diagrams_359.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5152b68560e3f1329eede0566a8c8c2c0d00e120
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_359.txt
@@ -0,0 +1,33 @@
+<Bio_logic Gates, diagnostics_creates, DNA Synthesis>
+<Biocontainment Strategies, connectedTo, CRISPR_Cas System Optimization>
+<Bioremediation Applications, connectedTo, Genome Engineering>
+<Biosafety Level Management, connectedTo, Novel Enzyme Creation>
+<Biosafety Level Management, organisms_creates, Biofuel Production>
+<CRISPR_Cas System Optimization, connectedTo, Directed Evolution>
+<CRISPR_Cas System Optimization, connectedTo, Gene Synthesis Platforms>
+<Cell_Free Systems, connectedTo, Biofuel Production>
+<Computational Design of Biological Systems, connectedTo, Synthetic Organism Design>
+<DNA Storage Technologies, connectedTo, Genetic Circuit Design>
+<DNA Synthesis, connectedTo, Computational Design of Biological Systems>
+<Diagnostic Tool Development, connectedTo, Biofuel Production>
+<Diagnostic Tool Development, connectedTo, Directed Evolution Automation>
+<Directed Evolution, connectedTo, Cell_Free Systems>
+<Directed Evolution Automation, connectedTo, DNA Storage Technologies>
+<Drug Delivery Systems, connectedTo, Cell_Free Systems>
+<Gene Synthesis Platforms, analyzes, High_Throughput Screening>
+<Genetic Circuit Design, connectedTo, Biocontainment Strategies>
+<Genome Engineering, connectedTo, Risk Assessment>
+<Genome Engineering, manipulates, Genetic Circuit Design>
+<High_Throughput Screening, clones, Drug Delivery Systems>
+<Novel Enzyme Creation, connectedTo, Cell_Free Systems>
+<Novel Enzyme Creation, connectedTo, Diagnostic Tool Development>
+<Novel Enzyme Creation, connectedTo, Directed Evolution Automation>
+<Regulatory Frameworks, connectedTo, Biosafety Level Management>
+<Regulatory Frameworks, connectedTo, Synthetic Gene Networks>
+<Risk Assessment, connectedTo, Biofuel Production>
+<Risk Assessment, connectedTo, Novel Enzyme Creation>
+<Risk Assessment, connectedTo, Synthetic Organism Design>
+<Risk Assessment, simulates, DNA Storage Technologies>
+<Synthetic Gene Networks, connectedTo, Bio_logic Gates>
+<Synthetic Organism Design, connectedTo, Genetic Circuit Design>
+<Synthetic Organism Design, connectedTo, Regulatory Frameworks>
diff --git a/test/diagrams/scanned_easy/diagrams_360.dot b/test/diagrams/scanned_easy/diagrams_360.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4bb73e50c6d1654e68ee8ab9b737b83f97e49a05
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_360.dot
@@ -0,0 +1,92 @@
+digraph {
+	rankdir=LR
+	N0 [label="Learning Design Principles" color="#6FE1D5" fillcolor="#C9EFEC" shape=inputoutput style=filled]
+	N1 [label="Remote Learning Solutions" color="#6FE1D5" fillcolor="#C9EFEC" shape=preparation style=filled]
+	N2 [label="Accessibility in EdTech" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	N3 [label="Learning Management System Development" color="#FFCC7A" fillcolor="#FFF6D9" shape=multipledocuments style=filled]
+	N4 [label="Teacher Training Platforms" color="#6FE1D5" fillcolor="#C9EFEC" shape=document style=filled]
+	N5 [label="Curriculum Digitization" color="#A188D0" fillcolor="#DACBE3" shape=action style=filled]
+	N6 [label="Educational Data Mining" color="#6FE1D5" fillcolor="#C9EFEC" shape=database style=filled]
+	N7 [label="Digital Textbooks" color="#A188D0" fillcolor="#DACBE3" shape=inputoutput style=filled]
+	N8 [label="Personalized Learning Paths" color="#6FE1D5" fillcolor="#C9EFEC" shape=diamond style=filled]
+	N9 [label="Badging and Certification Systems" color="#6FE1D5" fillcolor="#C9EFEC" shape=multipledocuments style=filled]
+	N10 [label="Formative Assessment Tools" color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+	N11 [label="Interactive Content Creation" color="#FFCC7A" fillcolor="#FFF6D9" shape=rect style=filled]
+	N12 [label="Open Educational Resources" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	N13 [label="Student Performance Tracking" color="#6FE1D5" fillcolor="#C9EFEC" shape=action style=filled]
+	N14 [label="Educational Apps Development" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N15 [label="Simulations for Learning" color="#FFCC7A" fillcolor="#FFF6D9" shape=inputoutput style=filled]
+	S0 [label="" color="#A188D0" fillcolor="#DACBE3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#A188D0" fillcolor="#DACBE3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#6FE1D5" fillcolor="#C9EFEC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFCC7A" fillcolor="#FFF6D9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFCC7A" fillcolor="#FFF6D9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#6FE1D5" fillcolor="#C9EFEC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_AI in Education {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="AI in Education"
+		nest0_0 [label="Professional Development for Educators" color="#6FE1D5" fillcolor="#C9EFEC" shape=database style=filled]
+		nest0_1 [label="Collaborative Learning Platforms" color="#6FE1D5" fillcolor="#C9EFEC" shape=inputoutput style=filled]
+		nest0_2 [label="Assessment Tools" color="#A188D0" fillcolor="#DACBE3" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Virtual Reality in Education {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Virtual Reality in Education"
+		nest1_0 [label="Social_Emotional Learning Tools" color="#A188D0" fillcolor="#DACBE3" shape=action style=filled]
+		nest1_1 [label="Blockchain for Educational Credentials" color="#A188D0" fillcolor="#DACBE3" shape=rect style=filled]
+		nest1_2 [label="Competency_Based Learning Platforms" color="#6FE1D5" fillcolor="#C9EFEC" shape=multipledocuments style=filled]
+		nest1_3 [label="Machine Learning for Learning Analytics" color="#A188D0" fillcolor="#DACBE3" shape=database style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#6FE1D5" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N2 -> N3 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#6FE1D5" penwidth=1.5 style=solid label="assesses" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest0_0 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N11 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest1_0 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N3 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#A188D0" penwidth=1.5 style=solid label="adaptive_learning_enables" dir=forward]
+	N11 -> S1 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S2 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N5 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> M2 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M2 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N3 -> M2 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N10 -> M2 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N12 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_37.dot b/test/diagrams/scanned_easy/diagrams_37.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1c5361b7f856a120469fb59e58b69fb53cd339ab
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_37.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=BT
+	N0 [label="Mine Closure Planning" color="#03A9F4" fillcolor="#B3E5FC" shape=document style=filled]
+	N1 [label="Environmental Impact Assessment" color="#FFCC80" fillcolor="#FFF0CC" shape=preparation style=filled]
+	N2 [label="Feasibility Study" color="#C2B2F0" fillcolor="#EFE6FF" shape=rectangle style=filled]
+	N3 [label="Waste Rock Management" color="#C2B2F0" fillcolor="#EFE6FF" shape=diamond style=filled]
+	N4 [label="Asset Management" color="#FFCC80" fillcolor="#FFF0CC" shape=action style=filled]
+	N5 [label="Ore Sorting" color="#C2B2F0" fillcolor="#EFE6FF" shape=predefinedprocess style=filled]
+	N6 [label="Permit Acquisition" color="#C2B2F0" fillcolor="#EFE6FF" shape=preparation style=filled]
+	N7 [label="Mine Planning" color="#C2B2F0" fillcolor="#EFE6FF" shape=ellipse style=filled]
+	N8 [label="Resource Estimation" color="#C2B2F0" fillcolor="#EFE6FF" shape=database style=filled]
+	N9 [label="Mine Dewatering" color="#C2B2F0" fillcolor="#EFE6FF" shape=database style=filled]
+	N0 -> N1 [color="#C2B2F0" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N1 -> N2 [color="#C2B2F0" penwidth=1.5 style=dashed label="grinds" dir=forward]
+	N2 -> N3 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="funds" dir=forward]
+	N5 -> N6 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#03A9F4" penwidth=1.5 style=dashed label="plans" dir=forward]
+	N7 -> N8 [color="#03A9F4" penwidth=1.5 style=dashed label="invests" dir=forward]
+	N8 -> N9 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N3 -> N9 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N1 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_37.txt b/test/diagrams/scanned_easy/diagrams_37.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3ce4871b6136012b50ffae22bebf3822360e0668
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_37.txt
@@ -0,0 +1,11 @@
+<Asset Management, funds, Ore Sorting>
+<Environmental Impact Assessment, grinds, Feasibility Study>
+<Feasibility Study, connectedTo, Waste Rock Management>
+<Mine Closure Planning, reports, Environmental Impact Assessment>
+<Mine Planning, invests, Resource Estimation>
+<Ore Sorting, connectedTo, Permit Acquisition>
+<Permit Acquisition, plans, Mine Planning>
+<Resource Estimation, connectedTo, Mine Dewatering>
+<Waste Rock Management, connectedTo, Asset Management>
+<Waste Rock Management, connectedTo, Environmental Impact Assessment>
+<Waste Rock Management, connectedTo, Mine Dewatering>
diff --git a/test/diagrams/scanned_easy/diagrams_38.txt b/test/diagrams/scanned_easy/diagrams_38.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c308fe98a499085f2e847c887851f01821b9e5c7
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_38.txt
@@ -0,0 +1,12 @@
+<Customs Clearance, connectedTo, Pilotage>
+<Dry Docking, connectedTo, Fleet Management>
+<Fleet Management, connectedTo, Vessel Chartering>
+<Fuel Consumption Optimization, connectedTo, Terminal Management>
+<Fuel Consumption Optimization, forecasts, Dry Docking>
+<Hydrographic Surveying, docks, Terminal Management>
+<Offshore Operations, operates, Customs Clearance>
+<Pilotage, regulates, Fuel Consumption Optimization>
+<Port Congestion Management, connectedTo, Port Operations>
+<Terminal Management, communicates, Port Congestion Management>
+<Terminal Management, manages, Port Operations>
+<Vessel Chartering, connectedTo, Hydrographic Surveying>
diff --git a/test/diagrams/scanned_easy/diagrams_39.dot b/test/diagrams/scanned_easy/diagrams_39.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3de87aba9f690e72dcc21dbc8972f965681f68ea
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_39.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Astrophysics Research" color="#CD8FF2" fillcolor="#ECCFF5" shape=parallelogram style=filled]
+	N1 [label="Rocket Propulsion Development" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N2 [label="Planetary Science Research" color="#CD8FF2" fillcolor="#ECCFF5" shape=document style=filled]
+	N3 [label="Scientific Data Analysis" color="#CD8FF2" fillcolor="#ECCFF5" shape=diamond style=filled]
+	N4 [label="Orbital Mechanics" color="#80DDEA" fillcolor="#D3F7F9" shape=action style=filled]
+	N5 [label="Interplanetary Trajectory Calculation" color="#FF9800" fillcolor="#FFE0B2" shape=multipledocuments style=filled]
+	N6 [label="Deep Space Communications" color="#80DDEA" fillcolor="#D3F7F9" shape=inputoutput style=filled]
+	N7 [label="Space Tourism Development" color="#CD8FF2" fillcolor="#ECCFF5" shape=parallelogram style=filled]
+	N0 -> N1 [color="#CD8FF2" penwidth=1.5 style=dashed label="builds" dir=forward]
+	N1 -> N2 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="predicts" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="designs" dir=forward]
+	N5 -> N6 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N6 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_39.txt b/test/diagrams/scanned_easy/diagrams_39.txt
new file mode 100644
index 0000000000000000000000000000000000000000..063c54d31b604de531d851dc1425c1ec86d69250
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_39.txt
@@ -0,0 +1,8 @@
+<Astrophysics Research, builds, Rocket Propulsion Development>
+<Deep Space Communications, connectedTo, Space Tourism Development>
+<Interplanetary Trajectory Calculation, connectedTo, Deep Space Communications>
+<Orbital Mechanics, designs, Interplanetary Trajectory Calculation>
+<Planetary Science Research, predicts, Scientific Data Analysis>
+<Rocket Propulsion Development, connectedTo, Deep Space Communications>
+<Rocket Propulsion Development, connectedTo, Planetary Science Research>
+<Scientific Data Analysis, connectedTo, Orbital Mechanics>
diff --git a/test/diagrams/scanned_easy/diagrams_41.dot b/test/diagrams/scanned_easy/diagrams_41.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b606c51d5b3cdd50c582127baa192e2c5b96334a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_41.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=TB
+	N0 [label="Nowcasting" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+	N1 [label="Aviation Weather Briefing" color="#4DD0E1" fillcolor="#C9F0F0" shape=inputoutput style=filled]
+	N2 [label="Mesoscale Meteorology" color="#F44336" fillcolor="#FFCDD2" shape=preparation style=filled]
+	N3 [label="Precipitation Measurement" color="#4DD0E1" fillcolor="#C9F0F0" shape=box style=filled]
+	N4 [label="Drought Monitoring" color="#F44336" fillcolor="#FFCDD2" shape=predefinedprocess style=filled]
+	N5 [label="Wind Speed and Direction" color="#D2D2D2" fillcolor="#F0F0F0" shape=multipledocuments style=filled]
+	N6 [label="Humidity Sensing" color="#4DD0E1" fillcolor="#C9F0F0" shape=rectangle style=filled]
+	N7 [label="Seasonal Outlook Preparation" color="#4DD0E1" fillcolor="#C9F0F0" shape=hexagon style=filled]
+	N8 [label="Lightning Detection" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+	N9 [label="Storm Tracking" color="#D2D2D2" fillcolor="#F0F0F0" shape=multipledocuments style=filled]
+	N10 [label="Climate Change Impact Study" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+	N11 [label="Temperature Monitoring" color="#F44336" fillcolor="#FFCDD2" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="alerts" dir=forward]
+	N4 -> N5 [color="#F44336" penwidth=1.5 style=dashed label="monitors" dir=forward]
+	N5 -> N6 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#F44336" penwidth=1.5 style=dashed label="distributes" dir=forward]
+	N8 -> N9 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#F44336" penwidth=1.5 style=dashed label="studies" dir=forward]
+	N10 -> N11 [color="#F44336" penwidth=1.5 style=solid label="maps" dir=forward]
+	N4 -> N0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N2 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_42.dot b/test/diagrams/scanned_easy/diagrams_42.dot
new file mode 100644
index 0000000000000000000000000000000000000000..155df87c1110a2aadb5fb504818b4c8a781932df
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_42.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=BT
+	N0 [label="Zero Waste Initiatives" color="#B0C5CD" fillcolor="#DFE7EB" shape=predefinedprocess style=filled]
+	N1 [label="Recycling Processing" color="#B0C5CD" fillcolor="#DFE7EB" shape=hexagon style=filled]
+	N2 [label="Hazardous Waste Disposal" color="#CD8FF2" fillcolor="#ECCFF5" shape=multipledocuments style=filled]
+	N3 [label="Resource Recovery" color="#CD8FF2" fillcolor="#ECCFF5" shape=parallelogram style=filled]
+	N4 [label="Organics Collection" color="#CD8FF2" fillcolor="#ECCFF5" shape=preparation style=filled]
+	N5 [label="Waste Audit" color="#B0C5CD" fillcolor="#DFE7EB" shape=database style=filled]
+	N6 [label="Container Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=hexagon style=filled]
+	N7 [label="Transfer Station Management" color="#B0C5CD" fillcolor="#DFE7EB" shape=predefinedprocess style=filled]
+	N8 [label="Anaerobic Digestion" color="#E57373" fillcolor="#FFEBEE" shape=diamond style=filled]
+	N9 [label="Glass Recycling" color="#CD8FF2" fillcolor="#ECCFF5" shape=document style=filled]
+	N0 -> N1 [color="#B0C5CD" penwidth=1.5 style=dashed label="segregates" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="collects" dir=forward]
+	N2 -> N3 [color="#B0C5CD" penwidth=1.5 style=solid label="minimizes" dir=forward]
+	N3 -> N4 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CD8FF2" penwidth=1.5 style=solid label="transports" dir=forward]
+	N5 -> N6 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="tracks" dir=forward]
+	N5 -> N0 [color="#E57373" penwidth=1.5 style=dashed label="maintains" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_45.dot b/test/diagrams/scanned_easy/diagrams_45.dot
new file mode 100644
index 0000000000000000000000000000000000000000..92e9c1cdfe41233bd113e2a76f43a3c510a49e85
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_45.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=LR
+	N0 [label="Biodiversity Conservation in Forests" color="#8C9EFF" fillcolor="#D3D7EB" shape=diamond style=filled]
+	N1 [label="Forest Fire Management" color="#FBC02D" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	N2 [label="Carbon Sequestration Monitoring" color="#B8C0F5" fillcolor="#ECF0FD" shape=parallelogram style=filled]
+	N3 [label="Forestry Policy Development" color="#FBC02D" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N4 [label="Public Access Management" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N5 [label="Forest Road Construction" color="#B8C0F5" fillcolor="#ECF0FD" shape=action style=filled]
+	N6 [label="Tree Planting" color="#B8C0F5" fillcolor="#ECF0FD" shape=vnode_shape style=filled]
+	N7 [label="Tree Nursery Management" color="#FBC02D" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N8 [label="Erosion Control" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	N0 -> N1 [color="#B8C0F5" penwidth=1.5 style=dashed label="measures" dir=forward]
+	N1 -> N2 [color="#8C9EFF" penwidth=1.5 style=solid label="cultivates" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="prevents" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="regulates" dir=forward]
+	N6 -> N7 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="maps" dir=forward]
+	N2 -> N6 [color="#B8C0F5" penwidth=1.5 style=dashed label="removes" dir=forward]
+	N7 -> N2 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_46.dot b/test/diagrams/scanned_easy/diagrams_46.dot
new file mode 100644
index 0000000000000000000000000000000000000000..96a4fc8a96e0986fd31c31794091bf85b891c885
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_46.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=LR
+	N0 [label="Laboratory Testing" color="#607D8B" fillcolor="#CFD8DC" shape=predefinedprocess style=filled]
+	N1 [label="Medical Treatment" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N2 [label="Euthanasia Services" color="#F44336" fillcolor="#FFCDD2" shape=multipledocuments style=filled]
+	N3 [label="Anesthesia Administration" color="#F44336" fillcolor="#FFCDD2" shape=preparation style=filled]
+	N4 [label="Emergency Vet Services" color="#66BB6A" fillcolor="#E8F5E9" shape=document style=filled]
+	N5 [label="Nutritional Counseling" color="#F44336" fillcolor="#FFCDD2" shape=vnode_shape style=filled]
+	N6 [label="Livestock Disease Prevention" color="#607D8B" fillcolor="#CFD8DC" shape=parallelogram style=filled]
+	N7 [label="Animal Welfare Assessment" color="#607D8B" fillcolor="#CFD8DC" shape=multipledocuments style=filled]
+	N0 -> N1 [color="#607D8B" penwidth=1.5 style=dashed label="prescribes" dir=forward]
+	N1 -> N2 [color="#F44336" penwidth=1.5 style=dashed label="performs" dir=forward]
+	N2 -> N3 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#66BB6A" penwidth=1.5 style=dashed label="anesthetizes" dir=forward]
+	N5 -> N6 [color="#F44336" penwidth=1.5 style=dashed label="manages" dir=forward]
+	N6 -> N7 [color="#66BB6A" penwidth=1.5 style=dashed label="operates" dir=forward]
+	N7 -> N6 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N6 -> N3 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_47.dot b/test/diagrams/scanned_easy/diagrams_47.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a5783f91104baee9c2b4d1b1460c978156422dc6
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_47.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=RL
+	N0 [label="Early Literacy Programs" color="#CD8FF2" fillcolor="#ECCFF5" shape=rectangle style=filled]
+	N1 [label="Infant Care" color="#673AB7" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+	N2 [label="Story Time Reading" color="#673AB7" fillcolor="#D1C4E9" shape=rect style=filled]
+	N3 [label="After_School Programs" color="#CD8FF2" fillcolor="#ECCFF5" shape=rect style=filled]
+	N4 [label="Behavior Management" color="#FBC02D" fillcolor="#FFFDE7" shape=database style=filled]
+	N5 [label="Creative Arts Activities" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N6 [label="First Aid Administration" color="#673AB7" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N7 [label="Child Psychology Application" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N8 [label="Field Trip Organization" color="#CD8FF2" fillcolor="#ECCFF5" shape=hexagon style=filled]
+	N9 [label="Learning Material Selection" color="#673AB7" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N10 [label="Child Development Assessment" color="#673AB7" fillcolor="#D1C4E9" shape=database style=filled]
+	N11 [label="Parent Communication" color="#FBC02D" fillcolor="#FFFDE7" shape=rect style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="inspects" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="reports" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="cleans" dir=forward]
+	N3 -> N4 [color="#673AB7" penwidth=1.5 style=solid label="complies" dir=forward]
+	N4 -> N5 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="nurtures" dir=forward]
+	N6 -> N7 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#CD8FF2" penwidth=1.5 style=solid label="certifies" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed label="accommodates" dir=forward]
+	N10 -> N11 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N8 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N2 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_48.dot b/test/diagrams/scanned_easy/diagrams_48.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bf23f2ba6013cdea68c1565c365aa54c95e02e92
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_48.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=TB
+	N0 [label="Speech Therapy" color="#DCE775" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N1 [label="Smart Home Integration for Seniors" color="#EAEFA5" fillcolor="#FDFCEB" shape=multipledocuments style=filled]
+	N2 [label="Health Monitoring" color="#DCE775" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N3 [label="Physical Therapy" color="#DCE775" fillcolor="#F9FBE7" shape=document style=filled]
+	N4 [label="Rehabilitation Support" color="#DCE775" fillcolor="#F9FBE7" shape=database style=filled]
+	N5 [label="Personal Care Assistance" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N6 [label="Daily Living Assistance" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N7 [label="Care Plan Development" color="#EAEFA5" fillcolor="#FDFCEB" shape=database style=filled]
+	N8 [label="Incontinence Care" color="#EAEFA5" fillcolor="#FDFCEB" shape=document style=filled]
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=dashed label="guides" dir=forward]
+	N1 -> N2 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#DCE775" penwidth=1.5 style=dashed label="cares for" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="prevents" dir=forward]
+	N5 -> N6 [color="#EAEFA5" penwidth=1.5 style=solid label="manages" dir=forward]
+	N6 -> N7 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#DCE775" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N7 -> N1 [color="#000000" penwidth=1.5 style=solid label="rehabilitates" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_48.txt b/test/diagrams/scanned_easy/diagrams_48.txt
new file mode 100644
index 0000000000000000000000000000000000000000..95679e483ef4efa895eb266cf8295ed344b251d4
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_48.txt
@@ -0,0 +1,9 @@
+<Care Plan Development, optimizes, Incontinence Care>
+<Care Plan Development, rehabilitates, Smart Home Integration for Seniors>
+<Daily Living Assistance, connectedTo, Care Plan Development>
+<Health Monitoring, connectedTo, Physical Therapy>
+<Personal Care Assistance, manages, Daily Living Assistance>
+<Physical Therapy, cares for, Rehabilitation Support>
+<Rehabilitation Support, prevents, Personal Care Assistance>
+<Smart Home Integration for Seniors, connectedTo, Health Monitoring>
+<Speech Therapy, guides, Smart Home Integration for Seniors>
diff --git a/test/diagrams/scanned_easy/diagrams_49.dot b/test/diagrams/scanned_easy/diagrams_49.dot
new file mode 100644
index 0000000000000000000000000000000000000000..18397c03c7ec57ddaa45c308c0be49af0e096f0e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_49.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=LR
+	N0 [label="International Aid Coordination" color="#FF8A65" fillcolor="#FBE9E7" shape=rectangle style=filled]
+	N1 [label="Recovery Planning" color="#4DB6AC" fillcolor="#E0F2F1" shape=database style=filled]
+	N2 [label="Satellite Imagery Analysis" color="#FF8A65" fillcolor="#FBE9E7" shape=predefinedprocess style=filled]
+	N3 [label="Volunteer Coordination" color="#4DB6AC" fillcolor="#E0F2F1" shape=database style=filled]
+	N4 [label="Damage Assessment" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N5 [label="Resource Mobilization" color="#FF8A65" fillcolor="#FBE9E7" shape=inputoutput style=filled]
+	N6 [label="Search and Rescue Operations" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+	N7 [label="Cash Transfer Programs" color="#FF8A65" fillcolor="#FBE9E7" shape=predefinedprocess style=filled]
+	N8 [label="Capacity Building for Local Communities" color="#FF8A65" fillcolor="#FBE9E7" shape=inputoutput style=filled]
+	N9 [label="Medical Aid Deployment" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N10 [label="Risk Assessment" color="#FF8A65" fillcolor="#FBE9E7" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="rescues" dir=forward]
+	N4 -> N5 [color="#CB9BE1" penwidth=1.5 style=solid label="rebuilds" dir=forward]
+	N5 -> N6 [color="#CB9BE1" penwidth=1.5 style=solid label="mobilizes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="identifies" dir=forward]
+	N8 -> N9 [color="#4DB6AC" penwidth=1.5 style=solid label="prevents" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="donates" dir=forward]
+	N9 -> N4 [color="#CB9BE1" penwidth=1.5 style=solid label="audits" dir=forward]
+	N10 -> N0 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_5.dot b/test/diagrams/scanned_easy/diagrams_5.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2563c403318362cc356ca821d8b46ffb4d9d26ae
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_5.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=LR
+	N0 [label="Live Chat Support" color="#4DB6AC" fillcolor="#E0F2F1" shape=document style=filled]
+	N1 [label="Checkout" color="#90A4AE" fillcolor="#ECEFF1" shape=rect style=filled]
+	N2 [label="Social Media Integration" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+	N3 [label="Loyalty Points" color="#4DB6AC" fillcolor="#E0F2F1" shape=document style=filled]
+	N4 [label="Up_selling Offer" color="#4DB6AC" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N5 [label="Affiliate Marketing" color="#90A4AE" fillcolor="#ECEFF1" shape=database style=filled]
+	N6 [label="Promotion Application" color="#4DB6AC" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N7 [label="Product Recommendation" color="#5C6BC0" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	N8 [label="Cross_selling Recommendation" color="#4DB6AC" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N9 [label="Wishlist Management" color="#4DB6AC" fillcolor="#E0F2F1" shape=database style=filled]
+	N10 [label="Mobile App Interaction" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="tracks" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="confirms" dir=forward]
+	N2 -> N3 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#4DB6AC" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N4 -> N5 [color="#90A4AE" penwidth=1.5 style=solid label="adjusts" dir=forward]
+	N5 -> N6 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#4DB6AC" penwidth=1.5 style=solid label="refunds" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N10 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_5.txt b/test/diagrams/scanned_easy/diagrams_5.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9c753f97a69106410dc3ad482da7c0ae48d77c83
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_5.txt
@@ -0,0 +1,11 @@
+<Affiliate Marketing, connectedTo, Promotion Application>
+<Checkout, confirms, Social Media Integration>
+<Cross_selling Recommendation, refunds, Wishlist Management>
+<Live Chat Support, tracks, Checkout>
+<Loyalty Points, optimizes, Up_selling Offer>
+<Product Recommendation, connectedTo, Cross_selling Recommendation>
+<Promotion Application, connectedTo, Product Recommendation>
+<Social Media Integration, connectedTo, Loyalty Points>
+<Up_selling Offer, adjusts, Affiliate Marketing>
+<Up_selling Offer, connectedTo, Mobile App Interaction>
+<Wishlist Management, connectedTo, Mobile App Interaction>
diff --git a/test/diagrams/scanned_easy/diagrams_50.dot b/test/diagrams/scanned_easy/diagrams_50.dot
new file mode 100644
index 0000000000000000000000000000000000000000..87b507bfb4928d52f2425ba0a97c7cc6237865ea
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_50.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=TB
+	N0 [label="Naval Operations" color="#3F51B5" fillcolor="#C5CAE9" shape=rect style=filled]
+	N1 [label="Supply Chain Management" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	N2 [label="Logistics Support" color="#EAEFA5" fillcolor="#FDFCEB" shape=preparation style=filled]
+	N3 [label="Unmanned Systems Operation" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+	N4 [label="Counter_Terrorism Operations" color="#3F51B5" fillcolor="#C5CAE9" shape=multipledocuments style=filled]
+	N5 [label="Rules of Engagement" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+	N6 [label="Recruitment" color="#42A5F5" fillcolor="#F1F8FF" shape=multipledocuments style=filled]
+	N7 [label="Personnel Management" color="#3F51B5" fillcolor="#C5CAE9" shape=multipledocuments style=filled]
+	N8 [label="Specialized Training" color="#42A5F5" fillcolor="#F1F8FF" shape=document style=filled]
+	N0 -> N1 [color="#3F51B5" penwidth=1.5 style=solid label="reports" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="interdicts" dir=forward]
+	N2 -> N3 [color="#3F51B5" penwidth=1.5 style=solid label="maps" dir=forward]
+	N3 -> N4 [color="#3F51B5" penwidth=1.5 style=solid label="supplies" dir=forward]
+	N4 -> N5 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#42A5F5" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N8 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_52.txt b/test/diagrams/scanned_easy/diagrams_52.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5aea96bda281476ae17df94ed99e68e97eeff5d6
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_52.txt
@@ -0,0 +1,12 @@
+<Autonomous Vehicle Navigation, connectedTo, GPS Positioning>
+<Cycle Route Planning, monitors, Voice Guidance Customization>
+<ETA Estimation, orients, Points of Interest Search>
+<GPS Positioning, interprets, Topographic Mapping>
+<Navigation Data Update, connectedTo, Cycle Route Planning>
+<Offline Map Support, integrates, Route Calculation>
+<Personalized Route Preferences, connectedTo, Points of Interest Search>
+<Personalized Route Preferences, verifies, Wearable Device Navigation>
+<Route Calculation, tracks, Personalized Route Preferences>
+<Topographic Mapping, plots, Offline Map Support>
+<Voice Guidance Customization, connectedTo, Autonomous Vehicle Navigation>
+<Wearable Device Navigation, displays, ETA Estimation>
diff --git a/test/diagrams/scanned_easy/diagrams_54.dot b/test/diagrams/scanned_easy/diagrams_54.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3aaeb0dec58dab1d91d5cd3beba5e9ede786e7e7
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_54.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=RL
+	N0 [label="Nanocoatings" color="#FF8A65" fillcolor="#FBE9E7" shape=inputoutput style=filled]
+	N1 [label="Nanodevice Fabrication" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N2 [label="Nanocomposites" color="#F06292" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	N3 [label="Nanomaterial Synthesis" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N4 [label="Biosensors" color="#F06292" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N5 [label="Scanning Electron Microscopy" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N6 [label="Nanoscale Imaging" color="#F06292" fillcolor="#FCE4EC" shape=multipledocuments style=filled]
+	N7 [label="Nanosensors" color="#F06292" fillcolor="#FCE4EC" shape=action style=filled]
+	N8 [label="Nanotoxicology" color="#5C6BC0" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N0 -> N1 [color="#5C6BC0" penwidth=1.5 style=solid label="protects" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="functionalizes" dir=forward]
+	N2 -> N3 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="applies" dir=forward]
+	N4 -> N5 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#F06292" penwidth=1.5 style=dashed label="cleans" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="monitors" dir=forward]
+	N2 -> N5 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N6 -> N5 [color="#F06292" penwidth=1.5 style=solid label="analyzes" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_55.dot b/test/diagrams/scanned_easy/diagrams_55.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8e5881646572bae1e65317b09458ce5f41ec2949
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_55.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=LR
+	N0 [label="Quantum Cryptography" color="#E0E0E0" fillcolor="#EBEBEB" shape=database style=filled]
+	N1 [label="Vacuum Systems for Trapped Ions" color="#FFCC80" fillcolor="#FFF0CC" shape=rect style=filled]
+	N2 [label="Quantum Cloud Computing Services" color="#B8C0F5" fillcolor="#ECF0FD" shape=action style=filled]
+	N3 [label="Quantum Coherence Management" color="#B8C0F5" fillcolor="#ECF0FD" shape=parallelogram style=filled]
+	N4 [label="Quantum Algorithm Development" color="#B8C0F5" fillcolor="#ECF0FD" shape=document style=filled]
+	N5 [label="Quantum Circuit Design" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N6 [label="Quantum Network Development" color="#FFCC80" fillcolor="#FFF0CC" shape=rect style=filled]
+	N7 [label="Cryogenic Systems for Qubits" color="#FFCC80" fillcolor="#FFF0CC" shape=rect style=filled]
+	N8 [label="Quantum Entanglement Generation" color="#E0E0E0" fillcolor="#EBEBEB" shape=vnode_shape style=filled]
+	N9 [label="Quantum Programming Languages" color="#E0E0E0" fillcolor="#EBEBEB" shape=preparation style=filled]
+	N0 -> N1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="encrypts" dir=forward]
+	N2 -> N3 [color="#FFCC80" penwidth=1.5 style=solid label="configures" dir=forward]
+	N3 -> N4 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#E0E0E0" penwidth=1.5 style=solid label="programs" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="applies" dir=forward]
+	N7 -> N8 [color="#FFCC80" penwidth=1.5 style=dashed label="verifies" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N8 -> N1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N3 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_56.dot b/test/diagrams/scanned_easy/diagrams_56.dot
new file mode 100644
index 0000000000000000000000000000000000000000..465149a90111a06c8a156442d8c80cd9504426c1
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_56.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=BT
+	N0 [label="Neuro_VR Interfaces" color="#F7BEE0" fillcolor="#FAEBF3" shape=hexagon style=filled]
+	N1 [label="Medical Applications" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N2 [label="Content Creation for AR or VR" color="#DCE775" fillcolor="#F9FBE7" shape=document style=filled]
+	N3 [label="Cloud_based AR or VR Rendering" color="#A1D7CD" fillcolor="#EDF5F3" shape=parallelogram style=filled]
+	N4 [label="Industrial Maintenance Support" color="#A1D7CD" fillcolor="#EDF5F3" shape=preparation style=filled]
+	N5 [label="Field of View Optimization" color="#DCE775" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N6 [label="Comfort and Ergonomics Design" color="#A1D7CD" fillcolor="#EDF5F3" shape=multipledocuments style=filled]
+	N7 [label="Multiplayer Experience Design" color="#A1D7CD" fillcolor="#EDF5F3" shape=rect style=filled]
+	N8 [label="Virtual Tourism Experiences" color="#F7BEE0" fillcolor="#FAEBF3" shape=hexagon style=filled]
+	N9 [label="Eye Tracking" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N10 [label="Hardware Prototyping" color="#F7BEE0" fillcolor="#FAEBF3" shape=rectangle style=filled]
+	N11 [label="Remote Collaboration Tools" color="#F7BEE0" fillcolor="#FAEBF3" shape=predefinedprocess style=filled]
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=dashed label="navigates" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N2 -> N3 [color="#F7BEE0" penwidth=1.5 style=solid label="interacts" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="projects" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#F7BEE0" penwidth=1.5 style=dashed label="collaborates" dir=forward]
+	N7 -> N8 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#A1D7CD" penwidth=1.5 style=solid label="generates" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> N1 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_56.txt b/test/diagrams/scanned_easy/diagrams_56.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fb52326d3ae6a4925f2d4bf230548b248671e65c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_56.txt
@@ -0,0 +1,12 @@
+<Cloud_based AR or VR Rendering, connectedTo, Medical Applications>
+<Cloud_based AR or VR Rendering, projects, Industrial Maintenance Support>
+<Comfort and Ergonomics Design, collaborates, Multiplayer Experience Design>
+<Content Creation for AR or VR, interacts, Cloud_based AR or VR Rendering>
+<Eye Tracking, connectedTo, Hardware Prototyping>
+<Field of View Optimization, connectedTo, Comfort and Ergonomics Design>
+<Hardware Prototyping, connectedTo, Remote Collaboration Tools>
+<Industrial Maintenance Support, connectedTo, Field of View Optimization>
+<Medical Applications, analyzes, Content Creation for AR or VR>
+<Multiplayer Experience Design, connectedTo, Virtual Tourism Experiences>
+<Neuro_VR Interfaces, navigates, Medical Applications>
+<Virtual Tourism Experiences, generates, Eye Tracking>
diff --git a/test/diagrams/scanned_easy/diagrams_58.dot b/test/diagrams/scanned_easy/diagrams_58.dot
new file mode 100644
index 0000000000000000000000000000000000000000..36dccdd3da5b8dc1e38cdd0aadc604acb703eb66
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_58.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=TB
+	N0 [label="Recording" color="#8C9EFF" fillcolor="#D3D7EB" shape=action style=filled]
+	N1 [label="Mastering" color="#26A69A" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N2 [label="Music Festival Organization" color="#66BB6A" fillcolor="#E8F5E9" shape=database style=filled]
+	N3 [label="Lyric Writing" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+	N4 [label="Merchandise Sales" color="#26A69A" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N5 [label="A&R" color="#8C9EFF" fillcolor="#D3D7EB" shape=hexagon style=filled]
+	N6 [label="Ticketing" color="#8C9EFF" fillcolor="#D3D7EB" shape=parallelogram style=filled]
+	N7 [label="Music Publishing" color="#26A69A" fillcolor="#E0F2F1" shape=inputoutput style=filled]
+	N8 [label="Music Licensing" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N9 [label="Concert Promotion" color="#26A69A" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N0 -> N1 [color="#8C9EFF" penwidth=1.5 style=solid label="arranges" dir=forward]
+	N1 -> N2 [color="#66BB6A" penwidth=1.5 style=solid label="learns" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#66BB6A" penwidth=1.5 style=dashed label="critiques" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#8C9EFF" penwidth=1.5 style=solid label="records" dir=forward]
+	N6 -> N7 [color="#26A69A" penwidth=1.5 style=dashed label="scores" dir=forward]
+	N7 -> N8 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N3 -> N8 [color="#26A69A" penwidth=1.5 style=dashed label="syncs" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_59.txt b/test/diagrams/scanned_easy/diagrams_59.txt
new file mode 100644
index 0000000000000000000000000000000000000000..07f4fafb3dc37b0c478e7277d38282ec467c8796
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_59.txt
@@ -0,0 +1,10 @@
+<Costume Design, records, Distribution Strategy>
+<Distribution Strategy, connectedTo, Prop Management>
+<Film Financing, connectedTo, Costume Design>
+<Location Scouting, distributes, Talent Negotiation>
+<Makeup and Hair Design, connectedTo, Film Financing>
+<Makeup and Hair Design, edits, Location Scouting>
+<Pre_production Planning, scores, Makeup and Hair Design>
+<Production Scheduling, connectedTo, Screenwriting Workshops>
+<Screenwriting Workshops, connectedTo, Pre_production Planning>
+<Talent Negotiation, connectedTo, Production Scheduling>
diff --git a/test/diagrams/scanned_easy/diagrams_6.dot b/test/diagrams/scanned_easy/diagrams_6.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7d8d6b52e8b62843cfe6bd234a74aea58587152c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_6.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=RL
+	N0 [label="Tunnel Monitoring" color="#E0E0E0" fillcolor="#EBEBEB" shape=inputoutput style=filled]
+	N1 [label="Ticket Purchase" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+	N2 [label="Fare Calculation" color="#E0E0E0" fillcolor="#EBEBEB" shape=document style=filled]
+	N3 [label="Boarding" color="#FFD54F" fillcolor="#FFF8E1" shape=rectangle style=filled]
+	N4 [label="Road Network Management" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+	N5 [label="Arrival" color="#94C0C0" fillcolor="#CADEDE" shape=predefinedprocess style=filled]
+	N6 [label="Public Transport Ticketing" color="#FFD54F" fillcolor="#FFF8E1" shape=hexagon style=filled]
+	N7 [label="Luggage Handling" color="#94C0C0" fillcolor="#CADEDE" shape=multipledocuments style=filled]
+	N0 -> N1 [color="#94C0C0" penwidth=1.5 style=solid label="surveys" dir=forward]
+	N1 -> N2 [color="#E0E0E0" penwidth=1.5 style=solid label="diversifies" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFD54F" penwidth=1.5 style=dashed label="arrives" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="boards" dir=forward]
+	N5 -> N6 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N6 [color="#94C0C0" penwidth=1.5 style=dashed label="coordinates" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_6.txt b/test/diagrams/scanned_easy/diagrams_6.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0f47e5c0e811f0d735e660962e4a4bf5eea2bf63
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_6.txt
@@ -0,0 +1,8 @@
+<Arrival, connectedTo, Public Transport Ticketing>
+<Boarding, arrives, Road Network Management>
+<Fare Calculation, connectedTo, Boarding>
+<Public Transport Ticketing, connectedTo, Luggage Handling>
+<Road Network Management, boards, Arrival>
+<Ticket Purchase, coordinates, Public Transport Ticketing>
+<Ticket Purchase, diversifies, Fare Calculation>
+<Tunnel Monitoring, surveys, Ticket Purchase>
diff --git a/test/diagrams/scanned_easy/diagrams_60.dot b/test/diagrams/scanned_easy/diagrams_60.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3da083e24750719615d80d65208191351136eb29
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_60.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=RL
+	N0 [label="Search Engine Optimization" color="#4DD0E1" fillcolor="#C9F0F0" shape=action style=filled]
+	N1 [label="Copywriting" color="#66BB6A" fillcolor="#E8F5E9" shape=rect style=filled]
+	N2 [label="Podcast Production" color="#F44336" fillcolor="#FFCDD2" shape=inputoutput style=filled]
+	N3 [label="Interactive Content Development" color="#F44336" fillcolor="#FFCDD2" shape=vnode_shape style=filled]
+	N4 [label="Transcribing Audio or Video" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+	N5 [label="E_book Writing" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	N6 [label="Audience Engagement" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N7 [label="Graphic Design" color="#66BB6A" fillcolor="#E8F5E9" shape=database style=filled]
+	N8 [label="Editing and Proofreading" color="#F44336" fillcolor="#FFCDD2" shape=rectangle style=filled]
+	N9 [label="Video Scripting" color="#66BB6A" fillcolor="#E8F5E9" shape=parallelogram style=filled]
+	N10 [label="Publishing" color="#F44336" fillcolor="#FFCDD2" shape=rectangle style=filled]
+	N11 [label="Plagiarism Checking" color="#4DD0E1" fillcolor="#C9F0F0" shape=database style=filled]
+	N0 -> N1 [color="#F44336" penwidth=1.5 style=solid label="photographs" dir=forward]
+	N1 -> N2 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#66BB6A" penwidth=1.5 style=dashed label="animates" dir=forward]
+	N3 -> N4 [color="#4DD0E1" penwidth=1.5 style=dashed label="interviews" dir=forward]
+	N4 -> N5 [color="#F44336" penwidth=1.5 style=dashed label="drafts" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="publishes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="records" dir=forward]
+	N7 -> N8 [color="#66BB6A" penwidth=1.5 style=solid label="creates" dir=forward]
+	N8 -> N9 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N2 -> N1 [color="#000000" penwidth=1.5 style=dashed label="promotes" dir=forward]
+	N9 -> N4 [color="#000000" penwidth=1.5 style=dashed label="researches" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_60.txt b/test/diagrams/scanned_easy/diagrams_60.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c96239ce30fa9e919792d643cb2ce81908b4ccac
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_60.txt
@@ -0,0 +1,13 @@
+<Audience Engagement, records, Graphic Design>
+<Copywriting, connectedTo, Podcast Production>
+<E_book Writing, publishes, Audience Engagement>
+<Editing and Proofreading, connectedTo, Video Scripting>
+<Graphic Design, creates, Editing and Proofreading>
+<Interactive Content Development, interviews, Transcribing Audio or Video>
+<Podcast Production, animates, Interactive Content Development>
+<Podcast Production, promotes, Copywriting>
+<Publishing, connectedTo, Plagiarism Checking>
+<Search Engine Optimization, photographs, Copywriting>
+<Transcribing Audio or Video, drafts, E_book Writing>
+<Video Scripting, connectedTo, Publishing>
+<Video Scripting, researches, Transcribing Audio or Video>
diff --git a/test/diagrams/scanned_easy/diagrams_61.dot b/test/diagrams/scanned_easy/diagrams_61.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9bd89a2edc5b00a80a2254a7b3c58352045e0bff
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_61.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=LR
+	N0 [label="Time Series Forecasting" color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	N1 [label="Cloud_based Data Platforms" color="#FFDA4E" fillcolor="#FFE88D" shape=rect style=filled]
+	N2 [label="Supply Chain Analytics" color="#607D8B" fillcolor="#CFD8DC" shape=diamond style=filled]
+	N3 [label="Marketing Campaign Analysis" color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	N4 [label="Data Pipeline Development" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	N5 [label="Data Quality Assurance" color="#607D8B" fillcolor="#CFD8DC" shape=rect style=filled]
+	N6 [label="Data Security Best Practices" color="#2196F3" fillcolor="#BBDEFB" shape=predefinedprocess style=filled]
+	N7 [label="Data Cleaning" color="#2196F3" fillcolor="#BBDEFB" shape=inputoutput style=filled]
+	N8 [label="Text Analytics" color="#FFDA4E" fillcolor="#FFE88D" shape=rect style=filled]
+	N9 [label="ETL Process Management" color="#2196F3" fillcolor="#BBDEFB" shape=predefinedprocess style=filled]
+	N10 [label="Business User Training on Analytics" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	N0 -> N1 [color="#2196F3" penwidth=1.5 style=solid label="forecasts" dir=forward]
+	N1 -> N2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#607D8B" penwidth=1.5 style=solid label="predicts" dir=forward]
+	N5 -> N6 [color="#2196F3" penwidth=1.5 style=solid label="transforms" dir=forward]
+	N6 -> N7 [color="#607D8B" penwidth=1.5 style=dashed label="integrates" dir=forward]
+	N7 -> N8 [color="#2196F3" penwidth=1.5 style=solid label="prepares" dir=forward]
+	N8 -> N9 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#607D8B" penwidth=1.5 style=solid label="shares" dir=forward]
+	N8 -> N1 [color="#000000" penwidth=1.5 style=solid label="stores" dir=forward]
+	N1 -> N5 [color="#2196F3" penwidth=1.5 style=solid label="validates" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_61.txt b/test/diagrams/scanned_easy/diagrams_61.txt
new file mode 100644
index 0000000000000000000000000000000000000000..09b486f757eb8b8a132b537bef0fcca57aeafe97
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_61.txt
@@ -0,0 +1,12 @@
+<Cloud_based Data Platforms, connectedTo, Supply Chain Analytics>
+<Cloud_based Data Platforms, validates, Data Quality Assurance>
+<Data Cleaning, prepares, Text Analytics>
+<Data Pipeline Development, predicts, Data Quality Assurance>
+<Data Quality Assurance, transforms, Data Security Best Practices>
+<Data Security Best Practices, integrates, Data Cleaning>
+<ETL Process Management, shares, Business User Training on Analytics>
+<Marketing Campaign Analysis, connectedTo, Data Pipeline Development>
+<Supply Chain Analytics, connectedTo, Marketing Campaign Analysis>
+<Text Analytics, connectedTo, ETL Process Management>
+<Text Analytics, stores, Cloud_based Data Platforms>
+<Time Series Forecasting, forecasts, Cloud_based Data Platforms>
diff --git a/test/diagrams/scanned_easy/diagrams_62.dot b/test/diagrams/scanned_easy/diagrams_62.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1b8a3319714144e0444885aa08be233fbd821275
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_62.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=TB
+	N0 [label="OLAP Cube Creation" color="#4DD0E1" fillcolor="#C9F0F0" shape=rectangle style=filled]
+	N1 [label="Data Quality Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=predefinedprocess style=filled]
+	N2 [label="Competitive Analysis" color="#4DD0E1" fillcolor="#C9F0F0" shape=parallelogram style=filled]
+	N3 [label="Report Automation" color="#FFEB3B" fillcolor="#FFF9C4" shape=rectangle style=filled]
+	N4 [label="Prescriptive Analytics Implementation" color="#7E57C2" fillcolor="#EDE7F6" shape=database style=filled]
+	N5 [label="User Training and Support" color="#FFEB3B" fillcolor="#FFF9C4" shape=database style=filled]
+	N6 [label="Market Trend Analysis" color="#7E57C2" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	N7 [label="Sales Forecasting" color="#FFEB3B" fillcolor="#FFF9C4" shape=vnode_shape style=filled]
+	N8 [label="KPI Definition" color="#FFEB3B" fillcolor="#FFF9C4" shape=database style=filled]
+	N9 [label="Regulatory Compliance Reporting" color="#7E57C2" fillcolor="#EDE7F6" shape=rect style=filled]
+	N10 [label="Data Governance Policies" color="#FFEB3B" fillcolor="#FFF9C4" shape=action style=filled]
+	N11 [label="Cloud BI Solutions" color="#4DD0E1" fillcolor="#C9F0F0" shape=ellipse style=filled]
+	N0 -> N1 [color="#4DD0E1" penwidth=1.5 style=dashed label="audits" dir=forward]
+	N1 -> N2 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#4DD0E1" penwidth=1.5 style=solid label="plans" dir=forward]
+	N3 -> N4 [color="#FFEB3B" penwidth=1.5 style=dashed label="measures" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N5 -> N6 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFEB3B" penwidth=1.5 style=dashed label="transforms" dir=forward]
+	N7 -> N8 [color="#4DD0E1" penwidth=1.5 style=solid label="defines" dir=forward]
+	N8 -> N9 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFEB3B" penwidth=1.5 style=dashed label="extracts" dir=forward]
+	N10 -> N11 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N0 -> N4 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N2 -> N11 [color="#FFEB3B" penwidth=1.5 style=solid label="monitors" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_63.dot b/test/diagrams/scanned_easy/diagrams_63.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9ad1f264f194346c831ebd13877e1c1c9a387526
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_63.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Event Marketing" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N1 [label="Influencer Marketing" color="#A1D7CD" fillcolor="#EDF5F3" shape=vnode_shape style=filled]
+	N2 [label="Video Marketing" color="#A1D7CD" fillcolor="#EDF5F3" shape=database style=filled]
+	N3 [label="Telemarketing" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	N4 [label="Direct Mail Marketing" color="#4DD0E1" fillcolor="#C9F0F0" shape=vnode_shape style=filled]
+	N5 [label="Partnership Marketing" color="#4DD0E1" fillcolor="#C9F0F0" shape=database style=filled]
+	N6 [label="Brand Strategy Development" color="#A1D7CD" fillcolor="#EDF5F3" shape=inputoutput style=filled]
+	N7 [label="Customer Relationship Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=multipledocuments style=filled]
+	N0 -> N1 [color="#FFE470" penwidth=1.5 style=dashed label="builds loyalty" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="podcast marketing" dir=forward]
+	N2 -> N3 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFE470" penwidth=1.5 style=solid label="video marketing" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#4DD0E1" penwidth=1.5 style=dashed label="promotes sales" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="brands" dir=forward]
+	N1 -> N3 [color="#A1D7CD" penwidth=1.5 style=solid label="enhances experiences" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_63.txt b/test/diagrams/scanned_easy/diagrams_63.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a4cf1df4f5aff63d6a990690b1e6b1339d6c1e49
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_63.txt
@@ -0,0 +1,8 @@
+<Brand Strategy Development, brands, Customer Relationship Management>
+<Direct Mail Marketing, connectedTo, Partnership Marketing>
+<Event Marketing, builds loyalty, Influencer Marketing>
+<Influencer Marketing, enhances experiences, Telemarketing>
+<Influencer Marketing, podcast marketing, Video Marketing>
+<Partnership Marketing, promotes sales, Brand Strategy Development>
+<Telemarketing, video marketing, Direct Mail Marketing>
+<Video Marketing, connectedTo, Telemarketing>
diff --git a/test/diagrams/scanned_easy/diagrams_64.txt b/test/diagrams/scanned_easy/diagrams_64.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6f4a8a75ded33e46c0be13af4c01ecb92586f159
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_64.txt
@@ -0,0 +1,12 @@
+<Ad Analytics Reporting, connectedTo, Regulatory Compliance for Ads>
+<Ad Analytics Reporting, implements retargeting, Display Advertising>
+<Digital Advertising, connectedTo, Fraud Detection in Ads>
+<Direct Response Campaigns, builds awareness, Outdoor Advertising>
+<Display Advertising, connectedTo, Video Advertising>
+<Display Advertising, interprets analytics, Digital Advertising>
+<Fraud Detection in Ads, connectedTo, Return on Ad Spend Calculation>
+<Performance Tracking, print advertising, Regulatory Compliance for Ads>
+<Psychographic Targeting, connectedTo, Digital Advertising>
+<Regulatory Compliance for Ads, digital advertising, Psychographic Targeting>
+<Return on Ad Spend Calculation, ensures compliance, Ad Analytics Reporting>
+<Video Advertising, connectedTo, Direct Response Campaigns>
diff --git a/test/diagrams/scanned_easy/diagrams_66.dot b/test/diagrams/scanned_easy/diagrams_66.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2e894ed3336bd34ccf9d2280ed90a000af2970ad
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_66.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Hot Wallet Security" color="#AED581" fillcolor="#F0F4C3" shape=database style=filled]
+	N1 [label="Airdrop Campaigns" color="#7E57C2" fillcolor="#EDE7F6" shape=preparation style=filled]
+	N2 [label="Cold Storage Solutions" color="#AED581" fillcolor="#F0F4C3" shape=diamond style=filled]
+	N3 [label="Decentralized Autonomous Organizations" color="#AED581" fillcolor="#F0F4C3" shape=hexagon style=filled]
+	N4 [label="Coin Creation" color="#7E57C2" fillcolor="#EDE7F6" shape=database style=filled]
+	N5 [label="Exchange Listing" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N6 [label="Tax Reporting for Crypto" color="#7E57C2" fillcolor="#EDE7F6" shape=rect style=filled]
+	N7 [label="Token Generation Event" color="#7E57C2" fillcolor="#EDE7F6" shape=action style=filled]
+	N0 -> N1 [color="#7E57C2" penwidth=1.5 style=solid label="enables swaps" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#7E57C2" penwidth=1.5 style=dashed label="provides liquidity" dir=forward]
+	N3 -> N4 [color="#AED581" penwidth=1.5 style=dashed label="calculates taxes" dir=forward]
+	N4 -> N5 [color="#7E57C2" penwidth=1.5 style=solid label="lists assets" dir=forward]
+	N5 -> N6 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N5 [color="#000000" penwidth=1.5 style=solid label="develops GameFi" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_67.dot b/test/diagrams/scanned_easy/diagrams_67.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8ac767831e0e082328afaa46153a6a915f682b58
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_67.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=BT
+	N0 [label="Success Fee Structures" color="#9FA9E1" fillcolor="#D6D9F0" shape=database style=filled]
+	N1 [label="Investor Relations" color="#9FA9E1" fillcolor="#D6D9F0" shape=diamond style=filled]
+	N2 [label="Platform Fee Management" color="#26A69A" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	N3 [label="Goal Setting" color="#E0E0E0" fillcolor="#EBEBEB" shape=ellipse style=filled]
+	N4 [label="Reward_Based Crowdfunding" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+	N5 [label="Intellectual Property Protection" color="#E0E0E0" fillcolor="#EBEBEB" shape=predefinedprocess style=filled]
+	N6 [label="Tax Implications of Crowdfunding" color="#26A69A" fillcolor="#E0F2F1" shape=preparation style=filled]
+	N7 [label="Equity Crowdfunding" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+	N8 [label="Debt Crowdfunding" color="#E0E0E0" fillcolor="#EBEBEB" shape=vnode_shape style=filled]
+	N9 [label="Campaign Creation" color="#9FA9E1" fillcolor="#D6D9F0" shape=multipledocuments style=filled]
+	N0 -> N1 [color="#26A69A" penwidth=1.5 style=dashed label="sets goals" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#9FA9E1" penwidth=1.5 style=solid label="produces content" dir=forward]
+	N3 -> N4 [color="#9FA9E1" penwidth=1.5 style=solid label="facilitates international campaigns" dir=forward]
+	N4 -> N5 [color="#E0E0E0" penwidth=1.5 style=solid label="builds communities" dir=forward]
+	N5 -> N6 [color="#26A69A" penwidth=1.5 style=dashed label="adheres to regulations" dir=forward]
+	N6 -> N7 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#9FA9E1" penwidth=1.5 style=dashed label="vets projects" dir=forward]
+	N8 -> N9 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N5 -> N0 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N0 -> N7 [color="#E0E0E0" penwidth=1.5 style=solid label="designs rewards" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_67.txt b/test/diagrams/scanned_easy/diagrams_67.txt
new file mode 100644
index 0000000000000000000000000000000000000000..324a74e0a026bd39fec1f2582ebb37d130b8b669
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_67.txt
@@ -0,0 +1,11 @@
+<Debt Crowdfunding, connectedTo, Campaign Creation>
+<Equity Crowdfunding, vets projects, Debt Crowdfunding>
+<Goal Setting, facilitates international campaigns, Reward_Based Crowdfunding>
+<Intellectual Property Protection, adheres to regulations, Tax Implications of Crowdfunding>
+<Intellectual Property Protection, connectedTo, Success Fee Structures>
+<Investor Relations, connectedTo, Platform Fee Management>
+<Platform Fee Management, produces content, Goal Setting>
+<Reward_Based Crowdfunding, builds communities, Intellectual Property Protection>
+<Success Fee Structures, designs rewards, Equity Crowdfunding>
+<Success Fee Structures, sets goals, Investor Relations>
+<Tax Implications of Crowdfunding, connectedTo, Equity Crowdfunding>
diff --git a/test/diagrams/scanned_easy/diagrams_68.txt b/test/diagrams/scanned_easy/diagrams_68.txt
new file mode 100644
index 0000000000000000000000000000000000000000..30832a3ca42716f8a6c3183acc20827a51fbbf33
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_68.txt
@@ -0,0 +1,10 @@
+<Asset Tracking, connects endpoints, Energy Management Systems>
+<Blockchain for IoT Security, connectedTo, Smart Home Devices>
+<Cloud Platform Integration, connectedTo, Blockchain for IoT Security>
+<Device Management, connectedTo, AI at the Edge>
+<Energy Management Systems, controls devices, Firmware Updates>
+<Firmware Updates, connectedTo, Device Management>
+<Interoperability Standards, connectedTo, Cloud Platform Integration>
+<Interoperability Standards, connectedTo, Energy Management Systems>
+<Smart Home Devices, manages deployments, User Interface for IoT Apps>
+<User Interface for IoT Apps, improves retail, Asset Tracking>
diff --git a/test/diagrams/scanned_easy/diagrams_7.dot b/test/diagrams/scanned_easy/diagrams_7.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b0370ad0efe544f8cc9396af8e45fb8e2d304c68
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_7.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=LR
+	N0 [label="Energy Efficiency Audit" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N1 [label="Pipeline Monitoring" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N2 [label="Voltage Regulation" color="#FFE69C" fillcolor="#FFF9D4" shape=document style=filled]
+	N3 [label="Sensor Reading" color="#795548" fillcolor="#D7CCC8" shape=parallelogram style=filled]
+	N4 [label="Power Backup" color="#FFF8A6" fillcolor="#FFFDE0" shape=multipledocuments style=filled]
+	N5 [label="Transmission Line Maintenance" color="#795548" fillcolor="#D7CCC8" shape=parallelogram style=filled]
+	N6 [label="Power Purchase" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N7 [label="Grid Balancing" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	N8 [label="Load Distribution" color="#FFE69C" fillcolor="#FFF9D4" shape=preparation style=filled]
+	N9 [label="Energy Storage" color="#FFE69C" fillcolor="#FFF9D4" shape=document style=filled]
+	N10 [label="Load Shedding" color="#795548" fillcolor="#D7CCC8" shape=preparation style=filled]
+	N11 [label="Hydropower Generation" color="#FFE69C" fillcolor="#FFF9D4" shape=rectangle style=filled]
+	N0 -> N1 [color="#795548" penwidth=1.5 style=dashed label="isolates" dir=forward]
+	N1 -> N2 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFF8A6" penwidth=1.5 style=solid label="balances" dir=forward]
+	N3 -> N4 [color="#FFE69C" penwidth=1.5 style=solid label="markets" dir=forward]
+	N4 -> N5 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#795548" penwidth=1.5 style=solid label="installs" dir=forward]
+	N6 -> N7 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FFF8A6" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N0 -> N2 [color="#FFF8A6" penwidth=1.5 style=dashed label="audits" dir=forward]
+	N8 -> N1 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_7.txt b/test/diagrams/scanned_easy/diagrams_7.txt
new file mode 100644
index 0000000000000000000000000000000000000000..14bf363dbf9e19960ad8ac65aa7d38d1725f1937
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_7.txt
@@ -0,0 +1,13 @@
+<Energy Efficiency Audit, audits, Voltage Regulation>
+<Energy Efficiency Audit, isolates, Pipeline Monitoring>
+<Energy Storage, connectedTo, Load Shedding>
+<Grid Balancing, connectedTo, Load Distribution>
+<Load Distribution, connectedTo, Energy Storage>
+<Load Distribution, connectedTo, Pipeline Monitoring>
+<Load Shedding, optimizes, Hydropower Generation>
+<Pipeline Monitoring, connectedTo, Voltage Regulation>
+<Power Backup, connectedTo, Transmission Line Maintenance>
+<Power Purchase, connectedTo, Grid Balancing>
+<Sensor Reading, markets, Power Backup>
+<Transmission Line Maintenance, installs, Power Purchase>
+<Voltage Regulation, balances, Sensor Reading>
diff --git a/test/diagrams/scanned_easy/diagrams_70.dot b/test/diagrams/scanned_easy/diagrams_70.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5600c4709a683f474b5cb52e800e4c46c94ac358
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_70.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=LR
+	N0 [label="Cloud Migration Strategy" color="#A2D0FF" fillcolor="#E8F0FF" shape=database style=filled]
+	N1 [label="DevOps on Cloud" color="#A2D0FF" fillcolor="#E8F0FF" shape=action style=filled]
+	N2 [label="Infrastructure as a Service" color="#42A5F5" fillcolor="#F1F8FF" shape=action style=filled]
+	N3 [label="Resource Tagging for Cost Allocation" color="#A2D0FF" fillcolor="#E8F0FF" shape=inputoutput style=filled]
+	N4 [label="API Management in Cloud" color="#42A5F5" fillcolor="#F1F8FF" shape=hexagon style=filled]
+	N5 [label="Cloud Architecture Design" color="#42A5F5" fillcolor="#F1F8FF" shape=document style=filled]
+	N6 [label="Identity and Access Management" color="#42A5F5" fillcolor="#F1F8FF" shape=rectangle style=filled]
+	N7 [label="Cloud Backup Solutions" color="#42A5F5" fillcolor="#F1F8FF" shape=multipledocuments style=filled]
+	N0 -> N1 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#A2D0FF" penwidth=1.5 style=dashed label="manages multi_clouds" dir=forward]
+	N2 -> N3 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="provides IaaS" dir=forward]
+	N4 -> N5 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A2D0FF" penwidth=1.5 style=dashed label="offers MLaaS" dir=forward]
+	N6 -> N7 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N5 -> N2 [color="#BDBDBD" penwidth=1.5 style=dashed label="processes big data" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_71.txt b/test/diagrams/scanned_easy/diagrams_71.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ee597b02adf94cb5d1402cb1bdd487eb7a11a280
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_71.txt
@@ -0,0 +1,8 @@
+<Cloud Integration with On_premise, secures systems, Power and Cooling Management>
+<Data Center Management, optimizes environments, Operating System Installation>
+<IT Asset Management, connectedTo, Troubleshooting and Support>
+<Power and Cooling Management, connectedTo, IT Asset Management>
+<System Administration, sets up VPNs, Data Center Management>
+<Troubleshooting and Support, manages proxies, System Administration>
+<VPN Configuration, applies patches, Operating System Installation>
+<VPN Configuration, connectedTo, Cloud Integration with On_premise>
diff --git a/test/diagrams/scanned_easy/diagrams_72.dot b/test/diagrams/scanned_easy/diagrams_72.dot
new file mode 100644
index 0000000000000000000000000000000000000000..08e9dcaeda592a5008787483bb2e1f7bf9f6f31c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_72.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=LR
+	N0 [label="Observability Implementation" color="#388E3C" fillcolor="#F1F8E9" shape=action style=filled]
+	N1 [label="Monitoring and Logging" color="#673AB7" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N2 [label="Continuous Integration" color="#673AB7" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+	N3 [label="Cost Optimization in Cloud DevOps" color="#FFC107" fillcolor="#FFECB3" shape=inputoutput style=filled]
+	N4 [label="Cross_Functional Team Collaboration" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	N5 [label="GitOps" color="#388E3C" fillcolor="#F1F8E9" shape=preparation style=filled]
+	N6 [label="Immutable Infrastructure" color="#388E3C" fillcolor="#F1F8E9" shape=predefinedprocess style=filled]
+	N7 [label="Cloud Native Development" color="#673AB7" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N8 [label="Alerting and Incident Response" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N9 [label="Container Orchestration" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+	N10 [label="Version Control" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N0 -> N1 [color="#673AB7" penwidth=1.5 style=solid label="orchestrates containers" dir=forward]
+	N1 -> N2 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#388E3C" penwidth=1.5 style=solid label="builds cloud_native apps" dir=forward]
+	N3 -> N4 [color="#388E3C" penwidth=1.5 style=solid label="automates pipelines" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#388E3C" penwidth=1.5 style=solid label="deploys canaries" dir=forward]
+	N6 -> N7 [color="#388E3C" penwidth=1.5 style=solid label="manages environments" dir=forward]
+	N7 -> N8 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFC107" penwidth=1.5 style=solid label="implements SRE" dir=forward]
+	N9 -> N10 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N2 [color="#FFC107" penwidth=1.5 style=dashed label="performs static analysis" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_73.txt b/test/diagrams/scanned_easy/diagrams_73.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3749b40c5dec2dac090e22fc81b8875b653d420d
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_73.txt
@@ -0,0 +1,12 @@
+<API Development, connectedTo, Compiler Design>
+<Architecture Planning, optimizes performance, Testing Frameworks>
+<Code Review, develops cloud_native apps, Requirements Gathering>
+<Compiler Design, develops web apps, Data Structures Implementation>
+<Containerization, designs games, User Experience Design>
+<Data Structures Implementation, uses agile methodologies, Code Review>
+<Performance Optimization, uses frameworks, User Interface Design>
+<Requirements Gathering, connectedTo, Performance Optimization>
+<Technical Debt Management, connectedTo, Containerization>
+<Testing Frameworks, performs refactoring, API Development>
+<User Experience Design, connectedTo, Compiler Design>
+<User Interface Design, fixes bugs, Technical Debt Management>
diff --git a/test/diagrams/scanned_easy/diagrams_74.txt b/test/diagrams/scanned_easy/diagrams_74.txt
new file mode 100644
index 0000000000000000000000000000000000000000..adb7fad0955df1b9c3d511095631b6199392d34e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_74.txt
@@ -0,0 +1,12 @@
+<Actuator Control, connectedTo, High_Speed Digital Design>
+<Cable Management, lays out PCBs, Environmental Testing>
+<Circuit Design, selects components, Documentation>
+<Documentation, connectedTo, Actuator Control>
+<Enclosure Design, connectedTo, Regulatory Compliance>
+<Environmental Testing, connectedTo, Actuator Control>
+<Environmental Testing, connectedTo, PCB Layout>
+<Failure Analysis, designs fixtures, Circuit Design>
+<High_Speed Digital Design, connectedTo, Cable Management>
+<Intellectual Property Protection, manages cables, Enclosure Design>
+<PCB Layout, controls actuators, Intellectual Property Protection>
+<Regulatory Compliance, develops ASICs, Actuator Control>
diff --git a/test/diagrams/scanned_easy/diagrams_76.dot b/test/diagrams/scanned_easy/diagrams_76.dot
new file mode 100644
index 0000000000000000000000000000000000000000..50a539b44cd8fb01f9b3a23d0140e3fdb330a748
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_76.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=TB
+	N0 [label="Reporting and Optimization" color="#F06292" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	N1 [label="Reputation Management" color="#FFC107" fillcolor="#FFECB3" shape=vnode_shape style=filled]
+	N2 [label="Influencer Collaboration" color="#FFF176" fillcolor="#FFFDE7" shape=rect style=filled]
+	N3 [label="Engagement Rate Calculation" color="#FFF176" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N4 [label="Direct Messaging Strategy" color="#F06292" fillcolor="#FCE4EC" shape=inputoutput style=filled]
+	N5 [label="Social Media Audits" color="#FFC107" fillcolor="#FFECB3" shape=multipledocuments style=filled]
+	N6 [label="Emerging Platform Exploration" color="#F06292" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N7 [label="Hashtag Research" color="#F06292" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N8 [label="Ethical Use of Social Media" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	N0 -> N1 [color="#FFF176" penwidth=1.5 style=solid label="generates reports" dir=forward]
+	N1 -> N2 [color="#FFF176" penwidth=1.5 style=solid label="tracks performance" dir=forward]
+	N2 -> N3 [color="#FFC107" penwidth=1.5 style=solid label="moderates comments" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="supports customers" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N2 [color="#FFF176" penwidth=1.5 style=dashed label="explores new features" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_76.txt b/test/diagrams/scanned_easy/diagrams_76.txt
new file mode 100644
index 0000000000000000000000000000000000000000..122826941d4a20a136b8d9b2acc1fd5141e9cf4f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_76.txt
@@ -0,0 +1,9 @@
+<Direct Messaging Strategy, connectedTo, Social Media Audits>
+<Emerging Platform Exploration, connectedTo, Hashtag Research>
+<Engagement Rate Calculation, supports customers, Direct Messaging Strategy>
+<Hashtag Research, connectedTo, Ethical Use of Social Media>
+<Influencer Collaboration, moderates comments, Engagement Rate Calculation>
+<Reporting and Optimization, generates reports, Reputation Management>
+<Reputation Management, tracks performance, Influencer Collaboration>
+<Social Media Audits, connectedTo, Emerging Platform Exploration>
+<Social Media Audits, explores new features, Influencer Collaboration>
diff --git a/test/diagrams/scanned_easy/diagrams_78.txt b/test/diagrams/scanned_easy/diagrams_78.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1d05da28e22792b322588a76ac7b4b86b467866e
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_78.txt
@@ -0,0 +1,10 @@
+<Attribute Management, governs access, Single Sign_On>
+<Authentication, connectedTo, Identity Proofing>
+<Customer Identity and Access Management, ensures non_repudiation, Risk_Based Authentication>
+<Digital Certificates, implements SSO, Attribute Management>
+<Identity Proofing, implements DIDs, Customer Identity and Access Management>
+<Risk_Based Authentication, authenticates users, Attribute Management>
+<Risk_Based Authentication, connectedTo, User Registration>
+<Single Sign_On, connectedTo, Identity as a Service>
+<Single Sign_On, implements PAM, Attribute Management>
+<User Registration, connectedTo, Digital Certificates>
diff --git a/test/diagrams/scanned_easy/diagrams_79.dot b/test/diagrams/scanned_easy/diagrams_79.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e0aec5308aaa4a6916de5cf5868dde66a4161481
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_79.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=BT
+	N0 [label="Accessibility Features" color="#AABEC6" fillcolor="#E0E6E9" shape=document style=filled]
+	N1 [label="Test Preparation Courses" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+	N2 [label="Learning Analytics" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+	N3 [label="Adaptive Learning Technologies" color="#AABEC6" fillcolor="#E0E6E9" shape=preparation style=filled]
+	N4 [label="Micro_credential Programs" color="#F7BEE0" fillcolor="#FAEBF3" shape=diamond style=filled]
+	N5 [label="Student Engagement Strategies" color="#A1887F" fillcolor="#EFEBE9" shape=diamond style=filled]
+	N6 [label="Virtual Labs and Simulations" color="#AABEC6" fillcolor="#E0E6E9" shape=rect style=filled]
+	N7 [label="AI in Online Education" color="#A1887F" fillcolor="#EFEBE9" shape=parallelogram style=filled]
+	N0 -> N1 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#F7BEE0" penwidth=1.5 style=solid label="manages hardware" dir=forward]
+	N2 -> N3 [color="#F7BEE0" penwidth=1.5 style=solid label="designs content" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="applies learning design" dir=forward]
+	N5 -> N6 [color="#F7BEE0" penwidth=1.5 style=solid label="hosts MOOCs" dir=forward]
+	N6 -> N7 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N6 [color="#F7BEE0" penwidth=1.5 style=dashed label="delivers lectures" dir=forward]
+	N7 -> N0 [color="#A1887F" penwidth=1.5 style=solid label="personalizes learning" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_79.txt b/test/diagrams/scanned_easy/diagrams_79.txt
new file mode 100644
index 0000000000000000000000000000000000000000..feb7c7e7c96e29fe38ef1c3a07e366d89f8b9579
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_79.txt
@@ -0,0 +1,9 @@
+<AI in Online Education, delivers lectures, Virtual Labs and Simulations>
+<AI in Online Education, personalizes learning, Accessibility Features>
+<Accessibility Features, connectedTo, Test Preparation Courses>
+<Adaptive Learning Technologies, connectedTo, Micro_credential Programs>
+<Learning Analytics, designs content, Adaptive Learning Technologies>
+<Micro_credential Programs, applies learning design, Student Engagement Strategies>
+<Student Engagement Strategies, hosts MOOCs, Virtual Labs and Simulations>
+<Test Preparation Courses, manages hardware, Learning Analytics>
+<Virtual Labs and Simulations, connectedTo, AI in Online Education>
diff --git a/test/diagrams/scanned_easy/diagrams_8.dot b/test/diagrams/scanned_easy/diagrams_8.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8621fdecdb6b7527bde114526768a50811287c61
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_8.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=TB
+	N0 [label="Document Drafting" color="#795548" fillcolor="#D7CCC8" shape=multipledocuments style=filled]
+	N1 [label="Settlement Negotiation" color="#388E3C" fillcolor="#C8E6C9" shape=database style=filled]
+	N2 [label="Closing Argument" color="#795548" fillcolor="#D7CCC8" shape=rect style=filled]
+	N3 [label="Patent Application" color="#795548" fillcolor="#D7CCC8" shape=parallelogram style=filled]
+	N4 [label="Case Filing" color="#795548" fillcolor="#D7CCC8" shape=ellipse style=filled]
+	N5 [label="Jury Selection" color="#795548" fillcolor="#D7CCC8" shape=box style=filled]
+	N6 [label="Judgment Writing" color="#6FE1D5" fillcolor="#C9EFEC" shape=hexagon style=filled]
+	N7 [label="Witness Testimony" color="#388E3C" fillcolor="#C8E6C9" shape=database style=filled]
+	N8 [label="Intel Property Licensing" color="#388E3C" fillcolor="#C8E6C9" shape=document style=filled]
+	N9 [label="Client Interview" color="#6FE1D5" fillcolor="#C9EFEC" shape=rectangle style=filled]
+	N10 [label="Evidence Collection" color="#388E3C" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	N11 [label="Trial Session" color="#6FE1D5" fillcolor="#C9EFEC" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#795548" penwidth=1.5 style=dashed label="executes" dir=forward]
+	N3 -> N4 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="counsels" dir=forward]
+	N5 -> N6 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#6FE1D5" penwidth=1.5 style=solid label="submits" dir=forward]
+	N7 -> N8 [color="#6FE1D5" penwidth=1.5 style=dashed label="reviews" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="appeals" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed label="advises" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N0 [color="#000000" penwidth=1.5 style=solid label="files" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_8.txt b/test/diagrams/scanned_easy/diagrams_8.txt
new file mode 100644
index 0000000000000000000000000000000000000000..569864aeaff74434f484b031f0a211f7d2b7ff6c
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_8.txt
@@ -0,0 +1,12 @@
+<Case Filing, counsels, Jury Selection>
+<Client Interview, advises, Evidence Collection>
+<Closing Argument, executes, Patent Application>
+<Document Drafting, connectedTo, Settlement Negotiation>
+<Evidence Collection, connectedTo, Trial Session>
+<Intel Property Licensing, appeals, Client Interview>
+<Judgment Writing, files, Document Drafting>
+<Judgment Writing, submits, Witness Testimony>
+<Jury Selection, connectedTo, Judgment Writing>
+<Patent Application, connectedTo, Case Filing>
+<Settlement Negotiation, connectedTo, Closing Argument>
+<Witness Testimony, reviews, Intel Property Licensing>
diff --git a/test/diagrams/scanned_easy/diagrams_80.dot b/test/diagrams/scanned_easy/diagrams_80.dot
new file mode 100644
index 0000000000000000000000000000000000000000..67774d31b796b6a9bbb756d1cdce7e6143b9e4c5
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_80.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=RL
+	N0 [label="Platform Selection" color="#4DB6AC" fillcolor="#E0F2F1" shape=preparation style=filled]
+	N1 [label="Course Audit Options" color="#4DB6AC" fillcolor="#E0F2F1" shape=multipledocuments style=filled]
+	N2 [label="Learner Support" color="#DCE775" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N3 [label="Gamification for Engagement" color="#DCE775" fillcolor="#F9FBE7" shape=document style=filled]
+	N4 [label="Learner Analytics" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N5 [label="Discussion Forum Management" color="#DCE775" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N6 [label="Engagement Metrics Tracking" color="#DCE775" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N7 [label="Verified Track Management" color="#DCE775" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N8 [label="Employer Recognition" color="#4DB6AC" fillcolor="#E0F2F1" shape=inputoutput style=filled]
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=solid label="hosts platforms" dir=forward]
+	N1 -> N2 [color="#4DB6AC" penwidth=1.5 style=dashed label="translates content" dir=forward]
+	N2 -> N3 [color="#E91E63" penwidth=1.5 style=solid label="provides readings" dir=forward]
+	N3 -> N4 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#DCE775" penwidth=1.5 style=solid label="researches impact" dir=forward]
+	N7 -> N8 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N2 -> N7 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N0 -> N2 [color="#000000" penwidth=1.5 style=dashed label="facilitates peer review" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_80.txt b/test/diagrams/scanned_easy/diagrams_80.txt
new file mode 100644
index 0000000000000000000000000000000000000000..48f922f9e7313756c4ecc2397e897fdfe41c4196
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_80.txt
@@ -0,0 +1,10 @@
+<Course Audit Options, translates content, Learner Support>
+<Discussion Forum Management, connectedTo, Engagement Metrics Tracking>
+<Engagement Metrics Tracking, researches impact, Verified Track Management>
+<Gamification for Engagement, connectedTo, Learner Analytics>
+<Learner Analytics, connectedTo, Discussion Forum Management>
+<Learner Support, connectedTo, Verified Track Management>
+<Learner Support, provides readings, Gamification for Engagement>
+<Platform Selection, facilitates peer review, Learner Support>
+<Platform Selection, hosts platforms, Course Audit Options>
+<Verified Track Management, connectedTo, Employer Recognition>
diff --git a/test/diagrams/scanned_easy/diagrams_81.dot b/test/diagrams/scanned_easy/diagrams_81.dot
new file mode 100644
index 0000000000000000000000000000000000000000..050c276115931072b0ae8969bbbd3facf30d6e9f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_81.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=LR
+	N0 [label="Writing Skills Improvement" color="#3F51B5" fillcolor="#C5CAE9" shape=inputoutput style=filled]
+	N1 [label="Interactive Exercises" color="#03A9F4" fillcolor="#B3E5FC" shape=hexagon style=filled]
+	N2 [label="English Proficiency Test Prep" color="#3F51B5" fillcolor="#C5CAE9" shape=rectangle style=filled]
+	N3 [label="Video Lecture Production" color="#3F51B5" fillcolor="#C5CAE9" shape=inputoutput style=filled]
+	N4 [label="Flashcard Creation" color="#AF56A6" fillcolor="#DDCEDD" shape=document style=filled]
+	N5 [label="Study Environment Optimization" color="#03A9F4" fillcolor="#B3E5FC" shape=document style=filled]
+	N6 [label="Graduate School Exam Prep" color="#AF56A6" fillcolor="#DDCEDD" shape=database style=filled]
+	N7 [label="Virtual Proctoring" color="#3F51B5" fillcolor="#C5CAE9" shape=rect style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="simulates" dir=forward]
+	N1 -> N2 [color="#AF56A6" penwidth=1.5 style=dashed label="publishes" dir=forward]
+	N2 -> N3 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="distributes" dir=forward]
+	N6 -> N7 [color="#AF56A6" penwidth=1.5 style=dashed label="evaluates" dir=forward]
+	N1 -> N0 [color="#000000" penwidth=1.5 style=dashed label="teaches" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_82.dot b/test/diagrams/scanned_easy/diagrams_82.dot
new file mode 100644
index 0000000000000000000000000000000000000000..32d9f7191f8b93b5df4f62c3a204e9c27785f184
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_82.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=TB
+	N0 [label="Native Speaker Interaction" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N1 [label="Grammar Practice" color="#A188D0" fillcolor="#DACBE3" shape=predefinedprocess style=filled]
+	N2 [label="Sentence Construction Practice" color="#A188D0" fillcolor="#DACBE3" shape=multipledocuments style=filled]
+	N3 [label="Reading Comprehension" color="#A188D0" fillcolor="#DACBE3" shape=predefinedprocess style=filled]
+	N4 [label="Virtual Reality Language Environments" color="#FF5722" fillcolor="#FFCCBC" shape=predefinedprocess style=filled]
+	N5 [label="Flashcard Systems" color="#607D8B" fillcolor="#CFD8DC" shape=parallelogram style=filled]
+	N6 [label="Online Tutoring Sessions" color="#A188D0" fillcolor="#DACBE3" shape=document style=filled]
+	N7 [label="Vocabulary Acquisition" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	N8 [label="Cultural Immersion" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	N9 [label="Language for Specific Purposes" color="#FF5722" fillcolor="#FFCCBC" shape=predefinedprocess style=filled]
+	N10 [label="Audio Lessons" color="#A188D0" fillcolor="#DACBE3" shape=database style=filled]
+	N0 -> N1 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="assesses" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="listens" dir=forward]
+	N3 -> N4 [color="#607D8B" penwidth=1.5 style=solid label="transcribes" dir=forward]
+	N4 -> N5 [color="#A188D0" penwidth=1.5 style=solid label="practices" dir=forward]
+	N5 -> N6 [color="#607D8B" penwidth=1.5 style=solid label="immerses" dir=forward]
+	N6 -> N7 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#607D8B" penwidth=1.5 style=dashed label="improves" dir=forward]
+	N7 -> N0 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N0 -> N7 [color="#607D8B" penwidth=1.5 style=solid label="corrects" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_82.txt b/test/diagrams/scanned_easy/diagrams_82.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8a4a5bab9a173e3c0489daa0e237f51250cfea12
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_82.txt
@@ -0,0 +1,12 @@
+<Cultural Immersion, connectedTo, Language for Specific Purposes>
+<Flashcard Systems, immerses, Online Tutoring Sessions>
+<Grammar Practice, assesses, Sentence Construction Practice>
+<Language for Specific Purposes, improves, Audio Lessons>
+<Native Speaker Interaction, connectedTo, Grammar Practice>
+<Native Speaker Interaction, corrects, Vocabulary Acquisition>
+<Online Tutoring Sessions, connectedTo, Vocabulary Acquisition>
+<Reading Comprehension, transcribes, Virtual Reality Language Environments>
+<Sentence Construction Practice, listens, Reading Comprehension>
+<Virtual Reality Language Environments, practices, Flashcard Systems>
+<Vocabulary Acquisition, connectedTo, Cultural Immersion>
+<Vocabulary Acquisition, connectedTo, Native Speaker Interaction>
diff --git a/test/diagrams/scanned_easy/diagrams_84.txt b/test/diagrams/scanned_easy/diagrams_84.txt
new file mode 100644
index 0000000000000000000000000000000000000000..83d64a7fbe3e39e7f23bd1f1200eb1e004eaf5e8
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_84.txt
@@ -0,0 +1,12 @@
+<Agricultural Nutrition Impact, monitors, Personalized Nutrition Plans>
+<Dietary Supplement Review, connectedTo, Food Label Interpretation>
+<Disease_Specific Nutrition, audits, Food Waste Reduction>
+<Food Label Interpretation, connectedTo, Disease_Specific Nutrition>
+<Food Safety Education, prepares, Supplement Recommendation>
+<Food Waste Reduction, assesses, Nutrigenomics Research>
+<Food Waste Reduction, processes, Sports Nutrition>
+<Nutrigenomics Research, connectedTo, Agricultural Nutrition Impact>
+<Nutrigenomics Research, connectedTo, Dietary Supplement Review>
+<Personalized Nutrition Plans, improves, Sustainable Food Systems>
+<Sports Nutrition, connectedTo, Dietary Supplement Review>
+<Supplement Recommendation, tests, Sports Nutrition>
diff --git a/test/diagrams/scanned_easy/diagrams_86.txt b/test/diagrams/scanned_easy/diagrams_86.txt
new file mode 100644
index 0000000000000000000000000000000000000000..929ff2e9d2437a5f6a6fade2c4cb9238f1c300fa
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_86.txt
@@ -0,0 +1,9 @@
+<Detox Programs, relaxes, Digital Detox>
+<Digital Detox, connectedTo, Journaling for Wellness>
+<Immune System Support, connectedTo, Detox Programs>
+<Journaling for Wellness, promotes, Massage Therapy>
+<Massage Therapy, assesses, Meditation Coaching>
+<Meditation Coaching, balances, Sleep Optimization>
+<Nutrition Guidance, develops, Meditation Coaching>
+<Nutrition Guidance, monitors, Digital Detox>
+<Sleep Optimization, connectedTo, Immune System Support>
diff --git a/test/diagrams/scanned_easy/diagrams_87.dot b/test/diagrams/scanned_easy/diagrams_87.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1fc0738f0f46e23822bb9ce094601fb237c82c8a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_87.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=RL
+	N0 [label="Healthcare Interior Design" color="#FFC2C2" fillcolor="#FFEBEB" shape=vnode_shape style=filled]
+	N1 [label="3D Rendering" color="#94C0C0" fillcolor="#CADEDE" shape=inputoutput style=filled]
+	N2 [label="Lighting Design" color="#A188D0" fillcolor="#DACBE3" shape=predefinedprocess style=filled]
+	N3 [label="Sustainable Design Practices" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	N4 [label="Construction Documentation" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N5 [label="Site Measurement" color="#94C0C0" fillcolor="#CADEDE" shape=hexagon style=filled]
+	N6 [label="Mood Board Creation" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+	N7 [label="Hospitality Interior Design" color="#FFC2C2" fillcolor="#FFEBEB" shape=predefinedprocess style=filled]
+	N8 [label="Feng Shui Consultation" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N9 [label="Acoustic Treatment" color="#FFC2C2" fillcolor="#FFEBEB" shape=rectangle style=filled]
+	N0 -> N1 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFC2C2" penwidth=1.5 style=solid label="surveys" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFC2C2" penwidth=1.5 style=dashed label="arranges" dir=forward]
+	N7 -> N8 [color="#A188D0" penwidth=1.5 style=dashed label="furnishes" dir=forward]
+	N8 -> N9 [color="#FFC2C2" penwidth=1.5 style=dashed label="showcases" dir=forward]
+	N2 -> N7 [color="#FFC2C2" penwidth=1.5 style=dashed label="styles" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_88.dot b/test/diagrams/scanned_easy/diagrams_88.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0d0c5a0636f8b38739978f16584737365aad7ee9
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_88.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=RL
+	N0 [label="Noise Reduction for Speech Input" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	N1 [label="Sentiment Analysis in Translation" color="#CFCFCF" fillcolor="#F6F6F6" shape=database style=filled]
+	N2 [label="Customer Support Translation" color="#A1887F" fillcolor="#EFEBE9" shape=rectangle style=filled]
+	N3 [label="Medical Translation" color="#A1887F" fillcolor="#EFEBE9" shape=parallelogram style=filled]
+	N4 [label="Social Media Translation" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N5 [label="Language Detection" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N6 [label="Wearable Translation Devices" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+	N7 [label="Neural Machine Translation" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#A1887F" penwidth=1.5 style=dashed label="understands" dir=forward]
+	N2 -> N3 [color="#CFCFCF" penwidth=1.5 style=solid label="improves" dir=forward]
+	N3 -> N4 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="transcribes" dir=forward]
+	N6 -> N7 [color="#CFCFCF" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N0 -> N7 [color="#FFDA4E" penwidth=1.5 style=solid label="captures" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_88.txt b/test/diagrams/scanned_easy/diagrams_88.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6e47f514d1a8e5b88f08a446e2fdb6f25d22c20f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_88.txt
@@ -0,0 +1,8 @@
+<Customer Support Translation, improves, Medical Translation>
+<Language Detection, transcribes, Wearable Translation Devices>
+<Medical Translation, connectedTo, Social Media Translation>
+<Noise Reduction for Speech Input, captures, Neural Machine Translation>
+<Noise Reduction for Speech Input, connectedTo, Sentiment Analysis in Translation>
+<Sentiment Analysis in Translation, understands, Customer Support Translation>
+<Social Media Translation, connectedTo, Language Detection>
+<Wearable Translation Devices, optimizes, Neural Machine Translation>
diff --git a/test/diagrams/scanned_easy/diagrams_89.dot b/test/diagrams/scanned_easy/diagrams_89.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d17d7e754dc8dfd16f2edd876bc5a41d42dc90d3
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_89.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=RL
+	N0 [label="Payload Integration" color="#4DB6AC" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N1 [label="Data Processing from Drones" color="#4DB6AC" fillcolor="#E0F2F1" shape=action style=filled]
+	N2 [label="Flight Control System" color="#4DB6AC" fillcolor="#E0F2F1" shape=predefinedprocess style=filled]
+	N3 [label="Inspection" color="#4CAF50" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N4 [label="Communication Systems" color="#DCE775" fillcolor="#F9FBE7" shape=vnode_shape style=filled]
+	N5 [label="Security Surveillance" color="#4DB6AC" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	N6 [label="Geofencing Implementation" color="#DCE775" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	N7 [label="Precision Agriculture" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N8 [label="Counter_Drone Systems" color="#4CAF50" fillcolor="#C8E6C9" shape=action style=filled]
+	N9 [label="Ground Control Station Development" color="#4CAF50" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N10 [label="Flight Planning Software" color="#4DB6AC" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N11 [label="Videography" color="#4CAF50" fillcolor="#C8E6C9" shape=preparation style=filled]
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=dashed label="receives" dir=forward]
+	N1 -> N2 [color="#4DB6AC" penwidth=1.5 style=solid label="processes" dir=forward]
+	N2 -> N3 [color="#4CAF50" penwidth=1.5 style=dashed label="visualizes" dir=forward]
+	N3 -> N4 [color="#4DB6AC" penwidth=1.5 style=solid label="designs" dir=forward]
+	N4 -> N5 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#4DB6AC" penwidth=1.5 style=dashed label="maps" dir=forward]
+	N7 -> N8 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#DCE775" penwidth=1.5 style=solid label="collects" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid label="regulates" dir=forward]
+	N8 -> N10 [color="#000000" penwidth=1.5 style=dashed label="identifies" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_89.txt b/test/diagrams/scanned_easy/diagrams_89.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1b02af3800c015f4849beb65ed070e549965b025
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_89.txt
@@ -0,0 +1,12 @@
+<Communication Systems, connectedTo, Security Surveillance>
+<Counter_Drone Systems, connectedTo, Ground Control Station Development>
+<Counter_Drone Systems, identifies, Flight Planning Software>
+<Data Processing from Drones, processes, Flight Control System>
+<Flight Control System, visualizes, Inspection>
+<Flight Planning Software, regulates, Videography>
+<Geofencing Implementation, maps, Precision Agriculture>
+<Ground Control Station Development, collects, Flight Planning Software>
+<Inspection, designs, Communication Systems>
+<Payload Integration, receives, Data Processing from Drones>
+<Precision Agriculture, connectedTo, Counter_Drone Systems>
+<Security Surveillance, connectedTo, Geofencing Implementation>
diff --git a/test/diagrams/scanned_easy/diagrams_9.dot b/test/diagrams/scanned_easy/diagrams_9.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8f8dfba257a6a231b5fc8d66c5e1ba628ced9149
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_9.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=RL
+	N0 [label="Sorting Center" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	N1 [label="Air Cargo Handling" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N2 [label="Driver Check_in" color="#FBC02D" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+	N3 [label="Inventory Sync" color="#FBC02D" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	N4 [label="Consolidation" color="#90A4AE" fillcolor="#ECEFF1" shape=rect style=filled]
+	N5 [label="Demand Forecasting Integration" color="#A2D0FF" fillcolor="#E8F0FF" shape=hexagon style=filled]
+	N6 [label="Order Picking" color="#FBC02D" fillcolor="#FFFDE7" shape=diamond style=filled]
+	N7 [label="Supply Chain Visibility" color="#FBC02D" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+	N8 [label="Rail Transport Coordination" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N9 [label="Return Logistics" color="#A2D0FF" fillcolor="#E8F0FF" shape=predefinedprocess style=filled]
+	N10 [label="Delay Notification" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N11 [label="Hub Transfer" color="#90A4AE" fillcolor="#ECEFF1" shape=parallelogram style=filled]
+	N0 -> N1 [color="#FBC02D" penwidth=1.5 style=solid label="automates" dir=forward]
+	N1 -> N2 [color="#90A4AE" penwidth=1.5 style=dashed label="notifies" dir=forward]
+	N2 -> N3 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FBC02D" penwidth=1.5 style=dashed label="syncs" dir=forward]
+	N10 -> N11 [color="#A2D0FF" penwidth=1.5 style=solid label="secures" dir=forward]
+	N9 -> N7 [color="#000000" penwidth=1.5 style=dashed label="loads" dir=forward]
+	N6 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_9.txt b/test/diagrams/scanned_easy/diagrams_9.txt
new file mode 100644
index 0000000000000000000000000000000000000000..280d0672997df52f14d3a94193d01798e8020528
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_9.txt
@@ -0,0 +1,13 @@
+<Air Cargo Handling, notifies, Driver Check_in>
+<Consolidation, connectedTo, Demand Forecasting Integration>
+<Delay Notification, secures, Hub Transfer>
+<Demand Forecasting Integration, connectedTo, Order Picking>
+<Driver Check_in, connectedTo, Inventory Sync>
+<Inventory Sync, connectedTo, Consolidation>
+<Order Picking, connectedTo, Delay Notification>
+<Order Picking, connectedTo, Supply Chain Visibility>
+<Rail Transport Coordination, connectedTo, Return Logistics>
+<Return Logistics, loads, Supply Chain Visibility>
+<Return Logistics, syncs, Delay Notification>
+<Sorting Center, automates, Air Cargo Handling>
+<Supply Chain Visibility, connectedTo, Rail Transport Coordination>
diff --git a/test/diagrams/scanned_easy/diagrams_90.txt b/test/diagrams/scanned_easy/diagrams_90.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1ab70d2a631eee59e3c51a267b8dbc6078fc5be3
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_90.txt
@@ -0,0 +1,10 @@
+<Decision_Making Algorithms, connectedTo, Path Planning>
+<Ethical Decision_Making, connectedTo, Driver Monitoring Systems>
+<Fleet Management, certifies, Ethical Decision_Making>
+<Fleet Management, connectedTo, Decision_Making Algorithms>
+<Hardware Design, alerts, Fleet Management>
+<Map Data Management, regulates, Ethical Decision_Making>
+<Over_the_Air Updates, connectedTo, Simulation and Testing>
+<Path Planning, senses, Map Data Management>
+<Remote Operation Capability, connectedTo, Hardware Design>
+<Simulation and Testing, manufactures, Remote Operation Capability>
diff --git a/test/diagrams/scanned_easy/diagrams_91.dot b/test/diagrams/scanned_easy/diagrams_91.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1bf5f559da37f37431bdcf96f3a143880dd7b6a5
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_91.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=LR
+	N0 [label="Customer Support" color="#03A9F4" fillcolor="#B3E5FC" shape=rect style=filled]
+	N1 [label="Payment Processing" color="#AB47BC" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N2 [label="Maintenance Scheduling" color="#03A9F4" fillcolor="#B3E5FC" shape=diamond style=filled]
+	N3 [label="Autonomous Shared Vehicles" color="#03A9F4" fillcolor="#B3E5FC" shape=action style=filled]
+	N4 [label="Scooter_sharing Services" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+	N5 [label="Micro_mobility Management" color="#03A9F4" fillcolor="#B3E5FC" shape=inputoutput style=filled]
+	N6 [label="Vehicle Rebalancing" color="#80DDEA" fillcolor="#D3F7F9" shape=predefinedprocess style=filled]
+	N7 [label="Smart City Integration" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+	N8 [label="Car_sharing Services" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N0 -> N1 [color="#80DDEA" penwidth=1.5 style=solid label="complies" dir=forward]
+	N1 -> N2 [color="#80DDEA" penwidth=1.5 style=solid label="pays" dir=forward]
+	N2 -> N3 [color="#80DDEA" penwidth=1.5 style=solid label="services" dir=forward]
+	N3 -> N4 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#80DDEA" penwidth=1.5 style=solid label="rates" dir=forward]
+	N1 -> N7 [color="#AB47BC" penwidth=1.5 style=solid label="manages" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_92.dot b/test/diagrams/scanned_easy/diagrams_92.dot
new file mode 100644
index 0000000000000000000000000000000000000000..dc42055a3fa3237b69932912e22b9d3f5e9fd74f
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_92.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=LR
+	N0 [label="Navigation to Open Space" color="#D3EB9F" fillcolor="#F8FDD3" shape=rectangle style=filled]
+	N1 [label="Data Analytics for Parking Usage" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+	N2 [label="On_Street Parking Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=predefinedprocess style=filled]
+	N3 [label="Fleet Parking Solutions" color="#D3EB9F" fillcolor="#F8FDD3" shape=diamond style=filled]
+	N4 [label="Real_Time Information Display" color="#00BCD4" fillcolor="#B2EBF2" shape=multipledocuments style=filled]
+	N5 [label="Permit Management" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+	N6 [label="Barrier Gate Control" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	N7 [label="License Plate Recognition" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N0 -> N1 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#D3EB9F" penwidth=1.5 style=solid label="controls" dir=forward]
+	N3 -> N4 [color="#73C6BC" penwidth=1.5 style=solid label="communicates" dir=forward]
+	N4 -> N5 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#73C6BC" penwidth=1.5 style=solid label="repairs" dir=forward]
+	N6 -> N7 [color="#D3EB9F" penwidth=1.5 style=dashed label="informs" dir=forward]
+	N0 -> N2 [color="#73C6BC" penwidth=1.5 style=dashed label="directs" dir=forward]
+	N4 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_92.txt b/test/diagrams/scanned_easy/diagrams_92.txt
new file mode 100644
index 0000000000000000000000000000000000000000..605c6472faf82c76440118c2b1ea95b1f274fccd
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_92.txt
@@ -0,0 +1,9 @@
+<Barrier Gate Control, informs, License Plate Recognition>
+<Data Analytics for Parking Usage, connectedTo, On_Street Parking Management>
+<Fleet Parking Solutions, communicates, Real_Time Information Display>
+<Navigation to Open Space, connectedTo, Data Analytics for Parking Usage>
+<Navigation to Open Space, directs, On_Street Parking Management>
+<On_Street Parking Management, controls, Fleet Parking Solutions>
+<Permit Management, repairs, Barrier Gate Control>
+<Real_Time Information Display, connectedTo, Barrier Gate Control>
+<Real_Time Information Display, connectedTo, Permit Management>
diff --git a/test/diagrams/scanned_easy/diagrams_93.txt b/test/diagrams/scanned_easy/diagrams_93.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8d797e35aecbc5557dcfa5ebd35fb891e336d1a1
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_93.txt
@@ -0,0 +1,11 @@
+<Agent Network Management, connectedTo, Personalized Ticket Offers>
+<Box Office Management, monitors, Concert Ticketing>
+<Concert Ticketing, connectedTo, Event Creation>
+<Customer Relationship Management Integration, upgrades, Seat Mapping>
+<Event Creation, refunds, Fan Loyalty Programs>
+<Fan Loyalty Programs, connectedTo, Order Confirmation>
+<Fan Loyalty Programs, protects, Group Booking Management>
+<Group Booking Management, connectedTo, Box Office Management>
+<Museum Ticketing, connectedTo, Agent Network Management>
+<Order Confirmation, connectedTo, Customer Relationship Management Integration>
+<Personalized Ticket Offers, designs, Group Booking Management>
diff --git a/test/diagrams/scanned_easy/diagrams_94.txt b/test/diagrams/scanned_easy/diagrams_94.txt
new file mode 100644
index 0000000000000000000000000000000000000000..95532be59de12e59491dbc81b9db5a7a27975e41
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_94.txt
@@ -0,0 +1,10 @@
+<Cryptographic Security, connectedTo, System Certification>
+<Public Trust Building, communicates, Voter Registration>
+<Remote Voting Solutions, casts, Voting Machine Design>
+<Remote Voting Solutions, educates, Touchscreen Voting Machines>
+<Software Integrity Checks, ensures, Public Trust Building>
+<System Certification, upgrades, Software Integrity Checks>
+<Touchscreen Voting Machines, connectedTo, Cryptographic Security>
+<Voter Registration, designs, Remote Voting Solutions>
+<Voting Machine Design, facilitates, Touchscreen Voting Machines>
+<Zero_Knowledge Proofs for Privacy, connectedTo, Touchscreen Voting Machines>
diff --git a/test/diagrams/scanned_easy/diagrams_98.dot b/test/diagrams/scanned_easy/diagrams_98.dot
new file mode 100644
index 0000000000000000000000000000000000000000..19cecce3351708d24c0bff24c0c56efbbf91198a
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_98.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=RL
+	N0 [label="Long_Term Digital Preservation" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	N1 [label="Community Archiving Projects" color="#FFF176" fillcolor="#FFFDE7" shape=diamond style=filled]
+	N2 [label="Records Transfer Processes" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+	N3 [label="User Interface for Digital Archives" color="#4CAF50" fillcolor="#C8E6C9" shape=document style=filled]
+	N4 [label="Collection Management Policy" color="#FFF176" fillcolor="#FFFDE7" shape=document style=filled]
+	N5 [label="Digital Forensics for Archives" color="#4CAF50" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N6 [label="Emulation for Obsolete Formats" color="#FFF176" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N7 [label="Metadata Creation" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N8 [label="Intellectual Property Rights Management" color="#4CAF50" fillcolor="#C8E6C9" shape=document style=filled]
+	N0 -> N1 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFF176" penwidth=1.5 style=dashed label="manages" dir=forward]
+	N2 -> N3 [color="#CD8FF2" penwidth=1.5 style=solid label="digitizes" dir=forward]
+	N3 -> N4 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFF176" penwidth=1.5 style=dashed label="governs" dir=forward]
+	N5 -> N6 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#4CAF50" penwidth=1.5 style=solid label="appraises" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="transcribes" dir=forward]
+	N8 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_easy/diagrams_98.txt b/test/diagrams/scanned_easy/diagrams_98.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d6a06d5f67f4ab60afab5aac64a230dac12562ce
--- /dev/null
+++ b/test/diagrams/scanned_easy/diagrams_98.txt
@@ -0,0 +1,9 @@
+<Collection Management Policy, governs, Digital Forensics for Archives>
+<Community Archiving Projects, manages, Records Transfer Processes>
+<Digital Forensics for Archives, connectedTo, Emulation for Obsolete Formats>
+<Emulation for Obsolete Formats, appraises, Metadata Creation>
+<Intellectual Property Rights Management, connectedTo, Collection Management Policy>
+<Long_Term Digital Preservation, connectedTo, Community Archiving Projects>
+<Metadata Creation, transcribes, Intellectual Property Rights Management>
+<Records Transfer Processes, digitizes, User Interface for Digital Archives>
+<User Interface for Digital Archives, connectedTo, Collection Management Policy>
diff --git a/test/graphviz/scanned_hard/graphviz_100.txt b/test/graphviz/scanned_hard/graphviz_100.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3114fbbb90c0c2eb84257fa03cee76cea0e5f4b5
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_100.txt
@@ -0,0 +1,11 @@
+<Bias Mitigation, connectedTo, Sanctions Compliance>
+<Code of Conduct Implementation, audits, Bias Mitigation>
+<Compliance Training, procedures, Ethical Leadership Development>
+<Data Privacy Compliance, connectedTo, Anti_Money Laundering Compliance>
+<Data Privacy Compliance, counsels, Code of Conduct Implementation>
+<Ethical Leadership Development, develops, Risk Assessment>
+<Regulatory Interpretation, connectedTo, Stakeholder Engagement on Ethics>
+<Regulatory Interpretation, transparency, Compliance Training>
+<Risk Assessment, connectedTo, Data Privacy Compliance>
+<Sanctions Compliance, connectedTo, Regulatory Interpretation>
+<Stakeholder Engagement on Ethics, connectedTo, Compliance Training>
diff --git a/test/graphviz/scanned_hard/graphviz_102.dot b/test/graphviz/scanned_hard/graphviz_102.dot
new file mode 100644
index 0000000000000000000000000000000000000000..928173e42f0f037f3acaf6ac008bb0c93c7d399e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_102.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=LR
+	N0 [label="Port Security" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N1 [label="Forensic Investigation of Attacks" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N2 [label="Insider Threat Programs" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N3 [label="Radicalization Prevention" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	N4 [label="Terrorism Financing Interdiction" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N5 [label="Bomb Disposal" color="#F06292" fillcolor="#FCE4EC" shape=oval style=filled]
+	N6 [label="Information Sharing" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N7 [label="Biometric Screening" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+	N8 [label="Border Security" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=prevents color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=border_controls color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=propaganda_counters color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N4 [label=drills color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N0 -> N7 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_102.txt b/test/graphviz/scanned_hard/graphviz_102.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d8b523536f2e636376bcd329131a9ca22318109b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_102.txt
@@ -0,0 +1,10 @@
+<Biometric Screening, connectedTo, Border Security>
+<Bomb Disposal, connectedTo, Information Sharing>
+<Forensic Investigation of Attacks, prevents, Insider Threat Programs>
+<Information Sharing, connectedTo, Biometric Screening>
+<Insider Threat Programs, border_controls, Radicalization Prevention>
+<Insider Threat Programs, drills, Terrorism Financing Interdiction>
+<Port Security, connectedTo, Biometric Screening>
+<Port Security, connectedTo, Forensic Investigation of Attacks>
+<Radicalization Prevention, connectedTo, Terrorism Financing Interdiction>
+<Terrorism Financing Interdiction, propaganda_counters, Bomb Disposal>
diff --git a/test/graphviz/scanned_hard/graphviz_103.dot b/test/graphviz/scanned_hard/graphviz_103.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a93f4298143dcb75d1631701b113a1053e18d6ca
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_103.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=TD
+	N0 [label="Pattern Recognition" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	N1 [label="Legal Compliance" color="#80DDEA" fillcolor="#D3F7F9" shape=box style=filled]
+	N2 [label="Environmental Monitoring" color="#80DDEA" fillcolor="#D3F7F9" shape=oval style=filled]
+	N3 [label="Ethical Guidelines" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N4 [label="Behavioral Analytics" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N5 [label="Traffic Surveillance" color="#E0E0E0" fillcolor="#EBEBEB" shape=hexagon style=filled]
+	N6 [label="Privacy Concerns Mitigation" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N7 [label="Remote Sensing" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N8 [label="Intrusion Detection" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	N9 [label="Drone Surveillance" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	N0 -> N1 [label=manages color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=accesses color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=blocks color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=observes color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=processes color="#E0E0E0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=verifies color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=shares color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N2 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N3 -> N0 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_103.txt b/test/graphviz/scanned_hard/graphviz_103.txt
new file mode 100644
index 0000000000000000000000000000000000000000..30ddb0a7e66649c6d450ec944814ad025de2253d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_103.txt
@@ -0,0 +1,11 @@
+<Behavioral Analytics, connectedTo, Traffic Surveillance>
+<Environmental Monitoring, connectedTo, Ethical Guidelines>
+<Ethical Guidelines, blocks, Behavioral Analytics>
+<Ethical Guidelines, connectedTo, Pattern Recognition>
+<Intrusion Detection, shares, Drone Surveillance>
+<Legal Compliance, accesses, Environmental Monitoring>
+<Pattern Recognition, manages, Legal Compliance>
+<Privacy Concerns Mitigation, processes, Remote Sensing>
+<Remote Sensing, verifies, Intrusion Detection>
+<Traffic Surveillance, connectedTo, Environmental Monitoring>
+<Traffic Surveillance, observes, Privacy Concerns Mitigation>
diff --git a/test/graphviz/scanned_hard/graphviz_104.dot b/test/graphviz/scanned_hard/graphviz_104.dot
new file mode 100644
index 0000000000000000000000000000000000000000..270f0fff2391d8447396a41f7b4cc95ad7569550
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_104.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=TD
+	N0 [label="Conflict Resolution Training" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N1 [label="Target Hardening" color="#FFF176" fillcolor="#FFFDE7" shape=octagon style=filled]
+	N2 [label="Crime Prevention Through Education" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N3 [label="Technology for Prevention" color="#3F51B5" fillcolor="#C5CAE9" shape=oval style=filled]
+	N4 [label="Rehabilitation Programs" color="#3F51B5" fillcolor="#C5CAE9" shape=octagon style=filled]
+	N5 [label="Gang Intervention" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	N6 [label="Cybercrime Prevention" color="#A1D7CD" fillcolor="#EDF5F3" shape=box style=filled]
+	N7 [label="Sexual Assault Prevention" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	N8 [label="Robbery Prevention" color="#FFF176" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N9 [label="CCTV Installation" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N0 -> N1 [label=licenses color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=responds color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=investigates color="#A1D7CD" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#A1D7CD" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#3F51B5" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=hotspots color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#A1D7CD" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=deters color="#A1D7CD" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N8 [color="#A1D7CD" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N4 [color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_105.dot b/test/graphviz/scanned_hard/graphviz_105.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5d43635288f5d9f3bde8e5ede1105500c8f8fa10
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_105.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=LR
+	N0 [label="Invasive Species Control" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N1 [label="GIS Mapping for Habitats" color="#6EB76D" fillcolor="#E9F7E8" shape=folder style=filled]
+	N2 [label="Marine Conservation" color="#6EB76D" fillcolor="#E9F7E8" shape=diamond style=filled]
+	N3 [label="Protected Area Management" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N4 [label="Translocation of Species" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N5 [label="Law Enforcement" color="#388E3C" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N6 [label="Policy Advocacy" color="#388E3C" fillcolor="#C8E6C9" shape=diamond style=filled]
+	N7 [label="Drone_based Monitoring" color="#6EB76D" fillcolor="#E9F7E8" shape=plaintext style=filled]
+	N8 [label="Research and Development in Conservation" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N0 -> N1 [label=data_collects color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=warns color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=eco_tourism_promotes color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=surveys color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N8 -> N5 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_106.dot b/test/graphviz/scanned_hard/graphviz_106.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a326c2af50edad396dca167d295fae778f36f8d0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_106.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=TD
+	N0 [label="Marine Pollution Monitoring" color="#607D8B" fillcolor="#CFD8DC" shape=ellipse style=filled]
+	N1 [label="Ocean Data Archiving" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N2 [label="Marine Biodiversity Assessment" color="#A188D0" fillcolor="#DACBE3" shape=parallelogram style=filled]
+	N3 [label="Marine Hazards Assessment" color="#A188D0" fillcolor="#DACBE3" shape=plaintext style=filled]
+	N4 [label="Hydrothermal Vent Exploration" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+	N5 [label="Seabed Resource Exploration" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N6 [label="Coastal Erosion Research" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	N7 [label="Sea Level Monitoring" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N8 [label="Ocean Renewable Energy" color="#FFF9AE" fillcolor="#FFFCE6" shape=plaintext style=filled]
+	N9 [label="Marine Ecosystem Health" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N0 -> N1 [label=collects_data color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=develops_instruments color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=educates color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=geology color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N3 [label=interprets color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_107.txt b/test/graphviz/scanned_hard/graphviz_107.txt
new file mode 100644
index 0000000000000000000000000000000000000000..693b33c6f1bf07d15359ce4e3a976bcaf5d29de5
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_107.txt
@@ -0,0 +1,13 @@
+<Aftershock Analysis, connectedTo, Computational Seismology>
+<Aftershock Analysis, connectedTo, Seismic Data Processing>
+<Building Code Development, predicts, Aftershock Analysis>
+<Computational Seismology, connectedTo, Glacial Seismology>
+<Deep Earth Seismology, warns, P_Wave or S_Wave Distinction>
+<Epicenter Location, ground_motion, Building Code Development>
+<Epicenter Location, tsunamis_monitors, Paleoseismology>
+<Glacial Seismology, reports, Nuclear Test Monitoring>
+<Nuclear Test Monitoring, connectedTo, Deep Earth Seismology>
+<Paleoseismology, connectedTo, Building Code Development>
+<Seismic Data Processing, connectedTo, Seismic Wave Analysis>
+<Seismic Wave Analysis, earthquakes_studies, Tectonic Stress Measurement>
+<Tectonic Stress Measurement, connectedTo, Epicenter Location>
diff --git a/test/graphviz/scanned_hard/graphviz_108.txt b/test/graphviz/scanned_hard/graphviz_108.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9c921c962babc4db2321283333070c03b3dd423f
