diff --git a/test/diagrams/graph_hard/diagrams_103.dot b/test/diagrams/graph_hard/diagrams_103.dot
new file mode 100644
index 0000000000000000000000000000000000000000..24b549450568ab98c2175f24fda02a99776080cd
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_103.dot
@@ -0,0 +1,60 @@
+digraph {
+	rankdir=BT
+	N0 [label="Order Status Check" color="#3F51B5" fillcolor="#C5CAE9" shape=document style=filled]
+	N1 [label="Issue Escalation" color="#3F51B5" fillcolor="#C5CAE9" shape=document style=filled]
+	N2 [label="Inquiry Handling" color="#AB47BC" fillcolor="#F3E5F5" shape=inputoutput style=filled]
+	N3 [label="Knowledge Base Creation" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N4 [label="Account Management" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N5 [label="Customer Journey Mapping" color="#AB47BC" fillcolor="#F3E5F5" shape=document style=filled]
+	N6 [label="Service Blueprinting" color="#AB47BC" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N7 [label="FAQ Management" color="#03A9F4" fillcolor="#B3E5FC" shape=preparation style=filled]
+	N8 [label="Customer Satisfaction Survey" color="#3F51B5" fillcolor="#C5CAE9" shape=multipledocuments style=filled]
+	N9 [label="Customer Onboarding Support" color="#03A9F4" fillcolor="#B3E5FC" shape=diamond style=filled]
+	S1 [label="" color="#03A9F4" fillcolor="#B3E5FC" 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]
+	subgraph cluster_Refund Processing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Refund Processing"
+		nest0_0 [label="Email Support" color="#AB47BC" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+		nest0_1 [label="Up_selling Opportunities" color="#AB47BC" fillcolor="#F3E5F5" shape=preparation style=filled]
+		nest0_2 [label="Sentiment Analysis" color="#3F51B5" fillcolor="#C5CAE9" shape=diamond style=filled]
+		nest0_3 [label="Self_Service Portal Management" color="#03A9F4" fillcolor="#B3E5FC" shape=hexagon style=filled]
+	}
+	subgraph cluster_Training Customer Service Agents {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Training Customer Service Agents"
+		nest1_0 [label="First Contact Resolution Optimization" color="#AB47BC" fillcolor="#F3E5F5" shape=preparation style=filled]
+		nest1_1 [label="Customer Success Management" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+		nest1_2 [label="Product Information Provision" color="#3F51B5" fillcolor="#C5CAE9" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#03A9F4" 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="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest1_0 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N3 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N4 -> S1 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#AB47BC" penwidth=1.5 style=solid label="records" dir=forward]
+	S1 -> N7 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N6 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_109.dot b/test/diagrams/graph_hard/diagrams_109.dot
new file mode 100644
index 0000000000000000000000000000000000000000..dbba2570ae9604770bab032990b70f240836c1a4
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_109.dot
@@ -0,0 +1,76 @@
+digraph {
+	rankdir=BT
+	N0 [label="Reclamation" color="#FFCC80" fillcolor="#FFF0CC" shape=vnode_shape style=filled]
+	N1 [label="Mine Planning" color="#BDBDBD" fillcolor="#F5F5F5" shape=preparation style=filled]
+	N2 [label="Environmental Impact Assessment" color="#FFCC80" fillcolor="#FFF0CC" shape=rectangle style=filled]
+	N3 [label="Exploration" color="#FFCC80" fillcolor="#FFF0CC" shape=rect style=filled]
+	N4 [label="Mine Closure Planning" color="#FFCC80" fillcolor="#FFF0CC" shape=predefinedprocess style=filled]
+	N5 [label="Feasibility Study" color="#FFCC80" fillcolor="#FFF0CC" shape=inputoutput style=filled]
+	N6 [label="Resource Estimation" color="#BDBDBD" fillcolor="#F5F5F5" shape=predefinedprocess style=filled]
+	N7 [label="Community Relations" color="#D3EB9F" fillcolor="#F8FDD3" shape=hexagon style=filled]
+	N8 [label="Ventilation System" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	N9 [label="Tailings Management" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N10 [label="Safety Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=rectangle style=filled]
+	N11 [label="Regulatory Compliance Reporting" color="#D3EB9F" fillcolor="#F8FDD3" shape=rect style=filled]
+	N12 [label="Mineral Processing" color="#D3EB9F" fillcolor="#F8FDD3" shape=rectangle style=filled]
+	N13 [label="Ore Extraction" color="#FFCC80" fillcolor="#FFF0CC" shape=rectangle style=filled]
+	N14 [label="Geotechnical Stability Analysis" color="#D3EB9F" fillcolor="#F8FDD3" shape=rect style=filled]
+	N15 [label="Open Pit Mining Operations" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	S0 [label="" color="#FFCC80" fillcolor="#FFF0CC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#D3EB9F" fillcolor="#F8FDD3" 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="#FFCC80" fillcolor="#FFF0CC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Geological Survey {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Geological Survey"
+		nest0_0 [label="Noise Management" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+		nest0_1 [label="Ore Sorting" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+	}
+	subgraph cluster_Waste Rock Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Waste Rock Management"
+		nest1_0 [label="Exploration Drilling" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+		nest1_1 [label="Permit Acquisition" color="#FFCC80" fillcolor="#FFF0CC" shape=database style=filled]
+	}
+	N0 -> N1 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFCC80" penwidth=1.5 style=solid 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="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed label="separates" dir=forward]
+	N7 -> nest0_0 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N14 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#000000" penwidth=1.5 style=dashed label="complies" dir=forward]
+	N2 -> S1 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=dashed label="develops" dir=forward]
+	S1 -> N13 [color="#D3EB9F" penwidth=1.5 style=dashed label="drills" dir=forward]
+	N12 -> M0 [color="#000000" penwidth=1.5 style=dashed label="plans" dir=forward]
+	N13 -> M0 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N11 -> M0 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	M0 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N12 -> M1 [color="#FFCC80" penwidth=1.5 style=dashed label="extracts" dir=forward]
+	N5 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#BDBDBD" penwidth=1.5 style=dashed label="maintains" dir=forward]
+	M1 -> N14 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_110.txt b/test/diagrams/graph_hard/diagrams_110.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cb211bb18e834d0cdfd50df098235274480f3dbc
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_110.txt
@@ -0,0 +1,35 @@
+<Asset Management, connectedTo, Crushing and Grinding>
+<Asset Management, connectedTo, Noise Management>
+<Crushing and Grinding, connectedTo, Feasibility Study>
+<Drilling and Blasting, connectedTo, Mine Closure Planning>
+<Environmental Impact Assessment, connectedTo, Drilling and Blasting>
+<Equipment Maintenance, connectedTo, Haulage>
+<Equipment Maintenance, connectedTo, Resource Estimation>
+<Exploration, connectedTo, Environmental Impact Assessment>
+<Exploration Drilling, safety, Ventilation System>
+<Feasibility Study, connectedTo, Refining>
+<Feasibility Study, connectedTo, Waste Rock Management>
+<Geological Survey, connectedTo, Asset Management>
+<Geological Survey, connectedTo, Crushing and Grinding>
+<Geological Survey, connectedTo, Refining>
+<Geological Survey, connectedTo, Remote Operations Center>
+<Geological Survey, connectedTo, Underground Mining Operations>
+<Haulage, connectedTo, Robotics in Mining>
+<Mine Closure Planning, connectedTo, Waste Rock Management>
+<Noise Management, connectedTo, Crushing and Grinding>
+<Open Pit Mining Operations, connectedTo, Underground Mining Operations>
+<Ore Extraction, connectedTo, Equipment Maintenance>
+<Ore Extraction, connectedTo, Geological Survey>
+<Ore Extraction, connectedTo, Open Pit Mining Operations>
+<Ore Extraction, connectedTo, Refining>
+<Ore Extraction, connectedTo, Remote Operations Center>
+<Ore Extraction, connectedTo, Resource Estimation>
+<Reclamation, connectedTo, Exploration>
+<Reclamation, separates, Equipment Maintenance>
+<Refining, connectedTo, Remote Operations Center>
+<Resource Estimation, connectedTo, Open Pit Mining Operations>
+<Robotics in Mining, connectedTo, Waste Rock Management>
+<Underground Mining Operations, connectedTo, Refining>
+<Ventilation System, connectedTo, Ore Extraction>
+<Waste Rock Management, connectedTo, Reclamation>
+<Waste Rock Management, connectedTo, Refining>
diff --git a/test/diagrams/graph_hard/diagrams_111.dot b/test/diagrams/graph_hard/diagrams_111.dot
new file mode 100644
index 0000000000000000000000000000000000000000..16facdb9f3a12bf3a93d98fe88908fc589d0c1b6
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_111.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=LR
+	N0 [label="Safety Management" color="#4CAF50" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N1 [label="Exploration" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+	N2 [label="Mine Planning" color="#DCE775" fillcolor="#FCFCE7" shape=diamond style=filled]
+	N3 [label="Water Management" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+	N4 [label="Robotics in Mining" color="#DCE775" fillcolor="#FCFCE7" shape=parallelogram style=filled]
+	N5 [label="Reclamation" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+	N6 [label="Noise Management" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	N7 [label="Refining" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+	N8 [label="Energy Management" color="#4CAF50" fillcolor="#C8E6C9" shape=document style=filled]
+	N9 [label="Autonomous Haulage Systems" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+	N10 [label="Underground Mining Operations" color="#E57373" fillcolor="#FFEBEE" shape=predefinedprocess style=filled]
+	N11 [label="Emergency Response Planning" color="#4CAF50" fillcolor="#C8E6C9" shape=database style=filled]
+	N12 [label="Open Pit Mining Operations" color="#E57373" fillcolor="#FFEBEE" shape=action style=filled]
+	N13 [label="Equipment Maintenance" color="#DCE775" fillcolor="#FCFCE7" shape=predefinedprocess style=filled]
+	S0 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#4CAF50" fillcolor="#C8E6C9" 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]
+	M1 [label="" color="#DCE775" fillcolor="#FCFCE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Crushing and Grinding {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Crushing and Grinding"
+		nest0_0 [label="Community Relations" color="#4CAF50" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+		nest0_1 [label="Mineral Processing" color="#4CAF50" fillcolor="#C8E6C9" shape=action style=filled]
+	}
+	subgraph cluster_Asset Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Asset Management"
+		nest1_0 [label="Dust Control" color="#DCE775" fillcolor="#FCFCE7" shape=action style=filled]
+		nest1_1 [label="Core Logging" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+		nest1_2 [label="Tailings Management" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+		nest1_3 [label="Ore Extraction" color="#E57373" fillcolor="#FFEBEE" 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="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#DCE775" penwidth=1.5 style=solid label="markets" dir=forward]
+	N5 -> N6 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#DCE775" penwidth=1.5 style=dashed label="extracts" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N6 [color="#E57373" 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="#E57373" penwidth=1.5 style=dashed label="complies" dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest1_0 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#E57373" 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=dashed dir=forward]
+	N10 -> S2 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	M0 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N11 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_123.dot b/test/diagrams/graph_hard/diagrams_123.dot
new file mode 100644
index 0000000000000000000000000000000000000000..321dbd8ff9999a93fb7187bfe787262d077994a3
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_123.dot
@@ -0,0 +1,67 @@
+digraph {
+	rankdir=RL
+	N0 [label="Climate Data Archiving" color="#26A69A" fillcolor="#E0F2F1" shape=database style=filled]
+	N1 [label="Public Weather Briefing" color="#BA68C8" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N2 [label="Humidity Sensing" color="#AABEC6" fillcolor="#E0E6E9" shape=vnode_shape style=filled]
+	N3 [label="Flood Prediction" color="#26A69A" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N4 [label="Pollution Dispersion Modeling" color="#BA68C8" fillcolor="#F3E5F5" shape=rect style=filled]
+	N5 [label="Storm Tracking" color="#26A69A" fillcolor="#E0F2F1" shape=action style=filled]
+	N6 [label="Marine Weather Forecast" color="#26A69A" fillcolor="#E0F2F1" shape=preparation style=filled]
+	N7 [label="Air Quality Forecasting" color="#BA68C8" fillcolor="#F3E5F5" shape=box style=filled]
+	N8 [label="Upper Air Chart Analysis" color="#BA68C8" fillcolor="#F3E5F5" shape=rectangle style=filled]
+	N9 [label="Weather Forecasting" color="#BA68C8" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N10 [label="Precipitation Measurement" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N11 [label="Drought Monitoring" color="#AABEC6" fillcolor="#E0E6E9" shape=multipledocuments style=filled]
+	N12 [label="Cloud Observation" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N13 [label="Severe Weather Warning" color="#BA68C8" fillcolor="#F3E5F5" shape=database style=filled]
+	M1 [label="" color="#26A69A" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#AABEC6" fillcolor="#E0E6E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Satellite Meteorology {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Satellite Meteorology"
+		nest0_0 [label="Aviation Weather Briefing" color="#AABEC6" fillcolor="#E0E6E9" shape=predefinedprocess style=filled]
+		nest0_1 [label="Wind Speed and Direction" color="#26A69A" fillcolor="#E0F2F1" shape=document style=filled]
+		nest0_2 [label="Radar Imaging" color="#BA68C8" fillcolor="#F3E5F5" shape=document style=filled]
+	}
+	subgraph cluster_Tornado Watch or Warning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Tornado Watch or Warning"
+		nest1_0 [label="Nowcasting" color="#BA68C8" fillcolor="#F3E5F5" shape=diamond style=filled]
+		nest1_1 [label="Meteorological Instrument Calibration" color="#BA68C8" fillcolor="#F3E5F5" shape=parallelogram style=filled]
+		nest1_2 [label="Snowfall Measurement" color="#26A69A" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#BA68C8" 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=dashed dir=forward]
+	N4 -> N5 [color="#AABEC6" penwidth=1.5 style=dashed label="interprets" dir=forward]
+	N5 -> N6 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#AABEC6" penwidth=1.5 style=dashed label="calculates" dir=forward]
+	N12 -> nest0_0 [color="#AABEC6" penwidth=1.5 style=dashed label="warns" dir=forward]
+	nest0_2 -> N6 [color="#AABEC6" 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="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N6 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	M1 -> N9 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M2 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N6 -> M2 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	M2 -> N9 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N0 -> N10 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N2 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N13 -> N11 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N2 -> N10 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_13.txt b/test/diagrams/graph_hard/diagrams_13.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5c8e090ba9ce3a293f68a3dbb5e2d04ba49736b5
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_13.txt
@@ -0,0 +1,35 @@
+<Affiliate Marketing, connectedTo, Supplier Onboarding>
+<Cross_selling Recommendation, connectedTo, Customer Review>
+<Cross_selling Recommendation, connectedTo, Gift Card Purchase>
+<Cross_selling Recommendation, connectedTo, Return Merchandise Authorization>
+<Customer Review, connectedTo, Delivery Rescheduling>
+<Customer Review, connectedTo, Order Confirmation>
+<Customer Review, connectedTo, Price Adjustment>
+<Customer Review, notifies, Return Merchandise Authorization>
+<Customer Segmentation, connectedTo, Data Analytics Reporting>
+<Data Analytics Reporting, connectedTo, Cross_selling Recommendation>
+<Data Analytics Reporting, connectedTo, Order Confirmation>
+<Data Analytics Reporting, connectedTo, Return Merchandise Authorization>
+<Data Analytics Reporting, manages, User Account Management>
+<Delivery Rescheduling, connectedTo, Gift Card Purchase>
+<Gift Card Purchase, connectedTo, Order Confirmation>
+<Gift Card Purchase, connectedTo, Return Merchandise Authorization>
+<Invoice Generation, connectedTo, Order Confirmation>
+<Payment, lists, Up_selling Offer>
+<Price Adjustment, connectedTo, Order Confirmation>
+<Promotion Application, connectedTo, Refund Process>
+<Refund Process, connectedTo, Customer Segmentation>
+<Refund Process, connectedTo, Return Merchandise Authorization>
+<Refund Process, connectedTo, Shipment>
+<Return Merchandise Authorization, confirms, Affiliate Marketing>
+<Return Merchandise Authorization, connectedTo, Price Adjustment>
+<Shipment, connectedTo, Customer Segmentation>
+<Shipment, connectedTo, Data Analytics Reporting>
+<Shipment, connectedTo, Gift Card Purchase>
+<Shipment, inquires, Cross_selling Recommendation>
+<Subscription Service, connectedTo, Customer Segmentation>
+<Subscription Service, connectedTo, Return Merchandise Authorization>
+<Subscription Service, returns, Refund Process>
+<Supplier Onboarding, connectedTo, Invoice Generation>
+<Up_selling Offer, connectedTo, Promotion Application>
+<User Account Management, connectedTo, Payment>
diff --git a/test/diagrams/graph_hard/diagrams_130.dot b/test/diagrams/graph_hard/diagrams_130.dot
new file mode 100644
index 0000000000000000000000000000000000000000..05b43eed48132ce9ca8855e194e81523f23feb88
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_130.dot
@@ -0,0 +1,81 @@
+digraph {
+	rankdir=RL
+	N0 [label="New Product Manufacturing" color="#4DB6AC" fillcolor="#E0F2F1" shape=inputoutput style=filled]
+	N1 [label="Contamination Reduction" color="#A1887F" fillcolor="#EFEBE9" shape=rectangle style=filled]
+	N2 [label="Recycling Market Development" color="#A1887F" fillcolor="#EFEBE9" shape=box style=filled]
+	N3 [label="Tyre Recycling" color="#A1887F" fillcolor="#EFEBE9" shape=ellipse style=filled]
+	N4 [label="Composting Organic Waste" color="#F44336" fillcolor="#FFCDD2" shape=rectangle style=filled]
+	N5 [label="Collection Point Management" color="#4DB6AC" fillcolor="#E0F2F1" shape=rect style=filled]
+	N6 [label="Recycling Policy Advocacy" color="#4DB6AC" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N7 [label="Plastic Recycling" color="#4DB6AC" fillcolor="#E0F2F1" shape=predefinedprocess style=filled]
+	N8 [label="Waste Audit for Recycling" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+	N9 [label="Life Cycle Assessment" color="#4DB6AC" fillcolor="#E0F2F1" shape=database style=filled]
+	N10 [label="Chemical Recycling" color="#F44336" fillcolor="#FFCDD2" shape=rect style=filled]
+	N11 [label="Sorting and Segregation" color="#A1887F" fillcolor="#EFEBE9" shape=rect style=filled]
+	N12 [label="Recycling Facility Optimization" color="#4DB6AC" fillcolor="#E0F2F1" shape=rect style=filled]
+	N13 [label="Commercial Recycling Solutions" color="#4DB6AC" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N14 [label="Construction Waste Recycling" color="#F44336" fillcolor="#FFCDD2" shape=preparation style=filled]
+	N15 [label="Mechanical Recycling" color="#4DB6AC" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	N16 [label="Deposit_Return Schemes" color="#4DB6AC" fillcolor="#E0F2F1" shape=document style=filled]
+	N17 [label="Material Purity Testing" color="#F44336" fillcolor="#FFCDD2" shape=predefinedprocess style=filled]
+	S0 [label="" color="#A1887F" fillcolor="#EFEBE9" 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]
+	M0 [label="" color="#F44336" fillcolor="#FFCDD2" 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_Hazardous Material Recovery {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Hazardous Material Recovery"
+		nest0_0 [label="Product Design for Recyclability" color="#F44336" fillcolor="#FFCDD2" shape=vnode_shape style=filled]
+		nest0_1 [label="Energy Recovery from Non_Recyclables" color="#A1887F" fillcolor="#EFEBE9" shape=preparation style=filled]
+		nest0_2 [label="Electronic Waste Recycling" color="#A1887F" fillcolor="#EFEBE9" shape=ellipse style=filled]
+		nest0_3 [label="Public Recycling Programs" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Recycling Data Tracking {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Recycling Data Tracking"
+		nest1_0 [label="Glass Recycling" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+		nest1_1 [label="Textile Recycling" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+		nest1_2 [label="Recycling Infrastructure Development" color="#A1887F" fillcolor="#EFEBE9" shape=document style=filled]
+	}
+	N0 -> N1 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#F44336" penwidth=1.5 style=dashed label="cleans" dir=forward]
+	N13 -> N14 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#F44336" penwidth=1.5 style=solid label="tracks" dir=forward]
+	nest0_1 -> nest0_2 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#F44336" penwidth=1.5 style=solid label="assesses" dir=forward]
+	N8 -> nest0_0 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N17 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest1_0 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N2 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N11 -> S0 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S1 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#F44336" penwidth=1.5 style=dashed label="enforces" dir=forward]
+	M0 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_145.txt b/test/diagrams/graph_hard/diagrams_145.txt
new file mode 100644
index 0000000000000000000000000000000000000000..612864ecf6ffa3fb95436070bd34e0671ed27124
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_145.txt
@@ -0,0 +1,34 @@
+<Capacity Building for Local Communities, connectedTo, Cash Transfer Programs>
+<Capacity Building for Local Communities, connectedTo, Reconstruction>
+<Capacity Building for Local Communities, connectedTo, Resilience Building>
+<Cash Transfer Programs, connectedTo, Infrastructure Repair>
+<Communication Protocols, connectedTo, Resilience Building>
+<Debris Management, connectedTo, Communication Protocols>
+<Debris Management, connectedTo, International Aid Coordination>
+<Debris Management, connectedTo, Resilience Building>
+<Debris Management, connectedTo, Resource Mobilization>
+<Early Recovery Actions, connectedTo, International Aid Coordination>
+<Economic Recovery Initiatives, connectedTo, Evacuation Procedures>
+<Evacuation Procedures, connectedTo, International Aid Coordination>
+<Hazard Identification, connectedTo, Debris Management>
+<Hazard Identification, connectedTo, Hazard Mapping>
+<Hazard Mapping, connectedTo, Capacity Building for Local Communities>
+<Hazard Mapping, connectedTo, Debris Management>
+<Hazard Mapping, connectedTo, Policy and Legislation Review>
+<Incident Command System, restores, Debris Management>
+<Infrastructure Repair, connectedTo, Volunteer Coordination>
+<International Aid Coordination, connectedTo, Resource Mobilization>
+<Logistics and Supply Chain, connectedTo, Debris Management>
+<Logistics and Supply Chain, connectedTo, Hazard Identification>
+<Logistics and Supply Chain, connectedTo, Resilience Building>
+<Mitigation Strategies, connectedTo, Economic Recovery Initiatives>
+<Policy and Legislation Review, connectedTo, Mitigation Strategies>
+<Reconstruction, connectedTo, Communication Protocols>
+<Reconstruction, connectedTo, Debris Management>
+<Reconstruction, connectedTo, Incident Command System>
+<Reconstruction, connectedTo, International Aid Coordination>
+<Reconstruction, connectedTo, Risk Assessment>
+<Resilience Building, enforces, International Aid Coordination>
+<Resource Mobilization, connectedTo, Risk Assessment>
+<Risk Assessment, connectedTo, Recovery Planning>
+<Volunteer Coordination, connectedTo, Early Recovery Actions>
diff --git a/test/diagrams/graph_hard/diagrams_148.dot b/test/diagrams/graph_hard/diagrams_148.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9bdb2f67ab8fd17963261d3e467b38d4ece6a24d
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_148.dot
@@ -0,0 +1,83 @@
+digraph {
+	rankdir=LR
+	N0 [label="Defense Procurement" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+	N1 [label="Counter_Terrorism Operations" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+	N2 [label="Ground Operations" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+	N3 [label="Demobilization" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+	N4 [label="Chaplain Services" color="#388E3C" fillcolor="#F1F8E9" shape=predefinedprocess style=filled]
+	N5 [label="Air Operations" color="#CB9BE1" fillcolor="#F2E6F5" shape=inputoutput style=filled]
+	N6 [label="Intelligence Gathering" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+	N7 [label="Space Operations" color="#CB9BE1" fillcolor="#F2E6F5" shape=diamond style=filled]
+	N8 [label="Specialized Training" color="#388E3C" fillcolor="#F1F8E9" shape=preparation style=filled]
+	N9 [label="Civil_Military Cooperation" color="#A188DB" fillcolor="#DED7F0" shape=multipledocuments style=filled]
+	N10 [label="Peacekeeping Missions" color="#A188DB" fillcolor="#DED7F0" shape=predefinedprocess style=filled]
+	N11 [label="Recruitment" color="#CB9BE1" fillcolor="#F2E6F5" shape=parallelogram style=filled]
+	N12 [label="Weapon Systems Development" color="#388E3C" fillcolor="#F1F8E9" shape=rectangle style=filled]
+	N13 [label="Force Projection" color="#A188DB" fillcolor="#DED7F0" shape=vnode_shape style=filled]
+	N14 [label="Military Law" color="#CB9BE1" fillcolor="#F2E6F5" shape=database style=filled]
+	N15 [label="Disaster Relief Deployment" color="#CB9BE1" fillcolor="#F2E6F5" shape=hexagon style=filled]
+	S0 [label="" color="#CB9BE1" fillcolor="#F2E6F5" 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]
+	M0 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#388E3C" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Readiness Assessment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Readiness Assessment"
+		nest0_0 [label="Personnel Management" color="#388E3C" fillcolor="#F1F8E9" shape=rect style=filled]
+		nest0_1 [label="Medical Support" color="#CB9BE1" fillcolor="#F2E6F5" shape=rectangle style=filled]
+		nest0_2 [label="Family Support Programs" color="#388E3C" fillcolor="#F1F8E9" shape=box style=filled]
+	}
+	subgraph cluster_Counter_Insurgency Operations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Counter_Insurgency Operations"
+		nest1_0 [label="Unmanned Systems Operation" color="#CB9BE1" fillcolor="#F2E6F5" shape=hexagon style=filled]
+		nest1_1 [label="Military Strategy Development" color="#A188DB" fillcolor="#DED7F0" shape=inputoutput style=filled]
+		nest1_2 [label="Naval Operations" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+		nest1_3 [label="Rules of Engagement" color="#A188DB" fillcolor="#DED7F0" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#A188DB" penwidth=1.5 style=solid label="commands" dir=forward]
+	N2 -> N3 [color="#A188DB" 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#A188DB" penwidth=1.5 style=solid label="surveys" dir=forward]
+	N11 -> N12 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#CB9BE1" 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="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N14 [color="#388E3C" penwidth=1.5 style=dashed label="protects" dir=forward]
+	nest1_0 -> nest1_1 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N10 -> nest1_0 [color="#A188DB" penwidth=1.5 style=solid label="attacks" dir=forward]
+	nest1_3 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S0 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#CB9BE1" penwidth=1.5 style=dashed label="recruits" dir=forward]
+	S1 -> N8 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#A188DB" penwidth=1.5 style=solid label="trains" dir=forward]
+	N1 -> M0 [color="#CB9BE1" penwidth=1.5 style=dashed label="researches" dir=forward]
+	M0 -> N6 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N5 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_151.txt b/test/diagrams/graph_hard/diagrams_151.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8adcc624ac553f4b4e02218767b4247ed18a5569
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_151.txt
@@ -0,0 +1,25 @@
+<Aerospace Engineering, connectedTo, Airport Security Management>
+<Air Cargo Logistics, connectedTo, Aircraft Manufacturing>
+<Air Cargo Logistics, connectedTo, Crew Resource Management>
+<Air Cargo Logistics, connectedTo, Fleet Management>
+<Air Cargo Logistics, connectedTo, Passenger Check_in>
+<Air Cargo Logistics, documents, Weather Briefing>
+<Aircraft Manufacturing, connectedTo, Baggage Handling>
+<Aircraft Manufacturing, connectedTo, Crew Resource Management>
+<Aircraft Manufacturing, connectedTo, Ground Support>
+<Aircraft Manufacturing, connectedTo, Sustainable Aviation Fuel Development>
+<Aircraft Manufacturing, connectedTo, Unmanned Aerial Vehicle Integration>
+<Airport Operations, connectedTo, Crew Resource Management>
+<Airport Operations, connectedTo, Security Screening>
+<Airport Security Management, connectedTo, Passenger Boarding>
+<Aviation Safety Investigation, connectedTo, Aerospace Engineering>
+<Avionics Repair, connectedTo, Fleet Management>
+<Baggage Handling, connectedTo, Ground Support>
+<Fleet Management, connectedTo, Passenger Check_in>
+<Ground Support, connectedTo, Crew Resource Management>
+<Passenger Boarding, connectedTo, Aircraft Manufacturing>
+<Passenger Check_in, connectedTo, Weather Briefing>
+<Security Screening, connectedTo, Passenger Boarding>
+<Sustainable Aviation Fuel Development, connectedTo, Avionics Repair>
+<Unmanned Aerial Vehicle Integration, connectedTo, Aviation Safety Investigation>
+<Weather Briefing, connectedTo, Airport Operations>
diff --git a/test/diagrams/graph_hard/diagrams_153.dot b/test/diagrams/graph_hard/diagrams_153.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d47f7b64b5c66a61ed918f6a154fe8edc6aaf709
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_153.dot
@@ -0,0 +1,73 @@
+digraph {
+	rankdir=LR
+	N0 [label="Route Optimization" color="#A1887F" fillcolor="#EFEBE9" shape=rect style=filled]
+	N1 [label="Sustainable Aviation Fuel Development" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	N2 [label="In_flight Service" color="#A1887F" fillcolor="#EFEBE9" shape=database style=filled]
+	N3 [label="Security Screening" color="#9575CD" fillcolor="#EDE7F6" shape=action style=filled]
+	N4 [label="Aircraft Maintenance" color="#9575CD" fillcolor="#EDE7F6" shape=rect style=filled]
+	N5 [label="Emergency Procedures Training" color="#A1887F" fillcolor="#EFEBE9" shape=vnode_shape style=filled]
+	N6 [label="Avionics Repair" color="#A1887F" fillcolor="#EFEBE9" shape=action style=filled]
+	N7 [label="Navigation System Check" color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+	N8 [label="Aircraft Manufacturing" color="#A1887F" fillcolor="#EFEBE9" shape=box style=filled]
+	N9 [label="Air Cargo Logistics" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N10 [label="Weather Briefing" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+	N11 [label="Gate Assignment" color="#A1887F" fillcolor="#EFEBE9" shape=inputoutput style=filled]
+	N12 [label="Passenger Boarding" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+	N13 [label="Air Traffic Control" color="#9575CD" fillcolor="#EDE7F6" shape=diamond style=filled]
+	N14 [label="Engine Overhaul" color="#9575CD" fillcolor="#EDE7F6" shape=database style=filled]
+	S0 [label="" color="#A1887F" fillcolor="#EFEBE9" 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]
+	M0 [label="" color="#A1887F" fillcolor="#EFEBE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#A1887F" fillcolor="#EFEBE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Remote Tower Operations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Remote Tower Operations"
+		nest0_0 [label="Airport Operations" color="#A1887F" fillcolor="#EFEBE9" shape=document style=filled]
+		nest0_1 [label="Airspace Management" color="#A1887F" fillcolor="#EFEBE9" shape=inputoutput style=filled]
+		nest0_2 [label="Fueling Operations" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+	}
+	subgraph cluster_Flight Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Flight Planning"
+		nest1_0 [label="Runway Management" color="#A1887F" fillcolor="#EFEBE9" shape=multipledocuments style=filled]
+		nest1_1 [label="Regulatory Compliance" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+		nest1_2 [label="Airworthiness Certification" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#9575CD" penwidth=1.5 style=dashed label="investigates" dir=forward]