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_108.txt
@@ -0,0 +1,11 @@
+<Cancer Genomics, algorithms_develops, Rare Disease Genomics>
+<DNA Sequencing, connectedTo, Cancer Genomics>
+<Disease Gene Identification, connectedTo, Genome_Wide Association Studies>
+<Gene Annotation, connectedTo, Methylation Analysis>
+<Gene Annotation, data_generates, Genomic Editing>
+<Gene Therapy Development, licenses, Genome Assembly>
+<Genome Assembly, connectedTo, Genomic Data Visualization>
+<Genome_Wide Association Studies, complies, Gene Annotation>
+<Genomic Data Visualization, connectedTo, Genomic Editing>
+<Methylation Analysis, analyzes, DNA Sequencing>
+<Rare Disease Genomics, connectedTo, Gene Therapy Development>
diff --git a/test/graphviz/scanned_hard/graphviz_109.dot b/test/graphviz/scanned_hard/graphviz_109.dot
new file mode 100644
index 0000000000000000000000000000000000000000..154b102b572566e1c3d34fc842e714764332ecd6
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_109.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=TD
+	N0 [label="Cross_Lingual Speech Recognition" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N1 [label="Disordered Speech Recognition" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N2 [label="Command and Control" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N3 [label="Language Modeling" color="#FFE69C" fillcolor="#FFF9D4" shape=Mdiamond style=filled]
+	N4 [label="Speech Emotion Recognition" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N5 [label="Feature Extraction" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+	N6 [label="Voice Activity Detection" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+	N7 [label="Robust Speech Recognition" color="#FFCC80" fillcolor="#FFF0CC" shape=oval style=filled]
+	N8 [label="Contextual Understanding" color="#E0E0E0" fillcolor="#EBEBEB" shape=octagon style=filled]
+	N9 [label="Meeting Transcription" color="#FFE69C" fillcolor="#FFF9D4" shape=plaintext style=filled]
+	N10 [label="Keyword Spotting" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N0 -> N1 [label=understands color="#E0E0E0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=identifies color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=synthesizes color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=licenses color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=acoustic_models color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=supports color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=outputs color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N5 -> N7 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N1 -> N7 [label=develops color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_109.txt b/test/graphviz/scanned_hard/graphviz_109.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d1a9a6062679b69d4588f1f89e22e777ceb19886
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_109.txt
@@ -0,0 +1,12 @@
+<Command and Control, identifies, Language Modeling>
+<Contextual Understanding, outputs, Meeting Transcription>
+<Cross_Lingual Speech Recognition, understands, Disordered Speech Recognition>
+<Disordered Speech Recognition, connectedTo, Command and Control>
+<Disordered Speech Recognition, develops, Robust Speech Recognition>
+<Feature Extraction, connectedTo, Robust Speech Recognition>
+<Feature Extraction, connectedTo, Voice Activity Detection>
+<Language Modeling, synthesizes, Speech Emotion Recognition>
+<Meeting Transcription, connectedTo, Keyword Spotting>
+<Robust Speech Recognition, supports, Contextual Understanding>
+<Speech Emotion Recognition, licenses, Feature Extraction>
+<Voice Activity Detection, acoustic_models, Robust Speech Recognition>
diff --git a/test/graphviz/scanned_hard/graphviz_11.txt b/test/graphviz/scanned_hard/graphviz_11.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b03d9ee98d1e44cf027dc30f154665fda14f8e93
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_11.txt
@@ -0,0 +1,10 @@
+<Aquaculture Farming, certifies, Packaging for Sale>
+<Barn Cleaning, connectedTo, Market Transportation>
+<Disease Detection, conserves, Grain Drying>
+<Grain Drying, connectedTo, Barn Cleaning>
+<Grain Drying, develops, Supply Chain to Retailers>
+<Market Transportation, connectedTo, Aquaculture Farming>
+<Packaging for Sale, connectedTo, Soil Nutrient Management>
+<Pest Spraying, fertilizes, Supply Chain to Retailers>
+<Soil Nutrient Management, innovates, Pest Spraying>
+<Supply Chain to Retailers, connectedTo, Organic Certification>
diff --git a/test/graphviz/scanned_hard/graphviz_110.dot b/test/graphviz/scanned_hard/graphviz_110.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a2b9d71a1aec351785eca5234cc7ff8649e12f94
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_110.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=LR
+	N0 [label="Spam Detection" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N1 [label="Customer Feedback Analysis" color="#A1D7CD" fillcolor="#EDF5F3" shape=box style=filled]
+	N2 [label="Text Clustering" color="#FFDA4E" fillcolor="#FFE88D" shape=hexagon style=filled]
+	N3 [label="Knowledge Graph Construction" color="#A1D7CD" fillcolor="#EDF5F3" shape=parallelogram style=filled]
+	N4 [label="Automated Content Tagging" color="#A1D7CD" fillcolor="#EDF5F3" shape=box style=filled]
+	N5 [label="Plagiarism Detection" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N6 [label="Patent Analysis" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N7 [label="Resume Parsing" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N8 [label="Information Extraction" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N9 [label="Biomedical Text Mining" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N0 -> N1 [label=entities color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#A1D7CD" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=reports color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=optimizes color="#A1D7CD" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=summarizes color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=models color="#A1D7CD" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#A1D7CD" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=disambiguates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N7 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N0 -> N4 [label=identifies color="#A1D7CD" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_110.txt b/test/graphviz/scanned_hard/graphviz_110.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cae72773483550224097f637461ee9248cb758c0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_110.txt
@@ -0,0 +1,11 @@
+<Automated Content Tagging, summarizes, Plagiarism Detection>
+<Customer Feedback Analysis, connectedTo, Text Clustering>
+<Information Extraction, disambiguates, Biomedical Text Mining>
+<Knowledge Graph Construction, connectedTo, Resume Parsing>
+<Knowledge Graph Construction, optimizes, Automated Content Tagging>
+<Patent Analysis, connectedTo, Resume Parsing>
+<Plagiarism Detection, models, Patent Analysis>
+<Resume Parsing, connectedTo, Information Extraction>
+<Spam Detection, entities, Customer Feedback Analysis>
+<Spam Detection, identifies, Automated Content Tagging>
+<Text Clustering, reports, Knowledge Graph Construction>
diff --git a/test/graphviz/scanned_hard/graphviz_112.dot b/test/graphviz/scanned_hard/graphviz_112.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b006a903a846734d4fb846160e0007b60c8e658d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_112.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=RL
+	N0 [label=Hyperautomation color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N1 [label="Finance Process Automation" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N2 [label="User Training for Automated Systems" color="#FF5722" fillcolor="#FFCCBC" shape=octagon style=filled]
+	N3 [label="Data Entry Automation" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N4 [label="Email Automation" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N5 [label="Process Mapping" color="#FFC085" fillcolor="#FFDAB9" shape=diamond style=filled]
+	N6 [label="Automation Opportunity Identification" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N7 [label="Customer Service Automation" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N8 [label="Audit Trail for Automation" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N9 [label="IT Operations Automation" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N0 -> N1 [color="#FFC085" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=improves_accuracy color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=reports_generates color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=approvals_manages color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=automates color="#FFC085" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=AI_applies color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N8 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N4 [label=manages color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_112.txt b/test/graphviz/scanned_hard/graphviz_112.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ea3ff5349adf78ca4e6a1e0bdcc5b6a168c601b8
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_112.txt
@@ -0,0 +1,11 @@
+<Audit Trail for Automation, connectedTo, IT Operations Automation>
+<Automation Opportunity Identification, connectedTo, Customer Service Automation>
+<Customer Service Automation, connectedTo, Audit Trail for Automation>
+<Customer Service Automation, manages, Email Automation>
+<Data Entry Automation, approvals_manages, Email Automation>
+<Email Automation, automates, Process Mapping>
+<Finance Process Automation, improves_accuracy, User Training for Automated Systems>
+<Hyperautomation, connectedTo, Finance Process Automation>
+<Process Mapping, AI_applies, Automation Opportunity Identification>
+<User Training for Automated Systems, connectedTo, Audit Trail for Automation>
+<User Training for Automated Systems, reports_generates, Data Entry Automation>
diff --git a/test/graphviz/scanned_hard/graphviz_113.dot b/test/graphviz/scanned_hard/graphviz_113.dot
new file mode 100644
index 0000000000000000000000000000000000000000..95badd5ad63a00f7f9fd71b5b838e9120e63da1c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_113.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=BT
+	N0 [label="Risk_Based Quality Control" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N1 [label="Software Quality Assurance" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N2 [label="Statistical Process Control" color="#4DB6AC" fillcolor="#E0F2F1" shape=Mdiamond style=filled]
+	N3 [label="Process Monitoring" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N4 [label="Quality Control Tools" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N5 [label="Calibration of Instruments" color="#F44336" fillcolor="#FFCDD2" shape=oval style=filled]
+	N6 [label="Service Quality Management" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N7 [label="Lean Principles in Quality" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+	N8 [label="Trend Analysis" color="#4DB6AC" fillcolor="#E0F2F1" shape=octagon style=filled]
+	N9 [label="Root Cause Analysis" color="#FBC02D" fillcolor="#FFFDE7" shape=plaintext style=filled]
+	N10 [label="Supplier Quality Management" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	N0 -> N1 [label=standards_sets color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=defects_detects color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=risk_manages color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=certifies color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=systems_controls color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [label=automates color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N6 [label=complies color="#F44336" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_114.dot b/test/graphviz/scanned_hard/graphviz_114.dot
new file mode 100644
index 0000000000000000000000000000000000000000..418a4dcdc75323f09411722b2cabe7898cb9e7ac
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_114.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=LR
+	N0 [label="On_Premise ERP Solutions" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N1 [label="Supply Chain Management" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N2 [label="System Upgrade" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+	N3 [label="ERP Consulting" color="#FFF9AE" fillcolor="#FFFCE6" shape=Mdiamond style=filled]
+	N4 [label="Module Implementation" color="#4DD0E1" fillcolor="#C9F0F0" shape=octagon style=filled]
+	N5 [label="Manufacturing Operations" color="#BCB88A" fillcolor="#F5F5DC" shape=oval style=filled]
+	N6 [label="Business Intelligence Integration" color="#4DD0E1" fillcolor="#C9F0F0" shape=plaintext style=filled]
+	N7 [label="Compliance Reporting" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N8 [label="Inventory Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=hexagon style=filled]
+	N9 [label="Sales and Distribution" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+	N0 -> N1 [label=dashboards_generates color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=procurements_handles color="#4DD0E1" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=customizes color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=manufacturing_manages color="#4DD0E1" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=monitors color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=inventories_manages color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N8 [label=sales_manages color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_114.txt b/test/graphviz/scanned_hard/graphviz_114.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8133db297f558e926702d70cc44966a5a6d8cbe5
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_114.txt
@@ -0,0 +1,10 @@
+<Business Intelligence Integration, manufacturing_manages, Compliance Reporting>
+<Compliance Reporting, monitors, Inventory Management>
+<ERP Consulting, connectedTo, Module Implementation>
+<Inventory Management, inventories_manages, Sales and Distribution>
+<Manufacturing Operations, connectedTo, Business Intelligence Integration>
+<Module Implementation, customizes, Manufacturing Operations>
+<On_Premise ERP Solutions, dashboards_generates, Supply Chain Management>
+<Supply Chain Management, connectedTo, System Upgrade>
+<System Upgrade, procurements_handles, ERP Consulting>
+<System Upgrade, sales_manages, Inventory Management>
diff --git a/test/graphviz/scanned_hard/graphviz_115.dot b/test/graphviz/scanned_hard/graphviz_115.dot
new file mode 100644
index 0000000000000000000000000000000000000000..651555cd8e56c1cbf51b01300cc4cbff1331f5c9
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_115.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=BT
+	N0 [label="Crop Health Monitoring" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N1 [label="Decision Support Systems for Farmers" color="#E91E63" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	N2 [label="Forestry Management with Digital Tools" color="#CD8FF2" fillcolor="#ECCFF5" shape=oval style=filled]
+	N3 [label="IoT in Agriculture" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N4 [label="Blockchain for Agri_Supply Chain" color="#CD8FF2" fillcolor="#ECCFF5" shape=oval style=filled]
+	N5 [label="Predictive Analytics for Harvest" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	N6 [label="Drone Monitoring" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N7 [label="Herd Health Monitoring" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+	N8 [label="Livestock Feeding Automation" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+	N9 [label="Smart Livestock Monitoring" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N0 -> N1 [label=blockchain_traces color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=AI_applies color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=guides color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=plans color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=tracks_equipment color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=soil_tests color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N4 [color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_115.txt b/test/graphviz/scanned_hard/graphviz_115.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1ab015a2b3ba1f38ba6652a5661c44dc8fea8da9
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_115.txt
@@ -0,0 +1,10 @@
+<Blockchain for Agri_Supply Chain, plans, Predictive Analytics for Harvest>
+<Crop Health Monitoring, blockchain_traces, Decision Support Systems for Farmers>
+<Decision Support Systems for Farmers, connectedTo, Forestry Management with Digital Tools>
+<Drone Monitoring, tracks_equipment, Herd Health Monitoring>
+<Forestry Management with Digital Tools, AI_applies, IoT in Agriculture>
+<Herd Health Monitoring, connectedTo, Livestock Feeding Automation>
+<IoT in Agriculture, guides, Blockchain for Agri_Supply Chain>
+<Livestock Feeding Automation, connectedTo, Blockchain for Agri_Supply Chain>
+<Livestock Feeding Automation, soil_tests, Smart Livestock Monitoring>
+<Predictive Analytics for Harvest, connectedTo, Drone Monitoring>
diff --git a/test/graphviz/scanned_hard/graphviz_116.dot b/test/graphviz/scanned_hard/graphviz_116.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4f88f59cc0a4b09e0f898d26761da6a7be6bcb97
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_116.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=BT
+	N0 [label="Prize Pool Management" color="#A1887F" fillcolor="#EFEBE9" shape=ellipse style=filled]
+	N1 [label="Nutrition for Esports Athletes" color="#82DAFF" fillcolor="#C8EDFF" shape=box style=filled]
+	N2 [label="Legal Advisory for Esports" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+	N3 [label="Rules and Regulations Enforcement" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+	N4 [label="Physical Conditioning for Players" color="#82DAFF" fillcolor="#C8EDFF" shape=box style=filled]
+	N5 [label="Esports Team Ownership" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+	N6 [label="Ticketing Sales" color="#A188DB" fillcolor="#DED7F0" shape=hexagon style=filled]
+	N7 [label="League Management" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+	N8 [label="Live Streaming Production" color="#A188DB" fillcolor="#DED7F0" shape=plaintext style=filled]
+	N9 [label="Fan Community Building" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+	N10 [label="Esports Analytics" color="#82DAFF" fillcolor="#C8EDFF" shape=box style=filled]
+	N11 [label="Venue Setup" color="#A1887F" fillcolor="#EFEBE9" shape=ellipse style=filled]
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=plays color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=innovates color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=content_produces color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=advertises color="#A1887F" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=teams_forms color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#82DAFF" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#82DAFF" dir=forward penwidth=1.5 style=solid]
+	N1 -> N9 [color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_116.txt b/test/graphviz/scanned_hard/graphviz_116.txt
new file mode 100644
index 0000000000000000000000000000000000000000..43e8b5b4e1fa14291a0cf0d65ff1f57958bcedec
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_116.txt
@@ -0,0 +1,12 @@
+<Esports Analytics, connectedTo, Venue Setup>
+<Esports Team Ownership, connectedTo, Ticketing Sales>
+<Fan Community Building, connectedTo, Esports Analytics>
+<League Management, connectedTo, Live Streaming Production>
+<Legal Advisory for Esports, innovates, Rules and Regulations Enforcement>
+<Live Streaming Production, teams_forms, Fan Community Building>
+<Nutrition for Esports Athletes, connectedTo, Fan Community Building>
+<Nutrition for Esports Athletes, plays, Legal Advisory for Esports>
+<Physical Conditioning for Players, advertises, Esports Team Ownership>
+<Prize Pool Management, connectedTo, Nutrition for Esports Athletes>
+<Rules and Regulations Enforcement, content_produces, Physical Conditioning for Players>
+<Ticketing Sales, connectedTo, League Management>
diff --git a/test/graphviz/scanned_hard/graphviz_117.dot b/test/graphviz/scanned_hard/graphviz_117.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7262689873b780e0dfa36b49b32f43a15b63fbb2
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_117.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=TD
+	N0 [label="Genetic Basis of Brain Disorders" color="#4DD0E1" fillcolor="#C9F0F0" shape=ellipse style=filled]
+	N1 [label="Neural Data Analysis" color="#4DD0E1" fillcolor="#C9F0F0" shape=hexagon style=filled]
+	N2 [label="Behavioral Neuroscience" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N3 [label="Systems Neuroscience" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N4 [label="Neural Network Analysis" color="#4DD0E1" fillcolor="#C9F0F0" shape=box style=filled]
+	N5 [label="Learning Mechanisms Study" color="#FFC2C2" fillcolor="#FFEBEB" shape=hexagon style=filled]
+	N6 [label=Connectomics color="#FFC2C2" fillcolor="#FFEBEB" shape=diamond style=filled]
+	N7 [label="Motor Control Research" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N0 -> N1 [label=trains color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=models color="#4DD0E1" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=interprets_data color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=discovers color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N4 [label=cognition_studies color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_118.dot b/test/graphviz/scanned_hard/graphviz_118.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bc60fbd800fabc57556c81f8b2ef6806f2dfb7be
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_118.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=TD
+	N0 [label="Climate Change Impact on Heritage" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N1 [label="Artifact Conservation" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	N2 [label="Underwater Cultural Heritage" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N3 [label="Disaster Preparedness for Heritage" color="#9FA9E1" fillcolor="#D6D9F0" shape=parallelogram style=filled]
+	N4 [label="Heritage Site Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N5 [label="Digital Storytelling" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N6 [label="Archival Management" color="#AED581" fillcolor="#F0F4C3" shape=folder style=filled]
+	N7 [label="Augmented Reality Tours" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N8 [label="Virtual Reality Recreations" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N0 -> N1 [label=artifacts_excavates color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=catalogs color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=sites_surveys color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=data_collects color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=technologies_applies color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N7 -> N5 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_119.dot b/test/graphviz/scanned_hard/graphviz_119.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ac3e78fd9d02224414663a99d596a8b6e8fd34e2
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_119.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=TD
+	N0 [label="Risk Assessment" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	N1 [label="Directed Evolution" color="#42A5F5" fillcolor="#F1F8FF" shape=hexagon style=filled]
+	N2 [label=Bio_computation color="#42A5F5" fillcolor="#F1F8FF" shape=plaintext style=filled]
+	N3 [label="Microbial Factories" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+	N4 [label="Bio_logic Gates" color="#42A5F5" fillcolor="#F1F8FF" shape=oval style=filled]
+	N5 [label="Cell_Free Systems" color="#FFC2C2" fillcolor="#FFEBEB" shape=hexagon style=filled]
+	N6 [label="Biosensor Development" color="#4CAF50" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N7 [label="Sustainable Chemical Production" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	N8 [label="High_Throughput Screening" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N9 [label="Biofoundry Operations" color="#4CAF50" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N0 -> N1 [label=designs color="#4CAF50" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=engineers color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=circuits_designs color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=publishes color="#4CAF50" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=programs color="#4CAF50" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=optimizes color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N7 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_119.txt b/test/graphviz/scanned_hard/graphviz_119.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3e3c7a7566a6a89dcb685f43d060e537677cdc80
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_119.txt
@@ -0,0 +1,10 @@
+<Bio_computation, connectedTo, Microbial Factories>
+<Bio_logic Gates, connectedTo, Cell_Free Systems>
+<Biosensor Development, publishes, Sustainable Chemical Production>
+<Cell_Free Systems, circuits_designs, Biosensor Development>
+<Directed Evolution, connectedTo, Bio_computation>
+<Directed Evolution, connectedTo, Sustainable Chemical Production>
+<High_Throughput Screening, optimizes, Biofoundry Operations>
+<Microbial Factories, engineers, Bio_logic Gates>
+<Risk Assessment, designs, Directed Evolution>
+<Sustainable Chemical Production, programs, High_Throughput Screening>
diff --git a/test/graphviz/scanned_hard/graphviz_12.dot b/test/graphviz/scanned_hard/graphviz_12.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9163a2fee9e8772a7ad8e797e21ceaf20a6ba5d5
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_12.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=LR
+	N0 [label="Group Tour Coordination" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	N1 [label="Sightseeing Scheduling" color="#92C79A" fillcolor="#E8F0EA" shape=box style=filled]
+	N2 [label="Concert Ticketing" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N3 [label="Local Transport" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	N4 [label="Tourist Information Desk" color="#92C79A" fillcolor="#E8F0EA" shape=folder style=filled]
+	N5 [label="Spa Appointment" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N6 [label="Hotel Check_in" color="#DCE775" fillcolor="#FCFCE7" shape=diamond style=filled]
+	N7 [label="Custom Tour Package Creation" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	N8 [label="Visa Application" color="#F06292" fillcolor="#FCE4EC" shape=plaintext style=filled]
+	N9 [label="Booking Modification" color="#DCE775" fillcolor="#FCFCE7" shape=oval style=filled]
+	N10 [label="Event Reservation" color="#F06292" fillcolor="#FCE4EC" shape=Mdiamond style=filled]
+	N11 [label="Cruise Ship Boarding" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	N0 -> N1 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=consults color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=visits color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=sells color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label="collects feedback" color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=assists color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=returns color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=documents color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N5 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N0 -> N11 [label=personalizes color="#92C79A" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_120.dot b/test/graphviz/scanned_hard/graphviz_120.dot
new file mode 100644
index 0000000000000000000000000000000000000000..aa8e1a977ecc82cdbd87a60458bf1395d44ec9aa
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_120.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=TD
+	N0 [label="Parent Engagement Tools" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N1 [label="Learning Management System Development" color="#FF8A65" fillcolor="#FBE9E7" shape=diamond style=filled]
+	N2 [label="Virtual Classrooms" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+	N3 [label="Massive Open Online Courses" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	N4 [label="Digital Textbooks" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N5 [label="Virtual Labs" color="#FF8A65" fillcolor="#FBE9E7" shape=octagon style=filled]
+	N6 [label="Gamified Learning" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N7 [label="Learning Analytics Dashboards" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N8 [label="Adaptive Learning Systems" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N0 -> N1 [label=parents_engages color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=privacy_protects color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=designs color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=creates color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N0 [label=students_supports color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N0 -> N3 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_120.txt b/test/graphviz/scanned_hard/graphviz_120.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e600290567e374b01a1612f92983b8f43691df87
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_120.txt
@@ -0,0 +1,10 @@
+<Digital Textbooks, connectedTo, Virtual Labs>
+<Digital Textbooks, students_supports, Parent Engagement Tools>
+<Gamified Learning, designs, Learning Analytics Dashboards>
+<Learning Analytics Dashboards, creates, Adaptive Learning Systems>
+<Learning Management System Development, connectedTo, Virtual Classrooms>
+<Massive Open Online Courses, privacy_protects, Digital Textbooks>
+<Parent Engagement Tools, connectedTo, Massive Open Online Courses>
+<Parent Engagement Tools, parents_engages, Learning Management System Development>
+<Virtual Classrooms, connectedTo, Massive Open Online Courses>
+<Virtual Labs, connectedTo, Gamified Learning>
diff --git a/test/graphviz/scanned_hard/graphviz_121.txt b/test/graphviz/scanned_hard/graphviz_121.txt
new file mode 100644
index 0000000000000000000000000000000000000000..433d3eb4a2f24ed1040491e00d1070e8e81bec8e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_121.txt
@@ -0,0 +1,23 @@
+<Arctic Weather Research, advises, Upper Air Chart Analysis>
+<Arctic Weather Research, connectedTo, Boundary Layer Study>
+<Arctic Weather Research, connectedTo, Climate Data Archiving>
+<Arctic Weather Research, connectedTo, Upper Air Chart Analysis>
+<Arctic Weather Research, researches, Climate Data Archiving>
+<Boundary Layer Study, connectedTo, Climate Data Archiving>
+<Climate Data Archiving, connectedTo, Upper Air Chart Analysis>
+<Flood Prediction, analyzes, Mesoscale Meteorology>
+<Flood Prediction, partOf, Flood Prediction>
+<Humidity Sensing, disseminates, Meteorological Instrument Calibration>
+<Lightning Detection, maintains, Climate Data Archiving>
+<Lightning Detection, partOf, Lightning Detection>
+<Mesoscale Meteorology, connectedTo, Weather Forecasting>
+<Mesoscale Meteorology, partOf, Mesoscale Meteorology>
+<Meteorological Instrument Calibration, connectedTo, Boundary Layer Study>
+<Meteorological Instrument Calibration, connectedTo, Wind Speed and Direction>
+<Meteorological Station Maintenance, connectedTo, Numerical Weather Prediction>
+<Numerical Weather Prediction, connectedTo, Arctic Weather Research>
+<Weather Forecasting, connectedTo, Lightning Detection>
+<Weather Forecasting, partOf, Weather Forecasting>
+<Wind Speed and Direction, connectedTo, Boundary Layer Study>
+<Wind Speed and Direction, connectedTo, Meteorological Station Maintenance>
+<Wind Speed and Direction, generates, Flood Prediction>
diff --git a/test/graphviz/scanned_hard/graphviz_122.txt b/test/graphviz/scanned_hard/graphviz_122.txt
new file mode 100644
index 0000000000000000000000000000000000000000..22b69a03ef0d42ab877f77b2a471623b5daf6acd
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_122.txt
@@ -0,0 +1,21 @@
+<Atmospheric Data Collection, studies, Ocean_Atmosphere Interaction Study>
+<Atmospheric Data Collection, supports, Seasonal Outlook Preparation>
+<Aviation Weather Briefing, connectedTo, Atmospheric Data Collection>
+<Aviation Weather Briefing, partOf, Aviation Weather Briefing>
+<Boundary Layer Study, partOf, Boundary Layer Study>
+<Boundary Layer Study, validates, Aviation Weather Briefing>
+<Drought Monitoring, connectedTo, Tornado Watch or Warning>
+<Flood Prediction, connectedTo, Mesoscale Meteorology>
+<Mesoscale Meteorology, integrates, Atmospheric Data Collection>
+<Meteorological Station Maintenance, connectedTo, Flood Prediction>
+<Ocean_Atmosphere Interaction Study, connectedTo, Humidity Sensing>
+<Seasonal Outlook Preparation, connectedTo, Wind Speed and Direction>
+<Seasonal Outlook Preparation, partOf, Seasonal Outlook Preparation>
+<Severe Weather Warning, connectedTo, Drought Monitoring>
+<Severe Weather Warning, connectedTo, Mesoscale Meteorology>
+<Tornado Watch or Warning, calibrates, Meteorological Station Maintenance>
+<Tornado Watch or Warning, connectedTo, Atmospheric Data Collection>
+<Tornado Watch or Warning, connectedTo, Mesoscale Meteorology>
+<Tornado Watch or Warning, connectedTo, Ocean_Atmosphere Interaction Study>
+<Wind Speed and Direction, connectedTo, Boundary Layer Study>
+<Wind Speed and Direction, partOf, Wind Speed and Direction>
diff --git a/test/graphviz/scanned_hard/graphviz_124.dot b/test/graphviz/scanned_hard/graphviz_124.dot
new file mode 100644
index 0000000000000000000000000000000000000000..31fdf7252089f5444b2d739dca21176033f0fb50
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_124.dot
@@ -0,0 +1,53 @@
+digraph {
+	rankdir=TD
+	N0 [label="Leachate Treatment" color="#E0E0E0" fillcolor="#EBEBEB" shape=ellipse style=filled]
+	N1 [label="Anaerobic Digestion" color="#3F51B5" fillcolor="#C5CAE9" shape=octagon style=filled]
+	N2 [label="Plastic Recycling Technologies" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+	N3 [label="Waste Logistics Optimization" color="#42A5F5" fillcolor="#F1F8FF" shape=oval style=filled]
+	N4 [label="Waste Compaction" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+	N5 [label="Public Education on Waste" color="#3F51B5" fillcolor="#C5CAE9" shape=box style=filled]
+	N6 [label="Waste Management Data Analytics" color="#42A5F5" fillcolor="#F1F8FF" shape=plaintext style=filled]
+	N7 [label="Extended Producer Responsibility" color="#E0E0E0" fillcolor="#EBEBEB" shape=Mdiamond style=filled]
+	N8 [label="Metal Recycling" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+	N9 [label="Landfill Gas Collection" color="#E0E0E0" fillcolor="#EBEBEB" shape=Mdiamond style=filled]
+	N10 [label="Material Recovery Facility Operation" color="#42A5F5" fillcolor="#F1F8FF" shape=octagon style=filled]
+	N11 [label="Recycling Processing" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+	N12 [label="Waste Collection" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	S0 [label="" color="#E0E0E0" fillcolor="#EBEBEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#3F51B5" fillcolor="#C5CAE9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#3F51B5" fillcolor="#C5CAE9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Waste Characterization Study" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label=Composting color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+		nest0_1 [label="Waste Management Policy Development" color="#E0E0E0" fillcolor="#EBEBEB" shape=hexagon style=filled]
+		nest0_2 [label="Container Management" color="#42A5F5" fillcolor="#F1F8FF" shape=hexagon style=filled]
+		nest0_3 [label="Waste_to_Energy Conversion" color="#3F51B5" fillcolor="#C5CAE9" shape=octagon style=filled]
+		nest0_0 -> nest0_1 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#3F51B5" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=monitors color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=disposes color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=innovates color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [label=minimizes color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest0_0 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> S0 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	S0 -> N10 [label=transports color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N12 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [color="#E0E0E0" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N7 [color="#3F51B5" dir=forward penwidth=1.5 style=dashed]
+	N6 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [label=educates color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	M1 -> N10 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_124.txt b/test/graphviz/scanned_hard/graphviz_124.txt
new file mode 100644
index 0000000000000000000000000000000000000000..12395939a49d80b34bf4de3259f09708f5a47e14
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_124.txt
@@ -0,0 +1,27 @@
+<Anaerobic Digestion, connectedTo, Plastic Recycling Technologies>
+<Anaerobic Digestion, educates, Material Recovery Facility Operation>
+<Composting, connectedTo, Waste Management Policy Development>
+<Composting, partOf, Composting>
+<Container Management, connectedTo, Waste_to_Energy Conversion>
+<Container Management, partOf, Container Management>
+<Extended Producer Responsibility, disposes, Metal Recycling>
+<Landfill Gas Collection, innovates, Material Recovery Facility Operation>
+<Leachate Treatment, connectedTo, Anaerobic Digestion>
+<Material Recovery Facility Operation, minimizes, Recycling Processing>
+<Metal Recycling, connectedTo, Landfill Gas Collection>
+<Plastic Recycling Technologies, connectedTo, Extended Producer Responsibility>
+<Plastic Recycling Technologies, connectedTo, Waste Logistics Optimization>
+<Public Education on Waste, connectedTo, Waste Management Data Analytics>
+<Recycling Processing, connectedTo, Waste Collection>
+<Waste Compaction, connectedTo, Extended Producer Responsibility>
+<Waste Compaction, connectedTo, Public Education on Waste>
+<Waste Logistics Optimization, connectedTo, Composting>
+<Waste Logistics Optimization, monitors, Waste Compaction>
+<Waste Management Data Analytics, connectedTo, Extended Producer Responsibility>
+<Waste Management Data Analytics, connectedTo, Material Recovery Facility Operation>
+<Waste Management Data Analytics, connectedTo, Waste Collection>
+<Waste Management Data Analytics, transports, Material Recovery Facility Operation>
+<Waste Management Policy Development, connectedTo, Container Management>
+<Waste Management Policy Development, partOf, Waste Management Policy Development>
+<Waste_to_Energy Conversion, connectedTo, Landfill Gas Collection>
+<Waste_to_Energy Conversion, partOf, Waste_to_Energy Conversion>
diff --git a/test/graphviz/scanned_hard/graphviz_125.txt b/test/graphviz/scanned_hard/graphviz_125.txt
new file mode 100644
index 0000000000000000000000000000000000000000..29b1e6000417e24257804a8ae8fce960cff6205c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_125.txt
@@ -0,0 +1,21 @@
+<Biomedical Waste Handling, connectedTo, Material Recovery Facility Operation>
+<Biomedical Waste Handling, connectedTo, Organics Collection>
+<Landfill Gas Collection, connectedTo, Resource Recovery>
+<Material Recovery Facility Operation, connectedTo, Public Education on Waste>
+<Metal Recycling, connectedTo, Biomedical Waste Handling>
+<Metal Recycling, connectedTo, Organics Collection>
+<Organics Collection, connectedTo, Smart Waste Bins>
+<Public Education on Waste, connectedTo, Organics Collection>
+<Public Education on Waste, connectedTo, Waste Reduction Planning>
+<Smart Waste Bins, connectedTo, Landfill Gas Collection>
+<Smart Waste Bins, connectedTo, Resource Recovery>
+<Smart Waste Bins, connectedTo, Waste Collection>
+<Smart Waste Bins, disposes, Landfill Gas Collection>
+<Smart Waste Bins, minimizes, Resource Recovery>
+<Textile Recycling, connectedTo, Material Recovery Facility Operation>
+<Textile Recycling, partOf, Textile Recycling>
+<Waste Collection, operates, Landfill Gas Collection>
+<Waste Reduction Planning, connectedTo, Zero Waste Initiatives>
+<Waste Reduction Planning, partOf, Waste Reduction Planning>
+<Zero Waste Initiatives, licenses, Textile Recycling>
+<Zero Waste Initiatives, partOf, Zero Waste Initiatives>
diff --git a/test/graphviz/scanned_hard/graphviz_126.txt b/test/graphviz/scanned_hard/graphviz_126.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1627e5cf0435a2ccbc5579e00e96b6034e949878
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_126.txt
@@ -0,0 +1,19 @@
+<Biomedical Waste Handling, connectedTo, Closed_Loop Systems>
+<Biomedical Waste Handling, partOf, Biomedical Waste Handling>
+<Closed_Loop Systems, collects, Container Management>
+<Closed_Loop Systems, partOf, Closed_Loop Systems>
+<Community Recycling Programs, connectedTo, Container Management>
+<Community Recycling Programs, connectedTo, Waste Characterization Study>
+<Container Management, connectedTo, Waste Characterization Study>
+<Hazardous Waste Disposal, compacts, Container Management>
+<Hazardous Waste Disposal, connectedTo, Waste Characterization Study>
+<Hazardous Waste Disposal, connectedTo, Zero Waste Initiatives>
+<Leachate Treatment, connectedTo, Waste Audit>
+<Waste Characterization Study, connectedTo, Waste Audit>
+<Waste Characterization Study, connectedTo, Waste Compaction>
+<Waste Characterization Study, reports, Leachate Treatment>
+<Waste Compaction, connectedTo, Leachate Treatment>
+<Zero Waste Initiatives, compresses, Community Recycling Programs>
+<Zero Waste Initiatives, connectedTo, Container Management>
+<Zero Waste Initiatives, extracts, Waste Characterization Study>
+<Zero Waste Initiatives, incinerates, Biomedical Waste Handling>
diff --git a/test/graphviz/scanned_hard/graphviz_127.dot b/test/graphviz/scanned_hard/graphviz_127.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2377b60f389cecadbeba86d3878df492f6ff7c88
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_127.dot
@@ -0,0 +1,51 @@
+digraph {
+	rankdir=TD
+	N0 [label="Piping Network Repair" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N1 [label="Water Loss Detection" color="#FFC2C2" fillcolor="#FFEBEB" shape=oval style=filled]
+	N2 [label="Drought Management" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+	N3 [label="Pollution Source Identification" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N4 [label="Reservoir Operation" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N5 [label="Billing and Revenue Management" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N6 [label="Hydroelectric Power Generation" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N7 [label="Environmental Flow Assessment" color="#FFC2C2" fillcolor="#FFEBEB" shape=parallelogram style=filled]
+	N8 [label="Groundwater Management" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N9 [label="Ecosystem Protection" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N10 [label="Water Treatment" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N11 [label="Water Quality Monitoring" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+	N12 [label="Public Awareness Campaigns" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N13 [label="Water Meter Reading" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N14 [label="Rainwater Harvesting" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	S0 [label="" color="#E91E63" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#94C0C0" fillcolor="#CADEDE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Stormwater Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Irrigation Management" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+		nest0_1 [label="Water Rights Management" color="#E91E63" fillcolor="#FCE4EC" shape=Mdiamond style=filled]
+		nest0_2 [label="Dam Management" color="#E91E63" fillcolor="#FCE4EC" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [label=collects color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [label=drains color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=supplies color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N3 [label=recycles color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> S0 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N14 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	S0 -> N10 [label=warns color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> M0 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [label=purifies color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	M0 -> N12 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_128.dot b/test/graphviz/scanned_hard/graphviz_128.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7b61c372f4942a62bb614f6569bb3ce95254d328
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_128.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=LR
+	N0 [label="Rainwater Harvesting" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N1 [label="Smart Water Networks" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N2 [label="Aquifer Recharge" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+	N3 [label="Sewer System Inspection" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N4 [label="Wastewater Treatment" color="#BDBDBD" fillcolor="#F5F5F5" shape=Mdiamond style=filled]
+	N5 [label="Water Source Identification" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+	N6 [label="Climate Change Adaptation for Water" color="#FFF9AE" fillcolor="#FFFCE6" shape=hexagon style=filled]
+	N7 [label="Groundwater Management" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+	N8 [label="Reservoir Operation" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N9 [label="Greywater Recycling" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+	N10 [label="Water Loss Detection" color="#FBC02D" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N11 [label="Agricultural Water Use Efficiency" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+	N12 [label="Water Resource Planning" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	S0 [label="" color="#BDBDBD" fillcolor="#F5F5F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Water Quality Monitoring" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Drought Management" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+		nest0_1 [label="Water Conservation Planning" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [label=regulates color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=secures color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=pumps color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest0_0 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N1 [label=models color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N11 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N3 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N7 [label=controls color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_128.txt b/test/graphviz/scanned_hard/graphviz_128.txt
new file mode 100644
index 0000000000000000000000000000000000000000..585825414387ce172b429b2e7a3379c6d3fee77d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_128.txt
@@ -0,0 +1,21 @@
+<Agricultural Water Use Efficiency, connectedTo, Water Resource Planning>
+<Aquifer Recharge, connectedTo, Sewer System Inspection>
+<Climate Change Adaptation for Water, connectedTo, Groundwater Management>
+<Drought Management, connectedTo, Water Conservation Planning>
+<Drought Management, partOf, Drought Management>
+<Greywater Recycling, controls, Groundwater Management>
+<Greywater Recycling, pumps, Water Loss Detection>
+<Groundwater Management, secures, Reservoir Operation>
+<Rainwater Harvesting, regulates, Smart Water Networks>
+<Reservoir Operation, connectedTo, Greywater Recycling>
+<Sewer System Inspection, connectedTo, Drought Management>
+<Sewer System Inspection, connectedTo, Wastewater Treatment>
+<Smart Water Networks, connectedTo, Agricultural Water Use Efficiency>
+<Smart Water Networks, connectedTo, Aquifer Recharge>
+<Smart Water Networks, connectedTo, Greywater Recycling>
+<Smart Water Networks, connectedTo, Sewer System Inspection>
+<Wastewater Treatment, connectedTo, Water Source Identification>
+<Water Conservation Planning, models, Smart Water Networks>
+<Water Conservation Planning, partOf, Water Conservation Planning>
+<Water Loss Detection, connectedTo, Agricultural Water Use Efficiency>
+<Water Source Identification, connectedTo, Climate Change Adaptation for Water>
diff --git a/test/graphviz/scanned_hard/graphviz_129.dot b/test/graphviz/scanned_hard/graphviz_129.dot
new file mode 100644
index 0000000000000000000000000000000000000000..79b4c6fce6947001306012b4a346054836004b1f
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_129.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=BT
+	N0 [label="Reservoir Operation" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N1 [label="Water Resource Planning" color="#FFD54F" fillcolor="#FFF8E1" shape=oval style=filled]
+	N2 [label="Stormwater Management" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N3 [label="Dam Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=Mdiamond style=filled]
+	N4 [label="Drinking Water Standards Compliance" color="#FFD54F" fillcolor="#FFF8E1" shape=Mdiamond style=filled]
+	N5 [label="Water Rights Management" color="#90A4AE" fillcolor="#ECEFF1" shape=diamond style=filled]
+	N6 [label="Water Distribution" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N7 [label="Water Conservation Planning" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	S0 [label="" color="#FFD54F" fillcolor="#FFF8E1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#90A4AE" fillcolor="#ECEFF1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#90A4AE" fillcolor="#ECEFF1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#90A4AE" fillcolor="#ECEFF1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Aquifer Recharge" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Climate Change Adaptation for Water" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+		nest0_1 [label="Water Treatment" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+		nest0_2 [label="Piping Network Repair" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+		nest0_3 [label="Environmental Flow Assessment" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [label=protects color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> nest0_0 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N4 [label=consults color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N0 -> S0 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N2 [label=monitors color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	S0 -> N5 [color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N6 [label=analyzes color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S1 [color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N7 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	S1 -> N5 [label=distributes color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [label=secures color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [label=tests color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N4 [color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_13.dot b/test/graphviz/scanned_hard/graphviz_13.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0cc70ad4ecf0245538596dceea2d59ce953de078
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_13.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=LR
+	N0 [label="Escrow Setup" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N1 [label="Eviction Process" color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+	N2 [label="Commercial Lease Negotiation" color="#C2B2F0" fillcolor="#EFE6FF" shape=diamond style=filled]
+	N3 [label="Tenant Screening" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N4 [label="Investment Property Analysis" color="#C2B2F0" fillcolor="#EFE6FF" shape=hexagon style=filled]
+	N5 [label="Tax Assessment" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N6 [label="Buyer Inquiry" color="#AF56A6" fillcolor="#DDCEDD" shape=ellipse style=filled]
+	N7 [label="Property Marketing" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+	N8 [label="Mortgage Application Assistance" color="#AF56A6" fillcolor="#DDCEDD" shape=diamond style=filled]
+	N9 [label="Maintenance Request" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+	N10 [label="Land Acquisition" color="#C2B2F0" fillcolor="#EFE6FF" shape=parallelogram style=filled]
+	N11 [label="Open House Event" color="#C2B2F0" fillcolor="#EFE6FF" shape=ellipse style=filled]
+	N0 -> N1 [color="#C2B2F0" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=secures color="#C2B2F0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=promotes color="#AF56A6" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=schedules color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=consults color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [label=assigns color="#C2B2F0" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N0 [label=audits color="#C2B2F0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N2 [label=constructs color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_13.txt b/test/graphviz/scanned_hard/graphviz_13.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6823378cbb05bed9527436a9cd9d95b5e560cb5c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_13.txt
@@ -0,0 +1,13 @@
+<Buyer Inquiry, audits, Escrow Setup>
+<Buyer Inquiry, connectedTo, Property Marketing>
+<Commercial Lease Negotiation, connectedTo, Tenant Screening>
+<Escrow Setup, connectedTo, Eviction Process>
+<Eviction Process, connectedTo, Commercial Lease Negotiation>
+<Investment Property Analysis, connectedTo, Tax Assessment>
+<Investment Property Analysis, constructs, Commercial Lease Negotiation>
+<Land Acquisition, assigns, Open House Event>
+<Maintenance Request, consults, Land Acquisition>
+<Mortgage Application Assistance, schedules, Maintenance Request>
+<Property Marketing, promotes, Mortgage Application Assistance>
+<Tax Assessment, connectedTo, Buyer Inquiry>
+<Tenant Screening, secures, Investment Property Analysis>
diff --git a/test/graphviz/scanned_hard/graphviz_130.txt b/test/graphviz/scanned_hard/graphviz_130.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4a2383c90880a1e843ccdf81b3f6bfa6a8058c12
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_130.txt
@@ -0,0 +1,26 @@
+<Advanced Sorting Technologies, connectedTo, Commercial Recycling Solutions>
+<Battery Recycling, connectedTo, Composting Organic Waste>
+<Battery Recycling, supports, Plastic Recycling>
+<Circular Economy Implementation, connectedTo, Advanced Sorting Technologies>
+<Collection Point Management, connectedTo, New Product Manufacturing>
+<Collection Point Management, partOf, Collection Point Management>
+<Commercial Recycling Solutions, converts, Cleaning and Processing>
+<Composting Organic Waste, connectedTo, Plastic Recycling>
+<Composting Organic Waste, connectedTo, Recycling Market Development>
+<Contamination Reduction, connectedTo, Electronic Waste Recycling>
+<Electronic Waste Recycling, connectedTo, Industrial Recycling Programs>
+<End_of_Life Product Management, connectedTo, Recycling Policy Advocacy>
+<Industrial Recycling Programs, complies, Recycling Facility Optimization>
+<Industrial Recycling Programs, connectedTo, End_of_Life Product Management>
+<New Product Manufacturing, connectedTo, Battery Recycling>
+<New Product Manufacturing, partOf, New Product Manufacturing>
+<Plastic Recycling, connectedTo, Contamination Reduction>
+<Recycling Facility Optimization, connectedTo, Collection Point Management>
+<Recycling Facility Optimization, partOf, Recycling Facility Optimization>
+<Recycling Market Development, connectedTo, Advanced Sorting Technologies>
+<Recycling Market Development, connectedTo, Plastic Recycling>
+<Recycling Policy Advocacy, connectedTo, Advanced Sorting Technologies>
+<Recycling Policy Advocacy, tracks, Circular Economy Implementation>
+<Reprocessing into Raw Material, connectedTo, Battery Recycling>
+<Reprocessing into Raw Material, connectedTo, Composting Organic Waste>
+<Reprocessing into Raw Material, connectedTo, Plastic Recycling>
diff --git a/test/graphviz/scanned_hard/graphviz_131.dot b/test/graphviz/scanned_hard/graphviz_131.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d7c92ef148dd34164bf5dd949a5ae4b751b5dea5
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_131.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=LR
+	N0 [label="Electronic Waste Recycling" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N1 [label="Tyre Recycling" color="#FF9800" fillcolor="#FFE0B2" shape=hexagon style=filled]
+	N2 [label="Hazardous Material Recovery" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N3 [label="Metal Recycling" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N4 [label="Construction Waste Recycling" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N5 [label="Recycling Facility Optimization" color="#FF9800" fillcolor="#FFE0B2" shape=octagon style=filled]
+	N6 [label="Advanced Sorting Technologies" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N7 [label="Circular Economy Implementation" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N8 [label="Life Cycle Assessment" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	S0 [label="" color="#FF9800" fillcolor="#FFE0B2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#DCE775" fillcolor="#FCFCE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FF9800" fillcolor="#FFE0B2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Closed_Loop Material Flow" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Public Recycling Programs" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+		nest0_1 [label="Waste Audit for Recycling" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+		nest0_2 [label="Recycling Market Development" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+		nest0_3 [label="Recycling Policy Advocacy" color="#DCE775" fillcolor="#FCFCE7" shape=folder style=filled]
+		nest0_0 -> nest0_1 [label=sorts color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [label=recovers color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label=reduces color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=manufactures color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=partners color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N4 -> nest0_0 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N3 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N3 -> S1 [color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [label=collects color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [label=innovates color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	M0 -> N6 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_131.txt b/test/graphviz/scanned_hard/graphviz_131.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4bb9f90e13d88590321976588c79c9221557d485
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_131.txt
@@ -0,0 +1,23 @@
+<Advanced Sorting Technologies, partners, Circular Economy Implementation>
+<Circular Economy Implementation, connectedTo, Life Cycle Assessment>
+<Construction Waste Recycling, connectedTo, Public Recycling Programs>
+<Construction Waste Recycling, connectedTo, Recycling Facility Optimization>
+<Construction Waste Recycling, innovates, Advanced Sorting Technologies>
+<Electronic Waste Recycling, collects, Advanced Sorting Technologies>
+<Electronic Waste Recycling, reduces, Tyre Recycling>
+<Hazardous Material Recovery, connectedTo, Metal Recycling>
+<Metal Recycling, connectedTo, Advanced Sorting Technologies>
+<Metal Recycling, connectedTo, Construction Waste Recycling>
+<Metal Recycling, connectedTo, Recycling Facility Optimization>
+<Public Recycling Programs, partOf, Public Recycling Programs>
+<Public Recycling Programs, sorts, Waste Audit for Recycling>
+<Recycling Facility Optimization, manufactures, Advanced Sorting Technologies>
+<Recycling Market Development, partOf, Recycling Market Development>
+<Recycling Market Development, recovers, Recycling Policy Advocacy>
+<Recycling Policy Advocacy, connectedTo, Construction Waste Recycling>
+<Recycling Policy Advocacy, partOf, Recycling Policy Advocacy>
+<Tyre Recycling, connectedTo, Hazardous Material Recovery>
+<Tyre Recycling, connectedTo, Life Cycle Assessment>
+<Tyre Recycling, connectedTo, Metal Recycling>
+<Waste Audit for Recycling, connectedTo, Recycling Market Development>
+<Waste Audit for Recycling, partOf, Waste Audit for Recycling>
diff --git a/test/graphviz/scanned_hard/graphviz_133.dot b/test/graphviz/scanned_hard/graphviz_133.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fcbf7b2af4e726dcd1d744e52c18058c606ce602
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_133.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=LR
+	N0 [label="Sustainable Forest Management" color="#81C784" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N1 [label=Reforestation color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+	N2 [label="Pest and Disease Control" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N3 [label="Erosion Control" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N4 [label="Biomass Production from Forests" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N5 [label="Biodiversity Conservation in Forests" color="#AABEC6" fillcolor="#E0E6E9" shape=parallelogram style=filled]
+	N6 [label="Agroforestry Systems" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N7 [label="Wood Product Manufacturing" color="#AABEC6" fillcolor="#E0E6E9" shape=hexagon style=filled]
+	N8 [label="Ecological Restoration" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N9 [label="Recreation Management" color="#00BCD4" fillcolor="#E0F7FA" shape=diamond style=filled]
+	N10 [label="Tree Nursery Management" color="#00BCD4" fillcolor="#E0F7FA" shape=plaintext style=filled]
+	N11 [label="Illegal Logging Prevention" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	S0 [label="" color="#AABEC6" fillcolor="#E0E6E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#00BCD4" fillcolor="#E0F7FA" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Forestry Policy Development" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Logging Operations" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+		nest0_1 [label="Forest Certification" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+		nest0_0 -> nest0_1 [label=harvests color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=enforces color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> nest0_0 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N5 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	N5 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N9 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M0 [label=repairs color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	M0 -> N9 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_134.dot b/test/graphviz/scanned_hard/graphviz_134.dot
new file mode 100644
index 0000000000000000000000000000000000000000..eaf665a53dade0dd692b8bf3166dbaa433cec0be
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_134.dot
@@ -0,0 +1,54 @@
+digraph {
+	rankdir=TD
+	N0 [label="Tree Planting" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	N1 [label="Forest Fire Management" color="#66BB6A" fillcolor="#E8F5E9" shape=folder style=filled]
+	N2 [label="Forest Road Construction" color="#66BB6A" fillcolor="#E8F5E9" shape=octagon style=filled]
+	N3 [label="Forestry Policy Development" color="#66BB6A" fillcolor="#E8F5E9" shape=hexagon style=filled]
+	N4 [label="Soil Conservation" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	N5 [label="Forestry Equipment Maintenance" color="#FFC107" fillcolor="#FFECB3" shape=hexagon style=filled]
+	N6 [label=Afforestation color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+	N7 [label="Climate Change Adaptation in Forests" color="#FFC107" fillcolor="#FFECB3" shape=hexagon style=filled]
+	N8 [label="Non_Timber Forest Product Collection" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	N9 [label="Tree Nursery Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+	N10 [label="Forest Health Monitoring" color="#FFC107" fillcolor="#FFECB3" shape=plaintext style=filled]
+	N11 [label="Biomass Production from Forests" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	S0 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFC107" fillcolor="#FFECB3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Sustainable Forest Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Timber Harvesting" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+		nest0_1 [label="Forest Land Use Planning" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+		nest0_2 [label="Biodiversity Conservation in Forests" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+		nest0_3 [label="Forest Inventory" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [label=enforces color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [label=repairs color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [label=regulates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label=conserves color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=plans color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=reports color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest0_0 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N4 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N5 -> M0 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N9 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M1 [label=irrigates color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M1 [label=protects color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [label=sustains color="#000000" dir=forward penwidth=1.5 style=solid]
+	M1 -> N7 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_134.txt b/test/graphviz/scanned_hard/graphviz_134.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8161819d15d4e74273ebb6fcc634ce83f23e1b3c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_134.txt
@@ -0,0 +1,29 @@
+<Afforestation, connectedTo, Climate Change Adaptation in Forests>
+<Biodiversity Conservation in Forests, partOf, Biodiversity Conservation in Forests>
+<Biodiversity Conservation in Forests, regulates, Forest Inventory>
+<Climate Change Adaptation in Forests, connectedTo, Non_Timber Forest Product Collection>
+<Forest Fire Management, connectedTo, Climate Change Adaptation in Forests>
+<Forest Fire Management, connectedTo, Forestry Equipment Maintenance>
+<Forest Fire Management, connectedTo, Soil Conservation>
+<Forest Fire Management, connectedTo, Tree Nursery Management>
+<Forest Fire Management, plans, Forest Road Construction>
+<Forest Fire Management, sustains, Climate Change Adaptation in Forests>
+<Forest Health Monitoring, connectedTo, Biomass Production from Forests>
+<Forest Inventory, connectedTo, Tree Nursery Management>
+<Forest Inventory, partOf, Forest Inventory>
+<Forest Land Use Planning, partOf, Forest Land Use Planning>
+<Forest Land Use Planning, repairs, Biodiversity Conservation in Forests>
+<Forest Road Construction, connectedTo, Forestry Policy Development>
+<Forest Road Construction, connectedTo, Timber Harvesting>
+<Forest Road Construction, irrigates, Climate Change Adaptation in Forests>
+<Forestry Equipment Maintenance, connectedTo, Afforestation>
+<Forestry Equipment Maintenance, connectedTo, Tree Nursery Management>
+<Forestry Policy Development, connectedTo, Soil Conservation>
+<Forestry Policy Development, connectedTo, Tree Nursery Management>
+<Non_Timber Forest Product Collection, connectedTo, Tree Nursery Management>
+<Soil Conservation, protects, Climate Change Adaptation in Forests>
+<Soil Conservation, reports, Forestry Equipment Maintenance>
+<Timber Harvesting, enforces, Forest Land Use Planning>
+<Timber Harvesting, partOf, Timber Harvesting>
+<Tree Nursery Management, connectedTo, Forest Health Monitoring>
+<Tree Planting, conserves, Forest Fire Management>
diff --git a/test/graphviz/scanned_hard/graphviz_135.dot b/test/graphviz/scanned_hard/graphviz_135.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5d17946aa5756bbbe0de1d9043746771442e4f6e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_135.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=RL
+	N0 [label="Forestry Policy Development" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N1 [label="Drone Surveying for Forests" color="#CDDC39" fillcolor="#E6EE9C" shape=parallelogram style=filled]
+	N2 [label="Biodiversity Conservation in Forests" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N3 [label="Indigenous Forestry Practices" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N4 [label="Forest Carbon Accounting" color="#CDDC39" fillcolor="#E6EE9C" shape=octagon style=filled]
+	N5 [label="Climate Change Adaptation in Forests" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+	N6 [label="Forest Inventory" color="#6FE1D5" fillcolor="#C9EFEC" shape=Mdiamond style=filled]
+	N7 [label="Biomass Production from Forests" color="#6FE1D5" fillcolor="#C9EFEC" shape=parallelogram style=filled]
+	N8 [label=Reforestation color="#CDDC39" fillcolor="#E6EE9C" shape=Mdiamond style=filled]
+	N9 [label=Afforestation color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N10 [label="Forestry Equipment Maintenance" color="#6FE1D5" fillcolor="#C9EFEC" shape=octagon style=filled]
+	N11 [label="Forestry Education" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N12 [label="Illegal Logging Prevention" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+	S0 [label="" color="#9575CD" fillcolor="#EDE7F6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#6FE1D5" fillcolor="#C9EFEC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Tree Planting" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Timber Harvesting" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+		nest0_1 [label="Wildlife Habitat Management" color="#6FE1D5" fillcolor="#C9EFEC" shape=plaintext style=filled]
+		nest0_2 [label="Sawmill Processing" color="#CDDC39" fillcolor="#E6EE9C" shape=folder style=filled]
+		nest0_3 [label="Forest Land Use Planning" color="#CDDC39" fillcolor="#E6EE9C" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [label=restores color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=treats color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=measures color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [label=sells color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [label=manages color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N3 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [label=restricts color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	M1 -> N3 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_135.txt b/test/graphviz/scanned_hard/graphviz_135.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e71f46cc3d813e349b3a4ca145ecbfa8e3853911
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_135.txt
@@ -0,0 +1,25 @@
+<Afforestation, connectedTo, Forestry Equipment Maintenance>
+<Biodiversity Conservation in Forests, connectedTo, Indigenous Forestry Practices>
+<Biomass Production from Forests, connectedTo, Reforestation>
+<Climate Change Adaptation in Forests, connectedTo, Forest Inventory>
+<Climate Change Adaptation in Forests, connectedTo, Timber Harvesting>
+<Drone Surveying for Forests, connectedTo, Biodiversity Conservation in Forests>
+<Drone Surveying for Forests, connectedTo, Indigenous Forestry Practices>
+<Drone Surveying for Forests, manages, Forest Inventory>
+<Drone Surveying for Forests, sells, Reforestation>
+<Forest Carbon Accounting, measures, Climate Change Adaptation in Forests>
+<Forest Inventory, connectedTo, Biomass Production from Forests>
+<Forest Land Use Planning, connectedTo, Indigenous Forestry Practices>
+<Forest Land Use Planning, partOf, Forest Land Use Planning>
+<Forestry Education, connectedTo, Illegal Logging Prevention>
+<Forestry Equipment Maintenance, connectedTo, Forestry Education>
+<Forestry Policy Development, connectedTo, Drone Surveying for Forests>
+<Forestry Policy Development, restricts, Indigenous Forestry Practices>
+<Indigenous Forestry Practices, treats, Forest Carbon Accounting>
+<Reforestation, connectedTo, Afforestation>
+<Sawmill Processing, connectedTo, Forest Land Use Planning>
+<Sawmill Processing, partOf, Sawmill Processing>
+<Timber Harvesting, connectedTo, Wildlife Habitat Management>
+<Timber Harvesting, partOf, Timber Harvesting>
+<Wildlife Habitat Management, partOf, Wildlife Habitat Management>
+<Wildlife Habitat Management, restores, Sawmill Processing>
diff --git a/test/graphviz/scanned_hard/graphviz_136.dot b/test/graphviz/scanned_hard/graphviz_136.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a92d343b766ba1a052747aa061a868b9e65ca1f6
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_136.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=LR
+	N0 [label="Parasite Control" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N1 [label="Nutritional Counseling" color="#D2D2D2" fillcolor="#F0F0F0" shape=Mdiamond style=filled]
+	N2 [label=Microchipping color="#D2D2D2" fillcolor="#F0F0F0" shape=Mdiamond style=filled]
+	N3 [label="Pharmacy Management" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N4 [label=Diagnosis color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+	N5 [label="Medical Record Keeping" color="#D2D2D2" fillcolor="#F0F0F0" shape=diamond style=filled]
+	N6 [label="Wildlife Rehabilitation" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N7 [label="Reproductive Services" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N8 [label="Allergy Testing" color="#D2D2D2" fillcolor="#F0F0F0" shape=octagon style=filled]
+	N9 [label=Prescription color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	S0 [label="" color="#FFCC7A" fillcolor="#FFF6D9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFCC7A" fillcolor="#FFF6D9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFCC7A" fillcolor="#FFF6D9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Animal Sheltering Consultation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Pre_surgical Assessment" color="#7E57C2" fillcolor="#EDE7F6" shape=Mdiamond style=filled]
+		nest0_1 [label="Anesthesia Administration" color="#FFCC7A" fillcolor="#FFF6D9" shape=plaintext style=filled]
+		nest0_0 -> nest0_1 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [label=educates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=anesthetizes color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=diagnoses color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest0_0 [label=recommends color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N4 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N5 -> S0 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [label=reproduces color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S1 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	S1 -> N8 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	S1 -> N4 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_138.txt b/test/graphviz/scanned_hard/graphviz_138.txt
new file mode 100644
index 0000000000000000000000000000000000000000..14bbd0518698895fb8f12e349d544f3f433456be
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_138.txt
@@ -0,0 +1,16 @@
+<Animal Sheltering Consultation, connectedTo, Behavioral Counseling>
+<Animal Sheltering Consultation, partOf, Animal Sheltering Consultation>
+<Behavioral Counseling, connectedTo, Nutritional Counseling>
+<Behavioral Counseling, partOf, Behavioral Counseling>
+<Diagnosis, connectedTo, Spay or Neuter Procedure>
+<Diagnosis, connectedTo, Veterinary Pathology>
+<Diagnosis, regulates, Hospice Care for Animals>
+<Hospice Care for Animals, connectedTo, Livestock Disease Prevention>
+<Livestock Disease Prevention, recommends, Nutritional Counseling>
+<Medical Record Keeping, connectedTo, Veterinary Pathology>
+<Nutritional Counseling, connectedTo, Animal Sheltering Consultation>
+<Nutritional Counseling, connectedTo, Spay or Neuter Procedure>
+<Spay or Neuter Procedure, connectedTo, Medical Record Keeping>
+<Wildlife Rehabilitation, monitors, Diagnosis>
+<Wildlife Rehabilitation, performs, Spay or Neuter Procedure>
+<Wildlife Rehabilitation, sedates, Veterinary Pathology>
diff --git a/test/graphviz/scanned_hard/graphviz_139.dot b/test/graphviz/scanned_hard/graphviz_139.dot
new file mode 100644
index 0000000000000000000000000000000000000000..12e5c7e27eee24d75ea3d2372087b2cf913db8e9
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_139.dot
@@ -0,0 +1,39 @@
+digraph {
+	rankdir=LR
+	N0 [label="Nutritional Meal Preparation" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	N1 [label="Early Literacy Programs" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N2 [label="Teacher_Child Ratio Management" color="#8C9EFF" fillcolor="#D3D7EB" shape=box style=filled]
+	N3 [label="After_School Programs" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N4 [label="Nap Time Supervision" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N5 [label="Special Needs Accommodation" color="#FF5722" fillcolor="#FFCCBC" shape=octagon style=filled]
+	N6 [label="Enrollment and Admissions" color="#8C9EFF" fillcolor="#D3D7EB" shape=box style=filled]
+	N7 [label="Behavior Management" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram style=filled]
+	N8 [label="Group Activities Coordination" color="#61CAC3" fillcolor="#C2E8E6" shape=oval style=filled]
+	N9 [label="Child Protection Policies" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N10 [label="Individualized Attention" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	M0 [label="" color="#FF5722" fillcolor="#FFCCBC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Toddler Activities" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Motor Skill Development" color="#8C9EFF" fillcolor="#D3D7EB" shape=box style=filled]
+		nest0_1 [label="Safety Supervision" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+		nest0_0 -> nest0_1 [label=reports color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=creates color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=organizes color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N7 -> nest0_0 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N6 [label=protects color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [label=teaches color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N5 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N1 -> nest0_0 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N5 -> N9 [label="plays with" color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_14.dot b/test/graphviz/scanned_hard/graphviz_14.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a74163e3a508f7f53a365f54f655061e116a2829
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_14.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=RL
+	N0 [label="Public Warning" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	N1 [label="Incident Reporting" color="#A188D0" fillcolor="#DACBE3" shape=parallelogram style=filled]
+	N2 [label="Evidence Collection" color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+	N3 [label="Hazard Detection" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N4 [label="Search and Rescue Operations" color="#F7BEE0" fillcolor="#FAEBF3" shape=octagon style=filled]
+	N5 [label="Responder Alert" color="#AED581" fillcolor="#F0F4C3" shape=Mdiamond style=filled]
+	N6 [label="Inmate Transport" color="#AED581" fillcolor="#F0F4C3" shape=plaintext style=filled]
+	N7 [label="Patrol Scheduling" color="#A188D0" fillcolor="#DACBE3" shape=plaintext style=filled]
+	N8 [label="Crime Scene Analysis" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N9 [label="K9 Unit Deployment" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N0 -> N1 [label=evacuates color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=plans color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=recovers color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=equips color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=trains color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=patrols color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N9 [label=warns color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	N2 -> N8 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_14.txt b/test/graphviz/scanned_hard/graphviz_14.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1ddd899f15380ed1304144eff5855d9d9f6a45c9
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_14.txt
@@ -0,0 +1,11 @@
+<Crime Scene Analysis, patrols, K9 Unit Deployment>
+<Evidence Collection, connectedTo, Crime Scene Analysis>
+<Evidence Collection, recovers, Hazard Detection>
+<Hazard Detection, connectedTo, Search and Rescue Operations>
+<Incident Reporting, plans, Evidence Collection>
+<Inmate Transport, connectedTo, Patrol Scheduling>
+<Patrol Scheduling, connectedTo, Crime Scene Analysis>
+<Public Warning, evacuates, Incident Reporting>
+<Responder Alert, trains, Inmate Transport>
+<Search and Rescue Operations, equips, Responder Alert>
+<Search and Rescue Operations, warns, K9 Unit Deployment>
diff --git a/test/graphviz/scanned_hard/graphviz_140.dot b/test/graphviz/scanned_hard/graphviz_140.dot
new file mode 100644
index 0000000000000000000000000000000000000000..571636ecb08876e029db59064b8644cb5796e183
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_140.dot
@@ -0,0 +1,34 @@
+digraph {
+	rankdir=TD
+	N0 [label="Creative Arts Activities" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N1 [label="Teacher_Child Ratio Management" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N2 [label="Diaper Changing" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N3 [label="Nutritional Meal Preparation" color="#94C0C0" fillcolor="#CADEDE" shape=oval style=filled]
+	N4 [label="Sensory Play" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N5 [label="Outdoor Exploration" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N6 [label="Behavior Management" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N7 [label="Parent_Teacher Conferences" color="#FFDA4E" fillcolor="#FFE88D" shape=hexagon style=filled]
+	N8 [label="Child Protection Policies" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Group Activities Coordination" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Story Time Reading" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+		nest0_1 [label="Staff Training and Certification" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label=enrolls color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=safeguards color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=communicates color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest0_0 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N2 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N7 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N3 [label=supervises color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_1 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N3 -> N2 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest0_1 [label=complies color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_141.dot b/test/graphviz/scanned_hard/graphviz_141.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6327d71bffe16638a6b9d301f34ca9b9f04cffc6
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_141.dot
@@ -0,0 +1,49 @@
+digraph {
+	rankdir=BT
+	N0 [label="Parent Communication" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+	N1 [label="Nap Time Supervision" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N2 [label="Curriculum Planning" color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+	N3 [label="Group Activities Coordination" color="#A188DB" fillcolor="#DED7F0" shape=octagon style=filled]
+	N4 [label="Child Psychology Application" color="#A188DB" fillcolor="#DED7F0" shape=plaintext style=filled]
+	N5 [label="Toddler Activities" color="#BCB88A" fillcolor="#F5F5DC" shape=Mdiamond style=filled]
+	N6 [label="Outdoor Exploration" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+	N7 [label="After_School Programs" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+	N8 [label="Early Literacy Programs" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N9 [label="Childcare Facility Licensing" color="#A188DB" fillcolor="#DED7F0" shape=plaintext style=filled]
+	N10 [label="Creative Arts Activities" color="#BCB88A" fillcolor="#F5F5DC" shape=folder style=filled]
+	N11 [label="Outdoor Play Supervision" color="#BCB88A" fillcolor="#F5F5DC" shape=hexagon style=filled]
+	N12 [label="Social Skill Development" color="#A188DB" fillcolor="#DED7F0" shape=ellipse style=filled]
+	N13 [label="Potty Training Assistance" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N14 [label="Enrollment and Admissions" color="#A188DB" fillcolor="#DED7F0" shape=ellipse style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#00BCD4" fillcolor="#E0F7FA" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Preschool Education" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Sensory Play" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+		nest0_1 [label="Music and Movement Activities" color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=safeguards color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label="plays with" color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=plans color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [label=assesses color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N12 [color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N6 -> M0 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	M0 -> N9 [color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_141.txt b/test/graphviz/scanned_hard/graphviz_141.txt
new file mode 100644
index 0000000000000000000000000000000000000000..be29594c7ea2af3a18a5789187d2c346a31df2f4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_141.txt
@@ -0,0 +1,23 @@
+<After_School Programs, plays with, Early Literacy Programs>
+<Child Psychology Application, connectedTo, Toddler Activities>
+<Childcare Facility Licensing, plans, Creative Arts Activities>
+<Creative Arts Activities, connectedTo, Outdoor Play Supervision>
+<Curriculum Planning, connectedTo, Group Activities Coordination>
+<Early Literacy Programs, connectedTo, Childcare Facility Licensing>
+<Group Activities Coordination, connectedTo, Child Psychology Application>
+<Music and Movement Activities, connectedTo, Social Skill Development>
+<Music and Movement Activities, partOf, Music and Movement Activities>
+<Nap Time Supervision, connectedTo, Childcare Facility Licensing>
+<Nap Time Supervision, connectedTo, Curriculum Planning>
+<Nap Time Supervision, connectedTo, Early Literacy Programs>
+<Nap Time Supervision, connectedTo, Toddler Activities>
+<Outdoor Exploration, connectedTo, Childcare Facility Licensing>
+<Outdoor Exploration, connectedTo, Sensory Play>
+<Outdoor Exploration, safeguards, After_School Programs>
+<Outdoor Play Supervision, connectedTo, Social Skill Development>
+<Parent Communication, connectedTo, Nap Time Supervision>
+<Potty Training Assistance, connectedTo, Enrollment and Admissions>
+<Sensory Play, connectedTo, Music and Movement Activities>
+<Sensory Play, partOf, Sensory Play>
+<Social Skill Development, assesses, Potty Training Assistance>
+<Toddler Activities, connectedTo, Outdoor Exploration>
diff --git a/test/graphviz/scanned_hard/graphviz_142.dot b/test/graphviz/scanned_hard/graphviz_142.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4cbd7fa8e8649964aae9dfe8460a7491451f16d6
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_142.dot
@@ -0,0 +1,40 @@
+digraph {
+	rankdir=BT
+	N0 [label="Fall Prevention" color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N1 [label="Physical Therapy" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N2 [label="Respite Care" color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N3 [label="Personal Care Assistance" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N4 [label="Elder Abuse Prevention" color="#80DDEA" fillcolor="#D3F7F9" shape=octagon style=filled]
+	N5 [label="Rehabilitation Support" color="#80DDEA" fillcolor="#D3F7F9" shape=box style=filled]
+	N6 [label="Palliative Care" color="#7E57C2" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N7 [label="Family Communication" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N8 [label="Occupational Therapy" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	S0 [label="" color="#7986CB" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Telehealth for Seniors" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Emergency Response System Monitoring" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+		nest0_1 [label="Meal Preparation" color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+		nest0_2 [label="Incontinence Care" color="#80DDEA" fillcolor="#D3F7F9" shape=octagon style=filled]
+		nest0_3 [label="Legal Aid Referrals" color="#80DDEA" fillcolor="#D3F7F9" shape=folder style=filled]
+		nest0_0 -> nest0_1 [label=documents color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [label=coordinates color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=dresses color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=administers color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=optimizes color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest0_0 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N6 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	S0 -> N5 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N5 -> N4 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N0 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N1 -> nest0_2 [label=accompanies color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_142.txt b/test/graphviz/scanned_hard/graphviz_142.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d3a67062223c0cafc5a2ebdb99b1e7e110f54ad4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_142.txt
@@ -0,0 +1,22 @@
+<Elder Abuse Prevention, administers, Rehabilitation Support>
+<Emergency Response System Monitoring, documents, Meal Preparation>
+<Emergency Response System Monitoring, partOf, Emergency Response System Monitoring>
+<Fall Prevention, connectedTo, Physical Therapy>
+<Family Communication, connectedTo, Occupational Therapy>
+<Incontinence Care, coordinates, Legal Aid Referrals>
+<Incontinence Care, partOf, Incontinence Care>
+<Legal Aid Referrals, connectedTo, Palliative Care>
+<Legal Aid Referrals, partOf, Legal Aid Referrals>
+<Meal Preparation, connectedTo, Incontinence Care>
+<Meal Preparation, partOf, Meal Preparation>
+<Palliative Care, connectedTo, Family Communication>
+<Personal Care Assistance, connectedTo, Elder Abuse Prevention>
+<Physical Therapy, accompanies, Incontinence Care>
+<Physical Therapy, connectedTo, Emergency Response System Monitoring>
+<Physical Therapy, connectedTo, Family Communication>
+<Physical Therapy, connectedTo, Rehabilitation Support>
+<Physical Therapy, connectedTo, Respite Care>
+<Rehabilitation Support, connectedTo, Elder Abuse Prevention>
+<Rehabilitation Support, optimizes, Palliative Care>
+<Respite Care, connectedTo, Fall Prevention>
+<Respite Care, dresses, Personal Care Assistance>
diff --git a/test/graphviz/scanned_hard/graphviz_144.dot b/test/graphviz/scanned_hard/graphviz_144.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cbea4eb4362305ce86e3141da0217ef7431b8011
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_144.dot
@@ -0,0 +1,55 @@
+digraph {
+	rankdir=BT
+	N0 [label="Physical Therapy" color="#82DAFF" fillcolor="#C8EDFF" shape=ellipse style=filled]
+	N1 [label="Safety Assessments" color="#82DAFF" fillcolor="#C8EDFF" shape=folder style=filled]
+	N2 [label="Memory Care" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N3 [label="Social Engagement Activities" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N4 [label="Daily Living Assistance" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N5 [label="Transportation Assistance" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N6 [label="Nursing Care" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N7 [label="Personal Care Assistance" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N8 [label="Smart Home Integration for Seniors" color="#82DAFF" fillcolor="#C8EDFF" shape=oval style=filled]
+	N9 [label="Legal Aid Referrals" color="#82DAFF" fillcolor="#C8EDFF" shape=hexagon style=filled]
+	N10 [label="Caregiver Training" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N11 [label="Care Plan Development" color="#FFD54F" fillcolor="#FFF8E1" shape=parallelogram style=filled]
+	N12 [label="Rehabilitation Support" color="#82DAFF" fillcolor="#C8EDFF" shape=box style=filled]
+	N13 [label="Meal Preparation" color="#FFD54F" fillcolor="#FFF8E1" shape=hexagon style=filled]
+	N14 [label="Dementia Care" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	S0 [label="" color="#A188D0" fillcolor="#DACBE3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#A188D0" fillcolor="#DACBE3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#A188D0" fillcolor="#DACBE3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Speech Therapy" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Long_Term Care Planning" color="#FFD54F" fillcolor="#FFF8E1" shape=oval style=filled]
+		nest0_1 [label="Chronic Disease Management" color="#82DAFF" fillcolor="#C8EDFF" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#82DAFF" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#82DAFF" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label="cares for" color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=responds color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#82DAFF" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=plans color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [label=transports color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [label=dresses color="#82DAFF" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest0_0 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N8 [color="#82DAFF" dir=forward penwidth=1.5 style=solid]
+	N0 -> S0 [color="#82DAFF" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N2 [label=facilitates color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N12 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N9 -> S1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N13 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N12 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	S1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M0 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [label=supports color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N9 [color="#82DAFF" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_144.txt b/test/graphviz/scanned_hard/graphviz_144.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b2b4a19d45ef6987846ff05880a2e48db22a24d1
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_144.txt
@@ -0,0 +1,27 @@
+<Care Plan Development, connectedTo, Rehabilitation Support>
+<Caregiver Training, transports, Care Plan Development>
+<Chronic Disease Management, connectedTo, Smart Home Integration for Seniors>
+<Chronic Disease Management, partOf, Chronic Disease Management>
+<Daily Living Assistance, cares for, Transportation Assistance>
+<Daily Living Assistance, supports, Legal Aid Referrals>
+<Legal Aid Referrals, connectedTo, Care Plan Development>
+<Legal Aid Referrals, connectedTo, Caregiver Training>
+<Legal Aid Referrals, connectedTo, Meal Preparation>
+<Legal Aid Referrals, connectedTo, Rehabilitation Support>
+<Long_Term Care Planning, connectedTo, Chronic Disease Management>
+<Long_Term Care Planning, partOf, Long_Term Care Planning>
+<Meal Preparation, dresses, Dementia Care>
+<Memory Care, connectedTo, Social Engagement Activities>
+<Nursing Care, connectedTo, Personal Care Assistance>
+<Personal Care Assistance, connectedTo, Legal Aid Referrals>
+<Personal Care Assistance, connectedTo, Smart Home Integration for Seniors>
+<Physical Therapy, connectedTo, Personal Care Assistance>
+<Physical Therapy, connectedTo, Rehabilitation Support>
+<Physical Therapy, connectedTo, Safety Assessments>
+<Physical Therapy, facilitates, Memory Care>
+<Rehabilitation Support, connectedTo, Meal Preparation>
+<Safety Assessments, connectedTo, Memory Care>
+<Smart Home Integration for Seniors, plans, Legal Aid Referrals>
+<Social Engagement Activities, connectedTo, Daily Living Assistance>
+<Transportation Assistance, connectedTo, Long_Term Care Planning>
+<Transportation Assistance, responds, Nursing Care>
diff --git a/test/graphviz/scanned_hard/graphviz_145.dot b/test/graphviz/scanned_hard/graphviz_145.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cc1b076c198c3f69183b36b4d0e0cc8cf6315717
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_145.dot
@@ -0,0 +1,39 @@
+digraph {
+	rankdir=BT
+	N0 [label="Community Preparedness" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N1 [label="Vulnerability Analysis" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N2 [label="Infrastructure Repair" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N3 [label="Economic Recovery Initiatives" color="#AED581" fillcolor="#F0F4C3" shape=Mdiamond style=filled]
+	N4 [label="Post_Disaster Evaluation" color="#FFB74D" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N5 [label="Resource Mobilization" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N6 [label="Climate Change Adaptation for Disasters" color="#FFB74D" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N7 [label="Resilience Building" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N8 [label="Communication Protocols" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	S0 [label="" color="#FFB74D" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFB74D" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Cash Transfer Programs" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Public Awareness Campaigns" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+		nest0_1 [label="Emergency Response" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+		nest0_2 [label=Reconstruction color="#FFB74D" fillcolor="#FFF3E0" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [label=monitors color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [label=distributes color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [label=recovers color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> nest0_0 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N4 [label=provides color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N5 -> S0 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N7 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	M0 -> N3 [color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_145.txt b/test/graphviz/scanned_hard/graphviz_145.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2e623b070c9535fb430307a5e292579b7dd82eab
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_145.txt
@@ -0,0 +1,19 @@
+<Climate Change Adaptation for Disasters, connectedTo, Resilience Building>
+<Community Preparedness, connectedTo, Economic Recovery Initiatives>
+<Community Preparedness, recovers, Vulnerability Analysis>
+<Economic Recovery Initiatives, connectedTo, Post_Disaster Evaluation>
+<Emergency Response, distributes, Reconstruction>
+<Emergency Response, partOf, Emergency Response>
+<Infrastructure Repair, connectedTo, Economic Recovery Initiatives>
+<Post_Disaster Evaluation, connectedTo, Resource Mobilization>
+<Public Awareness Campaigns, monitors, Emergency Response>
+<Public Awareness Campaigns, partOf, Public Awareness Campaigns>
+<Reconstruction, partOf, Reconstruction>
+<Reconstruction, provides, Post_Disaster Evaluation>
+<Resilience Building, connectedTo, Communication Protocols>
+<Resource Mobilization, connectedTo, Climate Change Adaptation for Disasters>
+<Resource Mobilization, connectedTo, Communication Protocols>
+<Resource Mobilization, connectedTo, Resilience Building>
+<Vulnerability Analysis, connectedTo, Economic Recovery Initiatives>
+<Vulnerability Analysis, connectedTo, Infrastructure Repair>
+<Vulnerability Analysis, connectedTo, Public Awareness Campaigns>
diff --git a/test/graphviz/scanned_hard/graphviz_147.dot b/test/graphviz/scanned_hard/graphviz_147.dot
new file mode 100644
index 0000000000000000000000000000000000000000..305221be2fa0980579d6218d3e0564e027dffe82
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_147.dot
@@ -0,0 +1,35 @@
+digraph {
+	rankdir=RL
+	N0 [label="Vulnerability Analysis" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	N1 [label="Resource Mobilization" color="#BA68C8" fillcolor="#F3E5F5" shape=box style=filled]
+	N2 [label="Search and Rescue Operations" color="#BA68C8" fillcolor="#F3E5F5" shape=folder style=filled]
+	N3 [label="Emergency Response" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+	N4 [label="Public Awareness Campaigns" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N5 [label="Emergency Drills and Exercises" color="#4DD0E1" fillcolor="#C9F0F0" shape=box style=filled]
+	N6 [label="Mitigation Strategies" color="#BA68C8" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	S0 [label="" color="#DCE775" fillcolor="#FCFCE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#4DD0E1" fillcolor="#C9F0F0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="International Aid Coordination" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Information Dissemination" color="#BA68C8" fillcolor="#F3E5F5" shape=diamond style=filled]
+		nest0_1 [label="Satellite Imagery Analysis" color="#4DD0E1" fillcolor="#C9F0F0" shape=box style=filled]
+		nest0_2 [label=Reconstruction color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#BA68C8" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#BA68C8" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#BA68C8" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#BA68C8" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=recovers color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N1 [label=audits color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#BA68C8" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [label=donates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S1 [color="#BA68C8" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#BA68C8" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N5 [color="#BA68C8" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_148.dot b/test/graphviz/scanned_hard/graphviz_148.dot
new file mode 100644
index 0000000000000000000000000000000000000000..94c7f562ff50513d249426e2964dd7c2489bf820
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_148.dot
@@ -0,0 +1,47 @@
+digraph {
+	rankdir=TD
+	N0 [label="Peacekeeping Missions" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N1 [label="Counter_Insurgency Operations" color="#4DD0E1" fillcolor="#C9F0F0" shape=ellipse style=filled]
+	N2 [label="Weapon Systems Development" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+	N3 [label="Electronic Warfare" color="#E91E63" fillcolor="#FCE4EC" shape=folder style=filled]
+	N4 [label="Equipment Maintenance" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+	N5 [label=Surveillance color="#E91E63" fillcolor="#FCE4EC" shape=folder style=filled]
+	N6 [label="Ground Operations" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+	N7 [label="Specialized Training" color="#E91E63" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N8 [label="Civil_Military Cooperation" color="#4DD0E1" fillcolor="#C9F0F0" shape=ellipse style=filled]
+	N9 [label=Demobilization color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+	N10 [label="Disaster Relief Deployment" color="#4DD0E1" fillcolor="#C9F0F0" shape=box style=filled]
+	N11 [label="Air Operations" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#BCB88A" fillcolor="#F5F5DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Space Operations" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Operations Planning" color="#4DD0E1" fillcolor="#C9F0F0" shape=folder style=filled]
+		nest0_1 [label="Personnel Management" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+		nest0_2 [label="Force Projection" color="#BCB88A" fillcolor="#F5F5DC" shape=parallelogram style=filled]
+		nest0_3 [label="Basic Training" color="#E91E63" fillcolor="#FCE4EC" shape=oval style=filled]
+		nest0_0 -> nest0_1 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#4DD0E1" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=coordinates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=communicates color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [label=tests color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#4DD0E1" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest0_0 [color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N3 [label=supplies color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N0 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N2 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N11 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N8 -> M0 [label=attacks color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> M0 [color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	M0 -> N11 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_148.txt b/test/graphviz/scanned_hard/graphviz_148.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a3d3bb1d145ede362bccd5c4b84b2e32cebb8ba3
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_148.txt
@@ -0,0 +1,24 @@
+<Basic Training, partOf, Basic Training>
+<Basic Training, supplies, Electronic Warfare>
+<Civil_Military Cooperation, attacks, Air Operations>
+<Civil_Military Cooperation, connectedTo, Demobilization>
+<Counter_Insurgency Operations, connectedTo, Weapon Systems Development>
+<Demobilization, connectedTo, Air Operations>
+<Demobilization, tests, Disaster Relief Deployment>
+<Disaster Relief Deployment, connectedTo, Air Operations>
+<Electronic Warfare, coordinates, Equipment Maintenance>
+<Equipment Maintenance, communicates, Surveillance>
+<Force Projection, connectedTo, Basic Training>
+<Force Projection, partOf, Force Projection>
+<Ground Operations, connectedTo, Operations Planning>
+<Ground Operations, connectedTo, Specialized Training>
+<Operations Planning, connectedTo, Personnel Management>
+<Operations Planning, partOf, Operations Planning>
+<Peacekeeping Missions, connectedTo, Air Operations>
+<Peacekeeping Missions, connectedTo, Counter_Insurgency Operations>
+<Peacekeeping Missions, connectedTo, Weapon Systems Development>
+<Personnel Management, connectedTo, Force Projection>
+<Personnel Management, partOf, Personnel Management>
+<Specialized Training, connectedTo, Civil_Military Cooperation>
+<Surveillance, connectedTo, Ground Operations>
+<Weapon Systems Development, connectedTo, Electronic Warfare>
diff --git a/test/graphviz/scanned_hard/graphviz_149.dot b/test/graphviz/scanned_hard/graphviz_149.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c94a8db20da243857b0e2e11498826f533a38e3a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_149.dot
@@ -0,0 +1,53 @@
+digraph {
+	rankdir=LR
+	N0 [label="Counter_Terrorism Operations" color="#26A69A" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N1 [label="Medical Support" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N2 [label="Air Operations" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N3 [label="Readiness Assessment" color="#26A69A" fillcolor="#E0F2F1" shape=folder style=filled]
+	N4 [label=Demobilization color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N5 [label="Veteran Support" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N6 [label="Electronic Warfare" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N7 [label="Family Support Programs" color="#7E57C2" fillcolor="#D1C4E9" shape=oval style=filled]
+	N8 [label="Military Law" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N9 [label="Defense Procurement" color="#FBC02D" fillcolor="#FFFDE7" shape=folder style=filled]
+	N10 [label="Naval Operations" color="#26A69A" fillcolor="#E0F2F1" shape=Mdiamond style=filled]
+	N11 [label="Rules of Engagement" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	S0 [label="" color="#FBC02D" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FBC02D" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#26A69A" fillcolor="#E0F2F1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FBC02D" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label=Surveillance labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label=Recruitment color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+		nest0_1 [label="Space Operations" color="#FBC02D" fillcolor="#FFFDE7" shape=octagon style=filled]
+		nest0_2 [label="Combat Operations" color="#26A69A" fillcolor="#E0F2F1" shape=folder style=filled]
+		nest0_0 -> nest0_1 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [label=innovates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=commands color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=intelligence color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=reports color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N4 -> nest0_0 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N4 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N4 -> S0 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N9 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N0 -> S1 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [label=maintains color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N8 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N7 -> M0 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> M1 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N9 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_149.txt b/test/graphviz/scanned_hard/graphviz_149.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4799b95647bca8b1aaad6ad773c9f2309806fa5d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_149.txt
@@ -0,0 +1,26 @@
+<Air Operations, connectedTo, Readiness Assessment>
+<Combat Operations, connectedTo, Demobilization>
+<Combat Operations, partOf, Combat Operations>
+<Counter_Terrorism Operations, connectedTo, Medical Support>
+<Counter_Terrorism Operations, connectedTo, Military Law>
+<Counter_Terrorism Operations, maintains, Electronic Warfare>
+<Defense Procurement, connectedTo, Naval Operations>
+<Demobilization, connectedTo, Defense Procurement>
+<Demobilization, connectedTo, Naval Operations>
+<Demobilization, connectedTo, Recruitment>
+<Demobilization, connectedTo, Veteran Support>
+<Electronic Warfare, connectedTo, Family Support Programs>
+<Family Support Programs, connectedTo, Naval Operations>
+<Family Support Programs, reports, Military Law>
+<Medical Support, connectedTo, Air Operations>
+<Medical Support, connectedTo, Defense Procurement>
+<Medical Support, connectedTo, Naval Operations>
+<Military Law, connectedTo, Defense Procurement>
+<Naval Operations, connectedTo, Rules of Engagement>
+<Readiness Assessment, commands, Demobilization>
+<Recruitment, connectedTo, Space Operations>
+<Recruitment, partOf, Recruitment>
+<Space Operations, innovates, Combat Operations>
+<Space Operations, partOf, Space Operations>
+<Veteran Support, connectedTo, Defense Procurement>
+<Veteran Support, intelligence, Electronic Warfare>
diff --git a/test/graphviz/scanned_hard/graphviz_15.dot b/test/graphviz/scanned_hard/graphviz_15.dot
new file mode 100644
index 0000000000000000000000000000000000000000..60e949d136b1bdb396d0f8a0c9ec965710d9bd27
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_15.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=RL
+	N0 [label="Sponsorship Acquisition" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N1 [label="Licensing Approval" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	N2 [label="Intellectual Property Protection" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	N3 [label="Audience Feedback" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N4 [label="Special Effects Design" color="#607D8B" fillcolor="#CFD8DC" shape=folder style=filled]
+	N5 [label="Ticketing Sales" color="#A2D0FF" fillcolor="#E8F0FF" shape=folder style=filled]
+	N6 [label="Editing Process" color="#607D8B" fillcolor="#CFD8DC" shape=ellipse style=filled]
+	N7 [label="Streaming Setup" color="#8C9EFF" fillcolor="#D3D7EB" shape=plaintext style=filled]
+	N8 [label="Lighting Setup" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	N0 -> N1 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=performs color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=distributes color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=monetizes color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N8 [label=markets color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_15.txt b/test/graphviz/scanned_hard/graphviz_15.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d9dcba434e1d3e615019b320fb387c0dd940dac9
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_15.txt
@@ -0,0 +1,9 @@
+<Audience Feedback, connectedTo, Special Effects Design>
+<Editing Process, monetizes, Streaming Setup>
+<Intellectual Property Protection, performs, Audience Feedback>
+<Licensing Approval, connectedTo, Intellectual Property Protection>
+<Special Effects Design, connectedTo, Ticketing Sales>
+<Special Effects Design, markets, Lighting Setup>
+<Sponsorship Acquisition, connectedTo, Licensing Approval>
+<Streaming Setup, connectedTo, Lighting Setup>
+<Ticketing Sales, distributes, Editing Process>
diff --git a/test/graphviz/scanned_hard/graphviz_151.dot b/test/graphviz/scanned_hard/graphviz_151.dot
new file mode 100644
index 0000000000000000000000000000000000000000..38e94b479fcbfabe090c2fa22130a14b0f24170b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_151.dot
@@ -0,0 +1,51 @@
+digraph {
+	rankdir=RL
+	N0 [label="Pilot Training" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N1 [label="Aerospace Engineering" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N2 [label="Gate Assignment" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N3 [label="Security Screening" color="#AB47BC" fillcolor="#F3E5F5" shape=octagon style=filled]
+	N4 [label="Emergency Procedures Training" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+	N5 [label="Passenger Check_in" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	N6 [label="Fueling Operations" color="#AF56A6" fillcolor="#DDCEDD" shape=octagon style=filled]
+	N7 [label="Route Optimization" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N8 [label="Airport Operations" color="#AB47BC" fillcolor="#F3E5F5" shape=plaintext style=filled]
+	N9 [label="Runway Management" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+	N10 [label="Flight Planning" color="#AF56A6" fillcolor="#DDCEDD" shape=parallelogram style=filled]
+	N11 [label="Delay Management" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	S0 [label="" color="#AB47BC" fillcolor="#F3E5F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFF176" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#AB47BC" fillcolor="#F3E5F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Regulatory Compliance" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Sustainable Aviation Fuel Development" color="#AF56A6" fillcolor="#DDCEDD" shape=Mdiamond style=filled]
+		nest0_1 [label="Airspace Management" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+		nest0_2 [label="In_flight Service" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+		nest0_3 [label="Weather Briefing" color="#FFF176" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [label=tests color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=regulates color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=checks color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [label=certifies color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest0_0 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N6 [color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N5 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N7 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N11 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N5 -> M0 [color="#AF56A6" dir=forward penwidth=1.5 style=solid]
+	M0 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M1 [label=documents color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [label=repairs color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N11 [color="#AF56A6" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_152.dot b/test/graphviz/scanned_hard/graphviz_152.dot
new file mode 100644
index 0000000000000000000000000000000000000000..09cb177af6a988824258078b00f87b17e4d9a33b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_152.dot
@@ -0,0 +1,51 @@
+digraph {
+	rankdir=BT
+	N0 [label="Airport Operations" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N1 [label="Aircraft De_icing" color="#FF8A65" fillcolor="#FBE9E7" shape=octagon style=filled]
+	N2 [label="Fueling Operations" color="#FF8A65" fillcolor="#FBE9E7" shape=octagon style=filled]
+	N3 [label="Ground Support" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N4 [label="Next_Generation Air Traffic Management" color="#E91E63" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+	N5 [label="Sustainable Aviation Fuel Development" color="#E91E63" fillcolor="#FCE4EC" shape=folder style=filled]
+	N6 [label="Passenger Check_in" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N7 [label="Runway Management" color="#FF8A65" fillcolor="#FBE9E7" shape=oval style=filled]
+	N8 [label="In_flight Service" color="#EAEFA5" fillcolor="#FDFCEB" shape=octagon style=filled]
+	N9 [label="Crew Resource Management" color="#FF8A65" fillcolor="#FBE9E7" shape=diamond style=filled]
+	N10 [label="Security Screening" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N11 [label="Emergency Procedures Training" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	S1 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FF8A65" fillcolor="#FBE9E7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FF8A65" fillcolor="#FBE9E7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Passenger Boarding" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Air Traffic Control" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+		nest0_1 [label="Navigation System Check" color="#EAEFA5" fillcolor="#FDFCEB" shape=Mdiamond style=filled]
+		nest0_2 [label="Gate Assignment" color="#E91E63" fillcolor="#FCE4EC" shape=Mdiamond style=filled]
+		nest0_3 [label="Engine Overhaul" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [label=designs color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [label=boards color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=inspects color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=investigates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=regulates color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [label=loads color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N1 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N5 -> S1 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N7 [label=audits color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [label=lands color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N4 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_153.txt b/test/graphviz/scanned_hard/graphviz_153.txt
new file mode 100644
index 0000000000000000000000000000000000000000..484c4ba07b216011f4aa6d2dedf52143cde76b7a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_153.txt
@@ -0,0 +1,18 @@
+<Aircraft De_icing, connectedTo, Sustainable Aviation Fuel Development>
+<Aircraft De_icing, partOf, Aircraft De_icing>
+<Aircraft Manufacturing, connectedTo, Flight Simulation>
+<Aviation Safety Investigation, connectedTo, Aircraft Manufacturing>
+<Aviation Safety Investigation, connectedTo, Flight Simulation>
+<Aviation Safety Investigation, reports, Remote Tower Operations>
+<Emergency Procedures Training, connectedTo, Aviation Safety Investigation>
+<Emergency Procedures Training, connectedTo, Flight Simulation>
+<Emergency Procedures Training, connectedTo, Remote Tower Operations>
+<Fleet Management, connectedTo, Remote Tower Operations>
+<Fleet Management, partOf, Fleet Management>
+<Next_Generation Air Traffic Management, connectedTo, Emergency Procedures Training>
+<Next_Generation Air Traffic Management, maintains, Remote Tower Operations>
+<Remote Tower Operations, boards, Aircraft De_icing>
+<Remote Tower Operations, unloads, Aircraft Manufacturing>
+<Route Optimization, flies, Next_Generation Air Traffic Management>
+<Sustainable Aviation Fuel Development, connectedTo, Fleet Management>
+<Sustainable Aviation Fuel Development, partOf, Sustainable Aviation Fuel Development>
diff --git a/test/graphviz/scanned_hard/graphviz_154.txt b/test/graphviz/scanned_hard/graphviz_154.txt
new file mode 100644
index 0000000000000000000000000000000000000000..62211997f4933c45199463fc5128d9b62e3c8811
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_154.txt
@@ -0,0 +1,20 @@
+<GPS Positioning, connectedTo, Geocoding>
+<GPS Positioning, connectedTo, Lane Guidance>