+	N12 -> N13 [color="#9575CD" penwidth=1.5 style=solid label="navigates" dir=forward]
+	N13 -> N14 [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="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N13 -> nest0_0 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N4 [color="#A1887F" 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="#A1887F" penwidth=1.5 style=solid label="boards" dir=forward]
+	N3 -> nest1_0 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N6 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N10 -> S0 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N7 -> S1 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#A1887F" penwidth=1.5 style=dashed label="trains" dir=forward]
+	S1 -> N14 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed label="tests" dir=forward]
+	N7 -> M0 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N14 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_154.dot b/test/diagrams/graph_hard/diagrams_154.dot
new file mode 100644
index 0000000000000000000000000000000000000000..00035aa74e0b4c047ea0fe2c128f51b8389bf17b
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_154.dot
@@ -0,0 +1,88 @@
+digraph {
+	rankdir=RL
+	N0 [label="Autonomous Vehicle Navigation" color="#FFF176" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N1 [label="Marine Charting" color="#FFF176" fillcolor="#FFFDE7" shape=diamond style=filled]
+	N2 [label="Digital Compass Integration" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+	N3 [label="Waypoint Setting" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+	N4 [label="Voice Guidance Customization" color="#EAEFA5" fillcolor="#FDFCEB" shape=vnode_shape style=filled]
+	N5 [label="Traffic Information" color="#FFF176" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N6 [label="Public Transit Navigation" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N7 [label="Cycle Route Planning" color="#8C9EFF" fillcolor="#D3D7EB" shape=rectangle style=filled]
+	N8 [label="Location_Based Services" color="#EAEFA5" fillcolor="#FDFCEB" shape=rectangle style=filled]
+	N9 [label="Turn_by_Turn Directions" color="#FFF176" fillcolor="#FFFDE7" shape=multipledocuments style=filled]
+	N10 [label="Augmented Reality Navigation" color="#FFF176" fillcolor="#FFFDE7" shape=database style=filled]
+	N11 [label="Geocoding" color="#EAEFA5" fillcolor="#FDFCEB" shape=multipledocuments style=filled]
+	N12 [label="Points of Interest Search" color="#FFF176" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N13 [label="Satellite Navigation Systems" color="#8C9EFF" fillcolor="#D3D7EB" shape=inputoutput style=filled]
+	N14 [label="GPS Positioning" color="#EAEFA5" fillcolor="#FDFCEB" shape=preparation style=filled]
+	N15 [label="ETA Estimation" color="#FFF176" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+	N16 [label="Inertial Navigation System" color="#8C9EFF" fillcolor="#D3D7EB" shape=vnode_shape style=filled]
+	S0 [label="" color="#FFF176" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#EAEFA5" fillcolor="#FDFCEB" 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="#FFF176" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FFF176" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Reverse Geocoding {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Reverse Geocoding"
+		nest0_0 [label="Altitude Tracking" color="#FFF176" fillcolor="#FFFDE7" shape=diamond style=filled]
+		nest0_1 [label="Geofencing" color="#EAEFA5" fillcolor="#FDFCEB" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Hazard Alerts {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Hazard Alerts"
+		nest1_0 [label="Real_Time Re_routing" color="#8C9EFF" fillcolor="#D3D7EB" shape=predefinedprocess style=filled]
+		nest1_1 [label="Topographic Mapping" color="#FFF176" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#8C9EFF" penwidth=1.5 style=solid label="corrects" dir=forward]
+	N2 -> N3 [color="#FFF176" 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 label="follows" dir=forward]
+	N5 -> N6 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#8C9EFF" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N9 -> N10 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#8C9EFF" penwidth=1.5 style=solid label="calibrates" dir=forward]
+	N11 -> N12 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N13 -> nest0_0 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N7 [color="#000000" penwidth=1.5 style=solid label="updates" dir=forward]
+	nest1_0 -> nest1_1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N13 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N12 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S0 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N13 -> S2 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	S2 -> N16 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S2 -> N15 [color="#8C9EFF" penwidth=1.5 style=dashed label="plans" dir=forward]
+	N2 -> M0 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#8C9EFF" penwidth=1.5 style=dashed label="guides" dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	M2 -> N6 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_159.txt b/test/diagrams/graph_hard/diagrams_159.txt
new file mode 100644
index 0000000000000000000000000000000000000000..509d32ab3896d05dca1be097732a6ccb871494ba
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_159.txt
@@ -0,0 +1,26 @@
+<3D Printed Tooling, connectedTo, 4D Printing>
+<3D Printed Tooling, connectedTo, Digital Twin for 3D Prints>
+<3D Printed Tooling, connectedTo, Troubleshooting Print Errors>
+<3D Printed Tooling, shares, Intellectual Property Protection for Designs>
+<4D Printing, connectedTo, Troubleshooting Print Errors>
+<Aerospace Part Production, connectedTo, Maintenance and Repair of Printers>
+<Bioprinting, connectedTo, File Format Conversion>
+<Digital Twin for 3D Prints, connectedTo, Fused Deposition Modeling>
+<Digital Twin for 3D Prints, connectedTo, Intellectual Property Protection for Designs>
+<Digital Twin for 3D Prints, connectedTo, Troubleshooting Print Errors>
+<Distributed Manufacturing, connectedTo, Material Research and Development>
+<File Format Conversion, connectedTo, Distributed Manufacturing>
+<Intellectual Property Protection for Designs, connectedTo, 4D Printing>
+<Maintenance and Repair of Printers, connectedTo, On_Demand Production>
+<Material Research and Development, connectedTo, 3D Printed Tooling>
+<Material Research and Development, connectedTo, Digital Twin for 3D Prints>
+<Material Research and Development, connectedTo, Fused Deposition Modeling>
+<Material Research and Development, connectedTo, Intellectual Property Protection for Designs>
+<Material Research and Development, connectedTo, Prototyping>
+<Material Research and Development, connectedTo, Slicing Software Operation>
+<Medical Device Prototyping, connectedTo, Digital Twin for 3D Prints>
+<Medical Device Prototyping, connectedTo, Material Research and Development>
+<On_Demand Production, connectedTo, Intellectual Property Protection for Designs>
+<Prototyping, connectedTo, Aerospace Part Production>
+<Slicing Software Operation, connectedTo, Bioprinting>
+<Troubleshooting Print Errors, connectedTo, Fused Deposition Modeling>
diff --git a/test/diagrams/graph_hard/diagrams_160.dot b/test/diagrams/graph_hard/diagrams_160.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3c167d3f329b671b751147efc49ad1266c78ded6
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_160.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=LR
+	N0 [label="Ethical Implications of Nanotech" color="#61CAC3" fillcolor="#C2E8E6" shape=diamond style=filled]
+	N1 [label="Water Purification using Nanomaterials" color="#FFEB3B" fillcolor="#FFF9C4" shape=database style=filled]
+	N2 [label="Bio_Nanotechnology Interface" color="#FFE69C" fillcolor="#FFF9D4" shape=rectangle style=filled]
+	N3 [label="Atomic Force Microscopy" color="#FFEB3B" fillcolor="#FFF9C4" shape=inputoutput style=filled]
+	N4 [label="Public Perception of Nanotechnology" color="#FFE69C" fillcolor="#FFF9D4" shape=diamond style=filled]
+	N5 [label="Nanomaterial Synthesis" color="#FFE69C" fillcolor="#FFF9D4" shape=predefinedprocess style=filled]
+	N6 [label="Lab_on_a_Chip Devices" color="#FFE69C" fillcolor="#FFF9D4" shape=inputoutput style=filled]
+	N7 [label="Energy Storage Applications" color="#61CAC3" fillcolor="#C2E8E6" shape=predefinedprocess style=filled]
+	N8 [label="Nanoscale Imaging" color="#61CAC3" fillcolor="#C2E8E6" shape=database style=filled]
+	N9 [label="Photovoltaics" color="#FFE69C" fillcolor="#FFF9D4" shape=diamond style=filled]
+	N10 [label="Environmental Remediation with Nanomaterials" color="#61CAC3" fillcolor="#C2E8E6" shape=vnode_shape style=filled]
+	N11 [label="Nanosensors" color="#61CAC3" fillcolor="#C2E8E6" shape=document style=filled]
+	N12 [label="Transmission Electron Microscopy" color="#61CAC3" fillcolor="#C2E8E6" shape=vnode_shape style=filled]
+	S1 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFEB3B" fillcolor="#FFF9C4" 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_Nanotoxicology {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Nanotoxicology"
+		nest0_0 [label="Spectroscopy" color="#FFE69C" fillcolor="#FFF9D4" shape=parallelogram style=filled]
+		nest0_1 [label="Graphene Production" color="#61CAC3" fillcolor="#C2E8E6" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Quantum Dots {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Quantum Dots"
+		nest1_0 [label="Drug Delivery Systems" color="#FFE69C" fillcolor="#FFF9D4" shape=ellipse style=filled]
+		nest1_1 [label="Nanoparticle Characterization" color="#FFE69C" fillcolor="#FFF9D4" shape=database style=filled]
+		nest1_2 [label="Nanodevice Fabrication" color="#61CAC3" fillcolor="#C2E8E6" shape=predefinedprocess style=filled]
+		nest1_3 [label="Scanning Electron Microscopy" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFEB3B" penwidth=1.5 style=solid label="converts" dir=forward]
+	N4 -> N5 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="commercializes" dir=forward]
+	N7 -> N8 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N11 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N12 [color="#FFE69C" penwidth=1.5 style=dashed label="controls" dir=forward]
+	nest1_0 -> nest1_1 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest1_0 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	S2 -> N4 [color="#FFEB3B" penwidth=1.5 style=dashed label="detects" dir=forward]
+	S2 -> N7 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N8 -> M0 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M0 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N10 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#FFE69C" penwidth=1.5 style=dashed label="enhances" dir=forward]
+	N3 -> M1 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#61CAC3" penwidth=1.5 style=dashed label="designs" dir=forward]
+	N1 -> M1 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_174.txt b/test/diagrams/graph_hard/diagrams_174.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9a293fd990810803e2154702411495ef7509e6ac
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_174.txt
@@ -0,0 +1,37 @@
+<A&R, connectedTo, Instrumental Performance>
+<Beat Making, connectedTo, Merchandise Sales>
+<Beat Making, connectedTo, Music Festival Organization>
+<Beat Making, connectedTo, Music Production>
+<Concert Promotion, connectedTo, Beat Making>
+<Concert Promotion, connectedTo, Mixing>
+<Concert Promotion, connectedTo, Performance>
+<Concert Promotion, transcribes, Synthesizer Programming>
+<Digital Audio Workstation Operation, connectedTo, Concert Promotion>
+<Fan Engagement Strategy, connectedTo, Digital Audio Workstation Operation>
+<Instrumental Performance, connectedTo, Tour Management>
+<Mastering, connectedTo, Digital Audio Workstation Operation>
+<Merchandise Sales, connectedTo, Record Label Operations>
+<Mixing, connectedTo, Music for Film or TV or Games>
+<Music Distribution, connectedTo, Sampling>
+<Music Education, connectedTo, Sound System Design>
+<Music Festival Organization, connectedTo, Songwriting>
+<Music Production, produces, Music Video Production>
+<Music Theory Analysis, connectedTo, A&R>
+<Music Therapy, connectedTo, A&R>
+<Music Therapy, connectedTo, Beat Making>
+<Music Therapy, connectedTo, Fan Engagement Strategy>
+<Music Therapy, connectedTo, Music Distribution>
+<Music Therapy, connectedTo, Sampling>
+<Music Video Production, connectedTo, Performance>
+<Performance, connectedTo, Mixing>
+<Record Label Operations, connectedTo, Royalty Collection>
+<Royalty Collection, connectedTo, Mastering>
+<Sampling, streams, Beat Making>
+<Songwriting, connectedTo, Mixing>
+<Sound System Design, connectedTo, A&R>
+<Sound System Design, connectedTo, Vocal Performance>
+<Synthesizer Programming, connectedTo, A&R>
+<Synthesizer Programming, connectedTo, Music Distribution>
+<Synthesizer Programming, connectedTo, Music Theory Analysis>
+<Tour Management, connectedTo, Music Distribution>
+<Vocal Performance, connectedTo, Music Therapy>
diff --git a/test/diagrams/graph_hard/diagrams_186.dot b/test/diagrams/graph_hard/diagrams_186.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d9c57b55f9bdd8bfdbc49b05e80a3bba6033b491
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_186.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=TB
+	N0 [label="Cloud BI Solutions" color="#80DDEA" fillcolor="#D3F7F9" shape=rect style=filled]
+	N1 [label="Query Optimization" color="#EAEFA5" fillcolor="#FDFCEB" shape=document style=filled]
+	N2 [label="Data Source Integration" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N3 [label="Data Mart Design" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+	N4 [label="Prescriptive Analytics Implementation" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+	N5 [label="Data Storytelling for Business" color="#80DDEA" fillcolor="#D3F7F9" shape=preparation style=filled]
+	N6 [label="Data Security in BI" color="#80DDEA" fillcolor="#D3F7F9" shape=diamond style=filled]
+	N7 [label="Supply Chain Optimization" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+	N8 [label="Customer Behavior Insights" color="#80DDEA" fillcolor="#D3F7F9" shape=multipledocuments style=filled]
+	N9 [label="Data Lineage Tracking" color="#EAEFA5" fillcolor="#FDFCEB" shape=rectangle style=filled]
+	N10 [label="Sales Forecasting" color="#A2D0FF" fillcolor="#E8F0FF" shape=database style=filled]
+	S0 [label="" color="#80DDEA" fillcolor="#D3F7F9" 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]
+	S2 [label="" color="#EAEFA5" fillcolor="#FDFCEB" 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]
+	M2 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Master Data Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Master Data Management"
+		nest0_0 [label="Risk Assessment Reporting" color="#80DDEA" fillcolor="#D3F7F9" shape=rect style=filled]
+		nest0_1 [label="Actionable Insights Generation" color="#80DDEA" fillcolor="#D3F7F9" shape=inputoutput style=filled]
+		nest0_2 [label="Regulatory Compliance Reporting" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	}
+	subgraph cluster_Executive Summary Reporting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Executive Summary Reporting"
+		nest1_0 [label="Real_time BI Dashboards" color="#EAEFA5" fillcolor="#FDFCEB" shape=rectangle style=filled]
+		nest1_1 [label="Data Quality Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="supports" dir=forward]
+	N5 -> N6 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#EAEFA5" 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=dashed dir=forward]
+	N9 -> N10 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#EAEFA5" penwidth=1.5 style=solid label="manages" dir=forward]
+	N6 -> nest0_0 [color="#80DDEA" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	nest0_2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N3 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#EAEFA5" penwidth=1.5 style=solid label="monitors" dir=forward]
+	N4 -> S1 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#A2D0FF" penwidth=1.5 style=solid label="deploys" dir=forward]
+	S1 -> N7 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S2 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#A2D0FF" penwidth=1.5 style=dashed label="self_serves" dir=forward]
+	N0 -> M0 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N3 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N7 -> M2 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	M2 -> N9 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_201.txt b/test/diagrams/graph_hard/diagrams_201.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dce873de4d87101a1c88517455112b51bc9e49aa
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_201.txt
@@ -0,0 +1,36 @@
+<Backer Communication, connectedTo, Email List Building>
+<Backer Communication, connectedTo, Goal Setting>
+<Campaign Creation, connectedTo, International Crowdfunding>
+<Debt Crowdfunding, connectedTo, Platform Selection>
+<Donation_Based Crowdfunding, connectedTo, Investor Verification>
+<Email List Building, connectedTo, Donation_Based Crowdfunding>
+<Email List Building, connectedTo, Funding Period Management>
+<Email List Building, connectedTo, Logistics for Rewards>
+<Email List Building, connectedTo, Social Media Promotion>
+<Email List Building, connectedTo, Success Fee Structures>
+<Fulfillment Planning, connectedTo, Video Production for Campaigns>
+<Funding Period Management, connectedTo, Campaign Creation>
+<Goal Setting, connectedTo, Payment Processing>
+<Intellectual Property Protection, connectedTo, Logistics for Rewards>
+<Intellectual Property Protection, connectedTo, Social Media Promotion>
+<International Crowdfunding, connectedTo, Legal Compliance>
+<Investor Verification, connectedTo, Due Diligence for Projects>
+<Investor Verification, connectedTo, International Crowdfunding>
+<Investor Verification, connectedTo, Legal Compliance>
+<Investor Verification, connectedTo, Marketing Strategy>
+<Legal Compliance, connectedTo, Due Diligence for Projects>
+<Logistics for Rewards, connectedTo, Funding Period Management>
+<Marketing Strategy, connectedTo, Logistics for Rewards>
+<Payment Processing, connectedTo, Fulfillment Planning>
+<Platform Fee Management, connectedTo, Donation_Based Crowdfunding>
+<Platform Selection, connectedTo, Backer Communication>
+<Post_Campaign Updates, connectedTo, Project Vetting>
+<Project Vetting, connectedTo, International Crowdfunding>
+<Real Estate Crowdfunding, connectedTo, Shareholder Management>
+<Shareholder Management, connectedTo, Post_Campaign Updates>
+<Social Media Promotion, connectedTo, Logistics for Rewards>
+<Social Media Promotion, connectedTo, Platform Fee Management>
+<Social Media Promotion, connectedTo, Real Estate Crowdfunding>
+<Success Fee Structures, connectedTo, Intellectual Property Protection>
+<Success Fee Structures, measures success, Logistics for Rewards>
+<Video Production for Campaigns, connectedTo, Marketing Strategy>
diff --git a/test/diagrams/graph_hard/diagrams_203.dot b/test/diagrams/graph_hard/diagrams_203.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e7f18b09819d40ce6b93e8fb1566268cf612a110
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_203.dot
@@ -0,0 +1,84 @@
+digraph {
+	rankdir=LR
+	N0 [label="Blockchain for IoT Security" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+	N1 [label="Smart Manufacturing" color="#FFCC80" fillcolor="#FFF0CC" shape=database style=filled]
+	N2 [label="Data Processing at Edge" color="#FF8A65" fillcolor="#FBE9E7" shape=document style=filled]
+	N3 [label="Security Implementation" color="#E57373" fillcolor="#FFEBEE" shape=vnode_shape style=filled]
+	N4 [label="Agricultural IoT" color="#E57373" fillcolor="#FFEBEE" shape=hexagon style=filled]
+	N5 [label="Sensor Integration" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N6 [label="Interoperability Standards" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N7 [label="Over_the_Air Updates" color="#FFCC80" fillcolor="#FFF0CC" shape=predefinedprocess style=filled]
+	N8 [label="Edge Computing for IoT" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N9 [label="Retail IoT" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N10 [label="Transportation IoT" color="#FF8A65" fillcolor="#FBE9E7" shape=rectangle style=filled]
+	N11 [label="Smart City Sensors" color="#FFCC80" fillcolor="#FFF0CC" shape=hexagon style=filled]
+	N12 [label="Supply Chain Optimization" color="#FFCC80" fillcolor="#FFF0CC" shape=vnode_shape style=filled]
+	N13 [label="IoT Device Certification" color="#FF8A65" fillcolor="#FBE9E7" shape=predefinedprocess style=filled]
+	N14 [label="Network Protocol Selection" color="#E57373" fillcolor="#FFEBEE" shape=rect style=filled]
+	N15 [label="Data Privacy in IoT" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N16 [label="Remote Monitoring and Control" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N17 [label="Connected Vehicles" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+	N18 [label="Power Management for Devices" color="#FFCC80" fillcolor="#FFF0CC" shape=rectangle style=filled]
+	S0 [label="" color="#FF8A65" fillcolor="#FBE9E7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [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="#FF8A65" fillcolor="#FBE9E7" 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_Real_time Data Streaming {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Real_time Data Streaming"
+		nest0_0 [label="Asset Tracking" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+		nest0_1 [label="Healthcare IoT Devices" color="#FFCC80" fillcolor="#FFF0CC" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Compliance with IoT Regulations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Compliance with IoT Regulations"
+		nest1_0 [label="Data Analysis in Cloud" color="#FFCC80" fillcolor="#FFF0CC" shape=multipledocuments style=filled]
+		nest1_1 [label="Device Prototyping" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+		nest1_2 [label="Gateway Development" color="#FF8A65" fillcolor="#FBE9E7" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#FFCC80" penwidth=1.5 style=solid label="builds smart cities" dir=forward]
+	N13 -> N14 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N17 -> N18 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N6 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest1_0 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N3 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N8 -> S0 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N16 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N15 -> S1 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N18 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N17 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M0 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	M0 -> N16 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N6 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N15 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N18 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_222.dot b/test/diagrams/graph_hard/diagrams_222.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1529a6ec305123bb964e6b46a69b99587029b6f9
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_222.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=LR
+	N0 [label="FPGA Design" color="#2196F3" fillcolor="#BBDEFB" shape=document style=filled]
+	N1 [label="Intellectual Property Protection" color="#8C9EFF" fillcolor="#D3D7EB" shape=database style=filled]
+	N2 [label="Reliability Testing" color="#8C9EFF" fillcolor="#D3D7EB" shape=vnode_shape style=filled]
+	N3 [label="Mechanical Design Integration" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N4 [label="Prototyping" color="#2196F3" fillcolor="#BBDEFB" shape=predefinedprocess style=filled]
+	N5 [label="Mixed_Signal Design" color="#A188D0" fillcolor="#DACBE3" shape=rectangle style=filled]
+	N6 [label="PCB Layout" color="#2196F3" fillcolor="#BBDEFB" shape=document style=filled]
+	N7 [label="Test Fixture Design" color="#2196F3" fillcolor="#BBDEFB" shape=parallelogram style=filled]
+	N8 [label="Testing and Validation" color="#A188D0" fillcolor="#DACBE3" shape=preparation style=filled]
+	N9 [label="Circuit Design" color="#A188D0" fillcolor="#DACBE3" shape=parallelogram style=filled]
+	N10 [label="Power Integrity Analysis" color="#8C9EFF" fillcolor="#D3D7EB" shape=rect style=filled]
+	N11 [label="Documentation" color="#8C9EFF" fillcolor="#D3D7EB" shape=predefinedprocess style=filled]
+	N12 [label="Reverse Engineering" color="#2196F3" fillcolor="#BBDEFB" shape=rect style=filled]
+	N13 [label="Manufacturing Process Planning" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N14 [label="Material Selection" color="#8C9EFF" fillcolor="#D3D7EB" shape=action style=filled]
+	S0 [label="" color="#A188D0" fillcolor="#DACBE3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#8C9EFF" fillcolor="#D3D7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#2196F3" fillcolor="#BBDEFB" 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="Failure Analysis" color="#2196F3" fillcolor="#BBDEFB" shape=diamond style=filled]
+		nest0_1 [label="Thermal Management" color="#A188D0" fillcolor="#DACBE3" shape=multipledocuments style=filled]
+		nest0_2 [label="Assembly Line Optimization" color="#8C9EFF" fillcolor="#D3D7EB" shape=document style=filled]
+	}
+	subgraph cluster_High_Speed Digital Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="High_Speed Digital Design"
+		nest1_0 [label="Optical Module Design" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+		nest1_1 [label="Low_Power Design" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+		nest1_2 [label="Cable Management" color="#8C9EFF" fillcolor="#D3D7EB" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid label="creates documentation" dir=forward]
+	N11 -> N12 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest1_0 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#A188D0" penwidth=1.5 style=dashed label="designs optical systems" dir=forward]
+	N1 -> S1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	S1 -> N3 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N5 -> S2 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N9 -> M0 [color="#8C9EFF" penwidth=1.5 style=solid label="develops RF systems" dir=forward]
+	N2 -> M0 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N11 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_237.dot b/test/diagrams/graph_hard/diagrams_237.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f08d20b2da1bae6b59e94123cc74df5ecbcd6441
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_237.dot
@@ -0,0 +1,56 @@
+digraph {
+	rankdir=RL
+	N0 [label="Student Progress Tracking" color="#FFF8A6" fillcolor="#FFFDE0" shape=vnode_shape style=filled]
+	N1 [label="Discussion Forum Moderation" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N2 [label="Instructor Training" color="#00BCD4" fillcolor="#B2EBF2" shape=ellipse style=filled]
+	N3 [label="Virtual Classroom Facilitation" color="#FFD54F" fillcolor="#FFF8E1" shape=multipledocuments style=filled]
+	N4 [label="Bootcamp Development" color="#FFF8A6" fillcolor="#FFFDE0" shape=vnode_shape style=filled]
+	N5 [label="Digital Badges" color="#00BCD4" fillcolor="#B2EBF2" shape=rectangle style=filled]
+	N6 [label="Peer_to_Peer Learning" color="#00BCD4" fillcolor="#B2EBF2" shape=database style=filled]
+	N7 [label="Certification Issuance" color="#FFD54F" fillcolor="#FFF8E1" shape=inputoutput style=filled]
+	N8 [label="Curriculum Development" color="#FFF8A6" fillcolor="#FFFDE0" shape=predefinedprocess style=filled]
+	N9 [label="Blended Learning Models" color="#FFF8A6" fillcolor="#FFFDE0" shape=database 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]
+	S2 [label="" color="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Competency_Based Education {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Competency_Based Education"
+		nest0_0 [label="Open Educational Resources Integration" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+		nest0_1 [label="Accessibility Features" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	}
+	subgraph cluster_Accreditation Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Accreditation Management"
+		nest1_0 [label="Course Design" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+		nest1_1 [label="Language Learning Platforms" color="#00BCD4" fillcolor="#B2EBF2" shape=box 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="#00BCD4" penwidth=1.5 style=solid label="provides feedback" dir=forward]
+	N3 -> N4 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="secures platforms" dir=forward]
+	N5 -> N6 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFD54F" penwidth=1.5 style=solid label="facilitates discussions" dir=forward]
+	N7 -> N8 [color="#FFF8A6" penwidth=1.5 style=dashed label="administers assessments" dir=forward]
+	N8 -> N9 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N1 [color="#FFF8A6" penwidth=1.5 style=dashed label="uses adaptive systems" dir=forward]
+	nest1_0 -> nest1_1 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest1_0 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N9 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N6 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S1 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N0 -> S2 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	S2 -> N6 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	S2 -> N8 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_239.txt b/test/diagrams/graph_hard/diagrams_239.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9a3d5233c0d1bf40854d4abd74d12066e02e2a39
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_239.txt
@@ -0,0 +1,30 @@
+<Assessment Creation, connectedTo, Completion Rate Optimization>
+<Completion Rate Optimization, connectedTo, Global Accessibility Features>
+<Completion Rate Optimization, connectedTo, Learner Feedback Analysis>
+<Completion Rate Optimization, connectedTo, Micro_credential Stacking>
+<Completion Rate Optimization, connectedTo, Skill_Based Learning Outcomes>
+<Completion Rate Optimization, connectedTo, Specialization or Professional Certificate Programs>
+<Content Licensing, connectedTo, Continuous Course Improvement>
+<Content Licensing, connectedTo, Engagement Metrics Tracking>
+<Continuous Course Improvement, connectedTo, Course Promotion>
+<Corporate Training Solutions, connectedTo, Content Licensing>
+<Course Promotion, connectedTo, Corporate Training Solutions>
+<Engagement Metrics Tracking, connectedTo, Verified Track Management>
+<Global Accessibility Features, connectedTo, Learner Feedback Analysis>
+<Global Accessibility Features, connectedTo, Skill_Based Learning Outcomes>
+<Industry Collaboration for Content, connectedTo, University Partnerships>
+<Learner Feedback Analysis, connectedTo, Micro_credential Stacking>
+<Micro_credential Stacking, connectedTo, Content Licensing>
+<Micro_credential Stacking, connectedTo, Engagement Metrics Tracking>
+<Micro_credential Stacking, connectedTo, Specialization or Professional Certificate Programs>
+<Micro_credential Stacking, connectedTo, Technical Infrastructure for Scale>
+<Micro_credential Stacking, connectedTo, Verified Track Management>
+<Skill_Based Learning Outcomes, connectedTo, Learner Feedback Analysis>
+<Specialization or Professional Certificate Programs, connectedTo, Career Pathway Mapping>
+<Specialization or Professional Certificate Programs, connectedTo, Engagement Metrics Tracking>
+<Specialization or Professional Certificate Programs, connectedTo, Industry Collaboration for Content>
+<Specialization or Professional Certificate Programs, connectedTo, Technical Infrastructure for Scale>
+<Specialization or Professional Certificate Programs, connectedTo, Verified Track Management>
+<Technical Infrastructure for Scale, connectedTo, Content Licensing>
+<University Partnerships, connectedTo, Skill_Based Learning Outcomes>
+<Verified Track Management, connectedTo, Career Pathway Mapping>
diff --git a/test/diagrams/graph_hard/diagrams_245.txt b/test/diagrams/graph_hard/diagrams_245.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cc3c240ca3ce3355140144c2a719968fae7f95fd
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_245.txt
@@ -0,0 +1,37 @@
+<Accent Reduction Coaching, connectedTo, Speech Recognition Technology>
+<Accent Reduction Coaching, practices, Self_Study Modules>
+<Adult Language Learning, connectedTo, Travel Language Essentials>
+<Audio Lessons, connectedTo, Accent Reduction Coaching>
+<Audio Lessons, connectedTo, Self_Study Modules>
+<Business Language Training, connectedTo, Audio Lessons>
+<Gamified Learning Activities, connectedTo, Audio Lessons>
+<Gamified Learning Activities, connectedTo, Grammar Practice>
+<Gamified Learning Activities, connectedTo, Role_Playing Scenarios>
+<Gamified Learning Activities, connectedTo, Speaking Practice>
+<Gamified Learning Activities, connectedTo, Speech Recognition Technology>
+<Gamified Learning Activities, distributes, Listening Comprehension>
+<Gamified Learning Activities, publishes, Role_Playing Scenarios>
+<Grammar Practice, connectedTo, Role_Playing Scenarios>
+<Grammar Practice, connectedTo, Translation Exercises>
+<Instructor_Led Classes, connectedTo, Pronunciation Drills>
+<Listening Comprehension, connectedTo, Role_Playing Scenarios>
+<Personalized Learning Paths, connectedTo, Audio Lessons>
+<Pronunciation Drills, writes, Reading Comprehension>
+<Reading Comprehension, connectedTo, Business Language Training>
+<Self_Study Modules, analyzes, Role_Playing Scenarios>