+<GPS Positioning, connectedTo, Turn_by_Turn Directions>
+<GPS Positioning, connectedTo, Voice Guidance Customization>
+<GPS Positioning, searches, Lane Guidance>
+<Geocoding, connectedTo, Lane Guidance>
+<Geocoding, identifies, Voice Guidance Customization>
+<Historical Traffic Data Analysis, connectedTo, Multi_modal Navigation>
+<Historical Traffic Data Analysis, partOf, Historical Traffic Data Analysis>
+<Location_Based Services, alerts, Turn_by_Turn Directions>
+<Location_Based Services, partOf, Location_Based Services>
+<Multi_modal Navigation, partOf, Multi_modal Navigation>
+<Multi_modal Navigation, syncs, Location_Based Services>
+<Real_Time Re_routing, partOf, Real_Time Re_routing>
+<Real_Time Re_routing, predicts, Historical Traffic Data Analysis>
+<Terrestrial Navigation, connectedTo, Real_Time Re_routing>
+<Terrestrial Navigation, plots, Turn_by_Turn Directions>
+<Turn_by_Turn Directions, connectedTo, Lane Guidance>
+<Voice Guidance Customization, connectedTo, Terrestrial Navigation>
+<Voice Guidance Customization, transmits, Turn_by_Turn Directions>
diff --git a/test/graphviz/scanned_hard/graphviz_155.txt b/test/graphviz/scanned_hard/graphviz_155.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7daa569b7fb897c4db80869ead4ce10151bb6f39
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_155.txt
@@ -0,0 +1,21 @@
+<Aeronautical Charting, connectedTo, Augmented Reality Navigation>
+<Altitude Tracking, connectedTo, Map Display>
+<Augmented Reality Navigation, connectedTo, Offline Map Support>
+<Digital Compass Integration, partOf, Digital Compass Integration>
+<Digital Compass Integration, predicts, Reverse Geocoding>
+<Hazard Alerts, connectedTo, Public Transit Navigation>
+<Map Display, connectedTo, Hazard Alerts>
+<Map Display, connectedTo, Offline Map Support>
+<Map Display, connectedTo, Personalized Route Preferences>
+<Map Display, connectedTo, Reverse Geocoding>
+<Map Display, tracks, Speed Calculation>
+<Personalized Route Preferences, connectedTo, Points of Interest Search>
+<Personalized Route Preferences, updates, Hazard Alerts>
+<Points of Interest Search, connectedTo, Reverse Geocoding>
+<Public Transit Navigation, syncs, Aeronautical Charting>
+<Real_Time Re_routing, monitors, Digital Compass Integration>
+<Real_Time Re_routing, partOf, Real_Time Re_routing>
+<Reverse Geocoding, connectedTo, Hazard Alerts>
+<Speed Calculation, connectedTo, Real_Time Re_routing>
+<Speed Calculation, partOf, Speed Calculation>
+<Turn_by_Turn Directions, connectedTo, Altitude Tracking>
diff --git a/test/graphviz/scanned_hard/graphviz_156.dot b/test/graphviz/scanned_hard/graphviz_156.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a4d1292a4863c49678d44d4d83164cb9ff4a3748
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_156.dot
@@ -0,0 +1,47 @@
+digraph {
+	rankdir=RL
+	N0 [label=Geofencing color="#81C784" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N1 [label="Real_Time Re_routing" color="#61CAC3" fillcolor="#C2E8E6" shape=oval style=filled]
+	N2 [label="Reverse Geocoding" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N3 [label="Pedestrian Navigation" color="#81C784" fillcolor="#F1F8E9" shape=oval style=filled]
+	N4 [label="Map Display" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+	N5 [label="Bearing and Distance Calculation" color="#61CAC3" fillcolor="#C2E8E6" shape=plaintext style=filled]
+	N6 [label="Personalized Route Preferences" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N7 [label="Terrestrial Navigation" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N8 [label="Offline Map Support" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N9 [label="Aeronautical Charting" color="#81C784" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N10 [label="Multi_modal Navigation" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	S0 [label="" color="#61CAC3" fillcolor="#C2E8E6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFCC80" fillcolor="#FFF0CC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#81C784" fillcolor="#F1F8E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Points of Interest Search" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Lane Guidance" color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+		nest0_1 [label="Satellite Navigation Systems" color="#81C784" fillcolor="#F1F8E9" shape=Mdiamond style=filled]
+		nest0_2 [label="Inertial Navigation System" color="#81C784" fillcolor="#F1F8E9" shape=oval style=filled]
+		nest0_0 -> nest0_1 [label=plots color="#81C784" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [label=orients color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=detects color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=avoids color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=validates color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest0_0 [label=plans color="#81C784" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N2 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N2 -> S0 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	M0 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> M1 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M1 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_158.dot b/test/graphviz/scanned_hard/graphviz_158.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0c9f7e3557b84fe48ef30bc7b92cf25faaad6168
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_158.dot
@@ -0,0 +1,49 @@
+digraph {
+	rankdir=TD
+	N0 [label="Selective Laser Sintering" color="#26A69A" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N1 [label="Reverse Engineering with 3D Printing" color="#AF56A6" fillcolor="#DDCEDD" shape=ellipse style=filled]
+	N2 [label=Bioprinting color="#AF56A6" fillcolor="#DDCEDD" shape=plaintext style=filled]
+	N3 [label="Mass Customization" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+	N4 [label="3D Printed Tooling" color="#AF56A6" fillcolor="#DDCEDD" shape=diamond style=filled]
+	N5 [label="Printing Process" color="#26A69A" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N6 [label="Digital Twin for 3D Prints" color="#AF56A6" fillcolor="#DDCEDD" shape=ellipse style=filled]
+	N7 [label="Direct Metal Laser Sintering" color="#AF56A6" fillcolor="#DDCEDD" shape=ellipse style=filled]
+	N8 [label="Additive Manufacturing" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N9 [label=Post_Processing color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+	N10 [label="Scaffolding for Tissue Engineering" color="#AF56A6" fillcolor="#DDCEDD" shape=Mdiamond style=filled]
+	N11 [label="Construction 3D Printing" color="#AF56A6" fillcolor="#DDCEDD" shape=ellipse style=filled]
+	S0 [label="" color="#26A69A" fillcolor="#E0F2F1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFC2C2" fillcolor="#FFEBEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFC2C2" fillcolor="#FFEBEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Consumer Product Creation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Quality Control" color="#26A69A" fillcolor="#E0F2F1" shape=plaintext style=filled]
+		nest0_1 [label="Medical Device Prototyping" color="#AF56A6" fillcolor="#DDCEDD" shape=ellipse style=filled]
+		nest0_2 [label="Maintenance and Repair of Printers" color="#AF56A6" fillcolor="#DDCEDD" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [label=troubleshoots color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#AF56A6" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=replicates color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [label=produces color="#AF56A6" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N1 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N0 -> S0 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [label=automates color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N2 [label=researches color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [label=finishes color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N4 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N5 -> M1 [label=enhances color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_158.txt b/test/graphviz/scanned_hard/graphviz_158.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c1be77df6046492dbe69b7264bcdf62f39b71fca
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_158.txt
@@ -0,0 +1,24 @@
+<3D Printed Tooling, connectedTo, Printing Process>
+<Additive Manufacturing, replicates, Post_Processing>
+<Bioprinting, connectedTo, 3D Printed Tooling>
+<Bioprinting, connectedTo, Mass Customization>
+<Digital Twin for 3D Prints, connectedTo, Direct Metal Laser Sintering>
+<Direct Metal Laser Sintering, connectedTo, Additive Manufacturing>
+<Maintenance and Repair of Printers, connectedTo, Reverse Engineering with 3D Printing>
+<Maintenance and Repair of Printers, partOf, Maintenance and Repair of Printers>
+<Mass Customization, connectedTo, 3D Printed Tooling>
+<Medical Device Prototyping, connectedTo, Maintenance and Repair of Printers>
+<Medical Device Prototyping, partOf, Medical Device Prototyping>
+<Post_Processing, produces, Scaffolding for Tissue Engineering>
+<Printing Process, connectedTo, Digital Twin for 3D Prints>
+<Printing Process, connectedTo, Quality Control>
+<Printing Process, enhances, Additive Manufacturing>
+<Quality Control, partOf, Quality Control>
+<Quality Control, troubleshoots, Medical Device Prototyping>
+<Reverse Engineering with 3D Printing, connectedTo, Bioprinting>
+<Reverse Engineering with 3D Printing, finishes, 3D Printed Tooling>
+<Scaffolding for Tissue Engineering, connectedTo, Construction 3D Printing>
+<Selective Laser Sintering, automates, Digital Twin for 3D Prints>
+<Selective Laser Sintering, connectedTo, Additive Manufacturing>
+<Selective Laser Sintering, connectedTo, Reverse Engineering with 3D Printing>
+<Selective Laser Sintering, researches, Bioprinting>
diff --git a/test/graphviz/scanned_hard/graphviz_159.txt b/test/graphviz/scanned_hard/graphviz_159.txt
new file mode 100644
index 0000000000000000000000000000000000000000..87bb24952b206672a55c314e89e25bc843246c03
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_159.txt
@@ -0,0 +1,20 @@
+<3D Model Design, connectedTo, Troubleshooting Print Errors>
+<3D Model Design, partOf, 3D Model Design>
+<Bioprinting, connectedTo, 3D Model Design>
+<Bioprinting, connectedTo, Support Structure Design>
+<Custom Part Production, connectedTo, Bioprinting>
+<Digital Twin for 3D Prints, connectedTo, Slicing Software Operation>
+<Digital Twin for 3D Prints, partOf, Digital Twin for 3D Prints>
+<Educational Applications, scans, Custom Part Production>
+<Mass Customization, analyzes, Post_Processing>
+<Mass Customization, connectedTo, Custom Part Production>
+<Mass Customization, connectedTo, Educational Applications>
+<Mass Customization, engineers, Bioprinting>
+<Mass Customization, integrates, Custom Part Production>
+<Post_Processing, connectedTo, Custom Part Production>
+<Post_Processing, connectedTo, Educational Applications>
+<Post_Processing, replicates, Custom Part Production>
+<Slicing Software Operation, connectedTo, Educational Applications>
+<Slicing Software Operation, partOf, Slicing Software Operation>
+<Troubleshooting Print Errors, connectedTo, Digital Twin for 3D Prints>
+<Troubleshooting Print Errors, partOf, Troubleshooting Print Errors>
diff --git a/test/graphviz/scanned_hard/graphviz_16.dot b/test/graphviz/scanned_hard/graphviz_16.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9bcbe90a334f38c8109dc21c53fb2b626fd44134
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_16.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Public Awareness Campaign" color="#E0E0E0" fillcolor="#EBEBEB" shape=ellipse style=filled]
+	N1 [label="Wildlife Survey" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+	N2 [label="Biodiversity Conservation" color="#607D8B" fillcolor="#CFD8DC" shape=parallelogram style=filled]
+	N3 [label="Species Reintroduction" color="#E0E0E0" fillcolor="#EBEBEB" shape=folder style=filled]
+	N4 [label="Pollution Alert" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+	N5 [label="Waste Collection" color="#607D8B" fillcolor="#CFD8DC" shape=Mdiamond style=filled]
+	N6 [label="Resource Recovery" color="#E0E0E0" fillcolor="#EBEBEB" shape=Mdiamond style=filled]
+	N7 [label="Hazardous Material Handling" color="#607D8B" fillcolor="#CFD8DC" shape=ellipse style=filled]
+	N0 -> N1 [label=models color="#92C79A" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=recycles color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=cleans color="#E0E0E0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#E0E0E0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N0 [label=treats color="#92C79A" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_16.txt b/test/graphviz/scanned_hard/graphviz_16.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c996da815efcf60597927edbabebba40a5abbe20
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_16.txt
@@ -0,0 +1,8 @@
+<Biodiversity Conservation, cleans, Species Reintroduction>
+<Pollution Alert, connectedTo, Waste Collection>
+<Public Awareness Campaign, models, Wildlife Survey>
+<Resource Recovery, connectedTo, Hazardous Material Handling>
+<Species Reintroduction, connectedTo, Pollution Alert>
+<Waste Collection, connectedTo, Resource Recovery>
+<Wildlife Survey, recycles, Biodiversity Conservation>
+<Wildlife Survey, treats, Public Awareness Campaign>
diff --git a/test/graphviz/scanned_hard/graphviz_160.txt b/test/graphviz/scanned_hard/graphviz_160.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5abf77e61a9ee8abafaee12db5548cd4fc6eb061
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_160.txt
@@ -0,0 +1,18 @@
+<Advanced Materials Research, engineers, Ethical Implications of Nanotech>
+<Advanced Materials Research, secures, Nanodevice Fabrication>
+<Carbon Nanotube Synthesis, connectedTo, Advanced Materials Research>
+<Carbon Nanotube Synthesis, connectedTo, Food Packaging Improvement>
+<Computational Nanotechnology, measures, Quantum Computing Integration>
+<Energy Storage Applications, connectedTo, Computational Nanotechnology>
+<Energy Storage Applications, connectedTo, Food Packaging Improvement>
+<Ethical Implications of Nanotech, modifies, Water Purification using Nanomaterials>
+<Nanodevice Fabrication, connectedTo, Nanoparticle Characterization>
+<Nanodevice Fabrication, partOf, Nanodevice Fabrication>
+<Nanoparticle Characterization, develops, Ethical Implications of Nanotech>
+<Nanoparticle Characterization, partOf, Nanoparticle Characterization>
+<Quantum Computing Integration, connectedTo, X_ray Diffraction>
+<Water Purification using Nanomaterials, connectedTo, Computational Nanotechnology>
+<Water Purification using Nanomaterials, connectedTo, Energy Storage Applications>
+<Water Purification using Nanomaterials, connectedTo, Food Packaging Improvement>
+<Water Purification using Nanomaterials, optimizes, X_ray Diffraction>
+<X_ray Diffraction, connectedTo, Food Packaging Improvement>
diff --git a/test/graphviz/scanned_hard/graphviz_161.dot b/test/graphviz/scanned_hard/graphviz_161.dot
new file mode 100644
index 0000000000000000000000000000000000000000..02880a312c7b7fedc0139f1867e3a0e6d2293593
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_161.dot
@@ -0,0 +1,34 @@
+digraph {
+	rankdir=TD
+	N0 [label="Nanomedicine Development" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+	N1 [label="Water Purification using Nanomaterials" color="#CDDC39" fillcolor="#E6EE9C" shape=folder style=filled]
+	N2 [label=Biosensors color="#9FA9E1" fillcolor="#D6D9F0" shape=parallelogram style=filled]
+	N3 [label="Scanning Electron Microscopy" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N4 [label="Bio_Nanotechnology Interface" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+	N5 [label="Regulatory Framework for Nanotech" color="#CDDC39" fillcolor="#E6EE9C" shape=folder style=filled]
+	N6 [label="Nanodevice Fabrication" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N7 [label="Energy Storage Applications" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N8 [label="Public Perception of Nanotechnology" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	M0 [label="" color="#B8C0F5" fillcolor="#ECF0FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label=Nanocoatings labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Environmental Remediation with Nanomaterials" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+		nest0_1 [label="Computational Nanotechnology" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label=protects color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=visualizes color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=modifies color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=measures color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N7 -> nest0_0 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N4 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [label=produces color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N8 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_161.txt b/test/graphviz/scanned_hard/graphviz_161.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b532c8b55e799068d3057467dc776c0588695af0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_161.txt
@@ -0,0 +1,16 @@
+<Bio_Nanotechnology Interface, visualizes, Regulatory Framework for Nanotech>
+<Biosensors, connectedTo, Scanning Electron Microscopy>
+<Computational Nanotechnology, connectedTo, Bio_Nanotechnology Interface>
+<Computational Nanotechnology, partOf, Computational Nanotechnology>
+<Energy Storage Applications, connectedTo, Environmental Remediation with Nanomaterials>
+<Energy Storage Applications, connectedTo, Public Perception of Nanotechnology>
+<Environmental Remediation with Nanomaterials, connectedTo, Computational Nanotechnology>
+<Environmental Remediation with Nanomaterials, partOf, Environmental Remediation with Nanomaterials>
+<Nanodevice Fabrication, measures, Energy Storage Applications>
+<Nanomedicine Development, connectedTo, Scanning Electron Microscopy>
+<Nanomedicine Development, protects, Water Purification using Nanomaterials>
+<Regulatory Framework for Nanotech, modifies, Nanodevice Fabrication>
+<Scanning Electron Microscopy, connectedTo, Bio_Nanotechnology Interface>
+<Scanning Electron Microscopy, connectedTo, Public Perception of Nanotechnology>
+<Water Purification using Nanomaterials, connectedTo, Biosensors>
+<Water Purification using Nanomaterials, produces, Scanning Electron Microscopy>
diff --git a/test/graphviz/scanned_hard/graphviz_162.dot b/test/graphviz/scanned_hard/graphviz_162.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6836fcc2d229c93311599cf5ac28c0af2cd54df0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_162.dot
@@ -0,0 +1,51 @@
+digraph {
+	rankdir=BT
+	N0 [label="Drug Delivery Systems" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N1 [label="Computational Nanotechnology" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+	N2 [label="Surface Functionalization" color="#42A5F5" fillcolor="#F1F8FF" shape=octagon style=filled]
+	N3 [label="Nanoscale Imaging" color="#4FC3F7" fillcolor="#E1F5FE" shape=Mdiamond style=filled]
+	N4 [label="Food Packaging Improvement" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	N5 [label="Nanoparticle Characterization" color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+	N6 [label=Nanoelectronics color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N7 [label=Nanocoatings color="#FFA726" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N8 [label=Photovoltaics color="#42A5F5" fillcolor="#F1F8FF" shape=diamond style=filled]
+	N9 [label="Environmental Remediation with Nanomaterials" color="#FFA726" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N10 [label="Molecular Self_Assembly" color="#4FC3F7" fillcolor="#E1F5FE" shape=parallelogram style=filled]
+	N11 [label="Ethical Implications of Nanotech" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	S0 [label="" color="#FFA726" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFA726" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#42A5F5" fillcolor="#F1F8FF" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Bio_Nanotechnology Interface" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label=Nanocomposites color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+		nest0_1 [label=Biosensors color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+		nest0_2 [label="Nanomaterial Synthesis" color="#4FC3F7" fillcolor="#E1F5FE" shape=octagon style=filled]
+		nest0_3 [label="Nanodevice Fabrication" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=detects color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#4FC3F7" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=filters color="#4FC3F7" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#4FC3F7" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=modifies color="#4FC3F7" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N1 -> nest0_0 [label=assembles color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> S0 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N4 [color="#4FC3F7" dir=forward penwidth=1.5 style=solid]
+	N5 -> S1 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N8 [label=monitors color="#4FC3F7" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#4FC3F7" dir=forward penwidth=1.5 style=dashed]
+	N8 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_164.dot b/test/graphviz/scanned_hard/graphviz_164.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4916d213bf8b2f2f80a310e35ac4ef7479dfa62c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_164.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=LR
+	N0 [label="Quantum Processor Fabrication" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N1 [label="Optimization Problems with Quantum Annealing" color="#26A69A" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N2 [label="Decoherence Mitigation" color="#7E57C2" fillcolor="#EDE7F6" shape=parallelogram style=filled]
+	N3 [label="Trapped Ion Qubits" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N4 [label="Photonic Qubits" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N5 [label="Quantum Supremacy Claims" color="#F06292" fillcolor="#FCE4EC" shape=octagon style=filled]
+	N6 [label="Quantum Bit Design" color="#7E57C2" fillcolor="#EDE7F6" shape=Mdiamond style=filled]
+	N7 [label="Vacuum Systems for Trapped Ions" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N8 [label="Quantum Simulation" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N9 [label="Quantum Coherence Management" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	S0 [label="" color="#26A69A" fillcolor="#E0F2F1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#F06292" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Quantum Machine Learning" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Quantum Software Development Kit" color="#7E57C2" fillcolor="#EDE7F6" shape=Mdiamond style=filled]
+		nest0_1 [label="Quantum Advantage Demonstration" color="#F06292" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=verifies color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N7 -> nest0_0 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N6 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S0 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N9 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> S1 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N9 [label=optimizes color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [label=researches color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N4 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_164.txt b/test/graphviz/scanned_hard/graphviz_164.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cfbeca9c735e7479f94ca2e0c0c3c2ddd2c9b8c0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_164.txt
@@ -0,0 +1,20 @@
+<Decoherence Mitigation, connectedTo, Photonic Qubits>
+<Decoherence Mitigation, connectedTo, Trapped Ion Qubits>
+<Decoherence Mitigation, optimizes, Quantum Coherence Management>
+<Decoherence Mitigation, researches, Quantum Bit Design>
+<Optimization Problems with Quantum Annealing, connectedTo, Decoherence Mitigation>
+<Photonic Qubits, connectedTo, Quantum Supremacy Claims>
+<Quantum Advantage Demonstration, connectedTo, Quantum Bit Design>
+<Quantum Advantage Demonstration, partOf, Quantum Advantage Demonstration>
+<Quantum Bit Design, connectedTo, Vacuum Systems for Trapped Ions>
+<Quantum Processor Fabrication, connectedTo, Optimization Problems with Quantum Annealing>
+<Quantum Simulation, connectedTo, Quantum Coherence Management>
+<Quantum Software Development Kit, connectedTo, Quantum Advantage Demonstration>
+<Quantum Software Development Kit, partOf, Quantum Software Development Kit>
+<Quantum Supremacy Claims, verifies, Quantum Bit Design>
+<Trapped Ion Qubits, connectedTo, Photonic Qubits>
+<Trapped Ion Qubits, connectedTo, Quantum Bit Design>
+<Trapped Ion Qubits, connectedTo, Quantum Coherence Management>
+<Trapped Ion Qubits, connectedTo, Vacuum Systems for Trapped Ions>
+<Vacuum Systems for Trapped Ions, connectedTo, Quantum Simulation>
+<Vacuum Systems for Trapped Ions, connectedTo, Quantum Software Development Kit>
diff --git a/test/graphviz/scanned_hard/graphviz_165.txt b/test/graphviz/scanned_hard/graphviz_165.txt
new file mode 100644
index 0000000000000000000000000000000000000000..14f66773de1b619e13ccc5dcc4e4ea785df4c4b0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_165.txt
@@ -0,0 +1,23 @@
+<Cryogenic Systems for Qubits, connectedTo, Quantum Bit Design>
+<Decoherence Mitigation, connectedTo, Quantum Entanglement Generation>
+<Decoherence Mitigation, validates, Quantum Error Correction>
+<Material Science Simulations, connectedTo, Quantum Computing Benchmarking>
+<Material Science Simulations, partOf, Material Science Simulations>
+<Quantum Annealing, factors, Quantum Supremacy Claims>
+<Quantum Bit Design, connectedTo, Quantum Computing Benchmarking>
+<Quantum Bit Design, connectedTo, Quantum Error Correction>
+<Quantum Bit Design, manages, Quantum Circuit Design>
+<Quantum Bit Design, researches, Photonic Qubits>
+<Quantum Circuit Design, connectedTo, Material Science Simulations>
+<Quantum Circuit Design, partOf, Quantum Circuit Design>
+<Quantum Cloud Computing Services, connectedTo, Quantum Computing Benchmarking>
+<Quantum Communication Protocols, connectedTo, Decoherence Mitigation>
+<Quantum Computing Benchmarking, secures, Quantum Sensing>
+<Quantum Computing for AI, connectedTo, Cryogenic Systems for Qubits>
+<Quantum Entanglement Generation, connectedTo, Quantum Computing for AI>
+<Quantum Entanglement Generation, connectedTo, Quantum Error Correction>
+<Quantum Error Correction, connectedTo, Quantum Annealing>
+<Quantum Error Correction, connectedTo, Quantum Sensing>
+<Quantum Error Correction, programs, Quantum Cloud Computing Services>
+<Quantum Sensing, measures, Photonic Qubits>
+<Quantum Supremacy Claims, integrates, Quantum Cloud Computing Services>
diff --git a/test/graphviz/scanned_hard/graphviz_166.dot b/test/graphviz/scanned_hard/graphviz_166.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b91830dc3a61aee896f42091dd1a1060feb0b6c2
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_166.dot
@@ -0,0 +1,37 @@
+digraph {
+	rankdir=TD
+	N0 [label="Ethical Considerations in AR or VR" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N1 [label="Performance Optimization" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N2 [label="Headset Development" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N3 [label="AR for Navigation" color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+	N4 [label="Hand Tracking and Interaction" color="#DCE775" fillcolor="#FCFCE7" shape=octagon style=filled]
+	N5 [label="Training Simulations" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	N6 [label="Architectural Visualization" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N7 [label="Augmented Reality App Development" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N8 [label="Hardware Prototyping" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	S0 [label="" color="#DCE775" fillcolor="#FCFCE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Industrial Maintenance Support" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Live Event Streaming in VR" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+		nest0_1 [label="Haptic Feedback Integration" color="#4FC3F7" fillcolor="#E1F5FE" shape=octagon style=filled]
+		nest0_2 [label="User Experience Testing" color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#4FC3F7" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#4FC3F7" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=secures color="#4FC3F7" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=streamlines color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=designs color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N1 -> nest0_0 [label=trains color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N2 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N3 [label=calibrates color="#4FC3F7" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N6 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	nest0_0 -> N8 [label=navigates color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N1 -> N8 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_166.txt b/test/graphviz/scanned_hard/graphviz_166.txt
new file mode 100644
index 0000000000000000000000000000000000000000..921588e6b64e257d9b6f95e759f9d0e9ee40b8af
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_166.txt
@@ -0,0 +1,19 @@
+<AR for Navigation, streamlines, Hand Tracking and Interaction>
+<Architectural Visualization, connectedTo, Augmented Reality App Development>
+<Augmented Reality App Development, designs, Hardware Prototyping>
+<Ethical Considerations in AR or VR, connectedTo, Performance Optimization>
+<Hand Tracking and Interaction, connectedTo, Training Simulations>
+<Haptic Feedback Integration, connectedTo, User Experience Testing>
+<Haptic Feedback Integration, partOf, Haptic Feedback Integration>
+<Headset Development, secures, AR for Navigation>
+<Live Event Streaming in VR, connectedTo, Haptic Feedback Integration>
+<Live Event Streaming in VR, navigates, Hardware Prototyping>
+<Live Event Streaming in VR, partOf, Live Event Streaming in VR>
+<Performance Optimization, calibrates, AR for Navigation>
+<Performance Optimization, connectedTo, Architectural Visualization>
+<Performance Optimization, connectedTo, Hardware Prototyping>
+<Performance Optimization, connectedTo, Headset Development>
+<Performance Optimization, trains, Live Event Streaming in VR>
+<Training Simulations, connectedTo, Architectural Visualization>
+<User Experience Testing, connectedTo, Headset Development>
+<User Experience Testing, partOf, User Experience Testing>
diff --git a/test/graphviz/scanned_hard/graphviz_167.txt b/test/graphviz/scanned_hard/graphviz_167.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7713ae6e926c9227cbbad2be5fbafa66a6b06898
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_167.txt
@@ -0,0 +1,23 @@
+<3D Model Creation, connectedTo, Hand Tracking and Interaction>
+<3D Model Creation, partOf, 3D Model Creation>
+<Comfort and Ergonomics Design, connectedTo, 3D Model Creation>
+<Comfort and Ergonomics Design, partOf, Comfort and Ergonomics Design>
+<Gesture Recognition, connectedTo, Neuro_VR Interfaces>
+<Gesture Recognition, connectedTo, User Interface Design>
+<Hand Tracking and Interaction, connectedTo, Industrial Maintenance Support>
+<Hardware Prototyping, connectedTo, Neuro_VR Interfaces>
+<Hardware Prototyping, connectedTo, Training Simulations>
+<Hardware Prototyping, develops, Virtual Showrooms>
+<Headset Development, partOf, Headset Development>
+<Headset Development, secures, Comfort and Ergonomics Design>
+<Industrial Maintenance Support, connectedTo, Ethical Considerations in AR or VR>
+<Neuro_VR Interfaces, collaborates, Virtual Showrooms>
+<Neuro_VR Interfaces, connectedTo, Headset Development>
+<Training Simulations, connectedTo, Ethical Considerations in AR or VR>
+<Training Simulations, connectedTo, Neuro_VR Interfaces>
+<Training Simulations, connects, Virtual Showrooms>
+<User Interface Design, connectedTo, Virtual Showrooms>
+<User Interface Design, personalizes, Hardware Prototyping>
+<Virtual Showrooms, connectedTo, Industrial Maintenance Support>
+<Virtual Showrooms, interacts, Hand Tracking and Interaction>
+<Virtual Showrooms, maps, Ethical Considerations in AR or VR>
diff --git a/test/graphviz/scanned_hard/graphviz_168.dot b/test/graphviz/scanned_hard/graphviz_168.dot
new file mode 100644
index 0000000000000000000000000000000000000000..29f9dec5918879784c05200418c9770f940adf59
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_168.dot
@@ -0,0 +1,53 @@
+digraph {
+	rankdir=TD
+	N0 [label="Spatial Audio Implementation" color="#C2B2F0" fillcolor="#EFE6FF" shape=ellipse style=filled]
+	N1 [label="Eye Tracking" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N2 [label="Live Event Streaming in VR" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N3 [label="Immersive Storytelling" color="#C2B2F0" fillcolor="#EFE6FF" shape=diamond style=filled]
+	N4 [label="Industrial Maintenance Support" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N5 [label="Virtual Reality Game Development" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N6 [label="Hardware Prototyping" color="#A1D7CD" fillcolor="#EDF5F3" shape=folder style=filled]
+	N7 [label="Environment Mapping" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N8 [label="Latency Reduction" color="#94C0C0" fillcolor="#CADEDE" shape=diamond style=filled]
+	N9 [label="AR for Navigation" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N10 [label="Tracking System Calibration" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N11 [label="Gesture Recognition" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N12 [label="Facial Recognition in AR or VR" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N13 [label="Content Creation for AR or VR" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	S0 [label="" color="#94C0C0" fillcolor="#CADEDE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#A1D7CD" fillcolor="#EDF5F3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#C2B2F0" fillcolor="#EFE6FF" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Medical Applications" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Data Visualization in AR or VR" color="#C2B2F0" fillcolor="#EFE6FF" shape=hexagon style=filled]
+		nest0_1 [label="Educational Content Development" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [label=optimizes color="#A1D7CD" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=tests color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=displays color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#C2B2F0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#A1D7CD" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=designs color="#A1D7CD" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [color="#C2B2F0" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N10 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N8 -> S0 [color="#C2B2F0" dir=forward penwidth=1.5 style=solid]
+	S0 -> N13 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	S0 -> N12 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N10 [color="#C2B2F0" dir=forward penwidth=1.5 style=solid]
+	N10 -> M0 [color="#C2B2F0" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [color="#A1D7CD" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [label=captures color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N12 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> M1 [color="#A1D7CD" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M1 -> N9 [color="#A1D7CD" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_168.txt b/test/graphviz/scanned_hard/graphviz_168.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c4aedb15834fddaa5cdb8769cdb8e8e5e68c3778
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_168.txt
@@ -0,0 +1,26 @@
+<AR for Navigation, connectedTo, Tracking System Calibration>
+<Data Visualization in AR or VR, optimizes, Educational Content Development>
+<Data Visualization in AR or VR, partOf, Data Visualization in AR or VR>
+<Educational Content Development, connectedTo, Tracking System Calibration>
+<Educational Content Development, partOf, Educational Content Development>
+<Environment Mapping, connectedTo, AR for Navigation>
+<Environment Mapping, connectedTo, Latency Reduction>
+<Eye Tracking, captures, Facial Recognition in AR or VR>
+<Eye Tracking, tests, Live Event Streaming in VR>
+<Facial Recognition in AR or VR, connectedTo, Content Creation for AR or VR>
+<Gesture Recognition, connectedTo, Facial Recognition in AR or VR>
+<Hardware Prototyping, connectedTo, AR for Navigation>
+<Hardware Prototyping, connectedTo, Environment Mapping>
+<Immersive Storytelling, connectedTo, Data Visualization in AR or VR>
+<Immersive Storytelling, connectedTo, Industrial Maintenance Support>
+<Industrial Maintenance Support, connectedTo, Facial Recognition in AR or VR>
+<Industrial Maintenance Support, displays, Virtual Reality Game Development>
+<Latency Reduction, connectedTo, Content Creation for AR or VR>
+<Latency Reduction, connectedTo, Facial Recognition in AR or VR>
+<Latency Reduction, connectedTo, Tracking System Calibration>
+<Latency Reduction, designs, AR for Navigation>
+<Live Event Streaming in VR, connectedTo, Immersive Storytelling>
+<Spatial Audio Implementation, connectedTo, Eye Tracking>
+<Tracking System Calibration, connectedTo, Facial Recognition in AR or VR>
+<Tracking System Calibration, connectedTo, Gesture Recognition>
+<Virtual Reality Game Development, connectedTo, Hardware Prototyping>
diff --git a/test/graphviz/scanned_hard/graphviz_17.dot b/test/graphviz/scanned_hard/graphviz_17.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cb8c68d21ba1294943a9a5968790d498817f7f12
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_17.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=LR
+	N0 [label="Legislation Review" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+	N1 [label="Citizen Feedback" color="#FFE69C" fillcolor="#FFF9D4" shape=hexagon style=filled]
+	N2 [label="Public Sector Procurement" color="#4285F4" fillcolor="#D0E0F8" shape=diamond style=filled]
+	N3 [label="Passport Issuance" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	N4 [label="Public Health Initiative" color="#FFE69C" fillcolor="#FFF9D4" shape=diamond style=filled]
+	N5 [label="Grant Distribution" color="#6FE1D5" fillcolor="#C9EFEC" shape=box style=filled]
+	N6 [label="Code Enforcement" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	N7 [label="National Defense" color="#4285F4" fillcolor="#D0E0F8" shape=oval style=filled]
+	N8 [label="Public Records Request" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	N0 -> N1 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=develops color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=monitors color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=analyzes color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=evaluates color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=publishes color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N5 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N5 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_17.txt b/test/graphviz/scanned_hard/graphviz_17.txt
new file mode 100644
index 0000000000000000000000000000000000000000..eecc642d29b9c165292f7de624223ff92815cc47
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_17.txt
@@ -0,0 +1,10 @@
+<Citizen Feedback, connectedTo, Grant Distribution>
+<Citizen Feedback, develops, Public Sector Procurement>
+<Code Enforcement, connectedTo, Grant Distribution>
+<Code Enforcement, connectedTo, National Defense>
+<Grant Distribution, connectedTo, Code Enforcement>
+<Legislation Review, connectedTo, Citizen Feedback>
+<National Defense, publishes, Public Records Request>
+<Passport Issuance, analyzes, Public Health Initiative>
+<Public Health Initiative, evaluates, Grant Distribution>
+<Public Sector Procurement, monitors, Passport Issuance>
diff --git a/test/graphviz/scanned_hard/graphviz_170.dot b/test/graphviz/scanned_hard/graphviz_170.dot
new file mode 100644
index 0000000000000000000000000000000000000000..61ac2cd679a76976dc0110cd3d0315dd7d194bd0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_170.dot
@@ -0,0 +1,51 @@
+digraph {
+	rankdir=TD
+	N0 [label="Game Analytics" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N1 [label="Physics Simulation" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N2 [label="Mobile Game Development" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N3 [label=Localization color="#FFCC80" fillcolor="#FFF0CC" shape=diamond style=filled]
+	N4 [label="Art Direction" color="#26A69A" fillcolor="#E0F2F1" shape=Mdiamond style=filled]
+	N5 [label="Engine Development" color="#FFCC80" fillcolor="#FFF0CC" shape=hexagon style=filled]
+	N6 [label="Augmented Reality Gaming" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N7 [label="User Interface Design" color="#AB47BC" fillcolor="#F3E5F5" shape=diamond style=filled]
+	N8 [label="Monetization Strategy" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N9 [label="Game Engine Customization" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N10 [label="Narrative Design" color="#FFCC80" fillcolor="#FFF0CC" shape=plaintext style=filled]
+	N11 [label="Player Feedback Integration" color="#26A69A" fillcolor="#E0F2F1" shape=folder style=filled]
+	N12 [label="Game Performance Optimization" color="#FFCC80" fillcolor="#FFF0CC" shape=oval style=filled]
+	N13 [label="Sound Design" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	S0 [label="" color="#AB47BC" fillcolor="#F3E5F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#26A69A" fillcolor="#E0F2F1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Community Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label=Storytelling color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+		nest0_1 [label="In_Game Economy Design" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+		nest0_2 [label="Game Publishing" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+		nest0_3 [label="AI Behavior Programming" color="#26A69A" fillcolor="#E0F2F1" shape=plaintext style=filled]
+		nest0_0 -> nest0_1 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [label=engineers color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=scores color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=markets color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=creates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [label=broadcasts color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> nest0_0 [label=researches color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> S0 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N12 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	S0 -> N13 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	M0 -> N6 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_170.txt b/test/graphviz/scanned_hard/graphviz_170.txt
new file mode 100644
index 0000000000000000000000000000000000000000..14cbc8b02ba38b6cc6ab6954c6886a0626949717
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_170.txt
@@ -0,0 +1,26 @@
+<AI Behavior Programming, connectedTo, Mobile Game Development>
+<AI Behavior Programming, partOf, AI Behavior Programming>
+<Art Direction, creates, Engine Development>
+<Augmented Reality Gaming, connectedTo, User Interface Design>
+<Engine Development, connectedTo, Augmented Reality Gaming>
+<Game Analytics, connectedTo, Physics Simulation>
+<Game Engine Customization, connectedTo, Narrative Design>
+<Game Performance Optimization, connectedTo, Sound Design>
+<Game Publishing, connectedTo, AI Behavior Programming>
+<Game Publishing, partOf, Game Publishing>
+<In_Game Economy Design, engineers, Game Publishing>
+<In_Game Economy Design, partOf, In_Game Economy Design>
+<Localization, connectedTo, Art Direction>
+<Mobile Game Development, connectedTo, Augmented Reality Gaming>
+<Mobile Game Development, markets, Localization>
+<Mobile Game Development, researches, Storytelling>
+<Monetization Strategy, connectedTo, Game Engine Customization>
+<Narrative Design, connectedTo, Game Performance Optimization>
+<Narrative Design, connectedTo, Player Feedback Integration>
+<Narrative Design, connectedTo, Sound Design>
+<Physics Simulation, connectedTo, Augmented Reality Gaming>
+<Physics Simulation, scores, Mobile Game Development>
+<Player Feedback Integration, broadcasts, Game Performance Optimization>
+<Storytelling, connectedTo, In_Game Economy Design>
+<Storytelling, partOf, Storytelling>
+<User Interface Design, connectedTo, Monetization Strategy>
diff --git a/test/graphviz/scanned_hard/graphviz_171.dot b/test/graphviz/scanned_hard/graphviz_171.dot
new file mode 100644
index 0000000000000000000000000000000000000000..50da73242110e220ed5cea972c090d7f0c292ca9
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_171.dot
@@ -0,0 +1,33 @@
+digraph {
+	rankdir=RL
+	N0 [label="Narrative Design" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N1 [label="User Interface Design" color="#A1887F" fillcolor="#EFEBE9" shape=ellipse style=filled]
+	N2 [label="Game Publishing" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N3 [label="Live Operations" color="#DCE775" fillcolor="#FCFCE7" shape=hexagon style=filled]
+	N4 [label="Game Design" color="#A1887F" fillcolor="#EFEBE9" shape=diamond style=filled]
+	N5 [label="Network Code Optimization" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	S0 [label="" color="#AED581" fillcolor="#F0F4C3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Esports Event Organization" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Art Direction" color="#DCE775" fillcolor="#FCFCE7" shape=octagon style=filled]
+		nest0_1 [label="Augmented Reality Gaming" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+		nest0_2 [label="User Experience Design" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+		nest0_3 [label="Game Analytics" color="#A1887F" fillcolor="#EFEBE9" shape=box style=filled]
+		nest0_0 -> nest0_1 [label=publishes color="#AED581" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=animates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N2 -> nest0_0 [label=localizes color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N1 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N2 -> S0 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N5 [label=monetizes color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N1 [label=broadcasts color="#A1887F" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_171.txt b/test/graphviz/scanned_hard/graphviz_171.txt
new file mode 100644
index 0000000000000000000000000000000000000000..faaba65153724fdf787664b32ee9dc663c70144a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_171.txt
@@ -0,0 +1,18 @@
+<Art Direction, partOf, Art Direction>
+<Art Direction, publishes, Augmented Reality Gaming>
+<Augmented Reality Gaming, connectedTo, User Experience Design>
+<Augmented Reality Gaming, partOf, Augmented Reality Gaming>
+<Game Analytics, connectedTo, User Interface Design>
+<Game Analytics, monetizes, Network Code Optimization>
+<Game Analytics, partOf, Game Analytics>
+<Game Design, broadcasts, User Interface Design>
+<Game Design, connectedTo, Network Code Optimization>
+<Game Publishing, connectedTo, Game Design>
+<Game Publishing, connectedTo, Live Operations>
+<Game Publishing, connectedTo, Network Code Optimization>
+<Game Publishing, localizes, Art Direction>
+<Live Operations, connectedTo, Game Design>
+<Narrative Design, connectedTo, User Interface Design>
+<User Experience Design, connectedTo, Game Analytics>
+<User Experience Design, partOf, User Experience Design>
+<User Interface Design, animates, Game Publishing>
diff --git a/test/graphviz/scanned_hard/graphviz_172.dot b/test/graphviz/scanned_hard/graphviz_172.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8993a717ee1c7a9092bc0538ed5ce4402a93a000
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_172.dot
@@ -0,0 +1,47 @@
+digraph {
+	rankdir=BT
+	N0 [label="A&R" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N1 [label="Fan Engagement Strategy" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N2 [label="Music Education" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N3 [label="Instrumental Performance" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N4 [label="Music Production" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N5 [label=Mastering color="#EAEFA5" fillcolor="#FDFCEB" shape=Mdiamond style=filled]
+	N6 [label="Music Video Production" color="#EAEFA5" fillcolor="#FDFCEB" shape=octagon style=filled]
+	N7 [label="Digital Audio Workstation Operation" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N8 [label="Music Therapy" color="#CDDC39" fillcolor="#E6EE9C" shape=parallelogram style=filled]
+	N9 [label="Sound System Design" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	S0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#CDDC39" fillcolor="#E6EE9C" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Lyric Writing" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label=Composition color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+		nest0_1 [label="Music Festival Organization" color="#CDDC39" fillcolor="#E6EE9C" shape=Mdiamond style=filled]
+		nest0_2 [label="Music Publishing" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+		nest0_3 [label="Music for Film or TV or Games" color="#CDDC39" fillcolor="#E6EE9C" shape=oval style=filled]
+		nest0_0 -> nest0_1 [label=reviews color="#9575CD" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [label=transcribes color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=performs color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=invests color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=produces color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest0_0 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N8 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	N0 -> S0 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	S0 -> N2 [label=markets color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	M0 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_172.txt b/test/graphviz/scanned_hard/graphviz_172.txt
new file mode 100644
index 0000000000000000000000000000000000000000..74f07d1a1344a277ca460a87c3fbeb3d0273d33a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_172.txt
@@ -0,0 +1,24 @@
+<A&R, connectedTo, Mastering>
+<A&R, connectedTo, Music Therapy>
+<A&R, connectedTo, Music Video Production>
+<A&R, markets, Music Education>
+<A&R, transcribes, Fan Engagement Strategy>
+<Composition, partOf, Composition>
+<Composition, reviews, Music Festival Organization>
+<Digital Audio Workstation Operation, produces, Music Therapy>
+<Fan Engagement Strategy, connectedTo, Composition>
+<Fan Engagement Strategy, performs, Music Education>
+<Instrumental Performance, connectedTo, Mastering>
+<Instrumental Performance, connectedTo, Music Production>
+<Mastering, connectedTo, Music Video Production>
+<Music Education, connectedTo, Instrumental Performance>
+<Music Festival Organization, connectedTo, Music Publishing>
+<Music Festival Organization, partOf, Music Festival Organization>
+<Music Production, connectedTo, Mastering>
+<Music Production, connectedTo, Music Video Production>
+<Music Publishing, connectedTo, Music for Film or TV or Games>
+<Music Publishing, partOf, Music Publishing>
+<Music Therapy, connectedTo, Sound System Design>
+<Music Video Production, invests, Digital Audio Workstation Operation>
+<Music for Film or TV or Games, connectedTo, Music Therapy>
+<Music for Film or TV or Games, partOf, Music for Film or TV or Games>
diff --git a/test/graphviz/scanned_hard/graphviz_173.dot b/test/graphviz/scanned_hard/graphviz_173.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fe627c73f82b39074986335030e47c3b4e532985
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_173.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=RL
+	N0 [label="Artist Management" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N1 [label=Songwriting color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+	N2 [label=Composition color="#BDAFA8" fillcolor="#E4E0DF" shape=box style=filled]
+	N3 [label="Music Therapy" color="#FFB2A5" fillcolor="#FFDCD6" shape=oval style=filled]
+	N4 [label="Record Label Operations" color="#BDAFA8" fillcolor="#E4E0DF" shape=plaintext style=filled]
+	N5 [label="Royalty Collection" color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+	N6 [label="Vocal Performance" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	N7 [label="Synthesizer Programming" color="#BDAFA8" fillcolor="#E4E0DF" shape=ellipse style=filled]
+	S0 [label="" color="#BDAFA8" fillcolor="#E4E0DF" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#BDAFA8" fillcolor="#E4E0DF" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#BDAFA8" fillcolor="#E4E0DF" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Sound Design for Media" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label=Ticketing color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+		nest0_1 [label="Instrumental Performance" color="#A188D0" fillcolor="#DACBE3" shape=parallelogram style=filled]
+		nest0_2 [label=Arrangement color="#FFB2A5" fillcolor="#FFDCD6" shape=oval style=filled]
+		nest0_3 [label="Music for Film or TV or Games" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#BDAFA8" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#FFB2A5" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=synthesizes color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=reviews color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=distributes color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N7 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S0 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N6 [label=generates color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [label=learns color="#FFB2A5" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [label=invests color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N4 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M1 [color="#BDAFA8" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_176.txt b/test/graphviz/scanned_hard/graphviz_176.txt
new file mode 100644
index 0000000000000000000000000000000000000000..646f72a698b6b78c491c39d338d112a1f7deb9e2
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_176.txt
@@ -0,0 +1,19 @@
+<Casting, connectedTo, Script Development>
+<Crew Management, scripts, Green Production Practices>
+<Directing, connectedTo, Special Effects>
+<Directing, partOf, Directing>
+<Green Production Practices, films, Screenwriting Workshops>
+<Prop Management, connectedTo, Production Scheduling>
+<Remote Collaboration Tools, animates, Crew Management>
+<Remote Collaboration Tools, connectedTo, Production Scheduling>
+<Screenwriting Workshops, connectedTo, Production Scheduling>
+<Screenwriting Workshops, connectedTo, Prop Management>
+<Screenwriting Workshops, connectedTo, Tax Incentive Management>
+<Screenwriting Workshops, publishes, Sound Recording>
+<Script Development, connectedTo, Production Scheduling>
+<Script Development, connectedTo, Remote Collaboration Tools>
+<Sound Recording, partOf, Sound Recording>
+<Sound Recording, secures, Directing>
+<Special Effects, connectedTo, Remote Collaboration Tools>
+<Special Effects, partOf, Special Effects>
+<Tax Incentive Management, budgets, Prop Management>
diff --git a/test/graphviz/scanned_hard/graphviz_177.dot b/test/graphviz/scanned_hard/graphviz_177.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f56bc4cd8a2e2af56843b88ffc3856cfc086dd0f
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_177.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=BT
+	N0 [label=Directing color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N1 [label="Digital Asset Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+	N2 [label="Special Effects" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N3 [label="Tax Incentive Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+	N4 [label="Talent Negotiation" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N5 [label="Sound Recording" color="#F06292" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	N6 [label="Set Construction" color="#FFEB3B" fillcolor="#FFF9C4" shape=plaintext style=filled]
+	N7 [label="Stunt Coordination" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	S0 [label="" color="#673AB7" fillcolor="#D1C4E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#F06292" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#673AB7" fillcolor="#D1C4E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Costume Design" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Archiving and Preservation" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+		nest0_1 [label="Crew Management" color="#673AB7" fillcolor="#D1C4E9" shape=folder style=filled]
+		nest0_2 [label="Distribution Strategy" color="#FFEB3B" fillcolor="#FFF9C4" shape=folder style=filled]
+		nest0_3 [label="Pre_production Planning" color="#FFEB3B" fillcolor="#FFF9C4" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=finances color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest0_0 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N5 [label=produces color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> S0 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N4 [label=edits color="#F06292" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [label=composes color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N1 -> S1 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N4 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [label=scores color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N4 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_177.txt b/test/graphviz/scanned_hard/graphviz_177.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c4c30652697674b501480aa820db9ac81155a5e5
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_177.txt
@@ -0,0 +1,22 @@
+<Archiving and Preservation, connectedTo, Crew Management>
+<Archiving and Preservation, partOf, Archiving and Preservation>
+<Crew Management, connectedTo, Distribution Strategy>
+<Crew Management, partOf, Crew Management>
+<Digital Asset Management, connectedTo, Set Construction>
+<Digital Asset Management, connectedTo, Special Effects>
+<Digital Asset Management, connectedTo, Talent Negotiation>
+<Directing, connectedTo, Digital Asset Management>
+<Directing, connectedTo, Talent Negotiation>
+<Distribution Strategy, connectedTo, Pre_production Planning>
+<Distribution Strategy, partOf, Distribution Strategy>
+<Pre_production Planning, partOf, Pre_production Planning>
+<Pre_production Planning, produces, Sound Recording>
+<Set Construction, connectedTo, Stunt Coordination>
+<Sound Recording, finances, Set Construction>
+<Special Effects, composes, Stunt Coordination>
+<Special Effects, connectedTo, Tax Incentive Management>
+<Special Effects, edits, Talent Negotiation>
+<Special Effects, scores, Talent Negotiation>
+<Talent Negotiation, connectedTo, Sound Recording>
+<Tax Incentive Management, connectedTo, Archiving and Preservation>
+<Tax Incentive Management, connectedTo, Talent Negotiation>
diff --git a/test/graphviz/scanned_hard/graphviz_179.dot b/test/graphviz/scanned_hard/graphviz_179.dot
new file mode 100644
index 0000000000000000000000000000000000000000..916846ad9cca27c00ff49ed2eedfda975e137273
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_179.dot
@@ -0,0 +1,47 @@
+digraph {
+	rankdir=TD
+	N0 [label="Graphic Design" color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+	N1 [label="Newsletter Creation" color="#CB9BE1" fillcolor="#F2E6F5" shape=plaintext style=filled]
+	N2 [label="Video Scripting" color="#CB9BE1" fillcolor="#F2E6F5" shape=parallelogram style=filled]
+	N3 [label="Plagiarism Checking" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+	N4 [label="Blog Post Writing" color="#42A5F5" fillcolor="#F1F8FF" shape=parallelogram style=filled]
+	N5 [label=Photography color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+	N6 [label=Copywriting color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N7 [label="Call to Action Design" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	N8 [label="Live Streaming Content" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N9 [label="Content Management System Operation" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+	N10 [label="Distribution Planning" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N11 [label="Search Engine Optimization" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+	N12 [label="Keyword Research" color="#42A5F5" fillcolor="#F1F8FF" shape=diamond style=filled]
+	N13 [label=Animation color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Drafting Content" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Influencer Collaboration" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+		nest0_1 [label="Interview Conduct" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+		nest0_2 [label="Social Media Post Creation" color="#42A5F5" fillcolor="#F1F8FF" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [label=tracks color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label=engages color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#CB9BE1" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=proofreads color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=analyzes color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=podcasts color="#CB9BE1" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [label=reports color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N12 -> nest0_0 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N12 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N7 -> nest0_1 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> nest0_1 [color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	N0 -> nest0_0 [color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	N0 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N10 [label=photographs color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_179.txt b/test/graphviz/scanned_hard/graphviz_179.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fd55939f446a02ba0c74a33abbb78b626cf19d69
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_179.txt
@@ -0,0 +1,26 @@
+<Blog Post Writing, connectedTo, Photography>
+<Call to Action Design, connectedTo, Interview Conduct>
+<Call to Action Design, podcasts, Live Streaming Content>
+<Content Management System Operation, connectedTo, Distribution Planning>
+<Copywriting, connectedTo, Call to Action Design>
+<Distribution Planning, connectedTo, Interview Conduct>
+<Distribution Planning, connectedTo, Search Engine Optimization>
+<Graphic Design, connectedTo, Influencer Collaboration>
+<Graphic Design, connectedTo, Plagiarism Checking>
+<Graphic Design, engages, Newsletter Creation>
+<Influencer Collaboration, connectedTo, Interview Conduct>
+<Influencer Collaboration, partOf, Influencer Collaboration>
+<Interview Conduct, partOf, Interview Conduct>
+<Interview Conduct, tracks, Social Media Post Creation>
+<Keyword Research, connectedTo, Animation>
+<Keyword Research, connectedTo, Influencer Collaboration>
+<Keyword Research, connectedTo, Plagiarism Checking>
+<Live Streaming Content, connectedTo, Content Management System Operation>
+<Live Streaming Content, photographs, Distribution Planning>
+<Newsletter Creation, connectedTo, Video Scripting>
+<Photography, connectedTo, Copywriting>
+<Plagiarism Checking, analyzes, Blog Post Writing>
+<Search Engine Optimization, reports, Keyword Research>
+<Social Media Post Creation, connectedTo, Keyword Research>
+<Social Media Post Creation, partOf, Social Media Post Creation>
+<Video Scripting, proofreads, Plagiarism Checking>
diff --git a/test/graphviz/scanned_hard/graphviz_180.dot b/test/graphviz/scanned_hard/graphviz_180.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ae62d6d7c4492441b54cc402a61762996cd3ab18
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_180.dot
@@ -0,0 +1,47 @@
+digraph {
+	rankdir=LR
+	N0 [label=Animation color="#82DAFF" fillcolor="#C8EDFF" shape=ellipse style=filled]
+	N1 [label="Ideation and Brainstorming" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+	N2 [label="Blog Post Writing" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+	N3 [label="Transcribing Audio or Video" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N4 [label=Branding color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+	N5 [label="Newsletter Creation" color="#82DAFF" fillcolor="#C8EDFF" shape=diamond style=filled]
+	N6 [label="Drafting Content" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N7 [label="Search Engine Optimization" color="#82DAFF" fillcolor="#C8EDFF" shape=hexagon style=filled]
+	N8 [label="Live Streaming Content" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N9 [label="Audience Analysis" color="#82DAFF" fillcolor="#C8EDFF" shape=box style=filled]
+	N10 [label="Content Strategy Development" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N11 [label="Graphic Design" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+	N12 [label="Voice Acting or Narration" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N13 [label=Videography color="#82DAFF" fillcolor="#C8EDFF" shape=box style=filled]
+	N14 [label="Interview Conduct" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	S0 [label="" color="#6EB76D" fillcolor="#E9F7E8" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Performance Tracking" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Monetization Strategy" color="#6EB76D" fillcolor="#E9F7E8" shape=diamond style=filled]
+		nest0_1 [label="Distribution Planning" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=designs color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=translates color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=collaborates color="#82DAFF" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=curates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=ideates color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=personalizes color="#82DAFF" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [label=shares color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#82DAFF" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#82DAFF" dir=forward penwidth=1.5 style=solid]
+	N10 -> nest0_0 [color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N4 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N7 -> S0 [color="#82DAFF" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N12 [label=streams color="#000000" dir=forward penwidth=1.5 style=solid]
+	N13 -> N5 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N4 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_180.txt b/test/graphviz/scanned_hard/graphviz_180.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fa2a9c8346fe5349b6f06c3f65e2c044ecdce68b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_180.txt
@@ -0,0 +1,23 @@
+<Animation, connectedTo, Ideation and Brainstorming>
+<Audience Analysis, connectedTo, Branding>
+<Audience Analysis, connectedTo, Content Strategy Development>
+<Blog Post Writing, translates, Transcribing Audio or Video>
+<Branding, connectedTo, Newsletter Creation>
+<Content Strategy Development, connectedTo, Graphic Design>
+<Content Strategy Development, connectedTo, Monetization Strategy>
+<Distribution Planning, connectedTo, Branding>
+<Distribution Planning, partOf, Distribution Planning>
+<Drafting Content, ideates, Search Engine Optimization>
+<Graphic Design, shares, Voice Acting or Narration>
+<Ideation and Brainstorming, designs, Blog Post Writing>
+<Live Streaming Content, connectedTo, Audience Analysis>
+<Monetization Strategy, connectedTo, Distribution Planning>
+<Monetization Strategy, partOf, Monetization Strategy>
+<Newsletter Creation, curates, Drafting Content>
+<Search Engine Optimization, connectedTo, Audience Analysis>
+<Search Engine Optimization, personalizes, Live Streaming Content>
+<Search Engine Optimization, streams, Voice Acting or Narration>
+<Transcribing Audio or Video, collaborates, Branding>
+<Videography, connectedTo, Interview Conduct>
+<Videography, connectedTo, Newsletter Creation>
+<Voice Acting or Narration, connectedTo, Videography>
diff --git a/test/graphviz/scanned_hard/graphviz_181.txt b/test/graphviz/scanned_hard/graphviz_181.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a4c22e18df55a9af10be30443e33e7f20fb500ff
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_181.txt
@@ -0,0 +1,20 @@
+<Business User Training on Analytics, cleans, Data Governance>
+<Business User Training on Analytics, connectedTo, Risk Analytics>
+<Dashboard Creation, connectedTo, Business User Training on Analytics>
+<Dashboard Creation, connectedTo, Data Cleaning>
+<Dashboard Creation, connectedTo, Risk Analytics>
+<Dashboard Creation, pipelines, Data Visualization>
+<Data Cleaning, forecasts, Business User Training on Analytics>
+<Data Collection, connectedTo, Data Cleaning>
+<Data Collection, partOf, Data Collection>
+<Data Governance, connectedTo, Healthcare Data Analysis>
+<Data Governance, partOf, Data Governance>
+<Data Quality Assurance, connectedTo, Data Cleaning>
+<Data Visualization, connectedTo, Business User Training on Analytics>
+<Data Visualization, dashboards, Business User Training on Analytics>
+<Data Visualization, mines, Data Quality Assurance>
+<Data Visualization, processes, Risk Analytics>
+<Financial Data Analysis, connectedTo, Data Collection>
+<Financial Data Analysis, partOf, Financial Data Analysis>
+<Healthcare Data Analysis, connectedTo, Financial Data Analysis>
+<Healthcare Data Analysis, partOf, Healthcare Data Analysis>
diff --git a/test/graphviz/scanned_hard/graphviz_182.txt b/test/graphviz/scanned_hard/graphviz_182.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ce7a72d753f616198b66a42d8741e3455aaeda89
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_182.txt
@@ -0,0 +1,18 @@
+<Business User Training on Analytics, connectedTo, HR Data Analytics>
+<Cloud_based Data Platforms, connectedTo, Healthcare Data Analysis>
+<Data Visualization, connectedTo, Social Media Analytics>
+<Data Visualization, partOf, Data Visualization>
+<Data Warehouse Design, dashboards, Cloud_based Data Platforms>
+<ETL Process Management, connectedTo, Data Warehouse Design>
+<ETL Process Management, connectedTo, HR Data Analytics>
+<ETL Process Management, connectedTo, Healthcare Data Analysis>
+<ETL Process Management, connectedTo, Report Generation>
+<HR Data Analytics, connectedTo, Data Warehouse Design>
+<HR Data Analytics, connectedTo, Healthcare Data Analysis>
+<HR Data Analytics, correlates, Web Analytics>
+<Report Generation, architects, HR Data Analytics>
+<Report Generation, connectedTo, Business User Training on Analytics>
+<Report Generation, connectedTo, Data Visualization>
+<Social Media Analytics, partOf, Social Media Analytics>
+<Social Media Analytics, segments, Cloud_based Data Platforms>
+<Web Analytics, processes, Data Warehouse Design>
diff --git a/test/graphviz/scanned_hard/graphviz_185.dot b/test/graphviz/scanned_hard/graphviz_185.dot
new file mode 100644
index 0000000000000000000000000000000000000000..caf930bcc08144785b9aa8b91a7effc477c8558d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_185.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=BT
+	N0 [label="Query Optimization" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N1 [label="Data Quality Management" color="#42A5F5" fillcolor="#F1F8FF" shape=diamond style=filled]
+	N2 [label="Strategic Planning Support" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+	N3 [label="Dashboard Design" color="#F06292" fillcolor="#FCE4EC" shape=folder style=filled]
+	N4 [label="Data Mart Design" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	N5 [label="Cloud BI Solutions" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N6 [label="Data Governance Policies" color="#F06292" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	N7 [label="Master Data Management" color="#A188DB" fillcolor="#DED7F0" shape=ellipse style=filled]
+	S0 [label="" color="#F06292" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#F06292" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#F06292" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Supply Chain Optimization" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Market Trend Analysis" color="#A188DB" fillcolor="#DED7F0" shape=ellipse style=filled]
+		nest0_1 [label="Operational Efficiency Measurement" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+		nest0_2 [label="ETL Development" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+		nest0_3 [label="Regulatory Compliance Reporting" color="#42A5F5" fillcolor="#F1F8FF" shape=plaintext style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=forecasts color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N4 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N3 [color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N3 [label=benchmarks color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N0 -> S1 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	S1 -> N3 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	S1 -> N2 [label=complies color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [label=plans color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N4 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_185.txt b/test/graphviz/scanned_hard/graphviz_185.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6cdbdce1921c6eeeeb80c13db6c3b1b62ba3fea4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_185.txt
@@ -0,0 +1,22 @@
+<Cloud BI Solutions, connectedTo, Data Governance Policies>
+<Dashboard Design, connectedTo, Data Mart Design>
+<Data Governance Policies, connectedTo, Master Data Management>
+<Data Mart Design, connectedTo, Cloud BI Solutions>
+<Data Mart Design, connectedTo, Market Trend Analysis>
+<Data Quality Management, benchmarks, Dashboard Design>
+<Data Quality Management, connectedTo, Cloud BI Solutions>
+<Data Quality Management, connectedTo, Strategic Planning Support>
+<Data Quality Management, plans, Data Mart Design>
+<ETL Development, connectedTo, Regulatory Compliance Reporting>
+<ETL Development, partOf, ETL Development>
+<Market Trend Analysis, connectedTo, Operational Efficiency Measurement>
+<Market Trend Analysis, partOf, Market Trend Analysis>
+<Operational Efficiency Measurement, connectedTo, ETL Development>
+<Operational Efficiency Measurement, partOf, Operational Efficiency Measurement>
+<Query Optimization, complies, Strategic Planning Support>
+<Query Optimization, connectedTo, Dashboard Design>
+<Query Optimization, connectedTo, Data Quality Management>
+<Regulatory Compliance Reporting, connectedTo, Dashboard Design>
+<Regulatory Compliance Reporting, partOf, Regulatory Compliance Reporting>
+<Strategic Planning Support, connectedTo, Data Mart Design>
+<Strategic Planning Support, forecasts, Dashboard Design>
diff --git a/test/graphviz/scanned_hard/graphviz_186.dot b/test/graphviz/scanned_hard/graphviz_186.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a3033fe9e8fcd7416e6deb082ff040ddb1789556
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_186.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=BT
+	N0 [label="OLAP Cube Creation" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N1 [label="Data Lineage Tracking" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N2 [label="Competitive Analysis" color="#FFF9AE" fillcolor="#FFFCE6" shape=folder style=filled]
+	N3 [label="Data Warehousing" color="#FFF9AE" fillcolor="#FFFCE6" shape=hexagon style=filled]
+	N4 [label="Data Storytelling for Business" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N5 [label="Data Mart Design" color="#FFF9AE" fillcolor="#FFFCE6" shape=diamond style=filled]
+	N6 [label="Budget Performance Analysis" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N7 [label="Actionable Insights Generation" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N8 [label="HR Analytics Dashboards" color="#FFF9AE" fillcolor="#FFFCE6" shape=Mdiamond style=filled]
+	N9 [label="Data Modeling" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N10 [label="BI Platform Administration" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N11 [label="Query Optimization" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+	N12 [label="Sales Forecasting" color="#FFF9AE" fillcolor="#FFFCE6" shape=parallelogram style=filled]
+	N13 [label="Data Source Integration" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	S0 [label="" color="#F44336" fillcolor="#FFCDD2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#F44336" fillcolor="#FFCDD2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="User Training and Support" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Dashboard Design" color="#F44336" fillcolor="#FFCDD2" shape=plaintext style=filled]
+		nest0_1 [label="Data Security in BI" color="#FFA726" fillcolor="#FFF3E0" shape=folder style=filled]
+		nest0_2 [label="Operational Efficiency Measurement" color="#FFA726" fillcolor="#FFF3E0" shape=oval style=filled]
+		nest0_0 -> nest0_1 [label=OLAPs color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=extracts color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [label=complies color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [label=plans color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N10 -> nest0_0 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N10 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N9 -> S0 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N13 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	S0 -> N12 [label=visualizes color="#FFA726" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [label=loads color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [label=dashboards color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	M0 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N9 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_187.dot b/test/graphviz/scanned_hard/graphviz_187.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6b1e0ea7381e66b7f446c88649d39c00c70c598e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_187.dot
@@ -0,0 +1,36 @@
+digraph {
+	rankdir=BT
+	N0 [label="Market Research" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N1 [label="Marketing Automation" color="#FBC02D" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N2 [label="Search Engine Marketing" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N3 [label="Public Relations" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N4 [label="Remarketing Campaigns" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	N5 [label="Customer Segmentation" color="#80DDEA" fillcolor="#D3F7F9" shape=octagon style=filled]
+	N6 [label="Customer Relationship Management" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	S1 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Loyalty Programs" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Conversion Rate Optimization" color="#FBC02D" fillcolor="#FFFDE7" shape=octagon style=filled]
+		nest0_1 [label="Personalization Strategies" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+		nest0_2 [label="Email Marketing" color="#EAEFA5" fillcolor="#FDFCEB" shape=octagon style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label="distributes products" color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest0_0 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> S1 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N4 [label="runs SEM" color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [label="segments audiences" color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	M0 -> N5 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_187.txt b/test/graphviz/scanned_hard/graphviz_187.txt
new file mode 100644
index 0000000000000000000000000000000000000000..88e4843dac05c3de98b956dc7fff9258de0afe04
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_187.txt
@@ -0,0 +1,18 @@
+<Conversion Rate Optimization, connectedTo, Personalization Strategies>
+<Conversion Rate Optimization, partOf, Conversion Rate Optimization>
+<Customer Segmentation, connectedTo, Conversion Rate Optimization>
+<Customer Segmentation, connectedTo, Customer Relationship Management>
+<Email Marketing, connectedTo, Customer Segmentation>
+<Email Marketing, partOf, Email Marketing>
+<Market Research, connectedTo, Marketing Automation>
+<Marketing Automation, connectedTo, Customer Segmentation>
+<Marketing Automation, connectedTo, Search Engine Marketing>
+<Personalization Strategies, connectedTo, Email Marketing>
+<Personalization Strategies, partOf, Personalization Strategies>
+<Public Relations, connectedTo, Customer Segmentation>
+<Public Relations, connectedTo, Remarketing Campaigns>
+<Remarketing Campaigns, distributes products, Customer Segmentation>
+<Search Engine Marketing, connectedTo, Customer Segmentation>
+<Search Engine Marketing, connectedTo, Public Relations>
+<Search Engine Marketing, runs SEM, Remarketing Campaigns>
+<Search Engine Marketing, segments audiences, Customer Relationship Management>
diff --git a/test/graphviz/scanned_hard/graphviz_189.dot b/test/graphviz/scanned_hard/graphviz_189.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a5aa6e9888105eabc40d03bda1ca1ba7e2caaefb
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_189.dot
@@ -0,0 +1,52 @@
+digraph {
+	rankdir=BT
+	N0 [label="Video Marketing" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N1 [label="Mobile Marketing" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N2 [label="Customer Journey Mapping" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+	N3 [label=Telemarketing color="#A2D0FF" fillcolor="#E8F0FF" shape=hexagon style=filled]
+	N4 [label="Campaign Performance Tracking" color="#FFC085" fillcolor="#FFDAB9" shape=parallelogram style=filled]
+	N5 [label="Website Design and Optimization" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N6 [label="Customer Relationship Management" color="#FFC085" fillcolor="#FFDAB9" shape=parallelogram style=filled]
+	N7 [label="Direct Mail Marketing" color="#A2D0FF" fillcolor="#E8F0FF" shape=folder style=filled]
+	N8 [label="Partnership Marketing" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N9 [label="Guerilla Marketing" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N10 [label="A or B Testing for Marketing" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N11 [label="Distribution Channel Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N12 [label="Brand Strategy Development" color="#FFC085" fillcolor="#FFDAB9" shape=folder style=filled]
+	N13 [label="Experiential Marketing" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N14 [label="Search Engine Marketing" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N15 [label="Conversion Rate Optimization" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	S0 [label="" color="#90A4AE" fillcolor="#ECEFF1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#A2D0FF" fillcolor="#E8F0FF" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Social Media Marketing" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Affiliate Marketing" color="#90A4AE" fillcolor="#ECEFF1" shape=hexagon style=filled]
+		nest0_1 [label="Customer Segmentation" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label="converts customers" color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label="enhances experiences" color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label="retargets ads" color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#FFC085" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label="direct mail" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [label="optimizes conversions" color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [label=influences color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N14 -> N15 [color="#FFC085" dir=forward penwidth=1.5 style=solid]
+	N10 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N2 [label="manages affiliates" color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	N0 -> S0 [color="#FFC085" dir=forward penwidth=1.5 style=solid]
+	S0 -> N5 [label="personalizes content" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N4 [label="runs SEM" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> M0 [label="promotes sales" color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#FFC085" dir=forward penwidth=1.5 style=solid]
+	N13 -> M0 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N15 [color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_189.txt b/test/graphviz/scanned_hard/graphviz_189.txt
new file mode 100644
index 0000000000000000000000000000000000000000..91f908ea2f132b20d50f3522b069e0ac5c18d326
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_189.txt
@@ -0,0 +1,25 @@
+<A or B Testing for Marketing, connectedTo, Affiliate Marketing>
+<A or B Testing for Marketing, connectedTo, Distribution Channel Management>
+<Affiliate Marketing, connectedTo, Customer Segmentation>
+<Affiliate Marketing, partOf, Affiliate Marketing>
+<Brand Strategy Development, connectedTo, Experiential Marketing>
+<Campaign Performance Tracking, retargets ads, Website Design and Optimization>
+<Customer Journey Mapping, connectedTo, Conversion Rate Optimization>
+<Customer Journey Mapping, connectedTo, Telemarketing>
+<Customer Relationship Management, connectedTo, Direct Mail Marketing>
+<Customer Segmentation, manages affiliates, Customer Journey Mapping>
+<Customer Segmentation, partOf, Customer Segmentation>
+<Direct Mail Marketing, connectedTo, Partnership Marketing>
+<Distribution Channel Management, optimizes conversions, Brand Strategy Development>
+<Experiential Marketing, connectedTo, Conversion Rate Optimization>
+<Experiential Marketing, influences, Search Engine Marketing>
+<Guerilla Marketing, direct mail, A or B Testing for Marketing>
+<Guerilla Marketing, promotes sales, Conversion Rate Optimization>
+<Mobile Marketing, converts customers, Customer Journey Mapping>
+<Partnership Marketing, connectedTo, Guerilla Marketing>
+<Search Engine Marketing, connectedTo, Conversion Rate Optimization>
+<Telemarketing, enhances experiences, Campaign Performance Tracking>
+<Video Marketing, connectedTo, Mobile Marketing>
+<Video Marketing, personalizes content, Website Design and Optimization>
+<Video Marketing, runs SEM, Campaign Performance Tracking>
+<Website Design and Optimization, connectedTo, Customer Relationship Management>
diff --git a/test/graphviz/scanned_hard/graphviz_19.dot b/test/graphviz/scanned_hard/graphviz_19.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9215bf02a050daaf0702941ac7c2140810492385
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_19.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=BT
+	N0 [label="Supplier Selection" color="#4CAF50" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N1 [label="Brake System Check" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N2 [label="Assembly Line Setup" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N3 [label="Maintenance Scheduling" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N4 [label="Road Testing" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	N5 [label="Vehicle Registration" color="#FF9800" fillcolor="#FFE0B2" shape=Mdiamond style=filled]
+	N6 [label="Paint Application" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N7 [label="After_sales Service" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N0 -> N1 [label=produces color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=schedules color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=repairs color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=advertises color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N0 [label=supports color="#4CAF50" dir=forward penwidth=1.5 style=solid]
+	N4 -> N0 [color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_19.txt b/test/graphviz/scanned_hard/graphviz_19.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d6bf2a5020c7694127513b48f892841284998eb6
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_19.txt
@@ -0,0 +1,9 @@
+<After_sales Service, supports, Supplier Selection>
+<Assembly Line Setup, connectedTo, Maintenance Scheduling>
+<Brake System Check, schedules, Assembly Line Setup>
+<Maintenance Scheduling, connectedTo, Road Testing>
+<Paint Application, advertises, After_sales Service>
+<Road Testing, connectedTo, Supplier Selection>
+<Road Testing, connectedTo, Vehicle Registration>
+<Supplier Selection, produces, Brake System Check>
+<Vehicle Registration, repairs, Paint Application>
diff --git a/test/graphviz/scanned_hard/graphviz_190.dot b/test/graphviz/scanned_hard/graphviz_190.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e383a55582c02452d34501f6435ceff5c7929194
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_190.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=TD
+	N0 [label="Retargeting Campaigns" color="#388E3C" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N1 [label="Ad Analytics Reporting" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+	N2 [label="Digital Advertising" color="#A2D0FF" fillcolor="#E8F0FF" shape=folder style=filled]
+	N3 [label="Brand Awareness Campaigns" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	N4 [label="Display Advertising" color="#D3EB9F" fillcolor="#F8FDD3" shape=Mdiamond style=filled]
+	N5 [label="Ad Platform Management" color="#388E3C" fillcolor="#F1F8E9" shape=oval style=filled]
+	N6 [label="Television Advertising" color="#388E3C" fillcolor="#F1F8E9" shape=plaintext style=filled]
+	N7 [label="Ad Creative Development" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N8 [label="Ad Placement Optimization" color="#388E3C" fillcolor="#F1F8E9" shape=diamond style=filled]
+	N9 [label="Audience Targeting" color="#388E3C" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	S0 [label="" color="#D3EB9F" fillcolor="#F8FDD3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#A2D0FF" fillcolor="#E8F0FF" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#D3EB9F" fillcolor="#F8FDD3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label=Geo_Targeting labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Budget Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+		nest0_1 [label="Visual Design for Ads" color="#388E3C" fillcolor="#F1F8E9" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label="calculates CAC" color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> S0 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N4 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [label="A or B tests creatives" color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [label="native ads" color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [label="buys media" color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	M1 -> N5 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_190.txt b/test/graphviz/scanned_hard/graphviz_190.txt
new file mode 100644
index 0000000000000000000000000000000000000000..be69eec346383cf04fba618b94f649cd69400051
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_190.txt
@@ -0,0 +1,20 @@
+<Ad Analytics Reporting, connectedTo, Ad Platform Management>
+<Ad Analytics Reporting, connectedTo, Digital Advertising>
+<Ad Analytics Reporting, native ads, Brand Awareness Campaigns>
+<Ad Creative Development, connectedTo, Ad Placement Optimization>
+<Ad Placement Optimization, connectedTo, Audience Targeting>
+<Ad Platform Management, connectedTo, Budget Management>
+<Ad Platform Management, connectedTo, Television Advertising>
+<Brand Awareness Campaigns, connectedTo, Display Advertising>
+<Budget Management, connectedTo, Visual Design for Ads>
+<Budget Management, partOf, Budget Management>
+<Digital Advertising, buys media, Ad Platform Management>
+<Digital Advertising, connectedTo, Audience Targeting>
+<Digital Advertising, connectedTo, Brand Awareness Campaigns>
+<Digital Advertising, connectedTo, Display Advertising>
+<Display Advertising, connectedTo, Ad Platform Management>
+<Retargeting Campaigns, A or B tests creatives, Brand Awareness Campaigns>
+<Retargeting Campaigns, connectedTo, Ad Analytics Reporting>
+<Television Advertising, calculates CAC, Ad Creative Development>
+<Visual Design for Ads, connectedTo, Television Advertising>
+<Visual Design for Ads, partOf, Visual Design for Ads>
diff --git a/test/graphviz/scanned_hard/graphviz_192.dot b/test/graphviz/scanned_hard/graphviz_192.dot
new file mode 100644
index 0000000000000000000000000000000000000000..33a5e0d1d9eba0096583fa891e7fb13821e297a4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_192.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=TD
+	N0 [label="Demographic Targeting" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N1 [label="Landing Page Optimization" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N2 [label="Native Advertising" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N3 [label="Visual Design for Ads" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N4 [label="Privacy Concerns in Ads" color="#03A9F4" fillcolor="#B3E5FC" shape=diamond style=filled]
+	N5 [label="Competitor Ad Analysis" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N6 [label="Audience Segmentation for Ads" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N7 [label="Ad Creative Development" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N8 [label="Performance Tracking" color="#FF8A65" fillcolor="#FBE9E7" shape=octagon style=filled]
+	N9 [label="Ad Network Management" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N10 [label="Campaign Planning" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	S0 [label="" color="#E91E63" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#E91E63" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Budget Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label=Geo_Targeting color="#E91E63" fillcolor="#FCE4EC" shape=folder style=filled]
+		nest0_1 [label="Display Advertising" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label="digital advertising" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label="ensures compliance" color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest0_0 [label="tracks performance" color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N0 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N2 [label="targets psychographics" color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N4 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [label="generates responses" color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N8 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_194.dot b/test/graphviz/scanned_hard/graphviz_194.dot
new file mode 100644
index 0000000000000000000000000000000000000000..923262fe107d2c5a276a7e474bd3f7ea8f09509c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_194.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=BT
+	N0 [label="Enterprise Blockchain Solutions" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	N1 [label="Blockchain Node Operation" color="#DCE775" fillcolor="#FCFCE7" shape=hexagon style=filled]
+	N2 [label="Sidechains and Layer 2 Solutions" color="#64B5F6" fillcolor="#E3F2FD" shape=hexagon style=filled]
+	N3 [label="Financial Asset Tokenization" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	N4 [label="Public Blockchain Deployment" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	N5 [label="Digital Identity Management" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	N6 [label="Security Token Offerings" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+	N7 [label="Consensus Mechanism Development" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	S0 [label="" color="#DCE775" fillcolor="#FCFCE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#DCE775" fillcolor="#FCFCE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#64B5F6" fillcolor="#E3F2FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Decentralized Finance Protocols" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Identity Verification on Blockchain" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+		nest0_1 [label="Scalability Solutions" color="#FFC107" fillcolor="#FFECB3" shape=plaintext style=filled]
+		nest0_2 [label="Distributed Ledger Technology" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+		nest0_3 [label="Non_Fungible Token Creation" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label="uses ZKPs" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="ensures compliance" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N4 -> nest0_0 [label="creates bridges" color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N4 [label="builds NFTs" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> S0 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [label="designs protocols" color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> S1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [label="protects IPs" color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N7 [label="processes payments" color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [label="traces provenance" color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	M0 -> N3 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_194.txt b/test/graphviz/scanned_hard/graphviz_194.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f79f1a11f882fc222f7b9244d9f583a826074390
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_194.txt
@@ -0,0 +1,22 @@
+<Blockchain Node Operation, connectedTo, Financial Asset Tokenization>
+<Blockchain Node Operation, connectedTo, Sidechains and Layer 2 Solutions>
+<Blockchain Node Operation, processes payments, Consensus Mechanism Development>
+<Blockchain Node Operation, protects IPs, Security Token Offerings>
+<Digital Identity Management, connectedTo, Security Token Offerings>
+<Distributed Ledger Technology, connectedTo, Non_Fungible Token Creation>
+<Distributed Ledger Technology, partOf, Distributed Ledger Technology>
+<Enterprise Blockchain Solutions, connectedTo, Security Token Offerings>
+<Enterprise Blockchain Solutions, designs protocols, Digital Identity Management>
+<Enterprise Blockchain Solutions, traces provenance, Financial Asset Tokenization>
+<Enterprise Blockchain Solutions, uses ZKPs, Blockchain Node Operation>
+<Financial Asset Tokenization, ensures compliance, Public Blockchain Deployment>
+<Identity Verification on Blockchain, connectedTo, Scalability Solutions>
+<Identity Verification on Blockchain, partOf, Identity Verification on Blockchain>
+<Non_Fungible Token Creation, builds NFTs, Public Blockchain Deployment>
+<Non_Fungible Token Creation, partOf, Non_Fungible Token Creation>
+<Public Blockchain Deployment, connectedTo, Digital Identity Management>
+<Public Blockchain Deployment, creates bridges, Identity Verification on Blockchain>
+<Scalability Solutions, connectedTo, Distributed Ledger Technology>
+<Scalability Solutions, partOf, Scalability Solutions>
+<Security Token Offerings, connectedTo, Consensus Mechanism Development>
+<Sidechains and Layer 2 Solutions, connectedTo, Financial Asset Tokenization>
diff --git a/test/graphviz/scanned_hard/graphviz_195.txt b/test/graphviz/scanned_hard/graphviz_195.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a49186aee277a294e27b6d459b709e40ea04427e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_195.txt
@@ -0,0 +1,19 @@
+<Cross_Chain Bridges, conducts ICOs, Intellectual Property Management>
+<Cross_Chain Bridges, connectedTo, Cryptographic Hashing>
+<Cross_Chain Bridges, governs DAOs, Mining Operations>
+<Cryptographic Hashing, connectedTo, Mining Operations>
+<Cryptographic Hashing, scales systems, Financial Asset Tokenization>
+<Decentralized Applications Development, connectedTo, Interoperability Solutions>
+<Financial Asset Tokenization, connectedTo, Intellectual Property Management>
+<Identity Verification on Blockchain, connectedTo, Cross_Chain Bridges>
+<Identity Verification on Blockchain, connectedTo, Financial Asset Tokenization>
+<Interoperability Solutions, connectedTo, Transaction Verification>
+<Mining Operations, connectedTo, Financial Asset Tokenization>
+<Private Blockchain Implementation, partOf, Private Blockchain Implementation>
+<Private Blockchain Implementation, powers games, Identity Verification on Blockchain>
+<Smart Contract Development, verifies transactions, Voting Systems on Blockchain>
+<Tokenomics Design, connectedTo, Private Blockchain Implementation>
+<Tokenomics Design, partOf, Tokenomics Design>
+<Transaction Verification, optimizes energy, Smart Contract Development>
+<Voting Systems on Blockchain, connectedTo, Identity Verification on Blockchain>
+<Voting Systems on Blockchain, connectedTo, Tokenomics Design>
diff --git a/test/graphviz/scanned_hard/graphviz_196.dot b/test/graphviz/scanned_hard/graphviz_196.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c7982d7f815e80d35958b270e458fd8cd33642b3
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_196.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=RL
+	N0 [label="Cross_chain Swaps" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	N1 [label="Interoperability Solutions" color="#A188D0" fillcolor="#DACBE3" shape=plaintext style=filled]
+	N2 [label=Staking color="#FFCC80" fillcolor="#FFF0CC" shape=Mdiamond style=filled]
+	N3 [label="Blockchain Explorers" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N4 [label="Key Management" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N5 [label="Fraud Prevention" color="#FFCC80" fillcolor="#FFF0CC" shape=Mdiamond style=filled]
+	N6 [label="Cryptocurrency Trading Bots" color="#FFCC80" fillcolor="#FFF0CC" shape=hexagon style=filled]
+	N7 [label="Yield Farming" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N8 [label="Community Building" color="#FFCC80" fillcolor="#FFF0CC" shape=Mdiamond style=filled]
+	N9 [label="Regulatory Compliance" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N10 [label="Portfolio Management" color="#FFF9AE" fillcolor="#FFFCE6" shape=octagon style=filled]
+	N11 [label="Hot Wallet Security" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N12 [label="Blockchain Integration" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N13 [label="Tax Reporting for Crypto" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	S1 [label="" color="#FFCC80" fillcolor="#FFF0CC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#A188D0" fillcolor="#DACBE3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Web3 Integration" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="GameFi Development" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+		nest0_1 [label="Cold Storage Solutions" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label="operates protocols" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label="develops exchanges" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label="designs tokenomics" color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label="ensures compliance" color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [label="lends funds" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [label="lists assets" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N7 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N11 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N8 -> S1 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N13 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [label="prevents fraud" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> M0 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N7 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_198.txt b/test/graphviz/scanned_hard/graphviz_198.txt
new file mode 100644
index 0000000000000000000000000000000000000000..43fbe70fe212f8b7914d5b56ecfb6c23c9d45956
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_198.txt
@@ -0,0 +1,21 @@
+<Airdrop Campaigns, connectedTo, Coin Creation>
+<Airdrop Campaigns, connectedTo, Interoperability Solutions>
+<Cold Storage Solutions, connectedTo, Initial Exchange Offering>
+<Cryptocurrency Education, partOf, Cryptocurrency Education>
+<Cryptocurrency Education, prevents fraud, Security Audits>
+<Cryptocurrency Trading Bots, connectedTo, Cold Storage Solutions>
+<Custodial Services, connectedTo, Venture Capital Funding>
+<Decentralized Exchange Operation, connectedTo, Airdrop Campaigns>
+<Decentralized Exchange Operation, connectedTo, Coin Creation>
+<Decentralized Exchange Operation, connectedTo, Hot Wallet Security>
+<Decentralized Exchange Operation, generates yield, Venture Capital Funding>
+<Hot Wallet Security, connectedTo, Portfolio Management>
+<Initial Exchange Offering, connectedTo, Decentralized Exchange Operation>
+<Interoperability Solutions, analyzes markets, Custodial Services>
+<NFT Marketplace Development, distributes airdrops, Cryptocurrency Education>
+<NFT Marketplace Development, partOf, NFT Marketplace Development>
+<Portfolio Management, connectedTo, Coin Creation>
+<Portfolio Management, connectedTo, NFT Marketplace Development>
+<Security Audits, connectedTo, Coin Creation>
+<Security Audits, partOf, Security Audits>
+<Venture Capital Funding, connectedTo, Hot Wallet Security>
diff --git a/test/graphviz/scanned_hard/graphviz_199.dot b/test/graphviz/scanned_hard/graphviz_199.dot
new file mode 100644
index 0000000000000000000000000000000000000000..dc99d7ac380468de210757b9ca5b763385c55a2c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_199.dot
@@ -0,0 +1,53 @@
+digraph {
+	rankdir=LR
+	N0 [label="Intellectual Property Protection" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N1 [label="Real Estate Crowdfunding" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N2 [label="Email List Building" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N3 [label="Reward Tier Design" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N4 [label="Marketing Strategy" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N5 [label="Community Building" color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+	N6 [label="Investor Verification" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N7 [label="Pitch Deck Preparation" color="#A188D0" fillcolor="#DACBE3" shape=oval style=filled]
+	N8 [label="Escrow Management" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N9 [label="International Crowdfunding" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N10 [label="Manufacturing Planning" color="#FFC085" fillcolor="#FFDAB9" shape=oval style=filled]
+	N11 [label="Video Production for Campaigns" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N12 [label="Platform Fee Management" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	S0 [label="" color="#FFC085" fillcolor="#FFDAB9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFC085" fillcolor="#FFDAB9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#A188D0" fillcolor="#DACBE3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Securities Regulations Adherence" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Product Development Lifecycle" color="#FFC085" fillcolor="#FFDAB9" shape=diamond style=filled]
+		nest0_1 [label="Payment Processing" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+		nest0_2 [label="Post_Campaign Reporting" color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+		nest0_3 [label="Press Outreach" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label="collects donations" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label="plans promotions" color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [label="performs due diligence" color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [label="manages fees" color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [label="vets projects" color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N4 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> S0 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N11 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	N7 -> S1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N10 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N9 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_199.txt b/test/graphviz/scanned_hard/graphviz_199.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b152b424c2df45fc9e7a115876ae1141ad450b40
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_199.txt
@@ -0,0 +1,27 @@
+<Community Building, connectedTo, Investor Verification>
+<Email List Building, connectedTo, International Crowdfunding>
+<Email List Building, connectedTo, Reward Tier Design>
+<Escrow Management, connectedTo, International Crowdfunding>
+<Intellectual Property Protection, connectedTo, Pitch Deck Preparation>
+<Intellectual Property Protection, connectedTo, Real Estate Crowdfunding>
+<Intellectual Property Protection, connectedTo, Video Production for Campaigns>
+<International Crowdfunding, performs due diligence, Manufacturing Planning>
+<Investor Verification, connectedTo, Pitch Deck Preparation>
+<Manufacturing Planning, manages fees, Video Production for Campaigns>
+<Marketing Strategy, connectedTo, Community Building>
+<Marketing Strategy, connectedTo, Product Development Lifecycle>
+<Payment Processing, connectedTo, Post_Campaign Reporting>
+<Payment Processing, partOf, Payment Processing>
+<Pitch Deck Preparation, connectedTo, Escrow Management>
+<Pitch Deck Preparation, connectedTo, Manufacturing Planning>
+<Pitch Deck Preparation, connectedTo, Video Production for Campaigns>
+<Post_Campaign Reporting, connectedTo, Press Outreach>
+<Post_Campaign Reporting, partOf, Post_Campaign Reporting>
+<Press Outreach, connectedTo, Real Estate Crowdfunding>
+<Press Outreach, partOf, Press Outreach>
+<Product Development Lifecycle, connectedTo, Payment Processing>
+<Product Development Lifecycle, partOf, Product Development Lifecycle>
+<Real Estate Crowdfunding, collects donations, Email List Building>
+<Reward Tier Design, connectedTo, International Crowdfunding>
+<Reward Tier Design, plans promotions, Marketing Strategy>
+<Video Production for Campaigns, vets projects, Platform Fee Management>
diff --git a/test/graphviz/scanned_hard/graphviz_2.dot b/test/graphviz/scanned_hard/graphviz_2.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f68653952918dcf34078423f8ea30f6557f35b9c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_2.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Device Implantation" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N1 [label="Patient Intake" color="#E91E63" fillcolor="#FCE4EC" shape=Mdiamond style=filled]
+	N2 [label="Epidemiological Tracking" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	N3 [label="Medical Record Keeping" color="#FFF8A6" fillcolor="#FFFDE0" shape=octagon style=filled]
+	N4 [label="Insurance Claim" color="#FFF8A6" fillcolor="#FFFDE0" shape=plaintext style=filled]
+	N5 [label=Follow_up color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+	N6 [label="Physical Examination" color="#E91E63" fillcolor="#FCE4EC" shape=oval style=filled]
+	N7 [label="Wound Care" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=immunizes color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=records color="#FFF8A6" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=documents color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFF8A6" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#92C79A" dir=forward penwidth=1.5 style=solid]
+	N0 -> N7 [label=responds color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_2.txt b/test/graphviz/scanned_hard/graphviz_2.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4c613897fb0b1080c302fb1950b20fe48d3c49aa
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_2.txt
@@ -0,0 +1,8 @@
+<Device Implantation, connectedTo, Patient Intake>
+<Device Implantation, responds, Wound Care>
+<Epidemiological Tracking, records, Medical Record Keeping>
+<Follow_up, connectedTo, Physical Examination>
+<Insurance Claim, connectedTo, Follow_up>
+<Medical Record Keeping, documents, Insurance Claim>
+<Patient Intake, immunizes, Epidemiological Tracking>
+<Physical Examination, connectedTo, Wound Care>
diff --git a/test/graphviz/scanned_hard/graphviz_200.dot b/test/graphviz/scanned_hard/graphviz_200.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8fafe654dea1ba96d1fa19e286aa1afb0f62dde3
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_200.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=TD
+	N0 [label="Real Estate Crowdfunding" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N1 [label="Goal Setting" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	N2 [label="Intellectual Property Protection" color="#FFCC7A" fillcolor="#FFF6D9" shape=diamond style=filled]
+	N3 [label="Customer Support for Backers" color="#A1887F" fillcolor="#EFEBE9" shape=oval style=filled]
+	N4 [label="Investor Verification" color="#FFCC7A" fillcolor="#FFF6D9" shape=hexagon style=filled]
+	N5 [label="Financial Projection Analysis" color="#A1887F" fillcolor="#EFEBE9" shape=box style=filled]
+	N6 [label="Product Development Lifecycle" color="#FFCC7A" fillcolor="#FFF6D9" shape=plaintext style=filled]
+	N7 [label="Tax Implications of Crowdfunding" color="#FFCC7A" fillcolor="#FFF6D9" shape=octagon style=filled]
+	N8 [label="Payment Processing" color="#A1887F" fillcolor="#EFEBE9" shape=oval style=filled]
+	N9 [label="Fulfillment Planning" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	S0 [label="" color="#FFCC7A" fillcolor="#FFF6D9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#64B5F6" fillcolor="#E3F2FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Press Outreach" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Debt Crowdfunding" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+		nest0_1 [label="Manufacturing Planning" color="#A1887F" fillcolor="#EFEBE9" shape=ellipse style=filled]
+		nest0_2 [label="Social Media Promotion" color="#A1887F" fillcolor="#EFEBE9" shape=plaintext style=filled]
+		nest0_0 -> nest0_1 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label="facilitates international campaigns" color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label="calculates taxes" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label="updates progress" color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [label="manages fees" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N6 [label="sends emails" color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N3 [color="#A1887F" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [label="adheres to regulations" color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> M1 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	M1 -> N6 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N8 -> N6 [label="manages manufacturing" color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_200.txt b/test/graphviz/scanned_hard/graphviz_200.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6625d6aa3db6f5c8618755d52b4042eed2516939
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_200.txt
@@ -0,0 +1,21 @@
+<Customer Support for Backers, connectedTo, Investor Verification>
+<Customer Support for Backers, manages fees, Debt Crowdfunding>
+<Debt Crowdfunding, connectedTo, Manufacturing Planning>
+<Debt Crowdfunding, partOf, Debt Crowdfunding>
+<Financial Projection Analysis, connectedTo, Product Development Lifecycle>
+<Goal Setting, adheres to regulations, Tax Implications of Crowdfunding>
+<Goal Setting, connectedTo, Customer Support for Backers>
+<Goal Setting, connectedTo, Intellectual Property Protection>
+<Goal Setting, connectedTo, Product Development Lifecycle>
+<Intellectual Property Protection, facilitates international campaigns, Customer Support for Backers>
+<Investor Verification, connectedTo, Financial Projection Analysis>
+<Investor Verification, connectedTo, Product Development Lifecycle>
+<Manufacturing Planning, connectedTo, Social Media Promotion>
+<Manufacturing Planning, partOf, Manufacturing Planning>
+<Payment Processing, connectedTo, Fulfillment Planning>
+<Payment Processing, manages manufacturing, Product Development Lifecycle>
+<Product Development Lifecycle, calculates taxes, Tax Implications of Crowdfunding>
+<Real Estate Crowdfunding, connectedTo, Goal Setting>
+<Social Media Promotion, partOf, Social Media Promotion>
+<Social Media Promotion, sends emails, Product Development Lifecycle>
+<Tax Implications of Crowdfunding, updates progress, Payment Processing>
diff --git a/test/graphviz/scanned_hard/graphviz_201.dot b/test/graphviz/scanned_hard/graphviz_201.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2912e8e0eec251d0957bd4db8c35f6e6c7821fb1
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_201.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=TD
+	N0 [label="Investor Verification" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	N1 [label="Backer Communication" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	N2 [label="Manufacturing Planning" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N3 [label="Customer Support for Backers" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N4 [label="Product Development Lifecycle" color="#D3EB9F" fillcolor="#F8FDD3" shape=hexagon style=filled]
+	N5 [label="Platform Fee Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=oval style=filled]
+	N6 [label="Success Fee Structures" color="#EAEFA5" fillcolor="#FDFCEB" shape=octagon style=filled]
+	N7 [label="Fulfillment Planning" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N8 [label="Social Media Promotion" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	N9 [label="Shareholder Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	N10 [label="Reward_Based Crowdfunding" color="#A188DB" fillcolor="#DED7F0" shape=ellipse style=filled]
+	S0 [label="" color="#A188DB" fillcolor="#DED7F0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Escrow Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Post_Campaign Updates" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+		nest0_1 [label="Debt Crowdfunding" color="#A188DB" fillcolor="#DED7F0" shape=diamond style=filled]
+		nest0_0 -> nest0_1 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label="develops products" color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="designs rewards" color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label="produces content" color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label="markets projects" color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label="prepares pitches" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [label="facilitates equity" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest0_0 [label="vets projects" color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N5 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	N3 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N5 [color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N6 [label="manages shareholders" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N10 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N4 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_201.txt b/test/graphviz/scanned_hard/graphviz_201.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8f22c211b9abf38a7c557bb290c0d2a139ecfee6
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_201.txt
@@ -0,0 +1,21 @@
+<Backer Communication, connectedTo, Manufacturing Planning>
+<Backer Communication, connectedTo, Product Development Lifecycle>
+<Customer Support for Backers, connectedTo, Platform Fee Management>
+<Customer Support for Backers, connectedTo, Reward_Based Crowdfunding>
+<Customer Support for Backers, designs rewards, Product Development Lifecycle>
+<Customer Support for Backers, manages shareholders, Success Fee Structures>
+<Debt Crowdfunding, connectedTo, Platform Fee Management>
+<Debt Crowdfunding, partOf, Debt Crowdfunding>
+<Fulfillment Planning, markets projects, Social Media Promotion>
+<Investor Verification, connectedTo, Backer Communication>
+<Investor Verification, connectedTo, Product Development Lifecycle>
+<Manufacturing Planning, connectedTo, Product Development Lifecycle>
+<Manufacturing Planning, develops products, Customer Support for Backers>
+<Platform Fee Management, connectedTo, Success Fee Structures>
+<Post_Campaign Updates, connectedTo, Debt Crowdfunding>
+<Post_Campaign Updates, partOf, Post_Campaign Updates>
+<Product Development Lifecycle, connectedTo, Platform Fee Management>
+<Shareholder Management, facilitates equity, Reward_Based Crowdfunding>
+<Social Media Promotion, prepares pitches, Shareholder Management>
+<Success Fee Structures, produces content, Fulfillment Planning>
+<Success Fee Structures, vets projects, Post_Campaign Updates>
diff --git a/test/graphviz/scanned_hard/graphviz_202.txt b/test/graphviz/scanned_hard/graphviz_202.txt
new file mode 100644
index 0000000000000000000000000000000000000000..382496271486db4b0314607419cc296c5d6780a4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_202.txt
@@ -0,0 +1,18 @@
+<Agricultural IoT, manages energy grids, IoT Device Certification>
+<Cloud Platform Integration, connectedTo, Predictive Maintenance>
+<Cloud Platform Integration, partOf, Cloud Platform Integration>
+<IoT Device Certification, connectedTo, Cloud Platform Integration>
+<IoT Device Certification, connectedTo, Network Protocol Selection>
+<IoT Device Certification, connectedTo, Smart City Sensors>
+<IoT Device Certification, prototypes devices, Wearable Technology>
+<Network Protocol Selection, connectedTo, Smart City Sensors>
+<Predictive Maintenance, connectedTo, Agricultural IoT>
+<Predictive Maintenance, connectedTo, Security Implementation>
+<Predictive Maintenance, partOf, Predictive Maintenance>
+<Security Implementation, connectedTo, Supply Chain Optimization>
+<Security Implementation, partOf, Security Implementation>
+<Smart City Sensors, manufactures devices, Wearable Technology>
+<Supply Chain Optimization, connectedTo, Cloud Platform Integration>
+<Supply Chain Optimization, controls devices, Smart City Sensors>
+<Supply Chain Optimization, partOf, Supply Chain Optimization>
+<Wearable Technology, monitors environment, Smart Manufacturing>
diff --git a/test/graphviz/scanned_hard/graphviz_204.dot b/test/graphviz/scanned_hard/graphviz_204.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0c48ec860e86d727b71d43922ad8c3f7fae1c04d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_204.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=BT
+	N0 [label="Supply Chain Optimization" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+	N1 [label="Connectivity Management" color="#FFE69C" fillcolor="#FFF9D4" shape=diamond style=filled]
+	N2 [label="Data Collection" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	N3 [label="Predictive Maintenance" color="#9575CD" fillcolor="#EDE7F6" shape=folder style=filled]
+	N4 [label="Blockchain for IoT Security" color="#FFE69C" fillcolor="#FFF9D4" shape=parallelogram style=filled]
+	N5 [label="Power Management for Devices" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N6 [label="Transportation IoT" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+	N7 [label="Sensor Integration" color="#9575CD" fillcolor="#EDE7F6" shape=plaintext style=filled]
+	N8 [label="Wearable Technology" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N9 [label="Smart Home Devices" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+	N10 [label="Real_time Data Streaming" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N11 [label="Over_the_Air Updates" color="#BCB88A" fillcolor="#F5F5DC" shape=octagon style=filled]
+	N12 [label="User Interface for IoT Apps" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N13 [label="Retail IoT" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	S1 [label="" color="#9575CD" fillcolor="#EDE7F6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#BCB88A" fillcolor="#F5F5DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Environmental Monitoring" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Industrial IoT" color="#FFE69C" fillcolor="#FFF9D4" shape=diamond style=filled]
+		nest0_1 [label="API Development for IoT" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+		nest0_2 [label="AI at the Edge" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label="complies with regulations" color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [label="enhances agriculture" color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [label="ensures interoperability" color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N11 -> nest0_0 [color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N11 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N1 -> S1 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N4 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [label="manages deployments" color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [label="designs UIs" color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [label="monitors environment" color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N4 [color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_205.dot b/test/graphviz/scanned_hard/graphviz_205.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b58424fea3ad8bdf939f2d9f40038a4004f2cffd
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_205.dot
@@ -0,0 +1,53 @@
+digraph {
+	rankdir=RL
+	N0 [label="Edge Application Development" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	N1 [label="Data Filtering at Edge" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	N2 [label="Containerization at Edge" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N3 [label="Edge Device Provisioning" color="#DCE775" fillcolor="#FCFCE7" shape=octagon style=filled]
+	N4 [label="Industrial Edge Computing" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N5 [label="Orchestration of Edge Workloads" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N6 [label="Virtualization at Edge" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N7 [label="Latency Reduction" color="#DCE775" fillcolor="#FCFCE7" shape=octagon style=filled]
+	N8 [label="Edge Network Topology Design" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N9 [label="Edge Device Analytics" color="#C0CA33" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N10 [label="Security for Edge Devices" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N11 [label="Edge_to_Cloud Data Transfer Optimization" color="#C0CA33" fillcolor="#F9FBE7" shape=box style=filled]
+	N12 [label="Compliance and Governance at Edge" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	N13 [label="Telecom Edge Computing" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	S0 [label="" color="#FFCC7A" fillcolor="#FFF6D9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#DCE775" fillcolor="#FCFCE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFCC7A" fillcolor="#FFF6D9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Smart City Edge Solutions" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Edge Computing Hardware Selection" color="#C0CA33" fillcolor="#F9FBE7" shape=Mdiamond style=filled]
+		nest0_1 [label="Event_Driven Architectures at Edge" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+		nest0_2 [label="Edge AI Model Deployment" color="#FFCC7A" fillcolor="#FFF6D9" shape=Mdiamond style=filled]
+		nest0_0 -> nest0_1 [label="processes events" color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#C0CA33" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label="connects endpoints" color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [label="manages power consumption" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N7 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N9 [label="provides fault tolerance" color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N10 -> S0 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N13 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	S0 -> N12 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [label="supports industrial IoT" color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [label="analyzes data at edge" color="#C0CA33" dir=forward penwidth=1.5 style=solid]
+	M0 -> N7 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [color="#C0CA33" dir=forward penwidth=1.5 style=solid]
+	N11 -> M1 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N13 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_206.dot b/test/graphviz/scanned_hard/graphviz_206.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b2be4678d36cd58715a130127a62721b1be0491d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_206.dot
@@ -0,0 +1,40 @@
+digraph {
+	rankdir=RL
+	N0 [label="Edge_to_Cloud Data Transfer Optimization" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	N1 [label="Edge Application Development" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N2 [label="Fleet Management for Edge Devices" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	N3 [label="Data Synchronization between Edge and Cloud" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N4 [label="Containerization at Edge" color="#F7BEE0" fillcolor="#FAEBF3" shape=Mdiamond style=filled]
+	N5 [label="Bandwidth Optimization" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	N6 [label="Healthcare Edge Computing" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N7 [label="Virtualization at Edge" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	S0 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Edge Device Provisioning" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Edge API Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=box style=filled]
+		nest0_1 [label="Remote Device Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+		nest0_2 [label="Edge Data Processing" color="#EAEFA5" fillcolor="#FDFCEB" shape=oval style=filled]
+		nest0_3 [label="Fault Tolerance at Edge" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [label="synchronizes data" color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#CFCFCF" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label="provides fault tolerance" color="#CFCFCF" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest0_0 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N4 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N0 -> S0 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [label="deploys nodes" color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	S0 -> N3 [label="analyzes data at edge" color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N0 -> S1 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	S1 -> N2 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N6 -> N1 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_206.txt b/test/graphviz/scanned_hard/graphviz_206.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0683eda25b9f7ccfdba7d3625867fca85f0c3b2d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_206.txt
@@ -0,0 +1,21 @@
+<Bandwidth Optimization, provides fault tolerance, Healthcare Edge Computing>
+<Containerization at Edge, connectedTo, Bandwidth Optimization>
+<Data Synchronization between Edge and Cloud, connectedTo, Containerization at Edge>
+<Data Synchronization between Edge and Cloud, connectedTo, Edge API Management>
+<Edge API Management, connectedTo, Remote Device Management>
+<Edge API Management, partOf, Edge API Management>
+<Edge Application Development, connectedTo, Fleet Management for Edge Devices>
+<Edge Data Processing, connectedTo, Fault Tolerance at Edge>
+<Edge Data Processing, partOf, Edge Data Processing>
+<Edge_to_Cloud Data Transfer Optimization, analyzes data at edge, Data Synchronization between Edge and Cloud>
+<Edge_to_Cloud Data Transfer Optimization, connectedTo, Edge Application Development>
+<Edge_to_Cloud Data Transfer Optimization, connectedTo, Fleet Management for Edge Devices>
+<Edge_to_Cloud Data Transfer Optimization, connectedTo, Healthcare Edge Computing>
+<Edge_to_Cloud Data Transfer Optimization, deploys nodes, Bandwidth Optimization>
+<Fault Tolerance at Edge, connectedTo, Containerization at Edge>
+<Fault Tolerance at Edge, partOf, Fault Tolerance at Edge>
+<Fleet Management for Edge Devices, connectedTo, Data Synchronization between Edge and Cloud>
+<Healthcare Edge Computing, connectedTo, Edge Application Development>
+<Healthcare Edge Computing, connectedTo, Virtualization at Edge>
+<Remote Device Management, partOf, Remote Device Management>
+<Remote Device Management, synchronizes data, Edge Data Processing>
diff --git a/test/graphviz/scanned_hard/graphviz_208.dot b/test/graphviz/scanned_hard/graphviz_208.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c661ffdcd30bdbf60eb55df31a81ff0cd8752999
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_208.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=TD
+	N0 [label="API Management in Cloud" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	N1 [label="Cloud Monitoring and Logging" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	N2 [label="Cost Optimization in Cloud" color="#673AB7" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N3 [label="Cloud Firewall Configuration" color="#CFCFCF" fillcolor="#F6F6F6" shape=Mdiamond style=filled]
+	N4 [label="Serverless Computing" color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N5 [label="Cloud Marketplace Integration" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	N6 [label="Hybrid Cloud Deployment" color="#CFCFCF" fillcolor="#F6F6F6" shape=box style=filled]
+	N7 [label="Infrastructure as a Service" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+	N8 [label="Identity and Access Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=box style=filled]
+	N9 [label="Virtual Machine Management" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N10 [label="Cloud Backup Solutions" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	N11 [label="CI or CD Pipelines in Cloud" color="#673AB7" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N12 [label="Compliance in Cloud" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	S0 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#673AB7" fillcolor="#D1C4E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Private Cloud Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Public Cloud Management" color="#673AB7" fillcolor="#D1C4E9" shape=hexagon style=filled]
+		nest0_1 [label="Cloud_based VPN Setup" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [label="manages load balancing" color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label="offers DBaaS" color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label="avoids lock_ins" color="#CFCFCF" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest0_0 [label="architects solutions" color="#CFCFCF" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N0 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N5 [label="ensures governance" color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [label="automates tasks" color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [label="implements DevOps" color="#CFCFCF" dir=forward penwidth=1.5 style=dashed]
+	N10 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> M0 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	M0 -> N12 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_208.txt b/test/graphviz/scanned_hard/graphviz_208.txt
new file mode 100644
index 0000000000000000000000000000000000000000..798aa25b05e40a1ced13f3330ed10c67bd670d92
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_208.txt
@@ -0,0 +1,22 @@
+<API Management in Cloud, automates tasks, Identity and Access Management>
+<API Management in Cloud, connectedTo, Cloud Monitoring and Logging>
+<API Management in Cloud, ensures governance, Cloud Marketplace Integration>
+<API Management in Cloud, implements DevOps, Infrastructure as a Service>
+<CI or CD Pipelines in Cloud, connectedTo, Compliance in Cloud>
+<Cloud Backup Solutions, connectedTo, CI or CD Pipelines in Cloud>
+<Cloud Backup Solutions, connectedTo, Compliance in Cloud>
+<Cloud Firewall Configuration, architects solutions, Public Cloud Management>
+<Cloud Firewall Configuration, connectedTo, Serverless Computing>
+<Cloud Marketplace Integration, connectedTo, Hybrid Cloud Deployment>
+<Cloud Monitoring and Logging, connectedTo, Cost Optimization in Cloud>
+<Cloud_based VPN Setup, connectedTo, CI or CD Pipelines in Cloud>
+<Cloud_based VPN Setup, partOf, Cloud_based VPN Setup>
+<Cost Optimization in Cloud, connectedTo, Cloud Firewall Configuration>
+<Hybrid Cloud Deployment, avoids lock_ins, Infrastructure as a Service>
+<Identity and Access Management, connectedTo, Compliance in Cloud>
+<Identity and Access Management, connectedTo, Virtual Machine Management>
+<Infrastructure as a Service, connectedTo, Identity and Access Management>
+<Public Cloud Management, manages load balancing, Cloud_based VPN Setup>
+<Public Cloud Management, partOf, Public Cloud Management>
+<Serverless Computing, offers DBaaS, Cloud Marketplace Integration>
+<Virtual Machine Management, connectedTo, Cloud Backup Solutions>
diff --git a/test/graphviz/scanned_hard/graphviz_209.txt b/test/graphviz/scanned_hard/graphviz_209.txt
new file mode 100644
index 0000000000000000000000000000000000000000..febe2bed144c46358191a17da28828af174359fb
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_209.txt
@@ -0,0 +1,23 @@
+<Auto_Scaling Configurations, connectedTo, Infrastructure as a Service>
+<CI or CD Pipelines in Cloud, ensures governance, Cloud Backup Solutions>
+<Cloud Automation, connectedTo, CI or CD Pipelines in Cloud>
+<Cloud Automation, connectedTo, Cloud Backup Solutions>
+<Cloud Automation, connectedTo, DevOps on Cloud>
+<Cloud Backup Solutions, connectedTo, Cloud Monitoring and Logging>
+<Cloud FinOps, connectedTo, Database as a Service>
+<Cloud FinOps, partOf, Cloud FinOps>
+<Cloud Marketplace Integration, connectedTo, Cloud Automation>
+<Cloud Marketplace Integration, manages IAMs, CI or CD Pipelines in Cloud>
+<Cloud Monitoring and Logging, connectedTo, Disaster Recovery in Cloud>
+<Data Storage in Cloud, configures networks, Auto_Scaling Configurations>
+<Database as a Service, connectedTo, Cloud Monitoring and Logging>
+<Database as a Service, partOf, Database as a Service>
+<DevOps on Cloud, connectedTo, Platform as a Service>
+<Disaster Recovery in Cloud, connectedTo, DevOps on Cloud>
+<Hybrid Cloud Deployment, connectedTo, Cloud Marketplace Integration>
+<Hybrid Cloud Deployment, provides IaaS, CI or CD Pipelines in Cloud>
+<Infrastructure as a Service, connectedTo, Cost Optimization in Cloud>
+<Platform as a Service, connectedTo, Auto_Scaling Configurations>
+<Platform as a Service, connectedTo, Data Storage in Cloud>
+<Platform as a Service, implements DR, Cloud FinOps>
+<Platform as a Service, stores data, Infrastructure as a Service>
diff --git a/test/graphviz/scanned_hard/graphviz_21.dot b/test/graphviz/scanned_hard/graphviz_21.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c440307352874098a33efb949f6e698b6f00d181
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_21.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=BT
+	N0 [label="Third_Party Administrator Liaison" color="#26A69A" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N1 [label=Underwriting color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N2 [label="Reinsurance Negotiation" color="#94C0C0" fillcolor="#CADEDE" shape=parallelogram style=filled]
+	N3 [label="Claim Submission" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N4 [label="Policy Issuance" color="#94C0C0" fillcolor="#CADEDE" shape=folder style=filled]
+	N5 [label="Broker Management" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N6 [label="Property Damage Assessment" color="#26A69A" fillcolor="#E0F2F1" shape=octagon style=filled]
+	N7 [label=Subrogation color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N8 [label="Customer Communication" color="#B8C0F5" fillcolor="#ECF0FD" shape=hexagon style=filled]
+	N9 [label="Claim Adjustment" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N0 -> N1 [label=mitigates color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=prevents color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=policies color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=manages color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N7 [label=renews color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_210.txt b/test/graphviz/scanned_hard/graphviz_210.txt
new file mode 100644
index 0000000000000000000000000000000000000000..07d5b0c4fffaf3ac67c27095a13a856f25969612
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_210.txt
@@ -0,0 +1,22 @@
+<CI or CD Pipelines in Cloud, connectedTo, Cloud Architecture Design>
+<CI or CD Pipelines in Cloud, connectedTo, Cloud Monitoring and Logging>
+<Cloud Architecture Design, performs backups, Load Balancing in Cloud>
+<Cloud Backup Solutions, integrates edge, Hybrid Cloud Deployment>
+<Cloud Backup Solutions, partOf, Cloud Backup Solutions>
+<Cloud Governance, connectedTo, Compliance in Cloud>
+<Cloud Marketplace Integration, connectedTo, Cloud Governance>
+<Cloud Monitoring and Logging, connectedTo, Cloud Architecture Design>
+<Cloud Monitoring and Logging, connectedTo, Cloud Vendor Lock_in Mitigation>
+<Cloud Monitoring and Logging, connectedTo, Load Balancing in Cloud>
+<Cloud Vendor Lock_in Mitigation, manages load balancing, CI or CD Pipelines in Cloud>
+<Compliance in Cloud, automates CI or CD, Edge_to_Cloud Integration>
+<Cost Optimization in Cloud, connectedTo, Cloud Marketplace Integration>
+<DevOps on Cloud, connectedTo, Cloud Monitoring and Logging>
+<DevOps on Cloud, partOf, DevOps on Cloud>
+<Disaster Recovery in Cloud, tags resources, Cloud Monitoring and Logging>
+<Edge_to_Cloud Integration, implements FinOps, Serverless Computing>
+<Hybrid Cloud Deployment, connectedTo, DevOps on Cloud>
+<Hybrid Cloud Deployment, partOf, Hybrid Cloud Deployment>
+<Resource Tagging for Cost Allocation, connectedTo, Cloud Backup Solutions>
+<Resource Tagging for Cost Allocation, connectedTo, Disaster Recovery in Cloud>
+<Serverless Computing, connectedTo, Resource Tagging for Cost Allocation>
diff --git a/test/graphviz/scanned_hard/graphviz_211.dot b/test/graphviz/scanned_hard/graphviz_211.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f234aed427eacd247c6f8cf1842a38893d50f0a7
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_211.dot
@@ -0,0 +1,37 @@
+digraph {
+	rankdir=TD
+	N0 [label="Hardware Maintenance" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	N1 [label="Virtual Desktop Infrastructure" color="#FFEB3B" fillcolor="#FFF9C4" shape=oval style=filled]
+	N2 [label="User Account Management" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N3 [label="Remote Access Solutions" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N4 [label=Virtualization color="#7986CB" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N5 [label="Network Design" color="#FFEB3B" fillcolor="#FFF9C4" shape=parallelogram style=filled]
+	N6 [label="Storage Solutions" color="#92C79A" fillcolor="#E8F0EA" shape=Mdiamond style=filled]
+	N7 [label="Disaster Recovery Planning" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	S0 [label="" color="#FFEB3B" fillcolor="#FFF9C4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFEB3B" fillcolor="#FFF9C4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Firewall Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Hardware Procurement" color="#92C79A" fillcolor="#E8F0EA" shape=box style=filled]
+		nest0_1 [label="Network Security" color="#92C79A" fillcolor="#E8F0EA" shape=folder style=filled]
+		nest0_2 [label="Backup and Recovery Systems" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [label="procures equipment" color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label="virtualizes resources" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest0_0 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> S0 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N6 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N4 -> S1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N7 [label="configures web servers" color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_211.txt b/test/graphviz/scanned_hard/graphviz_211.txt
new file mode 100644
index 0000000000000000000000000000000000000000..949472c1d8ae03122fe10e3dc49cce04782f4447
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_211.txt
@@ -0,0 +1,18 @@
+<Backup and Recovery Systems, connectedTo, Disaster Recovery Planning>
+<Backup and Recovery Systems, partOf, Backup and Recovery Systems>
+<Hardware Maintenance, connectedTo, Virtual Desktop Infrastructure>
+<Hardware Procurement, connectedTo, Network Security>
+<Hardware Procurement, partOf, Hardware Procurement>
+<Network Design, connectedTo, Hardware Procurement>
+<Network Design, connectedTo, Storage Solutions>
+<Network Security, partOf, Network Security>
+<Network Security, procures equipment, Backup and Recovery Systems>
+<Remote Access Solutions, connectedTo, Disaster Recovery Planning>
+<Remote Access Solutions, connectedTo, Storage Solutions>
+<Remote Access Solutions, connectedTo, Virtualization>
+<Storage Solutions, connectedTo, Disaster Recovery Planning>
+<User Account Management, connectedTo, Remote Access Solutions>
+<Virtual Desktop Infrastructure, connectedTo, User Account Management>
+<Virtualization, configures web servers, Disaster Recovery Planning>
+<Virtualization, connectedTo, Storage Solutions>
+<Virtualization, virtualizes resources, Network Design>
diff --git a/test/graphviz/scanned_hard/graphviz_212.txt b/test/graphviz/scanned_hard/graphviz_212.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f0b2a92257c2f21511729a90b810a89728df498d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_212.txt
@@ -0,0 +1,16 @@
+<Access Control Systems, connectedTo, Group Policy Management>
+<Access Control Systems, partOf, Access Control Systems>
+<DNS Management, automates tasks, Software Licensing Management>
+<DNS Management, connectedTo, IT Asset Management>
+<DNS Management, connectedTo, Troubleshooting and Support>
+<Directory Services, connectedTo, Network Security>
+<Group Policy Management, manages storage, Directory Services>
+<Group Policy Management, partOf, Group Policy Management>
+<IT Asset Management, connectedTo, Directory Services>
+<IT Asset Management, connectedTo, Troubleshooting and Support>
+<IT Asset Management, manages users, Network Design>
+<Network Design, monitors performance, DNS Management>
+<Proxy Server Configuration, connectedTo, IT Asset Management>
+<Software Licensing Management, connectedTo, Access Control Systems>
+<Software Licensing Management, partOf, Software Licensing Management>
+<Troubleshooting and Support, connectedTo, Directory Services>
diff --git a/test/graphviz/scanned_hard/graphviz_213.dot b/test/graphviz/scanned_hard/graphviz_213.dot
new file mode 100644
index 0000000000000000000000000000000000000000..34f93761606fcb2dc3ea84a937105ea307b487b5
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_213.dot
@@ -0,0 +1,39 @@
+digraph {
+	rankdir=RL
+	N0 [label="Automation Scripting" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N1 [label="Monitoring and Alerting" color="#94C0C0" fillcolor="#CADEDE" shape=plaintext style=filled]
+	N2 [label="Server Deployment" color="#5C6BC0" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N3 [label="Network Design" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N4 [label=Virtualization color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	N5 [label="Web Server Configuration" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N6 [label="Remote Access Solutions" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N7 [label="Patch Management" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N8 [label="VPN Configuration" color="#2196F3" fillcolor="#BBDEFB" shape=ellipse style=filled]
+	S0 [label="" color="#2196F3" fillcolor="#BBDEFB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#2196F3" fillcolor="#BBDEFB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Cabling and Wiring" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Backup and Recovery Systems" color="#5C6BC0" fillcolor="#E8EAF6" shape=octagon style=filled]
+		nest0_1 [label="Hardware Procurement" color="#5C6BC0" fillcolor="#E8EAF6" shape=octagon style=filled]
+		nest0_2 [label="Network Performance Tuning" color="#94C0C0" fillcolor="#CADEDE" shape=plaintext style=filled]
+		nest0_0 -> nest0_1 [color="#2196F3" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#2196F3" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label="installs software" color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label="virtualizes resources" color="#2196F3" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest0_0 [color="#2196F3" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N1 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S0 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	S0 -> N5 [label="plans capacity" color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [label="applies patches" color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N5 -> M0 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [label="manages remote access" color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N8 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_215.dot b/test/graphviz/scanned_hard/graphviz_215.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ee2a10717789d05bd8f48dd2a80233c048fed56c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_215.dot
@@ -0,0 +1,49 @@
+digraph {
+	rankdir=TD
+	N0 [label="Immutable Infrastructure" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N1 [label="Canary Releases" color="#AB47BC" fillcolor="#F3E5F5" shape=Mdiamond style=filled]
+	N2 [label="Cross_Functional Team Collaboration" color="#00BCD4" fillcolor="#E0F7FA" shape=octagon style=filled]
+	N3 [label="Container Orchestration" color="#AB47BC" fillcolor="#F3E5F5" shape=oval style=filled]
+	N4 [label="Code Quality Checks" color="#AB47BC" fillcolor="#F3E5F5" shape=plaintext style=filled]
+	N5 [label="Microservices Architecture" color="#AB47BC" fillcolor="#F3E5F5" shape=Mdiamond style=filled]
+	N6 [label="Feedback Loops" color="#D2D2D2" fillcolor="#F0F0F0" shape=folder style=filled]
+	N7 [label="Configuration Management" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N8 [label=Containerization color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N9 [label="Release Management" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N10 [label="Collaboration Tools" color="#00BCD4" fillcolor="#E0F7FA" shape=Mdiamond style=filled]
+	N11 [label="Blue_Green Deployments" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N12 [label="Automated Deployment" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N13 [label="Infrastructure Provisioning" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+	N14 [label=GitOps color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	S0 [label="" color="#D2D2D2" fillcolor="#F0F0F0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Continuous Integration" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Cloud Native Development" color="#D2D2D2" fillcolor="#F0F0F0" shape=plaintext style=filled]
+		nest0_1 [label="Observability Implementation" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+		nest0_2 [label="Environment Management" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [label="secures secrets" color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label="ensures observability" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label="manages immutable infrastructure" color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label="collects metrics" color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label="enables ChatOps" color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [label="implements blue_green" color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest0_0 [label="fosters collaboration" color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N3 [label="configures environments" color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N5 -> S0 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N10 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	S0 -> N12 [label="integrates security" color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N13 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N14 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_216.dot b/test/graphviz/scanned_hard/graphviz_216.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4eec795d8fc171eba7383bbd18a266516015c7be
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_216.dot
@@ -0,0 +1,33 @@
+digraph {
+	rankdir=BT
+	N0 [label="Environment Management" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N1 [label="Version Control" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N2 [label="Feature Flags" color="#92C79A" fillcolor="#E8F0EA" shape=box style=filled]
+	N3 [label="Canary Releases" color="#FFF9AE" fillcolor="#FFFCE6" shape=parallelogram style=filled]
+	N4 [label="Performance Metrics Analysis" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N5 [label="Pipeline Automation" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N6 [label="Infrastructure as Code" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	S1 [label="" color="#FFF9AE" fillcolor="#FFFCE6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Serverless Deployment" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Code Quality Checks" color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+		nest0_1 [label="Infrastructure Provisioning" color="#FFF9AE" fillcolor="#FFFCE6" shape=hexagon style=filled]
+		nest0_2 [label="Chaos Engineering" color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label="runs DAST" color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label="conducts post_mortems" color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest0_0 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N3 [label="manages feature flags" color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N0 -> S1 [color="#92C79A" dir=forward penwidth=1.5 style=solid]
+	S1 -> N2 [label="orchestrates containers" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N5 [label="automates operations" color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_216.txt b/test/graphviz/scanned_hard/graphviz_216.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c9136b041def125d3f8746e754bc6703deeb9ad8
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_216.txt
@@ -0,0 +1,17 @@
+<Canary Releases, connectedTo, Code Quality Checks>
+<Canary Releases, connectedTo, Performance Metrics Analysis>
+<Chaos Engineering, manages feature flags, Canary Releases>
+<Chaos Engineering, partOf, Chaos Engineering>
+<Code Quality Checks, connectedTo, Infrastructure Provisioning>
+<Code Quality Checks, partOf, Code Quality Checks>
+<Environment Management, automates operations, Pipeline Automation>
+<Environment Management, connectedTo, Infrastructure as Code>
+<Environment Management, orchestrates containers, Feature Flags>
+<Environment Management, runs DAST, Version Control>
+<Feature Flags, conducts post_mortems, Canary Releases>
+<Infrastructure Provisioning, connectedTo, Chaos Engineering>
+<Infrastructure Provisioning, partOf, Infrastructure Provisioning>
+<Performance Metrics Analysis, connectedTo, Pipeline Automation>
+<Pipeline Automation, connectedTo, Infrastructure as Code>
+<Version Control, connectedTo, Code Quality Checks>
+<Version Control, connectedTo, Feature Flags>
diff --git a/test/graphviz/scanned_hard/graphviz_217.txt b/test/graphviz/scanned_hard/graphviz_217.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8467f451d7466c605a861fd3193626a20eb26d8c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_217.txt
@@ -0,0 +1,20 @@
+<Continuous Delivery, connectedTo, Cloud_Native Development>
+<Continuous Delivery, connectedTo, System Design>
+<Continuous Integration, connectedTo, Desktop Application Development>
+<Continuous Integration, manages data structures, Version Control>
+<Desktop Application Development, connectedTo, Integration Testing>
+<Desktop Application Development, partOf, Desktop Application Development>
+<Integration Testing, connectedTo, Operating System Development>
+<Integration Testing, partOf, Integration Testing>
+<Mobile Application Development, designs APIs, Cloud_Native Development>
+<Operating System Development, connectedTo, Cloud_Native Development>
+<Operating System Development, partOf, Operating System Development>
+<Security Hardening, connectedTo, Continuous Integration>
+<Security Hardening, connectedTo, Mobile Application Development>
+<Security Hardening, connectedTo, System Design>
+<Security Hardening, manages databases, Cloud_Native Development>
+<System Design, implements security, Mobile Application Development>
+<Version Control, builds backends, Mobile Application Development>
+<Version Control, connectedTo, Cloud_Native Development>
+<Version Control, connectedTo, Continuous Delivery>
+<Version Control, connectedTo, System Design>
diff --git a/test/graphviz/scanned_hard/graphviz_218.dot b/test/graphviz/scanned_hard/graphviz_218.dot
new file mode 100644
index 0000000000000000000000000000000000000000..02d86c59191b1148e9031802a91b0a01ac3fae1c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_218.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=LR
+	N0 [label="User Interface Design" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N1 [label=Coding color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N2 [label="Scalability Design" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N3 [label="Frontend Development" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N4 [label="Mobile Application Development" color="#61CAC3" fillcolor="#C2E8E6" shape=diamond style=filled]
+	N5 [label=Documentation color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N6 [label="Security Hardening" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+	N7 [label=Deployment color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N8 [label="Cloud_Native Development" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N9 [label="API Development" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N10 [label="Integration Testing" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	S0 [label="" color="#64B5F6" fillcolor="#E3F2FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFC2C2" fillcolor="#FFEBEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Architecture Planning" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Requirements Gathering" color="#61CAC3" fillcolor="#C2E8E6" shape=plaintext style=filled]
+		nest0_1 [label=Containerization color="#FFC2C2" fillcolor="#FFEBEB" shape=oval style=filled]
+		nest0_2 [label="Algorithm Design" color="#FFC2C2" fillcolor="#FFEBEB" shape=Mdiamond style=filled]
+		nest0_0 -> nest0_1 [label="implements CI" color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [label="writes unit tests" color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [label="builds microservices" color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label="designs algorithms" color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label="codes features" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N9 -> nest0_0 [label="gathers requirements" color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N6 [label="integrates modules" color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N5 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N7 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [label="develops embedded systems" color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	M0 -> N3 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_219.dot b/test/graphviz/scanned_hard/graphviz_219.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fffc93e1e83c64ae55479950934b74a65deea8f0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_219.dot
@@ -0,0 +1,39 @@
+digraph {
+	rankdir=RL
+	N0 [label="Integration Testing" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N1 [label="Game Development" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+	N2 [label=Containerization color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N3 [label="Web Application Development" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N4 [label="API Development" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	N5 [label="Microservices Architecture" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N6 [label="Data Structures Implementation" color="#FFCC7A" fillcolor="#FFF6D9" shape=plaintext style=filled]
+	N7 [label="Cloud_Native Development" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	S1 [label="" color="#FFCC7A" fillcolor="#FFF6D9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFCC7A" fillcolor="#FFF6D9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFCC7A" fillcolor="#FFF6D9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Requirements Gathering" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label=Refactoring color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+		nest0_1 [label="Architecture Planning" color="#FFCC7A" fillcolor="#FFF6D9" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [label="deploys applications" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label="writes documentation" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label="uses frameworks" color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label="tests systems" color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N6 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N0 -> S1 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	S1 -> N3 [label="fixes bugs" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N3 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [label="develops web apps" color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [label="integrates modules" color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N4 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_22.dot b/test/graphviz/scanned_hard/graphviz_22.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e5e2250dfc90f620f463cee2c72f3d681aff579f
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_22.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=LR
+	N0 [label="Access Control" color="#388E3C" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N1 [label="Threat Intelligence Gathering" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N2 [label="Vulnerability Assessment" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N3 [label="Digital Forensics" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N4 [label="Dark Web Monitoring" color="#FF8A65" fillcolor="#FBE9E7" shape=diamond style=filled]
+	N5 [label="Phishing Simulation" color="#388E3C" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+	N6 [label="Security Awareness Training" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N7 [label="Threat Detection" color="#FF8A65" fillcolor="#FBE9E7" shape=parallelogram style=filled]
+	N8 [label="Identity Management" color="#FF8A65" fillcolor="#FBE9E7" shape=octagon style=filled]
+	N9 [label="Compliance Monitoring" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N0 -> N1 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=audits color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=governs color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=isolates color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=responds color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N6 -> N9 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_220.dot b/test/graphviz/scanned_hard/graphviz_220.dot
new file mode 100644
index 0000000000000000000000000000000000000000..87a4ca2d59471453f336f31e3c567cb575bb28bf
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_220.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=TD
+	N0 [label="Microcontroller Programming" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N1 [label="PCB Layout" color="#FFE69C" fillcolor="#FFF9D4" shape=hexagon style=filled]
+	N2 [label=Prototyping color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	N3 [label="Circuit Design" color="#FFDA4E" fillcolor="#FFE88D" shape=hexagon style=filled]
+	N4 [label="Assembly Line Optimization" color="#FFDA4E" fillcolor="#FFE88D" shape=hexagon style=filled]
+	N5 [label="High_Speed Digital Design" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N6 [label="Power Management Design" color="#B0C5CD" fillcolor="#DFE7EB" shape=hexagon style=filled]
+	N7 [label="Optical Module Design" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N8 [label="Testing and Validation" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N9 [label="Mechanical Design Integration" color="#FFE69C" fillcolor="#FFF9D4" shape=parallelogram style=filled]
+	N10 [label="Power Integrity Analysis" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	S0 [label="" color="#FFE69C" fillcolor="#FFF9D4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Environmental Testing" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Intellectual Property Protection" color="#FFDA4E" fillcolor="#FFE88D" shape=plaintext style=filled]
+		nest0_1 [label="Troubleshooting and Debugging" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+		nest0_2 [label=Documentation color="#FFE69C" fillcolor="#FFF9D4" shape=plaintext style=filled]
+		nest0_0 -> nest0_1 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#B0C5CD" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="designs mixed_signal" color="#B0C5CD" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label="designs fixtures" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label="manages EMC" color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#B0C5CD" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest0_0 [label="designs circuits" color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> S0 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N10 [label="analyzes failures" color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_221.txt b/test/graphviz/scanned_hard/graphviz_221.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4b1ad0a72f0ded5920cf52c3e3e9dbf445d61002
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_221.txt
@@ -0,0 +1,25 @@
+<ASIC Design, connectedTo, Low_Power Design>
+<Assembly Line Optimization, tests environmental resilience, Circuit Design>
+<Circuit Design, analyzes thermals, Cost Optimization>
+<Circuit Design, connectedTo, Low_Power Design>
+<Cost Optimization, designs fixtures, Schematic Capture>
+<Documentation, connectedTo, Power Management Design>
+<Environmental Testing, connectedTo, High_Speed Digital Design>
+<Firmware Development, connectedTo, Documentation>
+<High_Speed Digital Design, troubleshoots issues, Power Integrity Analysis>
+<Low_Power Design, connectedTo, Environmental Testing>
+<Mechanical Design Integration, connectedTo, Quality Control>
+<Mechanical Design Integration, creates documentation, Environmental Testing>
+<Mechanical Design Integration, partOf, Mechanical Design Integration>
+<Power Integrity Analysis, connectedTo, Quality Control>
+<Power Management Design, connectedTo, Supply Chain Management for Components>
+<Prototyping, connectedTo, ASIC Design>
+<Prototyping, controls actuators, Troubleshooting and Debugging>
+<Schematic Capture, connectedTo, Thermal Management>
+<Supply Chain Management for Components, connectedTo, Assembly Line Optimization>
+<Supply Chain Management for Components, connectedTo, Quality Control>
+<Supply Chain Management for Components, performs reverse engineering, Environmental Testing>
+<Thermal Management, connectedTo, Prototyping>
+<Troubleshooting and Debugging, connectedTo, Mechanical Design Integration>
+<Troubleshooting and Debugging, optimizes costs, ASIC Design>
+<Troubleshooting and Debugging, partOf, Troubleshooting and Debugging>
diff --git a/test/graphviz/scanned_hard/graphviz_222.dot b/test/graphviz/scanned_hard/graphviz_222.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1f1b782eff1ccb623d937d4df6132b8235638ea0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_222.dot
@@ -0,0 +1,49 @@
+digraph {
+	rankdir=LR
+	N0 [label="Regulatory Compliance" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+	N1 [label="High_Speed Digital Design" color="#BDBDBD" fillcolor="#F5F5F5" shape=parallelogram style=filled]
+	N2 [label="Mechanical Design Integration" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N3 [label="Optical Module Design" color="#BDBDBD" fillcolor="#F5F5F5" shape=folder style=filled]
+	N4 [label="Circuit Design" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N5 [label="Signal Integrity Analysis" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N6 [label="Testing and Validation" color="#FF9800" fillcolor="#FFE0B2" shape=diamond style=filled]
+	N7 [label="Supply Chain Management for Components" color="#6EB76D" fillcolor="#E9F7E8" shape=plaintext style=filled]
+	N8 [label="ASIC Design" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+	N9 [label="Power Integrity Analysis" color="#FF9800" fillcolor="#FFE0B2" shape=folder style=filled]
+	N10 [label="Mixed_Signal Design" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N11 [label="Sensor Integration" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N12 [label="Troubleshooting and Debugging" color="#FF9800" fillcolor="#FFE0B2" shape=plaintext style=filled]
+	N13 [label="Reverse Engineering" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+	S0 [label="" color="#FF9800" fillcolor="#FFE0B2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#BDBDBD" fillcolor="#F5F5F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Assembly Line Optimization" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="PCB Layout" color="#6EB76D" fillcolor="#E9F7E8" shape=parallelogram style=filled]
+		nest0_1 [label="Quality Control" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+		nest0_2 [label="Electromagnetic Compatibility Testing" color="#6EB76D" fillcolor="#E9F7E8" shape=folder style=filled]
+		nest0_0 -> nest0_1 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label="ensures reliability" color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label="programs microcontrollers" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label="troubleshoots issues" color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label="develops ASICs" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [label="selects components" color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest0_0 [label="supervises assembly" color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N3 [label="designs mechanicals" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> S0 [color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N12 [label="manages supply chains" color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N11 [label="manages cables" color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N6 -> M0 [color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N13 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_222.txt b/test/graphviz/scanned_hard/graphviz_222.txt
new file mode 100644
index 0000000000000000000000000000000000000000..78589d9ea1f0d1867633064e3cee5ccfdad2da6f
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_222.txt
@@ -0,0 +1,24 @@
+<ASIC Design, develops ASICs, Power Integrity Analysis>
+<Circuit Design, ensures reliability, Signal Integrity Analysis>
+<Electromagnetic Compatibility Testing, designs mechanicals, Optical Module Design>
+<Electromagnetic Compatibility Testing, partOf, Electromagnetic Compatibility Testing>
+<High_Speed Digital Design, connectedTo, Mechanical Design Integration>
+<Mechanical Design Integration, connectedTo, Optical Module Design>
+<Mechanical Design Integration, supervises assembly, PCB Layout>
+<Mixed_Signal Design, connectedTo, Sensor Integration>
+<Optical Module Design, connectedTo, Circuit Design>
+<PCB Layout, connectedTo, Quality Control>
+<PCB Layout, partOf, PCB Layout>
+<Power Integrity Analysis, connectedTo, Mixed_Signal Design>
+<Quality Control, connectedTo, Electromagnetic Compatibility Testing>
+<Quality Control, partOf, Quality Control>
+<Regulatory Compliance, connectedTo, High_Speed Digital Design>
+<Regulatory Compliance, connectedTo, Reverse Engineering>
+<Sensor Integration, selects components, Troubleshooting and Debugging>
+<Signal Integrity Analysis, programs microcontrollers, Testing and Validation>
+<Supply Chain Management for Components, manages cables, Sensor Integration>
+<Supply Chain Management for Components, manages supply chains, Troubleshooting and Debugging>
+<Supply Chain Management for Components, troubleshoots issues, ASIC Design>
+<Testing and Validation, connectedTo, Reverse Engineering>
+<Testing and Validation, connectedTo, Supply Chain Management for Components>
+<Troubleshooting and Debugging, connectedTo, Reverse Engineering>
diff --git a/test/graphviz/scanned_hard/graphviz_223.dot b/test/graphviz/scanned_hard/graphviz_223.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6bd1c507904870d846b994378bc815abcc8bea38
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_223.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=BT
+	N0 [label="Database Design for Mobile" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N1 [label="User Onboarding Flows" color="#FFB74D" fillcolor="#FFF3E0" shape=diamond style=filled]
+	N2 [label="User Feedback Collection" color="#FFB74D" fillcolor="#FFF3E0" shape=Mdiamond style=filled]
+	N3 [label="Real_time Communication Features" color="#80DDEA" fillcolor="#D3F7F9" shape=octagon style=filled]
+	N4 [label="Crash Reporting" color="#4FC3F7" fillcolor="#E1F5FE" shape=hexagon style=filled]
+	N5 [label="Cross_Platform Development" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N6 [label="Ad Monetization" color="#80DDEA" fillcolor="#D3F7F9" shape=box style=filled]
+	N7 [label="Chat Functionality" color="#80DDEA" fillcolor="#D3F7F9" shape=parallelogram style=filled]
+	N8 [label="User Interface Design" color="#80DDEA" fillcolor="#D3F7F9" shape=box style=filled]
+	N9 [label=Wireframing color="#80DDEA" fillcolor="#D3F7F9" shape=oval style=filled]
+	N10 [label="Accessibility Features" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	S0 [label="" color="#FFB74D" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFB74D" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label=Prototyping labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Testing and Debugging" color="#4FC3F7" fillcolor="#E1F5FE" shape=diamond style=filled]
+		nest0_1 [label="Native App Development" color="#80DDEA" fillcolor="#D3F7F9" shape=Mdiamond style=filled]
+		nest0_0 -> nest0_1 [label="integrates ads" color="#4FC3F7" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label="implements security" color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#4FC3F7" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label="builds prototypes" color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="integrates in_app purchases" color="#4FC3F7" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label="processes payments" color="#4FC3F7" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [label="designs widgets" color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+	N8 -> nest0_0 [color="#4FC3F7" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N0 -> S0 [color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+	S0 -> N5 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N7 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	S0 -> N4 [color="#4FC3F7" dir=forward penwidth=1.5 style=solid]
+	N6 -> S1 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N9 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N10 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_223.txt b/test/graphviz/scanned_hard/graphviz_223.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b8b0160a8d7d3461c99ad40faf90a8b39bb1c000
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_223.txt
@@ -0,0 +1,21 @@
+<Ad Monetization, connectedTo, Accessibility Features>
+<Ad Monetization, connectedTo, Chat Functionality>
+<Ad Monetization, connectedTo, User Interface Design>
+<Ad Monetization, connectedTo, Wireframing>
+<Chat Functionality, connectedTo, User Interface Design>
+<Crash Reporting, processes payments, Cross_Platform Development>
+<Cross_Platform Development, connectedTo, Ad Monetization>
+<Database Design for Mobile, connectedTo, Chat Functionality>
+<Database Design for Mobile, connectedTo, Crash Reporting>
+<Database Design for Mobile, connectedTo, Cross_Platform Development>
+<Database Design for Mobile, implements security, User Onboarding Flows>
+<Native App Development, connectedTo, User Feedback Collection>
+<Native App Development, partOf, Native App Development>
+<Real_time Communication Features, integrates in_app purchases, Crash Reporting>
+<Testing and Debugging, integrates ads, Native App Development>
+<Testing and Debugging, partOf, Testing and Debugging>
+<User Feedback Collection, builds prototypes, Real_time Communication Features>
+<User Interface Design, connectedTo, Testing and Debugging>
+<User Interface Design, connectedTo, Wireframing>
+<User Onboarding Flows, connectedTo, User Feedback Collection>
+<Wireframing, designs widgets, Accessibility Features>
diff --git a/test/graphviz/scanned_hard/graphviz_224.dot b/test/graphviz/scanned_hard/graphviz_224.dot
new file mode 100644
index 0000000000000000000000000000000000000000..059bdaae4362454fd6a82997967ff0fbf83f9bba
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_224.dot
@@ -0,0 +1,34 @@
+digraph {
+	rankdir=LR
+	N0 [label="App Store Optimization" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	N1 [label="User Onboarding Flows" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N2 [label="AR or VR Features in Mobile" color="#CFCFCF" fillcolor="#F6F6F6" shape=folder style=filled]
+	N3 [label="In_App Purchase Integration" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N4 [label="Deployment to App Stores" color="#CFCFCF" fillcolor="#F6F6F6" shape=oval style=filled]
+	N5 [label="Chat Functionality" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+	N6 [label="Gamification Elements" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	M0 [label="" color="#3F51B5" fillcolor="#C5CAE9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Push Notification Implementation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="API Development" color="#A2D0FF" fillcolor="#E8F0FF" shape=oval style=filled]
+		nest0_1 [label="User Interface Design" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+		nest0_2 [label="User Experience Design" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+		nest0_3 [label="Subscription Management" color="#3F51B5" fillcolor="#C5CAE9" shape=folder style=filled]
+		nest0_0 -> nest0_1 [label="designs APIs" color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="implements security" color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label="develops native apps" color="#CFCFCF" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest0_0 [label="monitors crashes" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N3 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [label="conducts tests" color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N5 [color="#CFCFCF" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest0_1 [color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_224.txt b/test/graphviz/scanned_hard/graphviz_224.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9deae201ac09a95a5362ec325fa67251fbe3bc18
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_224.txt
@@ -0,0 +1,18 @@
+<API Development, designs APIs, User Interface Design>
+<API Development, partOf, API Development>
+<AR or VR Features in Mobile, conducts tests, Chat Functionality>
+<AR or VR Features in Mobile, connectedTo, In_App Purchase Integration>
+<App Store Optimization, connectedTo, Chat Functionality>
+<App Store Optimization, connectedTo, User Onboarding Flows>
+<Chat Functionality, connectedTo, Gamification Elements>
+<Chat Functionality, monitors crashes, API Development>
+<Deployment to App Stores, develops native apps, Chat Functionality>
+<In_App Purchase Integration, implements security, Deployment to App Stores>
+<Subscription Management, connectedTo, In_App Purchase Integration>
+<Subscription Management, partOf, Subscription Management>
+<User Experience Design, connectedTo, Subscription Management>
+<User Experience Design, partOf, User Experience Design>
+<User Interface Design, connectedTo, User Experience Design>
+<User Interface Design, partOf, User Interface Design>
+<User Onboarding Flows, connectedTo, AR or VR Features in Mobile>
+<User Onboarding Flows, connectedTo, User Interface Design>
diff --git a/test/graphviz/scanned_hard/graphviz_225.dot b/test/graphviz/scanned_hard/graphviz_225.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f28e3ee036ca9f17fa7a9884335e525669b8e9aa
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_225.dot
@@ -0,0 +1,51 @@
+digraph {
+	rankdir=LR
+	N0 [label="User Interface Design" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N1 [label="Payment Gateway Integration" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N2 [label="Cross_Platform Development" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+	N3 [label="Gamification Elements" color="#7986CB" fillcolor="#E8EAF6" shape=Mdiamond style=filled]
+	N4 [label="Biometric Authentication" color="#BCB88A" fillcolor="#F5F5DC" shape=octagon style=filled]
+	N5 [label="AR or VR Features in Mobile" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+	N6 [label="Security Implementation" color="#BCB88A" fillcolor="#F5F5DC" shape=plaintext style=filled]
+	N7 [label="Updates and Maintenance" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N8 [label="IoT Device Control via App" color="#BCB88A" fillcolor="#F5F5DC" shape=Mdiamond style=filled]
+	N9 [label="Backend Integration" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N10 [label="Accessibility Features" color="#7986CB" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N11 [label="Concept Development" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	S1 [label="" color="#BCB88A" fillcolor="#F5F5DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#5C6BC0" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#BCB88A" fillcolor="#F5F5DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="In_App Purchase Integration" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Microphone Integration" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+		nest0_1 [label="Testing and Debugging" color="#7986CB" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+		nest0_2 [label=Prototyping color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+		nest0_3 [label="Crash Reporting" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [label="uses microphone" color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label="monitors crashes" color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label="develops AR or VR features" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label="conducts tests" color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label="designs onboarding" color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N1 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N5 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	S1 -> N4 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [label="optimizes performance" color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [label="integrates ads" color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N8 [color="#BCB88A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#BCB88A" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N6 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_226.txt b/test/graphviz/scanned_hard/graphviz_226.txt
new file mode 100644
index 0000000000000000000000000000000000000000..38506ddbc051e1cc76c2f65fbc523cff787b2d1e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_226.txt
@@ -0,0 +1,29 @@
+<Audience Engagement, connectedTo, Content Moderation>
+<Audience Engagement, partOf, Audience Engagement>
+<Brand Voice Development, connectedTo, Ethical Use of Social Media>
+<Brand Voice Development, connectedTo, Hashtag Research>
+<Content Moderation, measures reach, Link_in_Bio Optimization>
+<Content Moderation, partOf, Content Moderation>
+<Cross_Promotion, connectedTo, Polls and Quizzes Creation>
+<Emerging Platform Exploration, connectedTo, Brand Voice Development>
+<Emerging Platform Exploration, connectedTo, Cross_Promotion>
+<Emerging Platform Exploration, connectedTo, Polls and Quizzes Creation>
+<Emerging Platform Exploration, monitors competitors, Ethical Use of Social Media>
+<Ethical Use of Social Media, connectedTo, Hashtag Research>
+<Group Management, connectedTo, Audience Engagement>
+<Group Management, partOf, Group Management>
+<Link_in_Bio Optimization, connectedTo, Live Streaming on Social Media>
+<Link_in_Bio Optimization, partOf, Link_in_Bio Optimization>
+<Live Streaming on Social Media, connectedTo, Emerging Platform Exploration>
+<Live Streaming on Social Media, connectedTo, Ethical Use of Social Media>
+<Live Streaming on Social Media, connectedTo, Reels or Short Video Production>
+<Live Streaming on Social Media, connectedTo, Social Listening>
+<Performance Analytics, connectedTo, Emerging Platform Exploration>
+<Polls and Quizzes Creation, connectedTo, Brand Voice Development>
+<Reels or Short Video Production, connectedTo, Reporting and Optimization>
+<Reels or Short Video Production, creates content, Hashtag Research>
+<Reporting and Optimization, builds reputation, Group Management>
+<Reporting and Optimization, connectedTo, Hashtag Research>
+<Reporting and Optimization, connectedTo, Social Listening>
+<Reputation Management, creates stories, Live Streaming on Social Media>
+<Social Listening, connectedTo, Performance Analytics>
diff --git a/test/graphviz/scanned_hard/graphviz_227.dot b/test/graphviz/scanned_hard/graphviz_227.dot
new file mode 100644
index 0000000000000000000000000000000000000000..240825c41813e19e96fc8bc0f7fccf7002f3f48c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_227.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=BT
+	N0 [label="Competitor Analysis" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N1 [label="Content Creation" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+	N2 [label="Hashtag Research" color="#E57373" fillcolor="#FFEBEE" shape=diamond style=filled]
+	N3 [label="Story Format Content Creation" color="#E57373" fillcolor="#FFEBEE" shape=hexagon style=filled]
+	N4 [label="Community Management" color="#2196F3" fillcolor="#BBDEFB" shape=oval style=filled]
+	N5 [label="Campaign Management" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N6 [label="Reels or Short Video Production" color="#E57373" fillcolor="#FFEBEE" shape=diamond style=filled]
+	N7 [label="Social Media Audits" color="#2196F3" fillcolor="#BBDEFB" shape=ellipse style=filled]
+	S0 [label="" color="#4285F4" fillcolor="#D0E0F8" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#2196F3" fillcolor="#BBDEFB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#E57373" fillcolor="#FFEBEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Follower Growth Monitoring" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Live Streaming on Social Media" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+		nest0_1 [label="Paid Social Media Advertising" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+		nest0_2 [label="Scheduling Posts" color="#E57373" fillcolor="#FFEBEE" shape=Mdiamond style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#2196F3" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label="monitors trends" color="#2196F3" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#2196F3" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="moderates comments" color="#2196F3" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label="develops crisis plans" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N6 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N0 -> S0 [color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N5 [label="tracks performance" color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N4 -> S1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [label="measures reach" color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	S1 -> N7 [color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [label="performs social listening" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N5 [color="#2196F3" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_227.txt b/test/graphviz/scanned_hard/graphviz_227.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d3c15de6eddabecd5632fd1d80c2c490a85a1d3e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_227.txt
@@ -0,0 +1,20 @@
+<Campaign Management, connectedTo, Reels or Short Video Production>
+<Community Management, connectedTo, Social Media Audits>
+<Community Management, develops crisis plans, Campaign Management>
+<Community Management, measures reach, Reels or Short Video Production>
+<Competitor Analysis, connectedTo, Reels or Short Video Production>
+<Competitor Analysis, monitors trends, Content Creation>
+<Competitor Analysis, tracks performance, Campaign Management>
+<Content Creation, connectedTo, Hashtag Research>
+<Hashtag Research, connectedTo, Story Format Content Creation>
+<Hashtag Research, performs social listening, Campaign Management>
+<Live Streaming on Social Media, connectedTo, Paid Social Media Advertising>
+<Live Streaming on Social Media, partOf, Live Streaming on Social Media>
+<Paid Social Media Advertising, connectedTo, Scheduling Posts>
+<Paid Social Media Advertising, partOf, Paid Social Media Advertising>
+<Reels or Short Video Production, connectedTo, Live Streaming on Social Media>
+<Reels or Short Video Production, connectedTo, Social Media Audits>
+<Scheduling Posts, connectedTo, Reels or Short Video Production>
+<Scheduling Posts, partOf, Scheduling Posts>
+<Story Format Content Creation, connectedTo, Campaign Management>
+<Story Format Content Creation, moderates comments, Community Management>
diff --git a/test/graphviz/scanned_hard/graphviz_229.dot b/test/graphviz/scanned_hard/graphviz_229.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d6abf36ffffc018ca539d49877a5683411507ec5
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_229.dot
@@ -0,0 +1,45 @@
+digraph {
+	rankdir=TD
+	N0 [label="Negative SEO Prevention" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N1 [label="Academic Search" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N2 [label="On_Page SEO" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N3 [label="Search Engine Marketing Strategy" color="#388E3C" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N4 [label="Ranking Algorithms" color="#388E3C" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N5 [label="Search Result Display" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N6 [label="Query Processing" color="#FFC107" fillcolor="#FFECB3" shape=diamond style=filled]
+	N7 [label="Indexing Content" color="#FFF176" fillcolor="#FFFDE7" shape=oval style=filled]
+	N8 [label="Google Analytics Integration" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	N9 [label="Local SEO" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	S0 [label="" color="#388E3C" fillcolor="#C8E6C9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFC107" fillcolor="#FFECB3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Off_Page SEO" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Core Web Vitals Optimization" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+		nest0_1 [label="Schema Markup Implementation" color="#FFC107" fillcolor="#FFECB3" shape=Mdiamond style=filled]
+		nest0_2 [label="International SEO" color="#FFF176" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+		nest0_3 [label="Featured Snippets Optimization" color="#FFC107" fillcolor="#FFECB3" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [label="improves core vitals" color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label="indexes news" color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="processes queries" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label="designs site architecture" color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest0_0 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N6 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [label="analyzes competitors" color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [label="processes updates" color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N4 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_229.txt b/test/graphviz/scanned_hard/graphviz_229.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cde58c938500d8a7d0757660869e8c92b261a902
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_229.txt
@@ -0,0 +1,24 @@
+<Academic Search, connectedTo, On_Page SEO>
+<Academic Search, connectedTo, Ranking Algorithms>
+<Core Web Vitals Optimization, improves core vitals, Schema Markup Implementation>
+<Core Web Vitals Optimization, partOf, Core Web Vitals Optimization>
+<Featured Snippets Optimization, connectedTo, Query Processing>
+<Featured Snippets Optimization, partOf, Featured Snippets Optimization>
+<Google Analytics Integration, connectedTo, Local SEO>
+<Indexing Content, connectedTo, Google Analytics Integration>
+<International SEO, connectedTo, Featured Snippets Optimization>
+<International SEO, partOf, International SEO>
+<Negative SEO Prevention, analyzes competitors, Ranking Algorithms>
+<Negative SEO Prevention, connectedTo, Academic Search>
+<On_Page SEO, indexes news, Search Engine Marketing Strategy>
+<On_Page SEO, processes updates, Ranking Algorithms>
+<Query Processing, connectedTo, Indexing Content>
+<Ranking Algorithms, designs site architecture, Search Result Display>
+<Schema Markup Implementation, connectedTo, International SEO>
+<Schema Markup Implementation, partOf, Schema Markup Implementation>
+<Search Engine Marketing Strategy, connectedTo, Google Analytics Integration>
+<Search Engine Marketing Strategy, connectedTo, Indexing Content>
+<Search Engine Marketing Strategy, connectedTo, Local SEO>
+<Search Engine Marketing Strategy, processes queries, Ranking Algorithms>
+<Search Result Display, connectedTo, Core Web Vitals Optimization>
+<Search Result Display, connectedTo, Query Processing>
diff --git a/test/graphviz/scanned_hard/graphviz_23.dot b/test/graphviz/scanned_hard/graphviz_23.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bb2e0b4522ca711b066bd644a3d56e88ab71b37d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_23.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=TD
+	N0 [label="Device Pairing" color="#B0C5CD" fillcolor="#DFE7EB" shape=ellipse style=filled]
+	N1 [label="Pet Feeder Automation" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N2 [label="Firmware Update" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+	N3 [label="Doorbell Camera Alert" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N4 [label="Elderly Care Monitoring" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N5 [label="Motion Detection" color="#4285F4" fillcolor="#D0E0F8" shape=diamond style=filled]
+	N6 [label="Scene Creation" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N7 [label="Remote Control" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N8 [label="Smart Plug Management" color="#4285F4" fillcolor="#D0E0F8" shape=Mdiamond style=filled]
+	N9 [label="Door Lock Management" color="#B0C5CD" fillcolor="#DFE7EB" shape=Mdiamond style=filled]
+	N10 [label="Air Quality Monitoring" color="#B0C5CD" fillcolor="#DFE7EB" shape=ellipse style=filled]
+	N0 -> N1 [label=controls color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=entertains color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=installs color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=streams color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=communicates color="#B0C5CD" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=measures color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N10 [label=records color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N7 [label=adapts color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_231.txt b/test/graphviz/scanned_hard/graphviz_231.txt
new file mode 100644
index 0000000000000000000000000000000000000000..db62ea1952a80823dc940267e614ff515ec71e74
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_231.txt
@@ -0,0 +1,18 @@
+<Click_Through Rate Optimization, connectedTo, Personalized Search Results>
+<Click_Through Rate Optimization, partOf, Click_Through Rate Optimization>
+<Competitor Keyword Analysis, connectedTo, User Experience for Search>
+<Competitor Keyword Analysis, indexes academic papers, Search Console Management>
+<Competitor Keyword Analysis, manages SEM, Personalized Search Results>
+<Negative SEO Prevention, connectedTo, Competitor Keyword Analysis>
+<News Search, connectedTo, Click_Through Rate Optimization>
+<News Search, partOf, News Search>
+<Personalized Search Results, connectedTo, Penalties Recovery>
+<Personalized Search Results, connectedTo, Ranking Algorithms>
+<Personalized Search Results, processes updates, User Experience for Search>
+<Ranking Algorithms, connectedTo, Penalties Recovery>
+<Search Console Management, connectedTo, Search Engine Optimization>
+<Search Console Management, connectedTo, Video Search>
+<Search Engine Optimization, connectedTo, News Search>
+<Search Engine Optimization, partOf, Search Engine Optimization>
+<User Experience for Search, understands intent, Ranking Algorithms>
+<Video Search, connectedTo, Personalized Search Results>
diff --git a/test/graphviz/scanned_hard/graphviz_233.dot b/test/graphviz/scanned_hard/graphviz_233.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d866c93a90420afed491d93659e5439b1acc05fd
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_233.dot
@@ -0,0 +1,45 @@
+digraph {
+	rankdir=RL
+	N0 [label="Biometric Authentication" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	N1 [label="Password Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+	N2 [label="Fraud Detection in Identity" color="#D3EB9F" fillcolor="#F8FDD3" shape=Mdiamond style=filled]
+	N3 [label=Authentication color="#FFB74D" fillcolor="#FFF3E0" shape=box style=filled]
+	N4 [label="Decentralized Identifiers" color="#D3EB9F" fillcolor="#F8FDD3" shape=plaintext style=filled]
+	N5 [label="User Registration" color="#FFB74D" fillcolor="#FFF3E0" shape=folder style=filled]
+	N6 [label="API Security for Identity" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	N7 [label=De_provisioning color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	N8 [label="Blockchain_based Identity" color="#5C6BC0" fillcolor="#E8EAF6" shape=Mdiamond style=filled]
+	N9 [label="Attribute Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	S0 [label="" color="#5C6BC0" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#D3EB9F" fillcolor="#F8FDD3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#5C6BC0" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Risk_Based Authentication" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Compliance with Data Protection Regulations" color="#FFB74D" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+		nest0_1 [label="User Provisioning" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+		nest0_2 [label="Verifiable Credentials" color="#FFB74D" fillcolor="#FFF3E0" shape=oval style=filled]
+		nest0_0 -> nest0_1 [color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [label="de_provisions users" color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label="ensures privacy" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N8 -> nest0_0 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N2 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> S0 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [label="manages wallets" color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [label="manages passwords" color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [label="authenticates users" color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	M0 -> N7 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [label="implements adaptive authentication" color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N3 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_233.txt b/test/graphviz/scanned_hard/graphviz_233.txt
new file mode 100644
index 0000000000000000000000000000000000000000..42b32c97dfeadf0fb4da4bbd54a56412888da879
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_233.txt
@@ -0,0 +1,22 @@
+<API Security for Identity, connectedTo, De_provisioning>
+<Authentication, connectedTo, Decentralized Identifiers>
+<Biometric Authentication, connectedTo, Authentication>
+<Biometric Authentication, connectedTo, Password Management>
+<Biometric Authentication, manages passwords, De_provisioning>
+<Blockchain_based Identity, connectedTo, Attribute Management>
+<Blockchain_based Identity, connectedTo, Compliance with Data Protection Regulations>
+<Compliance with Data Protection Regulations, connectedTo, User Provisioning>
+<Compliance with Data Protection Regulations, partOf, Compliance with Data Protection Regulations>
+<De_provisioning, connectedTo, Blockchain_based Identity>
+<Decentralized Identifiers, connectedTo, User Registration>
+<Fraud Detection in Identity, authenticates users, De_provisioning>
+<Fraud Detection in Identity, connectedTo, Authentication>
+<Password Management, connectedTo, Fraud Detection in Identity>
+<Password Management, implements adaptive authentication, Authentication>
+<User Provisioning, de_provisions users, Verifiable Credentials>
+<User Provisioning, partOf, User Provisioning>
+<User Registration, connectedTo, De_provisioning>
+<User Registration, ensures privacy, API Security for Identity>
+<User Registration, manages wallets, Attribute Management>
+<Verifiable Credentials, connectedTo, Fraud Detection in Identity>
+<Verifiable Credentials, partOf, Verifiable Credentials>
diff --git a/test/graphviz/scanned_hard/graphviz_235.dot b/test/graphviz/scanned_hard/graphviz_235.dot
new file mode 100644
index 0000000000000000000000000000000000000000..03fd97f5fd0eaec7d1a009087dd21ac1524c08e8
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_235.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=BT
+	N0 [label="Peer_to_Peer Learning" color="#2196F3" fillcolor="#BBDEFB" shape=ellipse style=filled]
+	N1 [label="Language Learning Platforms" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N2 [label="Student Engagement Strategies" color="#2196F3" fillcolor="#BBDEFB" shape=octagon style=filled]
+	N3 [label="Synchronous Learning" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N4 [label="Adaptive Learning Technologies" color="#2196F3" fillcolor="#BBDEFB" shape=ellipse style=filled]
+	N5 [label="Blended Learning Models" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N6 [label="Asynchronous Learning" color="#7986CB" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	N7 [label="Interactive Learning Activities" color="#FFF176" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N8 [label="Enrollment and Retention Strategies" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N9 [label="Bootcamp Development" color="#2196F3" fillcolor="#BBDEFB" shape=folder style=filled]
+	N10 [label="Course Evaluation" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	S0 [label="" color="#7986CB" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFF176" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Content Creation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Virtual Labs and Simulations" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+		nest0_1 [label="Feedback and Grading" color="#2196F3" fillcolor="#BBDEFB" shape=Mdiamond style=filled]
+		nest0_0 -> nest0_1 [label="engages parents" color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#2196F3" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#2196F3" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#2196F3" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label="develops platforms" color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#2196F3" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label="provides digital textbooks" color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#2196F3" dir=forward penwidth=1.5 style=dashed]
+	N4 -> nest0_0 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N8 [color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N3 -> S0 [color="#2196F3" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [label="secures platforms" color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N8 [color="#2196F3" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_236.txt b/test/graphviz/scanned_hard/graphviz_236.txt
new file mode 100644
index 0000000000000000000000000000000000000000..236527ee88a6b83e48421cde0cc9a7c846607fe4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_236.txt
@@ -0,0 +1,20 @@
+<Accreditation Management, connectedTo, Bootcamp Development>
+<Accreditation Management, facilitates discussions, Assessment Design>
+<Assessment Design, connectedTo, Bootcamp Development>
+<Assessment Design, offers online tutoring, Feedback and Grading>
+<Asynchronous Learning, connectedTo, Collaborative Projects>
+<Collaborative Projects, connectedTo, Discussion Forum Moderation>
+<Course Evaluation, connectedTo, Bootcamp Development>
+<Course Evaluation, connectedTo, Enrollment and Retention Strategies>
+<Discussion Forum Moderation, connectedTo, Virtual Labs and Simulations>
+<Enrollment and Retention Strategies, connectedTo, Accreditation Management>
+<Enrollment and Retention Strategies, connectedTo, Assessment Design>
+<Enrollment and Retention Strategies, connectedTo, Asynchronous Learning>
+<Enrollment and Retention Strategies, offers professional development, Collaborative Projects>
+<Feedback and Grading, connectedTo, Gamification in Education>
+<Feedback and Grading, partOf, Feedback and Grading>
+<Gamification in Education, manages student info, Peer_to_Peer Learning>
+<Gamification in Education, partOf, Gamification in Education>
+<Peer_to_Peer Learning, partOf, Peer_to_Peer Learning>
+<Peer_to_Peer Learning, supports SEL, Discussion Forum Moderation>
+<Virtual Labs and Simulations, manages enrollments, Accreditation Management>
diff --git a/test/graphviz/scanned_hard/graphviz_237.dot b/test/graphviz/scanned_hard/graphviz_237.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5a2062c4d50bce22f673480e9d25446bf3f99403
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_237.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=BT
+	N0 [label="Competency_Based Education" color="#4DB6AC" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N1 [label="Content Creation" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N2 [label="Accreditation Management" color="#AABEC6" fillcolor="#E0E6E9" shape=folder style=filled]
+	N3 [label="Personalized Learning Paths" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N4 [label="Adaptive Learning Technologies" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N5 [label="AI in Online Education" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N6 [label="Enrollment and Retention Strategies" color="#03A9F4" fillcolor="#B3E5FC" shape=hexagon style=filled]
+	N7 [label="Test Preparation Courses" color="#AABEC6" fillcolor="#E0E6E9" shape=Mdiamond style=filled]
+	N8 [label="Student Progress Tracking" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N9 [label="Accessibility Features" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N10 [label="Course Design" color="#AABEC6" fillcolor="#E0E6E9" shape=oval style=filled]
+	N11 [label="Blended Learning Models" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N12 [label="Feedback and Grading" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	S1 [label="" color="#03A9F4" fillcolor="#B3E5FC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#AABEC6" fillcolor="#E0E6E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Online Tutoring" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Professional Development Courses" color="#4DB6AC" fillcolor="#E0F2F1" shape=folder style=filled]
+		nest0_1 [label="Digital Badges" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [label="uses machine learning" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label="provides digital textbooks" color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label="manages enrollments" color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N2 -> nest0_0 [label="develops platforms" color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N9 [label="provides OER" color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N2 -> S1 [color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	S1 -> N7 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	S1 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> M1 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [label="analyzes learning data" color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N9 [color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N7 -> N5 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_238.txt b/test/graphviz/scanned_hard/graphviz_238.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8b7c5469d6e94ce1e8d3fb21930b48ec312df1ea
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_238.txt
@@ -0,0 +1,19 @@
+<Continuous Course Improvement, partOf, Continuous Course Improvement>
+<Continuous Course Improvement, provides readings, Research on MOOC Effectiveness>
+<Corporate Training Solutions, connectedTo, Marketing to Global Audience>
+<Corporate Training Solutions, connectedTo, Technical Infrastructure for Scale>
+<Course Audit Options, connectedTo, Corporate Training Solutions>
+<Course Audit Options, researches impact, Technical Infrastructure for Scale>
+<Gamification for Engagement, connectedTo, Continuous Course Improvement>
+<Gamification for Engagement, partOf, Gamification for Engagement>
+<Learner Feedback Analysis, connectedTo, Completion Rate Optimization>
+<Learner Feedback Analysis, connectedTo, Mobile Learning Experience>
+<Learner Feedback Analysis, connectedTo, Technical Infrastructure for Scale>
+<Marketing to Global Audience, connectedTo, Completion Rate Optimization>
+<Marketing to Global Audience, connectedTo, Technical Infrastructure for Scale>
+<Marketing to Global Audience, evaluates effectiveness, Research on MOOC Effectiveness>
+<Marketing to Global Audience, offers pathways, Learner Feedback Analysis>
+<Mobile Learning Experience, connectedTo, Completion Rate Optimization>
+<Research on MOOC Effectiveness, connectedTo, Learner Feedback Analysis>
+<Research on MOOC Effectiveness, tracks completion, Gamification for Engagement>
+<Technical Infrastructure for Scale, secures data, Mobile Learning Experience>
diff --git a/test/graphviz/scanned_hard/graphviz_24.dot b/test/graphviz/scanned_hard/graphviz_24.dot
new file mode 100644
index 0000000000000000000000000000000000000000..aea8ee5bf85b6056bf5bb2bc016b199587da2130
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_24.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=LR
+	N0 [label="Energy Grid Management" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N1 [label="Data Privacy Protection" color="#4285F4" fillcolor="#D0E0F8" shape=octagon style=filled]
+	N2 [label="Waste Management Optimization" color="#F44336" fillcolor="#FFCDD2" shape=Mdiamond style=filled]
+	N3 [label="Waste Recycling Program" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N4 [label="Smart Lighting" color="#4285F4" fillcolor="#D0E0F8" shape=oval style=filled]
+	N5 [label="Traffic Flow Optimization" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+	N6 [label="Environmental Sensor Network" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N7 [label="Smart Building Integration" color="#F44336" fillcolor="#FFCDD2" shape=plaintext style=filled]
+	N8 [label="Smart Education Initiatives" color="#BDAFA8" fillcolor="#E4E0DF" shape=ellipse style=filled]
+	N9 [label="City_wide Sensor Network Deployment" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N0 -> N1 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=routes color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=regulates color="#BDAFA8" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=predicts color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=connects color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N6 [label=audits color="#BDAFA8" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_241.txt b/test/graphviz/scanned_hard/graphviz_241.txt
new file mode 100644
index 0000000000000000000000000000000000000000..40738890a91e66ec21db38ed2c60d5396093b5a2
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_241.txt
@@ -0,0 +1,39 @@
+<Approval Decision, connectedTo, Financial Reporting>
+<Asset Management, connectedTo, Tax Preparation>
+<Asset Management, partOf, Asset Management>
+<Budgeting Analysis, connectedTo, Debt Collection>
+<Budgeting Analysis, partOf, Budgeting Analysis>
+<Collateral Evaluation, connectedTo, Credit Scoring>
+<Collateral Evaluation, connectedTo, Customer Onboarding>
+<Compliance Review, connectedTo, Asset Management>
+<Compliance Review, partOf, Compliance Review>
+<Credit Card Application, connectedTo, Dispute Resolution>
+<Credit Card Application, connectedTo, Market Analysis>
+<Credit Card Application, connectedTo, Merger and Acquisition>
+<Credit Scoring, connectedTo, Fraud Check>
+<Customer Onboarding, connectedTo, Credit Scoring>
+<Debt Collection, manages, Payment Gateway Integration>
+<Debt Collection, partOf, Debt Collection>
+<Dispute Resolution, connectedTo, Mortgage Application>
+<Financial Reporting, calculates, Collateral Evaluation>
+<Financial Reporting, connectedTo, Credit Scoring>
+<Forex Trading, connectedTo, Approval Decision>
+<Forex Trading, connectedTo, Credit Card Application>
+<Forex Trading, connectedTo, Credit Scoring>
+<Forex Trading, connectedTo, Mortgage Application>
+<Fraud Check, connectedTo, Credit Card Application>
+<Fraud Check, rejects, Compliance Review>
+<Loan Processing, connectedTo, Risk Assessment>
+<Market Analysis, connectedTo, Merger and Acquisition>
+<Mortgage Application, connectedTo, Budgeting Analysis>
+<Mortgage Application, connectedTo, Portfolio Management>
+<Payment Gateway Integration, connectedTo, Treasury Management>
+<Payment Gateway Integration, partOf, Payment Gateway Integration>
+<Portfolio Management, connectedTo, Market Analysis>
+<Risk Assessment, connectedTo, Forex Trading>
+<Tax Preparation, partOf, Tax Preparation>
+<Tax Preparation, reports, Wealth Management>
+<Treasury Management, connectedTo, Credit Scoring>
+<Treasury Management, partOf, Treasury Management>
+<Wealth Management, models, Collateral Evaluation>
+<Wealth Management, partOf, Wealth Management>
diff --git a/test/graphviz/scanned_hard/graphviz_242.dot b/test/graphviz/scanned_hard/graphviz_242.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7bf0d0e5bfa18a1a773542739bc82d7ea218b878
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_242.dot
@@ -0,0 +1,64 @@
+digraph {
+	rankdir=RL
+	N0 [label=Discharge color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	N1 [label="Health Screening" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N2 [label="Imaging Scan" color="#64B5F6" fillcolor="#E3F2FD" shape=hexagon style=filled]
+	N3 [label="Blood Test" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+	N4 [label="Medication Dispensing" color="#64B5F6" fillcolor="#E3F2FD" shape=octagon style=filled]
+	N5 [label="Clinical Trial" color="#AABEC6" fillcolor="#E0E6E9" shape=Mdiamond style=filled]
+	N6 [label=Prescription color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+	N7 [label="Patient Intake" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N8 [label="Mental Health Assessment" color="#64B5F6" fillcolor="#E3F2FD" shape=folder style=filled]
+	N9 [label=Referral color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N10 [label="Lab Test" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	S0 [label="" color="#64B5F6" fillcolor="#E3F2FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#AABEC6" fillcolor="#E0E6E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#A188D0" fillcolor="#DACBE3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Wound Care" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Case Review" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+		nest0_1 [label=Diagnosis color="#64B5F6" fillcolor="#E3F2FD" shape=octagon style=filled]
+		nest0_2 [label="Anesthesia Administration" color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+		nest0_3 [label="Treatment Plan" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label=Vaccination labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label=Triage color="#A188D0" fillcolor="#DACBE3" shape=oval style=filled]
+		nest1_1 [label="Physical Examination" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+		nest1_2 [label="Patient Education" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+		nest1_3 [label="Rehabilitation Therapy" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=reviews color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N8 -> nest0_0 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N2 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N2 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest1_3 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> S0 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	S0 -> N4 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> S1 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N7 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N9 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N4 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_242.txt b/test/graphviz/scanned_hard/graphviz_242.txt
new file mode 100644
index 0000000000000000000000000000000000000000..44f6d47ce94c74c3f6fabee9805912bf10f1989d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_242.txt
@@ -0,0 +1,36 @@
+<Anesthesia Administration, connectedTo, Treatment Plan>
+<Anesthesia Administration, partOf, Anesthesia Administration>
+<Blood Test, connectedTo, Medication Dispensing>
+<Case Review, connectedTo, Diagnosis>
+<Case Review, partOf, Case Review>
+<Clinical Trial, connectedTo, Prescription>
+<Diagnosis, connectedTo, Anesthesia Administration>
+<Diagnosis, partOf, Diagnosis>
+<Discharge, connectedTo, Health Screening>
+<Discharge, connectedTo, Medication Dispensing>
+<Health Screening, connectedTo, Imaging Scan>
+<Health Screening, connectedTo, Medication Dispensing>
+<Imaging Scan, connectedTo, Blood Test>
+<Imaging Scan, connectedTo, Clinical Trial>
+<Imaging Scan, connectedTo, Medication Dispensing>
+<Imaging Scan, connectedTo, Referral>
+<Imaging Scan, connectedTo, Triage>
+<Medication Dispensing, connectedTo, Clinical Trial>
+<Medication Dispensing, connectedTo, Lab Test>
+<Medication Dispensing, connectedTo, Patient Intake>
+<Medication Dispensing, connectedTo, Referral>
+<Mental Health Assessment, connectedTo, Case Review>
+<Mental Health Assessment, connectedTo, Referral>
+<Patient Education, connectedTo, Rehabilitation Therapy>
+<Patient Education, partOf, Patient Education>
+<Patient Intake, connectedTo, Mental Health Assessment>
+<Physical Examination, connectedTo, Patient Education>
+<Physical Examination, partOf, Physical Examination>
+<Prescription, reviews, Patient Intake>
+<Referral, connectedTo, Lab Test>
+<Rehabilitation Therapy, connectedTo, Prescription>
+<Rehabilitation Therapy, partOf, Rehabilitation Therapy>
+<Treatment Plan, connectedTo, Imaging Scan>
+<Treatment Plan, partOf, Treatment Plan>
+<Triage, connectedTo, Physical Examination>
+<Triage, partOf, Triage>
diff --git a/test/graphviz/scanned_hard/graphviz_243.dot b/test/graphviz/scanned_hard/graphviz_243.dot
new file mode 100644
index 0000000000000000000000000000000000000000..28c591fde457e4bced9fdbac95de6d86dbe8defc
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_243.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=TD
+	N0 [label="Logistics Planning" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N1 [label="Parts Replacement" color="#673AB7" fillcolor="#D1C4E9" shape=Mdiamond style=filled]
+	N2 [label="Component Sourcing" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N3 [label="Final Testing" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	N4 [label="Product Design" color="#FFCC80" fillcolor="#FFF0CC" shape=plaintext style=filled]
+	N5 [label="Tool Path Generation" color="#673AB7" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N6 [label="Batch Tracking" color="#FF9800" fillcolor="#FFE0B2" shape=parallelogram style=filled]
+	N7 [label="Factory Layout Planning" color="#673AB7" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N8 [label="Work_in_Progress Monitoring" color="#673AB7" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N9 [label="Supply Chain Synchronization" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N10 [label="Raw Material" color="#673AB7" fillcolor="#D1C4E9" shape=Mdiamond style=filled]
+	N11 [label="Machine Calibration" color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N12 [label="Automated Assembly" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N13 [label="Inventory Check" color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N14 [label="Environmental Compliance" color="#FFCC80" fillcolor="#FFF0CC" shape=Mdiamond style=filled]
+	N15 [label=Shipping color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	S1 [label="" color="#FF9800" fillcolor="#FFE0B2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#FFCC80" fillcolor="#FFF0CC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FF9800" fillcolor="#FFE0B2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#FFCC80" fillcolor="#FFF0CC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Recycling Process" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Robotics Integration" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+		nest0_1 [label="Safety Audit" color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+		nest0_2 [label=Packaging color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [label=paints color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label=Assembly labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label=Maintenance color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+		nest1_1 [label="Workflow Optimization" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [label=plans color="#000000" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N4 -> nest0_0 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N7 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N1 -> nest1_0 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	nest1_1 -> N6 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N12 -> S1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N14 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	S1 -> N15 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N0 -> S2 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N3 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N6 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	S2 -> N14 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	M0 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M2 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N8 -> M2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M2 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	M2 -> N13 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_243.txt b/test/graphviz/scanned_hard/graphviz_243.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c2bd2fb7d5433bb4a6adc8e091bc2bb344467182
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_243.txt
@@ -0,0 +1,36 @@
+<Automated Assembly, connectedTo, Environmental Compliance>
+<Automated Assembly, connectedTo, Inventory Check>
+<Automated Assembly, connectedTo, Shipping>
+<Batch Tracking, connectedTo, Factory Layout Planning>
+<Component Sourcing, connectedTo, Final Testing>
+<Component Sourcing, connectedTo, Inventory Check>
+<Environmental Compliance, connectedTo, Shipping>
+<Factory Layout Planning, connectedTo, Work_in_Progress Monitoring>
+<Final Testing, connectedTo, Inventory Check>
+<Final Testing, connectedTo, Product Design>
+<Inventory Check, connectedTo, Environmental Compliance>
+<Logistics Planning, connectedTo, Batch Tracking>
+<Logistics Planning, connectedTo, Environmental Compliance>
+<Logistics Planning, connectedTo, Final Testing>
+<Logistics Planning, connectedTo, Parts Replacement>
+<Machine Calibration, plans, Automated Assembly>
+<Maintenance, connectedTo, Workflow Optimization>
+<Maintenance, partOf, Maintenance>
+<Packaging, connectedTo, Factory Layout Planning>
+<Packaging, partOf, Packaging>
+<Parts Replacement, connectedTo, Component Sourcing>
+<Parts Replacement, connectedTo, Final Testing>
+<Parts Replacement, connectedTo, Maintenance>
+<Product Design, connectedTo, Robotics Integration>
+<Product Design, connectedTo, Tool Path Generation>
+<Raw Material, connectedTo, Machine Calibration>
+<Robotics Integration, connectedTo, Safety Audit>
+<Robotics Integration, partOf, Robotics Integration>
+<Safety Audit, paints, Packaging>
+<Safety Audit, partOf, Safety Audit>
+<Supply Chain Synchronization, connectedTo, Raw Material>
+<Tool Path Generation, connectedTo, Batch Tracking>
+<Work_in_Progress Monitoring, connectedTo, Inventory Check>
+<Work_in_Progress Monitoring, connectedTo, Supply Chain Synchronization>
+<Workflow Optimization, connectedTo, Batch Tracking>
+<Workflow Optimization, partOf, Workflow Optimization>
diff --git a/test/graphviz/scanned_hard/graphviz_244.dot b/test/graphviz/scanned_hard/graphviz_244.dot
new file mode 100644
index 0000000000000000000000000000000000000000..74e150ce91229f556c2c531b02d8ac4651f28bbb
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_244.dot
@@ -0,0 +1,85 @@
+digraph {
+	rankdir=LR
+	N0 [label="Exam Conduct" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N1 [label="Internship Coordination" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	N2 [label="Course Material Preparation" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	N3 [label="Special Education Support" color="#FFF176" fillcolor="#FFFDE7" shape=folder style=filled]
+	N4 [label="Result Declaration" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N5 [label="Counseling Session" color="#73C6BC" fillcolor="#D0EFEE" shape=octagon style=filled]
+	N6 [label="Alumni Network Management" color="#FFF176" fillcolor="#FFFDE7" shape=diamond style=filled]
+	N7 [label="Disciplinary Action" color="#AED581" fillcolor="#F0F4C3" shape=folder style=filled]
+	N8 [label="Research Grant Application" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N9 [label="Graduation Approval" color="#73C6BC" fillcolor="#D0EFEE" shape=plaintext style=filled]
+	N10 [label="Career Services" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N11 [label="Advisory Committee Meeting" color="#FFF176" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N12 [label="Timetable Scheduling" color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+	N13 [label="Transcript Issuance" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N14 [label="Lecture Delivery" color="#AED581" fillcolor="#F0F4C3" shape=parallelogram style=filled]
+	N15 [label="Library Registration" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	S0 [label="" color="#FFF176" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFF176" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#FFF176" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFF176" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#AED581" fillcolor="#F0F4C3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#FFF176" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Online Learning Platform Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="School Accreditation" color="#AED581" fillcolor="#F0F4C3" shape=octagon style=filled]
+		nest0_1 [label="Study Abroad Program" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+		nest0_2 [label="Parent_Teacher Conference" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+		nest0_3 [label="Student Application" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Student Feedback Collection" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Course Selection" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+		nest1_1 [label="Attendance Tracking" color="#FFF176" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+		nest1_2 [label="Student Enrollment" color="#73C6BC" fillcolor="#D0EFEE" shape=folder style=filled]
+		nest1_0 -> nest1_1 [label=issues color="#AED581" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=accesses color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=publishes color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=updates color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=reports color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [label=approves color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N11 -> nest0_0 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest1_2 -> N4 [label=plans color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N8 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N14 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N13 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N10 -> S1 [color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N12 [color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N14 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N8 -> S2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S2 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N12 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N11 [color="#FFF176" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N9 -> M0 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N11 [color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N10 -> M1 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N12 [color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N6 -> M2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M2 -> N9 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_245.dot b/test/graphviz/scanned_hard/graphviz_245.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fbfe01d93832c5e1954dee09001668c055fbdeed
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_245.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=TD
+	N0 [label="Refund Process" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N1 [label="Payment Gateway Reconciliation" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N2 [label="User Account Management" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	N3 [label="Product Recommendation" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N4 [label="Data Analytics Reporting" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N5 [label="Delivery Rescheduling" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N6 [label="Subscription Service" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N7 [label="Delivery Tracking" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N8 [label="Order Confirmation" color="#FFB2A5" fillcolor="#FFDCD6" shape=folder style=filled]
+	N9 [label="Supplier Onboarding" color="#FFB2A5" fillcolor="#FFDCD6" shape=plaintext style=filled]
+	N10 [label="Social Media Integration" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N11 [label="Promotion Application" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	N12 [label="Inventory Update" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	N13 [label=Shipment color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	S1 [label="" color="#5C6BC0" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#FFB2A5" fillcolor="#FFDCD6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#673AB7" fillcolor="#D1C4E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#673AB7" fillcolor="#D1C4E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Live Chat Support" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Marketing Campaign Launch" color="#FFB2A5" fillcolor="#FFDCD6" shape=plaintext style=filled]
+		nest0_1 [label="Add to Cart" color="#FFB2A5" fillcolor="#FFDCD6" shape=diamond style=filled]
+		nest0_2 [label="Price Adjustment" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [label=updates color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Up_selling Offer" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Product Listing" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+		nest1_1 [label="Return Merchandise Authorization" color="#FFB2A5" fillcolor="#FFDCD6" shape=Mdiamond style=filled]
+		nest1_2 [label="Loyalty Points" color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+		nest1_3 [label="Customer Review" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+		nest1_0 -> nest1_1 [label=authenticates color="#FFB2A5" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [label=sorts color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest0_0 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N8 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest1_3 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> S1 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N11 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N10 -> S2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S2 -> N13 [label=confirms color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N12 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> M1 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N8 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N5 -> M2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M2 [label=reviews color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> M2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M2 -> N11 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_245.txt b/test/graphviz/scanned_hard/graphviz_245.txt
new file mode 100644
index 0000000000000000000000000000000000000000..672f565d27d7c41e4d400a7aa362db72d88d4bfb
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_245.txt
@@ -0,0 +1,39 @@
+<Add to Cart, partOf, Add to Cart>
+<Add to Cart, updates, Price Adjustment>
+<Customer Review, connectedTo, Social Media Integration>
+<Customer Review, partOf, Customer Review>
+<Data Analytics Reporting, connectedTo, Delivery Rescheduling>
+<Data Analytics Reporting, connectedTo, Promotion Application>
+<Data Analytics Reporting, connectedTo, Social Media Integration>
+<Data Analytics Reporting, connectedTo, Subscription Service>
+<Delivery Rescheduling, connectedTo, Order Confirmation>
+<Delivery Rescheduling, connectedTo, Promotion Application>
+<Delivery Rescheduling, connectedTo, Subscription Service>
+<Delivery Tracking, connectedTo, Order Confirmation>
+<Inventory Update, connectedTo, Shipment>
+<Loyalty Points, connectedTo, Customer Review>
+<Loyalty Points, partOf, Loyalty Points>
+<Marketing Campaign Launch, connectedTo, Add to Cart>
+<Marketing Campaign Launch, partOf, Marketing Campaign Launch>
+<Order Confirmation, connectedTo, Supplier Onboarding>
+<Payment Gateway Reconciliation, connectedTo, Promotion Application>
+<Payment Gateway Reconciliation, connectedTo, User Account Management>
+<Price Adjustment, connectedTo, Order Confirmation>
+<Price Adjustment, partOf, Price Adjustment>
+<Product Listing, authenticates, Return Merchandise Authorization>
+<Product Listing, partOf, Product Listing>
+<Product Recommendation, connectedTo, Data Analytics Reporting>
+<Product Recommendation, reviews, Promotion Application>
+<Promotion Application, connectedTo, Inventory Update>
+<Refund Process, connectedTo, Order Confirmation>
+<Refund Process, connectedTo, Payment Gateway Reconciliation>
+<Return Merchandise Authorization, connectedTo, Loyalty Points>
+<Return Merchandise Authorization, partOf, Return Merchandise Authorization>
+<Social Media Integration, confirms, Shipment>
+<Social Media Integration, connectedTo, Inventory Update>
+<Social Media Integration, sorts, Promotion Application>
+<Subscription Service, connectedTo, Delivery Tracking>
+<Subscription Service, connectedTo, Marketing Campaign Launch>
+<Subscription Service, connectedTo, Product Listing>
+<Supplier Onboarding, connectedTo, Social Media Integration>
+<User Account Management, connectedTo, Product Recommendation>
diff --git a/test/graphviz/scanned_hard/graphviz_246.dot b/test/graphviz/scanned_hard/graphviz_246.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c04e713918f502ddfe4e3948c039b6ffc35be41c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_246.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=TD
+	N0 [label="Route Optimization" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+	N1 [label="Electric Vehicle Charging" color="#F44336" fillcolor="#FFCDD2" shape=diamond style=filled]
+	N2 [label="Driver Allocation" color="#F44336" fillcolor="#FFCDD2" shape=Mdiamond style=filled]
+	N3 [label="Bus Stop Management" color="#F44336" fillcolor="#FFCDD2" shape=hexagon style=filled]
+	N4 [label="Vehicle Assignment" color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+	N5 [label="Emergency Landing" color="#F44336" fillcolor="#FFCDD2" shape=diamond style=filled]
+	N6 [label="Ticket Purchase" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N7 [label="Passenger Feedback" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N8 [label="Cargo Loading" color="#F44336" fillcolor="#FFCDD2" shape=hexagon style=filled]
+	N9 [label="Bridge Inspection" color="#F44336" fillcolor="#FFCDD2" shape=octagon style=filled]
+	N10 [label="Weather Impact Assessment" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+	S0 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#CDDC39" fillcolor="#E6EE9C" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#CDDC39" fillcolor="#E6EE9C" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Schedule Generation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Delay Alert" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+		nest0_1 [label="Train Dispatch" color="#F44336" fillcolor="#FFCDD2" shape=oval style=filled]
+		nest0_2 [label="Incident Report" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Air Traffic Control" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Route Diversion" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+		nest1_1 [label="Fare Calculation" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+		nest1_0 -> nest1_1 [label=predicts color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=surveys color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=tracks color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N9 [label=reports color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N9 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N7 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N0 -> S0 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	S0 -> N2 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N3 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N4 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N6 -> S1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N10 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N8 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N6 -> S2 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N9 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	S2 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S2 -> N10 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N5 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	N5 -> M1 [label=manages color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	M1 -> N7 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N6 -> M2 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N3 -> M2 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N2 -> M2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> M2 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	M2 -> N9 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_246.txt b/test/graphviz/scanned_hard/graphviz_246.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cf758d8404154debd42a469f5bf7e0a06bb162fb
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_246.txt
@@ -0,0 +1,36 @@
+<Bridge Inspection, connectedTo, Route Diversion>
+<Bridge Inspection, connectedTo, Weather Impact Assessment>
+<Bus Stop Management, connectedTo, Bridge Inspection>
+<Bus Stop Management, connectedTo, Delay Alert>
+<Bus Stop Management, connectedTo, Passenger Feedback>
+<Bus Stop Management, connectedTo, Vehicle Assignment>
+<Cargo Loading, tracks, Bridge Inspection>
+<Delay Alert, connectedTo, Train Dispatch>
+<Delay Alert, partOf, Delay Alert>
+<Driver Allocation, connectedTo, Bridge Inspection>
+<Driver Allocation, connectedTo, Bus Stop Management>
+<Electric Vehicle Charging, connectedTo, Bridge Inspection>
+<Electric Vehicle Charging, connectedTo, Driver Allocation>
+<Emergency Landing, connectedTo, Bridge Inspection>
+<Emergency Landing, connectedTo, Ticket Purchase>
+<Emergency Landing, manages, Passenger Feedback>
+<Fare Calculation, connectedTo, Passenger Feedback>
+<Fare Calculation, partOf, Fare Calculation>
+<Incident Report, partOf, Incident Report>
+<Incident Report, reports, Bridge Inspection>
+<Passenger Feedback, surveys, Cargo Loading>
+<Route Diversion, partOf, Route Diversion>
+<Route Diversion, predicts, Fare Calculation>
+<Route Optimization, connectedTo, Bus Stop Management>
+<Route Optimization, connectedTo, Driver Allocation>
+<Route Optimization, connectedTo, Electric Vehicle Charging>
+<Route Optimization, connectedTo, Passenger Feedback>
+<Route Optimization, connectedTo, Ticket Purchase>
+<Route Optimization, connectedTo, Vehicle Assignment>
+<Ticket Purchase, connectedTo, Bridge Inspection>
+<Ticket Purchase, connectedTo, Cargo Loading>
+<Ticket Purchase, connectedTo, Passenger Feedback>
+<Ticket Purchase, connectedTo, Weather Impact Assessment>
+<Train Dispatch, connectedTo, Incident Report>
+<Train Dispatch, partOf, Train Dispatch>
+<Vehicle Assignment, connectedTo, Emergency Landing>
diff --git a/test/graphviz/scanned_hard/graphviz_248.dot b/test/graphviz/scanned_hard/graphviz_248.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ce876a458ecc5004f3a65f5a24eefa443c10214e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_248.dot
@@ -0,0 +1,62 @@
+digraph {
+	rankdir=LR
+	N0 [label="Bail Hearing" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N1 [label="Witness Testimony" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N2 [label="Immigration Petition" color="#CDDC39" fillcolor="#E6EE9C" shape=octagon style=filled]
+	N3 [label=Sentencing color="#F7BEE0" fillcolor="#FAEBF3" shape=Mdiamond style=filled]
+	N4 [label="Document Drafting" color="#CDDC39" fillcolor="#E6EE9C" shape=hexagon style=filled]