+<Self_Study Modules, connectedTo, Grammar Practice>
+<Self_Study Modules, connectedTo, Listening Comprehension>
+<Self_Study Modules, connectedTo, Role_Playing Scenarios>
+<Self_Study Modules, connectedTo, Translation Exercises>
+<Speaking Practice, connectedTo, Adult Language Learning>
+<Speaking Practice, connectedTo, Audio Lessons>
+<Speaking Practice, connectedTo, Instructor_Led Classes>
+<Speaking Practice, connectedTo, Role_Playing Scenarios>
+<Speaking Practice, connectedTo, Self_Study Modules>
+<Speech Recognition Technology, connectedTo, Listening Comprehension>
+<Speech Recognition Technology, connectedTo, Self_Study Modules>
+<Speech Recognition Technology, connectedTo, Translation Exercises>
+<Translation Exercises, connectedTo, Listening Comprehension>
+<Translation Exercises, connectedTo, Role_Playing Scenarios>
+<Travel Language Essentials, translates, Personalized Learning Paths>
+<Vocabulary Acquisition, connectedTo, Gamified Learning Activities>
diff --git a/test/diagrams/graph_hard/diagrams_249.dot b/test/diagrams/graph_hard/diagrams_249.dot
new file mode 100644
index 0000000000000000000000000000000000000000..12dfc462da97c3fc72a59d79f970519b5dd5b4c5
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_249.dot
@@ -0,0 +1,65 @@
+digraph {
+	rankdir=RL
+	N0 [label="Dialectical Behavior Therapy" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N1 [label="Post_Traumatic Stress Disorder Support" color="#2196F3" fillcolor="#BBDEFB" shape=inputoutput style=filled]
+	N2 [label="Suicide Prevention" color="#61CAC3" fillcolor="#C2E8E6" shape=action style=filled]
+	N3 [label="Telehealth Counseling" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	N4 [label="Medication Management" color="#FFE69C" fillcolor="#FFF9D4" shape=rectangle style=filled]
+	N5 [label="Grief Counseling" color="#2196F3" fillcolor="#BBDEFB" shape=document style=filled]
+	S0 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#61CAC3" fillcolor="#C2E8E6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Mindfulness Practice {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mindfulness Practice"
+		nest0_0 [label="Support Group Facilitation" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+		nest0_1 [label="Psychiatric Evaluation" color="#61CAC3" fillcolor="#C2E8E6" shape=rectangle style=filled]
+		nest0_2 [label="Music Therapy" color="#FFE69C" fillcolor="#FFF9D4" shape=diamond style=filled]
+		nest0_3 [label="Trauma Therapy" color="#FFE69C" fillcolor="#FFF9D4" shape=rect style=filled]
+	}
+	subgraph cluster_Bipolar Disorder Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Bipolar Disorder Management"
+		nest1_0 [label="Recreational Therapy" color="#2196F3" fillcolor="#BBDEFB" shape=action style=filled]
+		nest1_1 [label="Cognitive Behavioral Therapy" color="#FFE69C" fillcolor="#FFF9D4" shape=document style=filled]
+		nest1_2 [label="Stress Reduction Techniques" color="#61CAC3" fillcolor="#C2E8E6" shape=hexagon style=filled]
+		nest1_3 [label="Treatment Plan Development" color="#61CAC3" fillcolor="#C2E8E6" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#61CAC3" 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=dashed dir=forward]
+	N4 -> N5 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed label="audits" dir=forward]
+	N2 -> nest0_0 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N5 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest1_0 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N2 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N0 -> S2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N2 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N4 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N4 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	M2 -> N4 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_255.dot b/test/diagrams/graph_hard/diagrams_255.dot
new file mode 100644
index 0000000000000000000000000000000000000000..38b0ac97577a424359bb6441fed4fe5d4821c999
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_255.dot
@@ -0,0 +1,64 @@
+digraph {
+	rankdir=TB
+	N0 [label="Community Fitness Challenges" color="#4FC3F7" fillcolor="#E1F5FE" shape=hexagon style=filled]
+	N1 [label="Wearable Fitness Devices" color="#E57373" fillcolor="#FFEBEE" shape=vnode_shape style=filled]
+	N2 [label="Senior Fitness Programs" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N3 [label="Strength Training" color="#FFCC7A" fillcolor="#FFF6D9" shape=document style=filled]
+	N4 [label="Pilates Instruction" color="#FFCC7A" fillcolor="#FFF6D9" shape=rect style=filled]
+	N5 [label="Cross_Training" color="#E57373" fillcolor="#FFEBEE" shape=rect style=filled]
+	N6 [label="Fitness Assessment" color="#FFCC7A" fillcolor="#FFF6D9" shape=rect style=filled]
+	N7 [label="Online Fitness Coaching" color="#E57373" fillcolor="#FFEBEE" shape=inputoutput style=filled]
+	N8 [label="Outdoor Fitness Activities" color="#E57373" fillcolor="#FFEBEE" shape=action style=filled]
+	N9 [label="Weightlifting Techniques" color="#FFCC7A" fillcolor="#FFF6D9" shape=preparation style=filled]
+	N10 [label="Personalized Exercise Prescriptions" color="#E57373" fillcolor="#FFEBEE" shape=inputoutput style=filled]
+	S1 [label="" color="#FFCC7A" fillcolor="#FFF6D9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#4FC3F7" fillcolor="#E1F5FE" 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="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Corporate Wellness Programs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Corporate Wellness Programs"
+		nest0_0 [label="Biometric Feedback Integration" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+		nest0_1 [label="Nutrition for Fitness" color="#E57373" fillcolor="#FFEBEE" shape=action style=filled]
+		nest0_2 [label="Fitness Equipment Maintenance" color="#FFCC7A" fillcolor="#FFF6D9" shape=rectangle style=filled]
+	}
+	subgraph cluster_Balance and Coordination {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Balance and Coordination"
+		nest1_0 [label="Home Workout Programs" color="#4FC3F7" fillcolor="#E1F5FE" shape=document style=filled]
+		nest1_1 [label="Workout Tracking Apps" color="#FFCC7A" fillcolor="#FFF6D9" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFCC7A" penwidth=1.5 style=dashed label="certifies" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#4FC3F7" penwidth=1.5 style=dashed label="advises" dir=forward]
+	nest0_0 -> nest0_1 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N10 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N2 -> S2 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#FFCC7A" penwidth=1.5 style=solid label="predicts" dir=forward]
+	S2 -> N9 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N8 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_259.dot b/test/diagrams/graph_hard/diagrams_259.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5d2f6f1e48ff3d8aa0f61cfa1edf7288e9efafe2
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_259.dot
@@ -0,0 +1,66 @@
+digraph {
+	rankdir=BT
+	N0 [label="Textile and Fabric Selection" color="#7986CB" fillcolor="#E8EAF6" shape=predefinedprocess style=filled]
+	N1 [label="Mood Board Creation" color="#7E57C2" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N2 [label="Living Room Design" color="#7986CB" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N3 [label="Residential Interior Design" color="#7986CB" fillcolor="#E8EAF6" shape=document style=filled]
+	N4 [label="Concept Development" color="#7E57C2" fillcolor="#D1C4E9" shape=database style=filled]
+	N5 [label="Office Space Design" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	N6 [label="Building Code Compliance" color="#7E57C2" fillcolor="#D1C4E9" shape=database style=filled]
+	N7 [label="Hospitality Interior Design" color="#FF9800" fillcolor="#FFE0B2" shape=vnode_shape style=filled]
+	N8 [label="Commercial Interior Design" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N9 [label="Wall Treatment Selection" color="#7E57C2" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N10 [label="Universal Design Principles" color="#7E57C2" fillcolor="#D1C4E9" shape=document style=filled]
+	N11 [label="Budget Management" color="#7986CB" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N12 [label="Construction Documentation" color="#7E57C2" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N13 [label="Bathroom Design" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	S1 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Ventilation Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ventilation Planning"
+		nest0_0 [label="Acoustic Treatment" color="#FF9800" fillcolor="#FFE0B2" shape=vnode_shape style=filled]
+		nest0_1 [label="Sustainable Design Practices" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+		nest0_2 [label="Space Planning" color="#FF9800" fillcolor="#FFE0B2" shape=ellipse style=filled]
+	}
+	subgraph cluster_Retail Interior Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Retail Interior Design"
+		nest1_0 [label="Furniture Selection" color="#7986CB" fillcolor="#E8EAF6" shape=diamond style=filled]
+		nest1_1 [label="CAD Drafting" color="#FF9800" fillcolor="#FFE0B2" shape=hexagon style=filled]
+		nest1_2 [label="3D Rendering" color="#FF9800" fillcolor="#FFE0B2" shape=database style=filled]
+		nest1_3 [label="Site Measurement" color="#7986CB" fillcolor="#E8EAF6" shape=document style=filled]
+	}
+	N0 -> N1 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="styles" dir=forward]
+	N2 -> N3 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#7E57C2" 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="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N11 -> nest1_0 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N2 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S1 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N5 [color="#7986CB" penwidth=1.5 style=solid label="lights" dir=forward]
+	N1 -> nest1_3 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest1_1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N8 -> N7 [color="#000000" penwidth=1.5 style=solid label="spaces" dir=forward]
+	nest0_0 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N12 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_263.txt b/test/diagrams/graph_hard/diagrams_263.txt
new file mode 100644
index 0000000000000000000000000000000000000000..64021a26d46e44c7e614be3cb20b749b33d4dac9
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_263.txt
@@ -0,0 +1,33 @@
+<API Integration for Translation Services, connectedTo, Contextual Understanding>
+<Contextual Understanding, connectedTo, Machine Translation Engine>
+<Continuous Learning Models for Translation, connectedTo, Custom Vocabulary Integration>
+<Continuous Learning Models for Translation, connectedTo, Medical Translation>
+<Continuous Learning Models for Translation, connectedTo, Speech Recognition>
+<Continuous Learning Models for Translation, learns, Contextual Understanding>
+<Continuous Learning Models for Translation, tracks, Statistical Machine Translation>
+<Cross_Lingual Communication, connectedTo, Subtitling Generation>
+<Custom Vocabulary Integration, connectedTo, Medical Translation>
+<Customer Support Translation, connectedTo, Voice Biometrics>
+<Low_Latency Processing, connectedTo, Data Security for Translated Content>
+<Machine Translation Engine, connectedTo, Meeting Translation Systems>
+<Machine Translation Engine, connectedTo, Statistical Machine Translation>
+<Medical Translation, connectedTo, Text_to_Speech Synthesis>
+<Meeting Translation Systems, connectedTo, Statistical Machine Translation>
+<Neural Machine Translation, connectedTo, Text_to_Speech Synthesis>
+<Noise Reduction for Speech Input, connectedTo, Neural Machine Translation>
+<Real_Time Document Translation, connectedTo, Cross_Lingual Communication>
+<Social Media Translation, connectedTo, Real_Time Document Translation>
+<Speech Recognition, connectedTo, API Integration for Translation Services>
+<Speech Recognition, supports, Wearable Translation Devices>
+<Statistical Machine Translation, connectedTo, Low_Latency Processing>
+<Subtitling Generation, connectedTo, API Integration for Translation Services>
+<Subtitling Generation, connectedTo, Contextual Understanding>
+<Subtitling Generation, connectedTo, Low_Latency Processing>
+<Subtitling Generation, connectedTo, Speech Recognition>
+<Subtitling Generation, connectedTo, Statistical Machine Translation>
+<Subtitling Generation, connects, Meeting Translation Systems>
+<Text_to_Speech Synthesis, connectedTo, Customer Support Translation>
+<Text_to_Speech Synthesis, connectedTo, Statistical Machine Translation>
+<Text_to_Speech Synthesis, connectedTo, Subtitling Generation>
+<Voice Biometrics, connectedTo, Noise Reduction for Speech Input>
+<Wearable Translation Devices, connectedTo, Social Media Translation>
diff --git a/test/diagrams/graph_hard/diagrams_265.dot b/test/diagrams/graph_hard/diagrams_265.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c24da23c0778f3927b4438875f7889415868981a
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_265.dot
@@ -0,0 +1,53 @@
+digraph {
+	rankdir=RL
+	N0 [label="Counter_Drone Systems" color="#FF9800" fillcolor="#FFE0B2" shape=parallelogram style=filled]
+	N1 [label="Videography" color="#8C9EFF" fillcolor="#D3D7EB" shape=rectangle style=filled]
+	N2 [label="Flight Planning Software" color="#8C9EFF" fillcolor="#D3D7EB" shape=rect style=filled]
+	N3 [label="Drone Regulations Compliance" color="#BDAFA8" fillcolor="#E4E0DF" shape=rectangle style=filled]
+	N4 [label="Remote Piloting Training" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	N5 [label="Delivery Services" color="#8C9EFF" fillcolor="#D3D7EB" shape=vnode_shape style=filled]
+	N6 [label="Swarm Robotics for Drones" color="#FF9800" fillcolor="#FFE0B2" shape=rectangle style=filled]
+	N7 [label="Ground Control Station Development" color="#FF9800" fillcolor="#FFE0B2" shape=action style=filled]
+	N8 [label="Geofencing Implementation" color="#FF9800" fillcolor="#FFE0B2" shape=inputoutput style=filled]
+	N9 [label="Propulsion System Development" color="#BDAFA8" fillcolor="#E4E0DF" shape=diamond style=filled]
+	N10 [label="Inspection" color="#8C9EFF" fillcolor="#D3D7EB" shape=rectangle style=filled]
+	subgraph cluster_Battery Management System {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Battery Management System"
+		nest0_0 [label="Wildlife Tracking" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+		nest0_1 [label="Flight Control System" color="#8C9EFF" fillcolor="#D3D7EB" shape=diamond style=filled]
+	}
+	subgraph cluster_Autonomous Flight {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Autonomous Flight"
+		nest1_0 [label="Navigation System" color="#BDAFA8" fillcolor="#E4E0DF" shape=vnode_shape style=filled]
+		nest1_1 [label="Urban Air Mobility Planning" color="#8C9EFF" fillcolor="#D3D7EB" shape=diamond 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N10 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest1_0 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N5 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed label="receives" dir=forward]
+	N3 -> N1 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest1_0 [color="#BDAFA8" penwidth=1.5 style=dashed label="automates" dir=forward]
+	N4 -> N6 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_1 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N8 -> N7 [color="#BDAFA8" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N10 -> N3 [color="#000000" penwidth=1.5 style=solid label="trains" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_265.txt b/test/diagrams/graph_hard/diagrams_265.txt
new file mode 100644
index 0000000000000000000000000000000000000000..79ce141dd925f18510acc04b0a826a2395c56cb5
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_265.txt
@@ -0,0 +1,25 @@
+<Counter_Drone Systems, connectedTo, Videography>
+<Delivery Services, connectedTo, Swarm Robotics for Drones>
+<Drone Regulations Compliance, connectedTo, Remote Piloting Training>
+<Drone Regulations Compliance, connectedTo, Videography>
+<Flight Control System, connectedTo, Inspection>
+<Flight Planning Software, connectedTo, Delivery Services>
+<Flight Planning Software, connectedTo, Drone Regulations Compliance>
+<Flight Planning Software, connectedTo, Wildlife Tracking>
+<Geofencing Implementation, analyzes, Ground Control Station Development>
+<Geofencing Implementation, connectedTo, Propulsion System Development>
+<Ground Control Station Development, connectedTo, Geofencing Implementation>
+<Ground Control Station Development, receives, Urban Air Mobility Planning>
+<Inspection, trains, Drone Regulations Compliance>
+<Navigation System, connectedTo, Urban Air Mobility Planning>
+<Propulsion System Development, connectedTo, Inspection>
+<Propulsion System Development, connectedTo, Navigation System>
+<Remote Piloting Training, connectedTo, Delivery Services>
+<Remote Piloting Training, connectedTo, Swarm Robotics for Drones>
+<Swarm Robotics for Drones, automates, Navigation System>
+<Swarm Robotics for Drones, connectedTo, Ground Control Station Development>
+<Urban Air Mobility Planning, connectedTo, Ground Control Station Development>
+<Videography, connectedTo, Flight Control System>
+<Videography, connectedTo, Flight Planning Software>
+<Videography, connectedTo, Navigation System>
+<Wildlife Tracking, connectedTo, Flight Control System>
diff --git a/test/diagrams/graph_hard/diagrams_266.txt b/test/diagrams/graph_hard/diagrams_266.txt
new file mode 100644
index 0000000000000000000000000000000000000000..af5ac66c4e7762f92eda036284562c333e896949
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_266.txt
@@ -0,0 +1,35 @@
+<3D Modeling from Drone Data, connectedTo, Swarm Robotics for Drones>
+<Aerial Photography, connectedTo, Collision Avoidance Systems>
+<Aerial Photography, connectedTo, Drone Data Security>
+<Battery Management System, connectedTo, Payload Customization>
+<Collision Avoidance Systems, connectedTo, Mapping and Surveying>
+<Collision Avoidance Systems, connectedTo, Propeller Design>
+<Counter_Drone Systems, analyzes, Remote Piloting Training>
+<Drone Data Security, connectedTo, Drone Regulations Compliance>
+<Drone Maintenance, connectedTo, Flight Planning Software>
+<Drone Regulations Compliance, connectedTo, Battery Management System>
+<Drone Regulations Compliance, connectedTo, Propeller Design>
+<Drone Regulations Compliance, connectedTo, Remote Piloting Training>
+<Environmental Monitoring, connectedTo, Counter_Drone Systems>
+<Environmental Monitoring, connectedTo, Ground Control Station Development>
+<Flight Control System, connectedTo, Flight Planning Software>
+<Flight Planning Software, connectedTo, Propeller Design>
+<Flight Planning Software, navigates, 3D Modeling from Drone Data>
+<Geofencing Implementation, connectedTo, Propeller Design>
+<Ground Control Station Development, connectedTo, Payload Integration>
+<Mapping and Surveying, connectedTo, Geofencing Implementation>
+<Navigation System, connectedTo, Aerial Photography>
+<Navigation System, connectedTo, Collision Avoidance Systems>
+<Payload Customization, connectedTo, Collision Avoidance Systems>
+<Payload Customization, connectedTo, Environmental Monitoring>
+<Payload Integration, connectedTo, Flight Control System>
+<Propulsion System Development, educates, Collision Avoidance Systems>
+<Remote Piloting Training, connectedTo, Collision Avoidance Systems>
+<Remote Piloting Training, connectedTo, Mapping and Surveying>
+<Remote Piloting Training, connectedTo, Propulsion System Development>
+<Search and Rescue Operations, connectedTo, Wildlife Tracking>
+<Swarm Robotics for Drones, connectedTo, Search and Rescue Operations>
+<Swarm Robotics for Drones, monitors, Urban Air Mobility Planning>
+<Urban Air Mobility Planning, connectedTo, Navigation System>
+<Videography, connectedTo, Drone Maintenance>
+<Wildlife Tracking, connectedTo, Flight Planning Software>
diff --git a/test/diagrams/graph_hard/diagrams_268.txt b/test/diagrams/graph_hard/diagrams_268.txt
new file mode 100644
index 0000000000000000000000000000000000000000..88657c9d0bc34c350ca81eb84a4e1f43f462ef5d
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_268.txt
@@ -0,0 +1,32 @@
+<Adaptive Cruise Control, connectedTo, Hardware Design>
+<Adaptive Cruise Control, connectedTo, Vehicle Diagnostics>
+<Automatic Emergency Braking, connectedTo, Vehicle Diagnostics>
+<Battery Management for EVs, connectedTo, Cloud Connectivity for AVs>
+<Charging Infrastructure, connectedTo, Battery Management for EVs>
+<Charging Infrastructure, connectedTo, Redundancy in Sensors>
+<Cloud Connectivity for AVs, connectedTo, Perception System>
+<Data Collection and Annotation, connectedTo, Perception System>
+<Decision_Making Algorithms, connectedTo, Insurance Models for AVs>
+<Decision_Making Algorithms, connectedTo, Over_the_Air Updates>
+<Decision_Making Algorithms, connectedTo, Vehicle Diagnostics>
+<Decision_Making Algorithms, optimizes, Automatic Emergency Braking>
+<Driver Monitoring Systems, connectedTo, Predictive Maintenance>
+<Fleet Management, connectedTo, Driver Monitoring Systems>
+<Hardware Design, connectedTo, Pedestrian Detection>
+<Hardware Design, connectedTo, Simulation and Testing>
+<Hardware Design, connectedTo, Vehicle Diagnostics>
+<Insurance Models for AVs, connectedTo, Over_the_Air Updates>
+<Motion Control, connectedTo, Charging Infrastructure>
+<Pedestrian Detection, connectedTo, Motion Control>
+<Pedestrian Detection, connectedTo, Vehicle Diagnostics>
+<Perception System, connectedTo, Decision_Making Algorithms>
+<Predictive Maintenance, connectedTo, Redundancy in Sensors>
+<Redundancy in Sensors, connectedTo, Battery Management for EVs>
+<Redundancy in Sensors, connectedTo, Cloud Connectivity for AVs>
+<Redundancy in Sensors, connectedTo, Decision_Making Algorithms>
+<Redundancy in Sensors, connectedTo, Remote Operation Capability>
+<Remote Operation Capability, connectedTo, Battery Management for EVs>
+<Simulation and Testing, connectedTo, Fleet Management>
+<Traffic Sign Recognition, connectedTo, Data Collection and Annotation>
+<Vehicle Diagnostics, connectedTo, Traffic Sign Recognition>
+<Vehicle Diagnostics, designs, Insurance Models for AVs>
diff --git a/test/diagrams/graph_hard/diagrams_270.txt b/test/diagrams/graph_hard/diagrams_270.txt
new file mode 100644
index 0000000000000000000000000000000000000000..138d616aa0c882881255a56f33c9e3d3f97de0f7
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_270.txt
@@ -0,0 +1,32 @@
+<Accident Reconstruction for AVs, connectedTo, Adaptive Cruise Control>
+<Accident Reconstruction for AVs, connectedTo, Decision_Making Algorithms>
+<Accident Reconstruction for AVs, connectedTo, Object Detection and Classification>
+<Adaptive Cruise Control, connectedTo, Cloud Connectivity for AVs>
+<Adaptive Cruise Control, connectedTo, Human_Machine Interface>
+<Adaptive Cruise Control, maps, Regulatory Compliance>
+<Automatic Emergency Braking, connectedTo, Object Detection and Classification>
+<Automatic Emergency Braking, connectedTo, Remote Operation Capability>
+<Automatic Emergency Braking, transports, Adaptive Cruise Control>
+<Cloud Connectivity for AVs, connectedTo, Regulatory Compliance>
+<Data Collection and Annotation, connectedTo, Sensor Integration>
+<Decision_Making Algorithms, diagnoses, Driver Monitoring Systems>
+<Driver Monitoring Systems, connectedTo, Traffic Sign Recognition>
+<Ethical Decision_Making, connectedTo, Data Collection and Annotation>
+<Hardware Design, connectedTo, Cloud Connectivity for AVs>
+<Object Detection and Classification, connectedTo, Adaptive Cruise Control>
+<Over_the_Air Updates, connectedTo, Accident Reconstruction for AVs>
+<Over_the_Air Updates, connectedTo, Automatic Emergency Braking>
+<Over_the_Air Updates, connectedTo, Cloud Connectivity for AVs>
+<Over_the_Air Updates, connectedTo, Human_Machine Interface>
+<Pedestrian Detection, connectedTo, Adaptive Cruise Control>
+<Pedestrian Detection, connectedTo, Object Detection and Classification>
+<Pedestrian Detection, plans, Public Acceptance and Trust>
+<Public Acceptance and Trust, connectedTo, Over_the_Air Updates>
+<Regulatory Compliance, connectedTo, Ethical Decision_Making>
+<Regulatory Compliance, connectedTo, Human_Machine Interface>
+<Remote Operation Capability, connectedTo, Accident Reconstruction for AVs>
+<Remote Operation Capability, connectedTo, Adaptive Cruise Control>
+<Remote Operation Capability, connectedTo, Object Detection and Classification>
+<Sensor Integration, connectedTo, Hardware Design>
+<Traffic Sign Recognition, connectedTo, Vehicle Diagnostics>
+<Vehicle Diagnostics, connectedTo, Cloud Connectivity for AVs>
diff --git a/test/diagrams/graph_hard/diagrams_273.txt b/test/diagrams/graph_hard/diagrams_273.txt
new file mode 100644
index 0000000000000000000000000000000000000000..db4839877a5a9e636bf872ebe4f8be99f2988ae1
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_273.txt
@@ -0,0 +1,35 @@
+<Bike_sharing Services, connectedTo, Car_sharing Services>
+<Bike_sharing Services, connectedTo, Route Optimization>
+<Bike_sharing Services, connectedTo, User Registration>
+<Car_sharing Services, connectedTo, Passenger Safety Protocols>
+<Charging or Refueling Logistics, connectedTo, Bike_sharing Services>
+<Charging or Refueling Logistics, connectedTo, Micro_mobility Management>
+<Charging or Refueling Logistics, connectedTo, User Onboarding>
+<Customer Support, connectedTo, Geofencing for Operations>
+<Customer Support, verifies, Charging or Refueling Logistics>
+<Data Analytics for Usage Patterns, connectedTo, Micro_mobility Management>
+<Driver Management, connectedTo, Charging or Refueling Logistics>
+<Dynamic Pricing, connectedTo, Bike_sharing Services>
+<Dynamic Pricing, connectedTo, Charging or Refueling Logistics>
+<Dynamic Pricing, connectedTo, Driver Management>
+<Geofencing for Operations, connectedTo, Charging or Refueling Logistics>
+<Geofencing for Operations, connectedTo, Payment Processing>
+<Micro_mobility Management, connectedTo, Bike_sharing Services>
+<Micro_mobility Management, connectedTo, Route Optimization>
+<Parking Integration, connectedTo, Customer Support>
+<Parking Integration, connectedTo, Route Optimization>
+<Parking Integration, connectedTo, Sustainability Initiatives>
+<Payment Processing, connectedTo, Dynamic Pricing>
+<Payment Processing, connectedTo, Route Optimization>
+<Regulatory Compliance, connectedTo, Data Analytics for Usage Patterns>
+<Route Optimization, connectedTo, Car_sharing Services>
+<Smart City Integration, connectedTo, Driver Management>
+<Sustainability Initiatives, connectedTo, Vehicle Booking>
+<Ticketing and Fare Collection, connectedTo, Charging or Refueling Logistics>
+<Ticketing and Fare Collection, connectedTo, Geofencing for Operations>
+<Ticketing and Fare Collection, connectedTo, Parking Integration>
+<Ticketing and Fare Collection, connectedTo, Passenger Safety Protocols>
+<Ticketing and Fare Collection, connectedTo, Route Optimization>
+<User Onboarding, connectedTo, Smart City Integration>
+<User Registration, connectedTo, Route Optimization>
+<Vehicle Booking, connectedTo, Regulatory Compliance>
diff --git a/test/diagrams/graph_hard/diagrams_275.dot b/test/diagrams/graph_hard/diagrams_275.dot
new file mode 100644
index 0000000000000000000000000000000000000000..990652ebff82778c17d820ea066665112bf7492b
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_275.dot
@@ -0,0 +1,63 @@
+digraph {
+	rankdir=TB
+	N0 [label="License Plate Recognition" color="#AB47BC" fillcolor="#F3E5F5" shape=preparation style=filled]
+	N1 [label="Maintenance of Systems" color="#A1887F" fillcolor="#EFEBE9" shape=box style=filled]
+	N2 [label="Navigation to Open Space" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N3 [label="Real_Time Information Display" color="#4FC3F7" fillcolor="#E1F5FE" shape=rect style=filled]
+	N4 [label="Space Detection" color="#4FC3F7" fillcolor="#E1F5FE" shape=inputoutput style=filled]
+	N5 [label="On_Street Parking Management" color="#A1887F" fillcolor="#EFEBE9" shape=hexagon style=filled]
+	N6 [label="Emergency Vehicle Access Management" color="#A1887F" fillcolor="#EFEBE9" shape=rectangle style=filled]
+	N7 [label="Cloud_based Parking Platforms" color="#AB47BC" fillcolor="#F3E5F5" shape=action style=filled]
+	N8 [label="Environmental Impact Monitoring" color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+	S0 [label="" color="#AB47BC" fillcolor="#F3E5F5" 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]
+	M1 [label="" color="#A1887F" fillcolor="#EFEBE9" 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_Billing and Reconciliation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Billing and Reconciliation"
+		nest0_0 [label="Violation Detection" color="#4FC3F7" fillcolor="#E1F5FE" shape=document style=filled]
+		nest0_1 [label="IoT Sensors for Parking" color="#A1887F" fillcolor="#EFEBE9" shape=hexagon style=filled]
+		nest0_2 [label="User Experience Design for Apps" color="#A1887F" fillcolor="#EFEBE9" shape=vnode_shape style=filled]
+		nest0_3 [label="Data Analytics for Parking Usage" color="#A1887F" fillcolor="#EFEBE9" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Mobile Parking Apps {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mobile Parking Apps"
+		nest1_0 [label="Demand Forecasting" color="#A1887F" fillcolor="#EFEBE9" shape=preparation style=filled]
+		nest1_1 [label="Enforcement and Fines Management" color="#4FC3F7" fillcolor="#E1F5FE" shape=rect style=filled]
+		nest1_2 [label="Permit Management" color="#4FC3F7" fillcolor="#E1F5FE" shape=database style=filled]
+	}
+	N0 -> N1 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N7 [color="#4FC3F7" 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="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest1_0 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N0 -> S1 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N3 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#AB47BC" penwidth=1.5 style=solid label="licenses" dir=forward]
+	S1 -> N4 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	M2 -> N5 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_275.txt b/test/diagrams/graph_hard/diagrams_275.txt
new file mode 100644
index 0000000000000000000000000000000000000000..bd1f937c1ec1e3d7216a0c5312ac0e625c97d2fe
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_275.txt
@@ -0,0 +1,25 @@
+<Cloud_based Parking Platforms, connectedTo, Environmental Impact Monitoring>
+<Data Analytics for Parking Usage, connectedTo, Cloud_based Parking Platforms>
+<Demand Forecasting, connectedTo, Enforcement and Fines Management>
+<Emergency Vehicle Access Management, connectedTo, Cloud_based Parking Platforms>
+<Enforcement and Fines Management, connectedTo, Permit Management>
+<IoT Sensors for Parking, connectedTo, User Experience Design for Apps>
+<License Plate Recognition, connectedTo, Maintenance of Systems>
+<License Plate Recognition, connectedTo, On_Street Parking Management>
+<License Plate Recognition, connectedTo, Real_Time Information Display>
+<License Plate Recognition, connectedTo, Space Detection>
+<License Plate Recognition, licenses, Emergency Vehicle Access Management>
+<Maintenance of Systems, connectedTo, Navigation to Open Space>
+<Maintenance of Systems, connectedTo, Real_Time Information Display>
+<Navigation to Open Space, connectedTo, Emergency Vehicle Access Management>
+<Navigation to Open Space, connectedTo, Environmental Impact Monitoring>
+<Navigation to Open Space, connectedTo, On_Street Parking Management>
+<Navigation to Open Space, connectedTo, Real_Time Information Display>
+<On_Street Parking Management, connectedTo, Emergency Vehicle Access Management>
+<On_Street Parking Management, connectedTo, Violation Detection>
+<Permit Management, connectedTo, Navigation to Open Space>
+<Real_Time Information Display, connectedTo, Demand Forecasting>
+<Real_Time Information Display, connectedTo, Space Detection>
+<Space Detection, connectedTo, On_Street Parking Management>
+<User Experience Design for Apps, connectedTo, Data Analytics for Parking Usage>
+<Violation Detection, communicates, IoT Sensors for Parking>
diff --git a/test/diagrams/graph_hard/diagrams_28.dot b/test/diagrams/graph_hard/diagrams_28.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a8f02f33850fcc2b6454e4dad5e978b69ba2139f
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_28.dot
@@ -0,0 +1,60 @@
+digraph {
+	rankdir=BT
+	N0 [label="Payment Received" color="#80DDEA" fillcolor="#D3F7F9" shape=multipledocuments style=filled]
+	N1 [label="MMS Transmission" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N2 [label="Device Setup" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+	N3 [label="Mobile Top_up" color="#80DDEA" fillcolor="#D3F7F9" shape=vnode_shape style=filled]
+	N4 [label="Service Activation Request" color="#FFD54F" fillcolor="#FFF8E1" shape=diamond style=filled]
+	N5 [label="Base Station Installation" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	N6 [label="Service Complaint" color="#FF9800" fillcolor="#FFE0B2" shape=hexagon style=filled]
+	N7 [label="Billing Inquiry" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+	N8 [label="Plan Renewal" color="#80DDEA" fillcolor="#D3F7F9" shape=predefinedprocess style=filled]
+	N9 [label="Data Usage Logging" color="#80DDEA" fillcolor="#D3F7F9" shape=parallelogram style=filled]
+	N10 [label="Issue Resolution" color="#FF9800" fillcolor="#FFE0B2" shape=inputoutput style=filled]
+	S1 [label="" color="#80DDEA" fillcolor="#D3F7F9" 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_Network Security Monitoring {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Network Security Monitoring"
+		nest0_0 [label="Troubleshooting Guide" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+		nest0_1 [label="Bandwidth Allocation" color="#80DDEA" fillcolor="#D3F7F9" shape=preparation style=filled]
+		nest0_2 [label="Service Level Agreement" color="#FFD54F" fillcolor="#FFF8E1" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_SIM Registration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="SIM Registration"
+		nest1_0 [label="Contract Termination" color="#FF9800" fillcolor="#FFE0B2" shape=predefinedprocess style=filled]
+		nest1_1 [label="Network Activation" color="#FF9800" fillcolor="#FFE0B2" shape=database style=filled]
+		nest1_2 [label="Antenna Maintenance" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+	}
+	N0 -> N1 [color="#FFD54F" 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="#FF9800" penwidth=1.5 style=dashed label="activates" dir=forward]
+	N4 -> N5 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFD54F" 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=solid dir=forward]
+	N3 -> nest0_0 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N4 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest1_0 [color="#FFD54F" penwidth=1.5 style=solid label="resolves" dir=forward]
+	nest1_2 -> N5 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	M1 -> N9 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest1_2 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N2 -> N9 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N9 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_28.txt b/test/diagrams/graph_hard/diagrams_28.txt
new file mode 100644
index 0000000000000000000000000000000000000000..94009283487467623ee3b1d3483d24cbc17103e1
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_28.txt
@@ -0,0 +1,26 @@
+<Antenna Maintenance, connectedTo, Base Station Installation>
+<Bandwidth Allocation, connectedTo, Service Level Agreement>
+<Base Station Installation, connectedTo, Service Complaint>
+<Billing Inquiry, connectedTo, Data Usage Logging>
+<Billing Inquiry, connectedTo, Issue Resolution>
+<Billing Inquiry, connectedTo, Plan Renewal>
+<Contract Termination, connectedTo, Network Activation>
+<Data Usage Logging, connectedTo, Antenna Maintenance>
+<Data Usage Logging, connectedTo, Billing Inquiry>
+<Data Usage Logging, connectedTo, Issue Resolution>
+<Data Usage Logging, resolves, Contract Termination>
+<Device Setup, connectedTo, Data Usage Logging>
+<Device Setup, connectedTo, Mobile Top_up>
+<MMS Transmission, connectedTo, Data Usage Logging>
+<MMS Transmission, connectedTo, Device Setup>
+<Mobile Top_up, activates, Service Activation Request>
+<Mobile Top_up, connectedTo, Troubleshooting Guide>
+<Network Activation, connectedTo, Antenna Maintenance>
+<Payment Received, connectedTo, MMS Transmission>
+<Plan Renewal, connectedTo, Data Usage Logging>
+<Service Activation Request, connectedTo, Base Station Installation>
+<Service Activation Request, connectedTo, Data Usage Logging>
+<Service Complaint, connectedTo, Billing Inquiry>
+<Service Complaint, connectedTo, Data Usage Logging>
+<Service Level Agreement, connectedTo, Service Activation Request>
+<Troubleshooting Guide, connectedTo, Bandwidth Allocation>
diff --git a/test/diagrams/graph_hard/diagrams_280.dot b/test/diagrams/graph_hard/diagrams_280.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bd9efc060f0a455a6affbe25c75bd509284980f2
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_280.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=BT
+	N0 [label="Blockchain for Voting" color="#BCB88A" fillcolor="#F5F5DC" shape=parallelogram style=filled]
+	N1 [label="Threat Modeling" color="#AABEC6" fillcolor="#E0E6E9" shape=preparation style=filled]
+	N2 [label="Optical Scan Systems" color="#AABEC6" fillcolor="#E0E6E9" shape=diamond style=filled]
+	N3 [label="Transparency" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N4 [label="Cybersecurity for Voting Systems" color="#BCB88A" fillcolor="#F5F5DC" shape=rect style=filled]
+	N5 [label="Election Official Training" color="#FFC107" fillcolor="#FFECB3" shape=document style=filled]
+	N6 [label="Direct Recording Electronic Systems" color="#FFC107" fillcolor="#FFECB3" shape=rectangle style=filled]
+	N7 [label="Auditability" color="#AABEC6" fillcolor="#E0E6E9" shape=rectangle style=filled]
+	N8 [label="Remote Voting Solutions" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+	N9 [label="Accessibility Features" color="#FFC107" fillcolor="#FFECB3" shape=action style=filled]
+	N10 [label="Hardware Tamper Detection" color="#BCB88A" fillcolor="#F5F5DC" shape=rectangle style=filled]
+	N11 [label="Legal Framework Compliance" color="#FFC107" fillcolor="#FFECB3" shape=hexagon style=filled]
+	N12 [label="System Certification" color="#FFC107" fillcolor="#FFECB3" shape=parallelogram style=filled]
+	N13 [label="Voter Privacy Protection" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+	N14 [label="Post_Election Audits" color="#AABEC6" fillcolor="#E0E6E9" shape=document style=filled]
+	N15 [label="Voting Machine Design" color="#AABEC6" fillcolor="#E0E6E9" shape=multipledocuments style=filled]
+	N16 [label="Results Aggregation" color="#FFC107" fillcolor="#FFECB3" shape=diamond style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#AABEC6" fillcolor="#E0E6E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFC107" fillcolor="#FFECB3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Risk Management for Elections {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Risk Management for Elections"
+		nest0_0 [label="Voter Authentication" color="#AABEC6" fillcolor="#E0E6E9" shape=rectangle style=filled]
+		nest0_1 [label="Undue Influence Prevention" color="#BCB88A" fillcolor="#F5F5DC" shape=database style=filled]
+		nest0_2 [label="Voter Registration" color="#FFC107" fillcolor="#FFECB3" shape=parallelogram style=filled]
+		nest0_3 [label="Cryptographic Security" color="#FFC107" fillcolor="#FFECB3" shape=action style=filled]
+	}
+	subgraph cluster_Online Voting Systems {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Online Voting Systems"
+		nest1_0 [label="Zero_Knowledge Proofs for Privacy" color="#FFC107" fillcolor="#FFECB3" shape=rectangle style=filled]
+		nest1_1 [label="Vote Counting" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+		nest1_2 [label="Voter Education Programs" color="#BCB88A" fillcolor="#F5F5DC" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#BCB88A" 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=solid 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="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#AABEC6" 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=solid dir=forward]
+	N10 -> N11 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N2 [color="#BCB88A" 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest1_0 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N6 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S0 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N13 -> S1 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	M1 -> N16 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_295.txt b/test/diagrams/graph_hard/diagrams_295.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d1bf0d3cc9350c14a4cb9bf1705c492e7f7c0e43
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_295.txt
@@ -0,0 +1,39 @@
+<Augmented Reality Experiences, connectedTo, Visitor Flow Analysis>
+<Collection Digitization, connectedTo, Digital Storytelling>
+<Community Engagement Platforms, connectedTo, RFID for Object Tracking>
+<Crowdsourcing for Collections, connectedTo, Conservation Technology>
+<Cybersecurity for Museum Data, connectedTo, Crowdsourcing for Collections>
+<Database Management, connectedTo, Conservation Technology>
+<Database Management, connectedTo, Interactive Kiosks>
+<Database Management, exhibits, Cybersecurity for Museum Data>
+<Digital Signage, connectedTo, Cybersecurity for Museum Data>
+<Digital Signage, connectedTo, Digital Storytelling>
+<Digital Storytelling, connectedTo, Conservation Technology>
+<Digital Storytelling, connectedTo, Crowdsourcing for Collections>
+<Digital Storytelling, connectedTo, Cybersecurity for Museum Data>
+<Digital Storytelling, connectedTo, Wayfinding Systems>
+<Educational Technology Integration, connectedTo, Augmented Reality Experiences>
+<Gamification of Museum Experiences, connectedTo, Ticketing and Visitor Systems>
+<Interactive Kiosks, connectedTo, Research Databases Access>
+<Member Management Systems, connectedTo, Cybersecurity for Museum Data>
+<Member Management Systems, connectedTo, Digital Signage>
+<Predictive Maintenance for Tech, connectedTo, Virtual Reality Experiences>
+<RFID for Object Tracking, connectedTo, Soundscape Design>
+<RFID for Object Tracking, connectedTo, User Experience Design>
+<Research Databases Access, connectedTo, Gamification of Museum Experiences>
+<Soundscape Design, connectedTo, Conservation Technology>
+<Soundscape Design, maintains, Educational Technology Integration>
+<Soundscape Design, personalizes, Predictive Maintenance for Tech>
+<Ticketing and Visitor Systems, analyzes, Member Management Systems>
+<Ticketing and Visitor Systems, connectedTo, Cybersecurity for Museum Data>
+<User Experience Design, connectedTo, Visitor Analytics>
+<Virtual Reality Experiences, connectedTo, Conservation Technology>
+<Virtual Reality Experiences, connectedTo, Crowdsourcing for Collections>
+<Virtual Reality Experiences, connectedTo, Digital Storytelling>
+<Virtual Reality Experiences, connectedTo, Interactive Kiosks>
+<Virtual Reality Experiences, connectedTo, Wayfinding Systems>
+<Virtual Reality Experiences, tracks, Database Management>
+<Visitor Analytics, connectedTo, Gamification of Museum Experiences>
+<Visitor Flow Analysis, connectedTo, Collection Digitization>
+<Wayfinding Systems, connectedTo, Conservation Technology>
+<Wayfinding Systems, connectedTo, Cybersecurity for Museum Data>
diff --git a/test/diagrams/graph_hard/diagrams_301.txt b/test/diagrams/graph_hard/diagrams_301.txt
new file mode 100644
index 0000000000000000000000000000000000000000..69552c61cb3ec1cebae43475a0a170ccd14312f8
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_301.txt
@@ -0,0 +1,27 @@
+<Cold Case Review, connectedTo, Courtroom Presentation>
+<Courtroom Presentation, connectedTo, Document Examination>
+<Data Recovery, connectedTo, Forensic Psychology>
+<Data Recovery, connectedTo, Handwriting Analysis>
+<Data Recovery, investigates, Forensic Photography>
+<Document Examination, connectedTo, Expert Witness Testimony>
+<Expert Witness Testimony, connectedTo, Forensic Botany>
+<Expert Witness Testimony, connectedTo, Forensic Photography>
+<Expert Witness Testimony, connectedTo, Handwriting Analysis>
+<Expert Witness Testimony, connectedTo, Toxicology Testing>
+<Expert Witness Testimony, connectedTo, Voice Recognition>
+<Fingerprint Analysis, connectedTo, Chain of Custody Management>
+<Forensic Botany, connectedTo, Chain of Custody Management>
+<Forensic Entomology, connectedTo, Cold Case Review>
+<Forensic Photography, connectedTo, Voice Recognition>
+<Forensic Psychology, connectedTo, Expert Witness Testimony>
+<Forensic Psychology, connectedTo, Forensic Entomology>
+<Forensic Psychology, connectedTo, Forensic Photography>
+<Handwriting Analysis, autopsies, Voice Recognition>
+<Handwriting Analysis, connectedTo, Forensic Photography>
+<Handwriting Analysis, connectedTo, Toolmark Analysis>
+<Handwriting Analysis, examines, Forensic Botany>
+<Handwriting Analysis, researches, Chain of Custody Management>
+<Toolmark Analysis, connectedTo, Fingerprint Analysis>
+<Toxicology Testing, connectedTo, Forensic Photography>
+<Toxicology Testing, connectedTo, Handwriting Analysis>
+<Voice Recognition, connectedTo, Forensic Botany>
diff --git a/test/diagrams/graph_hard/diagrams_303.txt b/test/diagrams/graph_hard/diagrams_303.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b4f40801bcadb62b63ed67f019645a5355692b54
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_303.txt
@@ -0,0 +1,33 @@
+<Arson Investigation, connectedTo, Fingerprint Analysis>
+<Ballistics Analysis, connectedTo, Forensic Accounting>
+<Bloodstain Pattern Analysis, connectedTo, Ballistics Analysis>
+<Chain of Custody Management, connectedTo, Forensic Botany>
+<Crime Database Search, connectedTo, Cyber Crime Investigation>
+<Crime Database Search, connectedTo, Document Examination>
+<Crime Database Search, connectedTo, Forensic Psychology>
+<Cyber Crime Investigation, connectedTo, Legal Standards Compliance>
+<Digital Forensics, connectedTo, Cyber Crime Investigation>
+<Digital Forensics, connectedTo, Document Examination>
+<Digital Forensics, connectedTo, Expert Witness Testimony>
+<Digital Forensics, connectedTo, Laboratory Analysis>
+<Document Examination, connectedTo, Chain of Custody Management>
+<Expert Witness Testimony, connectedTo, Fingerprint Analysis>
+<Fingerprint Analysis, connectedTo, Chain of Custody Management>
+<Fingerprint Analysis, connectedTo, Crime Database Search>
+<Fingerprint Analysis, connectedTo, Document Examination>
+<Fingerprint Analysis, connectedTo, Forensic Botany>
+<Fingerprint Analysis, connectedTo, Legal Standards Compliance>
+<Forensic Accounting, connectedTo, Mobile Device Forensics>
+<Forensic Botany, connectedTo, Forensic Entomology>
+<Forensic Botany, connectedTo, Legal Standards Compliance>
+<Forensic Botany, connectedTo, Malware Analysis>
+<Forensic Psychology, connectedTo, Toxicology Testing>
+<Laboratory Analysis, connectedTo, Expert Witness Testimony>
+<Legal Standards Compliance, connectedTo, Forensic Entomology>
+<Malware Analysis, connectedTo, Bloodstain Pattern Analysis>
+<Malware Analysis, connectedTo, Cyber Crime Investigation>
+<Mobile Device Forensics, connectedTo, Laboratory Analysis>
+<Network Forensics, connectedTo, Digital Forensics>
+<Network Forensics, connectedTo, Expert Witness Testimony>
+<Toxicology Testing, connectedTo, Vehicle Forensics>
+<Vehicle Forensics, connectedTo, Arson Investigation>
diff --git a/test/diagrams/graph_hard/diagrams_313.dot b/test/diagrams/graph_hard/diagrams_313.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9a6e3eeb328b8a6ad0aa399fdfec6e5db05f0251
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_313.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=RL
+	N0 [label="Freshwater Conservation" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N1 [label="Grassland Conservation" color="#A188D0" fillcolor="#DACBE3" shape=multipledocuments style=filled]
+	N2 [label="Law Enforcement" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N3 [label="Ecological Survey" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+	N4 [label="Anti_Poaching Operations" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N5 [label="Satellite Tracking of Animals" color="#7E57C2" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N6 [label="Rewilding Initiatives" color="#A188D0" fillcolor="#DACBE3" shape=rectangle style=filled]
+	N7 [label="Carbon Sequestration in Habitats" color="#FFC107" fillcolor="#FFECB3" shape=vnode_shape style=filled]
+	N8 [label="Policy Advocacy" color="#FFC107" fillcolor="#FFECB3" shape=action style=filled]
+	N9 [label="Drone_based Monitoring" color="#A188D0" fillcolor="#DACBE3" shape=vnode_shape style=filled]
+	N10 [label="Captive Breeding Programs" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	N11 [label="Forestry Practices for Conservation" color="#FFC107" fillcolor="#FFECB3" shape=action style=filled]
+	N12 [label="Sustainable Resource Management" color="#FFC107" fillcolor="#FFECB3" shape=preparation style=filled]
+	N13 [label="Fundraising for Conservation" color="#7E57C2" fillcolor="#D1C4E9" shape=rect style=filled]
+	N14 [label="Wetland Restoration" color="#A188D0" fillcolor="#DACBE3" shape=rectangle style=filled]
+	N15 [label="Ecosystem Services Valuation" color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+	N16 [label="Protected Area Management" color="#FFC107" fillcolor="#FFECB3" shape=rect style=filled]
+	S0 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFC107" fillcolor="#FFECB3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Community Engagement {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Community Engagement"
+		nest0_0 [label="Wildlife Rescue and Rehabilitation" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+		nest0_1 [label="Conservation Education" color="#FFC107" fillcolor="#FFECB3" shape=multipledocuments style=filled]
+		nest0_2 [label="International Treaties Enforcement" color="#A188D0" fillcolor="#DACBE3" shape=predefinedprocess style=filled]
+		nest0_3 [label="GIS Mapping for Habitats" color="#7E57C2" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Population Dynamics Study {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Population Dynamics Study"
+		nest1_0 [label="Species Monitoring" color="#FFC107" fillcolor="#FFECB3" shape=inputoutput style=filled]
+		nest1_1 [label="Invasive Species Control" color="#FFC107" fillcolor="#FFECB3" shape=document style=filled]
+		nest1_2 [label="Human_Wildlife Conflict Mitigation" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+		nest1_3 [label="Pollution Impact Assessment" color="#A188D0" fillcolor="#DACBE3" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFC107" penwidth=1.5 style=dashed label="habitats_preserves" dir=forward]
+	N9 -> N10 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#7E57C2" 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=dashed dir=forward]
+	N14 -> N15 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N13 -> nest0_0 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N9 [color="#FFC107" penwidth=1.5 style=solid label="partners" dir=forward]
+	nest1_0 -> nest1_1 [color="#7E57C2" penwidth=1.5 style=dashed label="rehabilitates" dir=forward]
+	nest1_1 -> nest1_2 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N12 -> nest1_0 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N3 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N6 -> S0 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N15 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> S1 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#7E57C2" penwidth=1.5 style=solid label="researches" dir=forward]
+	M1 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_336.dot b/test/diagrams/graph_hard/diagrams_336.dot
new file mode 100644
index 0000000000000000000000000000000000000000..92a924ad77ba23dd9c8af16cdcd00fb5f8536529
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_336.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=LR
+	N0 [label="IT Operations Automation" color="#6FE1D5" fillcolor="#C9EFEC" shape=preparation style=filled]
+	N1 [label="Finance Process Automation" color="#6FE1D5" fillcolor="#C9EFEC" shape=parallelogram style=filled]
+	N2 [label="Error Handling in Automation" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N3 [label="Decision Automation" color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N4 [label="Automated Data Validation" color="#673AB7" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N5 [label="Audit Trail for Automation" color="#673AB7" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N6 [label="Business Process Management" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+	N7 [label="Optical Character Recognition for Automation" color="#673AB7" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N8 [label="User Training for Automated Systems" color="#673AB7" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N9 [label="Process Mining" color="#FF5722" fillcolor="#FFCCBC" shape=database style=filled]
+	N10 [label="Chatbot Integration" color="#FF5722" fillcolor="#FFCCBC" shape=inputoutput style=filled]
+	N11 [label="Process Mapping" color="#673AB7" fillcolor="#D1C4E9" shape=action style=filled]
+	N12 [label="Orchestration of Processes" color="#FF5722" fillcolor="#FFCCBC" shape=diamond style=filled]
+	S0 [label="" color="#6FE1D5" fillcolor="#C9EFEC" 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]
+	M1 [label="" color="#6FE1D5" fillcolor="#C9EFEC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Change Management for Automation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Change Management for Automation"
+		nest0_0 [label="Performance Monitoring of Bots" color="#6FE1D5" fillcolor="#C9EFEC" shape=hexagon style=filled]
+		nest0_1 [label="Return on Investment Calculation" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram style=filled]
+		nest0_2 [label="Robotic Process Automation Implementation" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+		nest0_3 [label="Intelligent Automation" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	}
+	subgraph cluster_Automation Opportunity Identification {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Automation Opportunity Identification"
+		nest1_0 [label="Customer Service Automation" color="#673AB7" fillcolor="#D1C4E9" shape=rect style=filled]
+		nest1_1 [label="Scripting for Automation" color="#FF5722" fillcolor="#FFCCBC" shape=database style=filled]
+	}
+	N0 -> N1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#673AB7" penwidth=1.5 style=solid label="errors_detects" dir=forward]
+	N8 -> N9 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N11 -> nest0_0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N11 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest1_0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#6FE1D5" penwidth=1.5 style=dashed label="reduces_costs" dir=forward]
+	S0 -> N11 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#FF5722" penwidth=1.5 style=solid label="increases_efficiency" dir=forward]
+	N4 -> M1 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N8 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_34.dot b/test/diagrams/graph_hard/diagrams_34.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1039494574a0320fac3d6550c1dc881bf9d77cc2
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_34.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=RL
+	N0 [label="Visa Application" color="#AB47BC" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N1 [label="Hotel Check_in" color="#FFE470" fillcolor="#FFFAE0" shape=parallelogram style=filled]
+	N2 [label="Language Translation Service" color="#607D8B" fillcolor="#CFD8DC" shape=database style=filled]
+	N3 [label="Tourist Information Desk" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+	N4 [label="Loyalty Program Enrollment" color="#AB47BC" fillcolor="#F3E5F5" shape=rect style=filled]
+	N5 [label="Lost and Found Service" color="#607D8B" fillcolor="#CFD8DC" shape=action style=filled]
+	N6 [label="Historical Site Exploration" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N7 [label="Group Tour Coordination" color="#FFE470" fillcolor="#FFFAE0" shape=document style=filled]
+	S0 [label="" color="#FFE470" fillcolor="#FFFAE0" 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="#FFE470" fillcolor="#FFFAE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFE470" fillcolor="#FFFAE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#607D8B" fillcolor="#CFD8DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Sightseeing Scheduling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Sightseeing Scheduling"
+		nest0_0 [label="Itinerary Planning" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+		nest0_1 [label="Event Reservation" color="#FFE470" fillcolor="#FFFAE0" shape=hexagon style=filled]
+		nest0_2 [label="Flight Booking" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+		nest0_3 [label="Passport Renewal Assistance" color="#FFE470" fillcolor="#FFFAE0" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Currency Exchange {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Currency Exchange"
+		nest1_0 [label="Custom Tour Package Creation" color="#607D8B" fillcolor="#CFD8DC" shape=inputoutput style=filled]
+		nest1_1 [label="Travel Blog Creation" color="#AB47BC" fillcolor="#F3E5F5" shape=rect style=filled]
+		nest1_2 [label="Trip Sharing" color="#AB47BC" fillcolor="#F3E5F5" shape=database style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#607D8B" penwidth=1.5 style=solid label="entertains" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFE470" penwidth=1.5 style=dashed label="automates" dir=forward]
+	nest0_1 -> nest0_2 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N5 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest1_0 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N1 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#AB47BC" penwidth=1.5 style=solid label="promotes" dir=forward]
+	N4 -> S2 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N6 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N6 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#607D8B" 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/graph_hard/diagrams_348.dot b/test/diagrams/graph_hard/diagrams_348.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b360e9a1f01e2d2b1d47d9ba259cb0d6aed7dba0
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_348.dot
@@ -0,0 +1,67 @@
+digraph {
+	rankdir=LR
+	N0 [label="Game Server Management" color="#F06292" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	N1 [label="Fan Community Building" color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N2 [label="Gaming Hardware Optimization" color="#388E3C" fillcolor="#F1F8E9" shape=preparation style=filled]
+	N3 [label="Training Regimen" color="#388E3C" fillcolor="#F1F8E9" shape=document style=filled]
+	N4 [label="Brand Partnerships" color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N5 [label="Social Media Management" color="#388E3C" fillcolor="#F1F8E9" shape=document style=filled]
+	N6 [label="Game Publisher Relations" color="#673AB7" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+	N7 [label="Ticketing Sales" color="#388E3C" fillcolor="#F1F8E9" shape=vnode_shape style=filled]
+	N8 [label="Talent Representation" color="#673AB7" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N9 [label="Venue Setup" color="#F06292" fillcolor="#FCE4EC" shape=inputoutput 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="#388E3C" fillcolor="#F1F8E9" 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]
+	subgraph cluster_Esports Education Programs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Esports Education Programs"
+		nest0_0 [label="Coaching Staff Management" color="#388E3C" fillcolor="#F1F8E9" shape=predefinedprocess style=filled]
+		nest0_1 [label="Anti_Cheat Measures" color="#F06292" fillcolor="#FCE4EC" shape=document style=filled]
+		nest0_2 [label="Player Scouting" color="#388E3C" fillcolor="#F1F8E9" shape=rect style=filled]
+	}
+	subgraph cluster_Content Creation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Content Creation"
+		nest1_0 [label="Media Rights Negotiation" color="#F06292" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+		nest1_1 [label="Live Streaming Production" color="#F06292" fillcolor="#FCE4EC" shape=database style=filled]
+		nest1_2 [label="Legal Advisory for Esports" color="#388E3C" fillcolor="#F1F8E9" shape=vnode_shape style=filled]
+		nest1_3 [label="Team Management" color="#F06292" fillcolor="#FCE4EC" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#388E3C" 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="#F06292" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#673AB7" penwidth=1.5 style=solid label="trains" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#673AB7" 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="#388E3C" penwidth=1.5 style=dashed label="health_supports" dir=forward]
+	N4 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed label="develops_games" dir=forward]
+	nest0_2 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid label="advertises" dir=forward]
+	nest1_2 -> nest1_3 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest1_0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N3 [color="#F06292" penwidth=1.5 style=dashed label="plays" dir=forward]
+	N2 -> S0 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=solid label="organizes" dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_358.dot b/test/diagrams/graph_hard/diagrams_358.dot
new file mode 100644
index 0000000000000000000000000000000000000000..078fc591ed691b3e7f3b8c21244e1d0e4175f4b0
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_358.dot
@@ -0,0 +1,62 @@
+digraph {
+	rankdir=RL
+	N0 [label="Virtual Labs" color="#E91E63" fillcolor="#F8BBD0" shape=diamond style=filled]
+	N1 [label="Adaptive Learning Systems" color="#4CAF50" fillcolor="#C8E6C9" shape=database style=filled]
+	N2 [label="Blockchain for Educational Credentials" color="#4CAF50" fillcolor="#C8E6C9" shape=database style=filled]
+	N3 [label="EdTech Hardware Solutions" color="#4285F4" fillcolor="#D0E0F8" shape=inputoutput style=filled]
+	N4 [label="Personalized Learning Paths" color="#E91E63" fillcolor="#F8BBD0" shape=action style=filled]
+	N5 [label="Educational Data Mining" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	N6 [label="Student Performance Tracking" color="#4CAF50" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	N7 [label="Competency_Based Learning Platforms" color="#4CAF50" fillcolor="#C8E6C9" shape=action style=filled]
+	N8 [label="Simulations for Learning" color="#4CAF50" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N9 [label="Student Information Systems" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	N10 [label="Open Educational Resources" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+	S1 [label="" color="#4285F4" fillcolor="#D0E0F8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#4285F4" fillcolor="#D0E0F8" 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_Collaborative Learning Platforms {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Collaborative Learning Platforms"
+		nest0_0 [label="Formative Assessment Tools" color="#4CAF50" fillcolor="#C8E6C9" shape=rectangle style=filled]
+		nest0_1 [label="Virtual Reality in Education" color="#4CAF50" fillcolor="#C8E6C9" shape=action style=filled]
+		nest0_2 [label="Educational Apps Development" color="#4CAF50" fillcolor="#C8E6C9" shape=action style=filled]
+		nest0_3 [label="Massive Open Online Courses" color="#4285F4" fillcolor="#D0E0F8" shape=action style=filled]
+	}
+	subgraph cluster_Assessment Tools {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Assessment Tools"
+		nest1_0 [label="Curriculum Digitization" color="#4285F4" fillcolor="#D0E0F8" shape=preparation style=filled]
+		nest1_1 [label="E_Learning Platform Design" color="#E91E63" fillcolor="#F8BBD0" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#E91E63" 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=dashed dir=forward]
+	N5 -> N6 [color="#4CAF50" penwidth=1.5 style=solid label="experiences_personalizes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#E91E63" penwidth=1.5 style=solid label="licenses" dir=forward]
+	nest0_1 -> nest0_2 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest0_0 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N6 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#4CAF50" penwidth=1.5 style=solid label="AI_applies" dir=forward]
+	S1 -> N9 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N8 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N4 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_37.dot b/test/diagrams/graph_hard/diagrams_37.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f79e9ceb1e4098d0e2cfbfe40b014a3552aa888a
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_37.dot
@@ -0,0 +1,69 @@
+digraph {
+	rankdir=TB
+	N0 [label="Loan Pre_Approval" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+	N1 [label="Escrow Setup" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+	N2 [label="Property Management" color="#E57373" fillcolor="#FFEBEE" shape=diamond style=filled]
+	N3 [label="Open House Event" color="#E57373" fillcolor="#FFEBEE" shape=rect style=filled]
+	N4 [label="Offer Submission" color="#7E57C2" fillcolor="#EDE7F6" shape=preparation style=filled]
+	N5 [label="HOA Management" color="#7E57C2" fillcolor="#EDE7F6" shape=parallelogram style=filled]
+	N6 [label="Land Acquisition" color="#CD8FF2" fillcolor="#ECCFF5" shape=inputoutput style=filled]
+	N7 [label="Buyer Inquiry" color="#E57373" fillcolor="#FFEBEE" shape=action style=filled]
+	N8 [label="Commission Distribution" color="#E57373" fillcolor="#FFEBEE" shape=predefinedprocess style=filled]
+	N9 [label="Rental Agreement" color="#CD8FF2" fillcolor="#ECCFF5" shape=multipledocuments style=filled]
+	N10 [label="Contract Review" color="#CD8FF2" fillcolor="#ECCFF5" shape=preparation style=filled]
+	N11 [label="Eviction Process" color="#CD8FF2" fillcolor="#ECCFF5" shape=inputoutput style=filled]
+	N12 [label="Investment Property Analysis" color="#E57373" fillcolor="#FFEBEE" shape=predefinedprocess style=filled]
+	S0 [label="" color="#E57373" fillcolor="#FFEBEE" 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]
+	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]
+	M2 [label="" color="#CD8FF2" fillcolor="#ECCFF5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Ownership Transfer {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ownership Transfer"
+		nest0_0 [label="Closing Meeting" color="#7E57C2" fillcolor="#EDE7F6" shape=multipledocuments style=filled]
+		nest0_1 [label="Market Trend Analysis" color="#CD8FF2" fillcolor="#ECCFF5" shape=multipledocuments style=filled]
+	}
+	subgraph cluster_Mortgage Application Assistance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mortgage Application Assistance"