+	N5 [label="Pro Bono Work" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+	N6 [label="Regulatory Compliance Review" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N7 [label="Legal Consultation" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	S0 [label="" color="#CDDC39" fillcolor="#E6EE9C" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#CDDC39" fillcolor="#E6EE9C" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#CDDC39" fillcolor="#E6EE9C" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Judgment Writing" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Case Filing" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+		nest0_1 [label="Plea Bargain" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+		nest0_2 [label="Appeal Submission" color="#DCE775" fillcolor="#F9FBE7" shape=folder style=filled]
+		nest0_3 [label="Client Interview" color="#F7BEE0" fillcolor="#FAEBF3" shape=oval style=filled]
+		nest0_0 -> nest0_1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [label=represents color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Bankruptcy Filing" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Jury Selection" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+		nest1_1 [label="Divorce Proceedings" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+		nest1_2 [label="Contract Review" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+		nest1_0 -> nest1_1 [label=certifies color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> nest0_0 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N3 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest1_0 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N1 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> S0 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N4 -> S1 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N7 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [label=files color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	M0 -> N3 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N6 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M2 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N1 -> M2 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N3 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_249.dot b/test/graphviz/scanned_hard/graphviz_249.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5e41cae115f67b34fb7cbdf5a54e4735b528b871
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_249.dot
@@ -0,0 +1,91 @@
+digraph {
+	rankdir=LR
+	N0 [label="Container Loading" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N1 [label="Customs Clearance" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N2 [label=Consolidation color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N3 [label="Route Assignment" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N4 [label="Invoice Matching" color="#00BCD4" fillcolor="#E0F7FA" shape=plaintext style=filled]
+	N5 [label="Warehouse Entry" color="#73C6BC" fillcolor="#D0EFEE" shape=octagon style=filled]
+	N6 [label="Air Cargo Handling" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N7 [label="Proof of Delivery" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N8 [label="Pickup Request" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N9 [label="Last_mile Dispatch" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N10 [label="Sorting Center" color="#73C6BC" fillcolor="#D0EFEE" shape=folder style=filled]
+	N11 [label="Delivery Confirmation" color="#00BCD4" fillcolor="#E0F7FA" shape=parallelogram style=filled]
+	N12 [label="Damage Reporting" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N13 [label="Order Picking" color="#73C6BC" fillcolor="#D0EFEE" shape=plaintext style=filled]
+	N14 [label="Route Optimization Software" color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+	N15 [label="Ocean Freight Management" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N16 [label="Barcode Scanning" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	S0 [label="" color="#00BCD4" fillcolor="#E0F7FA" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#00BCD4" fillcolor="#E0F7FA" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#00BCD4" fillcolor="#E0F7FA" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#00BCD4" fillcolor="#E0F7FA" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#AB47BC" fillcolor="#F3E5F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Cargo Tracking" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Cold Chain Management" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+		nest0_1 [label="Yard Management" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+		nest0_2 [label="Freight Booking" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Packing Process" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Delay Notification" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+		nest1_1 [label="Carrier Selection" color="#AB47BC" fillcolor="#F3E5F5" shape=plaintext style=filled]
+		nest1_2 [label="Fleet Maintenance Scheduling" color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+		nest1_3 [label=Cross_docking color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=delivers color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N15 -> N16 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N7 -> nest0_0 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N8 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest1_0 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	nest1_3 -> N13 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N2 -> S0 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	S0 -> N10 [label=scans color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N4 [label=manages color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N14 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N4 -> S1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N14 [label=secures color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N13 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	S1 -> N15 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N10 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N11 -> S2 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N14 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	S2 -> N15 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N13 [label=dispatches color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [label=analyzes color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N11 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N13 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N15 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> M1 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N8 -> M1 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N12 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N7 -> M2 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M2 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	M2 -> N9 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_25.dot b/test/graphviz/scanned_hard/graphviz_25.dot
new file mode 100644
index 0000000000000000000000000000000000000000..af6ee419345312e4e9003fa5d86d05e3a7ceb1f7
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_25.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=TD
+	N0 [label="Intellectual Property Protection" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N1 [label="Bioreactor Operation" color="#94C0C0" fillcolor="#CADEDE" shape=hexagon style=filled]
+	N2 [label="Protein Engineering" color="#94C0C0" fillcolor="#CADEDE" shape=oval style=filled]
+	N3 [label="Data Management and Analysis" color="#FFF8A6" fillcolor="#FFFDE0" shape=folder style=filled]
+	N4 [label="Cell Culture" color="#FFF8A6" fillcolor="#FFFDE0" shape=hexagon style=filled]
+	N5 [label=Bioimaging color="#FFB74D" fillcolor="#FFF3E0" shape=diamond style=filled]
+	N6 [label="Structural Biology" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N7 [label=Pharmacogenomics color="#FFB74D" fillcolor="#FFF3E0" shape=box style=filled]
+	N8 [label="Personalized Medicine Formulation" color="#FFF8A6" fillcolor="#FFFDE0" shape=octagon style=filled]
+	N9 [label="Assay Development" color="#94C0C0" fillcolor="#CADEDE" shape=parallelogram style=filled]
+	N10 [label="Vaccine Development" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N0 -> N1 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=designs color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=grows color="#FFF8A6" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=produces color="#FFF8A6" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=publishes color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=simulates color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=develops color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N5 [label=harvests color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_250.dot b/test/graphviz/scanned_hard/graphviz_250.dot
new file mode 100644
index 0000000000000000000000000000000000000000..19f3fe3a1add5e5679fe71437dd464ed801d3964
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_250.dot
@@ -0,0 +1,63 @@
+digraph {
+	rankdir=LR
+	N0 [label="Customer Support" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N1 [label="VoIP Service" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N2 [label="Base Station Installation" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N3 [label="Plan Selection" color="#388E3C" fillcolor="#C8E6C9" shape=oval style=filled]
+	N4 [label="Network Activation" color="#388E3C" fillcolor="#C8E6C9" shape=Mdiamond style=filled]
+	N5 [label="Network Upgrade" color="#388E3C" fillcolor="#C8E6C9" shape=folder style=filled]
+	N6 [label="Antenna Maintenance" color="#B8C0F5" fillcolor="#ECF0FD" shape=diamond style=filled]
+	N7 [label="Fiber Optic Deployment" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N8 [label="Technical Support Escalation" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N9 [label="Issue Resolution" color="#CFCFCF" fillcolor="#F6F6F6" shape=box style=filled]
+	N10 [label="Plan Renewal" color="#388E3C" fillcolor="#C8E6C9" shape=plaintext style=filled]
+	N11 [label="MMS Transmission" color="#CFCFCF" fillcolor="#F6F6F6" shape=box style=filled]
+	N12 [label="Mobile Top_up" color="#B8C0F5" fillcolor="#ECF0FD" shape=octagon style=filled]
+	N13 [label="IoT Device Connection" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	S0 [label="" color="#B8C0F5" fillcolor="#ECF0FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#388E3C" fillcolor="#C8E6C9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#B8C0F5" fillcolor="#ECF0FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Roaming Activation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Bill Generation" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+		nest0_1 [label="Network Security Monitoring" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="SIM Registration" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Troubleshooting Guide" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+		nest1_1 [label="Payment Received" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label=ports color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=detects color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [label=installs color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N6 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest1_0 [color="#CFCFCF" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N13 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	N5 -> S0 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	S0 -> N13 [color="#CFCFCF" dir=forward penwidth=1.5 style=dashed]
+	N4 -> S1 [color="#CFCFCF" dir=forward penwidth=1.5 style=solid]
+	S1 -> N12 [color="#CFCFCF" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N11 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N6 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_251.txt b/test/graphviz/scanned_hard/graphviz_251.txt
new file mode 100644
index 0000000000000000000000000000000000000000..eae2d444f96122b07277420f53575c0b80361d5d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_251.txt
@@ -0,0 +1,29 @@
+<Aquaculture Farming, connectedTo, Barn Cleaning>
+<Aquaculture Farming, irrigates, Seed Sowing>
+<Barn Cleaning, connectedTo, Harvesting>
+<Barn Cleaning, connectedTo, Market Transportation>
+<Barn Cleaning, prunes, Organic Certification>
+<Crop Monitoring, connectedTo, Packaging for Sale>
+<Crop Monitoring, propagates, Seed Sowing>
+<Disease Detection, connectedTo, Aquaculture Farming>
+<Disease Detection, connectedTo, Barn Cleaning>
+<Disease Detection, connectedTo, Harvesting>
+<Disease Detection, connectedTo, Seed Sowing>
+<Grain Drying, connectedTo, Disease Detection>
+<Grain Drying, partOf, Grain Drying>
+<Greenhouse Control, connectedTo, Barn Cleaning>
+<Livestock Feeding, connectedTo, Precision Farming>
+<Livestock Feeding, partOf, Livestock Feeding>
+<Market Transportation, connectedTo, Livestock Feeding>
+<Market Transportation, partOf, Market Transportation>
+<Organic Certification, connectedTo, Storage>
+<Organic Certification, partOf, Organic Certification>
+<Packaging for Sale, connectedTo, Barn Cleaning>
+<Packaging for Sale, connectedTo, Disease Detection>
+<Packaging for Sale, connectedTo, Harvesting>
+<Packaging for Sale, connectedTo, Seed Sowing>
+<Precision Farming, partOf, Precision Farming>
+<Precision Farming, stores, Aquaculture Farming>
+<Seed Sowing, connectedTo, Greenhouse Control>
+<Storage, connectedTo, Grain Drying>
+<Storage, partOf, Storage>
diff --git a/test/graphviz/scanned_hard/graphviz_253.dot b/test/graphviz/scanned_hard/graphviz_253.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2a44aeae012d7bb6326cc5c7f18026b57345fe8a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_253.dot
@@ -0,0 +1,85 @@
+digraph {
+	rankdir=BT
+	N0 [label="Brokerage License Renewal" color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N1 [label="Loan Pre_Approval" color="#AED581" fillcolor="#F0F4C3" shape=oval style=filled]
+	N2 [label="Tax Assessment" color="#7E57C2" fillcolor="#D1C4E9" shape=folder style=filled]
+	N3 [label="Site Visit Scheduling" color="#AED581" fillcolor="#F0F4C3" shape=oval style=filled]
+	N4 [label="Contract Review" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N5 [label="Ownership Transfer" color="#AED581" fillcolor="#F0F4C3" shape=hexagon style=filled]
+	N6 [label="Buyer Inquiry" color="#7E57C2" fillcolor="#D1C4E9" shape=octagon style=filled]
+	N7 [label="Open House Event" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N8 [label="Closing Meeting" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N9 [label="Property Appraisal" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N10 [label="Escrow Setup" color="#FFB2A5" fillcolor="#FFDCD6" shape=diamond style=filled]
+	N11 [label="Land Acquisition" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N12 [label="Property Marketing" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N13 [label="Property Valuation" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N14 [label="HOA Management" color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N15 [label="Maintenance Request" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N16 [label="Market Trend Analysis" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	S0 [label="" color="#FFB2A5" fillcolor="#FFDCD6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFB2A5" fillcolor="#FFDCD6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#AED581" fillcolor="#F0F4C3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#7E57C2" fillcolor="#D1C4E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFB2A5" fillcolor="#FFDCD6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#7E57C2" fillcolor="#D1C4E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Building Permit Application" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Property Listing" color="#AED581" fillcolor="#F0F4C3" shape=diamond style=filled]
+		nest0_1 [label="Commission Distribution" color="#7E57C2" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+		nest0_2 [label="Offer Submission" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+		nest0_3 [label="Property Insurance" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [label=constructs color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Home Inspection" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Virtual Tour Creation" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+		nest1_1 [label="Legal Verification" color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+		nest1_0 -> nest1_1 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#FFB2A5" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [label=complies color="#000000" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N15 -> N16 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest0_0 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N8 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N2 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N11 -> S0 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	S0 -> N16 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N13 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N15 [color="#FFB2A5" dir=forward penwidth=1.5 style=solid]
+	S0 -> N14 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N6 -> S1 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N14 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N15 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N13 -> S2 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N16 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N15 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M0 [label=advises color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> M0 [color="#FFB2A5" dir=forward penwidth=1.5 style=solid]
+	M0 -> N11 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M1 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N6 -> M1 [color="#FFB2A5" dir=forward penwidth=1.5 style=solid]
+	N13 -> M1 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N15 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M2 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N5 -> M2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N9 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_253.txt b/test/graphviz/scanned_hard/graphviz_253.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a6c705d4cad6cbded0439ad47830ec2779272e76
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_253.txt
@@ -0,0 +1,43 @@
+<Brokerage License Renewal, connectedTo, Loan Pre_Approval>
+<Buyer Inquiry, connectedTo, HOA Management>
+<Buyer Inquiry, connectedTo, Maintenance Request>
+<Buyer Inquiry, connectedTo, Open House Event>
+<Closing Meeting, connectedTo, Land Acquisition>
+<Closing Meeting, connectedTo, Property Appraisal>
+<Commission Distribution, connectedTo, Offer Submission>
+<Commission Distribution, partOf, Commission Distribution>
+<Contract Review, connectedTo, Ownership Transfer>
+<Escrow Setup, connectedTo, Land Acquisition>
+<HOA Management, connectedTo, Maintenance Request>
+<Land Acquisition, complies, Property Marketing>
+<Land Acquisition, connectedTo, HOA Management>
+<Land Acquisition, connectedTo, Maintenance Request>
+<Land Acquisition, connectedTo, Market Trend Analysis>
+<Land Acquisition, connectedTo, Property Valuation>
+<Legal Verification, connectedTo, Tax Assessment>
+<Legal Verification, partOf, Legal Verification>
+<Loan Pre_Approval, connectedTo, Tax Assessment>
+<Maintenance Request, connectedTo, Market Trend Analysis>
+<Offer Submission, constructs, Property Insurance>
+<Offer Submission, partOf, Offer Submission>
+<Open House Event, advises, Land Acquisition>
+<Open House Event, connectedTo, Closing Meeting>
+<Ownership Transfer, connectedTo, Buyer Inquiry>
+<Ownership Transfer, connectedTo, Property Appraisal>
+<Property Appraisal, connectedTo, Escrow Setup>
+<Property Insurance, connectedTo, Closing Meeting>
+<Property Insurance, partOf, Property Insurance>
+<Property Listing, connectedTo, Commission Distribution>
+<Property Listing, partOf, Property Listing>
+<Property Marketing, connectedTo, Property Valuation>
+<Property Valuation, connectedTo, HOA Management>
+<Property Valuation, connectedTo, Maintenance Request>
+<Property Valuation, connectedTo, Market Trend Analysis>
+<Site Visit Scheduling, connectedTo, Contract Review>
+<Site Visit Scheduling, connectedTo, Property Appraisal>
+<Site Visit Scheduling, connectedTo, Property Listing>
+<Site Visit Scheduling, connectedTo, Virtual Tour Creation>
+<Tax Assessment, connectedTo, Maintenance Request>
+<Tax Assessment, connectedTo, Site Visit Scheduling>
+<Virtual Tour Creation, connectedTo, Legal Verification>
+<Virtual Tour Creation, partOf, Virtual Tour Creation>
diff --git a/test/graphviz/scanned_hard/graphviz_254.dot b/test/graphviz/scanned_hard/graphviz_254.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1aac26bb956bd6815c68a5327bc56421b90fb90e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_254.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=LR
+	N0 [label="Law Enforcement Database Check" color="#607D8B" fillcolor="#CFD8DC" shape=ellipse style=filled]
+	N1 [label="First Aid Deployment" color="#DCE775" fillcolor="#FCFCE7" shape=plaintext style=filled]
+	N2 [label="Hazard Detection" color="#DCE775" fillcolor="#FCFCE7" shape=hexagon style=filled]
+	N3 [label="Disaster Relief Coordination" color="#B0C5CD" fillcolor="#DFE7EB" shape=oval style=filled]
+	N4 [label="Suspect Identification" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	N5 [label="Shelter Setup" color="#DCE775" fillcolor="#FCFCE7" shape=plaintext style=filled]
+	N6 [label="Crime Prevention Programs" color="#DCE775" fillcolor="#FCFCE7" shape=parallelogram style=filled]
+	N7 [label="Surveillance Review" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N8 [label="Victim Support Services" color="#DCE775" fillcolor="#FCFCE7" shape=octagon style=filled]
+	N9 [label="Community Outreach" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N10 [label="Forensic Analysis" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N11 [label="Public Warning" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N12 [label="Threat Assessment" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	S0 [label="" color="#B0C5CD" fillcolor="#DFE7EB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#B0C5CD" fillcolor="#DFE7EB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#607D8B" fillcolor="#CFD8DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#DCE775" fillcolor="#FCFCE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Resource Allocation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Emergency Dispatch" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+		nest0_1 [label="Evidence Collection" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+		nest0_2 [label="Public Safety Training" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+		nest0_3 [label="Incident Command System Activation" color="#607D8B" fillcolor="#CFD8DC" shape=diamond style=filled]
+		nest0_0 -> nest0_1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Evacuation Planning" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Drug Interdiction" color="#607D8B" fillcolor="#CFD8DC" shape=oval style=filled]
+		nest1_1 [label="Cybersecurity Threat Response" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+		nest1_0 -> nest1_1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=monitors color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest0_0 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N1 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest1_0 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N4 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N7 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N10 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	S0 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> S1 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#B0C5CD" dir=forward penwidth=1.5 style=solid]
+	S1 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N6 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N0 -> M2 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N1 -> M2 [label="responds to" color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	M2 -> N7 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_256.dot b/test/graphviz/scanned_hard/graphviz_256.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a14fba25082f14f10737ee178ec2b2a569682b6d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_256.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=RL
+	N0 [label="Conservation Easement" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N1 [label="Waste Collection" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	N2 [label="Climate Modeling" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N3 [label="Stormwater Management" color="#9C27B0" fillcolor="#E1BEE7" shape=folder style=filled]
+	N4 [label="Emission Reporting" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N5 [label="Citizen Science Initiative" color="#9C27B0" fillcolor="#E1BEE7" shape=folder style=filled]
+	N6 [label="Environmental Impact Assessment" color="#FF5722" fillcolor="#FFCCBC" shape=plaintext style=filled]
+	N7 [label="Ecological Footprint Analysis" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+	N8 [label="Coastal Erosion Control" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N9 [label="Sustainable Agriculture Practices" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	N10 [label="Resource Recovery" color="#9C27B0" fillcolor="#E1BEE7" shape=diamond style=filled]
+	N11 [label="Energy Audit" color="#DCE775" fillcolor="#FCFCE7" shape=octagon style=filled]
+	N12 [label="Public Awareness Campaign" color="#9C27B0" fillcolor="#E1BEE7" shape=hexagon style=filled]
+	N13 [label="Groundwater Monitoring" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	S0 [label="" color="#9C27B0" fillcolor="#E1BEE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FF5722" fillcolor="#FFCCBC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FF5722" fillcolor="#FFCCBC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#9C27B0" fillcolor="#E1BEE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Recycling Process" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Renewable Energy Grid Integration" color="#9C27B0" fillcolor="#E1BEE7" shape=folder style=filled]
+		nest0_1 [label="Waste Water Treatment" color="#9C27B0" fillcolor="#E1BEE7" shape=Mdiamond style=filled]
+		nest0_2 [label="Carbon Footprint Calculation" color="#DCE775" fillcolor="#FCFCE7" shape=folder style=filled]
+		nest0_0 -> nest0_1 [label=recycles color="#FF5722" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Biodiversity Conservation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Air Quality Monitoring" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+		nest1_1 [label="Environmental Education Programs" color="#9C27B0" fillcolor="#E1BEE7" shape=hexagon style=filled]
+		nest1_2 [label="Environmental Research" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=adapts color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N4 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N7 -> nest1_0 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N12 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N10 -> S0 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N12 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	S0 -> N13 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N9 -> S1 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	S1 -> N11 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N12 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N5 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M1 -> N8 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N1 -> M2 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M2 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N3 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_257.dot b/test/graphviz/scanned_hard/graphviz_257.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6db16a391d1d33c93d1d35bd71abc10a86eb1e50
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_257.dot
@@ -0,0 +1,66 @@
+digraph {
+	rankdir=RL
+	N0 [label="Social Security Administration" color="#9C27B0" fillcolor="#E1BEE7" shape=ellipse style=filled]
+	N1 [label="Border Control" color="#66BB6A" fillcolor="#E8F5E9" shape=plaintext style=filled]
+	N2 [label="Passport Issuance" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	N3 [label="Business Licensing" color="#9C27B0" fillcolor="#E1BEE7" shape=hexagon style=filled]
+	N4 [label="Urban Planning" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N5 [label="Interdepartmental Approval" color="#9C27B0" fillcolor="#E1BEE7" shape=parallelogram style=filled]
+	N6 [label="Emergency Preparedness" color="#9C27B0" fillcolor="#E1BEE7" shape=folder style=filled]
+	N7 [label="Infrastructure Planning" color="#795548" fillcolor="#D7CCC8" shape=ellipse style=filled]
+	S0 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#9C27B0" fillcolor="#E1BEE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#9C27B0" fillcolor="#E1BEE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Public Consultation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Public Works Maintenance" color="#795548" fillcolor="#D7CCC8" shape=box style=filled]
+		nest0_1 [label="Public Records Request" color="#9C27B0" fillcolor="#E1BEE7" shape=parallelogram style=filled]
+		nest0_2 [label="Policy Drafting" color="#9C27B0" fillcolor="#E1BEE7" shape=oval style=filled]
+		nest0_0 -> nest0_1 [color="#795548" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Citizen Feedback" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Transparency Audit" color="#9C27B0" fillcolor="#E1BEE7" shape=plaintext style=filled]
+		nest1_1 [label="Diplomatic Negotiation" color="#795548" fillcolor="#D7CCC8" shape=ellipse style=filled]
+		nest1_2 [label="Data Publishing" color="#795548" fillcolor="#D7CCC8" shape=ellipse style=filled]
+		nest1_3 [label="Tax Filing" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+		nest1_2 -> nest1_3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [label=governs color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#795548" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=audits color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest0_0 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N1 [color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest1_0 [color="#795548" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N6 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	N2 -> S0 [color="#795548" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N7 [color="#795548" dir=forward penwidth=1.5 style=solid]
+	S0 -> N4 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S1 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	S1 -> N7 [label=executes color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	S1 -> N5 [label=responds color="#795548" dir=forward penwidth=1.5 style=solid]
+	N3 -> S2 [color="#795548" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N6 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#795548" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#795548" dir=forward penwidth=1.5 style=solid]
+	M0 -> N4 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M1 [color="#795548" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	M1 -> N4 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_257.txt b/test/graphviz/scanned_hard/graphviz_257.txt
new file mode 100644
index 0000000000000000000000000000000000000000..632ee42668627651c71e449c88c3770516dd81eb
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_257.txt
@@ -0,0 +1,33 @@
+<Border Control, connectedTo, Passport Issuance>
+<Border Control, connectedTo, Urban Planning>
+<Business Licensing, connectedTo, Emergency Preparedness>
+<Business Licensing, connectedTo, Infrastructure Planning>
+<Business Licensing, connectedTo, Interdepartmental Approval>
+<Business Licensing, connectedTo, Urban Planning>
+<Business Licensing, executes, Infrastructure Planning>
+<Business Licensing, responds, Interdepartmental Approval>
+<Data Publishing, connectedTo, Tax Filing>
+<Data Publishing, partOf, Data Publishing>
+<Diplomatic Negotiation, connectedTo, Data Publishing>
+<Diplomatic Negotiation, partOf, Diplomatic Negotiation>
+<Emergency Preparedness, connectedTo, Infrastructure Planning>
+<Emergency Preparedness, connectedTo, Transparency Audit>
+<Interdepartmental Approval, connectedTo, Emergency Preparedness>
+<Interdepartmental Approval, connectedTo, Public Works Maintenance>
+<Passport Issuance, audits, Business Licensing>
+<Passport Issuance, connectedTo, Infrastructure Planning>
+<Passport Issuance, connectedTo, Interdepartmental Approval>
+<Passport Issuance, connectedTo, Urban Planning>
+<Policy Drafting, connectedTo, Border Control>
+<Policy Drafting, partOf, Policy Drafting>
+<Public Records Request, connectedTo, Policy Drafting>
+<Public Records Request, partOf, Public Records Request>
+<Public Works Maintenance, connectedTo, Public Records Request>
+<Public Works Maintenance, partOf, Public Works Maintenance>
+<Social Security Administration, connectedTo, Urban Planning>
+<Social Security Administration, governs, Border Control>
+<Tax Filing, connectedTo, Emergency Preparedness>
+<Tax Filing, partOf, Tax Filing>
+<Transparency Audit, connectedTo, Diplomatic Negotiation>
+<Transparency Audit, partOf, Transparency Audit>
+<Urban Planning, connectedTo, Interdepartmental Approval>
diff --git a/test/graphviz/scanned_hard/graphviz_259.dot b/test/graphviz/scanned_hard/graphviz_259.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1e9fc8f1069bbf99c812cff104e54030eaf9a37e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_259.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=TD
+	N0 [label="Electric Vehicle Battery Production" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N1 [label="Vehicle Connectivity" color="#E91E63" fillcolor="#FCE4EC" shape=oval style=filled]
+	N2 [label="Diagnostic Trouble Code Reading" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+	N3 [label="Vehicle Financing" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N4 [label="Vehicle Registration" color="#F7BEE0" fillcolor="#FAEBF3" shape=diamond style=filled]
+	N5 [label="Robotics in Production" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+	N6 [label="Tire Rotation" color="#F7BEE0" fillcolor="#FAEBF3" shape=plaintext style=filled]
+	N7 [label="Fuel Efficiency Check" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N8 [label="Warranty Activation" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N9 [label="Software Calibration" color="#7986CB" fillcolor="#E8EAF6" shape=Mdiamond style=filled]
+	N10 [label="Brake System Check" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	S0 [label="" color="#E91E63" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#E91E63" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#E91E63" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Body Shop Repair" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Fluid Level Check" color="#7986CB" fillcolor="#E8EAF6" shape=diamond style=filled]
+		nest0_1 [label="Customer Test Drive" color="#F7BEE0" fillcolor="#FAEBF3" shape=octagon style=filled]
+		nest0_2 [label="Oil Change" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+		nest0_3 [label="Emission Testing" color="#F7BEE0" fillcolor="#FAEBF3" shape=octagon style=filled]
+		nest0_0 -> nest0_1 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Parts Distribution" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Quality Assurance" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+		nest1_1 [label="Road Testing" color="#E91E63" fillcolor="#FCE4EC" shape=folder style=filled]
+		nest1_2 [label="Engine Installation" color="#F7BEE0" fillcolor="#FAEBF3" shape=hexagon style=filled]
+		nest1_3 [label="Recycling of Vehicle Components" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+		nest1_2 -> nest1_3 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label=schedules color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest1_0 [label=designs color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [label=insures color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N3 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N4 -> S1 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N10 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	S1 -> N9 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	S1 -> N7 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N6 -> M0 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	M0 -> N9 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N6 -> M1 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M1 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N8 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N5 -> M2 [label=diagnoses color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> M2 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	M2 -> N10 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_259.txt b/test/graphviz/scanned_hard/graphviz_259.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fac550d5a279852c1648ef95d62b3bec0743e657
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_259.txt
@@ -0,0 +1,39 @@
+<Customer Test Drive, connectedTo, Oil Change>
+<Customer Test Drive, partOf, Customer Test Drive>
+<Diagnostic Trouble Code Reading, connectedTo, Vehicle Financing>
+<Electric Vehicle Battery Production, schedules, Vehicle Connectivity>
+<Emission Testing, connectedTo, Diagnostic Trouble Code Reading>
+<Emission Testing, partOf, Emission Testing>
+<Engine Installation, connectedTo, Recycling of Vehicle Components>
+<Engine Installation, partOf, Engine Installation>
+<Fluid Level Check, connectedTo, Customer Test Drive>
+<Fluid Level Check, partOf, Fluid Level Check>
+<Fuel Efficiency Check, connectedTo, Warranty Activation>
+<Oil Change, connectedTo, Emission Testing>
+<Oil Change, partOf, Oil Change>
+<Quality Assurance, connectedTo, Road Testing>
+<Quality Assurance, partOf, Quality Assurance>
+<Recycling of Vehicle Components, connectedTo, Brake System Check>
+<Recycling of Vehicle Components, partOf, Recycling of Vehicle Components>
+<Road Testing, connectedTo, Engine Installation>
+<Road Testing, partOf, Road Testing>
+<Robotics in Production, connectedTo, Tire Rotation>
+<Robotics in Production, diagnoses, Brake System Check>
+<Software Calibration, connectedTo, Brake System Check>
+<Software Calibration, connectedTo, Fluid Level Check>
+<Tire Rotation, connectedTo, Fuel Efficiency Check>
+<Tire Rotation, connectedTo, Software Calibration>
+<Tire Rotation, connectedTo, Warranty Activation>
+<Tire Rotation, designs, Quality Assurance>
+<Vehicle Connectivity, connectedTo, Diagnostic Trouble Code Reading>
+<Vehicle Connectivity, connectedTo, Tire Rotation>
+<Vehicle Connectivity, connectedTo, Vehicle Financing>
+<Vehicle Connectivity, insures, Warranty Activation>
+<Vehicle Financing, connectedTo, Vehicle Registration>
+<Vehicle Registration, connectedTo, Brake System Check>
+<Vehicle Registration, connectedTo, Fuel Efficiency Check>
+<Vehicle Registration, connectedTo, Robotics in Production>
+<Vehicle Registration, connectedTo, Software Calibration>
+<Vehicle Registration, connectedTo, Warranty Activation>
+<Warranty Activation, connectedTo, Brake System Check>
+<Warranty Activation, connectedTo, Software Calibration>
diff --git a/test/graphviz/scanned_hard/graphviz_26.dot b/test/graphviz/scanned_hard/graphviz_26.dot
new file mode 100644
index 0000000000000000000000000000000000000000..62ed344901b0cf7da370c6ef9fba90a39457ae25
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_26.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=RL
+	N0 [label="Clinical Trial Phases" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N1 [label="Drug Repurposing" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N2 [label="Cold Chain Logistics" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N3 [label=Pharmacovigilance color="#CDDC39" fillcolor="#E6EE9C" shape=folder style=filled]
+	N4 [label="Good Manufacturing Practices" color="#CDDC39" fillcolor="#E6EE9C" shape=Mdiamond style=filled]
+	N5 [label="Cleanroom Operations" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N6 [label="Manufacturing Scale_up" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N7 [label="Solid Dosage Formulation" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N0 -> N1 [label=innovates color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=analyzes color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=advises color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=stores color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_260.txt b/test/graphviz/scanned_hard/graphviz_260.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9a65d8c68dd48bfdf8a062be71692a156acb977f
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_260.txt
@@ -0,0 +1,40 @@
+<Aircraft Maintenance Log, connectedTo, Hypersonic Flight Testing>
+<Aircraft Maintenance Log, partOf, Aircraft Maintenance Log>
+<Aircraft Manufacturing, connectedTo, System Reboot>
+<Astronaut Training, connectedTo, Drone System Development>
+<Aviation Safety Audit, connectedTo, Aircraft Manufacturing>
+<Aviation Safety Audit, connectedTo, Re_entry Vehicle Design>
+<Avionics Installation, connectedTo, Telemetry Setup>
+<Avionics Installation, partOf, Avionics Installation>
+<Drone System Development, connectedTo, Rocket Assembly>
+<Drone System Development, connectedTo, Satellite Configuration>
+<Drone System Development, monitors, Countdown Sequence>
+<Emergency Protocols, tests, Space Debris Tracking>
+<Ground Station Coordination, connectedTo, Aircraft Maintenance Log>
+<Ground Station Coordination, connectedTo, Launch Execution>
+<Ground Station Coordination, connectedTo, Satellite Configuration>
+<Hypersonic Flight Testing, connectedTo, Avionics Installation>
+<Hypersonic Flight Testing, partOf, Hypersonic Flight Testing>
+<International Space Station Resupply, connectedTo, Thermal Shield Testing>
+<Launch Execution, connectedTo, Rocket Stage Separation>
+<Launch Execution, partOf, Launch Execution>
+<Mission Planning, connectedTo, International Space Station Resupply>
+<New Material Development, connectedTo, Ground Station Coordination>
+<Re_entry Vehicle Design, connectedTo, Aircraft Manufacturing>
+<Rocket Assembly, connectedTo, Countdown Sequence>
+<Rocket Assembly, connectedTo, Ground Station Coordination>
+<Rocket Assembly, connectedTo, New Material Development>
+<Rocket Stage Separation, connectedTo, Ground Station Coordination>
+<Rocket Stage Separation, partOf, Rocket Stage Separation>
+<Runway Inspection, connectedTo, Aviation Safety Audit>
+<Satellite Configuration, connectedTo, Countdown Sequence>
+<Space Debris Tracking, connectedTo, Aircraft Manufacturing>
+<Space Debris Tracking, connectedTo, Astronaut Training>
+<Space Debris Tracking, connectedTo, Structural Analysis>
+<Structural Analysis, connectedTo, Aircraft Manufacturing>
+<Structural Analysis, connectedTo, Astronaut Training>
+<Structural Analysis, connectedTo, Runway Inspection>
+<System Reboot, connectedTo, Mission Planning>
+<Telemetry Setup, partOf, Telemetry Setup>
+<Telemetry Setup, recovers, Satellite Configuration>
+<Thermal Shield Testing, connectedTo, Astronaut Training>
diff --git a/test/graphviz/scanned_hard/graphviz_261.txt b/test/graphviz/scanned_hard/graphviz_261.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c1239154882b84599ebc655127428f8ae276b07c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_261.txt
@@ -0,0 +1,35 @@
+<Actuarial Analysis, connectedTo, Investment Management for Reserves>
+<Actuarial Analysis, partOf, Actuarial Analysis>
+<Broker Management, connectedTo, Customer Onboarding>
+<Broker Management, connectedTo, Fraud Investigation>
+<Broker Management, connectedTo, Investment Management for Reserves>
+<Broker Management, connectedTo, Product Development>
+<Broker Management, connectedTo, Third_Party Administrator Liaison>
+<Claim Adjustment, connectedTo, Actuarial Analysis>
+<Claim Adjustment, partOf, Claim Adjustment>
+<Claim Submission, connectedTo, Claim Adjustment>
+<Claim Submission, partOf, Claim Submission>
+<Coverage Review, connectedTo, Property Damage Assessment>
+<Customer Onboarding, connectedTo, Subrogation>
+<Cyber Insurance Policy, connectedTo, Fraud Investigation>
+<Cyber Insurance Policy, connectedTo, Loss Prevention>
+<Cyber Insurance Policy, connectedTo, Third_Party Administrator Liaison>
+<Data Security, connectedTo, Life Insurance Underwriting>
+<Data Security, partOf, Data Security>
+<Fraud Investigation, connectedTo, Customer Onboarding>
+<Fraud Investigation, connectedTo, Third_Party Administrator Liaison>
+<Investment Management for Reserves, connectedTo, Customer Onboarding>
+<Life Insurance Underwriting, connectedTo, Customer Onboarding>
+<Life Insurance Underwriting, partOf, Life Insurance Underwriting>
+<Loss Prevention, connectedTo, Data Security>
+<Loss Prevention, partOf, Loss Prevention>
+<Product Development, connectedTo, Customer Onboarding>
+<Product Development, connectedTo, Cyber Insurance Policy>
+<Product Development, connectedTo, Third_Party Administrator Liaison>
+<Property Damage Assessment, connectedTo, Broker Management>
+<Property Damage Assessment, reviews, Claim Submission>
+<Subrogation, connectedTo, Payment Processing>
+<Third_Party Administrator Liaison, connectedTo, Customer Onboarding>
+<Third_Party Administrator Liaison, connectedTo, Investment Management for Reserves>
+<Third_Party Administrator Liaison, connectedTo, Payment Processing>
+<Third_Party Administrator Liaison, connectedTo, Subrogation>
diff --git a/test/graphviz/scanned_hard/graphviz_263.dot b/test/graphviz/scanned_hard/graphviz_263.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bbeba44f1f902e46150c848b22c801168650396b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_263.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=BT
+	N0 [label="Guest Access Management" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N1 [label="Leak Detection" color="#26A69A" fillcolor="#E0F2F1" shape=diamond style=filled]
+	N2 [label="Emergency Service Connection" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N3 [label="Doorbell Camera Alert" color="#FFA726" fillcolor="#FFF3E0" shape=folder style=filled]
+	N4 [label="Door Lock Management" color="#26A69A" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N5 [label="Child Monitoring" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	N6 [label="Personalized Comfort Settings" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N7 [label="Geofencing Trigger" color="#9C27B0" fillcolor="#E1BEE7" shape=plaintext style=filled]
+	N8 [label="Security Alert" color="#9C27B0" fillcolor="#E1BEE7" shape=ellipse style=filled]
+	N9 [label="Routine Scheduling" color="#9C27B0" fillcolor="#E1BEE7" shape=ellipse style=filled]
+	N10 [label="Window Sensor Monitoring" color="#26A69A" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N11 [label="Lighting Automation" color="#26A69A" fillcolor="#E0F2F1" shape=octagon style=filled]
+	N12 [label="Device Pairing" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+	N13 [label="Smart Mirror Functionality" color="#9C27B0" fillcolor="#E1BEE7" shape=parallelogram style=filled]
+	N14 [label="Energy Consumption Optimization" color="#9C27B0" fillcolor="#E1BEE7" shape=Mdiamond style=filled]
+	N15 [label="Air Quality Monitoring" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	S0 [label="" color="#9C27B0" fillcolor="#E1BEE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFA726" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#9C27B0" fillcolor="#E1BEE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFA726" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#26A69A" fillcolor="#E0F2F1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Video Surveillance" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Power Outage Notification" color="#26A69A" fillcolor="#E0F2F1" shape=octagon style=filled]
+		nest0_1 [label="Garage Door Control" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+		nest0_0 -> nest0_1 [label=streams color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Energy Monitoring" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="App Control" color="#FFA726" fillcolor="#FFF3E0" shape=hexagon style=filled]
+		nest1_1 [label="Remote Control" color="#9C27B0" fillcolor="#E1BEE7" shape=plaintext style=filled]
+		nest1_2 [label="Pet Feeder Automation" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+		nest1_3 [label="Curtain Automation" color="#9C27B0" fillcolor="#E1BEE7" shape=parallelogram style=filled]
+		nest1_0 -> nest1_1 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+		nest1_2 -> nest1_3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=diagnoses color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#FFA726" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N14 -> N15 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N11 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N7 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N13 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N8 -> S0 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N15 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N12 [color="#FFA726" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N10 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N2 -> S1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N13 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N7 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N4 -> S2 [color="#FFA726" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N13 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S2 -> N11 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N7 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#FFA726" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_265.dot b/test/graphviz/scanned_hard/graphviz_265.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2cf003d6cfcca26a81bd444ada434e8f256f5b5a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_265.dot
@@ -0,0 +1,57 @@
+digraph {
+	rankdir=BT
+	N0 [label="Clinical Trial Design" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N1 [label="Drug Repurposing" color="#B8C0F5" fillcolor="#ECF0FD" shape=Mdiamond style=filled]
+	N2 [label="Intellectual Property Protection" color="#B8C0F5" fillcolor="#ECF0FD" shape=hexagon style=filled]
+	N3 [label="Biomanufacturing Scale_up" color="#B8C0F5" fillcolor="#ECF0FD" shape=octagon style=filled]
+	N4 [label="Clinical Data Interpretation" color="#B8C0F5" fillcolor="#ECF0FD" shape=Mdiamond style=filled]
+	N5 [label="Monoclonal Antibody Production" color="#94C0C0" fillcolor="#CADEDE" shape=folder style=filled]
+	N6 [label="Cell Culture" color="#94C0C0" fillcolor="#CADEDE" shape=diamond style=filled]
+	N7 [label="Synthetic Biology Design" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N8 [label="Vaccine Development" color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+	N9 [label="Structural Biology" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N10 [label="Nanobiotechnology Application" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N11 [label="Stem Cell Research" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	S0 [label="" color="#94C0C0" fillcolor="#CADEDE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Ethical Review Board Approval" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Microbial Fermentation" color="#CB9BE1" fillcolor="#F2E6F5" shape=oval style=filled]
+		nest0_1 [label="Personalized Medicine Formulation" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+		nest0_2 [label="Computational Biology Modeling" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label=Pharmacogenomics labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Protein Engineering" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+		nest1_1 [label="Biomarker Discovery" color="#B8C0F5" fillcolor="#ECF0FD" shape=parallelogram style=filled]
+		nest1_0 -> nest1_1 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#CB9BE1" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=synthesizes color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#CB9BE1" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#CB9BE1" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N1 -> nest0_0 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N5 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N7 [label=grows color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N6 -> S0 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [label=simulates color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N11 [color="#CB9BE1" dir=forward penwidth=1.5 style=solid]
+	N1 -> N6 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	nest1_0 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest1_0 -> N5 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N9 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N0 -> nest1_1 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N10 -> N2 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_266.dot b/test/graphviz/scanned_hard/graphviz_266.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ac4dcbd6df3a0b4ee68a5aabe60d376d7f715b31
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_266.dot
@@ -0,0 +1,83 @@
+digraph {
+	rankdir=RL
+	N0 [label="Patent Application" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	N1 [label="Solid Dosage Formulation" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N2 [label="Injectable Drug Manufacturing" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N3 [label="Post_Approval Commitment Tracking" color="#FFCC7A" fillcolor="#FFF6D9" shape=folder style=filled]
+	N4 [label="Batch Release" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	N5 [label="Patient Adherence Programs" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+	N6 [label="Global Regulatory Affairs" color="#FFCC7A" fillcolor="#FFF6D9" shape=hexagon style=filled]
+	N7 [label="Audit Management" color="#FFCC7A" fillcolor="#FFF6D9" shape=hexagon style=filled]
+	N8 [label="Quality Control" color="#DCE775" fillcolor="#FCFCE7" shape=plaintext style=filled]
+	N9 [label="Sales and Marketing Strategy" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N10 [label="Preclinical Testing" color="#FFCC7A" fillcolor="#FFF6D9" shape=octagon style=filled]
+	N11 [label="Adverse Event Reporting" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N12 [label="Intellectual Property Litigation" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	N13 [label=Pharmacovigilance color="#66BB6A" fillcolor="#E8F5E9" shape=hexagon style=filled]
+	N14 [label="Regulatory Approval" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	S0 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Sterile Product Filling" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Post_Marketing Surveillance" color="#66BB6A" fillcolor="#E8F5E9" shape=parallelogram style=filled]
+		nest0_1 [label=Packaging color="#DCE775" fillcolor="#FCFCE7" shape=hexagon style=filled]
+		nest0_2 [label="Supply Chain Management" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label=Distribution labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Drug Repurposing" color="#DCE775" fillcolor="#FCFCE7" shape=Mdiamond style=filled]
+		nest1_1 [label="Clinical Supply Management" color="#FFCC7A" fillcolor="#FFF6D9" shape=Mdiamond style=filled]
+		nest1_0 -> nest1_1 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=monitors color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N12 -> nest0_0 [color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N13 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest1_0 [color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	nest1_1 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> S0 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N13 [label=discovers color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N12 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S1 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N12 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	S1 -> N8 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	S1 -> N5 [label=consults color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N14 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N1 -> S2 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	S2 -> N5 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	S2 -> N7 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N13 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	S2 -> N6 [color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N6 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N5 -> M1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	M1 -> N11 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N2 -> M2 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M2 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N3 -> M2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> M2 [label=analyzes color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N7 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_267.dot b/test/graphviz/scanned_hard/graphviz_267.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fdc321cc80876f571d13c59e49041672f1095e15
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_267.dot
@@ -0,0 +1,64 @@
+digraph {
+	rankdir=RL
+	N0 [label="Drone Control" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N1 [label="Industrial Automation" color="#73C6BC" fillcolor="#D0EFEE" shape=plaintext style=filled]
+	N2 [label="Wireless Communication" color="#FFC107" fillcolor="#FFECB3" shape=folder style=filled]
+	N3 [label="Underwater Robotics" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+	N4 [label="Safety System Implementation" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N5 [label="Exploration Robotics" color="#CD8FF2" fillcolor="#ECCFF5" shape=diamond style=filled]
+	N6 [label="Embedded Systems Development" color="#73C6BC" fillcolor="#D0EFEE" shape=oval style=filled]
+	N7 [label=Calibration color="#CD8FF2" fillcolor="#ECCFF5" shape=Mdiamond style=filled]
+	N8 [label="Robot Design" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	N9 [label="Sensor Integration" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N10 [label="Exoskeleton Development" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	N11 [label="Force Control" color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+	N12 [label="Path Planning" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N13 [label="Human_Robot Interaction" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+	N14 [label="Robot Assembly" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	S1 [label="" color="#CD8FF2" fillcolor="#ECCFF5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Collaborative Robotics" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Robotics Simulation" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+		nest0_1 [label="Medical Robotics" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+		nest0_0 -> nest0_1 [label=repairs color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Ethical Robotics Development" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Field Deployment" color="#CD8FF2" fillcolor="#ECCFF5" shape=hexagon style=filled]
+		nest1_1 [label="Autonomous Navigation" color="#FFC107" fillcolor="#FFECB3" shape=Mdiamond style=filled]
+		nest1_2 [label="Robot Fleet Management" color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+		nest1_0 -> nest1_1 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=controls color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=inspects color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=collaborates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=tests color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N1 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest1_0 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> S1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N12 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N13 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	S1 -> N7 [label=secures color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N3 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N3 -> N0 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_267.txt b/test/graphviz/scanned_hard/graphviz_267.txt
new file mode 100644
index 0000000000000000000000000000000000000000..17462f6f7acbbe794a9cd25933e0b4ea4bcd739d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_267.txt
@@ -0,0 +1,34 @@
+<Autonomous Navigation, connectedTo, Robot Fleet Management>
+<Autonomous Navigation, partOf, Autonomous Navigation>
+<Calibration, connectedTo, Robot Design>
+<Drone Control, connectedTo, Industrial Automation>
+<Drone Control, connectedTo, Underwater Robotics>
+<Embedded Systems Development, connectedTo, Calibration>
+<Exoskeleton Development, connectedTo, Force Control>
+<Exploration Robotics, collaborates, Embedded Systems Development>
+<Exploration Robotics, connectedTo, Force Control>
+<Exploration Robotics, connectedTo, Human_Robot Interaction>
+<Exploration Robotics, connectedTo, Path Planning>
+<Exploration Robotics, connectedTo, Robotics Simulation>
+<Exploration Robotics, secures, Calibration>
+<Field Deployment, connectedTo, Autonomous Navigation>
+<Field Deployment, partOf, Field Deployment>
+<Force Control, connectedTo, Path Planning>
+<Human_Robot Interaction, connectedTo, Robot Assembly>
+<Industrial Automation, connectedTo, Calibration>
+<Industrial Automation, connectedTo, Underwater Robotics>
+<Industrial Automation, connectedTo, Wireless Communication>
+<Medical Robotics, connectedTo, Industrial Automation>
+<Medical Robotics, partOf, Medical Robotics>
+<Path Planning, connectedTo, Human_Robot Interaction>
+<Robot Design, tests, Sensor Integration>
+<Robot Fleet Management, connectedTo, Exploration Robotics>
+<Robot Fleet Management, partOf, Robot Fleet Management>
+<Robotics Simulation, partOf, Robotics Simulation>
+<Robotics Simulation, repairs, Medical Robotics>
+<Safety System Implementation, inspects, Exploration Robotics>
+<Sensor Integration, connectedTo, Exoskeleton Development>
+<Underwater Robotics, connectedTo, Drone Control>
+<Underwater Robotics, connectedTo, Field Deployment>
+<Underwater Robotics, controls, Safety System Implementation>
+<Wireless Communication, connectedTo, Underwater Robotics>
diff --git a/test/graphviz/scanned_hard/graphviz_268.dot b/test/graphviz/scanned_hard/graphviz_268.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2e4ffa8b656eec2b46b218c9c401de54b13ae955
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_268.dot
@@ -0,0 +1,81 @@
+digraph {
+	rankdir=LR
+	N0 [label="Bridge Building" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N1 [label="Risk Assessment" color="#FF9800" fillcolor="#FFE0B2" shape=Mdiamond style=filled]
+	N2 [label="Sustainable Building Design" color="#FFCC80" fillcolor="#FFF0CC" shape=Mdiamond style=filled]
+	N3 [label="Permit Application" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N4 [label="HVAC Installation" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N5 [label="Landscape Design" color="#FFCC80" fillcolor="#FFF0CC" shape=Mdiamond style=filled]
+	N6 [label="Facade Installation" color="#FF9800" fillcolor="#FFE0B2" shape=hexagon style=filled]
+	N7 [label="Site Decontamination" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N8 [label="Drone Surveying" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N9 [label="Concrete Pouring" color="#FFCC80" fillcolor="#FFF0CC" shape=oval style=filled]
+	N10 [label="Waste Management" color="#FF9800" fillcolor="#FFE0B2" shape=hexagon style=filled]
+	N11 [label="Blueprint Review" color="#FF9800" fillcolor="#FFE0B2" shape=diamond style=filled]
+	N12 [label="Material Procurement" color="#FF9800" fillcolor="#FFE0B2" shape=folder style=filled]
+	N13 [label=Demolition color="#FFCC80" fillcolor="#FFF0CC" shape=Mdiamond style=filled]
+	N14 [label="Foundation Laying" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N15 [label="Occupancy Permit Acquisition" color="#FF9800" fillcolor="#FFE0B2" shape=parallelogram style=filled]
+	N16 [label="Electrical Wiring" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N17 [label="Budget Tracking" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	S0 [label="" color="#FF9800" fillcolor="#FFE0B2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFCC80" fillcolor="#FFF0CC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFEB3B" fillcolor="#FFF9C4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FF9800" fillcolor="#FFE0B2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#FF9800" fillcolor="#FFE0B2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Subcontractor Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Site Logistics" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+		nest0_1 [label="Steel Erection" color="#FF9800" fillcolor="#FFE0B2" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [label=maintains color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Utility Connection" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Post_Construction Handover" color="#FF9800" fillcolor="#FFE0B2" shape=parallelogram style=filled]
+		nest1_1 [label=Pre_fabrication color="#FFCC80" fillcolor="#FFF0CC" shape=parallelogram style=filled]
+		nest1_2 [label="Change Order Management" color="#FF9800" fillcolor="#FFE0B2" shape=Mdiamond style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N15 -> N16 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N16 -> N17 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N14 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N16 -> nest1_0 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N3 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N13 -> S0 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	S0 -> N15 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N16 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N17 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> S1 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N8 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N15 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> M0 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	M0 -> N14 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M1 [label=audits color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N6 -> M1 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N5 -> M1 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N9 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M2 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M2 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_268.txt b/test/graphviz/scanned_hard/graphviz_268.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5653c7736420e7483fd51f6e4195896fff34a779
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_268.txt
@@ -0,0 +1,42 @@
+<Blueprint Review, connectedTo, Material Procurement>
+<Bridge Building, connectedTo, Risk Assessment>
+<Change Order Management, connectedTo, Permit Application>
+<Change Order Management, partOf, Change Order Management>
+<Concrete Pouring, connectedTo, Waste Management>
+<Demolition, connectedTo, Budget Tracking>
+<Demolition, connectedTo, Electrical Wiring>
+<Demolition, connectedTo, Foundation Laying>
+<Demolition, connectedTo, Occupancy Permit Acquisition>
+<Drone Surveying, connectedTo, Concrete Pouring>
+<Electrical Wiring, connectedTo, Budget Tracking>
+<Electrical Wiring, connectedTo, Post_Construction Handover>
+<Facade Installation, connectedTo, Concrete Pouring>
+<Facade Installation, connectedTo, Drone Surveying>
+<Facade Installation, connectedTo, Occupancy Permit Acquisition>
+<Facade Installation, connectedTo, Site Decontamination>
+<Foundation Laying, connectedTo, Occupancy Permit Acquisition>
+<HVAC Installation, connectedTo, Facade Installation>
+<HVAC Installation, connectedTo, Landscape Design>
+<Landscape Design, connectedTo, Concrete Pouring>
+<Landscape Design, connectedTo, Facade Installation>
+<Material Procurement, connectedTo, Demolition>
+<Occupancy Permit Acquisition, connectedTo, Electrical Wiring>
+<Permit Application, audits, Concrete Pouring>
+<Permit Application, connectedTo, HVAC Installation>
+<Post_Construction Handover, connectedTo, Pre_fabrication>
+<Post_Construction Handover, partOf, Post_Construction Handover>
+<Pre_fabrication, connectedTo, Change Order Management>
+<Pre_fabrication, partOf, Pre_fabrication>
+<Risk Assessment, connectedTo, Foundation Laying>
+<Risk Assessment, connectedTo, Site Logistics>
+<Risk Assessment, connectedTo, Sustainable Building Design>
+<Site Decontamination, connectedTo, Drone Surveying>
+<Site Logistics, maintains, Steel Erection>
+<Site Logistics, partOf, Site Logistics>
+<Steel Erection, connectedTo, Foundation Laying>
+<Steel Erection, partOf, Steel Erection>
+<Sustainable Building Design, connectedTo, Facade Installation>
+<Sustainable Building Design, connectedTo, Foundation Laying>
+<Sustainable Building Design, connectedTo, Permit Application>
+<Waste Management, connectedTo, Blueprint Review>
+<Waste Management, connectedTo, Foundation Laying>
diff --git a/test/graphviz/scanned_hard/graphviz_27.dot b/test/graphviz/scanned_hard/graphviz_27.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e1d3c8c6817d8067d41134d28e5f1e9d29db7424
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_27.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=TD
+	N0 [label="Wireless Communication" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N1 [label="Robot Design" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N2 [label="Force Control" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N3 [label="Battery Management" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N4 [label="Grasping and Manipulation" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N5 [label=Maintenance color="#FFF176" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N6 [label="Robotics Simulation" color="#E57373" fillcolor="#FFEBEE" shape=octagon style=filled]
+	N7 [label="Robot Assembly" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N8 [label="Autonomous Navigation" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N9 [label="Drone Control" color="#9575CD" fillcolor="#EDE7F6" shape=Mdiamond style=filled]
+	N10 [label="Industrial Automation" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N0 -> N1 [label=assists color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=moves color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=manipulates color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=lifts color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=assembles color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N2 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N4 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_271.dot b/test/graphviz/scanned_hard/graphviz_271.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6574dfbc95d478a461180663d8eed2cfa45908e0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_271.dot
@@ -0,0 +1,58 @@
+digraph {
+	rankdir=BT
+	N0 [label="Sports Psychology" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N1 [label="Sports Analytics" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N2 [label="Youth Development Programs" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+	N3 [label="Talent Scouting" color="#9C27B0" fillcolor="#E1BEE7" shape=parallelogram style=filled]
+	N4 [label="Fan Engagement" color="#9C27B0" fillcolor="#E1BEE7" shape=hexagon style=filled]
+	N5 [label="Sports Medicine" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N6 [label="Accessibility in Sports Venues" color="#E57373" fillcolor="#FFEBEE" shape=diamond style=filled]
+	N7 [label="Ticketing Sales" color="#9C27B0" fillcolor="#E1BEE7" shape=ellipse style=filled]
+	S0 [label="" color="#9C27B0" fillcolor="#E1BEE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFDA4E" fillcolor="#FFE88D" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#E57373" fillcolor="#FFEBEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Sports Marketing" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Fan Experience Enhancement" color="#E57373" fillcolor="#FFEBEE" shape=Mdiamond style=filled]
+		nest0_1 [label="Injury Management" color="#E57373" fillcolor="#FFEBEE" shape=folder style=filled]
+		nest0_2 [label="Athlete Nutrition Planning" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+		nest0_3 [label="Stadium Operations" color="#9C27B0" fillcolor="#E1BEE7" shape=plaintext style=filled]
+		nest0_0 -> nest0_1 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Fitness Conditioning" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Merchandise Sales" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+		nest1_1 [label="Fan Club Management" color="#9C27B0" fillcolor="#E1BEE7" shape=diamond style=filled]
+		nest1_2 [label="Team Management" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N2 -> nest0_0 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N6 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest1_0 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N6 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N1 -> S0 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	S0 -> N3 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> S1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N4 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	S1 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> S2 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	S2 -> N7 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	S2 -> N6 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_271.txt b/test/graphviz/scanned_hard/graphviz_271.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b1b77ced17e5c4cd7524d79c2feac02ad3b8625c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_271.txt
@@ -0,0 +1,30 @@
+<Accessibility in Sports Venues, connectedTo, Merchandise Sales>
+<Accessibility in Sports Venues, connectedTo, Ticketing Sales>
+<Athlete Nutrition Planning, connectedTo, Stadium Operations>
+<Athlete Nutrition Planning, partOf, Athlete Nutrition Planning>
+<Fan Club Management, connectedTo, Team Management>
+<Fan Club Management, partOf, Fan Club Management>
+<Fan Engagement, connectedTo, Accessibility in Sports Venues>
+<Fan Engagement, connectedTo, Sports Medicine>
+<Fan Engagement, connectedTo, Ticketing Sales>
+<Fan Experience Enhancement, connectedTo, Injury Management>
+<Fan Experience Enhancement, partOf, Fan Experience Enhancement>
+<Injury Management, connectedTo, Athlete Nutrition Planning>
+<Injury Management, partOf, Injury Management>
+<Merchandise Sales, connectedTo, Fan Club Management>
+<Merchandise Sales, partOf, Merchandise Sales>
+<Sports Analytics, connectedTo, Accessibility in Sports Venues>
+<Sports Analytics, connectedTo, Fan Engagement>
+<Sports Analytics, connectedTo, Sports Medicine>
+<Sports Analytics, connectedTo, Talent Scouting>
+<Sports Analytics, connectedTo, Ticketing Sales>
+<Sports Analytics, connectedTo, Youth Development Programs>
+<Sports Medicine, connectedTo, Accessibility in Sports Venues>
+<Sports Psychology, connectedTo, Sports Analytics>
+<Stadium Operations, connectedTo, Accessibility in Sports Venues>
+<Stadium Operations, partOf, Stadium Operations>
+<Talent Scouting, connectedTo, Fan Engagement>
+<Team Management, connectedTo, Accessibility in Sports Venues>
+<Team Management, partOf, Team Management>
+<Youth Development Programs, connectedTo, Fan Experience Enhancement>
+<Youth Development Programs, connectedTo, Talent Scouting>
diff --git a/test/graphviz/scanned_hard/graphviz_272.dot b/test/graphviz/scanned_hard/graphviz_272.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e29b7caf3ef68f784c2d6d44dc20648e60769d3c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_272.dot
@@ -0,0 +1,71 @@
+digraph {
+	rankdir=LR
+	N0 [label="Custom Apparel Design" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N1 [label="Retail Store Merchandising" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N2 [label="Pattern Making" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N3 [label="Footwear Production" color="#8C9EFF" fillcolor="#D3D7EB" shape=Mdiamond style=filled]
+	N4 [label="Embroidery and Embellishment" color="#FFCC80" fillcolor="#FFF0CC" shape=hexagon style=filled]
+	N5 [label="Intellectual Property Protection" color="#8C9EFF" fillcolor="#D3D7EB" shape=plaintext style=filled]
+	N6 [label="Material Sourcing" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N7 [label="Brand Licensing" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N8 [label=Distribution color="#FFCC80" fillcolor="#FFF0CC" shape=oval style=filled]
+	N9 [label="Sample Creation" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N10 [label="Retail Sales" color="#FFCC80" fillcolor="#FFF0CC" shape=plaintext style=filled]
+	N11 [label="Seasonal Collection Planning" color="#8C9EFF" fillcolor="#D3D7EB" shape=folder style=filled]
+	N12 [label="Design Sketching" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N13 [label="PR and Media Outreach" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	S1 [label="" color="#8C9EFF" fillcolor="#D3D7EB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FBC02D" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFCC80" fillcolor="#FFF0CC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#FBC02D" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Sustainable Fashion Practices" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Marketing Campaign" color="#8C9EFF" fillcolor="#D3D7EB" shape=parallelogram style=filled]
+		nest0_1 [label="Ready_to_Wear Collection Launch" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+		nest0_2 [label="E_commerce Management" color="#8C9EFF" fillcolor="#D3D7EB" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Product Photography" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Color Palette Selection" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+		nest1_1 [label="Fashion Show Production" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+		nest1_2 [label="Inventory Management" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=videos color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N11 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N11 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N1 -> nest1_0 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	nest1_2 -> N3 [color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+	N4 -> S1 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N10 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N12 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	S1 -> N8 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [label=sells color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N8 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> M2 [color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N0 -> M2 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N7 [color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_273.dot b/test/graphviz/scanned_hard/graphviz_273.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d7c981b4dd68333c74db7b9a4594b1173561964f
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_273.dot
@@ -0,0 +1,62 @@
+digraph {
+	rankdir=BT
+	N0 [label="Exit Interviews" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N1 [label="Change Management" color="#80DDEA" fillcolor="#D3F7F9" shape=box style=filled]
+	N2 [label="Payroll Processing" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N3 [label="Union Negotiations" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N4 [label="Health and Safety Management" color="#80DDEA" fillcolor="#D3F7F9" shape=folder style=filled]
+	N5 [label="Onboarding Process" color="#FFE69C" fillcolor="#FFF9D4" shape=plaintext style=filled]
+	N6 [label="Employee Recognition Programs" color="#80DDEA" fillcolor="#D3F7F9" shape=plaintext style=filled]
+	N7 [label="Leave Management" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N8 [label="Team Building Activities" color="#80DDEA" fillcolor="#D3F7F9" shape=oval style=filled]
+	N9 [label="HR Analytics" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	S0 [label="" color="#80DDEA" fillcolor="#D3F7F9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FBC02D" fillcolor="#FFFDE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFE69C" fillcolor="#FFF9D4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFE69C" fillcolor="#FFF9D4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#80DDEA" fillcolor="#D3F7F9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Remote Work Policy" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Job Posting" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+		nest0_1 [label="Talent Management" color="#80DDEA" fillcolor="#D3F7F9" shape=folder style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Skill Development Programs" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Diversity and Inclusion Initiatives" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+		nest1_1 [label="Compensation and Benefits" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+		nest1_2 [label="Employee Relations" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> nest0_0 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N1 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N1 -> nest1_0 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	nest1_2 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S0 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N5 -> S1 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	S1 -> N9 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	S1 -> N7 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> M0 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> M1 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N5 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N8 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N2 -> M2 [label=disciplines color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N4 -> M2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_273.txt b/test/graphviz/scanned_hard/graphviz_273.txt
new file mode 100644
index 0000000000000000000000000000000000000000..239f5048c84ef94cc0727a5bc2c992eed9c0e101
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_273.txt
@@ -0,0 +1,30 @@
+<Change Management, connectedTo, Diversity and Inclusion Initiatives>
+<Change Management, connectedTo, Payroll Processing>
+<Compensation and Benefits, connectedTo, Employee Relations>
+<Compensation and Benefits, partOf, Compensation and Benefits>
+<Diversity and Inclusion Initiatives, connectedTo, Compensation and Benefits>
+<Diversity and Inclusion Initiatives, partOf, Diversity and Inclusion Initiatives>
+<Employee Recognition Programs, connectedTo, Leave Management>
+<Employee Relations, connectedTo, HR Analytics>
+<Employee Relations, partOf, Employee Relations>
+<Exit Interviews, connectedTo, Change Management>
+<Health and Safety Management, connectedTo, Employee Recognition Programs>
+<Health and Safety Management, connectedTo, Job Posting>
+<Health and Safety Management, connectedTo, Onboarding Process>
+<Health and Safety Management, connectedTo, Team Building Activities>
+<Job Posting, connectedTo, Talent Management>
+<Job Posting, partOf, Job Posting>
+<Leave Management, connectedTo, Team Building Activities>
+<Onboarding Process, connectedTo, Employee Recognition Programs>
+<Onboarding Process, connectedTo, HR Analytics>
+<Onboarding Process, connectedTo, Leave Management>
+<Onboarding Process, connectedTo, Team Building Activities>
+<Payroll Processing, connectedTo, Union Negotiations>
+<Payroll Processing, disciplines, Employee Recognition Programs>
+<Talent Management, connectedTo, Change Management>
+<Talent Management, partOf, Talent Management>
+<Team Building Activities, connectedTo, HR Analytics>
+<Union Negotiations, connectedTo, Employee Recognition Programs>
+<Union Negotiations, connectedTo, Health and Safety Management>
+<Union Negotiations, connectedTo, Leave Management>
+<Union Negotiations, connectedTo, Team Building Activities>
diff --git a/test/graphviz/scanned_hard/graphviz_274.dot b/test/graphviz/scanned_hard/graphviz_274.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d74c761010f62551183753977c5d5b18567a2f7b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_274.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=BT
+	N0 [label="Recruitment Metrics Reporting" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N1 [label="Recruitment Marketing" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N2 [label="Candidate Feedback Collection" color="#03A9F4" fillcolor="#B3E5FC" shape=folder style=filled]
+	N3 [label="Passive Candidate Engagement" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N4 [label="Campus Recruitment" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	N5 [label="Job Description Creation" color="#9FA9E1" fillcolor="#D6D9F0" shape=diamond style=filled]
+	N6 [label="Recruitment Process Outsourcing Management" color="#DCE775" fillcolor="#F9FBE7" shape=plaintext style=filled]
+	N7 [label="Background Check" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N8 [label="Offer Extension" color="#03A9F4" fillcolor="#B3E5FC" shape=folder style=filled]
+	N9 [label="Job Fair Organization" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N10 [label="Candidate Screening" color="#03A9F4" fillcolor="#B3E5FC" shape=oval style=filled]
+	N11 [label="Recruiter Training" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N12 [label="Applicant Tracking System Management" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N13 [label="Candidate Relationship Management" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N14 [label="Candidate Assessment Design" color="#03A9F4" fillcolor="#B3E5FC" shape=hexagon style=filled]
+	N15 [label="Global Recruitment Strategy" color="#03A9F4" fillcolor="#B3E5FC" shape=oval style=filled]
+	N16 [label="Compliance in Hiring" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N17 [label="Temporary Staffing" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	S0 [label="" color="#DCE775" fillcolor="#F9FBE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#03A9F4" fillcolor="#B3E5FC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#03A9F4" fillcolor="#B3E5FC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#DCE775" fillcolor="#F9FBE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Onboarding Handoff" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Competency_Based Interviewing" color="#9FA9E1" fillcolor="#D6D9F0" shape=folder style=filled]
+		nest0_1 [label="Talent Pipeline Building" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+		nest0_2 [label="Interview Panel Coordination" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+		nest0_3 [label="Executive Search" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [label=interviews color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label=Headhunting labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Interview Conducting" color="#9FA9E1" fillcolor="#D6D9F0" shape=octagon style=filled]
+		nest1_1 [label="Candidate Experience Management" color="#9FA9E1" fillcolor="#D6D9F0" shape=octagon style=filled]
+		nest1_2 [label="Internal Mobility" color="#9FA9E1" fillcolor="#D6D9F0" shape=folder style=filled]
+		nest1_0 -> nest1_1 [label=builds color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=brands color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=sources color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [label=protects color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [label=places color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N15 -> N16 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N16 -> N17 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest0_0 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N3 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N13 -> nest1_0 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	nest1_2 -> N3 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N12 -> S0 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N17 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N15 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N16 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N10 -> S1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	S1 -> N16 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N15 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N17 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N5 -> M0 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N6 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N14 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	M1 -> N4 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_275.txt b/test/graphviz/scanned_hard/graphviz_275.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c96f9f0c162cbc8f171831baf4ace45c1b59a556
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_275.txt
@@ -0,0 +1,45 @@
+<Accessibility Support, connectedTo, Customer Onboarding Support>
+<Accessibility Support, connectedTo, Customer Retention Strategies>
+<Accessibility Support, connectedTo, Multilingual Support>
+<Accessibility Support, connectedTo, Phone Support>
+<Complaint Resolution, connectedTo, Inquiry Handling>
+<Complaint Resolution, partOf, Complaint Resolution>
+<Customer Journey Mapping, connectedTo, Customer Retention Strategies>
+<Customer Journey Mapping, connectedTo, Order Status Check>
+<Customer Journey Mapping, connectedTo, Personalized Assistance>
+<Customer Journey Mapping, connectedTo, Self_Service Portal Management>
+<Customer Onboarding Support, connectedTo, Account Management>
+<Customer Onboarding Support, connectedTo, Customer Retention Strategies>
+<Customer Onboarding Support, connectedTo, Personalized Assistance>
+<Customer Onboarding Support, secures, Customer Journey Mapping>
+<Customer Retention Strategies, connectedTo, Issue Escalation>
+<Customer Retention Strategies, personals, Self_Service Portal Management>
+<Email Support, connectedTo, Customer Retention Strategies>
+<Email Support, partOf, Email Support>
+<Feedback Loop to Product Development, connectedTo, Customer Retention Strategies>
+<Feedback Loop to Product Development, connectedTo, Inquiry Handling>
+<First Contact Resolution Optimization, connectedTo, Accessibility Support>
+<First Contact Resolution Optimization, connectedTo, Phone Support>
+<Inquiry Handling, connectedTo, Customer Retention Strategies>
+<Inquiry Handling, connectedTo, First Contact Resolution Optimization>
+<Issue Escalation, connectedTo, Proactive Communication>
+<Issue Escalation, partOf, Issue Escalation>
+<Knowledge Base Creation, connectedTo, Phone Support>
+<Multilingual Support, connectedTo, Knowledge Base Creation>
+<Order Status Check, complies, Email Support>
+<Order Status Check, partOf, Order Status Check>
+<Personalized Assistance, connectedTo, Account Management>
+<Phone Support, connectedTo, Customer Onboarding Support>
+<Phone Support, connectedTo, Customer Retention Strategies>
+<Proactive Communication, connectedTo, Social Media Response>
+<Proactive Communication, partOf, Proactive Communication>
+<Refund Processing, connectedTo, Phone Support>
+<Refund Processing, connectedTo, Service Level Agreement Monitoring>
+<Self_Service Portal Management, connectedTo, Personalized Assistance>
+<Service Level Agreement Monitoring, connectedTo, Inquiry Handling>
+<Service Level Agreement Monitoring, connectedTo, Phone Support>
+<Service Level Agreement Monitoring, connectedTo, Training Customer Service Agents>
+<Social Media Response, connectedTo, Complaint Resolution>
+<Social Media Response, partOf, Social Media Response>
+<Training Customer Service Agents, connectedTo, Feedback Loop to Product Development>
+<Training Customer Service Agents, connectedTo, Inquiry Handling>
diff --git a/test/graphviz/scanned_hard/graphviz_276.dot b/test/graphviz/scanned_hard/graphviz_276.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f4fd6cf0720c586eba0a89ee4f4c16b26871172d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_276.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=TD
+	N0 [label="Blockchain for Traceability" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	N1 [label="Intermodal Transportation" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N2 [label="Reverse Logistics" color="#CD8FF2" fillcolor="#ECCFF5" shape=oval style=filled]
+	N3 [label="Third_Party Logistics Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=octagon style=filled]
+	N4 [label="Global Sourcing Strategy" color="#92C79A" fillcolor="#E8F0EA" shape=parallelogram style=filled]
+	N5 [label="Vendor Managed Inventory" color="#92C79A" fillcolor="#E8F0EA" shape=parallelogram style=filled]
+	N6 [label="Last_Mile Delivery Optimization" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	N7 [label="Distribution Network Design" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	N8 [label="Supplier Relationship Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N9 [label="Data Analytics for Supply Chain" color="#92C79A" fillcolor="#E8F0EA" shape=octagon style=filled]
+	N10 [label="Material Flow Management" color="#92C79A" fillcolor="#E8F0EA" shape=octagon style=filled]
+	N11 [label="Circular Economy Practices" color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+	N12 [label="Contract Manufacturing Oversight" color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+	N13 [label="Performance Monitoring" color="#FF9800" fillcolor="#FFE0B2" shape=diamond style=filled]
+	N14 [label="Predictive Analytics" color="#CD8FF2" fillcolor="#ECCFF5" shape=Mdiamond style=filled]
+	N15 [label="Transportation Management" color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+	N16 [label="Supply Chain Finance" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	S0 [label="" color="#CD8FF2" fillcolor="#ECCFF5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FF9800" fillcolor="#FFE0B2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FF9800" fillcolor="#FFE0B2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#92C79A" fillcolor="#E8F0EA" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Production Planning" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label=Procurement color="#CD8FF2" fillcolor="#ECCFF5" shape=parallelogram style=filled]
+		nest0_1 [label="Collaborative Planning" color="#92C79A" fillcolor="#E8F0EA" shape=box style=filled]
+		nest0_2 [label="Sustainability Initiatives" color="#92C79A" fillcolor="#E8F0EA" shape=diamond style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [label=distributes color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Logistics Optimization" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Order Fulfillment" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+		nest1_1 [label=Warehousing color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+		nest1_2 [label="Cold Chain Logistics" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+		nest1_3 [label="Warehouse Automation" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=forecasts color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [label=inspects color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N14 -> N15 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N15 -> N16 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest0_0 [color="#92C79A" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N10 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N14 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest1_3 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N13 -> S0 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	S0 -> N16 [label=regulates color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	S0 -> N15 [color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> S1 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N11 [color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N4 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N11 -> M0 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N14 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M2 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N0 -> M2 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N2 -> M2 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N5 [color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_277.dot b/test/graphviz/scanned_hard/graphviz_277.dot
new file mode 100644
index 0000000000000000000000000000000000000000..69b9027c3b9174c226e533630c8e02b0175f7cf6
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_277.dot
@@ -0,0 +1,54 @@
+digraph {
+	rankdir=LR
+	N0 [label="Permit Acquisition" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	N1 [label="Water Management" color="#FFCC7A" fillcolor="#FFF6D9" shape=plaintext style=filled]
+	N2 [label="Ore Sorting" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N3 [label="Mine Dewatering" color="#FFC2C2" fillcolor="#FFEBEB" shape=folder style=filled]
+	N4 [label="Feasibility Study" color="#FFC2C2" fillcolor="#FFEBEB" shape=oval style=filled]
+	N5 [label=Reclamation color="#FFB74D" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N6 [label="Robotics in Mining" color="#FFB74D" fillcolor="#FFF3E0" shape=folder style=filled]
+	N7 [label="Emergency Response Planning" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N8 [label="Remote Operations Center" color="#FFB74D" fillcolor="#FFF3E0" shape=box style=filled]
+	N9 [label="Geotechnical Stability Analysis" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	S0 [label="" color="#FFCC7A" fillcolor="#FFF6D9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFB74D" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFC2C2" fillcolor="#FFEBEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label=Smelting labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Equipment Maintenance" color="#FFB74D" fillcolor="#FFF3E0" shape=box style=filled]
+		nest0_1 [label="Autonomous Haulage Systems" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Tailings Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label=Refining color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+		nest1_1 [label="Crushing and Grinding" color="#FFCC7A" fillcolor="#FFF6D9" shape=oval style=filled]
+		nest1_2 [label="Mineral Processing" color="#FFB74D" fillcolor="#FFF3E0" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [label=grinds color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=transports color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=separates color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest0_0 [label=forecasts color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N3 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest1_0 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	nest1_2 -> N3 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	N4 -> S0 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N6 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N3 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M1 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	N6 -> M1 [color="#FFB74D" dir=forward penwidth=1.5 style=solid]
+	M1 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_277.txt b/test/graphviz/scanned_hard/graphviz_277.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b7e1134e7b93e203f32907cef2568a7ddb1f26f1
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_277.txt
@@ -0,0 +1,27 @@
+<Autonomous Haulage Systems, connectedTo, Mine Dewatering>
+<Autonomous Haulage Systems, partOf, Autonomous Haulage Systems>
+<Crushing and Grinding, grinds, Mineral Processing>
+<Crushing and Grinding, partOf, Crushing and Grinding>
+<Emergency Response Planning, connectedTo, Remote Operations Center>
+<Equipment Maintenance, connectedTo, Autonomous Haulage Systems>
+<Equipment Maintenance, partOf, Equipment Maintenance>
+<Feasibility Study, connectedTo, Emergency Response Planning>
+<Feasibility Study, connectedTo, Reclamation>
+<Feasibility Study, connectedTo, Remote Operations Center>
+<Feasibility Study, connectedTo, Robotics in Mining>
+<Mine Dewatering, transports, Feasibility Study>
+<Mineral Processing, connectedTo, Mine Dewatering>
+<Mineral Processing, partOf, Mineral Processing>
+<Ore Sorting, connectedTo, Mine Dewatering>
+<Ore Sorting, forecasts, Equipment Maintenance>
+<Permit Acquisition, connectedTo, Mine Dewatering>
+<Permit Acquisition, connectedTo, Water Management>
+<Reclamation, connectedTo, Robotics in Mining>
+<Refining, connectedTo, Crushing and Grinding>
+<Refining, partOf, Refining>
+<Remote Operations Center, separates, Geotechnical Stability Analysis>
+<Robotics in Mining, connectedTo, Emergency Response Planning>
+<Robotics in Mining, connectedTo, Remote Operations Center>
+<Water Management, connectedTo, Mine Dewatering>
+<Water Management, connectedTo, Ore Sorting>
+<Water Management, connectedTo, Refining>
diff --git a/test/graphviz/scanned_hard/graphviz_278.dot b/test/graphviz/scanned_hard/graphviz_278.dot
new file mode 100644
index 0000000000000000000000000000000000000000..490ceb02ebe5a21dacc88e1473b4ab443006daec
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_278.dot
@@ -0,0 +1,84 @@
+digraph {
+	rankdir=BT
+	N0 [label="Terminal Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N1 [label="Fleet Management" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	N2 [label="Ship Registry" color="#A2D0FF" fillcolor="#E8F0FF" shape=diamond style=filled]
+	N3 [label="Fuel Consumption Optimization" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+	N4 [label="Inland Waterway Transport" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+	N5 [label="Ballast Water Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+	N6 [label="Digitalization of Shipping" color="#A2D0FF" fillcolor="#E8F0FF" shape=hexagon style=filled]
+	N7 [label=Navigation color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N8 [label="Voyage Optimization" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N9 [label="Subsea Cable Laying" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	N10 [label="Hydrographic Surveying" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N11 [label="Vessel Maintenance" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+	N12 [label="Customs Clearance" color="#FFE470" fillcolor="#FFFAE0" shape=hexagon style=filled]
+	N13 [label="Maritime Law Compliance" color="#FFEB3B" fillcolor="#FFF9C4" shape=oval style=filled]
+	N14 [label="Search and Rescue Coordination" color="#FFEB3B" fillcolor="#FFF9C4" shape=folder style=filled]
+	N15 [label=Pilotage color="#FFE470" fillcolor="#FFFAE0" shape=folder style=filled]
+	N16 [label="Container Tracking" color="#FFE470" fillcolor="#FFFAE0" shape=octagon style=filled]
+	N17 [label="Port Operations" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N18 [label="Marine Safety Inspection" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+	N19 [label="Green Shipping Initiatives" color="#FFEB3B" fillcolor="#FFF9C4" shape=plaintext style=filled]
+	N20 [label="Vessel Chartering" color="#A2D0FF" fillcolor="#E8F0FF" shape=diamond style=filled]
+	N21 [label="Salvage Operations" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+	S0 [label="" color="#FFEB3B" fillcolor="#FFF9C4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFEB3B" fillcolor="#FFF9C4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFEB3B" fillcolor="#FFF9C4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#A2D0FF" fillcolor="#E8F0FF" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Dry Docking" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label=Shipbuilding color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+		nest0_1 [label="Cargo Loading" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label=Bunkering labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Route Planning" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+		nest1_1 [label="Crew Management" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+		nest1_0 -> nest1_1 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=repairs color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N15 -> N16 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N16 -> N17 [color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	N17 -> N18 [color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	N18 -> N19 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N19 -> N20 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N20 -> N21 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N7 -> nest0_0 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N5 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N7 -> nest1_0 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N17 -> S0 [color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	S0 -> N19 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N21 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N20 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N4 -> S1 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N11 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N12 -> M0 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N5 -> M0 [label=charts color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N16 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M1 [color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [label=monitors color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M1 -> N11 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_279.txt b/test/graphviz/scanned_hard/graphviz_279.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d7c4baa36be1fee217f1b78694fc6e1a70a642cf
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_279.txt
@@ -0,0 +1,32 @@
+<Asteroid Mining Feasibility, connectedTo, Re_entry Vehicle Design>
+<Asteroid Mining Feasibility, partOf, Asteroid Mining Feasibility>
+<Astronaut Training, connectedTo, Asteroid Mining Feasibility>
+<Astronaut Training, partOf, Astronaut Training>
+<Autonomous Rendezvous and Docking, connectedTo, Interplanetary Trajectory Calculation>
+<Autonomous Rendezvous and Docking, connectedTo, Re_entry Vehicle Design>
+<Autonomous Rendezvous and Docking, connectedTo, Space Habitat Development>
+<Autonomous Rendezvous and Docking, connectedTo, Space Weather Forecasting>
+<Autonomous Rendezvous and Docking, coordinates, Planetary Science Research>
+<Data Acquisition, connectedTo, Astronaut Training>
+<Data Acquisition, connectedTo, Interplanetary Trajectory Calculation>
+<Data Acquisition, connectedTo, Scientific Data Analysis>
+<Data Acquisition, connectedTo, Space Habitat Development>
+<Data Acquisition, connectedTo, Space Weather Forecasting>
+<Data Acquisition, connectedTo, Spacecraft Control>
+<Deep Space Communications, connectedTo, Scientific Data Analysis>
+<Deep Space Communications, partOf, Deep Space Communications>
+<Ground Station Operations, connectedTo, Mission Control Center Management>
+<Ground Station Operations, partOf, Ground Station Operations>
+<In_Situ Resource Utilization, connectedTo, Planetary Science Research>
+<In_Situ Resource Utilization, warns, Autonomous Rendezvous and Docking>
+<Interplanetary Trajectory Calculation, connectedTo, Scientific Data Analysis>
+<Interplanetary Trajectory Calculation, connectedTo, Space Habitat Development>
+<Interplanetary Trajectory Calculation, connectedTo, Space Weather Forecasting>
+<Mission Control Center Management, connectedTo, Deep Space Communications>
+<Mission Control Center Management, partOf, Mission Control Center Management>
+<Planetary Science Research, connectedTo, Data Acquisition>
+<Re_entry Vehicle Design, connectedTo, Planetary Science Research>
+<Scientific Data Analysis, connectedTo, Space Habitat Development>
+<Space Habitat Development, connectedTo, Space Weather Forecasting>
+<Spacecraft Control, controls, Ground Station Operations>
+<Spacecraft Control, partOf, Spacecraft Control>
diff --git a/test/graphviz/scanned_hard/graphviz_28.dot b/test/graphviz/scanned_hard/graphviz_28.dot
new file mode 100644
index 0000000000000000000000000000000000000000..faec7203d83d6d4302b4b7b2d5d602833bec26e0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_28.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=TD
+	N0 [label="Project Scheduling" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	N1 [label="Post_Construction Handover" color="#90A4AE" fillcolor="#ECEFF1" shape=hexagon style=filled]
+	N2 [label="Site Logistics" color="#9FA9E1" fillcolor="#D6D9F0" shape=folder style=filled]
+	N3 [label="Steel Erection" color="#C0CA33" fillcolor="#F9FBE7" shape=box style=filled]
+	N4 [label="BIM Modeling" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N5 [label="Occupancy Permit Acquisition" color="#C0CA33" fillcolor="#F9FBE7" shape=plaintext style=filled]
+	N6 [label="Budget Tracking" color="#90A4AE" fillcolor="#ECEFF1" shape=parallelogram style=filled]
+	N7 [label="Subcontractor Management" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N8 [label="Site Planning" color="#9FA9E1" fillcolor="#D6D9F0" shape=octagon style=filled]
+	N9 [label="Drone Surveying" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N10 [label="Bridge Building" color="#90A4AE" fillcolor="#ECEFF1" shape=folder style=filled]
+	N11 [label="Robotics in Construction" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N0 -> N1 [label=schedules color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=equips color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=tests color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=coordinates color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=budgets color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [label=consults color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N3 [label=lays color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_28.txt b/test/graphviz/scanned_hard/graphviz_28.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1177be95bd97884b4c2039d5c7cf7e088e00f7e2
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_28.txt
@@ -0,0 +1,12 @@
+<BIM Modeling, coordinates, Occupancy Permit Acquisition>
+<Bridge Building, consults, Robotics in Construction>
+<Budget Tracking, budgets, Subcontractor Management>
+<Drone Surveying, connectedTo, Bridge Building>
+<Occupancy Permit Acquisition, connectedTo, Budget Tracking>
+<Post_Construction Handover, equips, Site Logistics>
+<Project Scheduling, schedules, Post_Construction Handover>
+<Robotics in Construction, lays, Steel Erection>
+<Site Logistics, tests, Steel Erection>
+<Site Planning, connectedTo, Drone Surveying>
+<Steel Erection, connectedTo, BIM Modeling>
+<Subcontractor Management, connectedTo, Site Planning>
diff --git a/test/graphviz/scanned_hard/graphviz_280.txt b/test/graphviz/scanned_hard/graphviz_280.txt
new file mode 100644
index 0000000000000000000000000000000000000000..92f9b1b07b71ade4d4fdf1e196bd4e9819e91db0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_280.txt
@@ -0,0 +1,42 @@
+<Adaptation Strategy Development, connectedTo, Climate Change Vulnerability Assessment>
+<Adaptation Strategy Development, connectedTo, Climate Impact Assessment>
+<Aerosol Impact Assessment, connectedTo, Climate Change Vulnerability Assessment>
+<Carbon Cycle Research, connectedTo, Ecological Footprint Calculation>
+<Carbon Cycle Research, partOf, Carbon Cycle Research>
+<Climate Change Vulnerability Assessment, connectedTo, Environmental Justice Study>
+<Climate Education Programs, connectedTo, Carbon Cycle Research>
+<Climate Education Programs, partOf, Climate Education Programs>
+<Climate Finance Tracking, connectedTo, Climate Change Vulnerability Assessment>
+<Climate Finance Tracking, connectedTo, Indigenous Knowledge Integration>
+<Climate Impact Assessment, connectedTo, Aerosol Impact Assessment>
+<Climate Impact Assessment, connectedTo, Climate Modeling>
+<Climate Impact Assessment, connectedTo, Environmental Justice Study>
+<Climate Impact Assessment, connectedTo, Extreme Weather Event Analysis>
+<Climate Impact Assessment, connectedTo, Mitigation Technology Evaluation>
+<Climate Modeling, connectedTo, Extreme Weather Event Analysis>
+<Climate Resilient Agriculture, connectedTo, Permafrost Thaw Assessment>
+<Climate Resilient Agriculture, partOf, Climate Resilient Agriculture>
+<Cloud Formation Research, connectedTo, Climate Resilient Agriculture>
+<Cloud Formation Research, partOf, Cloud Formation Research>
+<Data Collection, connectedTo, Mitigation Technology Evaluation>
+<Data Collection, connectedTo, Renewable Energy Potential Assessment>
+<Ecological Footprint Calculation, connectedTo, Aerosol Impact Assessment>
+<Ecological Footprint Calculation, partOf, Ecological Footprint Calculation>
+<Environmental Justice Study, connectedTo, Climate Modeling>
+<Extreme Weather Event Analysis, connectedTo, Data Collection>
+<Extreme Weather Event Analysis, connectedTo, Water Resource Management under Climate Change>
+<Greenhouse Gas Measurement, connectedTo, Adaptation Strategy Development>
+<Greenhouse Gas Measurement, connectedTo, Climate Change Vulnerability Assessment>
+<Greenhouse Gas Measurement, connectedTo, Climate Modeling>
+<Greenhouse Gas Measurement, connectedTo, Extreme Weather Event Analysis>
+<Greenhouse Gas Measurement, connectedTo, Mitigation Technology Evaluation>
+<Greenhouse Gas Measurement, connectedTo, Ocean Acidification Studies>
+<Indigenous Knowledge Integration, connectedTo, Climate Change Vulnerability Assessment>
+<Indigenous Knowledge Integration, connectedTo, Greenhouse Gas Measurement>
+<Mitigation Technology Evaluation, connectedTo, Ocean Acidification Studies>
+<Permafrost Thaw Assessment, connectedTo, Environmental Justice Study>
+<Permafrost Thaw Assessment, partOf, Permafrost Thaw Assessment>
+<Renewable Energy Potential Assessment, connectedTo, Climate Education Programs>
+<Renewable Energy Potential Assessment, partOf, Renewable Energy Potential Assessment>
+<Water Resource Management under Climate Change, connectedTo, Cloud Formation Research>
+<Water Resource Management under Climate Change, partOf, Water Resource Management under Climate Change>
diff --git a/test/graphviz/scanned_hard/graphviz_281.txt b/test/graphviz/scanned_hard/graphviz_281.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9a62f44ed4a79ef76e1002019bc28efe4a857cec
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_281.txt
@@ -0,0 +1,37 @@
+<Air Quality Forecasting, connectedTo, Tropical Cyclone Analysis>
+<Atmospheric Data Collection, generates, Weather Forecasting>
+<Atmospheric Sounding, connectedTo, Ocean_Atmosphere Interaction Study>
+<Atmospheric Sounding, partOf, Atmospheric Sounding>
+<Boundary Layer Study, connectedTo, Satellite Meteorology>
+<Climate Modeling, connectedTo, Meteorological Instrument Calibration>
+<Climate Modeling, partOf, Climate Modeling>
+<Humidity Sensing, connectedTo, Tornado Watch or Warning>
+<Humidity Sensing, partOf, Humidity Sensing>
+<Lightning Detection, connectedTo, Synoptic Chart Analysis>
+<Meteorological Instrument Calibration, connectedTo, Precipitation Measurement>
+<Meteorological Instrument Calibration, partOf, Meteorological Instrument Calibration>
+<Meteorological Station Maintenance, connectedTo, Tornado Watch or Warning>
+<Nowcasting, analyzes, Boundary Layer Study>
+<Numerical Weather Prediction, connectedTo, Nowcasting>
+<Ocean_Atmosphere Interaction Study, connectedTo, Humidity Sensing>
+<Ocean_Atmosphere Interaction Study, partOf, Ocean_Atmosphere Interaction Study>
+<Pollution Dispersion Modeling, connectedTo, Severe Weather Warning>
+<Precipitation Measurement, connectedTo, Pollution Dispersion Modeling>
+<Precipitation Measurement, partOf, Precipitation Measurement>
+<Public Weather Briefing, connectedTo, Atmospheric Sounding>
+<Public Weather Briefing, partOf, Public Weather Briefing>
+<Satellite Meteorology, connectedTo, Atmospheric Data Collection>
+<Satellite Meteorology, connectedTo, Pollution Dispersion Modeling>
+<Satellite Meteorology, connectedTo, Weather Forecasting>
+<Severe Weather Warning, connectedTo, Climate Modeling>
+<Severe Weather Warning, connectedTo, Precipitation Measurement>
+<Severe Weather Warning, connectedTo, Public Weather Briefing>
+<Severe Weather Warning, predicts, Lightning Detection>
+<Storm Tracking, connectedTo, Atmospheric Data Collection>
+<Storm Tracking, connectedTo, Meteorological Station Maintenance>
+<Synoptic Chart Analysis, connectedTo, Air Quality Forecasting>
+<Synoptic Chart Analysis, connectedTo, Atmospheric Data Collection>
+<Synoptic Chart Analysis, connectedTo, Weather Forecasting>
+<Tornado Watch or Warning, connectedTo, Numerical Weather Prediction>
+<Tropical Cyclone Analysis, connectedTo, Severe Weather Warning>
+<Tropical Cyclone Analysis, retrieves, Atmospheric Data Collection>
diff --git a/test/graphviz/scanned_hard/graphviz_282.dot b/test/graphviz/scanned_hard/graphviz_282.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9cce8f3a37a094332ee313bf2c3fde4278c325fc
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_282.dot
@@ -0,0 +1,59 @@
+digraph {
+	rankdir=TD
+	N0 [label="Recycling Processing" color="#00BCD4" fillcolor="#B2EBF2" shape=ellipse style=filled]
+	N1 [label="Metal Recycling" color="#73C6BC" fillcolor="#D0EFEE" shape=Mdiamond style=filled]
+	N2 [label="Biomedical Waste Handling" color="#00BCD4" fillcolor="#B2EBF2" shape=ellipse style=filled]
+	N3 [label="Glass Recycling" color="#73C6BC" fillcolor="#D0EFEE" shape=plaintext style=filled]
+	N4 [label="Waste Compaction" color="#00BCD4" fillcolor="#B2EBF2" shape=oval style=filled]
+	N5 [label="Organics Collection" color="#00BCD4" fillcolor="#B2EBF2" shape=Mdiamond style=filled]
+	N6 [label="Landfill Operation" color="#607D8B" fillcolor="#CFD8DC" shape=ellipse style=filled]
+	N7 [label="Waste_to_Energy Conversion" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	N8 [label="Waste Characterization Study" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N9 [label="Waste Reduction Planning" color="#00BCD4" fillcolor="#B2EBF2" shape=box style=filled]
+	N10 [label="Extended Producer Responsibility" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	S0 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#607D8B" fillcolor="#CFD8DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Container Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Waste Logistics Optimization" color="#00BCD4" fillcolor="#B2EBF2" shape=octagon style=filled]
+		nest0_1 [label="Waste Incineration" color="#607D8B" fillcolor="#CFD8DC" shape=oval style=filled]
+		nest0_0 -> nest0_1 [label=segregates color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Resource Recovery" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Anaerobic Digestion" color="#00BCD4" fillcolor="#B2EBF2" shape=Mdiamond style=filled]
+		nest1_1 [label="Community Recycling Programs" color="#73C6BC" fillcolor="#D0EFEE" shape=Mdiamond style=filled]
+		nest1_2 [label="Circular Economy Initiatives" color="#607D8B" fillcolor="#CFD8DC" shape=octagon style=filled]
+		nest1_3 [label="Material Recovery Facility Operation" color="#607D8B" fillcolor="#CFD8DC" shape=oval style=filled]
+		nest1_0 -> nest1_1 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=transports color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N8 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N1 -> S0 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N6 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	S0 -> N10 [label=maintains color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N3 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M1 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N4 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_283.dot b/test/graphviz/scanned_hard/graphviz_283.dot
new file mode 100644
index 0000000000000000000000000000000000000000..98bfe4ceaea01505b7bb2023a62a983261d7ce86
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_283.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=RL
+	N0 [label="Drought Management" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	N1 [label="Ecosystem Protection" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N2 [label="Rainwater Harvesting" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	N3 [label="Water Conservation Planning" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	N4 [label="Hydrological Modeling" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	N5 [label="Wastewater Treatment" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	N6 [label="Greywater Recycling" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	N7 [label=Desalination color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+	N8 [label="Water Distribution" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+	N9 [label="Water Quality Monitoring" color="#E57373" fillcolor="#FFEBEE" shape=octagon style=filled]
+	N10 [label="Drinking Water Standards Compliance" color="#E91E63" fillcolor="#F8BBD0" shape=parallelogram style=filled]
+	N11 [label="Dam Management" color="#FFE69C" fillcolor="#FFF9D4" shape=folder style=filled]
+	N12 [label="Aquifer Recharge" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+	N13 [label="Groundwater Management" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	N14 [label="Industrial Water Use Optimization" color="#FFE69C" fillcolor="#FFF9D4" shape=hexagon style=filled]
+	N15 [label="Reservoir Operation" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	N16 [label="Irrigation Management" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N17 [label="Smart Water Networks" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	S0 [label="" color="#E57373" fillcolor="#FFEBEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#E57373" fillcolor="#FFEBEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#E91E63" fillcolor="#F8BBD0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFE69C" fillcolor="#FFF9D4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Climate Change Adaptation for Water" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Water Infrastructure Maintenance" color="#FFE69C" fillcolor="#FFF9D4" shape=hexagon style=filled]