+		nest1_0 [label="Price Negotiation" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+		nest1_1 [label="Property Listing" color="#E57373" fillcolor="#FFEBEE" shape=action 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="#E57373" penwidth=1.5 style=solid label="closes" 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=solid dir=forward]
+	N6 -> N7 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_0 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N2 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#7E57C2" penwidth=1.5 style=solid label="inspects" dir=forward]
+	nest1_1 -> N11 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#CD8FF2" penwidth=1.5 style=dashed label="advertises" dir=forward]
+	N8 -> M1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	M1 -> N10 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_63.dot b/test/diagrams/graph_hard/diagrams_63.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e14749fda02c9d4905a7e6d9f923340e5cd5b640
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_63.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=BT
+	N0 [label="Third_Party Administrator Liaison" color="#BCB88A" fillcolor="#F5F5DC" shape=inputoutput style=filled]
+	N1 [label="Agent Training" color="#BCB88A" fillcolor="#F5F5DC" shape=preparation style=filled]
+	N2 [label="Broker Management" color="#61CAC3" fillcolor="#C2E8E6" shape=vnode_shape style=filled]
+	N3 [label="Underwriting" color="#61CAC3" fillcolor="#C2E8E6" shape=action style=filled]
+	N4 [label="Healthcare Provider Network Management" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+	N5 [label="Risk Assessment" color="#5C6BC0" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N6 [label="Loss Prevention" color="#5C6BC0" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N7 [label="Telematics Data Analysis" color="#5C6BC0" fillcolor="#E8EAF6" shape=action style=filled]
+	N8 [label="Payment Processing" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+	N9 [label="Customer Onboarding" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+	N10 [label="Subrogation" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N11 [label="Business Interruption Coverage" color="#5C6BC0" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N12 [label="Claims Litigation Management" color="#BCB88A" fillcolor="#F5F5DC" shape=document style=filled]
+	N13 [label="Claim Adjustment" color="#BCB88A" fillcolor="#F5F5DC" shape=diamond style=filled]
+	N14 [label="Policy Cancellation" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N15 [label="Compliance Reporting" color="#61CAC3" fillcolor="#C2E8E6" shape=document style=filled]
+	N16 [label="Coverage Review" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N17 [label="Fraud Investigation" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N18 [label="Life Insurance Underwriting" color="#BCB88A" fillcolor="#F5F5DC" shape=preparation style=filled]
+	N19 [label="Premium Calculation" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+	N20 [label="Legal Review of Claims" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" 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]
+	M1 [label="" color="#61CAC3" fillcolor="#C2E8E6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Customer Support {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Customer Support"
+		nest0_0 [label="Customer Communication" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+		nest0_1 [label="Claim Submission" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	}
+	subgraph cluster_Cyber Insurance Policy {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cyber Insurance Policy"
+		nest1_0 [label="Policy Issuance" color="#61CAC3" fillcolor="#C2E8E6" shape=predefinedprocess style=filled]
+		nest1_1 [label="Property Damage Assessment" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" 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]
+	N10 -> N11 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#61CAC3" penwidth=1.5 style=dashed label="investigates" dir=forward]
+	N12 -> N13 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N17 -> N18 [color="#BCB88A" penwidth=1.5 style=solid label="pays" dir=forward]
+	N18 -> N19 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N19 -> N20 [color="#BCB88A" penwidth=1.5 style=dashed label="processes" dir=forward]
+	nest0_0 -> nest0_1 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N19 [color="#61CAC3" penwidth=1.5 style=dashed label="regulates" dir=forward]
+	nest1_0 -> nest1_1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest1_0 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N8 [color="#000000" penwidth=1.5 style=dashed label="assesses" dir=forward]
+	N0 -> S0 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#5C6BC0" penwidth=1.5 style=solid label="audits" dir=forward]
+	S0 -> N2 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N5 -> S1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N20 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	S1 -> N17 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> M1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N19 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_66.dot b/test/diagrams/graph_hard/diagrams_66.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6a99dbecb32317e3414668357ecb0749d8b410ef
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_66.dot
@@ -0,0 +1,67 @@
+digraph {
+	rankdir=BT
+	N0 [label="Web Application Firewall Deployment" color="#FFB74D" fillcolor="#FFF3E0" shape=action style=filled]
+	N1 [label="Network Security" color="#FFB74D" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N2 [label="Threat Detection" color="#FFB74D" fillcolor="#FFF3E0" shape=action style=filled]
+	N3 [label="Dark Web Monitoring" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N4 [label="Endpoint Protection" color="#AB47BC" fillcolor="#F3E5F5" shape=diamond style=filled]
+	N5 [label="Identity Management" color="#AB47BC" fillcolor="#F3E5F5" shape=diamond style=filled]
+	N6 [label="Security Patch Management" color="#AB47BC" fillcolor="#F3E5F5" shape=parallelogram style=filled]
+	N7 [label="Threat Intelligence Gathering" color="#FFB74D" fillcolor="#FFF3E0" shape=preparation style=filled]
+	N8 [label="Security Policy Development" color="#AB47BC" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	S0 [label="" color="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFB74D" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#AB47BC" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#AB47BC" fillcolor="#F3E5F5" 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_Security Awareness Training {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Security Awareness Training"
+		nest0_0 [label="Disaster Recovery Planning" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+		nest0_1 [label="Cloud Security" color="#FFB74D" fillcolor="#FFF3E0" shape=action style=filled]
+		nest0_2 [label="Security Audit" color="#FFA726" fillcolor="#FFF3E0" shape=rectangle style=filled]
+		nest0_3 [label="Zero Trust Architecture" color="#FFA726" fillcolor="#FFF3E0" shape=database style=filled]
+	}
+	subgraph cluster_Supply Chain Security {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Supply Chain Security"
+		nest1_0 [label="Backup and Recovery" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+		nest1_1 [label="IoT Security" color="#AB47BC" fillcolor="#F3E5F5" shape=diamond style=filled]
+		nest1_2 [label="Malware Analysis" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N4 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	S1 -> N3 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N3 -> S2 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	S2 -> N6 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N6 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N8 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_7.dot b/test/diagrams/graph_hard/diagrams_7.dot
new file mode 100644
index 0000000000000000000000000000000000000000..30b882b7f8003eb57af3c16d95029ebc03f3a355
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_7.dot
@@ -0,0 +1,71 @@
+digraph {
+	rankdir=BT
+	N0 [label="Logistics Planning" color="#607D8B" fillcolor="#CFD8DC" shape=preparation style=filled]
+	N1 [label="Design Review" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	N2 [label="Procurement" color="#607D8B" fillcolor="#CFD8DC" shape=parallelogram style=filled]
+	N3 [label="Workflow Optimization" color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N4 [label="Automated Assembly" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N5 [label="Shipping" color="#FBC02D" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N6 [label="Environmental Compliance" color="#7E57C2" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N7 [label="Quality Control" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	N8 [label="Tool Path Generation" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N9 [label="Ergonomics Assessment" color="#7E57C2" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N10 [label="Serialization" color="#607D8B" fillcolor="#CFD8DC" shape=action style=filled]
+	S0 [label="" color="#607D8B" fillcolor="#CFD8DC" 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="#607D8B" fillcolor="#CFD8DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Supplier Qualification {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Supplier Qualification"
+		nest0_0 [label="Production Scheduling" color="#7E57C2" fillcolor="#D1C4E9" shape=diamond style=filled]
+		nest0_1 [label="Inventory Check" color="#607D8B" fillcolor="#CFD8DC" shape=predefinedprocess style=filled]
+		nest0_2 [label="Batch Tracking" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+		nest0_3 [label="Inspection" color="#607D8B" fillcolor="#CFD8DC" shape=ellipse style=filled]
+	}
+	subgraph cluster_Component Sourcing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Component Sourcing"
+		nest1_0 [label="Final Testing" color="#607D8B" fillcolor="#CFD8DC" shape=rect style=filled]
+		nest1_1 [label="Storage" color="#607D8B" fillcolor="#CFD8DC" shape=parallelogram style=filled]
+		nest1_2 [label="Factory Layout Planning" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	}
+	N0 -> N1 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#607D8B" penwidth=1.5 style=dashed label="cleans" dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N6 [color="#607D8B" 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="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest1_0 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N1 [color="#607D8B" penwidth=1.5 style=solid label="welds" dir=forward]
+	N1 -> S0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N3 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S1 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N9 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N10 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	M2 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/graph_hard/diagrams_82.txt b/test/diagrams/graph_hard/diagrams_82.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7412e338e168d47ac90dc52a757a817ff78f01ab
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_82.txt
@@ -0,0 +1,32 @@
+<Bridge Building, connectedTo, Demolition>
+<Budget Tracking, connectedTo, Blueprint Review>
+<Budget Tracking, connectedTo, HVAC Installation>
+<Budget Tracking, connectedTo, Quality Assurance>
+<Budget Tracking, connectedTo, Safety Inspection>
+<Demolition, connectedTo, Blueprint Review>
+<Drone Surveying, connectedTo, Site Logistics>
+<HVAC Installation, connectedTo, Safety Inspection>
+<Material Procurement, connectedTo, Blueprint Review>
+<Material Procurement, connectedTo, Budget Tracking>
+<Material Procurement, connectedTo, Quality Assurance>
+<Material Procurement, connectedTo, Site Decontamination>
+<Material Procurement, frames, Project Scheduling>
+<Occupancy Permit Acquisition, connectedTo, Steel Erection>
+<Permit Application, connectedTo, Project Scheduling>
+<Permit Application, connectedTo, Roofing Installation>
+<Permit Application, plans, Quality Assurance>
+<Project Scheduling, connectedTo, Budget Tracking>
+<Project Scheduling, connectedTo, Quality Assurance>
+<Quality Assurance, connectedTo, HVAC Installation>
+<Road Construction, connectedTo, Site Decontamination>
+<Roofing Installation, connectedTo, Material Procurement>
+<Roofing Installation, connectedTo, Occupancy Permit Acquisition>
+<Roofing Installation, connectedTo, Project Scheduling>
+<Roofing Installation, connectedTo, Safety Inspection>
+<Roofing Installation, coordinates, Blueprint Review>
+<Safety Inspection, connectedTo, Blueprint Review>
+<Safety Inspection, connectedTo, Drone Surveying>
+<Site Decontamination, complies, Project Scheduling>
+<Site Decontamination, connectedTo, Quality Assurance>
+<Site Logistics, connectedTo, Road Construction>
+<Steel Erection, connectedTo, Bridge Building>
diff --git a/test/diagrams/graph_hard/diagrams_92.txt b/test/diagrams/graph_hard/diagrams_92.txt
new file mode 100644
index 0000000000000000000000000000000000000000..34fa304547e4c51aeb555695d540d2e95ca2713e
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_92.txt
@@ -0,0 +1,41 @@
+<Accessibility in Sports Venues, connectedTo, Fan Experience Enhancement>
+<Athlete Performance Tracking, connectedTo, Game Strategy>
+<Athlete Performance Tracking, rehabilitates, Accessibility in Sports Venues>
+<Data Analytics in Sports, connectedTo, Talent Scouting>
+<Fan Club Management, connectedTo, Data Analytics in Sports>
+<Fan Club Management, connectedTo, Talent Scouting>
+<Fan Club Management, wins, Athlete Performance Tracking>
+<Fan Engagement, connectedTo, Sports Marketing>
+<Fan Experience Enhancement, connectedTo, Data Analytics in Sports>
+<Fan Experience Enhancement, sells, Match Play>
+<Game Strategy, connectedTo, Sports Betting Regulation>
+<Game Strategy, connectedTo, Talent Scouting>
+<Game Strategy, connectedTo, Team Management>
+<Injury Management, connectedTo, Accessibility in Sports Venues>
+<Injury Management, connectedTo, Fan Club Management>
+<Injury Management, connectedTo, Fan Experience Enhancement>
+<Injury Management, connectedTo, Talent Scouting>
+<Injury Management, recruits, Data Analytics in Sports>
+<Injury Management, regulates, Rule Enforcement>
+<Match Play, connectedTo, Data Analytics in Sports>
+<Media Rights Negotiation, connectedTo, Accessibility in Sports Venues>
+<Refereeing, connectedTo, Media Rights Negotiation>
+<Rule Enforcement, connectedTo, Sports Psychology>
+<Rule Enforcement, connectedTo, Talent Scouting>
+<Sports Betting Regulation, connectedTo, Tournament Organization>
+<Sports Marketing, connectedTo, Talent Scouting>
+<Sports Marketing, connectedTo, Venue Booking>
+<Sports Psychology, connectedTo, Sports Marketing>
+<Talent Scouting, connectedTo, Refereeing>
+<Talent Scouting, connectedTo, Training Session>
+<Team Management, connectedTo, Data Analytics in Sports>
+<Team Management, connectedTo, Rule Enforcement>
+<Team Management, connectedTo, Scorekeeping>
+<Team Management, connectedTo, Sports Psychology>
+<Team Management, connectedTo, Venue Booking>
+<Tournament Organization, connectedTo, Fan Engagement>
+<Training Session, connectedTo, Scorekeeping>
+<Venue Booking, connectedTo, Accessibility in Sports Venues>
+<Venue Booking, connectedTo, Data Analytics in Sports>
+<Venue Booking, connectedTo, Match Play>
+<Venue Booking, connectedTo, Scorekeeping>
diff --git a/test/diagrams/graph_hard/diagrams_98.dot b/test/diagrams/graph_hard/diagrams_98.dot
new file mode 100644
index 0000000000000000000000000000000000000000..86e57fb26c51e7adebd51e9a1cc06509f2740a4c
--- /dev/null
+++ b/test/diagrams/graph_hard/diagrams_98.dot
@@ -0,0 +1,56 @@
+digraph {
+	rankdir=LR
+	N0 [label="Grievance Handling" color="#42A5F5" fillcolor="#F1F8FF" shape=predefinedprocess style=filled]
+	N1 [label="Workforce Planning" color="#FFD54F" fillcolor="#FFF8E1" shape=hexagon style=filled]
+	N2 [label="Offer Management" color="#42A5F5" fillcolor="#F1F8FF" shape=rectangle style=filled]
+	N3 [label="Onboarding Process" color="#FFC2C2" fillcolor="#FFEBEB" shape=predefinedprocess style=filled]
+	N4 [label="Job Posting" color="#FFC2C2" fillcolor="#FFEBEB" shape=multipledocuments style=filled]
+	N5 [label="Leadership Training" color="#42A5F5" fillcolor="#F1F8FF" shape=database style=filled]
+	S0 [label="" color="#FFD54F" fillcolor="#FFF8E1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFC2C2" fillcolor="#FFEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#42A5F5" fillcolor="#F1F8FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Succession Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Succession Planning"
+		nest0_0 [label="Employee Data Management" color="#FFC2C2" fillcolor="#FFEBEB" shape=inputoutput style=filled]
+		nest0_1 [label="Exit Interviews" color="#FFD54F" fillcolor="#FFF8E1" shape=rect style=filled]
+		nest0_2 [label="HR Policy Development" color="#FFC2C2" fillcolor="#FFEBEB" shape=action style=filled]
+		nest0_3 [label="Employee Handbook Creation" color="#FFC2C2" fillcolor="#FFEBEB" shape=hexagon style=filled]
+	}
+	subgraph cluster_HR Information System Implementation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="HR Information System Implementation"
+		nest1_0 [label="Talent Management" color="#42A5F5" fillcolor="#F1F8FF" shape=document style=filled]
+		nest1_1 [label="Health and Safety Management" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+		nest1_2 [label="Union Negotiations" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+		nest1_3 [label="Employee Relations" color="#42A5F5" fillcolor="#F1F8FF" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#42A5F5" 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="#FFD54F" penwidth=1.5 style=solid label="protects" dir=forward]
+	N3 -> nest0_0 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N3 [color="#000000" penwidth=1.5 style=dashed 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=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N3 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N4 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_hard/diagrams_101_scanned.png b/test/diagrams/scanned_hard/diagrams_101_scanned.png
new file mode 100644
index 0000000000000000000000000000000000000000..d16cd0e70643af28790bfcf97c00cf94b5c56c70
--- /dev/null
+++ b/test/diagrams/scanned_hard/diagrams_101_scanned.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0da769ee75920608f4b89368d57baf62f81734f3a4e67d400984223f220083c0
+size 583769
diff --git a/test/diagrams/scanned_hard/diagrams_103_scanned.png b/test/diagrams/scanned_hard/diagrams_103_scanned.png
new file mode 100644
index 0000000000000000000000000000000000000000..dfd9ddfab10375c6011851444f362abd40936c3a
--- /dev/null
+++ b/test/diagrams/scanned_hard/diagrams_103_scanned.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/test/diagrams/scanned_hard/diagrams_105_scanned.png b/test/diagrams/scanned_hard/diagrams_105_scanned.png
new file mode 100644
index 0000000000000000000000000000000000000000..c5422a33d9e1916f019aa9c37e8f0fbeb167f489
--- /dev/null
+++ b/test/diagrams/scanned_hard/diagrams_105_scanned.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/test/diagrams/scanned_hard/diagrams_107_scanned.png b/test/diagrams/scanned_hard/diagrams_107_scanned.png
new file mode 100644
index 0000000000000000000000000000000000000000..3052bf5a5ac6043137768abddc59824912461cc1
--- /dev/null
+++ b/test/diagrams/scanned_hard/diagrams_107_scanned.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:65aab7c6954e89c7597b86b04978f1228a80e242f87cd89eccbd2435b38b9397
+size 483386
diff --git a/test/diagrams/scanned_hard/diagrams_112_scanned.png b/test/diagrams/scanned_hard/diagrams_112_scanned.png
new file mode 100644
index 0000000000000000000000000000000000000000..c9a97dd3996b4d5753de49db89212c1384e83ef3
--- /dev/null
+++ b/test/diagrams/scanned_hard/diagrams_112_scanned.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:19b7f75312cdcca714a350422315537744226109d9b0853c5db16a7eb315a58f
+size 581949
diff --git a/test/diagrams/scanned_hard/diagrams_117_scanned.png b/test/diagrams/scanned_hard/diagrams_117_scanned.png
new file mode 100644
index 0000000000000000000000000000000000000000..bdc62390c105b94b7977906ca5f80e1d2416fb35
--- /dev/null
+++ b/test/diagrams/scanned_hard/diagrams_117_scanned.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:094c5dee34102c1ca8adeb30c9c7bf9e0122bb6bbc1945b2de3008077fe63851
+size 564940
diff --git a/test/diagrams/scanned_hard/diagrams_118_scanned.png b/test/diagrams/scanned_hard/diagrams_118_scanned.png
new file mode 100644
index 0000000000000000000000000000000000000000..9a66f552b225f41b4e44ba0fc5bc064e326c1c2c
--- /dev/null
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@@ -0,0 +1,10 @@
+<Fiber Optic Deployment, connectedTo, Usage Monitoring>
+<Fiber Optic Deployment, secures, Plan Selection>
+<Fraudulent Call Blocking, licenses, Network Security Monitoring>
+<MMS Transmission, controls, Service Level Agreement>
+<Network Security Monitoring, connectedTo, Fiber Optic Deployment>
+<Network Upgrade, renews, MMS Transmission>
+<Plan Selection, connectedTo, Network Upgrade>
+<Plan Selection, troubleshoots, Network Security Monitoring>
+<Service Level Agreement, connectedTo, Base Station Installation>
+<Usage Monitoring, generates, Plan Selection>
diff --git a/test/diagrams/scanned_medium/diagrams_100.dot b/test/diagrams/scanned_medium/diagrams_100.dot
new file mode 100644
index 0000000000000000000000000000000000000000..29c9ef41a2dff4fe140d299f1a42ef5f31c1fc4b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_100.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=LR
+	N0 [label="Environmental Compliance" color="#4DD0E1" fillcolor="#C9F0F0" shape=hexagon style=filled]
+	N1 [label="Financial Regulations Compliance" color="#4DD0E1" fillcolor="#C9F0F0" shape=inputoutput style=filled]
+	N2 [label="Legal Advisory" color="#F44336" fillcolor="#FFCDD2" shape=preparation style=filled]
+	N3 [label="Stakeholder Engagement on Ethics" color="#4DD0E1" fillcolor="#C9F0F0" shape=preparation style=filled]
+	N4 [label="Conflict of Interest Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=rect style=filled]
+	N5 [label="Labor Law Compliance" color="#4DD0E1" fillcolor="#C9F0F0" shape=rectangle style=filled]
+	N6 [label="Third_Party Due Diligence" color="#4DD0E1" fillcolor="#C9F0F0" shape=predefinedprocess style=filled]
+	N7 [label="Anti_Bribery and Corruption Compliance" color="#4FC3F7" fillcolor="#E1F5FE" shape=vnode_shape style=filled]
+	N8 [label="Compliance Hotlines" color="#F44336" fillcolor="#FFCDD2" shape=predefinedprocess style=filled]
+	N9 [label="Data Ethics" color="#F44336" fillcolor="#FFCDD2" shape=predefinedprocess style=filled]
+	N10 [label="Incident Response Planning" color="#4DD0E1" fillcolor="#C9F0F0" shape=preparation style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#4DD0E1" penwidth=1.5 style=solid label="mitigates" dir=forward]
+	N3 -> N4 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#F44336" penwidth=1.5 style=dashed label="reviews" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="monitors" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="standards" dir=forward]
+	N9 -> N10 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N1 -> N4 [color="#000000" penwidth=1.5 style=dashed label="protects" dir=forward]
+	N10 -> N0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_100.txt b/test/diagrams/scanned_medium/diagrams_100.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5f44eb938ba2d80ef1359d9f28e0ab7a93cb9b7e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_100.txt
@@ -0,0 +1,12 @@
+<Anti_Bribery and Corruption Compliance, monitors, Compliance Hotlines>
+<Compliance Hotlines, standards, Data Ethics>
+<Conflict of Interest Management, connectedTo, Labor Law Compliance>
+<Data Ethics, connectedTo, Incident Response Planning>
+<Environmental Compliance, connectedTo, Financial Regulations Compliance>
+<Financial Regulations Compliance, connectedTo, Legal Advisory>
+<Financial Regulations Compliance, protects, Conflict of Interest Management>
+<Incident Response Planning, connectedTo, Environmental Compliance>
+<Labor Law Compliance, connectedTo, Third_Party Due Diligence>
+<Legal Advisory, mitigates, Stakeholder Engagement on Ethics>
+<Stakeholder Engagement on Ethics, connectedTo, Conflict of Interest Management>
+<Third_Party Due Diligence, reviews, Anti_Bribery and Corruption Compliance>
diff --git a/test/diagrams/scanned_medium/diagrams_101.dot b/test/diagrams/scanned_medium/diagrams_101.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d528daadb2c6aacc522f8cb23f245c222d6b8517
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_101.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=RL
+	N0 [label="Cloud Forensics" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N1 [label="Forensic Accounting" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N2 [label="Voice Recognition" color="#A2D0FF" fillcolor="#E8F0FF" shape=diamond style=filled]
+	N3 [label="Forensic Botany" color="#A2D0FF" fillcolor="#E8F0FF" shape=database style=filled]
+	N4 [label="Malware Analysis" color="#A2D0FF" fillcolor="#E8F0FF" shape=preparation style=filled]
+	N5 [label="Courtroom Presentation" color="#A2D0FF" fillcolor="#E8F0FF" shape=action style=filled]
+	N6 [label="Forensic Psychology" color="#FF9800" fillcolor="#FFE0B2" shape=action style=filled]
+	N7 [label="Forensic Entomology" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N8 [label="DNA Profiling" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N9 [label="Network Forensics" color="#FF9800" fillcolor="#FFE0B2" shape=database style=filled]
+	N0 -> N1 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FBC02D" penwidth=1.5 style=solid label="validates" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N3 -> N4 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FBC02D" penwidth=1.5 style=dashed label="autopsies" dir=forward]
+	N6 -> N7 [color="#FBC02D" penwidth=1.5 style=dashed label="reconstructs" dir=forward]
+	N7 -> N8 [color="#FF9800" penwidth=1.5 style=dashed label="complies" dir=forward]
+	N8 -> N9 [color="#A2D0FF" penwidth=1.5 style=dashed label="preserves" dir=forward]
+	N8 -> N4 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_101.txt b/test/diagrams/scanned_medium/diagrams_101.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1b7993aa9e7b134ec970b3b91bb4d9acbbc5b612
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_101.txt
@@ -0,0 +1,11 @@
+<Cloud Forensics, connectedTo, Forensic Accounting>
+<Courtroom Presentation, autopsies, Forensic Psychology>
+<DNA Profiling, connectedTo, Malware Analysis>
+<DNA Profiling, preserves, Network Forensics>
+<Forensic Accounting, validates, Voice Recognition>
+<Forensic Botany, connectedTo, Malware Analysis>
+<Forensic Entomology, complies, DNA Profiling>
+<Forensic Entomology, connectedTo, Cloud Forensics>
+<Forensic Psychology, reconstructs, Forensic Entomology>
+<Malware Analysis, connectedTo, Courtroom Presentation>
+<Voice Recognition, reports, Forensic Botany>
diff --git a/test/diagrams/scanned_medium/diagrams_102.dot b/test/diagrams/scanned_medium/diagrams_102.dot
new file mode 100644
index 0000000000000000000000000000000000000000..77bf80bc005bae03dd4e137b2fea9f00405f682b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_102.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=BT
+	N0 [label="Data Analytics for Terrorism" color="#B8C0F5" fillcolor="#ECF0FD" shape=document style=filled]
+	N1 [label="Counter_Propaganda" color="#E91E63" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N2 [label="Post_Incident Recovery" color="#E91E63" fillcolor="#FCE4EC" shape=document style=filled]
+	N3 [label="Chemical Biological Radiological Nuclear Defense" color="#E91E63" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N4 [label="Crisis Response Planning" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N5 [label="Radicalization Prevention" color="#90A4AE" fillcolor="#ECEFF1" shape=rect style=filled]
+	N6 [label="Psychological Operations" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N7 [label="Transportation Security" color="#E91E63" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N8 [label="Behavioral Threat Assessment" color="#90A4AE" fillcolor="#ECEFF1" shape=vnode_shape style=filled]
+	N9 [label="Public Awareness Campaigns" color="#E91E63" fillcolor="#FCE4EC" shape=document style=filled]
+	N10 [label="Emergency Preparedness" color="#B8C0F5" fillcolor="#ECF0FD" shape=predefinedprocess style=filled]
+	N11 [label="Airport Security" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+	N0 -> N1 [color="#E91E63" penwidth=1.5 style=dashed label="rescues_hostages" dir=forward]
+	N1 -> N2 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#E91E63" penwidth=1.5 style=solid label="responds" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="protects_critical_infra" dir=forward]
+	N5 -> N6 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#90A4AE" penwidth=1.5 style=dashed label="partners_engages" dir=forward]
+	N10 -> N11 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N9 -> N11 [color="#B8C0F5" penwidth=1.5 style=solid label="intelligence_gathers" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_102.txt b/test/diagrams/scanned_medium/diagrams_102.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dab87d1665f33b6727058511cb61c7466a4fa7e3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_102.txt
@@ -0,0 +1,12 @@
+<Behavioral Threat Assessment, connectedTo, Public Awareness Campaigns>
+<Chemical Biological Radiological Nuclear Defense, responds, Crisis Response Planning>
+<Counter_Propaganda, connectedTo, Post_Incident Recovery>
+<Crisis Response Planning, protects_critical_infra, Radicalization Prevention>
+<Data Analytics for Terrorism, rescues_hostages, Counter_Propaganda>
+<Emergency Preparedness, connectedTo, Airport Security>
+<Post_Incident Recovery, connectedTo, Chemical Biological Radiological Nuclear Defense>
+<Psychological Operations, connectedTo, Transportation Security>
+<Public Awareness Campaigns, intelligence_gathers, Airport Security>
+<Public Awareness Campaigns, partners_engages, Emergency Preparedness>
+<Radicalization Prevention, connectedTo, Psychological Operations>
+<Transportation Security, connectedTo, Behavioral Threat Assessment>
diff --git a/test/diagrams/scanned_medium/diagrams_103.dot b/test/diagrams/scanned_medium/diagrams_103.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7a7b5ee8daa39831ec9bc43e4bd6ff50215f04ab
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_103.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=LR
+	N0 [label="Mobile Phone Interception" color="#E91E63" fillcolor="#FCE4EC" shape=multipledocuments style=filled]
+	N1 [label="Internet Traffic Monitoring" color="#BA68C8" fillcolor="#F3E5F5" shape=action style=filled]
+	N2 [label="Privacy Concerns Mitigation" color="#BA68C8" fillcolor="#F3E5F5" shape=inputoutput style=filled]
+	N3 [label="Access Control Systems" color="#F44336" fillcolor="#FFCDD2" shape=action style=filled]
+	N4 [label="Ethical Guidelines" color="#E91E63" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N5 [label="Physical Security Integration" color="#E91E63" fillcolor="#FCE4EC" shape=multipledocuments style=filled]
+	N6 [label="Facial Recognition Systems" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N7 [label="Remote Sensing" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+	N8 [label="Data Collection" color="#E91E63" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	N0 -> N1 [color="#E91E63" penwidth=1.5 style=dashed label="captures" dir=forward]
+	N1 -> N2 [color="#E91E63" penwidth=1.5 style=dashed label="deploys" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="regulates" dir=forward]
+	N3 -> N4 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="controls" dir=forward]
+	N6 -> N7 [color="#E91E63" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N7 -> N8 [color="#BA68C8" penwidth=1.5 style=solid label="maintains" dir=forward]
+	N0 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_103.txt b/test/diagrams/scanned_medium/diagrams_103.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a5374d70630bde250fc54dffbace0b3513ed9567
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_103.txt
@@ -0,0 +1,10 @@
+<Access Control Systems, connectedTo, Ethical Guidelines>
+<Ethical Guidelines, secures, Physical Security Integration>
+<Facial Recognition Systems, analyzes, Remote Sensing>
+<Internet Traffic Monitoring, deploys, Privacy Concerns Mitigation>
+<Mobile Phone Interception, captures, Internet Traffic Monitoring>
+<Mobile Phone Interception, connectedTo, Privacy Concerns Mitigation>
+<Physical Security Integration, controls, Facial Recognition Systems>
+<Privacy Concerns Mitigation, regulates, Access Control Systems>
+<Remote Sensing, connectedTo, Facial Recognition Systems>
+<Remote Sensing, maintains, Data Collection>
diff --git a/test/diagrams/scanned_medium/diagrams_104.dot b/test/diagrams/scanned_medium/diagrams_104.dot
new file mode 100644
index 0000000000000000000000000000000000000000..46aad917e1f0dcfdfa81ec2f2da143752325475b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_104.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=RL
+	N0 [label="Cybercrime Prevention" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N1 [label="Behavioral Science in Prevention" color="#FFCC80" fillcolor="#FFF0CC" shape=preparation style=filled]
+	N2 [label="Security Lighting" color="#2196F3" fillcolor="#BBDEFB" shape=hexagon style=filled]