+		nest0_1 [label="Water Scarcity Mitigation" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+		nest0_2 [label="Stormwater Management" color="#E57373" fillcolor="#FFEBEE" shape=parallelogram style=filled]
+		nest0_3 [label="Flood Control" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Agricultural Water Use Efficiency" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Water Source Identification" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+		nest1_1 [label="Watershed Management" color="#FFE69C" fillcolor="#FFF9D4" shape=hexagon style=filled]
+		nest1_2 [label="Transboundary Water Management" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [label=evaluates color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N15 -> N16 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N16 -> N17 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N17 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest1_0 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N5 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N2 -> S0 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	S0 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N16 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N5 -> S1 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N13 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N9 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	S1 -> N14 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M1 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N11 -> M1 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N14 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_284.dot b/test/graphviz/scanned_hard/graphviz_284.dot
new file mode 100644
index 0000000000000000000000000000000000000000..139c56b5a76bfd5296793b3faaa2fbc588646ac8
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_284.dot
@@ -0,0 +1,69 @@
+digraph {
+	rankdir=TD
+	N0 [label="Battery Recycling" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	N1 [label="Collection Point Management" color="#3F51B5" fillcolor="#C5CAE9" shape=box style=filled]
+	N2 [label="Textile Recycling" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+	N3 [label="Circular Economy Implementation" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N4 [label="Deposit_Return Schemes" color="#3F51B5" fillcolor="#C5CAE9" shape=box style=filled]
+	N5 [label="Composting Organic Waste" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N6 [label="Waste Stream Analysis" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N7 [label="Public Recycling Programs" color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+	N8 [label="Advanced Sorting Technologies" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N9 [label="Chemical Recycling" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+	N10 [label="Electronic Waste Recycling" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+	N11 [label="Tyre Recycling" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	S0 [label="" color="#92C79A" fillcolor="#E8F0EA" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FF5722" fillcolor="#FFCCBC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#92C79A" fillcolor="#E8F0EA" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#92C79A" fillcolor="#E8F0EA" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FF5722" fillcolor="#FFCCBC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Life Cycle Assessment" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="End_of_Life Product Management" color="#92C79A" fillcolor="#E8F0EA" shape=diamond style=filled]
+		nest0_1 [label="Paper Recycling" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Recycling Data Tracking" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="New Product Manufacturing" color="#FF5722" fillcolor="#FFCCBC" shape=octagon style=filled]
+		nest1_1 [label="Material Purity Testing" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+		nest1_2 [label="Mechanical Recycling" color="#92C79A" fillcolor="#E8F0EA" shape=folder style=filled]
+		nest1_3 [label="Contamination Reduction" color="#92C79A" fillcolor="#E8F0EA" shape=folder style=filled]
+		nest1_0 -> nest1_1 [color="#3F51B5" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest1_2 -> nest1_3 [color="#3F51B5" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#3F51B5" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#92C79A" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#92C79A" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [label=shreds color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N8 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N4 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest1_0 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N10 [color="#92C79A" dir=forward penwidth=1.5 style=solid]
+	N8 -> S0 [color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N10 [label=converts color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	S0 -> N11 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N0 -> S1 [color="#3F51B5" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N2 [label=enforces color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N4 [color="#92C79A" dir=forward penwidth=1.5 style=dashed]
+	N4 -> S2 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	S2 -> N11 [color="#3F51B5" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N6 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#92C79A" dir=forward penwidth=1.5 style=solid]
+	M0 -> N3 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N7 -> M1 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N6 -> M1 [label=manufactures color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M1 [color="#92C79A" dir=forward penwidth=1.5 style=solid]
+	M1 -> N9 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_284.txt b/test/graphviz/scanned_hard/graphviz_284.txt
new file mode 100644
index 0000000000000000000000000000000000000000..056c06089a6f60671e19b762e1ea8e0195e33a5f
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_284.txt
@@ -0,0 +1,36 @@
+<Advanced Sorting Technologies, connectedTo, Chemical Recycling>
+<Advanced Sorting Technologies, connectedTo, End_of_Life Product Management>
+<Advanced Sorting Technologies, connectedTo, Tyre Recycling>
+<Advanced Sorting Technologies, converts, Electronic Waste Recycling>
+<Battery Recycling, connectedTo, Circular Economy Implementation>
+<Battery Recycling, connectedTo, Collection Point Management>
+<Battery Recycling, connectedTo, Deposit_Return Schemes>
+<Battery Recycling, enforces, Textile Recycling>
+<Chemical Recycling, connectedTo, Electronic Waste Recycling>
+<Circular Economy Implementation, connectedTo, Deposit_Return Schemes>
+<Collection Point Management, connectedTo, Circular Economy Implementation>
+<Collection Point Management, connectedTo, Textile Recycling>
+<Composting Organic Waste, connectedTo, New Product Manufacturing>
+<Composting Organic Waste, connectedTo, Waste Stream Analysis>
+<Contamination Reduction, connectedTo, Electronic Waste Recycling>
+<Contamination Reduction, partOf, Contamination Reduction>
+<Deposit_Return Schemes, connectedTo, Chemical Recycling>
+<Deposit_Return Schemes, connectedTo, Composting Organic Waste>
+<Deposit_Return Schemes, connectedTo, Tyre Recycling>
+<Deposit_Return Schemes, connectedTo, Waste Stream Analysis>
+<Electronic Waste Recycling, shreds, Tyre Recycling>
+<End_of_Life Product Management, connectedTo, Paper Recycling>
+<End_of_Life Product Management, partOf, End_of_Life Product Management>
+<Material Purity Testing, connectedTo, Mechanical Recycling>
+<Material Purity Testing, partOf, Material Purity Testing>
+<Mechanical Recycling, connectedTo, Contamination Reduction>
+<Mechanical Recycling, partOf, Mechanical Recycling>
+<New Product Manufacturing, connectedTo, Material Purity Testing>
+<New Product Manufacturing, partOf, New Product Manufacturing>
+<Paper Recycling, connectedTo, Deposit_Return Schemes>
+<Paper Recycling, partOf, Paper Recycling>
+<Public Recycling Programs, connectedTo, Advanced Sorting Technologies>
+<Public Recycling Programs, connectedTo, Chemical Recycling>
+<Textile Recycling, connectedTo, Circular Economy Implementation>
+<Waste Stream Analysis, connectedTo, Public Recycling Programs>
+<Waste Stream Analysis, manufactures, Chemical Recycling>
diff --git a/test/graphviz/scanned_hard/graphviz_285.dot b/test/graphviz/scanned_hard/graphviz_285.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c69738dc58c2e56d9098d13339c2bd9c634328fe
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_285.dot
@@ -0,0 +1,76 @@
+digraph {
+	rankdir=LR
+	N0 [label="Tree Nursery Management" color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N1 [label="Ecological Restoration" color="#673AB7" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N2 [label="Public Access Management" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N3 [label="Forest Fire Management" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N4 [label=Reforestation color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N5 [label="Watershed Protection" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+	N6 [label="Drone Surveying for Forests" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N7 [label="Wood Product Manufacturing" color="#F7BEE0" fillcolor="#FAEBF3" shape=Mdiamond style=filled]
+	N8 [label="Forest Land Use Planning" color="#F7BEE0" fillcolor="#FAEBF3" shape=Mdiamond style=filled]
+	N9 [label="Erosion Control" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+	N10 [label="Pest and Disease Control" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N11 [label="Timber Harvesting" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N12 [label="Forest Inventory" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N13 [label="Logging Operations" color="#F7BEE0" fillcolor="#FAEBF3" shape=folder style=filled]
+	N14 [label=Afforestation color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N15 [label="Forest Road Construction" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	S0 [label="" color="#FFD54F" fillcolor="#FFF8E1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#FFD54F" fillcolor="#FFF8E1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFD54F" fillcolor="#FFF8E1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFD54F" fillcolor="#FFF8E1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Indigenous Forestry Practices" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Forestry Education" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+		nest0_1 [label="Sawmill Processing" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+		nest0_2 [label="Urban Forestry Management" color="#F7BEE0" fillcolor="#FAEBF3" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Forest Health Monitoring" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Sustainable Forest Management" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+		nest1_1 [label="Biodiversity Conservation in Forests" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=cultivates color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=harvests color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [label=surveys color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest0_0 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N4 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest1_0 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	S0 -> N14 [label=prevents color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S1 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> S2 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	S2 -> N14 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S2 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N12 [label=monitors color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M0 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N13 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	M1 -> N5 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_286.dot b/test/graphviz/scanned_hard/graphviz_286.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a7add7577dcb971ccf76f2130f32ece6e5048a02
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_286.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=RL
+	N0 [label="Anesthesia Administration" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N1 [label="Pre_surgical Assessment" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+	N2 [label="Animal Welfare Assessment" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N3 [label="Behavioral Counseling" color="#FFA726" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N4 [label="Reproductive Services" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N5 [label="Euthanasia Services" color="#00BCD4" fillcolor="#E0F7FA" shape=diamond style=filled]
+	N6 [label="Spay or Neuter Procedure" color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+	N7 [label="Dental Care" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N8 [label="Farm Animal Health Management" color="#E57373" fillcolor="#FFEBEE" shape=oval style=filled]
+	N9 [label="Pharmacy Management" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N10 [label=Microchipping color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+	N11 [label=Surgery color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N12 [label=Diagnosis color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N13 [label="Herd Health Programs" color="#FFA726" fillcolor="#FFF3E0" shape=Mdiamond style=filled]
+	N14 [label=Prescription color="#FFA726" fillcolor="#FFF3E0" shape=folder style=filled]
+	N15 [label="Genetic Counseling for Animals" color="#00BCD4" fillcolor="#E0F7FA" shape=oval style=filled]
+	N16 [label="Veterinary Pathology" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+	S0 [label="" color="#FFA726" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFA726" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#E57373" fillcolor="#FFEBEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#FFA726" fillcolor="#FFF3E0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Post_operative Care" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Pain Management" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+		nest0_1 [label="Pet Check_up" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Client Communication" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Parasite Control" color="#FFA726" fillcolor="#FFF3E0" shape=hexagon style=filled]
+		nest1_1 [label="Emergency Vet Services" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+		nest1_2 [label="Allergy Testing" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+		nest1_0 -> nest1_1 [label=dispenses color="#FFA726" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=inspects color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFA726" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FFA726" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFA726" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#FFA726" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N14 -> N15 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N15 -> N16 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N2 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N9 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest1_0 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N15 [color="#FFA726" dir=forward penwidth=1.5 style=dashed]
+	N13 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N15 [label=certifies color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N16 [label=bills color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N3 -> S1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> M1 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N6 -> M1 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	M1 -> N16 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N4 -> M2 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M2 -> N16 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_286.txt b/test/graphviz/scanned_hard/graphviz_286.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8ac2b3e50edd2b6282994bc2b665c5e98a5aab52
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_286.txt
@@ -0,0 +1,38 @@
+<Allergy Testing, connectedTo, Genetic Counseling for Animals>
+<Allergy Testing, partOf, Allergy Testing>
+<Anesthesia Administration, connectedTo, Pre_surgical Assessment>
+<Animal Welfare Assessment, connectedTo, Behavioral Counseling>
+<Animal Welfare Assessment, connectedTo, Pain Management>
+<Behavioral Counseling, connectedTo, Dental Care>
+<Behavioral Counseling, connectedTo, Microchipping>
+<Behavioral Counseling, connectedTo, Parasite Control>
+<Behavioral Counseling, connectedTo, Prescription>
+<Behavioral Counseling, connectedTo, Reproductive Services>
+<Dental Care, connectedTo, Farm Animal Health Management>
+<Dental Care, connectedTo, Veterinary Pathology>
+<Diagnosis, connectedTo, Herd Health Programs>
+<Emergency Vet Services, connectedTo, Allergy Testing>
+<Emergency Vet Services, partOf, Emergency Vet Services>
+<Euthanasia Services, connectedTo, Spay or Neuter Procedure>
+<Euthanasia Services, connectedTo, Veterinary Pathology>
+<Farm Animal Health Management, connectedTo, Pharmacy Management>
+<Genetic Counseling for Animals, connectedTo, Veterinary Pathology>
+<Herd Health Programs, bills, Veterinary Pathology>
+<Herd Health Programs, certifies, Genetic Counseling for Animals>
+<Herd Health Programs, connectedTo, Prescription>
+<Microchipping, connectedTo, Surgery>
+<Pain Management, connectedTo, Pet Check_up>
+<Pain Management, partOf, Pain Management>
+<Parasite Control, dispenses, Emergency Vet Services>
+<Parasite Control, partOf, Parasite Control>
+<Pet Check_up, connectedTo, Pharmacy Management>
+<Pet Check_up, partOf, Pet Check_up>
+<Pharmacy Management, connectedTo, Microchipping>
+<Pre_surgical Assessment, connectedTo, Veterinary Pathology>
+<Pre_surgical Assessment, inspects, Animal Welfare Assessment>
+<Prescription, connectedTo, Genetic Counseling for Animals>
+<Reproductive Services, connectedTo, Euthanasia Services>
+<Reproductive Services, connectedTo, Veterinary Pathology>
+<Spay or Neuter Procedure, connectedTo, Dental Care>
+<Spay or Neuter Procedure, connectedTo, Veterinary Pathology>
+<Surgery, connectedTo, Diagnosis>
diff --git a/test/graphviz/scanned_hard/graphviz_287.dot b/test/graphviz/scanned_hard/graphviz_287.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b3529e08e84550b1be53de25d19ebf0efd1c6645
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_287.dot
@@ -0,0 +1,69 @@
+digraph {
+	rankdir=LR
+	N0 [label="Story Time Reading" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N1 [label="Playground Safety Inspection" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N2 [label="Staff Training and Certification" color="#F06292" fillcolor="#FCE4EC" shape=folder style=filled]
+	N3 [label="Motor Skill Development" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N4 [label="Special Needs Accommodation" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N5 [label="Group Activities Coordination" color="#F06292" fillcolor="#FCE4EC" shape=plaintext style=filled]
+	N6 [label="Outdoor Play Supervision" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N7 [label="Daily Activity Reporting" color="#FF9800" fillcolor="#FFE0B2" shape=hexagon style=filled]
+	N8 [label="Childcare Facility Licensing" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N9 [label="Nutritional Meal Preparation" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N10 [label="Toddler Activities" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N11 [label="Nap Time Supervision" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N12 [label="Creative Arts Activities" color="#FF9800" fillcolor="#FFE0B2" shape=Mdiamond style=filled]
+	N13 [label="Outdoor Exploration" color="#FF9800" fillcolor="#FFE0B2" shape=octagon style=filled]
+	N14 [label="Teacher_Child Ratio Management" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	S0 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FF9800" fillcolor="#FFE0B2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Individualized Attention" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Field Trip Organization" color="#F06292" fillcolor="#FCE4EC" shape=Mdiamond style=filled]
+		nest0_1 [label="Infant Care" color="#FF9800" fillcolor="#FFE0B2" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Learning Material Selection" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Child Protection Policies" color="#FF9800" fillcolor="#FFE0B2" shape=Mdiamond style=filled]
+		nest1_1 [label="Parent_Teacher Conferences" color="#F06292" fillcolor="#FCE4EC" shape=Mdiamond style=filled]
+		nest1_2 [label="Emotional Support" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N10 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N11 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest1_0 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N12 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N2 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N12 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N9 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N7 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N13 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [label=maintains color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	M1 -> N10 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M2 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_287.txt b/test/graphviz/scanned_hard/graphviz_287.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0f32ef766ad8dd9fa4cb1480e5005bb030276d61
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_287.txt
@@ -0,0 +1,35 @@
+<Child Protection Policies, connectedTo, Parent_Teacher Conferences>
+<Child Protection Policies, partOf, Child Protection Policies>
+<Childcare Facility Licensing, connectedTo, Nutritional Meal Preparation>
+<Creative Arts Activities, connectedTo, Outdoor Exploration>
+<Daily Activity Reporting, connectedTo, Childcare Facility Licensing>
+<Emotional Support, connectedTo, Creative Arts Activities>
+<Emotional Support, partOf, Emotional Support>
+<Field Trip Organization, connectedTo, Infant Care>
+<Field Trip Organization, partOf, Field Trip Organization>
+<Group Activities Coordination, connectedTo, Child Protection Policies>
+<Group Activities Coordination, connectedTo, Outdoor Play Supervision>
+<Infant Care, connectedTo, Nap Time Supervision>
+<Infant Care, partOf, Infant Care>
+<Motor Skill Development, connectedTo, Childcare Facility Licensing>
+<Motor Skill Development, connectedTo, Outdoor Exploration>
+<Motor Skill Development, connectedTo, Special Needs Accommodation>
+<Motor Skill Development, connectedTo, Toddler Activities>
+<Motor Skill Development, maintains, Outdoor Play Supervision>
+<Nap Time Supervision, connectedTo, Creative Arts Activities>
+<Nutritional Meal Preparation, connectedTo, Toddler Activities>
+<Outdoor Exploration, connectedTo, Teacher_Child Ratio Management>
+<Outdoor Play Supervision, connectedTo, Daily Activity Reporting>
+<Parent_Teacher Conferences, connectedTo, Emotional Support>
+<Parent_Teacher Conferences, partOf, Parent_Teacher Conferences>
+<Playground Safety Inspection, connectedTo, Staff Training and Certification>
+<Playground Safety Inspection, connectedTo, Toddler Activities>
+<Special Needs Accommodation, connectedTo, Childcare Facility Licensing>
+<Special Needs Accommodation, connectedTo, Group Activities Coordination>
+<Staff Training and Certification, connectedTo, Creative Arts Activities>
+<Staff Training and Certification, connectedTo, Daily Activity Reporting>
+<Staff Training and Certification, connectedTo, Motor Skill Development>
+<Staff Training and Certification, connectedTo, Nutritional Meal Preparation>
+<Story Time Reading, connectedTo, Playground Safety Inspection>
+<Toddler Activities, connectedTo, Field Trip Organization>
+<Toddler Activities, connectedTo, Nap Time Supervision>
diff --git a/test/graphviz/scanned_hard/graphviz_288.dot b/test/graphviz/scanned_hard/graphviz_288.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9eb0b31aa93dc1a1f17ff8ce94c7aeaf5ca1c8b4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_288.dot
@@ -0,0 +1,65 @@
+digraph {
+	rankdir=BT
+	N0 [label="Emotional Support and Counseling" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N1 [label="Physical Therapy" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+	N2 [label="Chronic Disease Management" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N3 [label="Fall Prevention" color="#D2D2D2" fillcolor="#F0F0F0" shape=diamond style=filled]
+	N4 [label="Transportation Assistance" color="#D2D2D2" fillcolor="#F0F0F0" shape=folder style=filled]
+	N5 [label="Emergency Response System Monitoring" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N6 [label="Social Engagement Activities" color="#E57373" fillcolor="#FFEBEE" shape=Mdiamond style=filled]
+	N7 [label="Palliative Care" color="#E57373" fillcolor="#FFEBEE" shape=hexagon style=filled]
+	N8 [label="Occupational Therapy" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N9 [label="Family Communication" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N10 [label="Smart Home Integration for Seniors" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+	S0 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#D2D2D2" fillcolor="#F0F0F0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#D2D2D2" fillcolor="#F0F0F0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#66BB6A" fillcolor="#E8F5E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Pain Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Home Health Aide Services" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+		nest0_1 [label="Nutritional Assessment" color="#66BB6A" fillcolor="#E8F5E9" shape=octagon style=filled]
+		nest0_2 [label="Recreational Activities Planning" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Personal Care Assistance" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Respite Care" color="#E57373" fillcolor="#FFEBEE" shape=plaintext style=filled]
+		nest1_1 [label="Care Plan Development" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+		nest1_2 [label="Caregiver Training" color="#66BB6A" fillcolor="#E8F5E9" shape=Mdiamond style=filled]
+		nest1_3 [label="Speech Therapy" color="#D2D2D2" fillcolor="#F0F0F0" shape=hexagon style=filled]
+		nest1_0 -> nest1_1 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> nest0_0 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N9 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest1_0 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N6 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N4 -> S0 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> S1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N7 [color="#66BB6A" dir=forward penwidth=1.5 style=solid]
+	N5 -> M0 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N6 -> M0 [label=assesses color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N8 [color="#66BB6A" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M1 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_289.txt b/test/graphviz/scanned_hard/graphviz_289.txt
new file mode 100644
index 0000000000000000000000000000000000000000..81fccba77d781e6d693b9c7d6ca632f7ac57038a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_289.txt
@@ -0,0 +1,33 @@
+<Climate Change Adaptation for Disasters, connectedTo, Early Recovery Actions>
+<Climate Change Adaptation for Disasters, connectedTo, Satellite Imagery Analysis>
+<Communication Protocols, connectedTo, Emergency Response>
+<Communication Protocols, connectedTo, Information Dissemination>
+<Communication Protocols, connectedTo, Shelter Management>
+<Communication Protocols, connectedTo, Volunteer Coordination>
+<Community Preparedness, connectedTo, Satellite Imagery Analysis>
+<Community Preparedness, partOf, Community Preparedness>
+<Damage Assessment, connectedTo, Vulnerability Analysis>
+<Damage Assessment, partOf, Damage Assessment>
+<Early Recovery Actions, connectedTo, Satellite Imagery Analysis>
+<Economic Recovery Initiatives, connectedTo, Communication Protocols>
+<Economic Recovery Initiatives, partOf, Economic Recovery Initiatives>
+<Emergency Response, connectedTo, Volunteer Coordination>
+<Environmental Remediation, connectedTo, Communication Protocols>
+<Environmental Remediation, connectedTo, Damage Assessment>
+<Environmental Remediation, connectedTo, Emergency Response>
+<Environmental Remediation, connectedTo, Geographic Information Systems for Disasters>
+<Environmental Remediation, connectedTo, Volunteer Coordination>
+<Geographic Information Systems for Disasters, connectedTo, Communication Protocols>
+<Logistics and Supply Chain, connectedTo, Climate Change Adaptation for Disasters>
+<Logistics and Supply Chain, connectedTo, Satellite Imagery Analysis>
+<Satellite Imagery Analysis, connectedTo, Emergency Response>
+<Satellite Imagery Analysis, connectedTo, Environmental Remediation>
+<Satellite Imagery Analysis, connectedTo, Information Dissemination>
+<Satellite Imagery Analysis, connectedTo, Volunteer Coordination>
+<Search and Rescue Operations, connectedTo, Logistics and Supply Chain>
+<Search and Rescue Operations, connectedTo, Satellite Imagery Analysis>
+<Shelter Management, connectedTo, Community Preparedness>
+<Shelter Management, partOf, Shelter Management>
+<Volunteer Coordination, connectedTo, Information Dissemination>
+<Vulnerability Analysis, connectedTo, Economic Recovery Initiatives>
+<Vulnerability Analysis, partOf, Vulnerability Analysis>
diff --git a/test/graphviz/scanned_hard/graphviz_290.dot b/test/graphviz/scanned_hard/graphviz_290.dot
new file mode 100644
index 0000000000000000000000000000000000000000..dbd58e207f2dad31c574a1a4e5927928704434c4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_290.dot
@@ -0,0 +1,73 @@
+digraph {
+	rankdir=TD
+	N0 [label="Naval Operations" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N1 [label="Basic Training" color="#388E3C" fillcolor="#F1F8E9" shape=box style=filled]
+	N2 [label="Civil_Military Cooperation" color="#FFD54F" fillcolor="#FFF8E1" shape=octagon style=filled]
+	N3 [label="Chaplain Services" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N4 [label=Surveillance color="#FFD54F" fillcolor="#FFF8E1" shape=diamond style=filled]
+	N5 [label="Rules of Engagement" color="#388E3C" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N6 [label="Supply Chain Management" color="#388E3C" fillcolor="#F1F8E9" shape=box style=filled]
+	N7 [label="Military Strategy Development" color="#388E3C" fillcolor="#F1F8E9" shape=diamond style=filled]
+	N8 [label=Demobilization color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N9 [label="Family Support Programs" color="#FFD54F" fillcolor="#FFF8E1" shape=hexagon style=filled]
+	N10 [label="Veteran Support" color="#673AB7" fillcolor="#D1C4E9" shape=oval style=filled]
+	N11 [label=Targeting color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N12 [label="Military Law" color="#388E3C" fillcolor="#F1F8E9" shape=diamond style=filled]
+	N13 [label="Personnel Management" color="#FFD54F" fillcolor="#FFF8E1" shape=folder style=filled]
+	N14 [label="Cyber Warfare Operations" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N15 [label="Ground Operations" color="#388E3C" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	S0 [label="" color="#673AB7" fillcolor="#D1C4E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFD54F" fillcolor="#FFF8E1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#673AB7" fillcolor="#D1C4E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFD54F" fillcolor="#FFF8E1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Force Projection" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Counter_Insurgency Operations" color="#FFD54F" fillcolor="#FFF8E1" shape=Mdiamond style=filled]
+		nest0_1 [label="Counter_Terrorism Operations" color="#388E3C" fillcolor="#F1F8E9" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label=Reconnaissance labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Equipment Maintenance" color="#388E3C" fillcolor="#F1F8E9" shape=octagon style=filled]
+		nest1_1 [label="Readiness Assessment" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [label=tests color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [label=trains color="#000000" dir=forward penwidth=1.5 style=solid]
+	N14 -> N15 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N2 -> nest0_0 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N12 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest1_0 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	nest1_1 -> N3 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N3 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N11 -> S1 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N15 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N13 [color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N14 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N5 -> M0 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [label=maintains color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N7 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M1 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	M1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_292.dot b/test/graphviz/scanned_hard/graphviz_292.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5818392be568b26ad6a2216d26520c8a6cbeeab9
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_292.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=RL
+	N0 [label="Marine Charting" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N1 [label="Public Transit Navigation" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N2 [label="Inertial Navigation System" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N3 [label="Digital Compass Integration" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N4 [label="Celestial Navigation" color="#FFD54F" fillcolor="#FFF8E1" shape=diamond style=filled]
+	N5 [label="Route Calculation" color="#FFD54F" fillcolor="#FFF8E1" shape=hexagon style=filled]
+	N6 [label="Traffic Information" color="#FFC2C2" fillcolor="#FFEBEB" shape=octagon style=filled]
+	N7 [label=Geocoding color="#FFC2C2" fillcolor="#FFEBEB" shape=folder style=filled]
+	N8 [label="Bearing and Distance Calculation" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+	N9 [label="Personalized Route Preferences" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N10 [label="Dead Reckoning" color="#FFD54F" fillcolor="#FFF8E1" shape=hexagon style=filled]
+	N11 [label="Multi_modal Navigation" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N12 [label="Hazard Alerts" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N13 [label="Map Display" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N14 [label="Lane Guidance" color="#FFD54F" fillcolor="#FFF8E1" shape=hexagon style=filled]
+	N15 [label="ETA Estimation" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N16 [label="Offline Map Support" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N17 [label="Waypoint Setting" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	S0 [label="" color="#7E57C2" fillcolor="#EDE7F6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#7E57C2" fillcolor="#EDE7F6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#7E57C2" fillcolor="#EDE7F6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#7E57C2" fillcolor="#EDE7F6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Augmented Reality Navigation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Aeronautical Charting" color="#FFC2C2" fillcolor="#FFEBEB" shape=octagon style=filled]
+		nest0_1 [label="Satellite Navigation Systems" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Indoor Navigation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Topographic Mapping" color="#7E57C2" fillcolor="#EDE7F6" shape=octagon style=filled]
+		nest1_1 [label="Historical Traffic Data Analysis" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=locates color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=routes color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=identifies color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=optimizes color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N15 -> N16 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N16 -> N17 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N8 -> nest0_0 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N12 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N12 -> nest1_0 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N12 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N11 -> S0 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N16 [label=secures color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	S0 -> N14 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N2 -> S1 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N8 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	S1 -> N15 [label=detects color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N14 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N6 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N13 -> M0 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N15 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N10 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N11 -> M1 [color="#FFD54F" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N15 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_292.txt b/test/graphviz/scanned_hard/graphviz_292.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1fcd1a7f04c5100687090f3e5fec4ddcd9fa02dc
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_292.txt
@@ -0,0 +1,40 @@
+<Aeronautical Charting, connectedTo, Satellite Navigation Systems>
+<Aeronautical Charting, partOf, Aeronautical Charting>
+<Bearing and Distance Calculation, connectedTo, Aeronautical Charting>
+<Bearing and Distance Calculation, connectedTo, Personalized Route Preferences>
+<Celestial Navigation, routes, Route Calculation>
+<Dead Reckoning, connectedTo, ETA Estimation>
+<Dead Reckoning, connectedTo, Multi_modal Navigation>
+<Digital Compass Integration, connectedTo, ETA Estimation>
+<Digital Compass Integration, locates, Celestial Navigation>
+<ETA Estimation, connectedTo, Offline Map Support>
+<Geocoding, connectedTo, Bearing and Distance Calculation>
+<Hazard Alerts, connectedTo, Map Display>
+<Hazard Alerts, connectedTo, Topographic Mapping>
+<Historical Traffic Data Analysis, connectedTo, Hazard Alerts>
+<Historical Traffic Data Analysis, partOf, Historical Traffic Data Analysis>
+<Inertial Navigation System, connectedTo, Bearing and Distance Calculation>
+<Inertial Navigation System, connectedTo, Digital Compass Integration>
+<Inertial Navigation System, connectedTo, Lane Guidance>
+<Inertial Navigation System, connectedTo, Personalized Route Preferences>
+<Inertial Navigation System, detects, ETA Estimation>
+<Lane Guidance, connectedTo, ETA Estimation>
+<Map Display, connectedTo, ETA Estimation>
+<Map Display, connectedTo, Lane Guidance>
+<Marine Charting, connectedTo, ETA Estimation>
+<Marine Charting, connectedTo, Public Transit Navigation>
+<Multi_modal Navigation, connectedTo, ETA Estimation>
+<Multi_modal Navigation, connectedTo, Hazard Alerts>
+<Multi_modal Navigation, connectedTo, Lane Guidance>
+<Multi_modal Navigation, secures, Offline Map Support>
+<Offline Map Support, connectedTo, Waypoint Setting>
+<Personalized Route Preferences, optimizes, Dead Reckoning>
+<Public Transit Navigation, connectedTo, ETA Estimation>
+<Public Transit Navigation, connectedTo, Inertial Navigation System>
+<Route Calculation, connectedTo, Traffic Information>
+<Satellite Navigation Systems, connectedTo, Hazard Alerts>
+<Satellite Navigation Systems, partOf, Satellite Navigation Systems>
+<Topographic Mapping, connectedTo, Historical Traffic Data Analysis>
+<Topographic Mapping, partOf, Topographic Mapping>
+<Traffic Information, connectedTo, ETA Estimation>
+<Traffic Information, identifies, Geocoding>
diff --git a/test/graphviz/scanned_hard/graphviz_294.dot b/test/graphviz/scanned_hard/graphviz_294.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8c527362d4638281acfb0e3f340e613487090b41
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_294.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=RL
+	N0 [label="Water Purification using Nanomaterials" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N1 [label="Ethical Implications of Nanotech" color="#C0CA33" fillcolor="#F9FBE7" shape=box style=filled]
+	N2 [label="Nanodevice Fabrication" color="#FFF9AE" fillcolor="#FFFCE6" shape=hexagon style=filled]
+	N3 [label=Nanotoxicology color="#E0E0E0" fillcolor="#EBEBEB" shape=ellipse style=filled]
+	N4 [label="Quantum Computing Integration" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N5 [label="Energy Storage Applications" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+	N6 [label=Spintronics color="#C0CA33" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N7 [label="Transmission Electron Microscopy" color="#E0E0E0" fillcolor="#EBEBEB" shape=plaintext style=filled]
+	N8 [label="Regulatory Framework for Nanotech" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N9 [label="Risk Assessment of Nanomaterials" color="#FFF9AE" fillcolor="#FFFCE6" shape=hexagon style=filled]
+	N10 [label="Advanced Materials Research" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N11 [label="Scanning Electron Microscopy" color="#C0CA33" fillcolor="#F9FBE7" shape=Mdiamond style=filled]
+	N12 [label=Nanoelectronics color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N13 [label="Nanoparticle Characterization" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N14 [label=Biosensors color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	S0 [label="" color="#E0E0E0" fillcolor="#EBEBEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFF9AE" fillcolor="#FFFCE6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#C0CA33" fillcolor="#F9FBE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label=Nanocomposites labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Environmental Remediation with Nanomaterials" color="#E0E0E0" fillcolor="#EBEBEB" shape=ellipse style=filled]
+		nest0_1 [label=Photovoltaics color="#E0E0E0" fillcolor="#EBEBEB" shape=hexagon style=filled]
+		nest0_2 [label="Quantum Dots" color="#C0CA33" fillcolor="#F9FBE7" shape=oval style=filled]
+		nest0_3 [label=Spectroscopy color="#C0CA33" fillcolor="#F9FBE7" shape=oval style=filled]
+		nest0_0 -> nest0_1 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Bio_Nanotechnology Interface" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Molecular Self_Assembly" color="#C0CA33" fillcolor="#F9FBE7" shape=box style=filled]
+		nest1_1 [label="Carbon Nanotube Synthesis" color="#C0CA33" fillcolor="#F9FBE7" shape=oval style=filled]
+		nest1_2 [label=Nanosensors color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+		nest1_3 [label="Catalysis at Nanoscale" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+		nest1_0 -> nest1_1 [label=models color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#C0CA33" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [label=converts color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N4 -> nest0_0 [color="#C0CA33" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N6 [color="#E0E0E0" dir=forward penwidth=1.5 style=dashed]
+	N6 -> nest1_0 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	nest1_3 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N13 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N12 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N14 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N5 -> S1 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	S1 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N8 [label=detects color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M1 [label=controls color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [label=fabricates color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N5 -> M1 [color="#C0CA33" dir=forward penwidth=1.5 style=solid]
+	M1 -> N7 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_296.dot b/test/graphviz/scanned_hard/graphviz_296.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4135e59e3755c67a8ed9e060d768c30de8e94e7d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_296.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=TD
+	N0 [label="User Interface Design" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	N1 [label="Mixed Reality Solutions" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	N2 [label="Hardware Prototyping" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N3 [label="Spatial Audio Implementation" color="#5C6BC0" fillcolor="#E8EAF6" shape=Mdiamond style=filled]
+	N4 [label="3D Model Creation" color="#D3EB9F" fillcolor="#F8FDD3" shape=octagon style=filled]
+	N5 [label="Comfort and Ergonomics Design" color="#FF5722" fillcolor="#FFCCBC" shape=oval style=filled]
+	N6 [label="Gesture Recognition" color="#D3EB9F" fillcolor="#F8FDD3" shape=folder style=filled]
+	N7 [label="Architectural Visualization" color="#D3EB9F" fillcolor="#F8FDD3" shape=octagon style=filled]
+	N8 [label="Live Event Streaming in VR" color="#D3EB9F" fillcolor="#F8FDD3" shape=oval style=filled]
+	N9 [label="Cloud_based AR or VR Rendering" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N10 [label="Training Simulations" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	N11 [label="Augmented Reality App Development" color="#5C6BC0" fillcolor="#E8EAF6" shape=folder style=filled]
+	N12 [label="Virtual Tourism Experiences" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N13 [label="Environment Mapping" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N14 [label="Virtual Reality Game Development" color="#D3EB9F" fillcolor="#F8FDD3" shape=plaintext style=filled]
+	N15 [label="Software Development Kit Integration" color="#D3EB9F" fillcolor="#F8FDD3" shape=diamond style=filled]
+	N16 [label="Educational Content Development" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	S0 [label="" color="#5C6BC0" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#D3EB9F" fillcolor="#F8FDD3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#5C6BC0" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#FF5722" fillcolor="#FFCCBC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Wearable AR Devices" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Performance Optimization" color="#5C6BC0" fillcolor="#E8EAF6" shape=Mdiamond style=filled]
+		nest0_1 [label="Tracking System Calibration" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+		nest0_2 [label="Virtual Showrooms" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="User Experience Testing" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Eye Tracking" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+		nest1_1 [label="AR for Navigation" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+		nest1_2 [label="Retail Experience Enhancement" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+		nest1_3 [label="Content Creation for AR or VR" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+		nest1_2 -> nest1_3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label=renders color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=projects color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=interacts color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [label=simulates color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N15 -> N16 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N15 -> nest0_0 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N15 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N12 -> nest1_0 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N14 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N13 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N15 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	S0 -> N16 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N6 -> S1 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	S1 -> N9 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N12 [color="#5C6BC0" dir=forward penwidth=1.5 style=dashed]
+	N13 -> S2 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N15 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	S2 -> N16 [label=optimizes color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+	N4 -> M2 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N0 -> M2 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M2 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	M2 -> N10 [color="#5C6BC0" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_297.txt b/test/graphviz/scanned_hard/graphviz_297.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8b13317bee48d14d5a10923289a539be662b6766
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_297.txt
@@ -0,0 +1,36 @@
+<Asset Creation, connectedTo, Game Design>
+<Asset Creation, connectedTo, Monetization Strategy>
+<Bug Fixing, connectedTo, Virtual Reality Gaming>
+<Bug Fixing, partOf, Bug Fixing>
+<Character Design, connectedTo, Community Management>
+<Community Management, connectedTo, Game Design>
+<Community Management, connectedTo, Game Publishing>
+<Community Management, connectedTo, User Interface Design>
+<Console Game Development, connectedTo, Physics Simulation>
+<Game Design, connectedTo, Live Operations>
+<Game Design, connectedTo, Marketing and Promotion>
+<Game Publishing, connectedTo, Asset Creation>
+<In_Game Economy Design, connectedTo, Game Publishing>
+<In_Game Economy Design, connectedTo, Quality Assurance Testing>
+<Localization, connectedTo, Character Design>
+<Localization, connectedTo, Community Management>
+<Marketing and Promotion, connectedTo, Narrative Design>
+<Marketing and Promotion, partOf, Marketing and Promotion>
+<Monetization Strategy, partOf, Monetization Strategy>
+<Monetization Strategy, tests, Bug Fixing>
+<Narrative Design, connectedTo, Player Feedback Integration>
+<Narrative Design, partOf, Narrative Design>
+<PC Game Development, connectedTo, Community Management>
+<PC Game Development, connectedTo, Game Publishing>
+<PC Game Development, connectedTo, Player Feedback Integration>
+<Physics Simulation, connectedTo, Sound Design>
+<Player Feedback Integration, connectedTo, Console Game Development>
+<Quality Assurance Testing, connectedTo, Game Publishing>
+<Sound Design, connectedTo, Asset Creation>
+<Sound Design, connectedTo, Community Management>
+<Sound Design, connectedTo, Game Publishing>
+<Sound Design, connectedTo, Localization>
+<User Interface Design, connectedTo, Game Publishing>
+<User Interface Design, connectedTo, In_Game Economy Design>
+<Virtual Reality Gaming, connectedTo, Community Management>
+<Virtual Reality Gaming, partOf, Virtual Reality Gaming>
diff --git a/test/graphviz/scanned_hard/graphviz_298.dot b/test/graphviz/scanned_hard/graphviz_298.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b703676e5392d979f05a35da1fde3ba2de83e78d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_298.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=TD
+	N0 [label="Music Distribution" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N1 [label="Digital Audio Workstation Operation" color="#AF56A6" fillcolor="#DDCEDD" shape=oval style=filled]
+	N2 [label="Music Licensing" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N3 [label="Synthesizer Programming" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N4 [label="Artist Management" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+	N5 [label="Sound System Design" color="#03A9F4" fillcolor="#B3E5FC" shape=folder style=filled]
+	N6 [label="Music for Film or TV or Games" color="#03A9F4" fillcolor="#B3E5FC" shape=folder style=filled]
+	N7 [label="Music Therapy" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+	N8 [label="Fan Engagement Strategy" color="#AF56A6" fillcolor="#DDCEDD" shape=octagon style=filled]
+	N9 [label="Tour Management" color="#AF56A6" fillcolor="#DDCEDD" shape=ellipse style=filled]
+	N10 [label="Royalty Collection" color="#AB47BC" fillcolor="#F3E5F5" shape=parallelogram style=filled]
+	N11 [label=Ticketing color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+	N12 [label="Crowdfunding for Music Projects" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N13 [label="Sound Design for Media" color="#03A9F4" fillcolor="#B3E5FC" shape=hexagon style=filled]
+	N14 [label="Copyright Management" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N15 [label="Vocal Performance" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N16 [label="Merchandise Sales" color="#03A9F4" fillcolor="#B3E5FC" shape=Mdiamond style=filled]
+	N17 [label="Music Theory Analysis" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N18 [label="Music Production" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N19 [label=Performance color="#AF56A6" fillcolor="#DDCEDD" shape=ellipse style=filled]
+	S0 [label="" color="#AB47BC" fillcolor="#F3E5F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#AF56A6" fillcolor="#DDCEDD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#AF56A6" fillcolor="#DDCEDD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Music Publishing" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Streaming Platform Management" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+		nest0_1 [label=Songwriting color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label=Arrangement labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Music Festival Organization" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+		nest1_1 [label=Sampling color="#AF56A6" fillcolor="#DDCEDD" shape=parallelogram style=filled]
+		nest1_0 -> nest1_1 [color="#AF56A6" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#AF56A6" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=captures color="#AF56A6" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=funds color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [label=produces color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N14 -> N15 [label=sells color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N15 -> N16 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N16 -> N17 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N17 -> N18 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N18 -> N19 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N4 -> nest0_0 [label=mixes color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> nest1_0 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	nest1_1 -> N13 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N15 -> S0 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	S0 -> N17 [label=writes color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	S0 -> N19 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	S0 -> N18 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N6 -> M0 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N12 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M1 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	M1 -> N7 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_298.txt b/test/graphviz/scanned_hard/graphviz_298.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ebb4378cc0ac13a9146c9471305215f7e48afb49
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_298.txt
@@ -0,0 +1,38 @@
+<Artist Management, captures, Sound System Design>
+<Artist Management, connectedTo, Crowdfunding for Music Projects>
+<Artist Management, connectedTo, Music Festival Organization>
+<Artist Management, mixes, Streaming Platform Management>
+<Copyright Management, sells, Vocal Performance>
+<Crowdfunding for Music Projects, produces, Sound Design for Media>
+<Digital Audio Workstation Operation, connectedTo, Music Licensing>
+<Digital Audio Workstation Operation, connectedTo, Music Therapy>
+<Fan Engagement Strategy, connectedTo, Tour Management>
+<Merchandise Sales, connectedTo, Music Theory Analysis>
+<Music Distribution, connectedTo, Digital Audio Workstation Operation>
+<Music Festival Organization, connectedTo, Sampling>
+<Music Festival Organization, partOf, Music Festival Organization>
+<Music Licensing, connectedTo, Crowdfunding for Music Projects>
+<Music Licensing, connectedTo, Music Therapy>
+<Music Licensing, connectedTo, Synthesizer Programming>
+<Music Production, connectedTo, Performance>
+<Music Theory Analysis, connectedTo, Music Production>
+<Music Therapy, connectedTo, Fan Engagement Strategy>
+<Music for Film or TV or Games, connectedTo, Crowdfunding for Music Projects>
+<Music for Film or TV or Games, connectedTo, Music Therapy>
+<Royalty Collection, connectedTo, Ticketing>
+<Sampling, connectedTo, Sound Design for Media>
+<Sampling, partOf, Sampling>
+<Songwriting, connectedTo, Music Licensing>
+<Songwriting, partOf, Songwriting>
+<Sound Design for Media, connectedTo, Copyright Management>
+<Sound System Design, funds, Music for Film or TV or Games>
+<Streaming Platform Management, connectedTo, Songwriting>
+<Streaming Platform Management, partOf, Streaming Platform Management>
+<Synthesizer Programming, connectedTo, Artist Management>
+<Synthesizer Programming, connectedTo, Music Therapy>
+<Ticketing, connectedTo, Crowdfunding for Music Projects>
+<Tour Management, connectedTo, Royalty Collection>
+<Vocal Performance, connectedTo, Merchandise Sales>
+<Vocal Performance, connectedTo, Music Production>
+<Vocal Performance, connectedTo, Performance>
+<Vocal Performance, writes, Music Theory Analysis>
diff --git a/test/graphviz/scanned_hard/graphviz_299.dot b/test/graphviz/scanned_hard/graphviz_299.dot
new file mode 100644
index 0000000000000000000000000000000000000000..58c5862e1c893c2f4e8f51bed98c782d611517ea
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_299.dot
@@ -0,0 +1,81 @@
+digraph {
+	rankdir=BT
+	N0 [label="Film Scoring" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N1 [label="Prop Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=parallelogram style=filled]
+	N2 [label="Green Production Practices" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N3 [label="Art Direction" color="#DCE775" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N4 [label="Audience Research" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N5 [label="Crew Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=octagon style=filled]
+	N6 [label=Editing color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N7 [label="Legal Compliance" color="#7E57C2" fillcolor="#D1C4E9" shape=Mdiamond style=filled]
+	N8 [label="Special Effects" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N9 [label="Screenwriting Workshops" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N10 [label="Insurance Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=parallelogram style=filled]
+	N11 [label="Distribution Strategy" color="#7E57C2" fillcolor="#D1C4E9" shape=plaintext style=filled]
+	N12 [label="Costume Design" color="#DCE775" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N13 [label="Tax Incentive Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=folder style=filled]
+	N14 [label="Digital Asset Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+	N15 [label="Lighting Design" color="#CD8FF2" fillcolor="#ECCFF5" shape=plaintext style=filled]
+	N16 [label=Directing color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	S0 [label="" color="#DCE775" fillcolor="#F9FBE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#7E57C2" fillcolor="#D1C4E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#7E57C2" fillcolor="#D1C4E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#DCE775" fillcolor="#F9FBE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#CD8FF2" fillcolor="#ECCFF5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Production Scheduling" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Stunt Coordination" color="#7E57C2" fillcolor="#D1C4E9" shape=diamond style=filled]
+		nest0_1 [label="Archiving and Preservation" color="#DCE775" fillcolor="#F9FBE7" shape=hexagon style=filled]
+		nest0_2 [label="Marketing and Publicity" color="#CD8FF2" fillcolor="#ECCFF5" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Talent Negotiation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Virtual Production Techniques" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+		nest1_1 [label="Production Accounting" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+		nest1_2 [label="Film Festival Submission" color="#7E57C2" fillcolor="#D1C4E9" shape=oval style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [label=mixes color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N14 -> N15 [label=secures color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N15 -> N16 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N11 -> nest0_0 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N11 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest1_0 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N1 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	S0 -> N14 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	S0 -> N12 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N5 -> S1 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	S1 -> N12 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> S2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N12 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N7 [label=produces color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N4 [color="#7E57C2" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [label=records color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M1 [color="#7E57C2" dir=forward penwidth=1.5 style=solid]
+	M1 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_300.txt b/test/graphviz/scanned_hard/graphviz_300.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c7ed1eaefe904811787d85efebe7ff110d984c80
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_300.txt
@@ -0,0 +1,39 @@
+<Audience Engagement, connectedTo, User_Generated Content Curation>
+<Content Localization, connectedTo, Video Scripting>
+<Content Localization, partOf, Content Localization>
+<Content Management System Operation, connectedTo, Interview Conduct>
+<Content Management System Operation, connectedTo, Newsletter Creation>
+<Content Repurposing, connectedTo, Content Management System Operation>
+<Content Repurposing, connectedTo, Interactive Content Development>
+<Content Repurposing, connectedTo, Interview Conduct>
+<Content Repurposing, connectedTo, Keyword Research>
+<Content Strategy Development, connectedTo, Interview Conduct>
+<Content Strategy Development, partOf, Content Strategy Development>
+<Distribution Planning, connectedTo, Interview Conduct>
+<Distribution Planning, connectedTo, Webinar Hosting>
+<Fact_Checking, connectedTo, Audience Analysis>
+<Influencer Collaboration, connectedTo, Content Strategy Development>
+<Influencer Collaboration, partOf, Influencer Collaboration>
+<Interactive Content Development, connectedTo, Content Localization>
+<Interactive Content Development, partOf, Interactive Content Development>
+<Interview Conduct, engages, Fact_Checking>
+<Keyword Research, connectedTo, Video Scripting>
+<Newsletter Creation, connectedTo, Audience Analysis>
+<Newsletter Creation, connectedTo, Distribution Planning>
+<Newsletter Creation, connectedTo, Fact_Checking>
+<Transcribing Audio or Video, connectedTo, Audience Engagement>
+<Transcribing Audio or Video, connectedTo, Interview Conduct>
+<Transcribing Audio or Video, connectedTo, Voice Acting or Narration>
+<User_Generated Content Curation, connectedTo, Content Management System Operation>
+<User_Generated Content Curation, connectedTo, Distribution Planning>
+<User_Generated Content Curation, connectedTo, Fact_Checking>
+<User_Generated Content Curation, connectedTo, Interview Conduct>
+<Video Scripting, connectedTo, Audience Engagement>
+<Voice Acting or Narration, connectedTo, Audience Analysis>
+<Voice Acting or Narration, connectedTo, Audience Engagement>
+<Voice Acting or Narration, connectedTo, Content Management System Operation>
+<Voice Acting or Narration, connectedTo, Content Repurposing>
+<Voice Acting or Narration, connectedTo, Distribution Planning>
+<Voice Acting or Narration, connectedTo, Keyword Research>
+<Webinar Hosting, connectedTo, Influencer Collaboration>
+<Webinar Hosting, partOf, Webinar Hosting>
diff --git a/test/graphviz/scanned_hard/graphviz_302.dot b/test/graphviz/scanned_hard/graphviz_302.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d4841a8cb62ba560a38a4cafd017b0c87c337016
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_302.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=LR
+	N0 [label="Data Warehousing" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N1 [label="Report Automation" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N2 [label="Data Source Integration" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N3 [label="Data Storytelling for Business" color="#BDBDBD" fillcolor="#F5F5F5" shape=octagon style=filled]
+	N4 [label="Performance Monitoring" color="#FFB2A5" fillcolor="#FFDCD6" shape=parallelogram style=filled]
+	N5 [label="Customer Behavior Insights" color="#FFB2A5" fillcolor="#FFDCD6" shape=folder style=filled]
+	N6 [label="Competitive Analysis" color="#FFE470" fillcolor="#FFFAE0" shape=plaintext style=filled]
+	N7 [label="Sales Forecasting" color="#BDBDBD" fillcolor="#F5F5F5" shape=diamond style=filled]
+	N8 [label="Data Governance Policies" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	N9 [label="Supply Chain Optimization" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+	N10 [label="Mobile BI Development" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+	N11 [label="Cloud BI Solutions" color="#FFE470" fillcolor="#FFFAE0" shape=octagon style=filled]
+	N12 [label="Risk Assessment Reporting" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+	N13 [label="Query Optimization" color="#FFB2A5" fillcolor="#FFDCD6" shape=folder style=filled]
+	N14 [label="Embedded Analytics" color="#FFE470" fillcolor="#FFFAE0" shape=parallelogram style=filled]
+	N15 [label="Market Trend Analysis" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	N16 [label="Business Process Improvement" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+	S0 [label="" color="#FFE470" fillcolor="#FFFAE0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFE470" fillcolor="#FFFAE0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#FFB2A5" fillcolor="#FFDCD6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#BDBDBD" fillcolor="#F5F5F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#BDBDBD" fillcolor="#F5F5F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#FFB2A5" fillcolor="#FFDCD6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Real_time BI Dashboards" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Data Modeling" color="#BDBDBD" fillcolor="#F5F5F5" shape=parallelogram style=filled]
+		nest0_1 [label="Operational Efficiency Measurement" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="BI Platform Administration" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Self_Service BI Tools" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+		nest1_1 [label="Prescriptive Analytics Implementation" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+		nest1_2 [label="Strategic Planning Support" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=secures color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	N15 -> N16 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	N8 -> nest0_0 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N7 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest1_0 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N16 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> S0 [color="#FFB2A5" dir=forward penwidth=1.5 style=solid]
+	S0 -> N13 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N15 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N10 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	N8 -> S1 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	S1 -> N14 [label=monitors color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N13 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S2 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	S2 -> N16 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N5 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N15 [label=supports color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	M0 -> N5 [color="#FFB2A5" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> M2 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N9 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_303.dot b/test/graphviz/scanned_hard/graphviz_303.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b72fc91b6e88e92bf68cc89b5254c66874a3b007
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_303.dot
@@ -0,0 +1,76 @@
+digraph {
+	rankdir=TD
+	N0 [label="Campaign Performance Tracking" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+	N1 [label="Video Marketing" color="#6FE1D5" fillcolor="#C9EFEC" shape=box style=filled]
+	N2 [label="Email Marketing" color="#FFDA4E" fillcolor="#FFE88D" shape=folder style=filled]
+	N3 [label="Mobile Marketing" color="#FFC107" fillcolor="#FFECB3" shape=parallelogram style=filled]
+	N4 [label="Lead Generation" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N5 [label="Customer Journey Mapping" color="#FFC107" fillcolor="#FFECB3" shape=Mdiamond style=filled]
+	N6 [label="Event Marketing" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N7 [label="Customer Relationship Management" color="#6FE1D5" fillcolor="#C9EFEC" shape=octagon style=filled]
+	N8 [label="Direct Mail Marketing" color="#FFC107" fillcolor="#FFECB3" shape=octagon style=filled]
+	N9 [label="Guerilla Marketing" color="#6FE1D5" fillcolor="#C9EFEC" shape=diamond style=filled]
+	N10 [label=Telemarketing color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N11 [label="Website Design and Optimization" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N12 [label="Experiential Marketing" color="#FFC107" fillcolor="#FFECB3" shape=Mdiamond style=filled]
+	N13 [label="Search Engine Optimization" color="#FFC107" fillcolor="#FFECB3" shape=hexagon style=filled]
+	N14 [label="Influencer Marketing" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	N15 [label="Pricing Strategy" color="#6FE1D5" fillcolor="#C9EFEC" shape=box style=filled]
+	N16 [label="Public Relations" color="#FFDA4E" fillcolor="#FFE88D" shape=hexagon style=filled]
+	N17 [label="Target Audience Identification" color="#FFDA4E" fillcolor="#FFE88D" shape=plaintext style=filled]
+	N18 [label="Market Research" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+	S0 [label="" color="#6FE1D5" fillcolor="#C9EFEC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFDA4E" fillcolor="#FFE88D" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFC107" fillcolor="#FFECB3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Brand Reputation Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Customer Segmentation" color="#6FE1D5" fillcolor="#C9EFEC" shape=diamond style=filled]
+		nest0_1 [label="Personalization Strategies" color="#6FE1D5" fillcolor="#C9EFEC" shape=oval style=filled]
+		nest0_2 [label="Distribution Channel Management" color="#FFDA4E" fillcolor="#FFE88D" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [label="runs SEM" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Product Launch Strategy" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Remarketing Campaigns" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+		nest1_1 [label="Partnership Marketing" color="#FFDA4E" fillcolor="#FFE88D" shape=hexagon style=filled]
+		nest1_2 [label="Search Engine Marketing" color="#FFDA4E" fillcolor="#FFE88D" shape=oval style=filled]
+		nest1_0 -> nest1_1 [color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N15 -> N16 [label="guerilla marketing" color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N16 -> N17 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N17 -> N18 [color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	N13 -> nest0_0 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N7 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest1_2 -> N18 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N14 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N16 [color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	S0 -> N18 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	S0 -> N17 [color="#FFDA4E" dir=forward penwidth=1.5 style=solid]
+	N6 -> S1 [color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	S1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N9 [color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	N10 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [label="generates leads" color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M0 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_304.dot b/test/graphviz/scanned_hard/graphviz_304.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cf55639144203add7ca5ddf3903a36922c3f4a3f
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_304.dot
@@ -0,0 +1,69 @@
+digraph {
+	rankdir=BT
+	N0 [label="Social Media Ads" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N1 [label="Brand Awareness Campaigns" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N2 [label="Ad Copywriting" color="#61CAC3" fillcolor="#C2E8E6" shape=octagon style=filled]
+	N3 [label="A or B Testing for Ads" color="#F7BEE0" fillcolor="#FAEBF3" shape=hexagon style=filled]
+	N4 [label="Regulatory Compliance for Ads" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N5 [label="Ad Platform Management" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N6 [label="Landing Page Optimization" color="#CDDC39" fillcolor="#E6EE9C" shape=hexagon style=filled]
+	N7 [label="Ad Network Management" color="#CDDC39" fillcolor="#E6EE9C" shape=oval style=filled]
+	N8 [label="Demographic Targeting" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N9 [label="Outdoor Advertising" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N10 [label="Ad Creative Development" color="#CDDC39" fillcolor="#E6EE9C" shape=octagon style=filled]
+	N11 [label="Campaign Planning" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+	N12 [label="Interactive Ad Formats" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	S0 [label="" color="#61CAC3" fillcolor="#C2E8E6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#CDDC39" fillcolor="#E6EE9C" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#CDDC39" fillcolor="#E6EE9C" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Budget Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Performance Tracking" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+		nest0_1 [label="Video Advertising" color="#F7BEE0" fillcolor="#FAEBF3" shape=folder style=filled]
+		nest0_2 [label="Television Advertising" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Ad Placement Optimization" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label=Geo_Targeting color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+		nest1_1 [label="Audience Segmentation for Ads" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N10 -> nest0_0 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N7 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	N9 -> nest1_0 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	nest1_1 -> N12 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N6 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N4 -> S1 [color="#CDDC39" dir=forward penwidth=1.5 style=solid]
+	S1 -> N12 [color="#CDDC39" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N11 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N6 -> S2 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	S2 -> N11 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	S2 -> N10 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N12 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	S2 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> M1 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	M1 -> N7 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_304.txt b/test/graphviz/scanned_hard/graphviz_304.txt
new file mode 100644
index 0000000000000000000000000000000000000000..51b757d01d5c4268483812a6def23dab4b20a0cd
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_304.txt
@@ -0,0 +1,36 @@
+<A or B Testing for Ads, connectedTo, Regulatory Compliance for Ads>
+<Ad Copywriting, connectedTo, A or B Testing for Ads>
+<Ad Copywriting, connectedTo, Ad Network Management>
+<Ad Creative Development, connectedTo, Campaign Planning>
+<Ad Creative Development, connectedTo, Performance Tracking>
+<Ad Network Management, connectedTo, Demographic Targeting>
+<Ad Platform Management, connectedTo, Ad Network Management>
+<Ad Platform Management, connectedTo, Landing Page Optimization>
+<Audience Segmentation for Ads, connectedTo, Interactive Ad Formats>
+<Audience Segmentation for Ads, partOf, Audience Segmentation for Ads>
+<Brand Awareness Campaigns, connectedTo, Ad Copywriting>
+<Brand Awareness Campaigns, connectedTo, Ad Network Management>
+<Campaign Planning, connectedTo, Interactive Ad Formats>
+<Demographic Targeting, connectedTo, Outdoor Advertising>
+<Geo_Targeting, connectedTo, Audience Segmentation for Ads>
+<Geo_Targeting, partOf, Geo_Targeting>
+<Landing Page Optimization, connectedTo, Ad Creative Development>
+<Landing Page Optimization, connectedTo, Ad Network Management>
+<Landing Page Optimization, connectedTo, Campaign Planning>
+<Landing Page Optimization, connectedTo, Demographic Targeting>
+<Landing Page Optimization, connectedTo, Interactive Ad Formats>
+<Landing Page Optimization, connectedTo, Outdoor Advertising>
+<Outdoor Advertising, connectedTo, Ad Creative Development>
+<Outdoor Advertising, connectedTo, Geo_Targeting>
+<Performance Tracking, connectedTo, Video Advertising>
+<Performance Tracking, partOf, Performance Tracking>
+<Regulatory Compliance for Ads, connectedTo, Ad Platform Management>
+<Regulatory Compliance for Ads, connectedTo, Campaign Planning>
+<Regulatory Compliance for Ads, connectedTo, Interactive Ad Formats>
+<Regulatory Compliance for Ads, connectedTo, Landing Page Optimization>
+<Regulatory Compliance for Ads, connectedTo, Outdoor Advertising>
+<Social Media Ads, connectedTo, Brand Awareness Campaigns>
+<Television Advertising, connectedTo, Ad Network Management>
+<Television Advertising, partOf, Television Advertising>
+<Video Advertising, connectedTo, Television Advertising>
+<Video Advertising, partOf, Video Advertising>
diff --git a/test/graphviz/scanned_hard/graphviz_305.dot b/test/graphviz/scanned_hard/graphviz_305.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1b7629296094bc30aff23357b1fa19b2a0d1a092
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_305.dot
@@ -0,0 +1,81 @@
+digraph {
+	rankdir=BT
+	N0 [label="Decentralized Network Design" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N1 [label="Consensus Mechanism Development" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N2 [label="Cryptographic Hashing" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N3 [label="Zero_Knowledge Proofs" color="#FFC085" fillcolor="#FFDAB9" shape=hexagon style=filled]
+	N4 [label="Healthcare Data Management" color="#9575CD" fillcolor="#EDE7F6" shape=oval style=filled]
+	N5 [label="Public Blockchain Deployment" color="#9575CD" fillcolor="#EDE7F6" shape=Mdiamond style=filled]
+	N6 [label="Decentralized Finance Protocols" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N7 [label="Cross_Chain Bridges" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N8 [label="Initial Coin Offerings" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N9 [label="Real Estate Tokenization" color="#9575CD" fillcolor="#EDE7F6" shape=folder style=filled]
+	N10 [label="Energy Trading on Blockchain" color="#AABEC6" fillcolor="#E0E6E9" shape=oval style=filled]
+	N11 [label="Interoperability Solutions" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N12 [label="Sharding Implementation" color="#AABEC6" fillcolor="#E0E6E9" shape=octagon style=filled]
+	N13 [label="Smart Contract Development" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+	N14 [label="Mining Operations" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N15 [label="Decentralized Applications Development" color="#AABEC6" fillcolor="#E0E6E9" shape=octagon style=filled]
+	N16 [label="Gaming on Blockchain" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N17 [label="Identity Verification on Blockchain" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	S0 [label="" color="#9575CD" fillcolor="#EDE7F6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#AABEC6" fillcolor="#E0E6E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#AABEC6" fillcolor="#E0E6E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFC085" fillcolor="#FFDAB9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#AABEC6" fillcolor="#E0E6E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Wallet Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Distributed Ledger Technology" color="#9575CD" fillcolor="#EDE7F6" shape=diamond style=filled]
+		nest0_1 [label="Tokenomics Design" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Non_Fungible Token Creation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Enterprise Blockchain Solutions" color="#9575CD" fillcolor="#EDE7F6" shape=parallelogram style=filled]
+		nest1_1 [label="Security Auditing for Blockchains" color="#FFC085" fillcolor="#FFDAB9" shape=hexagon style=filled]
+		nest1_0 -> nest1_1 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#FFC085" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N15 -> N16 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N16 -> N17 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N12 -> nest0_0 [color="#FFC085" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N17 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N16 -> nest1_0 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	nest1_1 -> N12 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N1 -> S0 [color="#FFC085" dir=forward penwidth=1.5 style=solid]
+	S0 -> N3 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N12 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N16 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N14 -> S1 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	S1 -> N17 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N16 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N11 -> S2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S2 -> N16 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N14 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N9 -> M0 [label="identifies users" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N13 -> M0 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N11 -> M0 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M0 [label="powers games" color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	M0 -> N15 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M1 [label="processes payments" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [label="builds NFTs" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_306.txt b/test/graphviz/scanned_hard/graphviz_306.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d9d86418a14dff8b0a718dc675f853dac70df911
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_306.txt
@@ -0,0 +1,27 @@
+<Blockchain Integration, connectedTo, Stablecoin Design>
+<Blockchain Integration, partOf, Blockchain Integration>
+<Cross_chain Swaps, connectedTo, Smart Contract Auditing>
+<Cross_chain Swaps, connectedTo, Stablecoin Design>
+<Cryptocurrency Education, connectedTo, Decentralized Exchange Operation>
+<Cryptocurrency Education, partOf, Cryptocurrency Education>
+<Custodial Services, connectedTo, Cross_chain Swaps>
+<Custodial Services, connectedTo, Fiat On or Off Ramps>
+<Decentralized Exchange Operation, connectedTo, Web3 Integration>
+<Decentralized Exchange Operation, partOf, Decentralized Exchange Operation>
+<Exchange Listing, connectedTo, Transaction Processing>
+<Exchange Listing, connectedTo, Venture Capital Funding>
+<Fiat On or Off Ramps, connectedTo, Smart Contract Auditing>
+<Fiat On or Off Ramps, connectedTo, Token Generation Event>
+<Mining Algorithm Design, connectedTo, Web3 Integration>
+<Mining Algorithm Design, partOf, Mining Algorithm Design>
+<Smart Contract Auditing, connectedTo, Exchange Listing>
+<Stablecoin Design, connectedTo, Mining Algorithm Design>
+<Stablecoin Design, partOf, Stablecoin Design>
+<Token Generation Event, connectedTo, Blockchain Integration>
+<Token Generation Event, connectedTo, Cross_chain Swaps>
+<Token Generation Event, connectedTo, Exchange Listing>
+<Token Generation Event, connectedTo, Venture Capital Funding>
+<Token Generation Event, connectedTo, Web3 Integration>
+<Transaction Processing, connectedTo, Cryptocurrency Education>
+<Transaction Processing, partOf, Transaction Processing>
+<Web3 Integration, connectedTo, Cross_chain Swaps>
diff --git a/test/graphviz/scanned_hard/graphviz_307.txt b/test/graphviz/scanned_hard/graphviz_307.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9a9339d53d0a91474410d03e7e98c16f1d749e0e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_307.txt
@@ -0,0 +1,36 @@
+<Customer Support for Backers, connectedTo, Platform Fee Management>
+<Customer Support for Backers, partOf, Customer Support for Backers>
+<Debt Crowdfunding, connectedTo, Fulfillment Planning>
+<Debt Crowdfunding, connectedTo, Reward Tier Design>
+<Equity Crowdfunding, connectedTo, International Crowdfunding>
+<Escrow Management, connectedTo, Investor Relations>
+<Escrow Management, connectedTo, Platform Fee Management>
+<Escrow Management, connectedTo, Post_Campaign Updates>
+<Escrow Management, connectedTo, Tax Implications of Crowdfunding>
+<Financial Projection Analysis, connectedTo, Investor Relations>
+<Financial Projection Analysis, partOf, Financial Projection Analysis>
+<Fulfillment Planning, connectedTo, Legal Compliance>
+<Fulfillment Planning, partOf, Fulfillment Planning>
+<Funding Period Management, connectedTo, Customer Support for Backers>
+<Funding Period Management, partOf, Funding Period Management>
+<International Crowdfunding, connectedTo, Pitch Deck Preparation>
+<International Crowdfunding, connectedTo, Tax Implications of Crowdfunding>
+<Investor Relations, connectedTo, Debt Crowdfunding>
+<Legal Compliance, connectedTo, Funding Period Management>
+<Legal Compliance, partOf, Legal Compliance>
+<Manufacturing Planning, connectedTo, Financial Projection Analysis>
+<Manufacturing Planning, partOf, Manufacturing Planning>
+<Marketing Strategy, connectedTo, Equity Crowdfunding>
+<Pitch Deck Preparation, analyzes data, Social Media Promotion>
+<Pitch Deck Preparation, connectedTo, Escrow Management>
+<Pitch Deck Preparation, connectedTo, Tax Implications of Crowdfunding>
+<Platform Fee Management, connectedTo, Post_Campaign Updates>
+<Platform Fee Management, connectedTo, Tax Implications of Crowdfunding>
+<Post_Campaign Updates, connectedTo, Debt Crowdfunding>
+<Post_Campaign Updates, connectedTo, Investor Relations>
+<Post_Campaign Updates, connectedTo, Tax Implications of Crowdfunding>
+<Reward_Based Crowdfunding, partOf, Reward_Based Crowdfunding>
+<Reward_Based Crowdfunding, selects platforms, Manufacturing Planning>
+<Social Media Promotion, connectedTo, Reward_Based Crowdfunding>
+<Social Media Promotion, partOf, Social Media Promotion>
+<Tax Implications of Crowdfunding, connectedTo, Investor Relations>
diff --git a/test/graphviz/scanned_hard/graphviz_308.dot b/test/graphviz/scanned_hard/graphviz_308.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7a14aef12a3d6105c1a824792f1da351707c8667
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_308.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=TD
+	N0 [label="Connected Vehicles" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N1 [label="Compliance with IoT Regulations" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N2 [label="Wearable Technology" color="#FFC2C2" fillcolor="#FFEBEB" shape=parallelogram style=filled]
+	N3 [label="Asset Tracking" color="#FFC2C2" fillcolor="#FFEBEB" shape=hexagon style=filled]
+	N4 [label="Cloud Platform Integration" color="#CD8FF2" fillcolor="#ECCFF5" shape=hexagon style=filled]
+	N5 [label="Smart Home Devices" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N6 [label="Real_time Data Streaming" color="#FFC2C2" fillcolor="#FFEBEB" shape=oval style=filled]
+	N7 [label="Power Management for Devices" color="#CD8FF2" fillcolor="#ECCFF5" shape=plaintext style=filled]
+	N8 [label="Device Prototyping" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N9 [label="Over_the_Air Updates" color="#CD8FF2" fillcolor="#ECCFF5" shape=Mdiamond style=filled]
+	N10 [label="Gateway Development" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N11 [label="Data Analysis in Cloud" color="#FFC2C2" fillcolor="#FFEBEB" shape=plaintext style=filled]
+	N12 [label="Data Processing at Edge" color="#03A9F4" fillcolor="#B3E5FC" shape=diamond style=filled]
+	N13 [label="API Development for IoT" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+	N14 [label="Interoperability Standards" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N15 [label="Supply Chain Optimization" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+	N16 [label="Transportation IoT" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N17 [label="Industrial IoT" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N18 [label="IoT Device Certification" color="#FFC2C2" fillcolor="#FFEBEB" shape=oval style=filled]
+	N19 [label="Sensor Integration" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	S2 [label="" color="#FFC2C2" fillcolor="#FFEBEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#CD8FF2" fillcolor="#ECCFF5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#CD8FF2" fillcolor="#ECCFF5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Edge Computing for IoT" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Security Implementation" color="#03A9F4" fillcolor="#B3E5FC" shape=octagon style=filled]
+		nest0_1 [label="Smart Manufacturing" color="#CD8FF2" fillcolor="#ECCFF5" shape=plaintext style=filled]
+		nest0_0 -> nest0_1 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Environmental Monitoring" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="AI at the Edge" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+		nest1_1 [label="Smart City Sensors" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+		nest1_2 [label="Data Privacy in IoT" color="#03A9F4" fillcolor="#B3E5FC" shape=hexagon style=filled]
+		nest1_0 -> nest1_1 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N14 -> N15 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N15 -> N16 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N16 -> N17 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N17 -> N18 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N18 -> N19 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N15 -> nest0_0 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N9 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	N14 -> nest1_0 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	nest1_2 -> N17 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> S2 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	S2 -> N18 [label="configures APIs" color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	S2 -> N15 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	S2 -> N17 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N8 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	N9 -> M1 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N14 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [label="streams data" color="#000000" dir=forward penwidth=1.5 style=solid]
+	M1 -> N16 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N12 -> nest0_1 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_31.dot b/test/graphviz/scanned_hard/graphviz_31.dot
new file mode 100644
index 0000000000000000000000000000000000000000..70f97616630af61a643038f25d5ecdfdc1703184
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_31.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=TD
+	N0 [label="Sports Marketing" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N1 [label="Sports Technology Integration" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+	N2 [label="Sports Medicine" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N3 [label="Fan Engagement" color="#61CAC3" fillcolor="#C2E8E6" shape=folder style=filled]
+	N4 [label="Fan Experience Enhancement" color="#FFEB3B" fillcolor="#FFF9C4" shape=oval style=filled]
+	N5 [label="Fitness Conditioning" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N6 [label="Tournament Organization" color="#C2B2F0" fillcolor="#EFE6FF" shape=box style=filled]
+	N7 [label="Community Sports Programs" color="#C2B2F0" fillcolor="#EFE6FF" shape=Mdiamond style=filled]
+	N8 [label="Stadium Operations" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N0 -> N1 [label=rehabilitates color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=tests color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#C2B2F0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=recruits color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=optimizes color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=licenses color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=educates color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N4 [color="#C2B2F0" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_310.txt b/test/graphviz/scanned_hard/graphviz_310.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2e2b2bba1d830a185256cbb034622006a6d83d11
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_310.txt
@@ -0,0 +1,32 @@
+<Auto_Scaling Configurations, connectedTo, Container Orchestration>
+<Auto_Scaling Configurations, connectedTo, Database as a Service>
+<Auto_Scaling Configurations, connectedTo, Serverless Computing>
+<Auto_Scaling Configurations, connectedTo, Virtual Machine Management>
+<Big Data Services in Cloud, architects solutions, Auto_Scaling Configurations>
+<Big Data Services in Cloud, connectedTo, Container Orchestration>
+<Big Data Services in Cloud, connectedTo, Private Cloud Management>
+<Cloud FinOps, connectedTo, Auto_Scaling Configurations>
+<Cloud FinOps, connectedTo, Container Orchestration>
+<Cloud FinOps, connectedTo, Multi_Cloud Management>
+<Cloud Firewall Configuration, connectedTo, Database as a Service>
+<Cloud Firewall Configuration, partOf, Cloud Firewall Configuration>
+<Cloud Native Application Development, offers MLaaS, Cloud Firewall Configuration>
+<Cloud Native Application Development, partOf, Cloud Native Application Development>
+<Cloud Security, connectedTo, Cost Optimization in Cloud>
+<Cloud Security, partOf, Cloud Security>
+<Container Orchestration, connectedTo, Database as a Service>
+<Cost Optimization in Cloud, connectedTo, Cloud Native Application Development>
+<Cost Optimization in Cloud, partOf, Cost Optimization in Cloud>
+<Database as a Service, connectedTo, Private Cloud Management>
+<Edge_to_Cloud Integration, connectedTo, Auto_Scaling Configurations>
+<Edge_to_Cloud Integration, delivers SaaS, Big Data Services in Cloud>
+<Identity and Access Management, connectedTo, Network Configuration in Cloud>
+<Identity and Access Management, partOf, Identity and Access Management>
+<Machine Learning as a Service, configures networks, Cloud FinOps>
+<Multi_Cloud Management, connectedTo, Edge_to_Cloud Integration>
+<Multi_Cloud Management, connectedTo, Identity and Access Management>
+<Network Configuration in Cloud, connectedTo, Virtual Machine Management>
+<Network Configuration in Cloud, partOf, Network Configuration in Cloud>
+<Private Cloud Management, connectedTo, Serverless Computing>
+<Serverless Computing, connectedTo, Cloud Security>
+<Serverless Computing, connectedTo, Virtual Machine Management>
diff --git a/test/graphviz/scanned_hard/graphviz_313.dot b/test/graphviz/scanned_hard/graphviz_313.dot
new file mode 100644
index 0000000000000000000000000000000000000000..32c762d4fbbd3564e75a1de90c4ebf9e190e4e56
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_313.dot
@@ -0,0 +1,65 @@
+digraph {
+	rankdir=LR
+	N0 [label="Game Development" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N1 [label="Database Design" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N2 [label="Scalability Design" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N3 [label="Desktop Application Development" color="#73C6BC" fillcolor="#D0EFEE" shape=plaintext style=filled]
+	N4 [label=Documentation color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N5 [label="Frontend Development" color="#03A9F4" fillcolor="#B3E5FC" shape=plaintext style=filled]
+	N6 [label=Containerization color="#03A9F4" fillcolor="#B3E5FC" shape=Mdiamond style=filled]
+	N7 [label="Mobile Application Development" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	S0 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#73C6BC" fillcolor="#D0EFEE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#03A9F4" fillcolor="#B3E5FC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#03A9F4" fillcolor="#B3E5FC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label=Maintenance labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Operating System Development" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+		nest0_1 [label="Backend Development" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Continuous Integration" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Algorithm Design" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+		nest1_1 [label="Version Control" color="#73C6BC" fillcolor="#D0EFEE" shape=plaintext style=filled]
+		nest1_2 [label="Web Application Development" color="#03A9F4" fillcolor="#B3E5FC" shape=parallelogram style=filled]
+		nest1_3 [label="Performance Optimization" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+		nest1_0 -> nest1_1 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N6 -> nest0_0 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N3 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest1_0 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N7 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N3 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [label="uses containers" color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N4 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> S1 [color="#03A9F4" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	S1 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S2 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N7 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	S2 -> N5 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#03A9F4" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> M1 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	M1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_313.txt b/test/graphviz/scanned_hard/graphviz_313.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5a4996898537aad868831e904b40f876a9f46021
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_313.txt
@@ -0,0 +1,33 @@
+<Algorithm Design, connectedTo, Version Control>
+<Algorithm Design, partOf, Algorithm Design>
+<Backend Development, connectedTo, Desktop Application Development>
+<Backend Development, partOf, Backend Development>
+<Containerization, connectedTo, Mobile Application Development>
+<Containerization, connectedTo, Operating System Development>
+<Database Design, connectedTo, Desktop Application Development>
+<Database Design, connectedTo, Documentation>
+<Database Design, connectedTo, Mobile Application Development>
+<Database Design, connectedTo, Scalability Design>
+<Database Design, uses containers, Containerization>
+<Desktop Application Development, connectedTo, Algorithm Design>
+<Desktop Application Development, connectedTo, Containerization>
+<Desktop Application Development, connectedTo, Documentation>
+<Desktop Application Development, connectedTo, Frontend Development>
+<Desktop Application Development, connectedTo, Mobile Application Development>
+<Documentation, connectedTo, Containerization>
+<Documentation, connectedTo, Frontend Development>
+<Frontend Development, connectedTo, Containerization>
+<Game Development, connectedTo, Containerization>
+<Game Development, connectedTo, Database Design>
+<Game Development, connectedTo, Documentation>
+<Operating System Development, connectedTo, Backend Development>
+<Operating System Development, partOf, Operating System Development>
+<Performance Optimization, connectedTo, Mobile Application Development>
+<Performance Optimization, partOf, Performance Optimization>
+<Scalability Design, connectedTo, Containerization>
+<Scalability Design, connectedTo, Desktop Application Development>
+<Scalability Design, connectedTo, Documentation>
+<Version Control, connectedTo, Web Application Development>
+<Version Control, partOf, Version Control>
+<Web Application Development, connectedTo, Performance Optimization>
+<Web Application Development, partOf, Web Application Development>
diff --git a/test/graphviz/scanned_hard/graphviz_315.dot b/test/graphviz/scanned_hard/graphviz_315.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d5318a1907ceb5c059f64e926141755703acc9dd
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_315.dot
@@ -0,0 +1,56 @@
+digraph {
+	rankdir=TD
+	N0 [label="Deployment to App Stores" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	N1 [label="Geolocation Services" color="#F7BEE0" fillcolor="#FAEBF3" shape=octagon style=filled]
+	N2 [label="Cloud Backend for Mobile" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N3 [label="Payment Gateway Integration" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	N4 [label="Security Implementation" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N5 [label="Subscription Management" color="#FFE69C" fillcolor="#FFF9D4" shape=oval style=filled]
+	N6 [label="Concept Development" color="#F7BEE0" fillcolor="#FAEBF3" shape=diamond style=filled]
+	N7 [label="Push Notification Implementation" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	N8 [label="Testing and Debugging" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	N9 [label="Real_time Communication Features" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	S0 [label="" color="#9FA9E1" fillcolor="#D6D9F0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#9FA9E1" fillcolor="#D6D9F0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label=Prototyping labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="API Development" color="#F7BEE0" fillcolor="#FAEBF3" shape=oval style=filled]
+		nest0_1 [label="Updates and Maintenance" color="#9FA9E1" fillcolor="#D6D9F0" shape=oval style=filled]
+		nest0_2 [label="User Interface Design" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+		nest0_3 [label="Analytics Tracking" color="#9FA9E1" fillcolor="#D6D9F0" shape=folder style=filled]
+		nest0_0 -> nest0_1 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Accessibility Features" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Microphone Integration" color="#F7BEE0" fillcolor="#FAEBF3" shape=octagon style=filled]
+		nest1_1 [label="Wearable Device Integration" color="#FFE69C" fillcolor="#FFF9D4" shape=diamond style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label="controls IoT devices" color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest0_0 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N9 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest1_0 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	nest1_1 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> S0 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N1 -> S2 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	S2 -> N8 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N6 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N5 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_315.txt b/test/graphviz/scanned_hard/graphviz_315.txt
new file mode 100644
index 0000000000000000000000000000000000000000..534af04714f06252cc4887e4ec9d1a1e8662ae06
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_315.txt
@@ -0,0 +1,28 @@
+<API Development, connectedTo, Updates and Maintenance>
+<API Development, partOf, API Development>
+<Analytics Tracking, connectedTo, Real_time Communication Features>
+<Analytics Tracking, partOf, Analytics Tracking>
+<Cloud Backend for Mobile, connectedTo, Payment Gateway Integration>
+<Cloud Backend for Mobile, connectedTo, Real_time Communication Features>
+<Cloud Backend for Mobile, connectedTo, Subscription Management>
+<Concept Development, connectedTo, Push Notification Implementation>
+<Deployment to App Stores, connectedTo, Geolocation Services>
+<Deployment to App Stores, connectedTo, Subscription Management>
+<Geolocation Services, connectedTo, API Development>
+<Geolocation Services, connectedTo, Concept Development>
+<Geolocation Services, connectedTo, Testing and Debugging>
+<Geolocation Services, controls IoT devices, Cloud Backend for Mobile>
+<Microphone Integration, connectedTo, Wearable Device Integration>
+<Microphone Integration, partOf, Microphone Integration>
+<Payment Gateway Integration, connectedTo, Microphone Integration>
+<Payment Gateway Integration, connectedTo, Security Implementation>
+<Push Notification Implementation, connectedTo, Testing and Debugging>
+<Security Implementation, connectedTo, Subscription Management>
+<Subscription Management, connectedTo, Concept Development>
+<Testing and Debugging, connectedTo, Real_time Communication Features>
+<Updates and Maintenance, connectedTo, User Interface Design>
+<Updates and Maintenance, partOf, Updates and Maintenance>
+<User Interface Design, connectedTo, Analytics Tracking>
+<User Interface Design, partOf, User Interface Design>
+<Wearable Device Integration, connectedTo, Push Notification Implementation>
+<Wearable Device Integration, partOf, Wearable Device Integration>
diff --git a/test/graphviz/scanned_hard/graphviz_316.dot b/test/graphviz/scanned_hard/graphviz_316.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3f47659ac7753d8815223bac438ed0d678ac764b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_316.dot
@@ -0,0 +1,65 @@
+digraph {
+	rankdir=BT
+	N0 [label="Campaign Management" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N1 [label="Social Media Audits" color="#E57373" fillcolor="#FFEBEE" shape=octagon style=filled]
+	N2 [label="Crisis Management" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N3 [label="Brand Voice Development" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+	N4 [label="Hashtag Research" color="#E57373" fillcolor="#FFEBEE" shape=folder style=filled]
+	N5 [label="Polls and Quizzes Creation" color="#90A4AE" fillcolor="#ECEFF1" shape=octagon style=filled]
+	N6 [label="Reputation Management" color="#BDAFA8" fillcolor="#E4E0DF" shape=octagon style=filled]
+	N7 [label="Performance Analytics" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N8 [label="Ethical Use of Social Media" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+	N9 [label="Follower Growth Monitoring" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N10 [label="Content Strategy" color="#BDAFA8" fillcolor="#E4E0DF" shape=hexagon style=filled]
+	N11 [label="Reporting and Optimization" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N12 [label="Community Management" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+	N13 [label="Platform Selection" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N14 [label="Personal Branding on Social Media" color="#BDAFA8" fillcolor="#E4E0DF" shape=ellipse style=filled]
+	S0 [label="" color="#90A4AE" fillcolor="#ECEFF1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#90A4AE" fillcolor="#ECEFF1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#BDAFA8" fillcolor="#E4E0DF" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label=Cross_Promotion labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Influencer Collaboration" color="#E57373" fillcolor="#FFEBEE" shape=hexagon style=filled]
+		nest0_1 [label="Group Management" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+		nest0_2 [label="User_Generated Content Curation" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#BDAFA8" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Reels or Short Video Production" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Direct Messaging Strategy" color="#BDAFA8" fillcolor="#E4E0DF" shape=hexagon style=filled]
+		nest1_1 [label="Social Listening" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#BDAFA8" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [label="drives sales" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N13 -> nest0_0 [color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N4 [label="engages audiences" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> nest1_0 [color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N14 [label="manages crises" color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N11 -> S0 [color="#BDAFA8" dir=forward penwidth=1.5 style=solid]
+	S0 -> N13 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N14 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#BDAFA8" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	M0 -> N6 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N10 -> M2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M2 [label="shares links" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M2 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	M2 -> N12 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_316.txt b/test/graphviz/scanned_hard/graphviz_316.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6375b28531f492dc9c96e2d3e9aad60ee677a6d9
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_316.txt
@@ -0,0 +1,33 @@
+<Brand Voice Development, connectedTo, Hashtag Research>
+<Brand Voice Development, shares links, Community Management>
+<Campaign Management, connectedTo, Reputation Management>
+<Campaign Management, connectedTo, Social Media Audits>
+<Community Management, drives sales, Platform Selection>
+<Content Strategy, connectedTo, Community Management>
+<Content Strategy, connectedTo, Reporting and Optimization>
+<Crisis Management, connectedTo, Brand Voice Development>
+<Crisis Management, connectedTo, Community Management>
+<Crisis Management, connectedTo, Reputation Management>
+<Direct Messaging Strategy, connectedTo, Social Listening>
+<Direct Messaging Strategy, partOf, Direct Messaging Strategy>
+<Ethical Use of Social Media, connectedTo, Direct Messaging Strategy>
+<Ethical Use of Social Media, connectedTo, Follower Growth Monitoring>
+<Follower Growth Monitoring, connectedTo, Content Strategy>
+<Group Management, connectedTo, User_Generated Content Curation>
+<Group Management, partOf, Group Management>
+<Hashtag Research, connectedTo, Polls and Quizzes Creation>
+<Influencer Collaboration, connectedTo, Group Management>
+<Influencer Collaboration, partOf, Influencer Collaboration>
+<Performance Analytics, connectedTo, Ethical Use of Social Media>
+<Platform Selection, connectedTo, Influencer Collaboration>
+<Platform Selection, connectedTo, Personal Branding on Social Media>
+<Polls and Quizzes Creation, connectedTo, Reputation Management>
+<Reporting and Optimization, connectedTo, Community Management>
+<Reporting and Optimization, connectedTo, Personal Branding on Social Media>
+<Reporting and Optimization, connectedTo, Platform Selection>
+<Reputation Management, connectedTo, Performance Analytics>
+<Social Listening, manages crises, Personal Branding on Social Media>
+<Social Listening, partOf, Social Listening>
+<Social Media Audits, connectedTo, Crisis Management>
+<User_Generated Content Curation, engages audiences, Hashtag Research>
+<User_Generated Content Curation, partOf, User_Generated Content Curation>
diff --git a/test/graphviz/scanned_hard/graphviz_317.dot b/test/graphviz/scanned_hard/graphviz_317.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f1f762b6e533ae65a5ea4b3ded67b5b7fb7e86c0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_317.dot
@@ -0,0 +1,60 @@
+digraph {
+	rankdir=LR
+	N0 [label="Schema Markup Implementation" color="#4CAF50" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N1 [label="Technical SEO" color="#F44336" fillcolor="#FFCDD2" shape=plaintext style=filled]
+	N2 [label="Academic Search" color="#F44336" fillcolor="#FFCDD2" shape=plaintext style=filled]
+	N3 [label="Video Search" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	N4 [label="Query Processing" color="#F7BEE0" fillcolor="#FAEBF3" shape=parallelogram style=filled]
+	N5 [label="Shopping Search" color="#4CAF50" fillcolor="#C8E6C9" shape=Mdiamond style=filled]
+	N6 [label="Off_Page SEO" color="#4CAF50" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N7 [label="Competitor Keyword Analysis" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	N8 [label="Local SEO" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	S0 [label="" color="#4CAF50" fillcolor="#C8E6C9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#F44336" fillcolor="#FFCDD2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#F44336" fillcolor="#FFCDD2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Google Analytics Integration" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Google My Business Management" color="#4CAF50" fillcolor="#C8E6C9" shape=ellipse style=filled]
+		nest0_1 [label="Algorithm Updates Monitoring" color="#4CAF50" fillcolor="#C8E6C9" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="User Experience for Search" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Crawling Websites" color="#F7BEE0" fillcolor="#FAEBF3" shape=hexagon style=filled]
+		nest1_1 [label="Featured Snippets Optimization" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+		nest1_2 [label="Indexing Content" color="#F7BEE0" fillcolor="#FAEBF3" shape=oval style=filled]
+		nest1_3 [label="Paid Search Advertising" color="#4CAF50" fillcolor="#C8E6C9" shape=plaintext style=filled]
+		nest1_0 -> nest1_1 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest1_2 -> nest1_3 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#4CAF50" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label="optimizes off_page" color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label="indexes academic papers" color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N6 -> nest0_0 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N7 [color="#4CAF50" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest1_0 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N3 [color="#4CAF50" dir=forward penwidth=1.5 style=solid]
+	N1 -> S0 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N6 [color="#4CAF50" dir=forward penwidth=1.5 style=solid]
+	S0 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#4CAF50" dir=forward penwidth=1.5 style=dashed]
+	N5 -> S2 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N7 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	S2 -> N8 [color="#4CAF50" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#4CAF50" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M1 [color="#4CAF50" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M1 [color="#4CAF50" dir=forward penwidth=1.5 style=solid]
+	M1 -> N6 [color="#4CAF50" dir=forward penwidth=1.5 style=solid]
+	N3 -> M2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_318.dot b/test/graphviz/scanned_hard/graphviz_318.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7de57a325a8708d31bb9bd5e2c8653b3cebe2d66
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_318.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=BT
+	N0 [label="Decentralized Identifiers" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+	N1 [label="Portable Identities" color="#AABEC6" fillcolor="#E0E6E9" shape=oval style=filled]
+	N2 [label="Digital Certificates" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N3 [label="Credential Management" color="#6FE1D5" fillcolor="#C9EFEC" shape=octagon style=filled]
+	N4 [label="User Provisioning" color="#6FE1D5" fillcolor="#C9EFEC" shape=hexagon style=filled]
+	N5 [label="Biometric Authentication" color="#6FE1D5" fillcolor="#C9EFEC" shape=Mdiamond style=filled]
+	N6 [label="Identity Threat Detection and Response" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	N7 [label="Access Governance" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	S0 [label="" color="#AABEC6" fillcolor="#E0E6E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#6FE1D5" fillcolor="#C9EFEC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#6FE1D5" fillcolor="#C9EFEC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFC107" fillcolor="#FFECB3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#6FE1D5" fillcolor="#C9EFEC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Risk_Based Authentication" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Verifiable Credentials" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+		nest0_1 [label="Identity Proofing" color="#6FE1D5" fillcolor="#C9EFEC" shape=parallelogram style=filled]
+		nest0_2 [label="Fraud Detection in Identity" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+		nest0_3 [label="Adaptive Authentication" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+		nest0_0 -> nest0_1 [label="uses blockchain" color="#FFC107" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Digital Wallets for Identity" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Privileged Access Management" color="#AABEC6" fillcolor="#E0E6E9" shape=plaintext style=filled]
+		nest1_1 [label="Customer Identity and Access Management" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+		nest1_2 [label="Compliance with Data Protection Regulations" color="#AABEC6" fillcolor="#E0E6E9" shape=hexagon style=filled]
+		nest1_3 [label="Single Sign_On" color="#6FE1D5" fillcolor="#C9EFEC" shape=folder style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [label="integrates social logins" color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="assesses risks" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label="ensures privacy" color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N1 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest1_0 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	nest1_3 -> N4 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N0 -> S0 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N3 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	S0 -> N2 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	S0 -> N6 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S1 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	S1 -> N5 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N7 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N0 -> S2 [color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	S2 -> N2 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N7 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N4 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N5 -> M0 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [label="implements PAM" color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [label="federates identities" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N7 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N4 -> M1 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [label="provides IDaaS" color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	M1 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_318.txt b/test/graphviz/scanned_hard/graphviz_318.txt
new file mode 100644
index 0000000000000000000000000000000000000000..58e779f55621010c10e57ad50a63f85c251875de
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_318.txt
@@ -0,0 +1,38 @@
+<Adaptive Authentication, connectedTo, Portable Identities>
+<Adaptive Authentication, partOf, Adaptive Authentication>
+<Biometric Authentication, connectedTo, Access Governance>
+<Biometric Authentication, connectedTo, Privileged Access Management>
+<Biometric Authentication, ensures privacy, Identity Threat Detection and Response>
+<Compliance with Data Protection Regulations, integrates social logins, Single Sign_On>
+<Compliance with Data Protection Regulations, partOf, Compliance with Data Protection Regulations>
+<Credential Management, assesses risks, User Provisioning>
+<Credential Management, connectedTo, Access Governance>
+<Credential Management, connectedTo, Biometric Authentication>
+<Credential Management, connectedTo, Identity Threat Detection and Response>
+<Customer Identity and Access Management, connectedTo, Compliance with Data Protection Regulations>
+<Customer Identity and Access Management, partOf, Customer Identity and Access Management>
+<Decentralized Identifiers, connectedTo, Access Governance>
+<Decentralized Identifiers, connectedTo, Credential Management>
+<Decentralized Identifiers, connectedTo, Digital Certificates>
+<Decentralized Identifiers, connectedTo, Identity Threat Detection and Response>
+<Decentralized Identifiers, connectedTo, Portable Identities>
+<Decentralized Identifiers, connectedTo, User Provisioning>
+<Digital Certificates, connectedTo, Credential Management>
+<Fraud Detection in Identity, connectedTo, Adaptive Authentication>
+<Fraud Detection in Identity, partOf, Fraud Detection in Identity>
+<Identity Proofing, connectedTo, Fraud Detection in Identity>
+<Identity Proofing, partOf, Identity Proofing>
+<Identity Threat Detection and Response, connectedTo, Access Governance>
+<Portable Identities, connectedTo, Digital Certificates>
+<Portable Identities, connectedTo, Verifiable Credentials>
+<Portable Identities, federates identities, Access Governance>
+<Portable Identities, provides IDaaS, Access Governance>
+<Privileged Access Management, connectedTo, Customer Identity and Access Management>
+<Privileged Access Management, partOf, Privileged Access Management>
+<Single Sign_On, connectedTo, User Provisioning>
+<Single Sign_On, partOf, Single Sign_On>
+<User Provisioning, connectedTo, Access Governance>
+<User Provisioning, connectedTo, Biometric Authentication>
+<User Provisioning, implements PAM, Access Governance>
+<Verifiable Credentials, partOf, Verifiable Credentials>
+<Verifiable Credentials, uses blockchain, Identity Proofing>
diff --git a/test/graphviz/scanned_hard/graphviz_319.txt b/test/graphviz/scanned_hard/graphviz_319.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dd118481ae9ef281f3f08eac8588f77cec336dd4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_319.txt
@@ -0,0 +1,36 @@
+<AI in Online Education, connectedTo, Feedback and Grading>
+<Accessibility Features, connectedTo, Online Tutoring>
+<Bootcamp Development, connectedTo, Competency_Based Education>
+<Bootcamp Development, connectedTo, Content Creation>
+<Bootcamp Development, connectedTo, Digital Badges>
+<Bootcamp Development, connectedTo, Virtual Classroom Facilitation>
+<Collaborative Projects, connectedTo, Language Learning Platforms>
+<Competency_Based Education, connectedTo, Digital Badges>
+<Content Creation, connectedTo, Enrollment and Retention Strategies>
+<Content Creation, partOf, Content Creation>
+<Course Evaluation, connectedTo, Discussion Forum Moderation>
+<Digital Badges, connectedTo, Virtual Classroom Facilitation>
+<Discussion Forum Moderation, connectedTo, Collaborative Projects>
+<Enrollment and Retention Strategies, connectedTo, Parent or Guardian Communication>
+<Enrollment and Retention Strategies, partOf, Enrollment and Retention Strategies>
+<Feedback and Grading, creates courses, Student Engagement Strategies>
+<Gamification in Education, connectedTo, Open Educational Resources Integration>
+<Language Learning Platforms, connectedTo, Virtual Classroom Facilitation>
+<Language Learning Platforms, creates analytics dashboards, Gamification in Education>
+<Learning Analytics, digitizes curriculum, Language Learning Platforms>
+<Learning Analytics, partOf, Learning Analytics>
+<Learning Management System Administration, connectedTo, Language Learning Platforms>
+<Learning Management System Administration, connectedTo, Virtual Field Trips>
+<Micro_credential Programs, connectedTo, Learning Analytics>
+<Micro_credential Programs, partOf, Micro_credential Programs>
+<Online Tutoring, connectedTo, Bootcamp Development>
+<Online Tutoring, connectedTo, Competency_Based Education>
+<Online Tutoring, connectedTo, Virtual Classroom Facilitation>
+<Open Educational Resources Integration, connectedTo, Accessibility Features>
+<Open Educational Resources Integration, gamifies experiences, Virtual Classroom Facilitation>
+<Parent or Guardian Communication, partOf, Parent or Guardian Communication>
+<Parent or Guardian Communication, provides formative assessment, Collaborative Projects>
+<Student Engagement Strategies, connectedTo, Course Evaluation>
+<Student Engagement Strategies, connectedTo, Micro_credential Programs>
+<Virtual Field Trips, connectedTo, AI in Online Education>
+<Virtual Field Trips, connectedTo, Language Learning Platforms>
diff --git a/test/graphviz/scanned_hard/graphviz_32.dot b/test/graphviz/scanned_hard/graphviz_32.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cfa6e9bb9a09a982cf252f5fbcab8bfa0f4ea8c0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_32.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=LR
+	N0 [label="Supply Chain Transparency" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N1 [label="Trend Research" color="#FFD54F" fillcolor="#FFF8E1" shape=hexagon style=filled]
+	N2 [label="PR and Media Outreach" color="#FFD54F" fillcolor="#FFF8E1" shape=diamond style=filled]
+	N3 [label="Sample Creation" color="#EAEFA5" fillcolor="#FDFCEB" shape=plaintext style=filled]
+	N4 [label=Distribution color="#AABEC6" fillcolor="#E0E6E9" shape=hexagon style=filled]
+	N5 [label="Seasonal Collection Planning" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N6 [label="Retail Sales" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N7 [label="Influencer Collaboration" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N0 -> N1 [color="#FFD54F" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=innovates color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=sells color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=cuts color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N2 -> N5 [label=recycles color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_320.txt b/test/graphviz/scanned_hard/graphviz_320.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dd80a2e7a1762d00996099df331cecee3e1af17e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_320.txt
@@ -0,0 +1,33 @@
+<Assessment Creation, connectedTo, Course Retirement Planning>
+<Assessment Creation, connectedTo, University Partnerships>
+<Completion Rate Optimization, connectedTo, Global Accessibility Features>
+<Completion Rate Optimization, partOf, Completion Rate Optimization>
+<Continuous Course Improvement, connectedTo, Engagement Metrics Tracking>
+<Continuous Course Improvement, partOf, Continuous Course Improvement>
+<Course Audit Options, connectedTo, Mobile Learning Experience>
+<Course Audit Options, partOf, Course Audit Options>
+<Course Pilot Testing, connectedTo, Assessment Creation>
+<Course Promotion, connectedTo, Financial Aid for Learners>
+<Course Promotion, partOf, Course Promotion>
+<Course Retirement Planning, connectedTo, Micro_credential Stacking>
+<Employer Recognition, connectedTo, Assessment Creation>
+<Employer Recognition, connectedTo, Course Retirement Planning>
+<Employer Recognition, connectedTo, Subscription Models>
+<Engagement Metrics Tracking, connectedTo, Learner Analytics>
+<Financial Aid for Learners, connectedTo, Instructor_Led Sessions>
+<Global Accessibility Features, connectedTo, Course Promotion>
+<Global Accessibility Features, partOf, Global Accessibility Features>
+<Instructor_Led Sessions, connectedTo, Completion Rate Optimization>
+<Instructor_Led Sessions, connectedTo, Course Audit Options>
+<Instructor_Led Sessions, connectedTo, Engagement Metrics Tracking>
+<Micro_credential Stacking, connectedTo, Financial Aid for Learners>
+<Mobile Learning Experience, connectedTo, Continuous Course Improvement>
+<Mobile Learning Experience, partOf, Mobile Learning Experience>
+<Subscription Models, connectedTo, Assessment Creation>
+<Subscription Models, connectedTo, Course Pilot Testing>
+<Subscription Models, connectedTo, Instructor_Led Sessions>
+<Subscription Models, evaluates effectiveness, Micro_credential Stacking>
+<Technical Infrastructure for Scale, connectedTo, Course Retirement Planning>
+<University Partnerships, connectedTo, Course Retirement Planning>
+<University Partnerships, connectedTo, Engagement Metrics Tracking>
+<University Partnerships, connectedTo, Technical Infrastructure for Scale>
diff --git a/test/graphviz/scanned_hard/graphviz_321.dot b/test/graphviz/scanned_hard/graphviz_321.dot
new file mode 100644
index 0000000000000000000000000000000000000000..23c59bca89090b064a7e7c922dd9a9ef2c573872
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_321.dot
@@ -0,0 +1,80 @@
+digraph {
+	rankdir=TD
+	N0 [label="Performance Prediction Models" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	N1 [label="Study Material Design" color="#F7BEE0" fillcolor="#FAEBF3" shape=parallelogram style=filled]
+	N2 [label="Math Skills Refresher" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+	N3 [label="Exam Day Tips" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+	N4 [label="Interactive Exercises" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+	N5 [label="Memory Techniques Training" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N6 [label="Critical Thinking Development" color="#81C784" fillcolor="#F1F8E9" shape=diamond style=filled]
+	N7 [label="Question Bank Management" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N8 [label="Reading Comprehension Drills" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+	N9 [label="Virtual Proctoring" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N10 [label="Score Analysis" color="#F7BEE0" fillcolor="#FAEBF3" shape=parallelogram style=filled]
+	N11 [label="Certification Exam Prep" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N12 [label="Subject Matter Review" color="#81C784" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N13 [label="Video Lecture Production" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	S0 [label="" color="#81C784" fillcolor="#F1F8E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#81C784" fillcolor="#F1F8E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#F44336" fillcolor="#FFCDD2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#81C784" fillcolor="#F1F8E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#F44336" fillcolor="#FFCDD2" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#F7BEE0" fillcolor="#FAEBF3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="AI_Powered Tutoring" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Study Group Facilitation" color="#F7BEE0" fillcolor="#FAEBF3" shape=hexagon style=filled]
+		nest0_1 [label="Motivation Coaching" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+		nest0_2 [label="Test_Taking Strategies" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+		nest0_3 [label="College Entrance Exam Prep" color="#F44336" fillcolor="#FFCDD2" shape=Mdiamond style=filled]
+		nest0_0 -> nest0_1 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Online Course Delivery" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Adaptive Learning Algorithms" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+		nest1_1 [label="Writing Skills Improvement" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+		nest1_2 [label="Stress Management for Exams" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=markets color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N3 -> nest0_0 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N7 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N9 -> nest1_0 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	nest1_2 -> N5 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	N7 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N11 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N8 -> S1 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	S1 -> N11 [label=analyzes color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N12 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S2 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N6 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	S2 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N3 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N7 -> M1 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N5 -> M1 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> M2 [color="#F7BEE0" dir=forward penwidth=1.5 style=solid]
+	N1 -> M2 [color="#F44336" dir=forward penwidth=1.5 style=solid]
+	M2 -> N4 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_322.txt b/test/graphviz/scanned_hard/graphviz_322.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4e318df862dfd6fd56208a4144526de7facb4d64
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_322.txt
@@ -0,0 +1,38 @@
+<Accent Reduction Coaching, engages, Reading Comprehension>
+<Adult Language Learning, distributes, Progress Tracking>
+<Adult Language Learning, provides, Speaking Practice>
+<Audio Lessons, connectedTo, Listening Comprehension>
+<Audio Lessons, connectedTo, Travel Language Essentials>
+<Audio Lessons, connectedTo, Vocabulary Acquisition>
+<Business Language Training, connectedTo, Reading Comprehension>
+<Business Language Training, partOf, Business Language Training>
+<Contextual Learning, connectedTo, Audio Lessons>
+<Curriculum Customization, connects, Role_Playing Scenarios>
+<Curriculum Customization, partOf, Curriculum Customization>
+<Error Correction Feedback, connectedTo, Accent Reduction Coaching>
+<Gamified Learning Activities, connectedTo, Language Exchange Programs>
+<Gamified Learning Activities, partOf, Gamified Learning Activities>
+<Instructor_Led Classes, connectedTo, Gamified Learning Activities>
+<Instructor_Led Classes, partOf, Instructor_Led Classes>
+<Language Assessment Tests, connectedTo, Error Correction Feedback>
+<Language Assessment Tests, connectedTo, Online Tutoring Sessions>
+<Language Assessment Tests, connectedTo, Reading Comprehension>
+<Language Assessment Tests, publishes, Accent Reduction Coaching>
+<Language Exchange Programs, connectedTo, Accent Reduction Coaching>
+<Language Exchange Programs, partOf, Language Exchange Programs>
+<Listening Comprehension, connectedTo, Error Correction Feedback>
+<Native Speaker Interaction, connectedTo, Business Language Training>
+<Native Speaker Interaction, partOf, Native Speaker Interaction>
+<Online Tutoring Sessions, connectedTo, Error Correction Feedback>
+<Online Tutoring Sessions, connectedTo, Instructor_Led Classes>
+<Online Tutoring Sessions, connectedTo, Listening Comprehension>
+<Online Tutoring Sessions, practices, Reading Comprehension>
+<Progress Tracking, connectedTo, Speaking Practice>
+<Progress Tracking, connectedTo, Writing Exercises>
+<Reading Comprehension, connectedTo, Vocabulary Acquisition>
+<Role_Playing Scenarios, connectedTo, Native Speaker Interaction>
+<Role_Playing Scenarios, partOf, Role_Playing Scenarios>
+<Speaking Practice, connectedTo, Contextual Learning>
+<Travel Language Essentials, connectedTo, Language Assessment Tests>
+<Writing Exercises, connectedTo, Curriculum Customization>
+<Writing Exercises, connectedTo, Speaking Practice>
diff --git a/test/graphviz/scanned_hard/graphviz_323.txt b/test/graphviz/scanned_hard/graphviz_323.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7aa49cc3b816b0a2f4cb954ea99adb75ab278915
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_323.txt
@@ -0,0 +1,34 @@
+<Art Therapy, connectedTo, Relapse Prevention>
+<Bipolar Disorder Management, connectedTo, Medication Management>
+<Bipolar Disorder Management, partOf, Bipolar Disorder Management>
+<Child & Adolescent Therapy, secures, Art Therapy>
+<Cognitive Behavioral Therapy, connectedTo, Inpatient Treatment Coordination>
+<Cognitive Behavioral Therapy, provides, Mindfulness Practice>
+<Coping Skill Development, complies, Child & Adolescent Therapy>
+<Coping Skill Development, connectedTo, Art Therapy>
+<Coping Skill Development, connectedTo, Cognitive Behavioral Therapy>
+<Coping Skill Development, connectedTo, Relapse Prevention>
+<Digital Mental Health Tools, connectedTo, Medication Management>
+<Grief Counseling, connectedTo, Art Therapy>
+<Grief Counseling, connectedTo, Child & Adolescent Therapy>
+<Grief Counseling, rehabilitates, Mental Health Screening>
+<Inpatient Treatment Coordination, connectedTo, Bipolar Disorder Management>
+<Inpatient Treatment Coordination, partOf, Inpatient Treatment Coordination>
+<Medication Management, connectedTo, Diagnosis and Assessment>
+<Mental Health Screening, connectedTo, Child & Adolescent Therapy>
+<Mental Health Screening, monitors, Coping Skill Development>
+<Mindfulness Practice, connectedTo, Diagnosis and Assessment>
+<Mindfulness Practice, connectedTo, Digital Mental Health Tools>
+<Mindfulness Practice, connectedTo, Medication Management>
+<Psychiatric Evaluation, connectedTo, Relapse Prevention>
+<Psychiatric Evaluation, partOf, Psychiatric Evaluation>
+<Relapse Prevention, connectedTo, Cognitive Behavioral Therapy>
+<Relapse Prevention, connectedTo, Trauma Therapy>
+<Schizophrenia Management, connectedTo, Art Therapy>
+<Schizophrenia Management, connectedTo, Grief Counseling>
+<Telehealth Counseling, connectedTo, Therapy Session>
+<Telehealth Counseling, partOf, Telehealth Counseling>
+<Therapy Session, partOf, Therapy Session>
+<Therapy Session, refers, Psychiatric Evaluation>
+<Trauma Therapy, connectedTo, Telehealth Counseling>
+<Trauma Therapy, partOf, Trauma Therapy>
diff --git a/test/graphviz/scanned_hard/graphviz_324.txt b/test/graphviz/scanned_hard/graphviz_324.txt
new file mode 100644
index 0000000000000000000000000000000000000000..93e3a02a361741638028805b5cc028204ad84743
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_324.txt
@@ -0,0 +1,42 @@
+<Body Composition Analysis, connectedTo, Public Health Nutrition Programs>
+<Body Composition Analysis, partOf, Body Composition Analysis>
+<Child Nutrition, connectedTo, Community Nutrition Workshops>
+<Child Nutrition, connectedTo, Food Allergy Management>
+<Child Nutrition, connectedTo, Food Label Interpretation>
+<Child Nutrition, connectedTo, Food Preparation Guidance>
+<Child Nutrition, connectedTo, Maternal Nutrition>
+<Community Nutrition Workshops, connectedTo, Metabolism Rate Assessment>
+<Community Nutrition Workshops, connectedTo, Nutritional Counseling>
+<Dietary Assessment, connectedTo, Body Composition Analysis>
+<Dietary Assessment, partOf, Dietary Assessment>
+<Elderly Nutrition, connectedTo, Community Nutrition Workshops>
+<Elderly Nutrition, connectedTo, Disease_Specific Nutrition>
+<Elderly Nutrition, connectedTo, Food Waste Reduction>
+<Elderly Nutrition, connectedTo, Metabolism Rate Assessment>
+<Food Allergy Management, connectedTo, Nutritional Biomarker Analysis>
+<Food Allergy Management, partOf, Food Allergy Management>
+<Food Fortification Strategies, connectedTo, Dietary Assessment>
+<Food Fortification Strategies, partOf, Food Fortification Strategies>
+<Food Label Interpretation, connectedTo, Food Preparation Guidance>
+<Food Preparation Guidance, connectedTo, Supplement Recommendation>
+<Food Preparation Guidance, inspects, Metabolism Rate Assessment>
+<Food Waste Reduction, connectedTo, Disease_Specific Nutrition>
+<Grocery Shopping Guidance, connectedTo, Supplement Recommendation>
+<Grocery Shopping Guidance, partOf, Grocery Shopping Guidance>
+<Gut Microbiome Health, connectedTo, Metabolism Rate Assessment>
+<Gut Microbiome Health, promotes, Elderly Nutrition>
+<Maternal Nutrition, connectedTo, Public Health Nutrition Programs>
+<Metabolism Rate Assessment, connectedTo, Food Waste Reduction>
+<Nutritional Biomarker Analysis, connectedTo, Sustainable Food Systems>
+<Nutritional Biomarker Analysis, partOf, Nutritional Biomarker Analysis>
+<Nutritional Counseling, connectedTo, Food Fortification Strategies>
+<Nutritional Counseling, partOf, Nutritional Counseling>
+<Public Health Nutrition Programs, connectedTo, Food Label Interpretation>
+<Sports Nutrition, advises, Weight Management>
+<Sports Nutrition, connectedTo, Maternal Nutrition>
+<Sports Nutrition, connectedTo, Metabolism Rate Assessment>
+<Supplement Recommendation, connectedTo, Gut Microbiome Health>
+<Sustainable Food Systems, connectedTo, Grocery Shopping Guidance>
+<Sustainable Food Systems, partOf, Sustainable Food Systems>
+<Weight Management, connectedTo, Child Nutrition>
+<Weight Management, connectedTo, Maternal Nutrition>
diff --git a/test/graphviz/scanned_hard/graphviz_325.txt b/test/graphviz/scanned_hard/graphviz_325.txt
new file mode 100644
index 0000000000000000000000000000000000000000..877d360bd93c32ee75d038750fb1d23c0a7f2c16
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_325.txt
@@ -0,0 +1,34 @@
+<Body Composition Analysis, connectedTo, Cardiovascular Training>
+<Body Composition Analysis, connectedTo, Recovery Strategies>
+<Body Composition Analysis, connectedTo, Sports_Specific Training>
+<Cardiovascular Training, connectedTo, Sports_Specific Training>
+<Corporate Wellness Programs, partOf, Corporate Wellness Programs>
+<Corporate Wellness Programs, researches, Sports_Specific Training>
+<Fitness Assessment, connectedTo, Corporate Wellness Programs>
+<Fitness Assessment, partOf, Fitness Assessment>
+<Flexibility Training, connectedTo, Body Composition Analysis>
+<Flexibility Training, connectedTo, Cardiovascular Training>
+<Flexibility Training, connectedTo, Recovery Strategies>
+<Flexibility Training, connectedTo, Sports_Specific Training>
+<Flexibility Training, connectedTo, Yoga Instruction>
+<HIIT Workouts, optimizes, Outdoor Fitness Activities>
+<HIIT Workouts, partOf, HIIT Workouts>
+<Hydration for Exercise, connectedTo, Body Composition Analysis>
+<Online Fitness Coaching, connectedTo, Body Composition Analysis>
+<Online Fitness Coaching, connectedTo, Hydration for Exercise>
+<Online Fitness Coaching, engages, Recovery Strategies>
+<Outdoor Fitness Activities, connectedTo, Fitness Assessment>
+<Outdoor Fitness Activities, partOf, Outdoor Fitness Activities>
+<Personal Training, connectedTo, Yoga Instruction>
+<Personal Training, partOf, Personal Training>
+<Pilates Instruction, connectedTo, Body Composition Analysis>
+<Pilates Instruction, rehabilitates, Online Fitness Coaching>
+<Posture Correction, educates, Weightlifting Techniques>
+<Posture Correction, partOf, Posture Correction>
+<Sports_Specific Training, connectedTo, Recovery Strategies>
+<Weightlifting Techniques, connectedTo, Personal Training>
+<Weightlifting Techniques, partOf, Weightlifting Techniques>
+<Yoga Instruction, connectedTo, HIIT Workouts>
+<Yoga Instruction, connectedTo, Pilates Instruction>
+<Yoga Instruction, personalizes, Body Composition Analysis>
+<Yoga Instruction, predicts, Posture Correction>
diff --git a/test/graphviz/scanned_hard/graphviz_326.txt b/test/graphviz/scanned_hard/graphviz_326.txt
new file mode 100644
index 0000000000000000000000000000000000000000..df4d85dd3a0f06485ff13cb4d95e09358e550d55
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_326.txt
@@ -0,0 +1,38 @@
+<Acupuncture Consultation, connectedTo, Hydrotherapy>
+<Behavior Change Support, complies, Work_Life Balance Coaching>
+<Digital Detox, connectedTo, Stress Management>
+<Digital Detox, programs, Massage Therapy>
+<Emotional Well_being, connectedTo, Self_Care Routine Development>
+<Emotional Well_being, partOf, Emotional Well_being>
+<Employee Wellness Programs, connectedTo, Health Coaching>
+<Employee Wellness Programs, connectedTo, Resilience Building>
+<Financial Wellness Planning, connectedTo, Spiritual Exploration>
+<Financial Wellness Planning, partOf, Financial Wellness Planning>
+<Gut Health for Wellness, connectedTo, Positive Psychology Application>
+<Health Coaching, connectedTo, Emotional Well_being>
+<Health Coaching, partOf, Health Coaching>
+<Holistic Health Assessment, connectedTo, Financial Wellness Planning>
+<Holistic Health Assessment, partOf, Holistic Health Assessment>
+<Hydrotherapy, connectedTo, Resilience Building>
+<Hydrotherapy, personalizes, Longevity Planning>
+<Longevity Planning, connectedTo, Meditation Coaching>
+<Massage Therapy, connectedTo, Gut Health for Wellness>
+<Meditation Coaching, connectedTo, Biofeedback Training>
+<Meditation Coaching, connectedTo, Employee Wellness Programs>
+<Meditation Coaching, connectedTo, Resilience Building>
+<Physical Activity Planning, connectedTo, Acupuncture Consultation>
+<Positive Psychology Application, connectedTo, Acupuncture Consultation>
+<Positive Psychology Application, connectedTo, Hydrotherapy>
+<Positive Psychology Application, connectedTo, Longevity Planning>
+<Positive Psychology Application, connectedTo, Physical Activity Planning>
+<Positive Psychology Application, connectedTo, Resilience Building>
+<Positive Psychology Application, moves, Meditation Coaching>
+<Resilience Building, connectedTo, Biofeedback Training>
+<Self_Care Routine Development, connectedTo, Digital Detox>
+<Self_Care Routine Development, connectedTo, Resilience Building>
+<Spiritual Exploration, connectedTo, Longevity Planning>
+<Spiritual Exploration, partOf, Spiritual Exploration>
+<Stress Management, connectedTo, Holistic Health Assessment>
+<Stress Management, partOf, Stress Management>
+<Work_Life Balance Coaching, connectedTo, Resilience Building>
+<Work_Life Balance Coaching, connectedTo, Self_Care Routine Development>
diff --git a/test/graphviz/scanned_hard/graphviz_327.dot b/test/graphviz/scanned_hard/graphviz_327.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f5a72515263b5dbf9d749112567d589fa35ee8f0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_327.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=TD
+	N0 [label="Project Management" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N1 [label="Hospitality Interior Design" color="#4285F4" fillcolor="#D0E0F8" shape=Mdiamond style=filled]
+	N2 [label="Healthcare Interior Design" color="#B8C0F5" fillcolor="#ECF0FD" shape=diamond style=filled]
+	N3 [label="Installation Supervision" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N4 [label="Site Measurement" color="#61CAC3" fillcolor="#C2E8E6" shape=Mdiamond style=filled]
+	N5 [label="Smart Home Technology Integration" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N6 [label="Mood Board Creation" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N7 [label="Living Room Design" color="#B8C0F5" fillcolor="#ECF0FD" shape=oval style=filled]
+	N8 [label="Universal Design Principles" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N9 [label="Construction Documentation" color="#4285F4" fillcolor="#D0E0F8" shape=diamond style=filled]
+	N10 [label="Color Scheme Selection" color="#61CAC3" fillcolor="#C2E8E6" shape=diamond style=filled]
+	N11 [label="Building Code Compliance" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	N12 [label="Material and Finish Specification" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	S0 [label="" color="#61CAC3" fillcolor="#C2E8E6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#61CAC3" fillcolor="#C2E8E6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#61CAC3" fillcolor="#C2E8E6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#4285F4" fillcolor="#D0E0F8" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Commercial Interior Design" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Budget Management" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+		nest0_1 [label="Client Consultation" color="#B8C0F5" fillcolor="#ECF0FD" shape=Mdiamond style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="3D Rendering" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Bathroom Design" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+		nest1_1 [label="Bedroom Design" color="#B8C0F5" fillcolor="#ECF0FD" shape=octagon style=filled]
+		nest1_0 -> nest1_1 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest0_0 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N5 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N9 -> nest1_0 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	nest1_1 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> S0 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N6 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N12 [color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N2 -> S1 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N12 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	S1 -> N7 [color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N5 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	M0 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M1 [color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N8 [color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_327.txt b/test/graphviz/scanned_hard/graphviz_327.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3a4362ae0c1d37889f22ca41d01d65bbdbb5ce23
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_327.txt
@@ -0,0 +1,33 @@
+<Bathroom Design, connectedTo, Bedroom Design>
+<Bathroom Design, partOf, Bathroom Design>
+<Bedroom Design, connectedTo, Installation Supervision>
+<Bedroom Design, partOf, Bedroom Design>
+<Budget Management, connectedTo, Client Consultation>
+<Budget Management, partOf, Budget Management>
+<Building Code Compliance, connectedTo, Material and Finish Specification>
+<Client Consultation, connectedTo, Smart Home Technology Integration>
+<Client Consultation, partOf, Client Consultation>
+<Color Scheme Selection, connectedTo, Building Code Compliance>
+<Construction Documentation, connectedTo, Bathroom Design>
+<Construction Documentation, connectedTo, Color Scheme Selection>
+<Healthcare Interior Design, connectedTo, Installation Supervision>
+<Healthcare Interior Design, connectedTo, Living Room Design>
+<Healthcare Interior Design, connectedTo, Material and Finish Specification>
+<Healthcare Interior Design, connectedTo, Mood Board Creation>
+<Healthcare Interior Design, connectedTo, Smart Home Technology Integration>
+<Hospitality Interior Design, connectedTo, Healthcare Interior Design>
+<Hospitality Interior Design, connectedTo, Living Room Design>
+<Installation Supervision, connectedTo, Living Room Design>
+<Installation Supervision, connectedTo, Site Measurement>
+<Installation Supervision, connectedTo, Universal Design Principles>
+<Living Room Design, connectedTo, Universal Design Principles>
+<Mood Board Creation, connectedTo, Living Room Design>
+<Project Management, connectedTo, Hospitality Interior Design>
+<Site Measurement, connectedTo, Living Room Design>
+<Site Measurement, connectedTo, Material and Finish Specification>
+<Site Measurement, connectedTo, Mood Board Creation>
+<Site Measurement, connectedTo, Smart Home Technology Integration>
+<Site Measurement, connectedTo, Universal Design Principles>
+<Smart Home Technology Integration, connectedTo, Budget Management>
+<Smart Home Technology Integration, connectedTo, Mood Board Creation>
+<Universal Design Principles, connectedTo, Construction Documentation>
diff --git a/test/graphviz/scanned_hard/graphviz_329.txt b/test/graphviz/scanned_hard/graphviz_329.txt
new file mode 100644
index 0000000000000000000000000000000000000000..41077a41566c022f0cd60b2473cd06d5b4b4816b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_329.txt
@@ -0,0 +1,43 @@
+<Autonomous Flight, analyzes, Environmental Monitoring>
+<Autonomous Flight, connectedTo, Collision Avoidance Systems>
+<Autonomous Flight, connectedTo, Security Surveillance>
+<Autonomous Flight, connectedTo, Thermal Imaging with Drones>
+<Collision Avoidance Systems, connectedTo, Environmental Monitoring>
+<Communication Systems, connectedTo, Geofencing Implementation>
+<Communication Systems, partOf, Communication Systems>
+<Counter_Drone Systems, connectedTo, Payload Customization>
+<Data Processing from Drones, connectedTo, Navigation System>
+<Data Processing from Drones, partOf, Data Processing from Drones>
+<Delivery Services, connectedTo, Counter_Drone Systems>
+<Delivery Services, connectedTo, Drone Maintenance>
+<Delivery Services, connectedTo, Mapping and Surveying>
+<Delivery Services, connectedTo, Precision Agriculture>
+<Delivery Services, connectedTo, Sensor Integration>
+<Delivery Services, connectedTo, Videography>
+<Delivery Services, transmits, Payload Customization>
+<Drone Data Security, connectedTo, Data Processing from Drones>
+<Drone Data Security, partOf, Drone Data Security>
+<Drone Maintenance, connectedTo, Autonomous Flight>
+<Drone Regulations Compliance, connectedTo, Counter_Drone Systems>
+<Ethical Drone Use, connectedTo, Sensor Integration>
+<Ethical Drone Use, educates, Precision Agriculture>
+<Ethical Drone Use, manufactures, Counter_Drone Systems>
+<Flight Planning Software, connectedTo, Videography>
+<Geofencing Implementation, connectedTo, Precision Agriculture>
+<Geofencing Implementation, partOf, Geofencing Implementation>
+<Mapping and Surveying, connectedTo, Remote Piloting Training>
+<Mapping and Surveying, delivers, Sensor Integration>
+<Navigation System, connectedTo, Thermal Imaging with Drones>
+<Navigation System, partOf, Navigation System>
+<Payload Customization, connectedTo, Drone Maintenance>
+<Precision Agriculture, connectedTo, Counter_Drone Systems>
+<Precision Agriculture, connectedTo, Sensor Integration>
+<Remote Piloting Training, connectedTo, Counter_Drone Systems>
+<Remote Piloting Training, connectedTo, Ethical Drone Use>
+<Remote Piloting Training, connectedTo, Sensor Integration>
+<Remote Piloting Training, flies, Drone Data Security>
+<Security Surveillance, connectedTo, Collision Avoidance Systems>
+<Security Surveillance, programs, Communication Systems>
+<Sensor Integration, connectedTo, Flight Planning Software>
+<Thermal Imaging with Drones, connectedTo, Security Surveillance>
+<Videography, connectedTo, Drone Regulations Compliance>
diff --git a/test/graphviz/scanned_hard/graphviz_33.txt b/test/graphviz/scanned_hard/graphviz_33.txt
new file mode 100644
index 0000000000000000000000000000000000000000..39c8a31fa706f29ab887798884857b3e4786eeca
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_33.txt
@@ -0,0 +1,12 @@
+<Candidate Sourcing, records, Conflict Resolution>
+<Change Management, connectedTo, Health and Safety Management>
+<Conflict Resolution, administers, Leave Management>
+<Disciplinary Procedures, connectedTo, HR Analytics>
+<Employee Engagement Surveys, analyzes, Interview Scheduling>
+<Employee Engagement Surveys, connectedTo, Disciplinary Procedures>
+<HR Analytics, strategies, Candidate Sourcing>
+<HR Policy Development, resolves, Employee Engagement Surveys>
+<Interview Scheduling, connectedTo, HR Policy Development>
+<Interview Scheduling, manages, Change Management>
+<Leave Management, integrates, Change Management>
+<Workforce Planning, connectedTo, Interview Scheduling>
diff --git a/test/graphviz/scanned_hard/graphviz_330.txt b/test/graphviz/scanned_hard/graphviz_330.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2e5f7eb9e1cf1d60f77bcc495b0ee5ce300c4f03
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_330.txt
@@ -0,0 +1,30 @@
+<Adaptive Cruise Control, connectedTo, Vehicle_to_Vehicle Communication>
+<Automatic Emergency Braking, connectedTo, Public Acceptance and Trust>
+<Battery Management for EVs, connectedTo, Adaptive Cruise Control>
+<Battery Management for EVs, connectedTo, Map Data Management>
+<Battery Management for EVs, connectedTo, Perception System>
+<Ethical Decision_Making, connectedTo, Sensor Integration>
+<Hardware Design, connectedTo, Predictive Maintenance>
+<Hardware Design, partOf, Hardware Design>
+<Human_Machine Interface, connectedTo, Path Planning>
+<Human_Machine Interface, partOf, Human_Machine Interface>
+<Map Data Management, connectedTo, Perception System>
+<Parking Assistance Systems, connectedTo, Hardware Design>
+<Parking Assistance Systems, connectedTo, Redundancy in Sensors>
+<Path Planning, connectedTo, Perception System>
+<Path Planning, partOf, Path Planning>
+<Pedestrian Detection, connectedTo, Adaptive Cruise Control>
+<Pedestrian Detection, connectedTo, Battery Management for EVs>
+<Pedestrian Detection, connectedTo, Perception System>
+<Perception System, connectedTo, Adaptive Cruise Control>
+<Perception System, connectedTo, Regulatory Compliance>
+<Predictive Maintenance, connectedTo, Automatic Emergency Braking>
+<Predictive Maintenance, partOf, Predictive Maintenance>
+<Public Acceptance and Trust, connectedTo, Accident Reconstruction for AVs>
+<Public Acceptance and Trust, connectedTo, Sensor Integration>
+<Public Acceptance and Trust, localizes, Ethical Decision_Making>
+<Redundancy in Sensors, connectedTo, Adaptive Cruise Control>
+<Regulatory Compliance, connectedTo, Parking Assistance Systems>
+<Sensor Integration, connectedTo, Accident Reconstruction for AVs>
+<Vehicle_to_Vehicle Communication, connectedTo, Automatic Emergency Braking>
+<Vehicle_to_Vehicle Communication, connectedTo, Human_Machine Interface>
diff --git a/test/graphviz/scanned_hard/graphviz_331.txt b/test/graphviz/scanned_hard/graphviz_331.txt
new file mode 100644
index 0000000000000000000000000000000000000000..bdf787415c264bd65aa885d1caf3c474450ad0e2
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_331.txt
@@ -0,0 +1,38 @@
+<Accessibility for Users, connectedTo, Platform Development>
+<Autonomous Shared Vehicles, connectedTo, Smart City Integration>
+<Customer Support, connectedTo, Route Optimization>
+<Demand Prediction, connectedTo, Autonomous Shared Vehicles>
+<Demand Prediction, connectedTo, User Rating and Feedback Systems>
+<Demand Prediction, connectedTo, Vehicle Rebalancing>
+<Demand Prediction, optimizes, User Registration>
+<Driver Management, connectedTo, Policy Advocacy for Shared Mobility>
+<Fleet Management, connectedTo, Vehicle Rebalancing>
+<Fleet Management, partOf, Fleet Management>
+<Geofencing for Operations, connectedTo, Policy Advocacy for Shared Mobility>
+<Geofencing for Operations, connectedTo, Regulatory Compliance>
+<Geofencing for Operations, connectedTo, User Rating and Feedback Systems>
+<Geofencing for Operations, insures, Driver Management>
+<Maintenance Scheduling, connectedTo, Geofencing for Operations>
+<Maintenance Scheduling, connectedTo, Smart City Integration>
+<Micro_mobility Management, connectedTo, Smart City Integration>
+<Micro_mobility Management, partOf, Micro_mobility Management>
+<Parking Integration, connectedTo, Payment Processing>
+<Payment Processing, connectedTo, Autonomous Shared Vehicles>
+<Payment Processing, dispatches, Demand Prediction>
+<Policy Advocacy for Shared Mobility, connectedTo, Autonomous Shared Vehicles>
+<Policy Advocacy for Shared Mobility, connectedTo, User Rating and Feedback Systems>
+<Regulatory Compliance, connectedTo, Fleet Management>
+<Regulatory Compliance, partOf, Regulatory Compliance>
+<Route Optimization, connectedTo, Accessibility for Users>
+<Smart City Integration, connectedTo, User Registration>
+<Smart City Integration, connectedTo, Vehicle Booking>
+<Subscription Model Management, connectedTo, Customer Support>
+<User Onboarding, connectedTo, Micro_mobility Management>
+<User Onboarding, partOf, User Onboarding>
+<User Rating and Feedback Systems, connectedTo, Autonomous Shared Vehicles>
+<User Rating and Feedback Systems, connectedTo, Smart City Integration>
+<User Registration, connectedTo, Subscription Model Management>
+<Vehicle Booking, connectedTo, User Onboarding>
+<Vehicle Booking, partOf, Vehicle Booking>
+<Vehicle Rebalancing, connectedTo, Maintenance Scheduling>
+<Vehicle Rebalancing, connectedTo, Smart City Integration>
diff --git a/test/graphviz/scanned_hard/graphviz_332.dot b/test/graphviz/scanned_hard/graphviz_332.dot
new file mode 100644
index 0000000000000000000000000000000000000000..43cb9bb328255353d837d3120c41340ec05698a4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_332.dot
@@ -0,0 +1,69 @@
+digraph {
+	rankdir=LR
+	N0 [label="Electric Vehicle Charging Integration" color="#B0C5CD" fillcolor="#DFE7EB" shape=ellipse style=filled]
+	N1 [label="Customer Support" color="#B0C5CD" fillcolor="#DFE7EB" shape=octagon style=filled]
+	N2 [label="Fleet Parking Solutions" color="#D3EB9F" fillcolor="#F8FDD3" shape=plaintext style=filled]
+	N3 [label="Dynamic Pricing" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N4 [label="Space Detection" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+	N5 [label="Data Analytics for Parking Usage" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	N6 [label="Parking Guidance Systems" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N7 [label="Intelligent Traffic Management Interaction" color="#B8C0F5" fillcolor="#ECF0FD" shape=diamond style=filled]
+	N8 [label="Revenue Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=folder style=filled]
+	N9 [label="Access Control Systems" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N10 [label="Navigation to Open Space" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N11 [label="Automated Payment" color="#B0C5CD" fillcolor="#DFE7EB" shape=folder style=filled]
+	N12 [label="Valet Parking Automation" color="#D3EB9F" fillcolor="#F8FDD3" shape=plaintext style=filled]
+	N13 [label="Smart Parking Meters" color="#B0C5CD" fillcolor="#DFE7EB" shape=parallelogram style=filled]
+	N14 [label="Real_Time Information Display" color="#B0C5CD" fillcolor="#DFE7EB" shape=Mdiamond style=filled]
+	N15 [label="Barrier Gate Control" color="#B0C5CD" fillcolor="#DFE7EB" shape=octagon style=filled]
+	N16 [label="Edge Computing for Parking Data" color="#B0C5CD" fillcolor="#DFE7EB" shape=ellipse style=filled]
+	S0 [label="" color="#B0C5CD" fillcolor="#DFE7EB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#B0C5CD" fillcolor="#DFE7EB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#B8C0F5" fillcolor="#ECF0FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Event Parking Management" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Reservations System" color="#B0C5CD" fillcolor="#DFE7EB" shape=folder style=filled]
+		nest0_1 [label="Cloud_based Parking Platforms" color="#B8C0F5" fillcolor="#ECF0FD" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="User Experience Design for Apps" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Permit Management" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+		nest1_1 [label="Mobile Parking Apps" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [label=develops color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N15 -> N16 [color="#B0C5CD" dir=forward penwidth=1.5 style=solid]
+	N4 -> nest0_0 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N6 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N9 -> nest1_0 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N10 [label=guides color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N9 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N15 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N13 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N12 [color="#B0C5CD" dir=forward penwidth=1.5 style=solid]
+	S0 -> N16 [color="#B0C5CD" dir=forward penwidth=1.5 style=solid]
+	N11 -> S1 [color="#B0C5CD" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N14 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	S1 -> N16 [color="#D3EB9F" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#D3EB9F" dir=forward penwidth=1.5 style=solid]
+	N6 -> M0 [label=guides color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N8 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_333.dot b/test/graphviz/scanned_hard/graphviz_333.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c94a1f2f961f5c63038e93ff621175ce090aa657
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_333.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=RL
+	N0 [label="Event Promotion Tools" color="#9C27B0" fillcolor="#E1BEE7" shape=ellipse style=filled]
+	N1 [label="Group Booking Management" color="#A1887F" fillcolor="#EFEBE9" shape=folder style=filled]
+	N2 [label="Scalper Prevention" color="#9C27B0" fillcolor="#E1BEE7" shape=oval style=filled]
+	N3 [label="Refund Management" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+	N4 [label="Post_Event Feedback Collection" color="#9C27B0" fillcolor="#E1BEE7" shape=folder style=filled]
+	N5 [label="Audience Segmentation" color="#BDBDBD" fillcolor="#F5F5F5" shape=octagon style=filled]
+	N6 [label="Ticket Sales" color="#A1887F" fillcolor="#EFEBE9" shape=box style=filled]
+	N7 [label="Event Creation" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+	N8 [label="Box Office Management" color="#A1887F" fillcolor="#EFEBE9" shape=folder style=filled]
+	N9 [label="Blockchain Ticketing for Authenticity" color="#9C27B0" fillcolor="#E1BEE7" shape=folder style=filled]
+	N10 [label="Promotional Code Management" color="#A1887F" fillcolor="#EFEBE9" shape=ellipse style=filled]
+	S0 [label="" color="#A1887F" fillcolor="#EFEBE9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#A1887F" fillcolor="#EFEBE9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#9C27B0" fillcolor="#E1BEE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#BDBDBD" fillcolor="#F5F5F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#A1887F" fillcolor="#EFEBE9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#A1887F" fillcolor="#EFEBE9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Public Transport Ticketing" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Resale Market Integration" color="#9C27B0" fillcolor="#E1BEE7" shape=diamond style=filled]
+		nest0_1 [label="Biometric Ticketing" color="#9C27B0" fillcolor="#E1BEE7" shape=folder style=filled]
+		nest0_2 [label="Seat Mapping" color="#9C27B0" fillcolor="#E1BEE7" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Airline Ticketing" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Sports Event Ticketing" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+		nest1_1 [label="Subscription or Season Pass Management" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+		nest1_2 [label="Venue Capacity Management" color="#BDBDBD" fillcolor="#F5F5F5" shape=oval style=filled]
+		nest1_3 [label="Pricing Configuration" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#A1887F" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N7 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N8 -> nest1_0 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N4 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	N4 -> S0 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [label=transfers color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S1 [color="#A1887F" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#A1887F" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N5 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N4 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N3 -> S2 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N8 [color="#A1887F" dir=forward penwidth=1.5 style=solid]
+	S2 -> N6 [label=audits color="#A1887F" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#A1887F" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	M0 -> N5 [color="#9C27B0" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#A1887F" dir=forward penwidth=1.5 style=solid]
+	N8 -> M1 [color="#BDBDBD" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N10 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	N0 -> M2 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M2 [color="#BDBDBD" dir=forward penwidth=1.5 style=solid]
+	M2 -> N3 [color="#A1887F" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_333.txt b/test/graphviz/scanned_hard/graphviz_333.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cd537cbde81813a59affa547a705b86b49d9098c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_333.txt
@@ -0,0 +1,42 @@
+<Audience Segmentation, connectedTo, Ticket Sales>
+<Biometric Ticketing, connectedTo, Seat Mapping>
+<Biometric Ticketing, partOf, Biometric Ticketing>
+<Blockchain Ticketing for Authenticity, connectedTo, Promotional Code Management>
+<Box Office Management, connectedTo, Blockchain Ticketing for Authenticity>
+<Box Office Management, connectedTo, Promotional Code Management>
+<Box Office Management, connectedTo, Sports Event Ticketing>
+<Event Creation, connectedTo, Box Office Management>
+<Event Promotion Tools, connectedTo, Audience Segmentation>
+<Event Promotion Tools, connectedTo, Group Booking Management>
+<Event Promotion Tools, connectedTo, Promotional Code Management>
+<Event Promotion Tools, connectedTo, Refund Management>
+<Group Booking Management, connectedTo, Audience Segmentation>
+<Group Booking Management, connectedTo, Post_Event Feedback Collection>
+<Group Booking Management, connectedTo, Promotional Code Management>
+<Group Booking Management, connectedTo, Refund Management>
+<Group Booking Management, connectedTo, Scalper Prevention>
+<Group Booking Management, connectedTo, Ticket Sales>
+<Post_Event Feedback Collection, connectedTo, Audience Segmentation>
+<Post_Event Feedback Collection, connectedTo, Event Creation>
+<Post_Event Feedback Collection, transfers, Box Office Management>
+<Pricing Configuration, connectedTo, Post_Event Feedback Collection>
+<Pricing Configuration, partOf, Pricing Configuration>
+<Refund Management, audits, Ticket Sales>
+<Refund Management, connectedTo, Audience Segmentation>
+<Refund Management, connectedTo, Box Office Management>
+<Refund Management, connectedTo, Post_Event Feedback Collection>
+<Refund Management, connectedTo, Promotional Code Management>
+<Resale Market Integration, connectedTo, Biometric Ticketing>
+<Resale Market Integration, partOf, Resale Market Integration>
+<Scalper Prevention, connectedTo, Audience Segmentation>
+<Scalper Prevention, connectedTo, Refund Management>
+<Seat Mapping, connectedTo, Event Creation>
+<Seat Mapping, partOf, Seat Mapping>
+<Sports Event Ticketing, connectedTo, Subscription or Season Pass Management>
+<Sports Event Ticketing, partOf, Sports Event Ticketing>
+<Subscription or Season Pass Management, connectedTo, Venue Capacity Management>
+<Subscription or Season Pass Management, partOf, Subscription or Season Pass Management>
+<Ticket Sales, connectedTo, Event Creation>
+<Ticket Sales, connectedTo, Resale Market Integration>
+<Venue Capacity Management, connectedTo, Pricing Configuration>
+<Venue Capacity Management, partOf, Venue Capacity Management>
diff --git a/test/graphviz/scanned_hard/graphviz_334.txt b/test/graphviz/scanned_hard/graphviz_334.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c16fa55f3b319e0e227acd8afdb1655211b54449
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_334.txt
@@ -0,0 +1,34 @@
+<Accessibility Features, connectedTo, Biometric Voter ID>
+<Biometric Voter ID, connectedTo, Anonymous Credential Systems>
+<Biometric Voter ID, connectedTo, Blockchain for Voting>
+<Biometric Voter ID, decrypts, Secure Data Transmission>
+<Biometric Voter ID, upgrades, Voter Authentication>
+<Blockchain for Voting, connectedTo, Anonymous Credential Systems>
+<Cybersecurity for Voting Systems, connectedTo, Accessibility Features>
+<Cybersecurity for Voting Systems, partOf, Cybersecurity for Voting Systems>
+<Election Official Training, connectedTo, Transparency>
+<Online Voting Systems, connectedTo, Threat Modeling>
+<Online Voting Systems, partOf, Online Voting Systems>
+<Optical Scan Systems, connectedTo, Online Voting Systems>
+<Optical Scan Systems, partOf, Optical Scan Systems>
+<Public Trust Building, casts, Optical Scan Systems>
+<Public Trust Building, partOf, Public Trust Building>
+<Secure Data Transmission, connectedTo, Voter Authentication>
+<Security Protocols, connectedTo, Accessibility Features>
+<Security Protocols, connectedTo, Biometric Voter ID>
+<Security Protocols, connectedTo, Secure Data Transmission>
+<System Certification, connectedTo, Biometric Voter ID>
+<System Certification, connectedTo, Blockchain for Voting>
+<System Certification, connectedTo, Vote Counting>
+<Threat Modeling, connectedTo, Accessibility Features>
+<Threat Modeling, partOf, Threat Modeling>
+<Transparency, connectedTo, Biometric Voter ID>
+<Transparency, prevents, Voter Registration>
+<Vote Counting, connectedTo, Biometric Voter ID>
+<Vote Counting, connectedTo, Security Protocols>
+<Vote Counting, connectedTo, Voting Machine Design>
+<Voter Authentication, connectedTo, Blockchain for Voting>
+<Voter Registration, connectedTo, Public Trust Building>
+<Voter Registration, connectedTo, System Certification>
+<Voting Machine Design, connectedTo, Cybersecurity for Voting Systems>
+<Voting Machine Design, partOf, Voting Machine Design>
diff --git a/test/graphviz/scanned_hard/graphviz_335.dot b/test/graphviz/scanned_hard/graphviz_335.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0bb44dc09c1e1d2d5157a47c00d6e615379cd940
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_335.dot
@@ -0,0 +1,83 @@
+digraph {
+	rankdir=RL
+	N0 [label="Feasibility Study" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N1 [label="Behavioral Economics in Policy" color="#FFEB3B" fillcolor="#FFF9C4" shape=oval style=filled]
+	N2 [label="Ethical Considerations" color="#607D8B" fillcolor="#CFD8DC" shape=diamond style=filled]
+	N3 [label="Public Consultation Process" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+	N4 [label="Policy Learning" color="#FFEB3B" fillcolor="#FFF9C4" shape=oval style=filled]
+	N5 [label="Program Design" color="#64B5F6" fillcolor="#E3F2FD" shape=octagon style=filled]
+	N6 [label="Communication Strategy" color="#FFEB3B" fillcolor="#FFF9C4" shape=plaintext style=filled]
+	N7 [label="Risk Assessment" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N8 [label="Criteria Establishment" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N9 [label="Option Generation" color="#607D8B" fillcolor="#CFD8DC" shape=ellipse style=filled]
+	N10 [label="Policy Advocacy and Lobbying" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+	N11 [label="Local Government Policy" color="#FFEB3B" fillcolor="#FFF9C4" shape=diamond style=filled]
+	N12 [label="Monitoring and Evaluation Framework" color="#64B5F6" fillcolor="#E3F2FD" shape=hexagon style=filled]
+	N13 [label="Evidence_Based Policymaking" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+	N14 [label="International Policy Analysis" color="#607D8B" fillcolor="#CFD8DC" shape=Mdiamond style=filled]
+	N15 [label="Presentation Skills" color="#607D8B" fillcolor="#CFD8DC" shape=ellipse style=filled]
+	S0 [label="" color="#607D8B" fillcolor="#CFD8DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#607D8B" fillcolor="#CFD8DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#607D8B" fillcolor="#CFD8DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#607D8B" fillcolor="#CFD8DC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFEB3B" fillcolor="#FFF9C4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Policy Simulation Models" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Regulatory Impact Assessment" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+		nest0_1 [label="Recommendation Formulation" color="#607D8B" fillcolor="#CFD8DC" shape=diamond style=filled]
+		nest0_2 [label="Forecasting and Scenario Planning" color="#607D8B" fillcolor="#CFD8DC" shape=ellipse style=filled]
+		nest0_3 [label="Implementation Plan Development" color="#FFEB3B" fillcolor="#FFF9C4" shape=Mdiamond style=filled]
+		nest0_0 -> nest0_1 [label=reports color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Interagency Coordination" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Legal Review" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+		nest1_1 [label="Advocacy Strategy" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+		nest1_2 [label="Cost_Benefit Analysis" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+		nest1_3 [label="Non_profit Policy Influence" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+		nest1_2 -> nest1_3 [label=communicates color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=informs color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [label=influences color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest0_0 [label=recommends color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N14 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N7 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest1_3 -> N2 [color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+	N2 -> S0 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	S0 -> N8 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N10 -> S1 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N15 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	S1 -> N12 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N8 -> S2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N13 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N14 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	S2 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> M0 [color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M0 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N10 [color="#607D8B" dir=forward penwidth=1.5 style=solid]
+	N7 -> M1 [color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	M1 -> N13 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_335.txt b/test/graphviz/scanned_hard/graphviz_335.txt
new file mode 100644
index 0000000000000000000000000000000000000000..81323c89a97aede498204d5ba9569542fc8ba9cd
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_335.txt
@@ -0,0 +1,46 @@
+<Advocacy Strategy, connectedTo, Cost_Benefit Analysis>
+<Advocacy Strategy, partOf, Advocacy Strategy>
+<Behavioral Economics in Policy, connectedTo, Ethical Considerations>
+<Behavioral Economics in Policy, connectedTo, Evidence_Based Policymaking>
+<Behavioral Economics in Policy, connectedTo, Policy Advocacy and Lobbying>
+<Communication Strategy, connectedTo, Risk Assessment>
+<Communication Strategy, recommends, Regulatory Impact Assessment>
+<Cost_Benefit Analysis, communicates, Non_profit Policy Influence>
+<Cost_Benefit Analysis, partOf, Cost_Benefit Analysis>
+<Criteria Establishment, connectedTo, Evidence_Based Policymaking>
+<Criteria Establishment, connectedTo, International Policy Analysis>
+<Criteria Establishment, connectedTo, Local Government Policy>
+<Criteria Establishment, connectedTo, Option Generation>
+<Criteria Establishment, connectedTo, Policy Advocacy and Lobbying>
+<Ethical Considerations, connectedTo, Criteria Establishment>
+<Ethical Considerations, connectedTo, Option Generation>
+<Ethical Considerations, connectedTo, Public Consultation Process>
+<Evidence_Based Policymaking, connectedTo, International Policy Analysis>
+<Feasibility Study, connectedTo, Behavioral Economics in Policy>
+<Forecasting and Scenario Planning, connectedTo, Implementation Plan Development>
+<Forecasting and Scenario Planning, partOf, Forecasting and Scenario Planning>
+<Implementation Plan Development, connectedTo, International Policy Analysis>
+<Implementation Plan Development, partOf, Implementation Plan Development>
+<International Policy Analysis, influences, Presentation Skills>
+<Legal Review, connectedTo, Advocacy Strategy>
+<Legal Review, partOf, Legal Review>
+<Local Government Policy, connectedTo, Monitoring and Evaluation Framework>
+<Monitoring and Evaluation Framework, connectedTo, Evidence_Based Policymaking>
+<Non_profit Policy Influence, connectedTo, Ethical Considerations>
+<Non_profit Policy Influence, partOf, Non_profit Policy Influence>
+<Option Generation, connectedTo, Policy Advocacy and Lobbying>
+<Policy Advocacy and Lobbying, connectedTo, International Policy Analysis>
+<Policy Advocacy and Lobbying, connectedTo, Local Government Policy>
+<Policy Advocacy and Lobbying, connectedTo, Monitoring and Evaluation Framework>
+<Policy Advocacy and Lobbying, connectedTo, Presentation Skills>
+<Policy Learning, connectedTo, Program Design>
+<Program Design, informs, Communication Strategy>
+<Public Consultation Process, connectedTo, Policy Learning>
+<Recommendation Formulation, connectedTo, Forecasting and Scenario Planning>
+<Recommendation Formulation, partOf, Recommendation Formulation>
+<Regulatory Impact Assessment, partOf, Regulatory Impact Assessment>
+<Regulatory Impact Assessment, reports, Recommendation Formulation>
+<Risk Assessment, connectedTo, Criteria Establishment>
+<Risk Assessment, connectedTo, Evidence_Based Policymaking>
+<Risk Assessment, connectedTo, Legal Review>
+<Risk Assessment, connectedTo, Policy Advocacy and Lobbying>
diff --git a/test/graphviz/scanned_hard/graphviz_336.dot b/test/graphviz/scanned_hard/graphviz_336.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3e55b01128178710eccfa9c7d866f497280b6431
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_336.dot
@@ -0,0 +1,80 @@
+digraph {
+	rankdir=RL
+	N0 [label="Research Impact Assessment" color="#4DB6AC" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N1 [label="Thesis or Dissertation Writing" color="#4DB6AC" fillcolor="#E0F2F1" shape=oval style=filled]
+	N2 [label="Sampling Techniques" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N3 [label="Experiment Design" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+	N4 [label="Data Management Plan" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N5 [label="Theory Development" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N6 [label="Variable Identification" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N7 [label="Poster Session Preparation" color="#7986CB" fillcolor="#E8EAF6" shape=oval style=filled]
+	N8 [label="Data Analysis" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N9 [label="Open Science Practices" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N10 [label="Peer Review Process" color="#D2D2D2" fillcolor="#F0F0F0" shape=octagon style=filled]
+	N11 [label="Grant Proposal Writing" color="#4DB6AC" fillcolor="#E0F2F1" shape=folder style=filled]
+	N12 [label="Funding Agency Reporting" color="#7986CB" fillcolor="#E8EAF6" shape=oval style=filled]
+	N13 [label="Manuscript Writing" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N14 [label="Methodology Selection" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	S0 [label="" color="#4DB6AC" fillcolor="#E0F2F1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#D2D2D2" fillcolor="#F0F0F0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#D2D2D2" fillcolor="#F0F0F0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#4DB6AC" fillcolor="#E0F2F1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#7986CB" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#7986CB" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Qualitative Analysis" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Reproducibility Studies" color="#D2D2D2" fillcolor="#F0F0F0" shape=diamond style=filled]
+		nest0_1 [label="Academic Mentorship" color="#D2D2D2" fillcolor="#F0F0F0" shape=octagon style=filled]
+		nest0_0 -> nest0_1 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Research Collaboration" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Research Ethics Application" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+		nest1_1 [label="Model Building" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+		nest1_2 [label="Power Analysis" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+		nest1_3 [label="Software for Statistical Analysis" color="#4DB6AC" fillcolor="#E0F2F1" shape=oval style=filled]
+		nest1_0 -> nest1_1 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [label=patents color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+		nest1_2 -> nest1_3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [label=interprets color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N10 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> S0 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N10 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N11 -> S1 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	S1 -> N13 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	S1 -> N14 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> S2 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N8 [color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	S2 -> N12 [label=studies color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	S2 -> N9 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N6 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N1 -> M1 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N3 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> M2 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M2 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	M2 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_336.txt b/test/graphviz/scanned_hard/graphviz_336.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b3b93f722546734bd646bcfd4708968dfc75af79
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_336.txt
@@ -0,0 +1,42 @@
+<Academic Mentorship, connectedTo, Grant Proposal Writing>
+<Academic Mentorship, partOf, Academic Mentorship>
+<Data Analysis, connectedTo, Methodology Selection>
+<Data Analysis, connectedTo, Open Science Practices>
+<Data Analysis, connectedTo, Peer Review Process>
+<Data Management Plan, connectedTo, Theory Development>
+<Experiment Design, connectedTo, Data Management Plan>
+<Experiment Design, connectedTo, Variable Identification>
+<Funding Agency Reporting, connectedTo, Manuscript Writing>
+<Grant Proposal Writing, connectedTo, Funding Agency Reporting>
+<Grant Proposal Writing, connectedTo, Manuscript Writing>
+<Grant Proposal Writing, connectedTo, Methodology Selection>
+<Manuscript Writing, interprets, Methodology Selection>
+<Model Building, partOf, Model Building>
+<Model Building, patents, Power Analysis>
+<Open Science Practices, connectedTo, Peer Review Process>
+<Peer Review Process, connectedTo, Grant Proposal Writing>
+<Peer Review Process, connectedTo, Reproducibility Studies>
+<Poster Session Preparation, connectedTo, Data Analysis>
+<Power Analysis, connectedTo, Software for Statistical Analysis>
+<Power Analysis, partOf, Power Analysis>
+<Reproducibility Studies, connectedTo, Academic Mentorship>
+<Reproducibility Studies, partOf, Reproducibility Studies>
+<Research Ethics Application, connectedTo, Model Building>
+<Research Ethics Application, partOf, Research Ethics Application>
+<Research Impact Assessment, connectedTo, Data Management Plan>
+<Research Impact Assessment, connectedTo, Experiment Design>
+<Research Impact Assessment, connectedTo, Thesis or Dissertation Writing>
+<Sampling Techniques, connectedTo, Data Management Plan>
+<Sampling Techniques, connectedTo, Experiment Design>
+<Sampling Techniques, connectedTo, Variable Identification>
+<Software for Statistical Analysis, connectedTo, Sampling Techniques>
+<Software for Statistical Analysis, partOf, Software for Statistical Analysis>
+<Theory Development, connectedTo, Variable Identification>
+<Thesis or Dissertation Writing, connectedTo, Data Management Plan>
+<Thesis or Dissertation Writing, connectedTo, Experiment Design>
+<Thesis or Dissertation Writing, connectedTo, Research Ethics Application>
+<Thesis or Dissertation Writing, connectedTo, Sampling Techniques>
+<Variable Identification, connectedTo, Data Analysis>
+<Variable Identification, connectedTo, Open Science Practices>
+<Variable Identification, connectedTo, Poster Session Preparation>
+<Variable Identification, studies, Funding Agency Reporting>
diff --git a/test/graphviz/scanned_hard/graphviz_338.dot b/test/graphviz/scanned_hard/graphviz_338.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3c907f5d51374a2caddfa89beaff88a6c1940d18
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_338.dot
@@ -0,0 +1,69 @@
+digraph {
+	rankdir=LR
+	N0 [label="Emulation for Obsolete Formats" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N1 [label="Grant Writing for Archives" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N2 [label="Provenance Tracking" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N3 [label="Preservation Planning" color="#FFEB3B" fillcolor="#FFF9C4" shape=oval style=filled]
+	N4 [label="Arrangement and Description" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N5 [label="Born_Digital Archiving" color="#FFEB3B" fillcolor="#FFF9C4" shape=folder style=filled]
+	N6 [label="Serialization and Item Control" color="#FFCC7A" fillcolor="#FFF6D9" shape=hexagon style=filled]
+	N7 [label="Digital Asset Management" color="#7986CB" fillcolor="#E8EAF6" shape=Mdiamond style=filled]
+	N8 [label="Disaster Preparedness for Archives" color="#FFCC7A" fillcolor="#FFF6D9" shape=hexagon style=filled]
+	N9 [label="Community Archiving Projects" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N10 [label="Access and Reference Services" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	N11 [label="Archival Advocacy" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	S0 [label="" color="#7986CB" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFEB3B" fillcolor="#FFF9C4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFEB3B" fillcolor="#FFF9C4" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#FFCC7A" fillcolor="#FFF6D9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="User Interface for Digital Archives" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Authority Control for Archival Names" color="#FFCC7A" fillcolor="#FFF6D9" shape=parallelogram style=filled]
+		nest0_1 [label="Digitization of Records" color="#7986CB" fillcolor="#E8EAF6" shape=diamond style=filled]
+		nest0_2 [label="Database Management" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Collection Management Policy" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Ethical Use of Archival Materials" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+		nest1_1 [label="Web Archiving" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+		nest1_2 [label="Public Access Systems" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+		nest1_3 [label="Digital Forensics for Archives" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+		nest1_2 -> nest1_3 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=audits color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=researches color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N10 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N5 [label=protects color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N9 -> nest1_0 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N5 [label=educates color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S0 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	S0 -> N4 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N9 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	S0 -> N7 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N5 -> S1 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N11 [label=stores color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N5 -> M0 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M0 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N11 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	M1 -> N3 [color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_338.txt b/test/graphviz/scanned_hard/graphviz_338.txt
new file mode 100644
index 0000000000000000000000000000000000000000..81264bd38cfeff3f7c8b03d10baafde761a83819
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_338.txt
@@ -0,0 +1,38 @@
+<Access and Reference Services, connectedTo, Archival Advocacy>
+<Access and Reference Services, connectedTo, Authority Control for Archival Names>
+<Arrangement and Description, connectedTo, Archival Advocacy>
+<Arrangement and Description, connectedTo, Born_Digital Archiving>
+<Authority Control for Archival Names, connectedTo, Digitization of Records>
+<Authority Control for Archival Names, partOf, Authority Control for Archival Names>
+<Born_Digital Archiving, connectedTo, Access and Reference Services>
+<Born_Digital Archiving, connectedTo, Archival Advocacy>
+<Born_Digital Archiving, connectedTo, Serialization and Item Control>
+<Born_Digital Archiving, stores, Archival Advocacy>
+<Community Archiving Projects, connectedTo, Access and Reference Services>
+<Community Archiving Projects, connectedTo, Ethical Use of Archival Materials>
+<Database Management, partOf, Database Management>
+<Database Management, protects, Born_Digital Archiving>
+<Digital Asset Management, researches, Disaster Preparedness for Archives>
+<Digital Forensics for Archives, educates, Born_Digital Archiving>
+<Digital Forensics for Archives, partOf, Digital Forensics for Archives>
+<Digitization of Records, connectedTo, Database Management>
+<Digitization of Records, partOf, Digitization of Records>
+<Disaster Preparedness for Archives, connectedTo, Community Archiving Projects>
+<Emulation for Obsolete Formats, connectedTo, Grant Writing for Archives>
+<Emulation for Obsolete Formats, connectedTo, Preservation Planning>
+<Ethical Use of Archival Materials, connectedTo, Web Archiving>
+<Ethical Use of Archival Materials, partOf, Ethical Use of Archival Materials>
+<Grant Writing for Archives, connectedTo, Archival Advocacy>
+<Grant Writing for Archives, connectedTo, Arrangement and Description>
+<Grant Writing for Archives, connectedTo, Community Archiving Projects>
+<Grant Writing for Archives, connectedTo, Digital Asset Management>
+<Grant Writing for Archives, connectedTo, Preservation Planning>
+<Grant Writing for Archives, connectedTo, Provenance Tracking>
+<Preservation Planning, connectedTo, Archival Advocacy>
+<Preservation Planning, connectedTo, Arrangement and Description>
+<Provenance Tracking, audits, Preservation Planning>
+<Public Access Systems, connectedTo, Digital Forensics for Archives>
+<Public Access Systems, partOf, Public Access Systems>
+<Serialization and Item Control, connectedTo, Digital Asset Management>
+<Web Archiving, connectedTo, Public Access Systems>
+<Web Archiving, partOf, Web Archiving>
diff --git a/test/graphviz/scanned_hard/graphviz_34.txt b/test/graphviz/scanned_hard/graphviz_34.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3e2cc9ea014abdaac75a24abb6e3866ad7ab9d89
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_34.txt
@@ -0,0 +1,13 @@
+<Campus Recruitment, connectedTo, Diversity Sourcing>
+<Candidate Experience Management, backgrounds, Job Fair Organization>
+<Candidate Relationship Management, posts, Offer Extension>
+<Contingent Workforce Management, connectedTo, Internal Mobility>
+<Diversity Sourcing, connectedTo, Psychometric Testing>
+<Employee Referral Program, connectedTo, Negotiation>
+<Internal Mobility, refers, Candidate Relationship Management>
+<Job Description Creation, headhunts, Job Fair Organization>
+<Job Fair Organization, connectedTo, Contingent Workforce Management>
+<Negotiation, connectedTo, Campus Recruitment>
+<Offer Extension, connectedTo, Employee Referral Program>
+<Psychometric Testing, optimizes, Job Fair Organization>
+<Psychometric Testing, regulates, Job Description Creation>
diff --git a/test/graphviz/scanned_hard/graphviz_340.dot b/test/graphviz/scanned_hard/graphviz_340.dot
new file mode 100644
index 0000000000000000000000000000000000000000..29450395282c8710bfc0d117a8406e32900ce2e0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_340.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=LR
+	N0 [label="CSR Reporting" color="#4DD0E1" fillcolor="#C9F0F0" shape=ellipse style=filled]
+	N1 [label="Compliance Hotlines" color="#4DD0E1" fillcolor="#C9F0F0" shape=ellipse style=filled]
+	N2 [label="Legal Advisory" color="#4DD0E1" fillcolor="#C9F0F0" shape=box style=filled]
+	N3 [label="Data Ethics" color="#8C9EFF" fillcolor="#D3D7EB" shape=hexagon style=filled]
+	N4 [label="Consumer Protection Compliance" color="#8C9EFF" fillcolor="#D3D7EB" shape=plaintext style=filled]
+	N5 [label="Information Security Compliance" color="#FF8A65" fillcolor="#FBE9E7" shape=octagon style=filled]
+	N6 [label="Reporting Mechanisms" color="#8C9EFF" fillcolor="#D3D7EB" shape=plaintext style=filled]
+	N7 [label="ESG Integration" color="#4DD0E1" fillcolor="#C9F0F0" shape=ellipse style=filled]
+	N8 [label="Labor Law Compliance" color="#FF8A65" fillcolor="#FBE9E7" shape=oval style=filled]
+	N9 [label="Fair Competition Compliance" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	N10 [label="Ethical Leadership Development" color="#FF8A65" fillcolor="#FBE9E7" shape=parallelogram style=filled]
+	N11 [label="Product Safety Compliance" color="#8C9EFF" fillcolor="#D3D7EB" shape=oval style=filled]
+	N12 [label="Policy Development" color="#8C9EFF" fillcolor="#D3D7EB" shape=oval style=filled]
+	N13 [label="Ethical Decision_Making Frameworks" color="#FF8A65" fillcolor="#FBE9E7" shape=diamond style=filled]
+	N14 [label="Environmental Compliance" color="#4DD0E1" fillcolor="#C9F0F0" shape=box style=filled]
+	N15 [label="Stakeholder Engagement on Ethics" color="#4DD0E1" fillcolor="#C9F0F0" shape=box style=filled]
+	N16 [label="Risk Assessment" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N17 [label="Anti_Bribery and Corruption Compliance" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	S0 [label="" color="#FF8A65" fillcolor="#FBE9E7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#8C9EFF" fillcolor="#D3D7EB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#8C9EFF" fillcolor="#D3D7EB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#8C9EFF" fillcolor="#D3D7EB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Financial Regulations Compliance" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Compliance Software Implementation" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+		nest0_1 [label="Bias Mitigation" color="#8C9EFF" fillcolor="#D3D7EB" shape=box style=filled]
+		nest0_2 [label="Corporate Governance Standards" color="#8C9EFF" fillcolor="#D3D7EB" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E3F2FD" fontname=Helvetica fontsize=10 label="Code of Conduct Implementation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Export Control Compliance" color="#8C9EFF" fillcolor="#D3D7EB" shape=plaintext style=filled]
+		nest1_1 [label="Internal Investigations" color="#FF8A65" fillcolor="#FBE9E7" shape=oval style=filled]
+		nest1_2 [label="Ethical AI Guidelines" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+		nest1_0 -> nest1_1 [color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=monitors color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+	N15 -> N16 [color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+	N16 -> N17 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N10 [color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	N1 -> nest1_0 [color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	nest1_2 -> N5 [label=enforces color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N0 -> S0 [color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N6 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+	S0 -> N13 [color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N3 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+	N6 -> S1 [color="#4DD0E1" dir=forward penwidth=1.5 style=solid]
+	S1 -> N9 [color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	S1 -> N17 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N5 -> M0 [color="#4DD0E1" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M0 [color="#4DD0E1" dir=forward penwidth=1.5 style=solid]
+	N11 -> M0 [color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N14 [color="#8C9EFF" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N6 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_340.txt b/test/graphviz/scanned_hard/graphviz_340.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c88772b21263f8098ef88aece4db1a8ea0e5adcf
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_340.txt
@@ -0,0 +1,42 @@
+<Bias Mitigation, connectedTo, Corporate Governance Standards>
+<Bias Mitigation, partOf, Bias Mitigation>
+<CSR Reporting, connectedTo, Compliance Hotlines>
+<CSR Reporting, connectedTo, Data Ethics>
+<CSR Reporting, connectedTo, Ethical Decision_Making Frameworks>
+<CSR Reporting, connectedTo, Reporting Mechanisms>
+<Compliance Hotlines, connectedTo, Environmental Compliance>
+<Compliance Hotlines, connectedTo, Export Control Compliance>
+<Compliance Hotlines, monitors, Legal Advisory>
+<Compliance Software Implementation, connectedTo, Bias Mitigation>
+<Compliance Software Implementation, partOf, Compliance Software Implementation>
+<Consumer Protection Compliance, connectedTo, Information Security Compliance>
+<Consumer Protection Compliance, connectedTo, Reporting Mechanisms>
+<Corporate Governance Standards, connectedTo, Ethical Leadership Development>
+<Corporate Governance Standards, partOf, Corporate Governance Standards>
+<Data Ethics, connectedTo, Consumer Protection Compliance>
+<Data Ethics, connectedTo, Reporting Mechanisms>
+<ESG Integration, connectedTo, Compliance Software Implementation>
+<ESG Integration, connectedTo, Labor Law Compliance>
+<Environmental Compliance, connectedTo, Stakeholder Engagement on Ethics>
+<Ethical AI Guidelines, enforces, Information Security Compliance>
+<Ethical AI Guidelines, partOf, Ethical AI Guidelines>
+<Ethical Decision_Making Frameworks, connectedTo, Environmental Compliance>
+<Ethical Leadership Development, connectedTo, Product Safety Compliance>
+<Export Control Compliance, connectedTo, Internal Investigations>
+<Export Control Compliance, partOf, Export Control Compliance>
+<Fair Competition Compliance, connectedTo, Ethical Leadership Development>
+<Information Security Compliance, connectedTo, Environmental Compliance>
+<Information Security Compliance, connectedTo, Reporting Mechanisms>
+<Internal Investigations, connectedTo, Ethical AI Guidelines>
+<Internal Investigations, partOf, Internal Investigations>
+<Labor Law Compliance, connectedTo, Fair Competition Compliance>
+<Legal Advisory, connectedTo, Data Ethics>
+<Policy Development, connectedTo, Ethical Decision_Making Frameworks>
+<Product Safety Compliance, connectedTo, Environmental Compliance>
+<Product Safety Compliance, connectedTo, Policy Development>
+<Reporting Mechanisms, connectedTo, Anti_Bribery and Corruption Compliance>
+<Reporting Mechanisms, connectedTo, ESG Integration>
+<Reporting Mechanisms, connectedTo, Ethical Leadership Development>
+<Reporting Mechanisms, connectedTo, Fair Competition Compliance>
+<Risk Assessment, connectedTo, Anti_Bribery and Corruption Compliance>
+<Stakeholder Engagement on Ethics, connectedTo, Risk Assessment>
diff --git a/test/graphviz/scanned_hard/graphviz_343.dot b/test/graphviz/scanned_hard/graphviz_343.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c71e4a3bd6e9c27b538caf9b1324965ae9d1b011
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_343.dot
@@ -0,0 +1,84 @@
+digraph {
+	rankdir=RL
+	N0 [label="Border Surveillance" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	N1 [label="Asset Tracking" color="#EAEFA5" fillcolor="#FDFCEB" shape=octagon style=filled]
+	N2 [label="Environmental Monitoring" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N3 [label="Industrial Surveillance" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N4 [label="Facial Recognition Systems" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N5 [label="Remote Sensing" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N6 [label="Intrusion Detection" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N7 [label="Satellite Imaging" color="#7986CB" fillcolor="#E8EAF6" shape=plaintext style=filled]
+	N8 [label="Thermal Imaging" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N9 [label="Sensor Network Deployment" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N10 [label="Legal Compliance" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N11 [label="Biometric Data Analysis" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N12 [label="Data Collection" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	N13 [label="Anomaly Detection" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N14 [label="Internet Traffic Monitoring" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	N15 [label="Access Control Systems" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N16 [label="Cyber Surveillance" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	N17 [label="Ethical Guidelines" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N18 [label="GPS Tracking" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N19 [label="Traffic Surveillance" color="#EAEFA5" fillcolor="#FDFCEB" shape=oval style=filled]
+	N20 [label="Network Monitoring" color="#EAEFA5" fillcolor="#FDFCEB" shape=octagon style=filled]
+	N21 [label="Security Personnel Operations" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	S0 [label="" color="#7986CB" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#7986CB" fillcolor="#E8EAF6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Mobile Phone Interception" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Audio Surveillance" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+		nest0_1 [label="CCTV Monitoring" color="#EAEFA5" fillcolor="#FDFCEB" shape=plaintext style=filled]
+		nest0_0 -> nest0_1 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Automated Threat Detection" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Physical Security Integration" color="#7986CB" fillcolor="#E8EAF6" shape=plaintext style=filled]
+		nest1_1 [label="Data Storage and Retention" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=tracks color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [label=shares color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [label=searches color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	N14 -> N15 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N15 -> N16 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N16 -> N17 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N17 -> N18 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N18 -> N19 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N19 -> N20 [label=analyzes color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N20 -> N21 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest0_0 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N14 [label=automates color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N7 -> nest1_0 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N13 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	N9 -> S0 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	S0 -> N21 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N11 [label=evidence_gathers color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	S0 -> N17 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N15 -> S1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N18 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N17 [color="#7986CB" dir=forward penwidth=1.5 style=solid]
+	N8 -> M0 [label=maintains color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N10 -> M0 [label=secures color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+	N4 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N14 [color="#9FA9E1" dir=forward penwidth=1.5 style=dashed]
+	N8 -> M1 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M1 -> N10 [color="#9FA9E1" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_344.txt b/test/graphviz/scanned_hard/graphviz_344.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d1b282cab6f6e8b2ac0351c66109315ec4f1721a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_344.txt
@@ -0,0 +1,39 @@
+<Behavioral Science in Prevention, connectedTo, Patrol Operations>
+<CCTV Installation, connectedTo, Behavioral Science in Prevention>
+<CCTV Installation, connectedTo, Drug Prevention Initiatives>
+<CCTV Installation, connectedTo, Gang Intervention>
+<CCTV Installation, connectedTo, Patrol Operations>
+<Community Policing, communicates, Technology for Prevention>
+<Community Policing, connectedTo, Fraud Prevention>
+<Conflict Resolution Training, connectedTo, Neighborhood Watch Programs>
+<Conflict Resolution Training, partOf, Conflict Resolution Training>
+<Data Sharing Initiatives, certifies, Fraud Prevention>
+<Data Sharing Initiatives, connectedTo, Mediation Services>
+<Domestic Violence Prevention, connectedTo, Community Policing>
+<Domestic Violence Prevention, partOf, Domestic Violence Prevention>
+<Fraud Prevention, connectedTo, Behavioral Science in Prevention>
+<Fraud Prevention, connectedTo, CCTV Installation>
+<Gang Intervention, connectedTo, Drug Prevention Initiatives>
+<Gun Violence Prevention, connectedTo, Behavioral Science in Prevention>
+<Gun Violence Prevention, connectedTo, Fraud Prevention>
+<Gun Violence Prevention, connectedTo, Patrol Operations>
+<Mediation Services, connectedTo, Behavioral Science in Prevention>
+<Mediation Services, connectedTo, Policy Development for Prevention>
+<Neighborhood Watch Programs, connectedTo, Vehicle Theft Prevention>
+<Neighborhood Watch Programs, partOf, Neighborhood Watch Programs>
+<Patrol Operations, alerts, Robbery Prevention>
+<Patrol Operations, connectedTo, Gang Intervention>
+<Police_Community Relations, connectedTo, CCTV Installation>
+<Police_Community Relations, partOf, Police_Community Relations>
+<Policy Development for Prevention, connectedTo, Behavioral Science in Prevention>
+<Policy Development for Prevention, connectedTo, Community Policing>
+<Policy Development for Prevention, connectedTo, Conflict Resolution Training>
+<Policy Development for Prevention, connectedTo, Fraud Prevention>
+<Robbery Prevention, connectedTo, Domestic Violence Prevention>
+<Robbery Prevention, partOf, Robbery Prevention>
+<Technology for Prevention, connectedTo, CCTV Installation>
+<Technology for Prevention, connectedTo, Drug Prevention Initiatives>
+<Technology for Prevention, connectedTo, Fraud Prevention>
+<Technology for Prevention, licenses, Gun Violence Prevention>
+<Vehicle Theft Prevention, connectedTo, Police_Community Relations>
+<Vehicle Theft Prevention, partOf, Vehicle Theft Prevention>
diff --git a/test/graphviz/scanned_hard/graphviz_346.txt b/test/graphviz/scanned_hard/graphviz_346.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c08555041442e3f3120edb3050a60e68a834bf76
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_346.txt
@@ -0,0 +1,36 @@
+<Biological Oceanography, connectedTo, Sea Level Monitoring>
+<Buoy Deployment, connectedTo, Marine Hazards Assessment>
+<Buoy Deployment, partOf, Buoy Deployment>
+<Climate Change Impact Study, connectedTo, Seabed Resource Exploration>
+<Deep_Sea Exploration, connectedTo, Chemical Oceanography>
+<Deep_Sea Exploration, partOf, Deep_Sea Exploration>
+<Fisheries Management, connectedTo, Tsunami Prediction>
+<Marine Biodiversity Assessment, connectedTo, Ocean Carbon Cycle>
+<Marine Ecosystem Health, connectedTo, Buoy Deployment>
+<Marine Ecosystem Health, partOf, Marine Ecosystem Health>
+<Marine Hazards Assessment, connectedTo, Ocean Modeling>
+<Marine Pollution Monitoring, connectedTo, Marine Biodiversity Assessment>
+<Marine Pollution Monitoring, connectedTo, Ocean Modeling>
+<Marine Pollution Monitoring, connectedTo, Underwater Acoustics>
+<Ocean Carbon Cycle, connectedTo, Sediment Analysis>
+<Ocean Data Archiving, connectedTo, Chemical Oceanography>
+<Ocean Drilling Programs, connectedTo, Ocean Renewable Energy>
+<Ocean Drilling Programs, simulates, Polar Oceanography>
+<Ocean Floor Mapping, connectedTo, Ocean Drilling Programs>
+<Ocean Modeling, connectedTo, Marine Ecosystem Health>
+<Ocean Modeling, connectedTo, Ocean Data Archiving>
+<Ocean Renewable Energy, connectedTo, Deep_Sea Exploration>
+<Ocean Renewable Energy, partOf, Ocean Renewable Energy>
+<Physical Oceanography, connectedTo, Climate Change Impact Study>
+<Polar Oceanography, connectedTo, Marine Hazards Assessment>
+<Salinity Measurement, connectedTo, Fisheries Management>
+<Salinity Measurement, connectedTo, Marine Pollution Monitoring>
+<Salinity Measurement, connectedTo, Polar Oceanography>
+<Sea Level Monitoring, connectedTo, Fisheries Management>
+<Seabed Resource Exploration, connectedTo, Marine Hazards Assessment>
+<Seabed Resource Exploration, connectedTo, Ocean Drilling Programs>
+<Seabed Resource Exploration, connectedTo, Ocean Floor Mapping>
+<Seabed Resource Exploration, processes_images, Polar Oceanography>
+<Sediment Analysis, connectedTo, Biological Oceanography>
+<Tsunami Prediction, connectedTo, Physical Oceanography>
+<Underwater Acoustics, connectedTo, Marine Biodiversity Assessment>
diff --git a/test/graphviz/scanned_hard/graphviz_347.dot b/test/graphviz/scanned_hard/graphviz_347.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c54b946e49cc4db6290a0c839af53584cda60e0a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_347.dot
@@ -0,0 +1,58 @@
+digraph {
+	rankdir=RL
+	N0 [label="Microseismicity Study" color="#4DB6AC" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N1 [label="Seismic Hazard Assessment" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N2 [label="Induced Seismicity Monitoring" color="#F06292" fillcolor="#FCE4EC" shape=Mdiamond style=filled]
+	N3 [label="Seismic Inversion" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N4 [label="Emergency Preparedness for Earthquakes" color="#F06292" fillcolor="#FCE4EC" shape=Mdiamond style=filled]
+	N5 [label="Tectonic Stress Measurement" color="#4DB6AC" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N6 [label="Aftershock Analysis" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	S1 [label="" color="#4DB6AC" fillcolor="#E0F2F1" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#F06292" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#F06292" fillcolor="#FCE4EC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#C0CA33" fillcolor="#F9FBE7" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FBE9E7" fontname=Helvetica fontsize=10 label="Liquefaction Potential Assessment" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Ground Motion Prediction" color="#4DB6AC" fillcolor="#E0F2F1" shape=octagon style=filled]
+		nest0_1 [label="Tectonic Plate Movement Monitoring" color="#F06292" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+		nest0_2 [label="Seismic Array Deployment" color="#F06292" fillcolor="#FCE4EC" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Strong Motion Instrumentation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Deep Earth Seismology" color="#4DB6AC" fillcolor="#E0F2F1" shape=box style=filled]
+		nest1_1 [label="Glacial Seismology" color="#C0CA33" fillcolor="#F9FBE7" shape=octagon style=filled]
+		nest1_2 [label="Nuclear Test Monitoring" color="#4DB6AC" fillcolor="#E0F2F1" shape=box style=filled]
+		nest1_3 [label="Earthquake Detection" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+		nest1_0 -> nest1_1 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [label=risk_assesses color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [color="#C0CA33" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#C0CA33" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=analyzes color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=data_collects color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N1 -> nest0_0 [color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	nest0_2 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> nest1_0 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N5 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N2 -> S1 [color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	S1 -> N6 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N4 [color="#C0CA33" dir=forward penwidth=1.5 style=solid]
+	N1 -> S2 [color="#C0CA33" dir=forward penwidth=1.5 style=solid]
+	S2 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N5 [color="#C0CA33" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M1 -> N5 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N3 -> M2 [color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N0 -> M2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N5 [color="#F06292" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_347.txt b/test/graphviz/scanned_hard/graphviz_347.txt
new file mode 100644
index 0000000000000000000000000000000000000000..04962fa77d67953cf9c3206f8c939025b8364e1b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_347.txt
@@ -0,0 +1,29 @@
+<Deep Earth Seismology, connectedTo, Glacial Seismology>
+<Deep Earth Seismology, partOf, Deep Earth Seismology>
+<Earthquake Detection, connectedTo, Tectonic Stress Measurement>
+<Earthquake Detection, partOf, Earthquake Detection>
+<Emergency Preparedness for Earthquakes, connectedTo, Deep Earth Seismology>
+<Emergency Preparedness for Earthquakes, data_collects, Tectonic Stress Measurement>
+<Glacial Seismology, partOf, Glacial Seismology>
+<Glacial Seismology, risk_assesses, Nuclear Test Monitoring>
+<Ground Motion Prediction, connectedTo, Tectonic Plate Movement Monitoring>
+<Ground Motion Prediction, partOf, Ground Motion Prediction>
+<Induced Seismicity Monitoring, connectedTo, Aftershock Analysis>
+<Induced Seismicity Monitoring, connectedTo, Emergency Preparedness for Earthquakes>
+<Induced Seismicity Monitoring, connectedTo, Seismic Inversion>
+<Induced Seismicity Monitoring, connectedTo, Tectonic Stress Measurement>
+<Microseismicity Study, connectedTo, Seismic Hazard Assessment>
+<Microseismicity Study, connectedTo, Tectonic Stress Measurement>
+<Nuclear Test Monitoring, connectedTo, Earthquake Detection>
+<Nuclear Test Monitoring, partOf, Nuclear Test Monitoring>
+<Seismic Array Deployment, connectedTo, Emergency Preparedness for Earthquakes>
+<Seismic Array Deployment, partOf, Seismic Array Deployment>
+<Seismic Hazard Assessment, connectedTo, Emergency Preparedness for Earthquakes>
+<Seismic Hazard Assessment, connectedTo, Ground Motion Prediction>
+<Seismic Hazard Assessment, connectedTo, Induced Seismicity Monitoring>
+<Seismic Hazard Assessment, connectedTo, Tectonic Stress Measurement>
+<Seismic Inversion, analyzes, Emergency Preparedness for Earthquakes>
+<Seismic Inversion, connectedTo, Tectonic Stress Measurement>
+<Tectonic Plate Movement Monitoring, connectedTo, Seismic Array Deployment>
+<Tectonic Plate Movement Monitoring, partOf, Tectonic Plate Movement Monitoring>
+<Tectonic Stress Measurement, connectedTo, Aftershock Analysis>
diff --git a/test/graphviz/scanned_hard/graphviz_35.txt b/test/graphviz/scanned_hard/graphviz_35.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6d9c70882fce3007cee83aeeffea4febb1690ab4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_35.txt
@@ -0,0 +1,13 @@
+<Customer Journey Mapping, educates, Feedback Loop to Product Development>
+<Customer Loyalty Program Support, listens, Self_Service Portal Management>
+<Email Support, connectedTo, Inquiry Handling>
+<FAQ Management, videos, Feedback Collection>
+<Feedback Collection, connectedTo, Post_Service Follow_up>
+<Feedback Collection, refunds, Technical Support>
+<Feedback Loop to Product Development, connectedTo, FAQ Management>
+<Inquiry Handling, connectedTo, Technical Support>
+<Multilingual Support, emails, Live Chat Support>
+<Multilingual Support, feedback, Self_Service Portal Management>
+<Post_Service Follow_up, secures, Multilingual Support>
+<Self_Service Portal Management, answers, Email Support>
+<Technical Support, responds, Customer Journey Mapping>
diff --git a/test/graphviz/scanned_hard/graphviz_350.dot b/test/graphviz/scanned_hard/graphviz_350.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d33c35138214360be37c85043f00d9f06ec866a1
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_350.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=LR
+	N0 [label="Lemmatization or Stemming" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N1 [label="Financial Text Analysis" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N2 [label="Machine Learning for Text Mining" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N3 [label="Automated Content Tagging" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N4 [label="Keyword Extraction" color="#A188D0" fillcolor="#DACBE3" shape=folder style=filled]
+	N5 [label="Text Visualization" color="#6EB76D" fillcolor="#E9F7E8" shape=hexagon style=filled]
+	N6 [label="Text Clustering" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	N7 [label="Named Entity Recognition" color="#73C6BC" fillcolor="#D0EFEE" shape=Mdiamond style=filled]
+	N8 [label="Language Translation for Text Mining" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N9 [label="Text Classification" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N10 [label="Text Preprocessing" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N11 [label="Legal Document Analysis" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N12 [label="News Article Analysis" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N13 [label="Vector Space Models" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N14 [label="Knowledge Graph Construction" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+	S0 [label="" color="#A188D0" fillcolor="#DACBE3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#A188D0" fillcolor="#DACBE3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#A188D0" fillcolor="#DACBE3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#A188D0" fillcolor="#DACBE3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M2 [label="" color="#6EB76D" fillcolor="#E9F7E8" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Annotation Tools" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Author Attribution" color="#6EB76D" fillcolor="#E9F7E8" shape=parallelogram style=filled]
+		nest0_1 [label="Spam Detection" color="#6EB76D" fillcolor="#E9F7E8" shape=oval style=filled]
+		nest0_2 [label="Document Summarization" color="#73C6BC" fillcolor="#D0EFEE" shape=octagon style=filled]
+		nest0_3 [label=Tokenization color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [label=data_collects color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Data Cleaning for Text" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Plagiarism Detection" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+		nest1_1 [label="Natural Language Processing" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=disambiguates color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N11 -> nest0_0 [label=blocks color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N11 -> nest1_0 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	nest1_1 -> N13 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N9 -> S0 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	S0 -> N12 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	S0 -> N14 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> S1 [color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	S1 -> N13 [label=interprets color="#A188D0" dir=forward penwidth=1.5 style=solid]
+	S1 -> N12 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	S1 -> N14 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N7 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N5 -> M0 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	M0 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> M1 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	M1 -> N13 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N4 -> M2 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N0 -> M2 [color="#A188D0" dir=forward penwidth=1.5 style=dashed]
+	M2 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_351.txt b/test/graphviz/scanned_hard/graphviz_351.txt
new file mode 100644
index 0000000000000000000000000000000000000000..665a73abfdd9625d4c7db77bc8b0ca9c9b057c33
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_351.txt
@@ -0,0 +1,40 @@
+<Aerospace Digital Twins, connectedTo, Autonomous Operations>
+<Aerospace Digital Twins, connectedTo, Historical Data Analysis>
+<Aerospace Digital Twins, connectedTo, Operational Planning>
+<Aerospace Digital Twins, connectedTo, Remote Control Capabilities>
+<Asset Optimization, connectedTo, Condition Monitoring>
+<Asset Optimization, partOf, Asset Optimization>
+<Augmented Reality Visualization, connectedTo, What_If Scenario Analysis>
+<Augmented Reality Visualization, partOf, Augmented Reality Visualization>
+<Autonomous Operations, connectedTo, Operational Planning>
+<Condition Monitoring, connectedTo, Augmented Reality Visualization>
+<Condition Monitoring, partOf, Condition Monitoring>
+<Cyber_Physical Systems, sensors_connects, System Integration Architecture>
+<Edge Computing for Twins, connectedTo, Aerospace Digital Twins>
+<Edge Computing for Twins, connectedTo, Historical Data Analysis>
+<Edge Computing for Twins, connectedTo, Operational Planning>
+<Edge Computing for Twins, monitors, Remote Control Capabilities>
+<Energy Consumption Optimization, connectedTo, IoT Data Ingestion>
+<Energy Consumption Optimization, partOf, Energy Consumption Optimization>
+<Healthcare Digital Twins, connectedTo, Edge Computing for Twins>
+<Healthcare Digital Twins, connectedTo, Energy Consumption Optimization>
+<Historical Data Analysis, connectedTo, Remote Control Capabilities>
+<Interoperability Standards, connectedTo, Lifecycle Management>
+<Interoperability Standards, connectedTo, Remote Control Capabilities>
+<IoT Data Ingestion, connectedTo, Predictive Maintenance>
+<IoT Data Ingestion, partOf, IoT Data Ingestion>
+<Lifecycle Management, connectedTo, Model Creation>
+<Model Creation, connectedTo, Cyber_Physical Systems>
+<Performance Monitoring, connectedTo, Asset Optimization>
+<Performance Monitoring, connectedTo, Healthcare Digital Twins>
+<Predictive Maintenance, connectedTo, Healthcare Digital Twins>
+<Predictive Maintenance, partOf, Predictive Maintenance>
+<Remote Control Capabilities, connectedTo, Autonomous Operations>
+<Scalability of Models, connectedTo, Simulation and Prediction>
+<Simulation and Prediction, connectedTo, Interoperability Standards>
+<Simulation and Prediction, connectedTo, Remote Control Capabilities>
+<System Integration Architecture, connectedTo, Performance Monitoring>
+<System Integration Architecture, connectedTo, Remote Control Capabilities>
+<Virtual Reality Interaction, connectedTo, Scalability of Models>
+<What_If Scenario Analysis, connectedTo, Historical Data Analysis>
+<What_If Scenario Analysis, partOf, What_If Scenario Analysis>
diff --git a/test/graphviz/scanned_hard/graphviz_352.txt b/test/graphviz/scanned_hard/graphviz_352.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3a0c75a52a22384446cca6170c19f2fe39b8c92a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_352.txt
@@ -0,0 +1,35 @@
+<Automated Data Validation, connectedTo, Optical Character Recognition for Automation>
+<Automated Data Validation, partOf, Automated Data Validation>
+<Automated Testing, connectedTo, Customer Service Automation>
+<Automated Testing, partOf, Automated Testing>
+<Automation Opportunity Identification, connectedTo, Optical Character Recognition for Automation>
+<Automation Opportunity Identification, connectedTo, Workflow Analysis>
+<Compliance in Automation, connectedTo, Automation Opportunity Identification>
+<Compliance in Automation, connectedTo, Optical Character Recognition for Automation>
+<Compliance in Automation, connectedTo, Workflow Automation Platforms>
+<Customer Service Automation, connectedTo, Compliance in Automation>
+<Document Processing Automation, connectedTo, Report Generation Automation>
+<Error Handling in Automation, connectedTo, Security for Automation Bots>
+<Hyperautomation, connectedTo, Automated Testing>
+<Hyperautomation, partOf, Hyperautomation>
+<IT Operations Automation, connectedTo, Hyperautomation>
+<IT Operations Automation, partOf, IT Operations Automation>
+<Integration with Existing Systems, connectedTo, IT Operations Automation>
+<Integration with Existing Systems, partOf, Integration with Existing Systems>
+<Low_Code or No_Code Automation, connectedTo, Process Mining>
+<Optical Character Recognition for Automation, connectedTo, Document Processing Automation>
+<Optical Character Recognition for Automation, connectedTo, Security for Automation Bots>
+<Optical Character Recognition for Automation, connectedTo, Workflow Automation Platforms>
+<Report Generation Automation, connectedTo, Low_Code or No_Code Automation>
+<Report Generation Automation, connectedTo, Process Mining>
+<Report Generation Automation, connectedTo, Security for Automation Bots>
+<Report Generation Automation, connectedTo, Workflow Automation Platforms>
+<Robotic Process Automation Implementation, connectedTo, Customer Service Automation>
+<Robotic Process Automation Implementation, remedies_applies, Optical Character Recognition for Automation>
+<Scripting for Automation, connectedTo, Automated Data Validation>
+<Scripting for Automation, partOf, Scripting for Automation>
+<Security for Automation Bots, connectedTo, Low_Code or No_Code Automation>
+<Workflow Analysis, connectedTo, Scripting for Automation>
+<Workflow Analysis, partOf, Workflow Analysis>
+<Workflow Automation Platforms, connectedTo, Error Handling in Automation>
+<Workflow Automation Platforms, connectedTo, Integration with Existing Systems>
diff --git a/test/graphviz/scanned_hard/graphviz_353.dot b/test/graphviz/scanned_hard/graphviz_353.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6515443c1fb2a8544beb3f09592e33206b13dbcd
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_353.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=RL
+	N0 [label="Product Testing" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	N1 [label="Supplier Quality Management" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+	N2 [label="Regulatory Compliance for Quality" color="#64B5F6" fillcolor="#E3F2FD" shape=octagon style=filled]
+	N3 [label="Corrective and Preventive Actions" color="#64B5F6" fillcolor="#E3F2FD" shape=oval style=filled]
+	N4 [label="Non_Destructive Testing" color="#42A5F5" fillcolor="#F1F8FF" shape=parallelogram style=filled]
+	N5 [label="Service Quality Management" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+	N6 [label="Non_Conformance Management" color="#42A5F5" fillcolor="#F1F8FF" shape=plaintext style=filled]
+	N7 [label="Quality Assurance" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N8 [label="Continuous Improvement" color="#FF5722" fillcolor="#FFCCBC" shape=oval style=filled]
+	N9 [label="Measurement System Analysis" color="#FF5722" fillcolor="#FFCCBC" shape=Mdiamond style=filled]
+	N10 [label="Automated Optical Inspection" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N11 [label="Inspection Procedures" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	N12 [label=Metrology color="#64B5F6" fillcolor="#E3F2FD" shape=parallelogram style=filled]
+	N13 [label="Food Safety Quality Control" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N14 [label="Quality Standards Development" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	S0 [label="" color="#64B5F6" fillcolor="#E3F2FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FF5722" fillcolor="#FFCCBC" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#42A5F5" fillcolor="#F1F8FF" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#42A5F5" fillcolor="#F1F8FF" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#64B5F6" fillcolor="#E3F2FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label="Customer Feedback Analysis" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Defect Detection" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+		nest0_1 [label="Quality Data Analysis" color="#64B5F6" fillcolor="#E3F2FD" shape=Mdiamond style=filled]
+		nest0_2 [label="Hardware Quality Testing" color="#64B5F6" fillcolor="#E3F2FD" shape=folder style=filled]
+		nest0_3 [label="Six Sigma Methodologies" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram style=filled]
+		nest0_0 -> nest0_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Pharmaceutical Quality Control" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Process Monitoring" color="#42A5F5" fillcolor="#F1F8FF" shape=hexagon style=filled]
+		nest1_1 [label="Audit Planning" color="#64B5F6" fillcolor="#E3F2FD" shape=diamond style=filled]
+		nest1_0 -> nest1_1 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=defects_detects color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [label=reports_generates color="#42A5F5" dir=forward penwidth=1.5 style=dashed]
+	N13 -> N14 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N5 -> nest0_0 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N6 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N9 -> nest1_0 [label=improves color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest1_1 -> N1 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N11 -> S0 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	S0 -> N13 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	S0 -> N14 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N9 -> S1 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N14 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	S1 -> N11 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	S1 -> N12 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	S1 -> N13 [label=audits color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N10 -> S2 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N14 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	S2 -> N12 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	M0 -> N5 [color="#42A5F5" dir=forward penwidth=1.5 style=solid]
+	N3 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N4 -> M1 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N9 -> M1 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	M1 -> N12 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_353.txt b/test/graphviz/scanned_hard/graphviz_353.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c5fc5312f67d75a5205d5ed4c086d0afe8fc5761
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_353.txt
@@ -0,0 +1,41 @@
+<Audit Planning, connectedTo, Supplier Quality Management>
+<Audit Planning, partOf, Audit Planning>
+<Automated Optical Inspection, connectedTo, Inspection Procedures>
+<Automated Optical Inspection, connectedTo, Metrology>
+<Automated Optical Inspection, connectedTo, Quality Standards Development>
+<Continuous Improvement, defects_detects, Measurement System Analysis>
+<Corrective and Preventive Actions, connectedTo, Metrology>
+<Corrective and Preventive Actions, connectedTo, Non_Destructive Testing>
+<Corrective and Preventive Actions, connectedTo, Service Quality Management>
+<Defect Detection, connectedTo, Quality Data Analysis>
+<Defect Detection, partOf, Defect Detection>
+<Food Safety Quality Control, connectedTo, Quality Standards Development>
+<Hardware Quality Testing, connectedTo, Six Sigma Methodologies>
+<Hardware Quality Testing, partOf, Hardware Quality Testing>
+<Inspection Procedures, connectedTo, Food Safety Quality Control>
+<Inspection Procedures, connectedTo, Metrology>
+<Inspection Procedures, connectedTo, Quality Standards Development>
+<Measurement System Analysis, audits, Food Safety Quality Control>
+<Measurement System Analysis, connectedTo, Automated Optical Inspection>
+<Measurement System Analysis, connectedTo, Inspection Procedures>
+<Measurement System Analysis, connectedTo, Metrology>
+<Measurement System Analysis, connectedTo, Quality Standards Development>
+<Measurement System Analysis, improves, Process Monitoring>
+<Metrology, reports_generates, Food Safety Quality Control>
+<Non_Conformance Management, connectedTo, Quality Assurance>
+<Non_Destructive Testing, connectedTo, Metrology>
+<Non_Destructive Testing, connectedTo, Service Quality Management>
+<Process Monitoring, connectedTo, Audit Planning>
+<Process Monitoring, partOf, Process Monitoring>
+<Product Testing, connectedTo, Supplier Quality Management>
+<Quality Assurance, connectedTo, Continuous Improvement>
+<Quality Data Analysis, connectedTo, Hardware Quality Testing>
+<Quality Data Analysis, partOf, Quality Data Analysis>
+<Regulatory Compliance for Quality, connectedTo, Corrective and Preventive Actions>
+<Regulatory Compliance for Quality, connectedTo, Service Quality Management>
+<Service Quality Management, connectedTo, Defect Detection>
+<Service Quality Management, connectedTo, Non_Conformance Management>
+<Six Sigma Methodologies, connectedTo, Non_Conformance Management>
+<Six Sigma Methodologies, partOf, Six Sigma Methodologies>
+<Supplier Quality Management, connectedTo, Metrology>
+<Supplier Quality Management, connectedTo, Regulatory Compliance for Quality>
diff --git a/test/graphviz/scanned_hard/graphviz_354.dot b/test/graphviz/scanned_hard/graphviz_354.dot
new file mode 100644
index 0000000000000000000000000000000000000000..26f384a4f2d5bcc9e380053ff1d1f788a59251eb
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_354.dot
@@ -0,0 +1,66 @@
+digraph {
+	rankdir=TD
+	N0 [label="Cloud ERP Deployment" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N1 [label="ERP System Selection" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N2 [label="Data Migration" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+	N3 [label="Security Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=folder style=filled]
+	N4 [label="User Training" color="#E91E63" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N5 [label="Hybrid ERP Models" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+	N6 [label="Business Process Re_engineering" color="#CB9BE1" fillcolor="#F2E6F5" shape=folder style=filled]
+	N7 [label="Vendor Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=Mdiamond style=filled]
+	N8 [label="Human Capital Management" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N9 [label="Business Intelligence Integration" color="#AED581" fillcolor="#F0F4C3" shape=octagon style=filled]
+	N10 [label="Supply Chain Management" color="#E91E63" fillcolor="#FCE4EC" shape=folder style=filled]
+	N11 [label="User Access Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=plaintext style=filled]
+	N12 [label="Project Management" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	S0 [label="" color="#AED581" fillcolor="#F0F4C3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#AED581" fillcolor="#F0F4C3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#CB9BE1" fillcolor="#F2E6F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#AED581" fillcolor="#F0F4C3" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#FCE4EC" fontname=Helvetica fontsize=10 label=Customization labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="ERP Consulting" color="#CB9BE1" fillcolor="#F2E6F5" shape=hexagon style=filled]
+		nest0_1 [label="System Configuration" color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+		nest0_2 [label="Workflow Automation in ERP" color="#E91E63" fillcolor="#FCE4EC" shape=hexagon style=filled]
+		nest0_0 -> nest0_1 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F1F8E9" fontname=Helvetica fontsize=10 label="Reporting and Analytics" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Integration with Other Systems" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+		nest1_1 [label="Asset Management" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+		nest1_2 [label="Performance Optimization" color="#E91E63" fillcolor="#FCE4EC" shape=oval style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#CB9BE1" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=dashboards_generates color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [label=migrates color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N11 -> N12 [label=manufacturing_manages color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_2 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> nest1_0 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> S0 [color="#CB9BE1" dir=forward penwidth=1.5 style=solid]
+	S0 -> N12 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N11 [label=upgrades color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> S1 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	S1 -> N12 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S2 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	S2 -> N11 [color="#CB9BE1" dir=forward penwidth=1.5 style=solid]
+	S2 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N0 -> M1 [color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N3 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_355.dot b/test/graphviz/scanned_hard/graphviz_355.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ee4dc9ca67f199b1cd7e291a438b2f6927ee3625
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_355.dot
@@ -0,0 +1,71 @@
+digraph {
+	rankdir=LR
+	N0 [label="Supply Chain Traceability" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+	N1 [label="Farm Labor Management Software" color="#3F51B5" fillcolor="#C5CAE9" shape=box style=filled]
+	N2 [label="Sustainability Metrics Tracking" color="#FFE470" fillcolor="#FFFAE0" shape=folder style=filled]
+	N3 [label="Crop Health Monitoring" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+	N4 [label="Aquaculture Monitoring" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	N5 [label="Big Data Analytics for Farms" color="#FFE470" fillcolor="#FFFAE0" shape=hexagon style=filled]
+	N6 [label="Sensor Deployment" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+	N7 [label="Farm Management Software" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	N8 [label="Automated Irrigation" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N9 [label="Smart Greenhouses" color="#3F51B5" fillcolor="#C5CAE9" shape=box style=filled]
+	N10 [label="Blockchain for Agri_Supply Chain" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N11 [label="Precision Farming" color="#FFE470" fillcolor="#FFFAE0" shape=Mdiamond style=filled]
+	N12 [label="Automated Farm Machinery" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+	N13 [label="Forestry Management with Digital Tools" color="#FFE470" fillcolor="#FFFAE0" shape=hexagon style=filled]
+	N14 [label="Predictive Analytics for Harvest" color="#3F51B5" fillcolor="#C5CAE9" shape=octagon style=filled]
+	N15 [label="Vertical Farming Technology" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	S0 [label="" color="#3F51B5" fillcolor="#C5CAE9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFE470" fillcolor="#FFFAE0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#3F51B5" fillcolor="#C5CAE9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#3F51B5" fillcolor="#C5CAE9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Digital Agronomy" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Market Price Forecasting" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+		nest0_1 [label="Variable Rate Application" color="#FF5722" fillcolor="#FFCCBC" shape=octagon style=filled]
+		nest0_0 -> nest0_1 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Satellite Imaging" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Herd Health Monitoring" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram style=filled]