+	N3 [label="Crisis Intervention" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N4 [label="Mediation Services" color="#2196F3" fillcolor="#BBDEFB" shape=diamond style=filled]
+	N5 [label="Gang Intervention" color="#81C784" fillcolor="#F1F8E9" shape=diamond style=filled]
+	N6 [label="Crime Prevention Through Education" color="#FFCC80" fillcolor="#FFF0CC" shape=parallelogram style=filled]
+	N7 [label="Neighborhood Watch Programs" color="#81C784" fillcolor="#F1F8E9" shape=action style=filled]
+	N8 [label="Identity Theft Prevention" color="#FFCC80" fillcolor="#FFF0CC" shape=inputoutput style=filled]
+	N9 [label="Rehabilitation Programs" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N10 [label="Policy Development for Prevention" color="#2196F3" fillcolor="#BBDEFB" shape=inputoutput style=filled]
+	N11 [label="Fraud Prevention" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N0 -> N1 [color="#FFCC80" penwidth=1.5 style=solid label="certifies" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFCC80" penwidth=1.5 style=solid label="analyzes_data" dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#2196F3" penwidth=1.5 style=dashed label="warns" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="educates" 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="#2196F3" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N10 -> N11 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N0 -> N11 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N0 -> N7 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_104.txt b/test/diagrams/scanned_medium/diagrams_104.txt
new file mode 100644
index 0000000000000000000000000000000000000000..97a72fe427542fa5220f83d0077c5cbe9505344b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_104.txt
@@ -0,0 +1,13 @@
+<Behavioral Science in Prevention, connectedTo, Security Lighting>
+<Crime Prevention Through Education, connectedTo, Neighborhood Watch Programs>
+<Crisis Intervention, connectedTo, Mediation Services>
+<Cybercrime Prevention, certifies, Behavioral Science in Prevention>
+<Cybercrime Prevention, connectedTo, Fraud Prevention>
+<Cybercrime Prevention, connectedTo, Neighborhood Watch Programs>
+<Gang Intervention, educates, Crime Prevention Through Education>
+<Identity Theft Prevention, connectedTo, Rehabilitation Programs>
+<Mediation Services, warns, Gang Intervention>
+<Neighborhood Watch Programs, connectedTo, Identity Theft Prevention>
+<Policy Development for Prevention, connectedTo, Fraud Prevention>
+<Rehabilitation Programs, reports, Policy Development for Prevention>
+<Security Lighting, analyzes_data, Crisis Intervention>
diff --git a/test/diagrams/scanned_medium/diagrams_105.dot b/test/diagrams/scanned_medium/diagrams_105.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a3cd47a293dc3f29deaac65bd92476385797cf9d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_105.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=LR
+	N0 [label="Sustainable Resource Management" color="#73C6BC" fillcolor="#D0EFEE" shape=vnode_shape style=filled]
+	N1 [label="Data Management for Conservation" color="#FFF9AE" fillcolor="#FFFCE6" shape=preparation style=filled]
+	N2 [label="Satellite Tracking of Animals" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+	N3 [label="Fundraising for Conservation" color="#C0CA33" fillcolor="#F9FBE7" shape=action style=filled]
+	N4 [label="Law Enforcement" color="#FFF9AE" fillcolor="#FFFCE6" shape=rectangle style=filled]
+	N5 [label="Research and Development in Conservation" color="#FFF9AE" fillcolor="#FFFCE6" shape=rect style=filled]
+	N6 [label="Forestry Practices for Conservation" color="#FFF9AE" fillcolor="#FFFCE6" shape=diamond style=filled]
+	N7 [label="Freshwater Conservation" color="#C0CA33" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N8 [label="Habitat Restoration" color="#FFF9AE" fillcolor="#FFFCE6" shape=action style=filled]
+	N0 -> N1 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#C0CA33" penwidth=1.5 style=dashed label="manages" dir=forward]
+	N2 -> N3 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#C0CA33" penwidth=1.5 style=dashed label="anti_poaching_fights" dir=forward]
+	N4 -> N5 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#C0CA33" penwidth=1.5 style=solid label="predicts_changes" dir=forward]
+	N6 -> N7 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFF9AE" penwidth=1.5 style=solid label="certifies" dir=forward]
+	N2 -> N0 [color="#C0CA33" penwidth=1.5 style=dashed label="secures_areas" dir=forward]
+	N6 -> N5 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_105.txt b/test/diagrams/scanned_medium/diagrams_105.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4216d6638ea8498d7ba1bc2b312b65083e489dc7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_105.txt
@@ -0,0 +1,10 @@
+<Data Management for Conservation, manages, Satellite Tracking of Animals>
+<Forestry Practices for Conservation, connectedTo, Freshwater Conservation>
+<Forestry Practices for Conservation, connectedTo, Research and Development in Conservation>
+<Freshwater Conservation, certifies, Habitat Restoration>
+<Fundraising for Conservation, anti_poaching_fights, Law Enforcement>
+<Law Enforcement, connectedTo, Research and Development in Conservation>
+<Research and Development in Conservation, predicts_changes, Forestry Practices for Conservation>
+<Satellite Tracking of Animals, connectedTo, Fundraising for Conservation>
+<Satellite Tracking of Animals, secures_areas, Sustainable Resource Management>
+<Sustainable Resource Management, connectedTo, Data Management for Conservation>
diff --git a/test/diagrams/scanned_medium/diagrams_106.dot b/test/diagrams/scanned_medium/diagrams_106.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c2ce7fd7a30edda34d7bb549b9574ba2c4477fb5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_106.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=TB
+	N0 [label="Sediment Analysis" color="#FFC085" fillcolor="#FFDAB9" shape=document style=filled]
+	N1 [label="Biological Oceanography" color="#FFC085" fillcolor="#FFDAB9" shape=diamond style=filled]
+	N2 [label="Ocean Current Measurement" color="#92C79A" fillcolor="#E8F0EA" shape=action style=filled]
+	N3 [label="Acoustic Oceanography" color="#4DB6AC" fillcolor="#E0F2F1" shape=box style=filled]
+	N4 [label="Ocean Modeling" color="#4DB6AC" fillcolor="#E0F2F1" shape=rect style=filled]
+	N5 [label="Deep_Sea Exploration" color="#FFC085" fillcolor="#FFDAB9" shape=vnode_shape style=filled]
+	N6 [label="Marine Ecosystem Health" color="#92C79A" fillcolor="#E8F0EA" shape=rect style=filled]
+	N7 [label="Marine Protected Area Planning" color="#FFC085" fillcolor="#FFDAB9" shape=database style=filled]
+	N0 -> N1 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="pollution" dir=forward]
+	N3 -> N4 [color="#92C79A" penwidth=1.5 style=solid label="understands" dir=forward]
+	N4 -> N5 [color="#FFC085" penwidth=1.5 style=solid label="publishes" dir=forward]
+	N5 -> N6 [color="#FFC085" penwidth=1.5 style=dashed label="samples" dir=forward]
+	N6 -> N7 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N5 -> N0 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N3 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_106.txt b/test/diagrams/scanned_medium/diagrams_106.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1f65b2a352f8f495cda24aa55f8130049c6669ef
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_106.txt
@@ -0,0 +1,9 @@
+<Acoustic Oceanography, understands, Ocean Modeling>
+<Biological Oceanography, connectedTo, Acoustic Oceanography>
+<Biological Oceanography, connectedTo, Ocean Current Measurement>
+<Deep_Sea Exploration, connectedTo, Sediment Analysis>
+<Deep_Sea Exploration, samples, Marine Ecosystem Health>
+<Marine Ecosystem Health, connectedTo, Marine Protected Area Planning>
+<Ocean Current Measurement, pollution, Acoustic Oceanography>
+<Ocean Modeling, publishes, Deep_Sea Exploration>
+<Sediment Analysis, connectedTo, Biological Oceanography>
diff --git a/test/diagrams/scanned_medium/diagrams_107.dot b/test/diagrams/scanned_medium/diagrams_107.dot
new file mode 100644
index 0000000000000000000000000000000000000000..266307064b0b1240cf3a08ada140c569751027bd
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_107.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=RL
+	N0 [label="Glacial Seismology" color="#EAEFA5" fillcolor="#FDFCEB" shape=rectangle style=filled]
+	N1 [label="Liquefaction Potential Assessment" color="#A1887F" fillcolor="#EFEBE9" shape=rect style=filled]
+	N2 [label="Subsurface Imaging" color="#A1887F" fillcolor="#EFEBE9" shape=inputoutput style=filled]
+	N3 [label="Seismic Inversion" color="#A1887F" fillcolor="#EFEBE9" shape=rectangle style=filled]
+	N4 [label="Computational Seismology" color="#FFE69C" fillcolor="#FFF9D4" shape=parallelogram style=filled]
+	N5 [label="Microseismicity Study" color="#EAEFA5" fillcolor="#FDFCEB" shape=rectangle style=filled]
+	N6 [label="Building Code Development" color="#A1887F" fillcolor="#EFEBE9" shape=database style=filled]
+	N7 [label="Seismic Noise Analysis" color="#EAEFA5" fillcolor="#FDFCEB" shape=rect style=filled]
+	N8 [label="Structural Response to Earthquakes" color="#A1887F" fillcolor="#EFEBE9" shape=vnode_shape style=filled]
+	N9 [label="Deep Earth Seismology" color="#EAEFA5" fillcolor="#FDFCEB" shape=document style=filled]
+	N0 -> N1 [color="#FFE69C" penwidth=1.5 style=solid label="responds" dir=forward]
+	N1 -> N2 [color="#FFE69C" penwidth=1.5 style=solid label="calibrates_sensors" dir=forward]
+	N2 -> N3 [color="#EAEFA5" penwidth=1.5 style=dashed label="data_collects" dir=forward]
+	N3 -> N4 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFE69C" penwidth=1.5 style=dashed label="international_cooperates" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="tsunamis_monitors" dir=forward]
+	N6 -> N7 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFE69C" penwidth=1.5 style=dashed label="visualizes" dir=forward]
+	N8 -> N9 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N0 -> N5 [color="#A1887F" penwidth=1.5 style=solid label="predicts" dir=forward]
+	N4 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_107.txt b/test/diagrams/scanned_medium/diagrams_107.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e7e913464aea83240b72663948ec7ece6e90bf2d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_107.txt
@@ -0,0 +1,11 @@
+<Building Code Development, connectedTo, Seismic Noise Analysis>
+<Computational Seismology, connectedTo, Deep Earth Seismology>
+<Computational Seismology, international_cooperates, Microseismicity Study>
+<Glacial Seismology, predicts, Microseismicity Study>
+<Glacial Seismology, responds, Liquefaction Potential Assessment>
+<Liquefaction Potential Assessment, calibrates_sensors, Subsurface Imaging>
+<Microseismicity Study, tsunamis_monitors, Building Code Development>
+<Seismic Inversion, connectedTo, Computational Seismology>
+<Seismic Noise Analysis, visualizes, Structural Response to Earthquakes>
+<Structural Response to Earthquakes, connectedTo, Deep Earth Seismology>
+<Subsurface Imaging, data_collects, Seismic Inversion>
diff --git a/test/diagrams/scanned_medium/diagrams_108.dot b/test/diagrams/scanned_medium/diagrams_108.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ea2c8132c839dfe4b968677b4ea7cdafd9b74969
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_108.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=TB
+	N0 [label="Rare Disease Genomics" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N1 [label="Proteomics" color="#F06292" fillcolor="#FCE4EC" shape=document style=filled]
+	N2 [label="Bioinformatics Pipeline Development" color="#BCB88A" fillcolor="#F5F5DC" shape=preparation style=filled]
+	N3 [label="DNA Sequencing" color="#2196F3" fillcolor="#BBDEFB" shape=document style=filled]
+	N4 [label="Single_Cell Genomics" color="#2196F3" fillcolor="#BBDEFB" shape=inputoutput style=filled]
+	N5 [label="Variant Calling" color="#2196F3" fillcolor="#BBDEFB" shape=rect style=filled]
+	N6 [label="Genome Assembly" color="#BCB88A" fillcolor="#F5F5DC" shape=database style=filled]
+	N7 [label="Spatial Genomics" color="#2196F3" fillcolor="#BBDEFB" shape=diamond style=filled]
+	N0 -> N1 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="advises" dir=forward]
+	N2 -> N3 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="stores_data" dir=forward]
+	N4 -> N5 [color="#BCB88A" penwidth=1.5 style=dashed label="regulates" dir=forward]
+	N5 -> N6 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#BCB88A" penwidth=1.5 style=dashed label="bioinformatics_uses" dir=forward]
+	N3 -> N1 [color="#000000" penwidth=1.5 style=solid label="genes_studies" dir=forward]
+	N5 -> N1 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_108.txt b/test/diagrams/scanned_medium/diagrams_108.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8a57432193c42a85d1055e8a0af2c91f22dfa68a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_108.txt
@@ -0,0 +1,9 @@
+<Bioinformatics Pipeline Development, connectedTo, DNA Sequencing>
+<DNA Sequencing, genes_studies, Proteomics>
+<DNA Sequencing, stores_data, Single_Cell Genomics>
+<Genome Assembly, bioinformatics_uses, Spatial Genomics>
+<Proteomics, advises, Bioinformatics Pipeline Development>
+<Rare Disease Genomics, connectedTo, Proteomics>
+<Single_Cell Genomics, regulates, Variant Calling>
+<Variant Calling, connectedTo, Genome Assembly>
+<Variant Calling, connectedTo, Proteomics>
diff --git a/test/diagrams/scanned_medium/diagrams_109.txt b/test/diagrams/scanned_medium/diagrams_109.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f8125647950712547d8292a1283f70ae5529a346
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_109.txt
@@ -0,0 +1,11 @@
+<Call Center Automation, integrates, Phonetic Transcription>
+<Children's Speech Recognition, evaluates, Dialect Adaptation>
+<Cloud_based Speech Services, connectedTo, Keyword Spotting>
+<Command and Control, connectedTo, Noise Reduction>
+<Command and Control, dictates, Cloud_based Speech Services>
+<Dialect Adaptation, connectedTo, Cloud_based Speech Services>
+<Keyword Spotting, acoustic_models, Command and Control>
+<Meeting Transcription, updates, Voice User Interface Design>
+<Phonetic Transcription, outputs, Voice Biometrics>
+<Voice Biometrics, connectedTo, Children's Speech Recognition>
+<Voice User Interface Design, secures, Call Center Automation>
diff --git a/test/diagrams/scanned_medium/diagrams_11.dot b/test/diagrams/scanned_medium/diagrams_11.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d87302b941dfa1749b1b6c10cddbecbe81a1b3ea
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_11.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=RL
+	N0 [label="Crop Rotation Planning" color="#AB47BC" fillcolor="#F3E5F5" shape=database style=filled]
+	N1 [label="Farm Maintenance" color="#9575CD" fillcolor="#EDE7F6" shape=rect style=filled]
+	N2 [label="Greenhouse Control" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N3 [label="Packaging for Sale" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	N4 [label="Seed Sowing" color="#9575CD" fillcolor="#EDE7F6" shape=rect style=filled]
+	N5 [label="Barn Cleaning" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N6 [label="Seedling Transplanting" color="#2196F3" fillcolor="#BBDEFB" shape=document style=filled]
+	N7 [label="Storage" color="#2196F3" fillcolor="#BBDEFB" shape=rectangle style=filled]
+	N8 [label="Market Transportation" color="#9575CD" fillcolor="#EDE7F6" shape=action style=filled]
+	N9 [label="Livestock Feeding" color="#AB47BC" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	N10 [label="Organic Certification" color="#9575CD" fillcolor="#EDE7F6" shape=rectangle style=filled]
+	N0 -> N1 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#9575CD" penwidth=1.5 style=solid label="fertilizes" dir=forward]
+	N2 -> N3 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#2196F3" penwidth=1.5 style=dashed label="applies" dir=forward]
+	N6 -> N7 [color="#9575CD" penwidth=1.5 style=dashed label="waters" dir=forward]
+	N7 -> N8 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="complies" dir=forward]
+	N5 -> N1 [color="#2196F3" penwidth=1.5 style=dashed label="harvests" dir=forward]
+	N3 -> N9 [color="#9575CD" penwidth=1.5 style=dashed label="sensors" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_11.txt b/test/diagrams/scanned_medium/diagrams_11.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4da20b21d7cacae20255e7dfb8af8493318fd081
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_11.txt
@@ -0,0 +1,12 @@
+<Barn Cleaning, applies, Seedling Transplanting>
+<Barn Cleaning, harvests, Farm Maintenance>
+<Crop Rotation Planning, connectedTo, Farm Maintenance>
+<Farm Maintenance, fertilizes, Greenhouse Control>
+<Greenhouse Control, connectedTo, Packaging for Sale>
+<Livestock Feeding, complies, Organic Certification>
+<Market Transportation, connectedTo, Livestock Feeding>
+<Packaging for Sale, connectedTo, Seed Sowing>
+<Packaging for Sale, sensors, Livestock Feeding>
+<Seed Sowing, connectedTo, Barn Cleaning>
+<Seedling Transplanting, waters, Storage>
+<Storage, connectedTo, Market Transportation>
diff --git a/test/diagrams/scanned_medium/diagrams_110.dot b/test/diagrams/scanned_medium/diagrams_110.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c95d7c02641c550df10503a91e59eacf17f9a14f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_110.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=BT
+	N0 [label="Corpus Creation" color="#A188DB" fillcolor="#DED7F0" shape=rect style=filled]
+	N1 [label="Data Cleaning for Text" color="#AB47BC" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N2 [label="Patent Analysis" color="#AB47BC" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N3 [label="Topic Modeling" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+	N4 [label="Social Media Text Analysis" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+	N5 [label="Keyword Extraction" color="#CB9BE1" fillcolor="#F2E6F5" shape=diamond style=filled]
+	N6 [label="Resume Parsing" color="#A188DB" fillcolor="#DED7F0" shape=hexagon style=filled]
+	N7 [label="Deep Learning for NLP" color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+	N0 -> N1 [color="#CB9BE1" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N1 -> N2 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A188DB" penwidth=1.5 style=solid label="structures" dir=forward]
+	N3 -> N4 [color="#AB47BC" penwidth=1.5 style=solid label="cleans_data" dir=forward]
+	N4 -> N5 [color="#CB9BE1" penwidth=1.5 style=solid label="interprets" dir=forward]
+	N5 -> N6 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#CB9BE1" penwidth=1.5 style=dashed label="transforms_data" dir=forward]
+	N0 -> N7 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N7 [color="#A188DB" penwidth=1.5 style=solid label="clusters" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_111.txt b/test/diagrams/scanned_medium/diagrams_111.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0e329c288f27c537d567305a05fa9c980eff3344
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_111.txt
@@ -0,0 +1,8 @@
+<AI or ML Model Integration, creates, Healthcare Digital Twins>
+<Aerospace Digital Twins, connectedTo, Augmented Reality Visualization>
+<Asset Optimization, processes_improves, Aerospace Digital Twins>
+<Augmented Reality Visualization, connectedTo, Sensor Data Integration>
+<Data Security for Digital Twins, connectedTo, AI or ML Model Integration>
+<Healthcare Digital Twins, connectedTo, Asset Optimization>
+<IoT Data Ingestion, predicts, Data Security for Digital Twins>
+<Sensor Data Integration, connectedTo, IoT Data Ingestion>
diff --git a/test/diagrams/scanned_medium/diagrams_112.dot b/test/diagrams/scanned_medium/diagrams_112.dot
new file mode 100644
index 0000000000000000000000000000000000000000..900ed048838b0a9d1ae63cc3434bff1b3e82b3a8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_112.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=TB
+	N0 [label="Orchestration of Processes" color="#D2D2D2" fillcolor="#F0F0F0" shape=inputoutput style=filled]
+	N1 [label="Return on Investment Calculation" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N2 [label="API Automation" color="#D2D2D2" fillcolor="#F0F0F0" shape=ellipse style=filled]
+	N3 [label="Compliance in Automation" color="#D2D2D2" fillcolor="#F0F0F0" shape=document style=filled]
+	N4 [label="Document Processing Automation" color="#A1D7CD" fillcolor="#EDF5F3" shape=parallelogram style=filled]
+	N5 [label="Task Automation" color="#2196F3" fillcolor="#BBDEFB" shape=rect style=filled]
+	N6 [label="Automation Opportunity Identification" color="#D2D2D2" fillcolor="#F0F0F0" shape=parallelogram style=filled]
+	N7 [label="Supply Chain Automation" color="#2196F3" fillcolor="#BBDEFB" shape=action style=filled]
+	N0 -> N1 [color="#A1D7CD" penwidth=1.5 style=dashed label="trains" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="orchestrates" dir=forward]
+	N2 -> N3 [color="#D2D2D2" penwidth=1.5 style=dashed label="integrates_systems" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#A1D7CD" penwidth=1.5 style=solid label="tests" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N0 [color="#2196F3" penwidth=1.5 style=solid label="BPM_utilizes" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_112.txt b/test/diagrams/scanned_medium/diagrams_112.txt
new file mode 100644
index 0000000000000000000000000000000000000000..316c0c810d2a0e31dcb1dc0280b103da66e5d453
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_112.txt
@@ -0,0 +1,9 @@
+<API Automation, integrates_systems, Compliance in Automation>
+<Automation Opportunity Identification, BPM_utilizes, Orchestration of Processes>
+<Automation Opportunity Identification, connectedTo, Supply Chain Automation>
+<Compliance in Automation, connectedTo, Document Processing Automation>
+<Document Processing Automation, connectedTo, Task Automation>
+<Orchestration of Processes, connectedTo, Compliance in Automation>
+<Orchestration of Processes, trains, Return on Investment Calculation>
+<Return on Investment Calculation, orchestrates, API Automation>
+<Task Automation, tests, Automation Opportunity Identification>
diff --git a/test/diagrams/scanned_medium/diagrams_113.dot b/test/diagrams/scanned_medium/diagrams_113.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e0e3e4c7bd89bd534d3fb72b119460c92c3337aa
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_113.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=BT
+	N0 [label="Root Cause Analysis" color="#B0C5CD" fillcolor="#DFE7EB" shape=diamond style=filled]
+	N1 [label="Non_Conformance Management" color="#FFB2A5" fillcolor="#FFDCD6" shape=rect style=filled]
+	N2 [label="Testing Methods" color="#B0C5CD" fillcolor="#DFE7EB" shape=rect style=filled]
+	N3 [label="Supplier Quality Management" color="#B0C5CD" fillcolor="#DFE7EB" shape=parallelogram style=filled]
+	N4 [label="Food Safety Quality Control" color="#94C0C0" fillcolor="#CADEDE" shape=rectangle style=filled]
+	N5 [label="ISO Certification" color="#94C0C0" fillcolor="#CADEDE" shape=multipledocuments style=filled]
+	N6 [label="Inspection Procedures" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+	N7 [label="Non_Destructive Testing" color="#94C0C0" fillcolor="#CADEDE" shape=multipledocuments style=filled]
+	N8 [label="Continuous Improvement" color="#94C0C0" fillcolor="#CADEDE" shape=diamond style=filled]
+	N9 [label="Supplier Audits" color="#B0C5CD" fillcolor="#DFE7EB" shape=predefinedprocess style=filled]
+	N10 [label="Lean Principles in Quality" color="#94C0C0" fillcolor="#CADEDE" shape=action style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="standards_sets" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="methodologies_applies" dir=forward]
+	N3 -> N4 [color="#FFB2A5" penwidth=1.5 style=dashed label="waste_reduces" dir=forward]
+	N4 -> N5 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFB2A5" 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=solid dir=forward]
+	N9 -> N10 [color="#B0C5CD" penwidth=1.5 style=solid label="services_assesses" dir=forward]
+	N1 -> N7 [color="#B0C5CD" penwidth=1.5 style=solid label="personnel_trains" dir=forward]
+	N7 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_113.txt b/test/diagrams/scanned_medium/diagrams_113.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c78df97c7cd971ae754ec861b03ba443cadfd74e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_113.txt
@@ -0,0 +1,12 @@
+<Continuous Improvement, connectedTo, Supplier Audits>
+<Food Safety Quality Control, connectedTo, ISO Certification>
+<ISO Certification, connectedTo, Inspection Procedures>
+<Inspection Procedures, connectedTo, Non_Destructive Testing>
+<Non_Conformance Management, personnel_trains, Non_Destructive Testing>
+<Non_Conformance Management, standards_sets, Testing Methods>
+<Non_Destructive Testing, connectedTo, Continuous Improvement>
+<Non_Destructive Testing, connectedTo, Food Safety Quality Control>
+<Root Cause Analysis, connectedTo, Non_Conformance Management>
+<Supplier Audits, services_assesses, Lean Principles in Quality>
+<Supplier Quality Management, waste_reduces, Food Safety Quality Control>
+<Testing Methods, methodologies_applies, Supplier Quality Management>
diff --git a/test/diagrams/scanned_medium/diagrams_114.dot b/test/diagrams/scanned_medium/diagrams_114.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0822b95a40dd81bb49489d8283d99d2c3c77350f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_114.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=LR
+	N0 [label="ERP System Selection" color="#FFB74D" fillcolor="#FFF3E0" shape=document style=filled]
+	N1 [label="Security Management" color="#FFA726" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+	N2 [label="Asset Management" color="#FFB74D" fillcolor="#FFF3E0" shape=database style=filled]
+	N3 [label="Customer Relationship Management" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	N4 [label="Data Migration" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	N5 [label="Human Capital Management" color="#FFB74D" fillcolor="#FFF3E0" shape=document style=filled]
+	N6 [label="User Training" color="#607D8B" fillcolor="#CFD8DC" shape=document style=filled]
+	N7 [label="Performance Optimization" color="#607D8B" fillcolor="#CFD8DC" shape=document style=filled]
+	N0 -> N1 [color="#FFA726" penwidth=1.5 style=dashed label="budgets" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFB74D" penwidth=1.5 style=solid label="streamlines" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFA726" penwidth=1.5 style=dashed label="on_premise_hosts" dir=forward]
+	N6 -> N0 [color="#FFB74D" penwidth=1.5 style=dashed label="HR_manages" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_114.txt b/test/diagrams/scanned_medium/diagrams_114.txt
new file mode 100644
index 0000000000000000000000000000000000000000..122bf9333aacccf622ae1da11c6d4d218c0f786d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_114.txt
@@ -0,0 +1,8 @@
+<Asset Management, streamlines, Customer Relationship Management>
+<Customer Relationship Management, connectedTo, Data Migration>
+<Data Migration, connectedTo, Human Capital Management>
+<ERP System Selection, budgets, Security Management>
+<Human Capital Management, connectedTo, User Training>
+<Security Management, connectedTo, Asset Management>
+<User Training, HR_manages, ERP System Selection>
+<User Training, on_premise_hosts, Performance Optimization>
diff --git a/test/diagrams/scanned_medium/diagrams_115.dot b/test/diagrams/scanned_medium/diagrams_115.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a4b5a701fa182a2c4df7b15f1f778b582907cc97
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_115.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=RL
+	N0 [label="Sensor Deployment" color="#FFC2C2" fillcolor="#FFEBEB" shape=diamond style=filled]
+	N1 [label="Yield Mapping" color="#CDDC39" fillcolor="#E6EE9C" shape=vnode_shape style=filled]
+	N2 [label="Farm Labor Management Software" color="#FFC2C2" fillcolor="#FFEBEB" shape=database style=filled]
+	N3 [label="Market Price Forecasting" color="#4DD0E1" fillcolor="#C9F0F0" shape=preparation style=filled]
+	N4 [label="Crop Insurance Assessment" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+	N5 [label="Data Security in Agriculture" color="#CDDC39" fillcolor="#E6EE9C" shape=preparation style=filled]
+	N6 [label="Drone Monitoring" color="#FFC2C2" fillcolor="#FFEBEB" shape=hexagon style=filled]
+	N7 [label="Digital Agronomy" color="#FFC2C2" fillcolor="#FFEBEB" shape=rectangle style=filled]
+	N8 [label="Big Data Analytics for Farms" color="#FFC2C2" fillcolor="#FFEBEB" shape=action style=filled]
+	N9 [label="Decision Support Systems for Farmers" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+	N10 [label="Satellite Imaging" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N11 [label="Livestock Feeding Automation" color="#FFC2C2" fillcolor="#FFEBEB" shape=database style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#4DD0E1" penwidth=1.5 style=solid label="automates" dir=forward]
+	N2 -> N3 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#4DD0E1" penwidth=1.5 style=solid label="fertilizes" dir=forward]
+	N4 -> N5 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="collects_data" dir=forward]
+	N8 -> N9 [color="#4DD0E1" penwidth=1.5 style=solid label="yield_enhances" dir=forward]
+	N9 -> N10 [color="#FFC2C2" penwidth=1.5 style=solid label="predicts" dir=forward]
+	N10 -> N11 [color="#CDDC39" penwidth=1.5 style=dashed label="harvests" dir=forward]
+	N11 -> N4 [color="#FFC2C2" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N6 -> N9 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_115.txt b/test/diagrams/scanned_medium/diagrams_115.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b562056185f3422ac7965d21a3f3286a7ad7e0dc
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_115.txt
@@ -0,0 +1,13 @@
+<Big Data Analytics for Farms, yield_enhances, Decision Support Systems for Farmers>
+<Crop Insurance Assessment, connectedTo, Data Security in Agriculture>
+<Data Security in Agriculture, connectedTo, Drone Monitoring>
+<Decision Support Systems for Farmers, predicts, Satellite Imaging>
+<Digital Agronomy, collects_data, Big Data Analytics for Farms>
+<Drone Monitoring, connectedTo, Decision Support Systems for Farmers>
+<Drone Monitoring, connectedTo, Digital Agronomy>
+<Farm Labor Management Software, connectedTo, Market Price Forecasting>
+<Livestock Feeding Automation, reports, Crop Insurance Assessment>
+<Market Price Forecasting, fertilizes, Crop Insurance Assessment>
+<Satellite Imaging, harvests, Livestock Feeding Automation>
+<Sensor Deployment, connectedTo, Yield Mapping>
+<Yield Mapping, automates, Farm Labor Management Software>
diff --git a/test/diagrams/scanned_medium/diagrams_116.dot b/test/diagrams/scanned_medium/diagrams_116.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9e2bb1bda0eb0f895ea335f0feff8a89d78d6ef3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_116.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=RL
+	N0 [label="Talent Representation" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+	N1 [label="Physical Conditioning for Players" color="#FFA726" fillcolor="#FFF3E0" shape=preparation style=filled]
+	N2 [label="Training Regimen" color="#FFA726" fillcolor="#FFF3E0" shape=document style=filled]
+	N3 [label="Prize Pool Management" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N4 [label="Team Management" color="#4CAF50" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N5 [label="Mental Health Support for Players" color="#FFA726" fillcolor="#FFF3E0" shape=database style=filled]
+	N6 [label="Legal Advisory for Esports" color="#FFA726" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N7 [label="Media Rights Negotiation" color="#4CAF50" fillcolor="#C8E6C9" shape=preparation style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFA726" penwidth=1.5 style=dashed label="health_supports" dir=forward]
+	N5 -> N6 [color="#FF5722" penwidth=1.5 style=solid label="merchandise_sells" dir=forward]
+	N6 -> N7 [color="#FFA726" penwidth=1.5 style=solid label="content_produces" dir=forward]
+	N5 -> N2 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_116.txt b/test/diagrams/scanned_medium/diagrams_116.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2fd74f6db486161b46de4a78b0f103d14cec86ec
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_116.txt
@@ -0,0 +1,8 @@
+<Legal Advisory for Esports, content_produces, Media Rights Negotiation>
+<Mental Health Support for Players, connectedTo, Training Regimen>
+<Mental Health Support for Players, merchandise_sells, Legal Advisory for Esports>
+<Physical Conditioning for Players, connectedTo, Training Regimen>
+<Prize Pool Management, connectedTo, Team Management>
+<Talent Representation, connectedTo, Physical Conditioning for Players>
+<Team Management, health_supports, Mental Health Support for Players>
+<Training Regimen, connectedTo, Prize Pool Management>
diff --git a/test/diagrams/scanned_medium/diagrams_117.dot b/test/diagrams/scanned_medium/diagrams_117.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7ccce841d2c20dc17943ac82eb538b777fe43da2
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_117.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=LR
+	N0 [label="Sleep Research" color="#A1887F" fillcolor="#EFEBE9" shape=action style=filled]
+	N1 [label="Addiction Neuroscience" color="#9C27B0" fillcolor="#E1BEE7" shape=preparation style=filled]
+	N2 [label="Spike Train Analysis" color="#82DAFF" fillcolor="#C8EDFF" shape=document style=filled]
+	N3 [label="Neural Network Analysis" color="#9C27B0" fillcolor="#E1BEE7" shape=vnode_shape style=filled]