+		nest1_1 [label="Connectivity Solutions" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+		nest1_0 -> nest1_1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#3F51B5" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N12 -> N13 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N13 -> N14 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N14 -> N15 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> nest0_0 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest1_1 -> N10 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N7 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N11 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N14 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	S0 -> N15 [color="#FF5722" dir=forward penwidth=1.5 style=dashed]
+	N1 -> S1 [color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	S1 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [label=reports color="#3F51B5" dir=forward penwidth=1.5 style=solid]
+	N0 -> M0 [label=manages color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N3 -> M0 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	M0 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> M1 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	M1 -> N9 [color="#FF5722" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_355.txt b/test/graphviz/scanned_hard/graphviz_355.txt
new file mode 100644
index 0000000000000000000000000000000000000000..92c7635fabbd315daa3ac018b5de2b8a5f32f69e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_355.txt
@@ -0,0 +1,36 @@
+<Aquaculture Monitoring, connectedTo, Big Data Analytics for Farms>
+<Automated Farm Machinery, connectedTo, Forestry Management with Digital Tools>
+<Automated Irrigation, connectedTo, Smart Greenhouses>
+<Big Data Analytics for Farms, connectedTo, Sensor Deployment>
+<Blockchain for Agri_Supply Chain, connectedTo, Precision Farming>
+<Connectivity Solutions, connectedTo, Blockchain for Agri_Supply Chain>
+<Connectivity Solutions, partOf, Connectivity Solutions>
+<Crop Health Monitoring, connectedTo, Aquaculture Monitoring>
+<Crop Health Monitoring, connectedTo, Big Data Analytics for Farms>
+<Farm Labor Management Software, connectedTo, Big Data Analytics for Farms>
+<Farm Labor Management Software, connectedTo, Crop Health Monitoring>
+<Farm Labor Management Software, connectedTo, Precision Farming>
+<Farm Labor Management Software, connectedTo, Smart Greenhouses>
+<Farm Labor Management Software, connectedTo, Sustainability Metrics Tracking>
+<Farm Management Software, connectedTo, Automated Irrigation>
+<Farm Management Software, connectedTo, Herd Health Monitoring>
+<Farm Management Software, connectedTo, Precision Farming>
+<Farm Management Software, connectedTo, Predictive Analytics for Harvest>
+<Farm Management Software, connectedTo, Smart Greenhouses>
+<Farm Management Software, connectedTo, Vertical Farming Technology>
+<Forestry Management with Digital Tools, connectedTo, Predictive Analytics for Harvest>
+<Herd Health Monitoring, connectedTo, Connectivity Solutions>
+<Herd Health Monitoring, partOf, Herd Health Monitoring>
+<Market Price Forecasting, connectedTo, Variable Rate Application>
+<Market Price Forecasting, partOf, Market Price Forecasting>
+<Precision Farming, connectedTo, Automated Farm Machinery>
+<Predictive Analytics for Harvest, connectedTo, Vertical Farming Technology>
+<Sensor Deployment, connectedTo, Farm Management Software>
+<Smart Greenhouses, connectedTo, Blockchain for Agri_Supply Chain>
+<Smart Greenhouses, connectedTo, Market Price Forecasting>
+<Supply Chain Traceability, connectedTo, Farm Labor Management Software>
+<Supply Chain Traceability, manages, Big Data Analytics for Farms>
+<Sustainability Metrics Tracking, connectedTo, Crop Health Monitoring>
+<Sustainability Metrics Tracking, reports, Big Data Analytics for Farms>
+<Variable Rate Application, connectedTo, Automated Irrigation>
+<Variable Rate Application, partOf, Variable Rate Application>
diff --git a/test/graphviz/scanned_hard/graphviz_356.dot b/test/graphviz/scanned_hard/graphviz_356.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7abc213d7bae90218e2206ebc0a148494ea85fa2
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_356.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=RL
+	N0 [label="Prize Pool Management" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N1 [label="Esports Education Programs" color="#E91E63" fillcolor="#FCE4EC" shape=oval style=filled]
+	N2 [label="Gaming Hardware Optimization" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N3 [label="Player Wellness Programs" color="#64B5F6" fillcolor="#E3F2FD" shape=parallelogram style=filled]
+	N4 [label="Audience Engagement" color="#64B5F6" fillcolor="#E3F2FD" shape=parallelogram style=filled]
+	N5 [label="Network Infrastructure for Tournaments" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N6 [label="Esports Team Ownership" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N7 [label="Esports Analytics" color="#FFF9AE" fillcolor="#FFFCE6" shape=plaintext style=filled]
+	N8 [label="Rules and Regulations Enforcement" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+	N9 [label="Team Management" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N10 [label="Talent Representation" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N11 [label="Fan Community Building" color="#FFF9AE" fillcolor="#FFFCE6" shape=Mdiamond style=filled]
+	N12 [label="Data Security for Competitions" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N13 [label="Event Broadcasting" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	S0 [label="" color="#FFF9AE" fillcolor="#FFFCE6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#FFF9AE" fillcolor="#FFFCE6" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Content Creation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Sponsorship Acquisition" color="#64B5F6" fillcolor="#E3F2FD" shape=diamond style=filled]
+		nest0_1 [label="Merchandise Sales" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+		nest0_2 [label="Ticketing Sales" color="#E91E63" fillcolor="#FCE4EC" shape=octagon style=filled]
+		nest0_3 [label="Training Regimen" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Media Rights Negotiation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Anti_Cheat Measures" color="#FFF9AE" fillcolor="#FFFCE6" shape=box style=filled]
+		nest1_1 [label="Nutrition for Esports Athletes" color="#E91E63" fillcolor="#FCE4EC" shape=plaintext style=filled]
+		nest1_2 [label="Physical Conditioning for Players" color="#64B5F6" fillcolor="#E3F2FD" shape=parallelogram style=filled]
+		nest1_3 [label="Social Media Management" color="#E91E63" fillcolor="#FCE4EC" shape=diamond style=filled]
+		nest1_0 -> nest1_1 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+		nest1_2 -> nest1_3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [label=integrity_ensures color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	N12 -> N13 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N12 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> nest1_0 [color="#E91E63" dir=forward penwidth=1.5 style=solid]
+	nest1_3 -> N4 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N6 -> S0 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N13 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	S0 -> N11 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> S1 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N12 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N9 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N8 [color="#E91E63" dir=forward penwidth=1.5 style=dashed]
+	N0 -> nest1_3 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N12 [color="#64B5F6" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_357.dot b/test/graphviz/scanned_hard/graphviz_357.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cc7c1b5f8195899e3231a84b9bd44b311bb266f3
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_357.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=LR
+	N0 [label="Neural Data Analysis" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N1 [label="Cognitive Neuroscience" color="#E0E0E0" fillcolor="#EBEBEB" shape=parallelogram style=filled]
+	N2 [label=Neuroinformatics color="#AB47BC" fillcolor="#F3E5F5" shape=Mdiamond style=filled]
+	N3 [label="Synaptic Plasticity Study" color="#AB47BC" fillcolor="#F3E5F5" shape=plaintext style=filled]
+	N4 [label="Genetic Basis of Brain Disorders" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N5 [label=Optogenetics color="#AB47BC" fillcolor="#F3E5F5" shape=Mdiamond style=filled]
+	N6 [label="Cellular Neuroscience" color="#94C0C0" fillcolor="#CADEDE" shape=octagon style=filled]
+	N7 [label="Addiction Neuroscience" color="#94C0C0" fillcolor="#CADEDE" shape=folder style=filled]
+	N8 [label="Neurodegenerative Disease Research" color="#E0E0E0" fillcolor="#EBEBEB" shape=hexagon style=filled]
+	N9 [label="Neurotransmitter Research" color="#94C0C0" fillcolor="#CADEDE" shape=plaintext style=filled]
+	N10 [label=Neuroprosthetics color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N11 [label="Deep Brain Stimulation" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	S0 [label="" color="#94C0C0" fillcolor="#CADEDE" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#AB47BC" fillcolor="#F3E5F5" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#E0E0E0" fillcolor="#EBEBEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#E0E0E0" fillcolor="#EBEBEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#E0E0E0" fillcolor="#EBEBEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#ECEFF1" fontname=Helvetica fontsize=10 label="Sleep Research" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Molecular Neuroscience" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+		nest0_1 [label="Gene Therapy for Neurological Disorders" color="#94C0C0" fillcolor="#CADEDE" shape=folder style=filled]
+		nest0_2 [label="Spike Train Analysis" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+		nest0_3 [label="Brain Imaging" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+		nest0_0 -> nest0_1 [label=educates color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+		nest0_1 -> nest0_2 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+		nest0_2 -> nest0_3 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E8F5E9" fontname=Helvetica fontsize=10 label="Systems Neuroscience" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Neural Network Analysis" color="#94C0C0" fillcolor="#CADEDE" shape=plaintext style=filled]
+		nest1_1 [label="Transcranial Magnetic Stimulation" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+		nest1_2 [label="Behavioral Neuroscience" color="#E0E0E0" fillcolor="#EBEBEB" shape=hexagon style=filled]
+		nest1_3 [label="Memory Formation Research" color="#E0E0E0" fillcolor="#EBEBEB" shape=octagon style=filled]
+		nest1_0 -> nest1_1 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+		nest1_2 -> nest1_3 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=trains color="#E0E0E0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=modifies color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=processes_data color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#E0E0E0" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#E0E0E0" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N7 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest0_3 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> S0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> S1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N10 [color="#E0E0E0" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N11 [color="#E0E0E0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> S2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S2 -> N7 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	S2 -> N11 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N8 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N2 -> M0 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M0 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	M1 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_357.txt b/test/graphviz/scanned_hard/graphviz_357.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9c74076812ad80662e44b38bc73e4efe2dd7e279
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_357.txt
@@ -0,0 +1,42 @@
+<Addiction Neuroscience, connectedTo, Deep Brain Stimulation>
+<Addiction Neuroscience, connectedTo, Molecular Neuroscience>
+<Addiction Neuroscience, connectedTo, Neurodegenerative Disease Research>
+<Addiction Neuroscience, connectedTo, Neuroprosthetics>
+<Addiction Neuroscience, connectedTo, Neurotransmitter Research>
+<Behavioral Neuroscience, connectedTo, Memory Formation Research>
+<Behavioral Neuroscience, partOf, Behavioral Neuroscience>
+<Brain Imaging, connectedTo, Neurotransmitter Research>
+<Brain Imaging, partOf, Brain Imaging>
+<Cellular Neuroscience, processes_data, Addiction Neuroscience>
+<Cognitive Neuroscience, connectedTo, Addiction Neuroscience>
+<Cognitive Neuroscience, connectedTo, Neuroinformatics>
+<Gene Therapy for Neurological Disorders, connectedTo, Spike Train Analysis>
+<Gene Therapy for Neurological Disorders, partOf, Gene Therapy for Neurological Disorders>
+<Genetic Basis of Brain Disorders, modifies, Optogenetics>
+<Memory Formation Research, connectedTo, Addiction Neuroscience>
+<Memory Formation Research, partOf, Memory Formation Research>
+<Molecular Neuroscience, educates, Gene Therapy for Neurological Disorders>
+<Molecular Neuroscience, partOf, Molecular Neuroscience>
+<Neural Data Analysis, connectedTo, Cognitive Neuroscience>
+<Neural Data Analysis, connectedTo, Genetic Basis of Brain Disorders>
+<Neural Network Analysis, connectedTo, Transcranial Magnetic Stimulation>
+<Neural Network Analysis, partOf, Neural Network Analysis>
+<Neurodegenerative Disease Research, connectedTo, Neurotransmitter Research>
+<Neuroinformatics, connectedTo, Addiction Neuroscience>
+<Neuroinformatics, connectedTo, Genetic Basis of Brain Disorders>
+<Neuroinformatics, connectedTo, Neural Network Analysis>
+<Neuroinformatics, connectedTo, Synaptic Plasticity Study>
+<Neuroprosthetics, connectedTo, Deep Brain Stimulation>
+<Neurotransmitter Research, connectedTo, Neuroprosthetics>
+<Optogenetics, connectedTo, Addiction Neuroscience>
+<Optogenetics, connectedTo, Cellular Neuroscience>
+<Optogenetics, connectedTo, Deep Brain Stimulation>
+<Optogenetics, connectedTo, Neurodegenerative Disease Research>
+<Optogenetics, connectedTo, Neuroprosthetics>
+<Spike Train Analysis, connectedTo, Brain Imaging>
+<Spike Train Analysis, partOf, Spike Train Analysis>
+<Synaptic Plasticity Study, connectedTo, Neurodegenerative Disease Research>
+<Synaptic Plasticity Study, connectedTo, Optogenetics>
+<Synaptic Plasticity Study, trains, Genetic Basis of Brain Disorders>
+<Transcranial Magnetic Stimulation, connectedTo, Behavioral Neuroscience>
+<Transcranial Magnetic Stimulation, partOf, Transcranial Magnetic Stimulation>
diff --git a/test/graphviz/scanned_hard/graphviz_358.dot b/test/graphviz/scanned_hard/graphviz_358.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4bb6f1cc4e8ddbf0d5774a08ecd0e646197845ef
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_358.dot
@@ -0,0 +1,62 @@
+digraph {
+	rankdir=TD
+	N0 [label="Traditional Knowledge Documentation" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N1 [label="Photogrammetry for Documentation" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N2 [label="Archival Management" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N3 [label="Restoration Techniques" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N4 [label="Digital Documentation" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+	N5 [label="GIS Mapping for Heritage Sites" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N6 [label="Illicit Trafficking Control" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N7 [label="Heritage Site Management" color="#80DDEA" fillcolor="#D3F7F9" shape=box style=filled]
+	N8 [label="Oral History Collection" color="#26A69A" fillcolor="#E0F2F1" shape=folder style=filled]
+	N9 [label="Artifact Conservation" color="#AABEC6" fillcolor="#E0E6E9" shape=plaintext style=filled]
+	N10 [label="Conservation Science" color="#AABEC6" fillcolor="#E0E6E9" shape=Mdiamond style=filled]
+	N11 [label="Crowdsourcing for Heritage Data" color="#26A69A" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	S0 [label="" color="#AABEC6" fillcolor="#E0E6E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#AABEC6" fillcolor="#E0E6E9" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Public Education Programs" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Museum Collection Management" color="#80DDEA" fillcolor="#D3F7F9" shape=diamond style=filled]
+		nest0_1 [label="3D Scanning of Artifacts" color="#AABEC6" fillcolor="#E0E6E9" shape=hexagon style=filled]
+		nest0_2 [label="Indigenous Cultural Heritage Rights" color="#26A69A" fillcolor="#E0F2F1" shape=folder style=filled]
+		nest0_3 [label="Climate Change Impact on Heritage" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+		nest0_1 -> nest0_2 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+		nest0_2 -> nest0_3 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#FFF3E0" fontname=Helvetica fontsize=10 label="Dating Techniques" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Underwater Cultural Heritage" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+		nest1_1 [label="Heritage Impact Assessment" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+		nest1_2 [label="Sustainable Heritage Management" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+		nest1_3 [label="Legal Protection for Heritage" color="#AABEC6" fillcolor="#E0E6E9" shape=oval style=filled]
+		nest1_0 -> nest1_1 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+		nest1_2 -> nest1_3 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [label=traditions_sustains color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=analyzes_data color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=protects color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#26A69A" dir=forward penwidth=1.5 style=solid]
+	N7 -> nest0_0 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	nest0_3 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> nest1_0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	nest1_3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> S0 [color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N10 [label=buildings_maintains color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N11 [color="#26A69A" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M1 -> N3 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	nest0_0 -> N0 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N0 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_359.dot b/test/graphviz/scanned_hard/graphviz_359.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f12574911b708cd1699dc049160502454b31c6db
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_359.dot
@@ -0,0 +1,70 @@
+digraph {
+	rankdir=BT
+	N0 [label="Metabolic Pathway Engineering" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N1 [label="Biofoundry Operations" color="#FFE470" fillcolor="#FFFAE0" shape=plaintext style=filled]
+	N2 [label="Regulatory Frameworks" color="#B8C0F5" fillcolor="#ECF0FD" shape=hexagon style=filled]
+	N3 [label="Directed Evolution Automation" color="#FFE470" fillcolor="#FFFAE0" shape=oval style=filled]
+	N4 [label="Synthetic Gene Networks" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N5 [label="Synthetic Organism Design" color="#FFE470" fillcolor="#FFFAE0" shape=Mdiamond style=filled]
+	N6 [label="Risk Assessment" color="#B8C0F5" fillcolor="#ECF0FD" shape=octagon style=filled]
+	N7 [label="Drug Delivery Systems" color="#FFE470" fillcolor="#FFFAE0" shape=oval style=filled]
+	N8 [label=Bio_manufacturing color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N9 [label="Cell_Free Systems" color="#FFE470" fillcolor="#FFFAE0" shape=folder style=filled]
+	N10 [label="Genetic Circuit Design" color="#FFE470" fillcolor="#FFFAE0" shape=octagon style=filled]
+	N11 [label="Public Engagement" color="#4285F4" fillcolor="#D0E0F8" shape=parallelogram style=filled]
+	N12 [label="DNA Storage Technologies" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+	S0 [label="" color="#4285F4" fillcolor="#D0E0F8" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#B8C0F5" fillcolor="#ECF0FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S2 [label="" color="#B8C0F5" fillcolor="#ECF0FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#FFE470" fillcolor="#FFFAE0" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#B8C0F5" fillcolor="#ECF0FD" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#F3E5F5" fontname=Helvetica fontsize=10 label="Biocontainment Strategies" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="Directed Evolution" color="#B8C0F5" fillcolor="#ECF0FD" shape=parallelogram style=filled]
+		nest0_1 [label="DNA Synthesis" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+		nest0_0 -> nest0_1 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Protein Design" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Sustainable Chemical Production" color="#B8C0F5" fillcolor="#ECF0FD" shape=oval style=filled]
+		nest1_1 [label="Ethical Implications" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+		nest1_2 [label="Modular Biology Design" color="#4285F4" fillcolor="#D0E0F8" shape=folder style=filled]
+		nest1_0 -> nest1_1 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+		nest1_1 -> nest1_2 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	}
+	N0 -> N1 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N11 -> N12 [label=optimizes color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N3 -> nest0_0 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	nest0_1 -> N6 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N6 -> nest1_0 [label=rewrites color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N4 [color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N8 -> S0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S0 -> N12 [label=data_processes color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N11 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N5 -> S1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> S2 [color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N12 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	S2 -> N11 [color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N9 -> M0 [label=ferments color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N1 -> M0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> M0 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	M0 -> N11 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M1 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	M1 -> N6 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_359.txt b/test/graphviz/scanned_hard/graphviz_359.txt
new file mode 100644
index 0000000000000000000000000000000000000000..02568b8f2a979afe772df85ffdcdd859c7030402
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_359.txt
@@ -0,0 +1,36 @@
+<Bio_manufacturing, connectedTo, Cell_Free Systems>
+<Bio_manufacturing, connectedTo, Genetic Circuit Design>
+<Bio_manufacturing, connectedTo, Public Engagement>
+<Bio_manufacturing, data_processes, DNA Storage Technologies>
+<Biofoundry Operations, connectedTo, Public Engagement>
+<Biofoundry Operations, connectedTo, Regulatory Frameworks>
+<Cell_Free Systems, connectedTo, DNA Storage Technologies>
+<Cell_Free Systems, connectedTo, Genetic Circuit Design>
+<Cell_Free Systems, connectedTo, Public Engagement>
+<Cell_Free Systems, ferments, Public Engagement>
+<DNA Synthesis, connectedTo, Risk Assessment>
+<DNA Synthesis, partOf, DNA Synthesis>
+<Directed Evolution, connectedTo, DNA Synthesis>
+<Directed Evolution, partOf, Directed Evolution>
+<Directed Evolution Automation, connectedTo, Directed Evolution>
+<Directed Evolution Automation, connectedTo, Risk Assessment>
+<Directed Evolution Automation, connectedTo, Synthetic Gene Networks>
+<Drug Delivery Systems, connectedTo, Bio_manufacturing>
+<Drug Delivery Systems, connectedTo, Public Engagement>
+<Ethical Implications, connectedTo, Modular Biology Design>
+<Ethical Implications, partOf, Ethical Implications>
+<Genetic Circuit Design, connectedTo, Public Engagement>
+<Metabolic Pathway Engineering, connectedTo, Biofoundry Operations>
+<Modular Biology Design, connectedTo, Synthetic Gene Networks>
+<Modular Biology Design, partOf, Modular Biology Design>
+<Public Engagement, optimizes, DNA Storage Technologies>
+<Regulatory Frameworks, connectedTo, Directed Evolution Automation>
+<Regulatory Frameworks, connectedTo, Risk Assessment>
+<Risk Assessment, connectedTo, Drug Delivery Systems>
+<Risk Assessment, rewrites, Sustainable Chemical Production>
+<Sustainable Chemical Production, connectedTo, Ethical Implications>
+<Sustainable Chemical Production, partOf, Sustainable Chemical Production>
+<Synthetic Gene Networks, connectedTo, Synthetic Organism Design>
+<Synthetic Organism Design, connectedTo, Genetic Circuit Design>
+<Synthetic Organism Design, connectedTo, Public Engagement>
+<Synthetic Organism Design, connectedTo, Risk Assessment>
diff --git a/test/graphviz/scanned_hard/graphviz_36.txt b/test/graphviz/scanned_hard/graphviz_36.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8da94d37b3595fd1d752f4898bc769d89959103d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_36.txt
@@ -0,0 +1,11 @@
+<Collaborative Planning, transparency, Sustainability Initiatives>
+<Container Tracking, certifies, Last_Mile Delivery Optimization>
+<Container Tracking, connectedTo, Supplier Relationship Management>
+<Data Analytics for Supply Chain, connectedTo, Last_Mile Delivery Optimization>
+<Last_Mile Delivery Optimization, secures, Container Tracking>
+<Material Flow Management, analyzes, Production Scheduling Integration>
+<Production Scheduling Integration, connectedTo, Data Analytics for Supply Chain>
+<Production Scheduling Integration, negotiates, Resilience Planning>
+<Resilience Planning, procures, Inventory Management>
+<Supplier Relationship Management, connectedTo, Resilience Planning>
+<Sustainability Initiatives, connectedTo, Material Flow Management>
diff --git a/test/graphviz/scanned_hard/graphviz_360.dot b/test/graphviz/scanned_hard/graphviz_360.dot
new file mode 100644
index 0000000000000000000000000000000000000000..754be98c39ed381b790499503d939a0c3b8ae622
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_360.dot
@@ -0,0 +1,66 @@
+digraph {
+	rankdir=RL
+	N0 [label="Collaborative Learning Platforms" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N1 [label="Formative Assessment Tools" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N2 [label="Educational Robotics" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N3 [label="Data Privacy in Education" color="#A188DB" fillcolor="#DED7F0" shape=ellipse style=filled]
+	N4 [label="Student Information Systems" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N5 [label="Remote Learning Solutions" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N6 [label="Adaptive Learning Systems" color="#EAEFA5" fillcolor="#FDFCEB" shape=folder style=filled]
+	N7 [label="Accessibility in EdTech" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N8 [label="Educational Data Mining" color="#EAEFA5" fillcolor="#FDFCEB" shape=octagon style=filled]
+	N9 [label="Augmented Reality in Education" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N10 [label="E_Learning Platform Design" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N11 [label="Social_Emotional Learning Tools" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	S0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	S1 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	M1 [label="" color="#EAEFA5" fillcolor="#FDFCEB" fixedsize=true height=0.1 shape=box style=filled width=0.1]
+	subgraph_anchor_Group0 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group0 {
+		color=gray50 fillcolor="#E0F2F1" fontname=Helvetica fontsize=10 label="Professional Development for Educators" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest0_0 [label="AI in Education" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+		nest0_1 [label="EdTech Hardware Solutions" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+		nest0_0 -> nest0_1 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	}
+	subgraph_anchor_Group1 [label="" height=0.01 shape=point style=invis width=0.01]
+	subgraph cluster_Group1 {
+		color=gray50 fillcolor="#EDE7F6" fontname=Helvetica fontsize=10 label="Interactive Content Creation" labeljust=l labelloc=t pencolor=gray50 penwidth=1.5 style="rounded,filled,dashed"
+		nest1_0 [label="Competency_Based Learning Platforms" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+		nest1_1 [label="Digital Textbooks" color="#A188DB" fillcolor="#DED7F0" shape=folder style=filled]
+		nest1_2 [label="Cybersecurity for EdTech" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+		nest1_0 -> nest1_1 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+		nest1_1 -> nest1_2 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	}
+	N0 -> N1 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	N5 -> nest0_0 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest0_1 -> N5 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N10 -> nest1_0 [label=privacy_protects color="#000000" dir=forward penwidth=1.5 style=solid]
+	nest1_2 -> N6 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N6 -> S0 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	S0 -> N9 [label=analyzes color="#AED581" dir=forward penwidth=1.5 style=solid]
+	S0 -> N10 [label=manages color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	S0 -> N8 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N6 -> S1 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	S1 -> N10 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	S1 -> N8 [color="#EAEFA5" dir=forward penwidth=1.5 style=solid]
+	S1 -> N9 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	S1 -> N11 [color="#A188DB" dir=forward penwidth=1.5 style=dashed]
+	N3 -> M0 [color="#EAEFA5" dir=forward penwidth=1.5 style=dashed]
+	N6 -> M0 [color="#A188DB" dir=forward penwidth=1.5 style=solid]
+	N2 -> M0 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	M0 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> M1 [color="#AED581" dir=forward penwidth=1.5 style=dashed]
+	N0 -> M1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	M1 -> N4 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_360.txt b/test/graphviz/scanned_hard/graphviz_360.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4041597739e2958128ee856dfd5d39770a5ffe36
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_360.txt
@@ -0,0 +1,33 @@
+<AI in Education, connectedTo, EdTech Hardware Solutions>
+<AI in Education, partOf, AI in Education>
+<Accessibility in EdTech, connectedTo, Educational Data Mining>
+<Adaptive Learning Systems, analyzes, Augmented Reality in Education>
+<Adaptive Learning Systems, connectedTo, Accessibility in EdTech>
+<Adaptive Learning Systems, connectedTo, Augmented Reality in Education>
+<Adaptive Learning Systems, connectedTo, E_Learning Platform Design>
+<Adaptive Learning Systems, connectedTo, Educational Data Mining>
+<Adaptive Learning Systems, connectedTo, Social_Emotional Learning Tools>
+<Adaptive Learning Systems, manages, E_Learning Platform Design>
+<Augmented Reality in Education, connectedTo, E_Learning Platform Design>
+<Collaborative Learning Platforms, connectedTo, Formative Assessment Tools>
+<Collaborative Learning Platforms, connectedTo, Student Information Systems>
+<Competency_Based Learning Platforms, connectedTo, Digital Textbooks>
+<Competency_Based Learning Platforms, partOf, Competency_Based Learning Platforms>
+<Cybersecurity for EdTech, connectedTo, Adaptive Learning Systems>
+<Cybersecurity for EdTech, partOf, Cybersecurity for EdTech>
+<Data Privacy in Education, connectedTo, E_Learning Platform Design>
+<Data Privacy in Education, connectedTo, Student Information Systems>
+<Digital Textbooks, connectedTo, Cybersecurity for EdTech>
+<Digital Textbooks, partOf, Digital Textbooks>
+<E_Learning Platform Design, connectedTo, Social_Emotional Learning Tools>
+<E_Learning Platform Design, privacy_protects, Competency_Based Learning Platforms>
+<EdTech Hardware Solutions, connectedTo, Remote Learning Solutions>
+<EdTech Hardware Solutions, partOf, EdTech Hardware Solutions>
+<Educational Data Mining, connectedTo, Augmented Reality in Education>
+<Educational Robotics, connectedTo, Data Privacy in Education>
+<Educational Robotics, connectedTo, E_Learning Platform Design>
+<Educational Robotics, connectedTo, Student Information Systems>
+<Formative Assessment Tools, connectedTo, Educational Robotics>
+<Remote Learning Solutions, connectedTo, AI in Education>
+<Remote Learning Solutions, connectedTo, Adaptive Learning Systems>
+<Student Information Systems, connectedTo, Remote Learning Solutions>
diff --git a/test/graphviz/scanned_hard/graphviz_37.txt b/test/graphviz/scanned_hard/graphviz_37.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c5bae844de1864fb94a1f3a58af4f70f46266fd5
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_37.txt
@@ -0,0 +1,8 @@
+<Drilling and Blasting, maintains, Ore Extraction>
+<Energy Management, connectedTo, Reclamation>
+<Exploration, safety, Energy Management>
+<Ore Extraction, connectedTo, Water Management>
+<Reclamation, connectedTo, Waste Rock Management>
+<Waste Rock Management, connectedTo, Drilling and Blasting>
+<Water Management, connectedTo, Waste Rock Management>
+<Water Management, refines, Mine Dewatering>
diff --git a/test/graphviz/scanned_hard/graphviz_38.txt b/test/graphviz/scanned_hard/graphviz_38.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d4d41e0e4afce80635cd883a3f8403dcf243ea3a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_38.txt
@@ -0,0 +1,11 @@
+<Autonomous Vessels, protects, Shipbuilding>
+<Fisheries Management, conserves, Ship Registry>
+<Navigation, connectedTo, Subsea Cable Laying>
+<Navigation, operates, Autonomous Vessels>
+<Pilotage, equipment, Maritime Law Compliance>
+<Ship Registry, connectedTo, Fisheries Management>
+<Ship Registry, connectedTo, Navigation>
+<Shipbuilding, alerts, Subsea Cable Laying>
+<Subsea Cable Laying, maintains, Pilotage>
+<Vessel Chartering, connectedTo, Fisheries Management>
+<Voyage Optimization, analyzes, Vessel Chartering>
diff --git a/test/graphviz/scanned_hard/graphviz_4.txt b/test/graphviz/scanned_hard/graphviz_4.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5bfd8dcc579d7e0e9dfd64d470461ebb0761bb58
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_4.txt
@@ -0,0 +1,9 @@
+<Digital Resource Management, coordinates, Transcript Issuance>
+<Faculty Recruitment, connectedTo, Library Registration>
+<Lecture Delivery, grants, Orientation>
+<Library Registration, connectedTo, Faculty Recruitment>
+<Library Registration, connectedTo, Scholarship Evaluation>
+<Orientation, connectedTo, Study Abroad Program>
+<Scholarship Evaluation, plans, Digital Resource Management>
+<Study Abroad Program, trains, Assignment Submission>
+<Transcript Issuance, connectedTo, Lecture Delivery>
diff --git a/test/graphviz/scanned_hard/graphviz_40.txt b/test/graphviz/scanned_hard/graphviz_40.txt
new file mode 100644
index 0000000000000000000000000000000000000000..aae0ec7e737ddb72517afef9a6ad4eb9b2e52d1b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_40.txt
@@ -0,0 +1,12 @@
+<Atmospheric Monitoring, predicts, International Climate Negotiation>
+<Climate Impact Assessment, connectedTo, Ocean Current Analysis>
+<Data Collection, connectedTo, Climate Modeling>
+<Drought Monitoring and Forecasting, connectedTo, Permafrost Thaw Assessment>
+<Ice Sheet Dynamics, policies, Drought Monitoring and Forecasting>
+<International Climate Negotiation, adapts, Water Resource Management under Climate Change>
+<Mitigation Technology Evaluation, connectedTo, Data Collection>
+<Ocean Current Analysis, connectedTo, Ice Sheet Dynamics>
+<Permafrost Thaw Assessment, quantifies, Solar Radiation Management Research>
+<Solar Radiation Management Research, connectedTo, Mitigation Technology Evaluation>
+<Solar Radiation Management Research, educates, Atmospheric Monitoring>
+<Water Resource Management under Climate Change, connectedTo, Mitigation Technology Evaluation>
diff --git a/test/graphviz/scanned_hard/graphviz_41.dot b/test/graphviz/scanned_hard/graphviz_41.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3c7cef3bfba1766868d1051e3c8347b5884fce54
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_41.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=LR
+	N0 [label="Temperature Monitoring" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N1 [label="Numerical Weather Prediction" color="#F7BEE0" fillcolor="#FAEBF3" shape=plaintext style=filled]
+	N2 [label="Climate Data Archiving" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N3 [label="Seasonal Outlook Preparation" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N4 [label="Severe Weather Warning" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N5 [label="Meteorological Station Maintenance" color="#F7BEE0" fillcolor="#FAEBF3" shape=parallelogram style=filled]
+	N6 [label="Radar Imaging" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N7 [label="Snowfall Measurement" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N8 [label="Hurricane Trajectory Modeling" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N9 [label="Ocean_Atmosphere Interaction Study" color="#7986CB" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N10 [label="Marine Weather Forecast" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=validates color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=calibrates color="#F7BEE0" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=measures color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=classifies color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#7986CB" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#FFCC80" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N0 -> N2 [label=integrates color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N9 [label=visualizes color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_42.txt b/test/graphviz/scanned_hard/graphviz_42.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d895ce9d354353524c21f0ad08353b6e85827367
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_42.txt
@@ -0,0 +1,12 @@
+<Composting, reports, Transfer Station Management>
+<Extended Producer Responsibility, connectedTo, Waste Collection>
+<Illegal Dumping Monitoring, connectedTo, Material Recovery Facility Operation>
+<Landfill Gas Collection, connectedTo, Waste Management Policy Development>
+<Material Recovery Facility Operation, monitors, Transfer Station Management>
+<Paper Recycling, develops, Landfill Gas Collection>
+<Plastic Recycling Technologies, connectedTo, Composting>
+<Textile Recycling, extracts, Paper Recycling>
+<Transfer Station Management, controls, Illegal Dumping Monitoring>
+<Waste Audit, connectedTo, Textile Recycling>
+<Waste Collection, connectedTo, Plastic Recycling Technologies>
+<Waste Management Policy Development, incinerates, Extended Producer Responsibility>
diff --git a/test/graphviz/scanned_hard/graphviz_43.txt b/test/graphviz/scanned_hard/graphviz_43.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e708b557b9996ce2c35d73e6d65bf3074ee2bbd0
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_43.txt
@@ -0,0 +1,13 @@
+<Desalination, treats, Water Conservation Planning>
+<Hydroelectric Power Generation, measures, Water Loss Detection>
+<Industrial Water Use Optimization, connectedTo, Water Treatment>
+<Pollution Source Identification, connectedTo, Industrial Water Use Optimization>
+<Smart Water Networks, controls, Pollution Source Identification>
+<Wastewater Collection, connectedTo, Water Conservation Planning>
+<Wastewater Collection, secures, Water Infrastructure Maintenance>
+<Water Infrastructure Maintenance, connectedTo, Hydroelectric Power Generation>
+<Water Infrastructure Maintenance, predicts, Water Source Identification>
+<Water Loss Detection, designs, Water Meter Reading>
+<Water Meter Reading, models, Desalination>
+<Water Source Identification, repairs, Smart Water Networks>
+<Water Treatment, connectedTo, Wastewater Collection>
diff --git a/test/graphviz/scanned_hard/graphviz_44.dot b/test/graphviz/scanned_hard/graphviz_44.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7f40899b11bc1ecb5e23d58e18bff9f06e8e9d42
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_44.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=LR
+	N0 [label="Commercial Recycling Solutions" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N1 [label="Cleaning and Processing" color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+	N2 [label="Sorting and Segregation" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N3 [label="Recycling Facility Optimization" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N4 [label="New Product Manufacturing" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N5 [label="Mechanical Recycling" color="#4FC3F7" fillcolor="#E1F5FE" shape=octagon style=filled]
+	N6 [label="Energy Recovery from Non_Recyclables" color="#4FC3F7" fillcolor="#E1F5FE" shape=Mdiamond style=filled]
+	N7 [label="Deposit_Return Schemes" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N0 -> N1 [color="#4FC3F7" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=finances color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=optimizes color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=classifies color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=reuses color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_45.dot b/test/graphviz/scanned_hard/graphviz_45.dot
new file mode 100644
index 0000000000000000000000000000000000000000..57156ec8d19f89c12970ff72d7b9427f1a2244f1
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_45.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=BT
+	N0 [label="Biodiversity Conservation in Forests" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N1 [label="GIS Mapping for Forestry" color="#388E3C" fillcolor="#C8E6C9" shape=folder style=filled]
+	N2 [label="Climate Change Adaptation in Forests" color="#80DDEA" fillcolor="#D3F7F9" shape=oval style=filled]
+	N3 [label="Wood Product Manufacturing" color="#388E3C" fillcolor="#C8E6C9" shape=folder style=filled]
+	N4 [label=Silviculture color="#E57373" fillcolor="#FFEBEE" shape=octagon style=filled]
+	N5 [label="Timber Harvesting" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N6 [label="Carbon Sequestration Monitoring" color="#E57373" fillcolor="#FFEBEE" shape=Mdiamond style=filled]
+	N7 [label="Pest and Disease Control" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N8 [label="Illegal Logging Prevention" color="#388E3C" fillcolor="#C8E6C9" shape=octagon style=filled]
+	N9 [label="Forest Fire Management" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N10 [label="Watershed Protection" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N0 -> N1 [label=restricts color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=plants color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=irrigates color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=reports color="#E57373" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N7 -> N10 [color="#E57373" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N1 [label=constructs color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_45.txt b/test/graphviz/scanned_hard/graphviz_45.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a63c4448095baf6b9804d08efa168c180a0beb51
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_45.txt
@@ -0,0 +1,12 @@
+<Biodiversity Conservation in Forests, restricts, GIS Mapping for Forestry>
+<Carbon Sequestration Monitoring, connectedTo, Pest and Disease Control>
+<Climate Change Adaptation in Forests, constructs, GIS Mapping for Forestry>
+<Climate Change Adaptation in Forests, plants, Wood Product Manufacturing>
+<Forest Fire Management, connectedTo, Watershed Protection>
+<GIS Mapping for Forestry, connectedTo, Climate Change Adaptation in Forests>
+<Illegal Logging Prevention, connectedTo, Forest Fire Management>
+<Pest and Disease Control, connectedTo, Watershed Protection>
+<Pest and Disease Control, reports, Illegal Logging Prevention>
+<Silviculture, connectedTo, Timber Harvesting>
+<Timber Harvesting, irrigates, Carbon Sequestration Monitoring>
+<Wood Product Manufacturing, connectedTo, Silviculture>
diff --git a/test/graphviz/scanned_hard/graphviz_46.txt b/test/graphviz/scanned_hard/graphviz_46.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9796b27bca020c426abfe3f32604cdc911309e92
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_46.txt
@@ -0,0 +1,9 @@
+<Biosecurity Measures, monitors, Wildlife Rehabilitation>
+<Client Communication, connectedTo, Biosecurity Measures>
+<Dental Care, connectedTo, Veterinary Technology Training>
+<Microchipping, connectedTo, Parasite Control>
+<Parasite Control, shelters, Post_operative Care>
+<Post_operative Care, connectedTo, Dental Care>
+<Veterinary Technology Training, connectedTo, Veterinary Pathology>
+<Veterinary Technology Training, consults, Parasite Control>
+<Wildlife Rehabilitation, documents, Microchipping>
diff --git a/test/graphviz/scanned_hard/graphviz_47.dot b/test/graphviz/scanned_hard/graphviz_47.dot
new file mode 100644
index 0000000000000000000000000000000000000000..535577162c66fdfb49c9b5faa973728afd21abcc
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_47.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=BT
+	N0 [label="Parent_Teacher Conferences" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N1 [label="Nap Time Supervision" color="#FFB74D" fillcolor="#FFF3E0" shape=Mdiamond style=filled]
+	N2 [label="Child Psychology Application" color="#A2D0FF" fillcolor="#E8F0FF" shape=plaintext style=filled]
+	N3 [label="Field Trip Organization" color="#A2D0FF" fillcolor="#E8F0FF" shape=octagon style=filled]
+	N4 [label="Music and Movement Activities" color="#FFB74D" fillcolor="#FFF3E0" shape=box style=filled]
+	N5 [label="Curriculum Planning" color="#FFC085" fillcolor="#FFDAB9" shape=Mdiamond style=filled]
+	N6 [label="Nutritional Meal Preparation" color="#FFB74D" fillcolor="#FFF3E0" shape=box style=filled]
+	N7 [label="Outdoor Play Supervision" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N8 [label="Teacher_Child Ratio Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=plaintext style=filled]
+	N9 [label="Special Needs Accommodation" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N10 [label="Staff Training and Certification" color="#FFC085" fillcolor="#FFDAB9" shape=hexagon style=filled]
+	N11 [label="Daily Activity Reporting" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N0 -> N1 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=supervises color="#FFC085" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=creates color="#A2D0FF" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=facilitates color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=engages color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=nurtures color="#FFC085" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=complies color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [label=assesses color="#A2D0FF" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N1 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N3 [color="#FFB74D" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_47.txt b/test/graphviz/scanned_hard/graphviz_47.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ffa6bbac0c77bbb0f27ed85a97379b06b5514d13
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_47.txt
@@ -0,0 +1,13 @@
+<Child Psychology Application, creates, Field Trip Organization>
+<Curriculum Planning, engages, Nutritional Meal Preparation>
+<Field Trip Organization, facilitates, Music and Movement Activities>
+<Music and Movement Activities, connectedTo, Curriculum Planning>
+<Music and Movement Activities, connectedTo, Nap Time Supervision>
+<Nap Time Supervision, supervises, Child Psychology Application>
+<Nutritional Meal Preparation, nurtures, Outdoor Play Supervision>
+<Outdoor Play Supervision, connectedTo, Field Trip Organization>
+<Outdoor Play Supervision, connectedTo, Teacher_Child Ratio Management>
+<Parent_Teacher Conferences, connectedTo, Nap Time Supervision>
+<Special Needs Accommodation, assesses, Staff Training and Certification>
+<Staff Training and Certification, connectedTo, Daily Activity Reporting>
+<Teacher_Child Ratio Management, complies, Special Needs Accommodation>
diff --git a/test/graphviz/scanned_hard/graphviz_48.dot b/test/graphviz/scanned_hard/graphviz_48.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0670c5f1e3985cb19a346147912bcc728c1eaec8
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_48.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=LR
+	N0 [label=Companionship color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N1 [label="Rehabilitation Support" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N2 [label="Nursing Care" color="#61CAC3" fillcolor="#C2E8E6" shape=plaintext style=filled]
+	N3 [label="Medication Management" color="#00BCD4" fillcolor="#B2EBF2" shape=hexagon style=filled]
+	N4 [label="Long_Term Care Planning" color="#FFC2C2" fillcolor="#FFEBEB" shape=Mdiamond style=filled]
+	N5 [label="Cognitive Stimulation Activities" color="#FFC2C2" fillcolor="#FFEBEB" shape=folder style=filled]
+	N6 [label="Legal Aid Referrals" color="#FFC2C2" fillcolor="#FFEBEB" shape=plaintext style=filled]
+	N7 [label="Incontinence Care" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N0 -> N1 [label=assesses color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=reports color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=manages color="#61CAC3" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#61CAC3" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=supports color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N7 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_48.txt b/test/graphviz/scanned_hard/graphviz_48.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1191e043bd908090eaf3c5a384462b0ee07c9358
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_48.txt
@@ -0,0 +1,8 @@
+<Cognitive Stimulation Activities, connectedTo, Legal Aid Referrals>
+<Companionship, assesses, Rehabilitation Support>
+<Legal Aid Referrals, supports, Incontinence Care>
+<Long_Term Care Planning, manages, Cognitive Stimulation Activities>
+<Medication Management, reports, Long_Term Care Planning>
+<Nursing Care, connectedTo, Incontinence Care>
+<Nursing Care, connectedTo, Medication Management>
+<Rehabilitation Support, connectedTo, Nursing Care>
diff --git a/test/graphviz/scanned_hard/graphviz_49.dot b/test/graphviz/scanned_hard/graphviz_49.dot
new file mode 100644
index 0000000000000000000000000000000000000000..aaf5d958720e618b539562bf060605056148a27a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_49.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=TD
+	N0 [label="Hazard Identification" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	N1 [label="Climate Change Adaptation for Disasters" color="#CD8FF2" fillcolor="#ECCFF5" shape=hexagon style=filled]
+	N2 [label="Recovery Planning" color="#AED581" fillcolor="#F0F4C3" shape=folder style=filled]
+	N3 [label="Community Preparedness" color="#AED581" fillcolor="#F0F4C3" shape=parallelogram style=filled]
+	N4 [label="Emergency Drills and Exercises" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N5 [label="Damage Assessment" color="#8C9EFF" fillcolor="#D3D7EB" shape=box style=filled]
+	N6 [label="Early Recovery Actions" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N7 [label="Economic Recovery Initiatives" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N0 -> N1 [label=treats color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=responds color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=locates color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=secures color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=restores color="#8C9EFF" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N1 -> N4 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_49.txt b/test/graphviz/scanned_hard/graphviz_49.txt
new file mode 100644
index 0000000000000000000000000000000000000000..bf7de60d06e7d7512ec31b591464631ae9934f11
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_49.txt
@@ -0,0 +1,8 @@
+<Climate Change Adaptation for Disasters, connectedTo, Emergency Drills and Exercises>
+<Climate Change Adaptation for Disasters, connectedTo, Recovery Planning>
+<Community Preparedness, locates, Emergency Drills and Exercises>
+<Damage Assessment, restores, Early Recovery Actions>
+<Early Recovery Actions, connectedTo, Economic Recovery Initiatives>
+<Emergency Drills and Exercises, secures, Damage Assessment>
+<Hazard Identification, treats, Climate Change Adaptation for Disasters>
+<Recovery Planning, responds, Community Preparedness>
diff --git a/test/graphviz/scanned_hard/graphviz_50.txt b/test/graphviz/scanned_hard/graphviz_50.txt
new file mode 100644
index 0000000000000000000000000000000000000000..67f1de163c7e12ae1a7a7ad903e65f534676c7bb
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_50.txt
@@ -0,0 +1,10 @@
+<Basic Training, inspects, Equipment Maintenance>
+<Chaplain Services, executes, Specialized Training>
+<Equipment Maintenance, connectedTo, Crisis Management>
+<Joint Exercises, develops, Basic Training>
+<Naval Operations, connectedTo, Chaplain Services>
+<Specialized Training, connectedTo, Surveillance>
+<Specialized Training, reports, Crisis Management>
+<Specialized Training, supplies, Weapon Systems Development>
+<Surveillance, recruits, Weapon Systems Development>
+<Weapon Systems Development, connectedTo, Joint Exercises>
diff --git a/test/graphviz/scanned_hard/graphviz_52.dot b/test/graphviz/scanned_hard/graphviz_52.dot
new file mode 100644
index 0000000000000000000000000000000000000000..14b0e6e9e65904b436178eb947819c37f54ec57b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_52.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=BT
+	N0 [label="Voice Guidance Customization" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	N1 [label="Marine Charting" color="#81C784" fillcolor="#F1F8E9" shape=folder style=filled]
+	N2 [label="Aeronautical Charting" color="#DCE775" fillcolor="#FCFCE7" shape=diamond style=filled]
+	N3 [label="Offline Map Support" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N4 [label="Speed Calculation" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N5 [label="Topographic Mapping" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N6 [label=Geofencing color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N7 [label="Pedestrian Navigation" color="#DCE775" fillcolor="#FCFCE7" shape=Mdiamond style=filled]
+	N8 [label="Cycle Route Planning" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N9 [label="Satellite Navigation Systems" color="#DCE775" fillcolor="#FCFCE7" shape=octagon style=filled]
+	N10 [label="Map Display" color="#81C784" fillcolor="#F1F8E9" shape=diamond style=filled]
+	N11 [label="Historical Traffic Data Analysis" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N0 -> N1 [label=plans color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=monitors color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=detects color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=measures color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=orients color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N0 -> N6 [label=routes color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N7 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_52.txt b/test/graphviz/scanned_hard/graphviz_52.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e8e59a0e80fcd08527c237f5427abd4a46bd1d7e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_52.txt
@@ -0,0 +1,13 @@
+<Aeronautical Charting, connectedTo, Offline Map Support>
+<Cycle Route Planning, connectedTo, Satellite Navigation Systems>
+<Geofencing, detects, Pedestrian Navigation>
+<Map Display, connectedTo, Historical Traffic Data Analysis>
+<Marine Charting, connectedTo, Aeronautical Charting>
+<Offline Map Support, monitors, Speed Calculation>
+<Pedestrian Navigation, connectedTo, Historical Traffic Data Analysis>
+<Pedestrian Navigation, measures, Cycle Route Planning>
+<Satellite Navigation Systems, orients, Map Display>
+<Speed Calculation, connectedTo, Topographic Mapping>
+<Topographic Mapping, connectedTo, Geofencing>
+<Voice Guidance Customization, plans, Marine Charting>
+<Voice Guidance Customization, routes, Geofencing>
diff --git a/test/graphviz/scanned_hard/graphviz_53.dot b/test/graphviz/scanned_hard/graphviz_53.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ac29cd4c9f60ff4dabb3c80330ed6797184dcd81
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_53.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=BT
+	N0 [label="Sustainable 3D Printing Materials" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N1 [label="Construction 3D Printing" color="#DCE775" fillcolor="#FCFCE7" shape=oval style=filled]
+	N2 [label="Printer Setup" color="#DCE775" fillcolor="#FCFCE7" shape=folder style=filled]
+	N3 [label="Quality Control" color="#FFDA4E" fillcolor="#FFE88D" shape=hexagon style=filled]
+	N4 [label="3D Model Design" color="#FFDA4E" fillcolor="#FFE88D" shape=folder style=filled]
+	N5 [label="Aerospace Part Production" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N6 [label="Printing Process" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N7 [label="Additive Manufacturing" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N8 [label="Scaffolding for Tissue Engineering" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N9 [label="3D Printed Tooling" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N0 -> N1 [label=processes color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=troubleshoots color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=repairs color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=calibrates color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=monitors color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=optimizes color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=licenses color="#FFDA4E" dir=forward penwidth=1.5 style=dashed]
+	N0 -> N5 [color="#388E3C" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_53.txt b/test/graphviz/scanned_hard/graphviz_53.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6f8af0c61cc4ab85dc9d85eaf67db89836511b82
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_53.txt
@@ -0,0 +1,11 @@
+<3D Model Design, calibrates, Aerospace Part Production>
+<Additive Manufacturing, optimizes, Scaffolding for Tissue Engineering>
+<Aerospace Part Production, monitors, Printing Process>
+<Construction 3D Printing, connectedTo, Printer Setup>
+<Printer Setup, connectedTo, 3D Model Design>
+<Printer Setup, troubleshoots, Quality Control>
+<Printing Process, connectedTo, Additive Manufacturing>
+<Quality Control, repairs, 3D Model Design>
+<Scaffolding for Tissue Engineering, licenses, 3D Printed Tooling>
+<Sustainable 3D Printing Materials, connectedTo, Aerospace Part Production>
+<Sustainable 3D Printing Materials, processes, Construction 3D Printing>
diff --git a/test/graphviz/scanned_hard/graphviz_54.txt b/test/graphviz/scanned_hard/graphviz_54.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2d61581a83052bdfa9cd42cb31b39f99224988bb
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_54.txt
@@ -0,0 +1,11 @@
+<Carbon Nanotube Synthesis, controls, Nanofabrication Techniques>
+<Drug Delivery Systems, connectedTo, Spintronics>
+<Food Packaging Improvement, connectedTo, Spintronics>
+<Food Packaging Improvement, researches, Carbon Nanotube Synthesis>
+<Lab_on_a_Chip Devices, analyzes, Food Packaging Improvement>
+<Nanofabrication Techniques, connectedTo, Nanotoxicology>
+<Nanotoxicology, connectedTo, Public Perception of Nanotechnology>
+<Public Perception of Nanotechnology, connectedTo, Drug Delivery Systems>
+<Quantum Dots, functionalizes, Catalysis at Nanoscale>
+<Spintronics, connectedTo, Quantum Dots>
+<Spintronics, engineers, Drug Delivery Systems>
diff --git a/test/graphviz/scanned_hard/graphviz_56.txt b/test/graphviz/scanned_hard/graphviz_56.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9111d486eb1295f912f70880ec29aa16402ab9d9
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_56.txt
@@ -0,0 +1,10 @@
+<Environment Mapping, connectedTo, Remote Collaboration Tools>
+<Eye Tracking, connectedTo, Industrial Maintenance Support>
+<Eye Tracking, creates, Virtual Reality Game Development>
+<Headset Development, connectedTo, Industrial Maintenance Support>
+<Industrial Maintenance Support, connectedTo, Eye Tracking>
+<Neuro_VR Interfaces, connectedTo, Headset Development>
+<Performance Optimization, captures, User Experience Testing>
+<Performance Optimization, connectedTo, Eye Tracking>
+<User Experience Testing, analyzes, Environment Mapping>
+<Virtual Reality Game Development, audits, Performance Optimization>
diff --git a/test/graphviz/scanned_hard/graphviz_57.dot b/test/graphviz/scanned_hard/graphviz_57.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ad2a359c2546d3005f81c9545903f12286b938fe
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_57.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=TD
+	N0 [label="Bug Fixing" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N1 [label="Quality Assurance Testing" color="#FFC2C2" fillcolor="#FFEBEB" shape=diamond style=filled]
+	N2 [label="Character Design" color="#2196F3" fillcolor="#BBDEFB" shape=parallelogram style=filled]
+	N3 [label="Anti_Cheat Development" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N4 [label="Player Feedback Integration" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N5 [label="PC Game Development" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+	N6 [label="Asset Creation" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N7 [label=Localization color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+	N8 [label="Level Design" color="#2196F3" fillcolor="#BBDEFB" shape=oval style=filled]
+	N9 [label="Player Progression Systems" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N0 -> N1 [color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=leads color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=researches color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=designs color="#2196F3" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=renders color="#2196F3" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=develops color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=localizes color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+	N6 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N0 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_57.txt b/test/graphviz/scanned_hard/graphviz_57.txt
new file mode 100644
index 0000000000000000000000000000000000000000..52f21320f4b83da36f279838188a5cf4676a5364
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_57.txt
@@ -0,0 +1,11 @@
+<Anti_Cheat Development, researches, Player Feedback Integration>
+<Asset Creation, connectedTo, Quality Assurance Testing>
+<Asset Creation, develops, Localization>
+<Bug Fixing, connectedTo, Quality Assurance Testing>
+<Character Design, connectedTo, Anti_Cheat Development>
+<Level Design, localizes, Player Progression Systems>
+<Localization, connectedTo, Level Design>
+<PC Game Development, renders, Asset Creation>
+<Player Feedback Integration, designs, PC Game Development>
+<Quality Assurance Testing, connectedTo, Bug Fixing>
+<Quality Assurance Testing, leads, Character Design>
diff --git a/test/graphviz/scanned_hard/graphviz_58.txt b/test/graphviz/scanned_hard/graphviz_58.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ba3ee007bdab60ce6bc56633681f970046b4afd3
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_58.txt
@@ -0,0 +1,9 @@
+<A&R, connectedTo, Concert Promotion>
+<Beat Making, connectedTo, Sampling>
+<Concert Promotion, sings, Music Therapy>
+<Live Sound Engineering, manages, Music Education>
+<Lyric Writing, connectedTo, Live Sound Engineering>
+<Lyric Writing, connectedTo, Sampling>
+<Music Education, analyzes, Synthesizer Programming>
+<Music Therapy, connectedTo, Lyric Writing>
+<Sampling, engineers, A&R>
diff --git a/test/graphviz/scanned_hard/graphviz_59.dot b/test/graphviz/scanned_hard/graphviz_59.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ed8a8eec9d704c2a83d26bc97e7da35abe443c1f
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_59.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Budget Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N1 [label="Archiving and Preservation" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	N2 [label="Set Construction" color="#FFEB3B" fillcolor="#FFF9C4" shape=octagon style=filled]
+	N3 [label=Cinematography color="#FFEB3B" fillcolor="#FFF9C4" shape=octagon style=filled]
+	N4 [label=Directing color="#607D8B" fillcolor="#CFD8DC" shape=Mdiamond style=filled]
+	N5 [label="Costume Design" color="#CB9BE1" fillcolor="#F2E6F5" shape=oval style=filled]
+	N6 [label="Lighting Design" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N7 [label="Green Production Practices" color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+	N0 -> N1 [color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#CB9BE1" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#607D8B" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=manages color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=composes color="#FFEB3B" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=designs color="#CB9BE1" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N0 [label=coordinates color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_6.dot b/test/graphviz/scanned_hard/graphviz_6.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c88df9924e3aaa5b95f6be3b1548f19a2d227e8e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_6.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=BT
+	N0 [label="Luggage Handling" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	N1 [label="Driver Allocation" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N2 [label="Maintenance Check" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N3 [label="Train Dispatch" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N4 [label="Bus Stop Management" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N5 [label="Load Balancing" color="#FBC02D" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N6 [label="Ride_sharing Request" color="#FBC02D" fillcolor="#FFFDE7" shape=folder style=filled]
+	N7 [label="Public Transport Ticketing" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N8 [label="Vehicle Assignment" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N9 [label=Arrival color="#FFE69C" fillcolor="#FFF9D4" shape=folder style=filled]
+	N10 [label="Cargo Loading" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+	N0 -> N1 [color="#FFE69C" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=checks color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=alerts color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=secures color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label=maintains color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N4 [label=boards color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_60.dot b/test/graphviz/scanned_hard/graphviz_60.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e1b2d9352abc872e78f8542a4be072f94222de2e
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_60.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=RL
+	N0 [label="Content Repurposing" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N1 [label=Branding color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N2 [label="Search Engine Optimization" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N3 [label="E_book Writing" color="#6FE1D5" fillcolor="#C9EFEC" shape=diamond style=filled]
+	N4 [label="Distribution Planning" color="#6FE1D5" fillcolor="#C9EFEC" shape=octagon style=filled]
+	N5 [label="Content Management System Operation" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N6 [label="Interview Conduct" color="#6FE1D5" fillcolor="#C9EFEC" shape=box style=filled]
+	N7 [label="Drafting Content" color="#F06292" fillcolor="#FCE4EC" shape=folder style=filled]
+	N8 [label="Monetization Strategy" color="#6FE1D5" fillcolor="#C9EFEC" shape=oval style=filled]
+	N9 [label="Audience Analysis" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N10 [label="Podcast Production" color="#6FE1D5" fillcolor="#C9EFEC" shape=box style=filled]
+	N11 [label="Research and Outline" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N0 -> N1 [label=measures color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=films color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=promotes color="#F06292" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=records color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label=personalizes color="#000000" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#FF8A65" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#F06292" dir=forward penwidth=1.5 style=solid]
+	N10 -> N11 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N8 [label=distributes color="#FF8A65" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N11 [label=moderates color="#6FE1D5" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_60.txt b/test/graphviz/scanned_hard/graphviz_60.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ff3a33d286d610c257d8f393d92cee2a6e3fa8d2
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_60.txt
@@ -0,0 +1,13 @@
+<Audience Analysis, connectedTo, Podcast Production>
+<Branding, connectedTo, Search Engine Optimization>
+<Content Management System Operation, connectedTo, Interview Conduct>
+<Content Repurposing, measures, Branding>
+<Distribution Planning, promotes, Content Management System Operation>
+<Drafting Content, personalizes, Monetization Strategy>
+<E_book Writing, connectedTo, Distribution Planning>
+<E_book Writing, distributes, Monetization Strategy>
+<Interview Conduct, moderates, Research and Outline>
+<Interview Conduct, records, Drafting Content>
+<Monetization Strategy, connectedTo, Audience Analysis>
+<Podcast Production, connectedTo, Research and Outline>
+<Search Engine Optimization, films, E_book Writing>
diff --git a/test/graphviz/scanned_hard/graphviz_61.dot b/test/graphviz/scanned_hard/graphviz_61.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0becfe5d8f20f7c94b526235c8e5609f97e15eca
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_61.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=RL
+	N0 [label="Web Analytics" color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N1 [label="Sales Performance Analysis" color="#4285F4" fillcolor="#D0E0F8" shape=folder style=filled]
+	N2 [label="Data Visualization" color="#00BCD4" fillcolor="#B2EBF2" shape=ellipse style=filled]
+	N3 [label="Exploratory Data Analysis" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	N4 [label="Operational Efficiency Metrics" color="#4285F4" fillcolor="#D0E0F8" shape=parallelogram style=filled]
+	N5 [label="Sentiment Analysis" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+	N6 [label="Marketing Campaign Analysis" color="#00BCD4" fillcolor="#B2EBF2" shape=box style=filled]
+	N7 [label="A or B Testing Analysis" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N8 [label="Customer Analytics" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	N9 [label="Data Pipeline Development" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	N10 [label="Text Analytics" color="#00BCD4" fillcolor="#B2EBF2" shape=ellipse style=filled]
+	N0 -> N1 [label=transforms color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=dashboards color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=pipelines color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=tracks color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=prepares color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=optimizes color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=implements color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N7 -> N4 [color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N0 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_61.txt b/test/graphviz/scanned_hard/graphviz_61.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c99796ca4fb1ecc39a6e379621902adf018a5c08
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_61.txt
@@ -0,0 +1,12 @@
+<A or B Testing Analysis, connectedTo, Operational Efficiency Metrics>
+<A or B Testing Analysis, optimizes, Customer Analytics>
+<Customer Analytics, implements, Data Pipeline Development>
+<Data Pipeline Development, connectedTo, Text Analytics>
+<Data Visualization, connectedTo, Exploratory Data Analysis>
+<Exploratory Data Analysis, connectedTo, Operational Efficiency Metrics>
+<Marketing Campaign Analysis, prepares, A or B Testing Analysis>
+<Operational Efficiency Metrics, connectedTo, Web Analytics>
+<Operational Efficiency Metrics, pipelines, Sentiment Analysis>
+<Sales Performance Analysis, dashboards, Data Visualization>
+<Sentiment Analysis, tracks, Marketing Campaign Analysis>
+<Web Analytics, transforms, Sales Performance Analysis>
diff --git a/test/graphviz/scanned_hard/graphviz_62.dot b/test/graphviz/scanned_hard/graphviz_62.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ee4914af7ba86329d3b8a015b356880d2937d63d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_62.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Query Optimization" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N1 [label="Data Mart Design" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+	N2 [label="Strategic Planning Support" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N3 [label="Data Governance Policies" color="#90A4AE" fillcolor="#ECEFF1" shape=parallelogram style=filled]
+	N4 [label="Competitive Analysis" color="#90A4AE" fillcolor="#ECEFF1" shape=parallelogram style=filled]
+	N5 [label="Data Modeling" color="#FBC02D" fillcolor="#FFFDE7" shape=oval style=filled]
+	N6 [label="Prescriptive Analytics Implementation" color="#80DDEA" fillcolor="#D3F7F9" shape=folder style=filled]
+	N7 [label="KPI Definition" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N0 -> N1 [label=presents color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=ETLs color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=secures color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#FBC02D" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=OLAPs color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N0 -> N7 [color="#FBC02D" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_62.txt b/test/graphviz/scanned_hard/graphviz_62.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2c0b41e64904a6544c023529adf72af922fbc136
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_62.txt
@@ -0,0 +1,8 @@
+<Competitive Analysis, connectedTo, Data Modeling>
+<Data Governance Policies, secures, Competitive Analysis>
+<Data Mart Design, ETLs, Strategic Planning Support>
+<Data Modeling, OLAPs, Prescriptive Analytics Implementation>
+<Prescriptive Analytics Implementation, connectedTo, KPI Definition>
+<Query Optimization, connectedTo, KPI Definition>
+<Query Optimization, presents, Data Mart Design>
+<Strategic Planning Support, connectedTo, Data Governance Policies>
diff --git a/test/graphviz/scanned_hard/graphviz_63.txt b/test/graphviz/scanned_hard/graphviz_63.txt
new file mode 100644
index 0000000000000000000000000000000000000000..055d779b0317dc260988cb1ce3358306690f98c4
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_63.txt
@@ -0,0 +1,11 @@
+<Campaign Performance Tracking, manages social media, Marketing Budget Allocation>
+<Competitive Analysis, connectedTo, Customer Segmentation>
+<Competitive Analysis, connectedTo, Partnership Marketing>
+<Content Marketing, organizes events, Campaign Performance Tracking>
+<Customer Segmentation, optimizes SEO, Website Design and Optimization>
+<Event Marketing, enhances experiences, Content Marketing>
+<Event Marketing, tracks performance, Brand Reputation Management>
+<Marketing Analytics, connectedTo, Brand Reputation Management>
+<Marketing Budget Allocation, connectedTo, Customer Segmentation>
+<Partnership Marketing, connectedTo, Event Marketing>
+<Website Design and Optimization, influences, Marketing Analytics>
diff --git a/test/graphviz/scanned_hard/graphviz_64.txt b/test/graphviz/scanned_hard/graphviz_64.txt
new file mode 100644
index 0000000000000000000000000000000000000000..141dcd410f3d634753a08e118f2511fdf2468c44
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_64.txt
@@ -0,0 +1,9 @@
+<Audience Targeting, connectedTo, Social Media Ads>
+<Campaign Planning, native ads, Fraud Detection in Ads>
+<Competitor Ad Analysis, plans campaigns, Campaign Planning>
+<Demographic Targeting, creates ads, Performance Tracking>
+<Fraud Detection in Ads, connectedTo, Campaign Planning>
+<Fraud Detection in Ads, programmatic ads, Audience Targeting>
+<Native Advertising, ensures compliance, Ad Network Management>
+<Performance Tracking, connectedTo, Competitor Ad Analysis>
+<Social Media Ads, connectedTo, Native Advertising>
diff --git a/test/graphviz/scanned_hard/graphviz_66.dot b/test/graphviz/scanned_hard/graphviz_66.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ed30adb267e070ef02bff88d4691b6c2b414d91b
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_66.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="KYC or AML Procedures" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N1 [label="Web3 Integration" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N2 [label="Interoperability Solutions" color="#E0E0E0" fillcolor="#EBEBEB" shape=parallelogram style=filled]
+	N3 [label=Staking color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+	N4 [label="Cross_chain Swaps" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N5 [label="Tax Reporting for Crypto" color="#FFF9AE" fillcolor="#FFFCE6" shape=octagon style=filled]
+	N6 [label="Portfolio Management" color="#DCE775" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N7 [label="Token Generation Event" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N0 -> N1 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#FFF9AE" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="custodies assets" color="#DCE775" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label="enables swaps" color="#E0E0E0" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#DCE775" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label="creates NFTs" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N3 [label="analyzes markets" color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_68.dot b/test/graphviz/scanned_hard/graphviz_68.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5d239d2bd7ef405d921e485e99674b01d38ea112
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_68.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=BT
+	N0 [label="API Development for IoT" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N1 [label="Industrial IoT" color="#AF56A6" fillcolor="#DDCEDD" shape=diamond style=filled]
+	N2 [label="Gateway Development" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N3 [label="Security Implementation" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+	N4 [label="Data Processing at Edge" color="#90A4AE" fillcolor="#ECEFF1" shape=hexagon style=filled]
+	N5 [label="Energy Management Systems" color="#90A4AE" fillcolor="#ECEFF1" shape=folder style=filled]
+	N6 [label="Smart Manufacturing" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N7 [label="Data Privacy in IoT" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N0 -> N1 [label="performs OTAs" color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label="complies with regulations" color="#AF56A6" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#AF56A6" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="manages power" color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label="processes streams" color="#AF56A6" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label="manufactures devices" color="#90A4AE" dir=forward penwidth=1.5 style=dashed]
+	N0 -> N3 [label="deploys gateways" color="#FF5722" dir=forward penwidth=1.5 style=solid]
+	N6 -> N1 [color="#AF56A6" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_69.txt b/test/graphviz/scanned_hard/graphviz_69.txt
new file mode 100644
index 0000000000000000000000000000000000000000..80d13562d177c5bf8047e026b6c868e563e02e37
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_69.txt
@@ -0,0 +1,8 @@
+<Compliance and Governance at Edge, optimizes telecoms, Latency Reduction>
+<Containerization at Edge, connectedTo, Compliance and Governance at Edge>
+<Edge Application Development, connects endpoints, Remote Device Management>
+<Edge Computing Hardware Selection, secures data, Edge Application Development>
+<Latency Reduction, connectedTo, Data Filtering at Edge>
+<Real_time Analytics at Edge, manages APIs, Edge Computing Hardware Selection>
+<Remote Device Management, connectedTo, Containerization at Edge>
+<Remote Device Management, manages fleet, Latency Reduction>
diff --git a/test/graphviz/scanned_hard/graphviz_7.dot b/test/graphviz/scanned_hard/graphviz_7.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e2592d00b6aa90c1368ebbd371aa42453a4a9b76
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_7.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=BT
+	N0 [label="Grid Modernization" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N1 [label="Sensor Reading" color="#FFF8A6" fillcolor="#FFFDE0" shape=folder style=filled]
+	N2 [label="Load Distribution" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N3 [label="Substation Automation" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N4 [label="Nuclear Reactor Control" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N5 [label="Transmission Line Maintenance" color="#90A4AE" fillcolor="#ECEFF1" shape=plaintext style=filled]
+	N6 [label="Transformer Station" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N7 [label="Peak Shaving" color="#00BCD4" fillcolor="#E0F7FA" shape=parallelogram style=filled]
+	N8 [label="Demand Forecast" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=plans color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=isolates color="#FFF8A6" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#90A4AE" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=audits color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#FFF8A6" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=balances color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N0 -> N2 [label=alerts color="#FFF8A6" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_72.dot b/test/graphviz/scanned_hard/graphviz_72.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fde767dda9451708703b26b579deabd4667ef676
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_72.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=RL
+	N0 [label="Configuration Management" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N1 [label="Post_Mortem Analysis" color="#6EB76D" fillcolor="#E9F7E8" shape=diamond style=filled]
+	N2 [label="Collaboration Tools" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	N3 [label="Dynamic Application Security Testing" color="#9C27B0" fillcolor="#E1BEE7" shape=Mdiamond style=filled]
+	N4 [label="Infrastructure as Code" color="#9C27B0" fillcolor="#E1BEE7" shape=plaintext style=filled]
+	N5 [label="Continuous Delivery" color="#9C27B0" fillcolor="#E1BEE7" shape=plaintext style=filled]
+	N6 [label="Environment Management" color="#FFCC80" fillcolor="#FFF0CC" shape=oval style=filled]
+	N7 [label="Automated Rollbacks" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N8 [label=GitOps color="#9C27B0" fillcolor="#E1BEE7" shape=diamond style=filled]
+	N9 [label="Chaos Engineering" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N0 -> N1 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label="manages versions" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label="deploys canaries" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label="integrates security" color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label="automates tests" color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N0 -> N4 [label="performs rollbacks" color="#9C27B0" dir=forward penwidth=1.5 style=solid]
+	N5 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_74.txt b/test/graphviz/scanned_hard/graphviz_74.txt
new file mode 100644
index 0000000000000000000000000000000000000000..399cfe497453fb6d0cb023146005327efda2ab82
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_74.txt
@@ -0,0 +1,8 @@
+<Cost Optimization, lays out PCBs, Microcontroller Programming>
+<Microcontroller Programming, connectedTo, Testing and Validation>
+<PCB Layout, optimizes costs, Supply Chain Management for Components>
+<RF Circuit Design, analyzes failures, Reverse Engineering>
+<Reverse Engineering, connectedTo, Cost Optimization>
+<Supply Chain Management for Components, connectedTo, Reverse Engineering>
+<Supply Chain Management for Components, manages cables, Troubleshooting and Debugging>
+<Testing and Validation, troubleshoots issues, PCB Layout>
diff --git a/test/graphviz/scanned_hard/graphviz_75.dot b/test/graphviz/scanned_hard/graphviz_75.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8bf36d9b85aa07b4f624d86273b6f1b43d6ec30c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_75.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=RL
+	N0 [label="User Experience Design" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N1 [label="Camera Integration" color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+	N2 [label="Offline Mode Development" color="#81C784" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N3 [label="Cloud Backend for Mobile" color="#BA68C8" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N4 [label="Security Implementation" color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+	N5 [label="Wearable Device Integration" color="#AB47BC" fillcolor="#F3E5F5" shape=oval style=filled]
+	N6 [label="IoT Device Control via App" color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+	N7 [label="Concept Development" color="#BA68C8" fillcolor="#F3E5F5" shape=plaintext style=filled]
+	N8 [label="Testing and Debugging" color="#BA68C8" fillcolor="#F3E5F5" shape=diamond style=filled]
+	N9 [label="Ad Monetization" color="#BA68C8" fillcolor="#F3E5F5" shape=octagon style=filled]
+	N10 [label="Deep Linking" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N0 -> N1 [label="implements biometrics" color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label="deploys to stores" color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label="uses cloud services" color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [label="creates wireframes" color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [color="#BA68C8" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N0 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N3 -> N0 [label="manages databases" color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_75.txt b/test/graphviz/scanned_hard/graphviz_75.txt
new file mode 100644
index 0000000000000000000000000000000000000000..191588fc8eece9c16fc1f81db6fba6889f1d20c3
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_75.txt
@@ -0,0 +1,12 @@
+<Ad Monetization, connectedTo, Deep Linking>
+<Camera Integration, connectedTo, User Experience Design>
+<Camera Integration, deploys to stores, Offline Mode Development>
+<Cloud Backend for Mobile, connectedTo, Security Implementation>
+<Cloud Backend for Mobile, manages databases, User Experience Design>
+<Concept Development, connectedTo, Testing and Debugging>
+<IoT Device Control via App, connectedTo, Concept Development>
+<Offline Mode Development, connectedTo, Cloud Backend for Mobile>
+<Security Implementation, connectedTo, Wearable Device Integration>
+<Testing and Debugging, creates wireframes, Ad Monetization>
+<User Experience Design, implements biometrics, Camera Integration>
+<Wearable Device Integration, uses cloud services, IoT Device Control via App>
diff --git a/test/graphviz/scanned_hard/graphviz_76.dot b/test/graphviz/scanned_hard/graphviz_76.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e46879c682bf4a22630e9ba6c0db09a7b79a7ea1
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_76.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=RL
+	N0 [label="User_Generated Content Curation" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N1 [label="Reporting and Optimization" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N2 [label="Follower Growth Monitoring" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N3 [label="Influencer Collaboration" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N4 [label="Partnership Management on Social" color="#FFE69C" fillcolor="#FFF9D4" shape=parallelogram style=filled]
+	N5 [label="Social Media Audits" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N6 [label="Personal Branding on Social Media" color="#FFE69C" fillcolor="#FFF9D4" shape=octagon style=filled]
+	N7 [label="Content Strategy" color="#B8C0F5" fillcolor="#ECF0FD" shape=plaintext style=filled]
+	N8 [label="Social Selling" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N9 [label="Content Moderation" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N10 [label="Group Management" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N0 -> N1 [label="builds reputation" color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label="curates UGC" color="#FFE69C" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="analyzes engagement" color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label="understands algorithms" color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label="runs polls" color="#B8C0F5" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label="selects platforms" color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#FF9800" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N5 [label="drives sales" color="#B8C0F5" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_77.dot b/test/graphviz/scanned_hard/graphviz_77.dot
new file mode 100644
index 0000000000000000000000000000000000000000..93e6baefa3bc6f074f23788a64e5c702d7052b3d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_77.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=TD
+	N0 [label="Image Search" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N1 [label="Technical SEO" color="#64B5F6" fillcolor="#E3F2FD" shape=folder style=filled]
+	N2 [label="On_Page SEO" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N3 [label="Search Result Display" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	N4 [label="Ranking Algorithms" color="#FFF9AE" fillcolor="#FFFCE6" shape=hexagon style=filled]
+	N5 [label="Site Architecture Optimization" color="#FFF176" fillcolor="#FFFDE7" shape=plaintext style=filled]
+	N6 [label="Local SEO" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N7 [label="Google My Business Management" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N0 -> N1 [label="manages penalties" color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label="optimizes UX" color="#FFF9AE" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label="handles voice search" color="#FFF176" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label="optimizes keywords" color="#000000" dir=forward penwidth=1.5 style=solid]
+	N1 -> N3 [label="optimizes for mobile" color="#000000" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_78.dot b/test/graphviz/scanned_hard/graphviz_78.dot
new file mode 100644
index 0000000000000000000000000000000000000000..935fe736e77e1613e0818ae272c566d20e3b7ca9
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_78.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=BT
+	N0 [label="Identity Threat Detection and Response" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	N1 [label="Digital Wallets for Identity" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	N2 [label="Digital Signatures" color="#C0CA33" fillcolor="#F9FBE7" shape=box style=filled]
+	N3 [label="Identity as a Service" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N4 [label=Authorization color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	N5 [label="Fraud Detection in Identity" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N6 [label="Identity Proofing" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N7 [label="Portable Identities" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	N8 [label="Credential Management" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	N9 [label="Adaptive Authentication" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N10 [label="Access Governance" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N11 [label="Federated Identity Management" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N0 -> N1 [label="issues verifiable credentials" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label="ensures compliance" color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label="encrypts data" color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label="uses biometrics" color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label="implements DIDs" color="#FFC107" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [label="manages CIAM" color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N9 [color="#C0CA33" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [label="revokes access" color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N10 -> N11 [label="detects fraud" color="#FFCC7A" dir=forward penwidth=1.5 style=solid]
+	N11 -> N6 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N1 [color="#FFCC7A" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_78.txt b/test/graphviz/scanned_hard/graphviz_78.txt
new file mode 100644
index 0000000000000000000000000000000000000000..630d7dd7d835a8da4d636297c74f1a74b53f26b3
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_78.txt
@@ -0,0 +1,13 @@
+<Access Governance, detects fraud, Federated Identity Management>
+<Adaptive Authentication, revokes access, Access Governance>
+<Authorization, uses biometrics, Fraud Detection in Identity>
+<Credential Management, connectedTo, Adaptive Authentication>
+<Digital Signatures, ensures compliance, Identity as a Service>
+<Digital Wallets for Identity, connectedTo, Digital Signatures>
+<Federated Identity Management, connectedTo, Identity Proofing>
+<Fraud Detection in Identity, connectedTo, Digital Wallets for Identity>
+<Fraud Detection in Identity, connectedTo, Identity Proofing>
+<Identity Proofing, implements DIDs, Portable Identities>
+<Identity Threat Detection and Response, issues verifiable credentials, Digital Wallets for Identity>
+<Identity as a Service, encrypts data, Authorization>
+<Portable Identities, manages CIAM, Credential Management>
diff --git a/test/graphviz/scanned_hard/graphviz_79.dot b/test/graphviz/scanned_hard/graphviz_79.dot
new file mode 100644
index 0000000000000000000000000000000000000000..be7c407cfc3371aec96b3128c289191d88a9cb1a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_79.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=TD
+	N0 [label="Parent or Guardian Communication" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	N1 [label="Virtual Classroom Facilitation" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N2 [label="Language Learning Platforms" color="#94C0C0" fillcolor="#CADEDE" shape=hexagon style=filled]
+	N3 [label="Micro_credential Programs" color="#F44336" fillcolor="#FFCDD2" shape=oval style=filled]
+	N4 [label="Digital Badges" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	N5 [label="Course Evaluation" color="#6EB76D" fillcolor="#E9F7E8" shape=hexagon style=filled]
+	N6 [label="Collaborative Projects" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N7 [label="Test Preparation Courses" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N0 -> N1 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label="issues certificates" color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label="manages student info" color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label="hosts MOOCs" color="#F44336" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [color="#F44336" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label="provides formative assessment" color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N2 -> N0 [color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N0 -> N3 [label="develops educational apps" color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_8.dot b/test/graphviz/scanned_hard/graphviz_8.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e7b47ea192ba30ccea43593c32c2e36a7e563715
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_8.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=RL
+	N0 [label="Court Order Execution" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N1 [label="Jury Selection" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N2 [label="Intel Property Licensing" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N3 [label="Due Diligence" color="#80DDEA" fillcolor="#D3F7F9" shape=plaintext style=filled]
+	N4 [label="Plea Bargain" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	N5 [label="Trademark Registration" color="#80DDEA" fillcolor="#D3F7F9" shape=diamond style=filled]
+	N6 [label="Trial Session" color="#80DDEA" fillcolor="#D3F7F9" shape=diamond style=filled]
+	N7 [label="Evidence Collection" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N8 [label="Child Custody" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N9 [label="Amicus Brief Submission" color="#FFA726" fillcolor="#FFF3E0" shape=diamond style=filled]
+	N10 [label="Corporate Formation" color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N0 -> N1 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#673AB7" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=summarizes color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#80DDEA" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=analyzes color="#FFA726" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=mediates color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=protects color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=audits color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=settles color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N3 [label=interviews color="#FFA726" dir=forward penwidth=1.5 style=solid]
+	N7 -> N5 [label=negotiates color="#673AB7" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_82.dot b/test/graphviz/scanned_hard/graphviz_82.dot
new file mode 100644
index 0000000000000000000000000000000000000000..95dbe5add444de651c17cf9b9e30ec5f147758d1
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_82.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=BT
+	N0 [label="Business Language Training" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N1 [label="Grammar Practice" color="#00BCD4" fillcolor="#E0F7FA" shape=diamond style=filled]
+	N2 [label="Speaking Practice" color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+	N3 [label="Vocabulary Acquisition" color="#00BCD4" fillcolor="#E0F7FA" shape=oval style=filled]
+	N4 [label="Travel Language Essentials" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N5 [label="Memory Retention Techniques" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N6 [label="Language for Specific Purposes" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N7 [label="AI_Powered Language Tutors" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N8 [label="Instructor_Led Classes" color="#4DB6AC" fillcolor="#E0F2F1" shape=box style=filled]
+	N9 [label="Listening Comprehension" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N0 -> N1 [label=automates color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=adapts color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=transcribes color="#00BCD4" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=tests color="#73C6BC" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#00BCD4" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=facilitates color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N8 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N2 [label=memorizes color="#73C6BC" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_82.txt b/test/graphviz/scanned_hard/graphviz_82.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7d8c342e5ca0d2451d2788114ca96e7a8c07c058
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_82.txt
@@ -0,0 +1,11 @@
+<AI_Powered Language Tutors, connectedTo, Instructor_Led Classes>
+<Business Language Training, automates, Grammar Practice>
+<Grammar Practice, adapts, Speaking Practice>
+<Instructor_Led Classes, connectedTo, Language for Specific Purposes>
+<Instructor_Led Classes, facilitates, Listening Comprehension>
+<Language for Specific Purposes, tests, AI_Powered Language Tutors>
+<Memory Retention Techniques, connectedTo, Language for Specific Purposes>
+<Memory Retention Techniques, memorizes, Speaking Practice>
+<Speaking Practice, transcribes, Vocabulary Acquisition>
+<Travel Language Essentials, connectedTo, Memory Retention Techniques>
+<Vocabulary Acquisition, connectedTo, Travel Language Essentials>
diff --git a/test/graphviz/scanned_hard/graphviz_83.dot b/test/graphviz/scanned_hard/graphviz_83.dot
new file mode 100644
index 0000000000000000000000000000000000000000..10be82b4dafa73fcc3c461d7727b4eb4ff7e5937
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_83.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=BT
+	N0 [label="Group Therapy" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N1 [label="Eating Disorder Treatment" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	N2 [label="Substance Abuse Counseling" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N3 [label="Crisis Intervention" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+	N4 [label="Stress Reduction Techniques" color="#4285F4" fillcolor="#D0E0F8" shape=parallelogram style=filled]
+	N5 [label="Bipolar Disorder Management" color="#D2D2D2" fillcolor="#F0F0F0" shape=box style=filled]
+	N6 [label="Dialectical Behavior Therapy" color="#A188D0" fillcolor="#DACBE3" shape=parallelogram style=filled]
+	N7 [label="Counseling Services" color="#4285F4" fillcolor="#D0E0F8" shape=box style=filled]
+	N8 [label="Workplace Mental Health Programs" color="#D2D2D2" fillcolor="#F0F0F0" shape=Mdiamond style=filled]
+	N9 [label="Inpatient Treatment Coordination" color="#4285F4" fillcolor="#D0E0F8" shape=Mdiamond style=filled]
+	N10 [label="Cognitive Behavioral Therapy" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N0 -> N1 [label=licenses color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=rehabilitates color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=advises color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#4285F4" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#4285F4" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=consults color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N9 -> N10 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N10 -> N9 [label=treats color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_83.txt b/test/graphviz/scanned_hard/graphviz_83.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f93e4e3320939f8104f31d6f46d8dc98183391ed
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_83.txt
@@ -0,0 +1,11 @@
+<Bipolar Disorder Management, connectedTo, Dialectical Behavior Therapy>
+<Cognitive Behavioral Therapy, treats, Inpatient Treatment Coordination>
+<Counseling Services, connectedTo, Workplace Mental Health Programs>
+<Crisis Intervention, connectedTo, Stress Reduction Techniques>
+<Dialectical Behavior Therapy, consults, Counseling Services>
+<Eating Disorder Treatment, rehabilitates, Substance Abuse Counseling>
+<Group Therapy, licenses, Eating Disorder Treatment>
+<Inpatient Treatment Coordination, connectedTo, Cognitive Behavioral Therapy>
+<Stress Reduction Techniques, connectedTo, Bipolar Disorder Management>
+<Substance Abuse Counseling, advises, Crisis Intervention>
+<Workplace Mental Health Programs, connectedTo, Inpatient Treatment Coordination>
diff --git a/test/graphviz/scanned_hard/graphviz_84.dot b/test/graphviz/scanned_hard/graphviz_84.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b31c69a33561e20201e12f8828079ea9c1fd90bd
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_84.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Hydration Planning" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	N1 [label="Food Fortification Strategies" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N2 [label="Genetic Nutrition Counseling" color="#FFC107" fillcolor="#FFECB3" shape=plaintext style=filled]
+	N3 [label="Meal Planning" color="#80DDEA" fillcolor="#D3F7F9" shape=octagon style=filled]
+	N4 [label="Food Label Interpretation" color="#FFC2C2" fillcolor="#FFEBEB" shape=hexagon style=filled]
+	N5 [label="Food Waste Reduction" color="#FFC107" fillcolor="#FFECB3" shape=parallelogram style=filled]
+	N6 [label="Dietary Assessment" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N7 [label="Inflammation and Diet" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	N0 -> N1 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=plans color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=customizes color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=regulates color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=prepares color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [color="#FFC107" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N4 [label=calculates color="#80DDEA" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_86.dot b/test/graphviz/scanned_hard/graphviz_86.dot
new file mode 100644
index 0000000000000000000000000000000000000000..122bba70e8498db2a1cd83cfcd2b63a0e3cfaaaf
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_86.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=RL
+	N0 [label="Spiritual Exploration" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N1 [label="Digital Detox" color="#388E3C" fillcolor="#F1F8E9" shape=box style=filled]
+	N2 [label="Environmental Wellness" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N3 [label="Employee Wellness Programs" color="#388E3C" fillcolor="#F1F8E9" shape=box style=filled]
+	N4 [label="Aromatherapy Usage" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N5 [label="Detox Programs" color="#AABEC6" fillcolor="#E0E6E9" shape=Mdiamond style=filled]
+	N6 [label="Massage Therapy" color="#AABEC6" fillcolor="#E0E6E9" shape=plaintext style=filled]
+	N7 [label="Nutrition Guidance" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N8 [label="Wellness Retreat Planning" color="#388E3C" fillcolor="#F1F8E9" shape=hexagon style=filled]
+	N9 [label="Health Coaching" color="#6EB76D" fillcolor="#E9F7E8" shape=Mdiamond style=filled]
+	N10 [label=Hydrotherapy color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N0 -> N1 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=protects color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=meditates color="#6EB76D" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=coaches color="#6EB76D" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=complies color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [color="#388E3C" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N9 -> N10 [label=promotes color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+	N3 -> N1 [color="#000000" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_86.txt b/test/graphviz/scanned_hard/graphviz_86.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7f6f4a7d96a3d88f96362b3e8976aaaf00bf291c
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_86.txt
@@ -0,0 +1,11 @@
+<Aromatherapy Usage, coaches, Detox Programs>
+<Detox Programs, connectedTo, Massage Therapy>
+<Digital Detox, protects, Environmental Wellness>
+<Employee Wellness Programs, connectedTo, Aromatherapy Usage>
+<Employee Wellness Programs, connectedTo, Digital Detox>
+<Environmental Wellness, meditates, Employee Wellness Programs>
+<Health Coaching, promotes, Hydrotherapy>
+<Massage Therapy, complies, Nutrition Guidance>
+<Nutrition Guidance, connectedTo, Wellness Retreat Planning>
+<Spiritual Exploration, connectedTo, Digital Detox>
+<Wellness Retreat Planning, connectedTo, Health Coaching>
diff --git a/test/graphviz/scanned_hard/graphviz_9.dot b/test/graphviz/scanned_hard/graphviz_9.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1c593744caef63c1a4ce78c1cf250420b6f25242
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_9.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=RL
+	N0 [label="Last_mile Dispatch" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N1 [label="Vehicle Loading" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N2 [label="Inventory Sync" color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+	N3 [label="Carrier Selection" color="#4FC3F7" fillcolor="#E1F5FE" shape=oval style=filled]
+	N4 [label="Hub Transfer" color="#AB47BC" fillcolor="#F3E5F5" shape=oval style=filled]
+	N5 [label="Customs Clearance" color="#9575CD" fillcolor="#EDE7F6" shape=diamond style=filled]
+	N6 [label="Pickup Request" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N7 [label="Warehouse Entry" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N8 [label="Container Loading" color="#9575CD" fillcolor="#EDE7F6" shape=parallelogram style=filled]
+	N9 [label="Ocean Freight Management" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N0 -> N1 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [color="#9575CD" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=loads color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#4FC3F7" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=delivers color="#AB47BC" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=sorts color="#9575CD" dir=forward penwidth=1.5 style=solid]
+	N0 -> N6 [label=secures color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N9 [label=analyzes color="#AB47BC" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_90.dot b/test/graphviz/scanned_hard/graphviz_90.dot
new file mode 100644
index 0000000000000000000000000000000000000000..29ad5f5f78f0bb0f00919a3345f2bfdad751345d
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_90.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=TD
+	N0 [label="Vehicle_to_Vehicle Communication" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N1 [label="Software Development" color="#4CAF50" fillcolor="#C8E6C9" shape=diamond style=filled]
+	N2 [label="Accident Reconstruction for AVs" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N3 [label="Sensor Integration" color="#D2D2D2" fillcolor="#F0F0F0" shape=octagon style=filled]
+	N4 [label="Charging Infrastructure" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N5 [label="Remote Operation Capability" color="#4CAF50" fillcolor="#C8E6C9" shape=octagon style=filled]
+	N6 [label="Battery Management for EVs" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	N7 [label="Simulation Environment Development" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N8 [label="Fail_Safe Systems" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	N9 [label="Data Collection and Annotation" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N0 -> N1 [label=diagnoses color="#4CAF50" dir=forward penwidth=1.5 style=dashed]
+	N1 -> N2 [label=controls color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=certifies color="#D2D2D2" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=upgrades color="#D2D2D2" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [label=manufactures color="#FF9800" dir=forward penwidth=1.5 style=solid]
+	N6 -> N2 [color="#FF9800" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_92.txt b/test/graphviz/scanned_hard/graphviz_92.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5f30735f7fa0b4831cc3e8b0f855e1e374798b59
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_92.txt
@@ -0,0 +1,9 @@
+<Automated Parking Garages, displays, Billing and Reconciliation>
+<Billing and Reconciliation, connectedTo, Data Analytics for Parking Usage>
+<Data Analytics for Parking Usage, manages, License Plate Recognition>
+<Integration with Navigation Apps, connectedTo, Space Detection>
+<License Plate Recognition, processes, Valet Parking Automation>
+<Space Detection, sells, Automated Parking Garages>
+<User Experience Design for Apps, certifies, License Plate Recognition>
+<Valet Parking Automation, connectedTo, Automated Parking Garages>
+<Valet Parking Automation, connectedTo, User Experience Design for Apps>
diff --git a/test/graphviz/scanned_hard/graphviz_93.dot b/test/graphviz/scanned_hard/graphviz_93.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6b2be5e90e19ff93595f1d2b6445e2d75b71cd73
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_93.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=RL
+	N0 [label="Public Transport Ticketing" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+	N1 [label="Mobile Ticketing" color="#AED581" fillcolor="#F0F4C3" shape=hexagon style=filled]
+	N2 [label="Museum Ticketing" color="#6FE1D5" fillcolor="#C9EFEC" shape=hexagon style=filled]
+	N3 [label="Audience Segmentation" color="#6FE1D5" fillcolor="#C9EFEC" shape=Mdiamond style=filled]
+	N4 [label="Pricing Configuration" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N5 [label="Post_Event Feedback Collection" color="#AED581" fillcolor="#F0F4C3" shape=folder style=filled]
+	N6 [label="Airline Ticketing" color="#6FE1D5" fillcolor="#C9EFEC" shape=box style=filled]
+	N7 [label="Subscription or Season Pass Management" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N0 -> N1 [label=transfers color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [label=payments color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=processes color="#AED581" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=cancels color="#AABEC6" dir=forward penwidth=1.5 style=dashed]
+	N0 -> N7 [label=advertises color="#6FE1D5" dir=forward penwidth=1.5 style=solid]
+	N3 -> N1 [color="#AABEC6" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_93.txt b/test/graphviz/scanned_hard/graphviz_93.txt
new file mode 100644
index 0000000000000000000000000000000000000000..425964716affd26053505ae83b0b85d1333120d8
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_93.txt
@@ -0,0 +1,9 @@
+<Airline Ticketing, cancels, Subscription or Season Pass Management>
+<Audience Segmentation, connectedTo, Mobile Ticketing>
+<Audience Segmentation, connectedTo, Pricing Configuration>
+<Mobile Ticketing, connectedTo, Museum Ticketing>
+<Museum Ticketing, connectedTo, Audience Segmentation>
+<Post_Event Feedback Collection, processes, Airline Ticketing>
+<Pricing Configuration, payments, Post_Event Feedback Collection>
+<Public Transport Ticketing, advertises, Subscription or Season Pass Management>
+<Public Transport Ticketing, transfers, Mobile Ticketing>
diff --git a/test/graphviz/scanned_hard/graphviz_94.dot b/test/graphviz/scanned_hard/graphviz_94.dot
new file mode 100644
index 0000000000000000000000000000000000000000..da27e2095682561aa8f1c3b5b597d32601a40069
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_94.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=LR
+	N0 [label="Software Integrity Checks" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N1 [label="Anonymous Credential Systems" color="#FFC2C2" fillcolor="#FFEBEB" shape=Mdiamond style=filled]
+	N2 [label="Touchscreen Voting Machines" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N3 [label="System Certification" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	N4 [label=Auditability color="#FFC2C2" fillcolor="#FFEBEB" shape=hexagon style=filled]
+	N5 [label="Ballot Creation" color="#FFE470" fillcolor="#FFFAE0" shape=folder style=filled]
+	N6 [label="Remote Voting Solutions" color="#FFE470" fillcolor="#FFFAE0" shape=diamond style=filled]
+	N7 [label="Voter Authentication" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N8 [label="Accessibility Features" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N0 -> N1 [color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [color="#FFE470" dir=forward penwidth=1.5 style=solid]
+	N2 -> N3 [label=communicates color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [color="#CD8FF2" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=audits color="#FFC2C2" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=alerts color="#FFC2C2" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [label=casts color="#FFE470" dir=forward penwidth=1.5 style=dashed]
+	N7 -> N8 [label=develops color="#000000" dir=forward penwidth=1.5 style=solid]
+	N3 -> N2 [label=resists color="#CD8FF2" dir=forward penwidth=1.5 style=solid]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_97.dot b/test/graphviz/scanned_hard/graphviz_97.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ae5b007d3d99e6424b8b1f6065ac86fc49b9734a
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_97.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=LR
+	N0 [label="Library Website Management" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N1 [label="Data Migration" color="#64B5F6" fillcolor="#E3F2FD" shape=hexagon style=filled]
+	N2 [label="Collection Development" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N3 [label="Subject Indexing" color="#81C784" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N4 [label="Circulation Management" color="#64B5F6" fillcolor="#E3F2FD" shape=parallelogram style=filled]
+	N5 [label="Technical Support for Systems" color="#4DB6AC" fillcolor="#E0F2F1" shape=plaintext style=filled]
+	N6 [label="Serials Control" color="#81C784" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+	N7 [label="Patron Services" color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+	N8 [label="System Upgrades" color="#4DB6AC" fillcolor="#E0F2F1" shape=diamond style=filled]
+	N9 [label="Discovery Layers" color="#4DB6AC" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N0 -> N1 [color="#81C784" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=collaborates color="#4DB6AC" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=educates color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N3 -> N4 [label=trains color="#000000" dir=forward penwidth=1.5 style=dashed]
+	N4 -> N5 [label=borrows color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N5 -> N6 [label=develops color="#4DB6AC" dir=forward penwidth=1.5 style=solid]
+	N6 -> N7 [color="#000000" dir=forward penwidth=1.5 style=solid]
+	N7 -> N8 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N8 -> N9 [color="#64B5F6" dir=forward penwidth=1.5 style=solid]
+	N6 -> N8 [color="#81C784" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_98.dot b/test/graphviz/scanned_hard/graphviz_98.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7fc52369ccdac6b7a3051130c9cd78cfb32807c5
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_98.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=LR
+	N0 [label="User Interface for Digital Archives" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N1 [label="Legal and Ethical Compliance" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+	N2 [label="Public Access Systems" color="#94C0C0" fillcolor="#CADEDE" shape=octagon style=filled]
+	N3 [label="Acquisition and Accessioning" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N4 [label="Oral History Collection" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+	N5 [label="Provenance Tracking" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N6 [label="Records Transfer Processes" color="#FFCC80" fillcolor="#FFF0CC" shape=plaintext style=filled]
+	N7 [label="Appraisal and Selection" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N0 -> N1 [color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N1 -> N2 [label=manages color="#FFEB3B" dir=forward penwidth=1.5 style=dashed]
+	N2 -> N3 [label=validates color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N3 -> N4 [label=collects color="#000000" dir=forward penwidth=1.5 style=solid]
+	N4 -> N5 [color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+	N5 -> N6 [label=digitizes color="#FFCC80" dir=forward penwidth=1.5 style=dashed]
+	N6 -> N7 [label=protects color="#94C0C0" dir=forward penwidth=1.5 style=solid]
+	N0 -> N2 [label=restores color="#94C0C0" dir=forward penwidth=1.5 style=dashed]
+}
diff --git a/test/graphviz/scanned_hard/graphviz_98.txt b/test/graphviz/scanned_hard/graphviz_98.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a15bcf4b90546ea31e79de158cce219f8d400ab7
--- /dev/null
+++ b/test/graphviz/scanned_hard/graphviz_98.txt
@@ -0,0 +1,8 @@
+<Acquisition and Accessioning, collects, Oral History Collection>
+<Legal and Ethical Compliance, manages, Public Access Systems>
+<Oral History Collection, connectedTo, Provenance Tracking>
+<Provenance Tracking, digitizes, Records Transfer Processes>
+<Public Access Systems, validates, Acquisition and Accessioning>
+<Records Transfer Processes, protects, Appraisal and Selection>
+<User Interface for Digital Archives, connectedTo, Legal and Ethical Compliance>
+<User Interface for Digital Archives, restores, Public Access Systems>