+	N4 [label="Computational Neuroscience" color="#82DAFF" fillcolor="#C8EDFF" shape=diamond style=filled]
+	N5 [label="Gene Therapy for Neurological Disorders" color="#A1887F" fillcolor="#EFEBE9" shape=database style=filled]
+	N6 [label="Brain_Computer Interface" color="#82DAFF" fillcolor="#C8EDFF" shape=multipledocuments style=filled]
+	N7 [label="Neuroethics" color="#A1887F" fillcolor="#EFEBE9" shape=parallelogram style=filled]
+	N0 -> N1 [color="#82DAFF" penwidth=1.5 style=dashed label="collaborates" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A1887F" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N3 -> N4 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A1887F" penwidth=1.5 style=solid label="diseases_diagnoses" dir=forward]
+	N6 -> N7 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N5 [color="#A1887F" penwidth=1.5 style=dashed label="algorithms_develops" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_117.txt b/test/diagrams/scanned_medium/diagrams_117.txt
new file mode 100644
index 0000000000000000000000000000000000000000..73b96d06f72824085c7ef6f4dfb3027ce7d96166
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_117.txt
@@ -0,0 +1,8 @@
+<Addiction Neuroscience, algorithms_develops, Gene Therapy for Neurological Disorders>
+<Addiction Neuroscience, connectedTo, Spike Train Analysis>
+<Brain_Computer Interface, connectedTo, Neuroethics>
+<Computational Neuroscience, connectedTo, Gene Therapy for Neurological Disorders>
+<Gene Therapy for Neurological Disorders, diseases_diagnoses, Brain_Computer Interface>
+<Neural Network Analysis, connectedTo, Computational Neuroscience>
+<Sleep Research, collaborates, Addiction Neuroscience>
+<Spike Train Analysis, analyzes, Neural Network Analysis>
diff --git a/test/diagrams/scanned_medium/diagrams_118.dot b/test/diagrams/scanned_medium/diagrams_118.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5669d705e3396cd11f58dfbc5f614bfc7935a79c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_118.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=RL
+	N0 [label="Risk Assessment for Heritage" color="#AB47BC" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N1 [label="Intangible Cultural Heritage Preservation" color="#AB47BC" fillcolor="#F3E5F5" shape=parallelogram style=filled]
+	N2 [label="Illicit Trafficking Control" color="#AB47BC" fillcolor="#F3E5F5" shape=parallelogram style=filled]
+	N3 [label="Sustainable Heritage Management" color="#AED581" fillcolor="#F0F4C3" shape=inputoutput style=filled]
+	N4 [label="Photogrammetry for Documentation" color="#AED581" fillcolor="#F0F4C3" shape=database style=filled]
+	N5 [label="Heritage Impact Assessment" color="#AB47BC" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N6 [label="Artifact Conservation" color="#AED581" fillcolor="#F0F4C3" shape=hexagon style=filled]
+	N7 [label="Repatriation of Artifacts" color="#AB47BC" fillcolor="#F3E5F5" shape=inputoutput style=filled]
+	N0 -> N1 [color="#AED581" penwidth=1.5 style=dashed label="interprets" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="protects" dir=forward]
+	N2 -> N3 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#AB47BC" penwidth=1.5 style=solid label="accesses" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#AB47BC" penwidth=1.5 style=solid label="intangible_heritage_safeguards" dir=forward]
+	N6 -> N0 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N0 -> N6 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_118.txt b/test/diagrams/scanned_medium/diagrams_118.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ccb7f1bf63dadc4ad18ecd0b63dc6a0bd3b683e7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_118.txt
@@ -0,0 +1,9 @@
+<Artifact Conservation, connectedTo, Risk Assessment for Heritage>
+<Artifact Conservation, intangible_heritage_safeguards, Repatriation of Artifacts>
+<Heritage Impact Assessment, connectedTo, Artifact Conservation>
+<Illicit Trafficking Control, connectedTo, Sustainable Heritage Management>
+<Intangible Cultural Heritage Preservation, protects, Illicit Trafficking Control>
+<Photogrammetry for Documentation, accesses, Heritage Impact Assessment>
+<Risk Assessment for Heritage, connectedTo, Artifact Conservation>
+<Risk Assessment for Heritage, interprets, Intangible Cultural Heritage Preservation>
+<Sustainable Heritage Management, connectedTo, Photogrammetry for Documentation>
diff --git a/test/diagrams/scanned_medium/diagrams_119.dot b/test/diagrams/scanned_medium/diagrams_119.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b002f6a08364be781a016cf5aab98174e9fecbae
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_119.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=LR
+	N0 [label="Gene Synthesis Platforms" color="#FFC2C2" fillcolor="#FFEBEB" shape=parallelogram style=filled]
+	N1 [label="Gene Therapy Delivery Systems" color="#E57373" fillcolor="#FFEBEE" shape=inputoutput style=filled]
+	N2 [label="Protein Design" color="#FFC2C2" fillcolor="#FFEBEB" shape=preparation style=filled]
+	N3 [label="Diagnostic Tool Development" color="#FFC2C2" fillcolor="#FFEBEB" shape=box style=filled]
+	N4 [label="Biocontainment Strategies" color="#94C0C0" fillcolor="#CADEDE" shape=parallelogram style=filled]
+	N5 [label="Vaccine Synthesis" color="#FFC2C2" fillcolor="#FFEBEB" shape=rectangle style=filled]
+	N6 [label="Biofuel Production" color="#FFC2C2" fillcolor="#FFEBEB" shape=rect style=filled]
+	N7 [label="Directed Evolution Automation" color="#E57373" fillcolor="#FFEBEE" shape=vnode_shape style=filled]
+	N8 [label="Bio_computation" color="#FFC2C2" fillcolor="#FFEBEB" shape=document style=filled]
+	N0 -> N1 [color="#94C0C0" penwidth=1.5 style=dashed label="ferments" dir=forward]
+	N1 -> N2 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#94C0C0" penwidth=1.5 style=dashed label="licenses" dir=forward]
+	N3 -> N4 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#E57373" penwidth=1.5 style=dashed label="fuels_generates" dir=forward]
+	N5 -> N6 [color="#E57373" penwidth=1.5 style=solid label="synthesizes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="models" dir=forward]
+	N7 -> N8 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N7 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_119.txt b/test/diagrams/scanned_medium/diagrams_119.txt
new file mode 100644
index 0000000000000000000000000000000000000000..51798657a86e7b1bc6cf084bae642df072640c80
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_119.txt
@@ -0,0 +1,9 @@
+<Biocontainment Strategies, fuels_generates, Vaccine Synthesis>
+<Biofuel Production, models, Directed Evolution Automation>
+<Diagnostic Tool Development, connectedTo, Biocontainment Strategies>
+<Directed Evolution Automation, connectedTo, Bio_computation>
+<Gene Synthesis Platforms, ferments, Gene Therapy Delivery Systems>
+<Gene Therapy Delivery Systems, connectedTo, Protein Design>
+<Protein Design, connectedTo, Directed Evolution Automation>
+<Protein Design, licenses, Diagnostic Tool Development>
+<Vaccine Synthesis, synthesizes, Biofuel Production>
diff --git a/test/diagrams/scanned_medium/diagrams_12.dot b/test/diagrams/scanned_medium/diagrams_12.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d53577a09dceb14aaf0b2627680db4f6f3a84a27
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_12.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=LR
+	N0 [label="Spa Appointment" color="#A1D7CD" fillcolor="#EDF5F3" shape=inputoutput style=filled]
+	N1 [label="Sightseeing Scheduling" color="#03A9F4" fillcolor="#B3E5FC" shape=preparation style=filled]
+	N2 [label="Baggage Handling" color="#A1D7CD" fillcolor="#EDF5F3" shape=predefinedprocess style=filled]
+	N3 [label="Language Translation Service" color="#A1D7CD" fillcolor="#EDF5F3" shape=vnode_shape style=filled]
+	N4 [label="Passport Renewal Assistance" color="#AED581" fillcolor="#F0F4C3" shape=document style=filled]
+	N5 [label="Hotel Check_in" color="#AED581" fillcolor="#F0F4C3" shape=action style=filled]
+	N6 [label="Airport Transfer" color="#A1D7CD" fillcolor="#EDF5F3" shape=database style=filled]
+	N7 [label="Emergency Assistance" color="#03A9F4" fillcolor="#B3E5FC" shape=vnode_shape style=filled]
+	N8 [label="Photo Capture" color="#03A9F4" fillcolor="#B3E5FC" shape=inputoutput style=filled]
+	N0 -> N1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#A1D7CD" penwidth=1.5 style=dashed label="sells" dir=forward]
+	N2 -> N3 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#03A9F4" penwidth=1.5 style=solid label="books" dir=forward]
+	N4 -> N5 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#03A9F4" penwidth=1.5 style=dashed label="assigns" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N0 [color="#03A9F4" penwidth=1.5 style=solid label="partners" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_12.txt b/test/diagrams/scanned_medium/diagrams_12.txt
new file mode 100644
index 0000000000000000000000000000000000000000..aeda37bdc7fefa2f3faf70750b4764bdd6d545c0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_12.txt
@@ -0,0 +1,9 @@
+<Airport Transfer, assigns, Emergency Assistance>
+<Baggage Handling, connectedTo, Language Translation Service>
+<Emergency Assistance, connectedTo, Photo Capture>
+<Hotel Check_in, connectedTo, Airport Transfer>
+<Language Translation Service, books, Passport Renewal Assistance>
+<Passport Renewal Assistance, connectedTo, Hotel Check_in>
+<Passport Renewal Assistance, partners, Spa Appointment>
+<Sightseeing Scheduling, sells, Baggage Handling>
+<Spa Appointment, connectedTo, Sightseeing Scheduling>
diff --git a/test/diagrams/scanned_medium/diagrams_120.dot b/test/diagrams/scanned_medium/diagrams_120.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9caaaa4d7164c71913a19c80c505b22717a31b1e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_120.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=RL
+	N0 [label="AI in Education" color="#F7BEE0" fillcolor="#FAEBF3" shape=diamond style=filled]
+	N1 [label="Augmented Reality in Education" color="#94C0C0" fillcolor="#CADEDE" shape=preparation style=filled]
+	N2 [label="EdTech Hardware Solutions" color="#FF8A65" fillcolor="#FBE9E7" shape=diamond style=filled]
+	N3 [label="Interactive Content Creation" color="#94C0C0" fillcolor="#CADEDE" shape=hexagon style=filled]
+	N4 [label="Personalized Learning Paths" color="#94C0C0" fillcolor="#CADEDE" shape=hexagon style=filled]
+	N5 [label="Virtual Classrooms" color="#FF8A65" fillcolor="#FBE9E7" shape=multipledocuments style=filled]
+	N6 [label="Gamified Learning" color="#F7BEE0" fillcolor="#FAEBF3" shape=rect style=filled]
+	N7 [label="Curriculum Digitization" color="#94C0C0" fillcolor="#CADEDE" shape=diamond style=filled]
+	N8 [label="Competency_Based Learning Platforms" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N9 [label="Accessibility in EdTech" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N0 -> N1 [color="#FF8A65" penwidth=1.5 style=solid label="manages" dir=forward]
+	N1 -> N2 [color="#FF8A65" penwidth=1.5 style=solid label="reports" dir=forward]
+	N2 -> N3 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#94C0C0" penwidth=1.5 style=solid label="teachers_trains" 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="#000000" penwidth=1.5 style=solid label="AR or VR_uses" dir=forward]
+	N7 -> N8 [color="#F7BEE0" penwidth=1.5 style=dashed label="AI_applies" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed label="partners" dir=forward]
+	N7 -> N1 [color="#000000" penwidth=1.5 style=dashed label="researches" dir=forward]
+	N8 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_120.txt b/test/diagrams/scanned_medium/diagrams_120.txt
new file mode 100644
index 0000000000000000000000000000000000000000..76532927238a2374f3e9e22e5ae4b99b541454e0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_120.txt
@@ -0,0 +1,11 @@
+<AI in Education, manages, Augmented Reality in Education>
+<Augmented Reality in Education, reports, EdTech Hardware Solutions>
+<Competency_Based Learning Platforms, connectedTo, EdTech Hardware Solutions>
+<Competency_Based Learning Platforms, partners, Accessibility in EdTech>
+<Curriculum Digitization, AI_applies, Competency_Based Learning Platforms>
+<Curriculum Digitization, researches, Augmented Reality in Education>
+<EdTech Hardware Solutions, connectedTo, Interactive Content Creation>
+<Gamified Learning, AR or VR_uses, Curriculum Digitization>
+<Interactive Content Creation, teachers_trains, Personalized Learning Paths>
+<Personalized Learning Paths, connectedTo, Virtual Classrooms>
+<Virtual Classrooms, connectedTo, Gamified Learning>
diff --git a/test/diagrams/scanned_medium/diagrams_121.dot b/test/diagrams/scanned_medium/diagrams_121.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c3cddd4f9efe3ae245652845bf9a3ab89c764f44
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_121.dot
@@ -0,0 +1,39 @@
+digraph {
+	rankdir=TB
+	N0 [label="Temperature Monitoring" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+	N1 [label="Numerical Weather Prediction" color="#AED581" fillcolor="#F0F4C3" shape=vnode_shape style=filled]
+	N2 [label="Weather Forecasting" color="#A2D0FF" fillcolor="#E8F0FF" shape=document style=filled]
+	N3 [label="Climate Change Impact Study" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N4 [label="Synoptic Chart Analysis" color="#E91E63" fillcolor="#FCE4EC" shape=database style=filled]
+	N5 [label="Satellite Meteorology" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	N6 [label="Seasonal Outlook Preparation" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N7 [label="Hurricane Trajectory Modeling" color="#AED581" fillcolor="#F0F4C3" shape=document style=filled]
+	N8 [label="Pollution Dispersion Modeling" color="#AED581" fillcolor="#F0F4C3" shape=parallelogram style=filled]
+	S1 [label="" color="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Severe Weather Warning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Severe Weather Warning"
+		nest0_0 [label="Storm Tracking" color="#A2D0FF" fillcolor="#E8F0FF" shape=document style=filled]
+		nest0_1 [label="Flood Prediction" color="#AED581" fillcolor="#F0F4C3" shape=vnode_shape style=filled]
+		nest0_2 [label="Atmospheric Sounding" color="#AED581" fillcolor="#F0F4C3" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#AED581" penwidth=1.5 style=dashed label="distributes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="generates" dir=forward]
+	N7 -> N8 [color="#AED581" penwidth=1.5 style=solid label="collects" dir=forward]
+	nest0_0 -> nest0_1 [color="#A2D0FF" penwidth=1.5 style=dashed label="assesses" dir=forward]
+	nest0_1 -> nest0_2 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N8 [color="#A2D0FF" penwidth=1.5 style=dashed label="forecasts" dir=forward]
+	N3 -> S1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N1 -> N5 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_121.txt b/test/diagrams/scanned_medium/diagrams_121.txt
new file mode 100644
index 0000000000000000000000000000000000000000..165fd96c55cd630c3b9ca096ab4c89aab292aa5d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_121.txt
@@ -0,0 +1,17 @@
+<Atmospheric Sounding, connectedTo, Flood Prediction>
+<Atmospheric Sounding, forecasts, Pollution Dispersion Modeling>
+<Climate Change Impact Study, connectedTo, Satellite Meteorology>
+<Climate Change Impact Study, connectedTo, Seasonal Outlook Preparation>
+<Climate Change Impact Study, connectedTo, Synoptic Chart Analysis>
+<Flood Prediction, connectedTo, Atmospheric Sounding>
+<Hurricane Trajectory Modeling, collects, Pollution Dispersion Modeling>
+<Numerical Weather Prediction, connectedTo, Satellite Meteorology>
+<Numerical Weather Prediction, connectedTo, Weather Forecasting>
+<Satellite Meteorology, distributes, Seasonal Outlook Preparation>
+<Seasonal Outlook Preparation, connectedTo, Storm Tracking>
+<Seasonal Outlook Preparation, generates, Hurricane Trajectory Modeling>
+<Storm Tracking, assesses, Flood Prediction>
+<Synoptic Chart Analysis, connectedTo, Satellite Meteorology>
+<Synoptic Chart Analysis, connectedTo, Storm Tracking>
+<Temperature Monitoring, connectedTo, Numerical Weather Prediction>
+<Weather Forecasting, connectedTo, Climate Change Impact Study>
diff --git a/test/diagrams/scanned_medium/diagrams_122.dot b/test/diagrams/scanned_medium/diagrams_122.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3e90e267d98214d32110fd05d2f2fa6c9489b6ba
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_122.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=TB
+	N0 [label="Boundary Layer Study" color="#9575CD" fillcolor="#EDE7F6" shape=multipledocuments style=filled]
+	N1 [label="Synoptic Chart Analysis" color="#FFD54F" fillcolor="#FFF8E1" shape=rectangle style=filled]
+	N2 [label="Severe Weather Warning" color="#FFD54F" fillcolor="#FFF8E1" shape=inputoutput style=filled]
+	N3 [label="Drought Monitoring" color="#A1887F" fillcolor="#EFEBE9" shape=rect style=filled]
+	N4 [label="Climate Change Impact Study" color="#9575CD" fillcolor="#EDE7F6" shape=rectangle style=filled]
+	N5 [label="Arctic Weather Research" color="#9575CD" fillcolor="#EDE7F6" shape=action style=filled]
+	N6 [label="Numerical Weather Prediction" color="#9575CD" fillcolor="#EDE7F6" shape=preparation style=filled]
+	N7 [label="Aviation Weather Briefing" color="#9575CD" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	N8 [label="Atmospheric Sounding" color="#A1887F" fillcolor="#EFEBE9" shape=vnode_shape style=filled]
+	N9 [label="Agricultural Weather Advisory" color="#9575CD" fillcolor="#EDE7F6" 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="#A1887F" fillcolor="#EFEBE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Atmospheric Data Collection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Atmospheric Data Collection"
+		nest0_0 [label="Weather Forecasting" color="#9575CD" fillcolor="#EDE7F6" shape=database style=filled]
+		nest0_1 [label="Hurricane Trajectory Modeling" color="#FFD54F" fillcolor="#FFF8E1" shape=inputoutput style=filled]
+		nest0_2 [label="Public Weather Briefing" color="#A1887F" fillcolor="#EFEBE9" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="forecasts" dir=forward]
+	N7 -> N8 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#A1887F" 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_0 [color="#A1887F" penwidth=1.5 style=dashed label="classifies" dir=forward]
+	nest0_2 -> N1 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N2 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#9575CD" penwidth=1.5 style=dashed label="disseminates" dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_122.txt b/test/diagrams/scanned_medium/diagrams_122.txt
new file mode 100644
index 0000000000000000000000000000000000000000..396074e034f01f2aface3853377bd05bd3ef4871
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_122.txt
@@ -0,0 +1,18 @@
+<Arctic Weather Research, connectedTo, Numerical Weather Prediction>
+<Atmospheric Sounding, connectedTo, Agricultural Weather Advisory>
+<Aviation Weather Briefing, classifies, Weather Forecasting>
+<Aviation Weather Briefing, connectedTo, Atmospheric Sounding>
+<Boundary Layer Study, connectedTo, Arctic Weather Research>
+<Boundary Layer Study, connectedTo, Aviation Weather Briefing>
+<Boundary Layer Study, connectedTo, Severe Weather Warning>
+<Boundary Layer Study, connectedTo, Synoptic Chart Analysis>
+<Boundary Layer Study, disseminates, Climate Change Impact Study>
+<Climate Change Impact Study, connectedTo, Arctic Weather Research>
+<Drought Monitoring, connectedTo, Climate Change Impact Study>
+<Hurricane Trajectory Modeling, connectedTo, Public Weather Briefing>
+<Numerical Weather Prediction, forecasts, Aviation Weather Briefing>
+<Public Weather Briefing, connectedTo, Synoptic Chart Analysis>
+<Severe Weather Warning, connectedTo, Drought Monitoring>
+<Synoptic Chart Analysis, connectedTo, Arctic Weather Research>
+<Synoptic Chart Analysis, connectedTo, Severe Weather Warning>
+<Weather Forecasting, connectedTo, Hurricane Trajectory Modeling>
diff --git a/test/diagrams/scanned_medium/diagrams_123.txt b/test/diagrams/scanned_medium/diagrams_123.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8edb781fd83112d86fef366eb6032364f063ed0f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_123.txt
@@ -0,0 +1,14 @@
+<Cloud Observation, connectedTo, Flood Prediction>
+<Drought Monitoring, connectedTo, Flood Prediction>
+<Drought Monitoring, connectedTo, Meteorological Station Maintenance>
+<Drought Monitoring, studies, Cloud Observation>
+<Flood Prediction, connectedTo, Ocean_Atmosphere Interaction Study>
+<Flood Prediction, connectedTo, Weather Forecasting>
+<Hurricane Trajectory Modeling, connectedTo, Storm Tracking>
+<Meteorological Station Maintenance, connectedTo, Cloud Observation>
+<Meteorological Station Maintenance, connectedTo, Flood Prediction>
+<Meteorological Station Maintenance, connectedTo, Tropical Cyclone Analysis>
+<Meteorological Station Maintenance, receives, Weather Forecasting>
+<Ocean_Atmosphere Interaction Study, deploys, Tropical Cyclone Analysis>
+<Storm Tracking, alerts, Cloud Observation>
+<Tropical Cyclone Analysis, retrieves, Hurricane Trajectory Modeling>
diff --git a/test/diagrams/scanned_medium/diagrams_124.dot b/test/diagrams/scanned_medium/diagrams_124.dot
new file mode 100644
index 0000000000000000000000000000000000000000..04e5d3026ce97d34ec7227fba376f0f38e98cfd1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_124.dot
@@ -0,0 +1,49 @@
+digraph {
+	rankdir=LR
+	N0 [label="Organics Collection" color="#61CAC3" fillcolor="#C2E8E6" shape=hexagon style=filled]
+	N1 [label="Waste Audit" color="#C0CA33" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N2 [label="Landfill Operation" color="#61CAC3" fillcolor="#C2E8E6" shape=hexagon style=filled]
+	N3 [label="Material Recovery Facility Operation" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+	N4 [label="Waste Characterization Study" color="#388E3C" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+	N5 [label="Construction and Demolition Waste Management" color="#C0CA33" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N6 [label="Hazardous Waste Disposal" color="#388E3C" fillcolor="#F1F8E9" shape=rect style=filled]
+	N7 [label="Recycling Processing" color="#C0CA33" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	N8 [label="Anaerobic Digestion" color="#388E3C" fillcolor="#F1F8E9" shape=document style=filled]
+	N9 [label="Textile Recycling" color="#388E3C" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+	N10 [label="Paper Recycling" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+	N11 [label="Waste Logistics Optimization" color="#C0CA33" fillcolor="#F9FBE7" shape=box style=filled]
+	N12 [label="Landfill Gas Collection" color="#61CAC3" fillcolor="#C2E8E6" shape=document style=filled]
+	N13 [label="Waste Management Data Analytics" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	S0 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Container Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Container Management"
+		nest0_0 [label="Public Education on Waste" color="#C0CA33" fillcolor="#F9FBE7" shape=rect style=filled]
+		nest0_1 [label="Waste_to_Energy Conversion" color="#C0CA33" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+		nest0_2 [label="Community Recycling Programs" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+		nest0_3 [label="Zero Waste Initiatives" color="#C0CA33" fillcolor="#F9FBE7" shape=box style=filled]
+	}
+	N0 -> N1 [color="#61CAC3" penwidth=1.5 style=dashed label="designs" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#61CAC3" penwidth=1.5 style=dashed label="incinerates" dir=forward]
+	N11 -> N12 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#388E3C" penwidth=1.5 style=solid label="compacts" dir=forward]
+	nest0_0 -> nest0_1 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N13 [color="#388E3C" penwidth=1.5 style=solid label="reclaims" dir=forward]
+	N2 -> S0 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed label="extracts" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_124.txt b/test/diagrams/scanned_medium/diagrams_124.txt
new file mode 100644
index 0000000000000000000000000000000000000000..965e68d296bfb1bce5f18e0328f64824c65de4da
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_124.txt
@@ -0,0 +1,21 @@
+<Anaerobic Digestion, connectedTo, Textile Recycling>
+<Community Recycling Programs, connectedTo, Zero Waste Initiatives>
+<Construction and Demolition Waste Management, connectedTo, Hazardous Waste Disposal>
+<Hazardous Waste Disposal, connectedTo, Recycling Processing>
+<Landfill Gas Collection, compacts, Waste Management Data Analytics>
+<Landfill Operation, connectedTo, Anaerobic Digestion>
+<Landfill Operation, connectedTo, Material Recovery Facility Operation>
+<Landfill Operation, connectedTo, Waste Management Data Analytics>
+<Material Recovery Facility Operation, connectedTo, Waste Characterization Study>
+<Organics Collection, designs, Waste Audit>
+<Paper Recycling, incinerates, Waste Logistics Optimization>
+<Public Education on Waste, connectedTo, Waste_to_Energy Conversion>
+<Public Education on Waste, extracts, Zero Waste Initiatives>
+<Recycling Processing, connectedTo, Anaerobic Digestion>
+<Textile Recycling, connectedTo, Paper Recycling>
+<Textile Recycling, connectedTo, Public Education on Waste>
+<Waste Audit, connectedTo, Landfill Operation>
+<Waste Characterization Study, connectedTo, Construction and Demolition Waste Management>
+<Waste Logistics Optimization, connectedTo, Landfill Gas Collection>
+<Waste_to_Energy Conversion, connectedTo, Community Recycling Programs>
+<Zero Waste Initiatives, reclaims, Waste Management Data Analytics>
diff --git a/test/diagrams/scanned_medium/diagrams_125.dot b/test/diagrams/scanned_medium/diagrams_125.dot
new file mode 100644
index 0000000000000000000000000000000000000000..efab203b8cca29cd57487d600e77ad7a977bd18a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_125.dot
@@ -0,0 +1,54 @@
+digraph {
+	rankdir=RL
+	N0 [label="Smart Waste Bins" color="#CB9BE1" fillcolor="#F2E6F5" shape=database style=filled]
+	N1 [label="Leachate Treatment" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N2 [label="Waste Sorting" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N3 [label="Waste Management Policy Development" color="#9575CD" fillcolor="#EDE7F6" shape=diamond style=filled]
+	N4 [label="Paper Recycling" color="#CB9BE1" fillcolor="#F2E6F5" shape=rectangle style=filled]
+	N5 [label="Extended Producer Responsibility" color="#9575CD" fillcolor="#EDE7F6" shape=database style=filled]
+	N6 [label="Waste Compaction" color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+	N7 [label="Electronic Waste Recycling" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+	N8 [label="Waste_to_Energy Conversion" color="#FFCC7A" fillcolor="#FFF6D9" shape=rectangle style=filled]
+	N9 [label="Waste Collection" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+	N10 [label="Illegal Dumping Monitoring" color="#CB9BE1" fillcolor="#F2E6F5" shape=database style=filled]
+	N11 [label="Waste Audit" color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+	N12 [label="Hazardous Waste Disposal" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+	N13 [label="Waste Incineration" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	N14 [label="Recycling Processing" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon 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="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Zero Waste Initiatives {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Zero Waste Initiatives"
+		nest0_0 [label="Anaerobic Digestion" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+		nest0_1 [label="Landfill Gas Collection" color="#CB9BE1" fillcolor="#F2E6F5" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#CB9BE1" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N1 -> N2 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid 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="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#CB9BE1" 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="#9575CD" penwidth=1.5 style=solid label="grades" dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> S0 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N0 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#CB9BE1" penwidth=1.5 style=solid label="extracts" dir=forward]
+	S1 -> N5 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#9575CD" penwidth=1.5 style=solid label="designs" dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N8 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_125.txt b/test/diagrams/scanned_medium/diagrams_125.txt
new file mode 100644
index 0000000000000000000000000000000000000000..32c013e2bf85934f20a12d2e441030bd903f3486
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_125.txt
@@ -0,0 +1,23 @@
+<Anaerobic Digestion, connectedTo, Landfill Gas Collection>
+<Electronic Waste Recycling, connectedTo, Waste_to_Energy Conversion>
+<Extended Producer Responsibility, connectedTo, Waste Compaction>
+<Hazardous Waste Disposal, grades, Waste Incineration>
+<Illegal Dumping Monitoring, connectedTo, Recycling Processing>
+<Illegal Dumping Monitoring, connectedTo, Waste Audit>
+<Illegal Dumping Monitoring, connectedTo, Waste Incineration>
+<Landfill Gas Collection, connectedTo, Paper Recycling>
+<Leachate Treatment, connectedTo, Waste Sorting>
+<Paper Recycling, connectedTo, Extended Producer Responsibility>
+<Smart Waste Bins, connectedTo, Extended Producer Responsibility>
+<Smart Waste Bins, extracts, Waste Incineration>
+<Smart Waste Bins, optimizes, Leachate Treatment>
+<Waste Audit, connectedTo, Hazardous Waste Disposal>
+<Waste Collection, connectedTo, Illegal Dumping Monitoring>
+<Waste Compaction, connectedTo, Anaerobic Digestion>
+<Waste Compaction, connectedTo, Electronic Waste Recycling>
+<Waste Compaction, designs, Waste_to_Energy Conversion>
+<Waste Incineration, connectedTo, Recycling Processing>
+<Waste Management Policy Development, connectedTo, Paper Recycling>
+<Waste Sorting, connectedTo, Waste Management Policy Development>
+<Waste Sorting, connectedTo, Waste_to_Energy Conversion>
+<Waste_to_Energy Conversion, connectedTo, Waste Collection>
diff --git a/test/diagrams/scanned_medium/diagrams_126.dot b/test/diagrams/scanned_medium/diagrams_126.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e1e8fef37de8cf274ac7ac99e6dde90960c93888
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_126.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=LR
+	N0 [label="Construction and Demolition Waste Management" color="#FFF176" fillcolor="#FFFDE7" shape=multipledocuments style=filled]
+	N1 [label="Smart Waste Bins" color="#DCE775" fillcolor="#F9FBE7" shape=rect style=filled]
+	N2 [label="Waste_to_Energy Conversion" color="#DCE775" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N3 [label="Waste Management Data Analytics" color="#FFF176" fillcolor="#FFFDE7" shape=database style=filled]
+	N4 [label="Industrial Waste Management" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N5 [label="Public Education on Waste" color="#FFF176" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N6 [label="Closed_Loop Systems" color="#94C0C0" fillcolor="#CADEDE" shape=diamond style=filled]
+	N7 [label="Recycling Processing" color="#DCE775" fillcolor="#F9FBE7" shape=database style=filled]
+	N8 [label="Composting" color="#94C0C0" fillcolor="#CADEDE" shape=multipledocuments style=filled]
+	S0 [label="" color="#94C0C0" fillcolor="#CADEDE" 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]
+	M1 [label="" color="#DCE775" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Glass Recycling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Glass Recycling"
+		nest0_0 [label="Material Recovery Facility Operation" color="#FFF176" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+		nest0_1 [label="Waste Compaction" color="#DCE775" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#94C0C0" penwidth=1.5 style=dashed label="disposes" dir=forward]
+	N3 -> N4 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N7 [color="#000000" penwidth=1.5 style=dashed label="operates" dir=forward]
+	N2 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#DCE775" penwidth=1.5 style=dashed label="converts" dir=forward]
+	N0 -> M0 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed label="reuses" dir=forward]
+	M0 -> N5 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#DCE775" penwidth=1.5 style=solid label="inspects" dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed label="transports" dir=forward]
+	M1 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_126.txt b/test/diagrams/scanned_medium/diagrams_126.txt
new file mode 100644
index 0000000000000000000000000000000000000000..989171f7729dacefa354fddcfc57a90e63159d3e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_126.txt
@@ -0,0 +1,18 @@
+<Closed_Loop Systems, connectedTo, Recycling Processing>
+<Construction and Demolition Waste Management, connectedTo, Public Education on Waste>
+<Construction and Demolition Waste Management, connectedTo, Smart Waste Bins>
+<Construction and Demolition Waste Management, inspects, Waste Management Data Analytics>
+<Industrial Waste Management, connectedTo, Material Recovery Facility Operation>
+<Industrial Waste Management, connectedTo, Public Education on Waste>
+<Material Recovery Facility Operation, connectedTo, Waste Compaction>
+<Public Education on Waste, connectedTo, Closed_Loop Systems>
+<Recycling Processing, connectedTo, Composting>
+<Smart Waste Bins, connectedTo, Waste_to_Energy Conversion>
+<Smart Waste Bins, converts, Public Education on Waste>
+<Smart Waste Bins, transports, Waste Management Data Analytics>
+<Waste Compaction, operates, Recycling Processing>
+<Waste Management Data Analytics, connectedTo, Industrial Waste Management>
+<Waste_to_Energy Conversion, connectedTo, Closed_Loop Systems>
+<Waste_to_Energy Conversion, connectedTo, Composting>
+<Waste_to_Energy Conversion, disposes, Waste Management Data Analytics>
+<Waste_to_Energy Conversion, reuses, Public Education on Waste>
diff --git a/test/diagrams/scanned_medium/diagrams_127.dot b/test/diagrams/scanned_medium/diagrams_127.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d92969bf1f494a7dbbb840a5af3f9c254877b83b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_127.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=TB
+	N0 [label="Climate Change Adaptation for Water" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N1 [label="Drinking Water Standards Compliance" color="#73C6BC" fillcolor="#D0EFEE" shape=document style=filled]
+	N2 [label="Pollution Source Identification" color="#D3EB9F" fillcolor="#F8FDD3" shape=predefinedprocess style=filled]
+	N3 [label="Hydrological Modeling" color="#D3EB9F" fillcolor="#F8FDD3" shape=rect style=filled]
+	N4 [label="Water Treatment" color="#73C6BC" fillcolor="#D0EFEE" shape=vnode_shape style=filled]
+	N5 [label="Water Distribution" color="#D3EB9F" fillcolor="#F8FDD3" shape=document style=filled]
+	N6 [label="Industrial Water Use Optimization" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+	N7 [label="Water Conservation Planning" color="#CFCFCF" fillcolor="#F6F6F6" shape=rectangle style=filled]
+	N8 [label="Groundwater Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+	N9 [label="Dam Management" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+	N10 [label="Stormwater Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=vnode_shape style=filled]
+	N11 [label="Water Quality Monitoring" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+	N12 [label="Agricultural Water Use Efficiency" color="#CFCFCF" fillcolor="#F6F6F6" shape=predefinedprocess style=filled]
+	S0 [label="" color="#D3EB9F" fillcolor="#F8FDD3" 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_Drought Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Drought Management"
+		nest0_0 [label="Water Loss Detection" color="#73C6BC" fillcolor="#D0EFEE" shape=rectangle style=filled]
+		nest0_1 [label="Water Infrastructure Maintenance" color="#D3EB9F" fillcolor="#F8FDD3" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#CFCFCF" 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="#73C6BC" penwidth=1.5 style=dashed label="plans" dir=forward]
+	N4 -> N5 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#73C6BC" penwidth=1.5 style=dashed label="collects" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="manages" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N7 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#D3EB9F" penwidth=1.5 style=dashed label="audits" dir=forward]
+	N2 -> M1 [color="#73C6BC" penwidth=1.5 style=solid label="controls" dir=forward]
+	M1 -> N8 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_127.txt b/test/diagrams/scanned_medium/diagrams_127.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0d289bf44248a4e1464a35f2d5162e391c74e53f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_127.txt
@@ -0,0 +1,19 @@
+<Climate Change Adaptation for Water, connectedTo, Drinking Water Standards Compliance>
+<Dam Management, connectedTo, Stormwater Management>
+<Drinking Water Standards Compliance, audits, Groundwater Management>
+<Drinking Water Standards Compliance, connectedTo, Pollution Source Identification>
+<Groundwater Management, connectedTo, Dam Management>
+<Hydrological Modeling, plans, Water Treatment>
+<Industrial Water Use Optimization, manages, Water Conservation Planning>
+<Pollution Source Identification, connectedTo, Groundwater Management>
+<Pollution Source Identification, connectedTo, Hydrological Modeling>
+<Pollution Source Identification, connectedTo, Water Treatment>
+<Pollution Source Identification, controls, Groundwater Management>
+<Stormwater Management, connectedTo, Water Quality Monitoring>
+<Water Conservation Planning, connectedTo, Groundwater Management>
+<Water Distribution, collects, Industrial Water Use Optimization>
+<Water Infrastructure Maintenance, connectedTo, Water Conservation Planning>
+<Water Loss Detection, connectedTo, Water Infrastructure Maintenance>
+<Water Quality Monitoring, connectedTo, Agricultural Water Use Efficiency>
+<Water Treatment, connectedTo, Water Distribution>
+<Water Treatment, connectedTo, Water Loss Detection>
diff --git a/test/diagrams/scanned_medium/diagrams_128.dot b/test/diagrams/scanned_medium/diagrams_128.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2a3c47827e8043ae2b3b90b90076211d3f54a74a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_128.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=RL
+	N0 [label="Transboundary Water Management" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N1 [label="Climate Change Adaptation for Water" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+	N2 [label="Billing and Revenue Management" color="#FF8A65" fillcolor="#FBE9E7" shape=predefinedprocess style=filled]
+	N3 [label="Sewer System Inspection" color="#CB9BE1" fillcolor="#F2E6F5" shape=rectangle style=filled]
+	N4 [label="Water Distribution" color="#CB9BE1" fillcolor="#F2E6F5" shape=hexagon style=filled]
+	N5 [label="Water Conservation Planning" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N6 [label="Water Rights Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=diamond style=filled]
+	N7 [label="Aquifer Recharge" color="#FF8A65" fillcolor="#FBE9E7" shape=database style=filled]
+	N8 [label="Stormwater Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+	N9 [label="Public Awareness Campaigns" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+	N10 [label="Water Resource Planning" color="#CB9BE1" fillcolor="#F2E6F5" shape=predefinedprocess style=filled]
+	N11 [label="Smart Water Networks" color="#FFC107" fillcolor="#FFECB3" shape=preparation style=filled]
+	M0 [label="" color="#FFC107" fillcolor="#FFECB3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Reservoir Operation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Reservoir Operation"
+		nest0_0 [label="Piping Network Repair" color="#FF8A65" fillcolor="#FBE9E7" shape=multipledocuments style=filled]
+		nest0_1 [label="Pollution Source Identification" color="#FFC107" fillcolor="#FFECB3" shape=ellipse style=filled]
+		nest0_2 [label="Wastewater Collection" color="#FFC107" fillcolor="#FFECB3" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CB9BE1" penwidth=1.5 style=solid label="repairs" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#CB9BE1" penwidth=1.5 style=dashed label="consults" dir=forward]
+	N7 -> N8 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid label="supplies" dir=forward]
+	N2 -> nest0_0 [color="#FFC107" penwidth=1.5 style=solid label="pumps" dir=forward]
+	nest0_2 -> N6 [color="#CB9BE1" penwidth=1.5 style=dashed label="tests" dir=forward]
+	N0 -> M0 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#FFC107" penwidth=1.5 style=solid label="constructs" dir=forward]
+	M0 -> N4 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#FF8A65" penwidth=1.5 style=dashed label="recycles" dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid label="responds" dir=forward]
+	M1 -> N9 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_128.txt b/test/diagrams/scanned_medium/diagrams_128.txt
new file mode 100644
index 0000000000000000000000000000000000000000..00a15f7abf182dea721bc85998fad8080d2ff7c0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_128.txt
@@ -0,0 +1,19 @@
+<Aquifer Recharge, connectedTo, Stormwater Management>
+<Aquifer Recharge, recycles, Public Awareness Campaigns>
+<Billing and Revenue Management, connectedTo, Sewer System Inspection>
+<Billing and Revenue Management, pumps, Piping Network Repair>
+<Climate Change Adaptation for Water, connectedTo, Billing and Revenue Management>
+<Climate Change Adaptation for Water, constructs, Water Distribution>
+<Piping Network Repair, connectedTo, Pollution Source Identification>
+<Pollution Source Identification, supplies, Wastewater Collection>
+<Public Awareness Campaigns, connectedTo, Water Resource Planning>
+<Sewer System Inspection, connectedTo, Water Distribution>
+<Stormwater Management, connectedTo, Public Awareness Campaigns>
+<Transboundary Water Management, connectedTo, Climate Change Adaptation for Water>
+<Transboundary Water Management, connectedTo, Water Distribution>
+<Wastewater Collection, tests, Water Rights Management>
+<Water Conservation Planning, connectedTo, Water Rights Management>
+<Water Distribution, repairs, Water Conservation Planning>
+<Water Distribution, responds, Public Awareness Campaigns>
+<Water Resource Planning, connectedTo, Smart Water Networks>
+<Water Rights Management, consults, Aquifer Recharge>
diff --git a/test/diagrams/scanned_medium/diagrams_129.dot b/test/diagrams/scanned_medium/diagrams_129.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a86fa01f7ed9274a6e7e7a6411c618acfdebfb6f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_129.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=LR
+	N0 [label="Reservoir Operation" color="#6FE1D5" fillcolor="#C9EFEC" shape=diamond style=filled]
+	N1 [label="Stormwater Management" color="#FFC107" fillcolor="#FFECB3" shape=box style=filled]
+	N2 [label="Piping Network Repair" color="#FFC107" fillcolor="#FFECB3" shape=predefinedprocess style=filled]
+	N3 [label="Irrigation Management" color="#FFC107" fillcolor="#FFECB3" shape=database style=filled]
+	N4 [label="Wastewater Treatment" color="#6FE1D5" fillcolor="#C9EFEC" shape=vnode_shape style=filled]
+	N5 [label="Wastewater Collection" color="#FFF9AE" fillcolor="#FFFCE6" shape=database style=filled]
+	N6 [label="Rainwater Harvesting" color="#6FE1D5" fillcolor="#C9EFEC" shape=predefinedprocess style=filled]
+	N7 [label="Billing and Revenue Management" color="#FFF9AE" fillcolor="#FFFCE6" shape=hexagon style=filled]
+	N8 [label="Industrial Water Use Optimization" color="#FFF9AE" fillcolor="#FFFCE6" shape=vnode_shape style=filled]
+	N9 [label="Public Awareness Campaigns" color="#FFC107" fillcolor="#FFECB3" shape=rectangle style=filled]
+	N10 [label="Water Conservation Planning" color="#6FE1D5" fillcolor="#C9EFEC" shape=vnode_shape style=filled]
+	N11 [label="Water Meter Reading" color="#6FE1D5" fillcolor="#C9EFEC" shape=multipledocuments style=filled]
+	N12 [label="Water Infrastructure Maintenance" color="#6FE1D5" fillcolor="#C9EFEC" shape=box style=filled]
+	S0 [label="" color="#FFF9AE" fillcolor="#FFFCE6" 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_Greywater Recycling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Greywater Recycling"
+		nest0_0 [label="Smart Water Networks" color="#FFF9AE" fillcolor="#FFFCE6" shape=database style=filled]
+		nest0_1 [label="Water Quality Monitoring" color="#6FE1D5" fillcolor="#C9EFEC" shape=rectangle style=filled]
+		nest0_2 [label="Dam Management" color="#6FE1D5" fillcolor="#C9EFEC" shape=document style=filled]
+		nest0_3 [label="Climate Change Adaptation for Water" color="#6FE1D5" fillcolor="#C9EFEC" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFC107" penwidth=1.5 style=solid label="predicts" dir=forward]
+	N2 -> N3 [color="#6FE1D5" penwidth=1.5 style=solid label="evaluates" 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="#6FE1D5" penwidth=1.5 style=solid label="detects" dir=forward]
+	N6 -> N7 [color="#6FE1D5" penwidth=1.5 style=dashed label="permits" dir=forward]
+	N7 -> N8 [color="#FFF9AE" penwidth=1.5 style=dashed label="mitigates" dir=forward]
+	N8 -> N9 [color="#6FE1D5" penwidth=1.5 style=solid label="filters" dir=forward]
+	N9 -> N10 [color="#FFC107" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N10 -> N11 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest0_0 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N10 [color="#FFC107" penwidth=1.5 style=solid label="conserves" dir=forward]
+	N5 -> S0 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#000000" penwidth=1.5 style=dashed 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_medium/diagrams_129.txt b/test/diagrams/scanned_medium/diagrams_129.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e59e2555afa222c6730375ff68ae56bfed18e9a7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_129.txt
@@ -0,0 +1,21 @@
+<Billing and Revenue Management, mitigates, Industrial Water Use Optimization>
+<Climate Change Adaptation for Water, conserves, Water Conservation Planning>
+<Dam Management, connectedTo, Climate Change Adaptation for Water>
+<Industrial Water Use Optimization, connectedTo, Smart Water Networks>
+<Industrial Water Use Optimization, connectedTo, Water Infrastructure Maintenance>
+<Industrial Water Use Optimization, filters, Public Awareness Campaigns>
+<Irrigation Management, connectedTo, Wastewater Treatment>
+<Piping Network Repair, evaluates, Irrigation Management>
+<Public Awareness Campaigns, optimizes, Water Conservation Planning>
+<Rainwater Harvesting, permits, Billing and Revenue Management>
+<Reservoir Operation, connectedTo, Stormwater Management>
+<Smart Water Networks, connectedTo, Water Quality Monitoring>
+<Stormwater Management, predicts, Piping Network Repair>
+<Wastewater Collection, connectedTo, Industrial Water Use Optimization>
+<Wastewater Collection, connectedTo, Water Conservation Planning>
+<Wastewater Collection, detects, Rainwater Harvesting>
+<Wastewater Treatment, connectedTo, Wastewater Collection>
+<Wastewater Treatment, connectedTo, Water Infrastructure Maintenance>
+<Water Conservation Planning, connectedTo, Water Meter Reading>
+<Water Meter Reading, connectedTo, Water Infrastructure Maintenance>
+<Water Quality Monitoring, connectedTo, Dam Management>
diff --git a/test/diagrams/scanned_medium/diagrams_13.dot b/test/diagrams/scanned_medium/diagrams_13.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6867dfd7c64b7c16a725ac07969842e10725d034
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_13.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=LR
+	N0 [label="Commission Distribution" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	N1 [label="Offer Submission" color="#A188DB" fillcolor="#DED7F0" shape=ellipse style=filled]
+	N2 [label="Eviction Process" color="#A188DB" fillcolor="#DED7F0" shape=rectangle style=filled]
+	N3 [label="Closing Meeting" color="#A188DB" fillcolor="#DED7F0" shape=ellipse style=filled]
+	N4 [label="Loan Pre_Approval" color="#A188DB" fillcolor="#DED7F0" shape=rect style=filled]
+	N5 [label="Maintenance Request" color="#388E3C" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N6 [label="Investment Property Analysis" color="#388E3C" fillcolor="#C8E6C9" shape=rect style=filled]
+	N7 [label="Property Marketing" color="#388E3C" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N8 [label="Zoning Compliance" color="#388E3C" fillcolor="#C8E6C9" shape=rect style=filled]
+	N9 [label="Virtual Tour Creation" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N10 [label="Market Trend Analysis" color="#A188DB" fillcolor="#DED7F0" shape=database style=filled]
+	N11 [label="Renovation Planning" color="#A188DB" fillcolor="#DED7F0" shape=diamond style=filled]
+	N0 -> N1 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#388E3C" penwidth=1.5 style=dashed label="surveys" dir=forward]
+	N2 -> N3 [color="#A188DB" penwidth=1.5 style=dashed label="buys" dir=forward]
+	N3 -> N4 [color="#A188DB" penwidth=1.5 style=dashed label="manages" dir=forward]
+	N4 -> N5 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#388E3C" penwidth=1.5 style=solid label="consults" dir=forward]
+	N6 -> N7 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="transfers" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="sells" dir=forward]
+	N9 -> N10 [color="#A2D0FF" penwidth=1.5 style=solid label="schedules" dir=forward]
+	N10 -> N11 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N4 -> N11 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_130.dot b/test/diagrams/scanned_medium/diagrams_130.dot
new file mode 100644
index 0000000000000000000000000000000000000000..25f17a2a7495cd5f2a8b54af9c371c62e04c1345
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_130.dot
@@ -0,0 +1,38 @@
+digraph {
+	rankdir=BT
+	N0 [label="Deposit_Return Schemes" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+	N1 [label="Sorting and Segregation" color="#388E3C" fillcolor="#F1F8E9" shape=document style=filled]
+	N2 [label="Battery Recycling" color="#FFC107" fillcolor="#FFECB3" shape=diamond style=filled]
+	N3 [label="Recycling Market Development" color="#388E3C" fillcolor="#F1F8E9" shape=multipledocuments style=filled]
+	N4 [label="Advanced Sorting Technologies" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N5 [label="New Product Manufacturing" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N6 [label="Recycling Data Tracking" color="#C0CA33" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N7 [label="End_of_Life Product Management" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	S0 [label="" color="#FFC107" fillcolor="#FFECB3" 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_Mechanical Recycling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mechanical Recycling"
+		nest0_0 [label="Hazardous Material Recovery" color="#FFC107" fillcolor="#FFECB3" shape=parallelogram style=filled]
+		nest0_1 [label="Tyre Recycling" color="#FFC107" fillcolor="#FFECB3" shape=inputoutput style=filled]
+		nest0_2 [label="Life Cycle Assessment" color="#C0CA33" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="recovers" dir=forward]
+	N1 -> N2 [color="#388E3C" penwidth=1.5 style=dashed label="innovates" dir=forward]
+	N2 -> N3 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#C0CA33" penwidth=1.5 style=solid label="collects" dir=forward]
+	nest0_0 -> nest0_1 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FFC107" penwidth=1.5 style=dashed label="bundles" dir=forward]
+	N5 -> nest0_0 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N7 [color="#C0CA33" penwidth=1.5 style=dashed label="classifies" dir=forward]
+	N3 -> S0 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#388E3C" penwidth=1.5 style=solid label="reduces" dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid 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_medium/diagrams_130.txt b/test/diagrams/scanned_medium/diagrams_130.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c66848e481a02b0ecafcb0632e832a5d972c1f67
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_130.txt
@@ -0,0 +1,15 @@
+<Advanced Sorting Technologies, connectedTo, New Product Manufacturing>
+<Battery Recycling, connectedTo, Advanced Sorting Technologies>
+<Battery Recycling, connectedTo, Recycling Market Development>
+<Deposit_Return Schemes, connectedTo, Advanced Sorting Technologies>
+<Deposit_Return Schemes, recovers, Sorting and Segregation>
+<Hazardous Material Recovery, connectedTo, Tyre Recycling>
+<Life Cycle Assessment, classifies, End_of_Life Product Management>
+<New Product Manufacturing, connectedTo, Hazardous Material Recovery>
+<New Product Manufacturing, connectedTo, Recycling Data Tracking>
+<Recycling Data Tracking, collects, End_of_Life Product Management>
+<Recycling Market Development, connectedTo, Advanced Sorting Technologies>
+<Recycling Market Development, connectedTo, New Product Manufacturing>
+<Recycling Market Development, reduces, Recycling Data Tracking>
+<Sorting and Segregation, innovates, Battery Recycling>
+<Tyre Recycling, bundles, Life Cycle Assessment>
diff --git a/test/diagrams/scanned_medium/diagrams_131.dot b/test/diagrams/scanned_medium/diagrams_131.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d371630b069bc0c646344230c9442277cac0b3dc
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_131.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=LR
+	N0 [label="Collection Point Management" color="#4CAF50" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	N1 [label="Recycling Policy Advocacy" color="#42A5F5" fillcolor="#F1F8FF" shape=parallelogram style=filled]
+	N2 [label="Advanced Sorting Technologies" color="#42A5F5" fillcolor="#F1F8FF" shape=action style=filled]
+	N3 [label="Commercial Recycling Solutions" color="#FFE470" fillcolor="#FFFAE0" shape=vnode_shape style=filled]
+	N4 [label="Waste Audit for Recycling" color="#4CAF50" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N5 [label="Recycling Infrastructure Development" color="#42A5F5" fillcolor="#F1F8FF" shape=rectangle style=filled]
+	N6 [label="Paper Recycling" color="#FFE470" fillcolor="#FFFAE0" shape=inputoutput style=filled]
+	N7 [label="Sorting and Segregation" color="#42A5F5" fillcolor="#F1F8FF" shape=rect style=filled]
+	N8 [label="Composting Organic Waste" color="#FFE470" fillcolor="#FFFAE0" shape=document style=filled]
+	N9 [label="Metal Recycling" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+	N10 [label="Glass Recycling" color="#4CAF50" fillcolor="#C8E6C9" shape=rect style=filled]
+	M1 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Waste Stream Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Waste Stream Analysis"
+		nest0_0 [label="Construction Waste Recycling" color="#FFE470" fillcolor="#FFFAE0" shape=database style=filled]
+		nest0_1 [label="Energy Recovery from Non_Recyclables" color="#4CAF50" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#42A5F5" penwidth=1.5 style=dashed label="segregates" 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="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#4CAF50" penwidth=1.5 style=solid label="assesses" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="certifies" dir=forward]
+	N9 -> N10 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N1 -> nest0_0 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	M1 -> N5 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N3 -> N10 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest0_1 [color="#42A5F5" penwidth=1.5 style=dashed label="enforces" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_131.txt b/test/diagrams/scanned_medium/diagrams_131.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7a2f715beaf41f643df90ada15f2860063e66f64
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_131.txt
@@ -0,0 +1,18 @@
+<Advanced Sorting Technologies, connectedTo, Commercial Recycling Solutions>
+<Advanced Sorting Technologies, connectedTo, Recycling Infrastructure Development>
+<Collection Point Management, connectedTo, Recycling Infrastructure Development>
+<Collection Point Management, connectedTo, Recycling Policy Advocacy>
+<Commercial Recycling Solutions, connectedTo, Glass Recycling>
+<Commercial Recycling Solutions, connectedTo, Recycling Infrastructure Development>
+<Commercial Recycling Solutions, connectedTo, Waste Audit for Recycling>
+<Composting Organic Waste, certifies, Metal Recycling>
+<Composting Organic Waste, enforces, Energy Recovery from Non_Recyclables>
+<Construction Waste Recycling, optimizes, Energy Recovery from Non_Recyclables>
+<Energy Recovery from Non_Recyclables, connectedTo, Commercial Recycling Solutions>
+<Metal Recycling, connectedTo, Glass Recycling>
+<Paper Recycling, connectedTo, Sorting and Segregation>
+<Recycling Infrastructure Development, connectedTo, Paper Recycling>
+<Recycling Policy Advocacy, connectedTo, Construction Waste Recycling>
+<Recycling Policy Advocacy, segregates, Advanced Sorting Technologies>
+<Sorting and Segregation, assesses, Composting Organic Waste>
+<Waste Audit for Recycling, connectedTo, Recycling Infrastructure Development>
diff --git a/test/diagrams/scanned_medium/diagrams_132.dot b/test/diagrams/scanned_medium/diagrams_132.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a06f7fb447462fb57718bee769a0c7a067248851
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_132.dot
@@ -0,0 +1,55 @@
+digraph {
+	rankdir=BT
+	N0 [label="Construction Waste Recycling" color="#6EB76D" fillcolor="#E9F7E8" shape=vnode_shape style=filled]
+	N1 [label="Recycling Policy Advocacy" color="#4DB6AC" fillcolor="#E0F2F1" shape=inputoutput style=filled]
+	N2 [label="Commercial Recycling Solutions" color="#6EB76D" fillcolor="#E9F7E8" shape=rectangle style=filled]
+	N3 [label="Waste Stream Analysis" color="#6EB76D" fillcolor="#E9F7E8" shape=rect style=filled]
+	N4 [label="Tyre Recycling" color="#4DB6AC" fillcolor="#E0F2F1" shape=inputoutput style=filled]
+	N5 [label="Deposit_Return Schemes" color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+	N6 [label="Sorting and Segregation" color="#6EB76D" fillcolor="#E9F7E8" shape=rectangle style=filled]
+	N7 [label="Material Purity Testing" color="#4DB6AC" fillcolor="#E0F2F1" shape=diamond style=filled]
+	N8 [label="Recycling Facility Optimization" color="#4DB6AC" fillcolor="#E0F2F1" shape=predefinedprocess style=filled]
+	N9 [label="Recycling Education" color="#4FC3F7" fillcolor="#E1F5FE" shape=rect style=filled]
+	N10 [label="End_of_Life Product Management" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N11 [label="Battery Recycling" color="#6EB76D" fillcolor="#E9F7E8" shape=diamond style=filled]
+	S0 [label="" color="#4FC3F7" fillcolor="#E1F5FE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#4FC3F7" fillcolor="#E1F5FE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#4FC3F7" fillcolor="#E1F5FE" 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_Mechanical Recycling {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mechanical Recycling"
+		nest0_0 [label="Chemical Recycling" color="#4DB6AC" fillcolor="#E0F2F1" shape=preparation style=filled]
+		nest0_1 [label="Hazardous Material Recovery" color="#4FC3F7" fillcolor="#E1F5FE" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#4DB6AC" 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 label="designs" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="treats" dir=forward]
+	N6 -> N7 [color="#4DB6AC" penwidth=1.5 style=solid label="shreds" dir=forward]
+	N7 -> N8 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#4DB6AC" 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="classifies" dir=forward]
+	nest0_0 -> nest0_1 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#6EB76D" penwidth=1.5 style=dashed label="grades" dir=forward]
+	nest0_1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N7 -> S1 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=solid label="reduces" dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid label="educates" dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N4 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#4FC3F7" penwidth=1.5 style=dashed label="partners" dir=forward]
+	N0 -> M1 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_132.txt b/test/diagrams/scanned_medium/diagrams_132.txt
new file mode 100644
index 0000000000000000000000000000000000000000..59eb0c2d6a587e0b10265802098f1d0f57d36b2c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_132.txt
@@ -0,0 +1,25 @@
+<Chemical Recycling, connectedTo, Hazardous Material Recovery>
+<Commercial Recycling Solutions, connectedTo, Tyre Recycling>
+<Commercial Recycling Solutions, connectedTo, Waste Stream Analysis>
+<Construction Waste Recycling, connectedTo, Recycling Policy Advocacy>
+<Construction Waste Recycling, connectedTo, Waste Stream Analysis>
+<Construction Waste Recycling, educates, Tyre Recycling>
+<Deposit_Return Schemes, connectedTo, End_of_Life Product Management>
+<Deposit_Return Schemes, connectedTo, Recycling Education>
+<Deposit_Return Schemes, connectedTo, Recycling Facility Optimization>
+<Deposit_Return Schemes, treats, Sorting and Segregation>
+<End_of_Life Product Management, classifies, Battery Recycling>
+<Hazardous Material Recovery, connectedTo, Tyre Recycling>
+<Material Purity Testing, connectedTo, End_of_Life Product Management>
+<Material Purity Testing, connectedTo, Recycling Education>
+<Material Purity Testing, connectedTo, Recycling Facility Optimization>
+<Material Purity Testing, reduces, Battery Recycling>
+<Recycling Education, connectedTo, End_of_Life Product Management>
+<Recycling Education, grades, Chemical Recycling>
+<Recycling Facility Optimization, connectedTo, Recycling Education>
+<Recycling Policy Advocacy, connectedTo, Commercial Recycling Solutions>
+<Recycling Policy Advocacy, connectedTo, Tyre Recycling>
+<Recycling Policy Advocacy, partners, Waste Stream Analysis>
+<Sorting and Segregation, shreds, Material Purity Testing>
+<Tyre Recycling, connectedTo, Deposit_Return Schemes>
+<Waste Stream Analysis, designs, Tyre Recycling>
diff --git a/test/diagrams/scanned_medium/diagrams_133.dot b/test/diagrams/scanned_medium/diagrams_133.dot
new file mode 100644
index 0000000000000000000000000000000000000000..810326f0486748846a2e6e08fbaab55a08fed702
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_133.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=BT
+	N0 [label="Forest Certification" color="#7986CB" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	N1 [label="Silviculture" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N2 [label="Tree Planting" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N3 [label="Illegal Logging Prevention" color="#7986CB" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	N4 [label="Climate Change Adaptation in Forests" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N5 [label="Forestry Policy Development" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N6 [label="Forestry Education" color="#FFA726" fillcolor="#FFF3E0" shape=database style=filled]
+	N7 [label="Soil Conservation" color="#7986CB" fillcolor="#E8EAF6" shape=document style=filled]
+	N8 [label="Erosion Control" color="#FFA726" fillcolor="#FFF3E0" shape=diamond style=filled]
+	N9 [label="Logging Operations" color="#795548" fillcolor="#D7CCC8" shape=rectangle style=filled]
+	S0 [label="" color="#FFA726" fillcolor="#FFF3E0" 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_Public Access Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Public Access Management"
+		nest0_0 [label="GIS Mapping for Forestry" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+		nest0_1 [label="Forest Land Use Planning" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+		nest0_2 [label="Forest Road Construction" color="#795548" fillcolor="#D7CCC8" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#795548" penwidth=1.5 style=solid label="maintains" dir=forward]
+	N2 -> N3 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="identifies" dir=forward]
+	N4 -> N5 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#795548" penwidth=1.5 style=solid label="develops" dir=forward]
+	N7 -> N8 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#7986CB" penwidth=1.5 style=dashed label="repairs" dir=forward]
+	nest0_0 -> nest0_1 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N1 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_133.txt b/test/diagrams/scanned_medium/diagrams_133.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c42a096334dcc486644b67c3221e16286efdaf6f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_133.txt
@@ -0,0 +1,17 @@
+<Climate Change Adaptation in Forests, connectedTo, Forestry Policy Development>
+<Erosion Control, repairs, Logging Operations>
+<Forest Certification, connectedTo, Forestry Policy Development>
+<Forest Certification, connectedTo, Silviculture>
+<Forest Land Use Planning, connectedTo, Forest Road Construction>
+<Forest Road Construction, connectedTo, Silviculture>
+<Forestry Education, develops, Soil Conservation>
+<Forestry Policy Development, connectedTo, Forestry Education>
+<GIS Mapping for Forestry, connectedTo, Forest Land Use Planning>
+<Illegal Logging Prevention, connectedTo, Forestry Policy Development>
+<Illegal Logging Prevention, connectedTo, Soil Conservation>
+<Illegal Logging Prevention, identifies, Climate Change Adaptation in Forests>
+<Silviculture, maintains, Tree Planting>
+<Soil Conservation, connectedTo, Erosion Control>
+<Tree Planting, connectedTo, Forestry Policy Development>
+<Tree Planting, connectedTo, GIS Mapping for Forestry>
+<Tree Planting, connectedTo, Illegal Logging Prevention>
diff --git a/test/diagrams/scanned_medium/diagrams_134.dot b/test/diagrams/scanned_medium/diagrams_134.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0b195cc1f6481c488495863161ef01a8ec85a3a2
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_134.dot
@@ -0,0 +1,52 @@
+digraph {
+	rankdir=LR
+	N0 [label="Public Access Management" color="#795548" fillcolor="#D7CCC8" shape=box style=filled]
+	N1 [label="Tree Nursery Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	N2 [label="Forest Carbon Accounting" color="#D3EB9F" fillcolor="#F8FDD3" shape=document style=filled]
+	N3 [label="Forest Health Monitoring" color="#D3EB9F" fillcolor="#F8FDD3" shape=hexagon style=filled]
+	N4 [label="Forest Research" color="#FFCC80" fillcolor="#FFF0CC" shape=action style=filled]
+	N5 [label="Biomass Production from Forests" color="#795548" fillcolor="#D7CCC8" shape=preparation style=filled]
+	N6 [label="Watershed Protection" color="#D3EB9F" fillcolor="#F8FDD3" shape=rectangle style=filled]
+	N7 [label="Ecological Restoration" color="#FFCC80" fillcolor="#FFF0CC" shape=vnode_shape style=filled]
+	N8 [label="Recreation Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	N9 [label="Erosion Control" color="#D3EB9F" fillcolor="#F8FDD3" shape=action style=filled]
+	N10 [label="Forest Inventory" color="#795548" fillcolor="#D7CCC8" shape=document style=filled]
+	N11 [label="Urban Forestry Management" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	N12 [label="Tree Planting" color="#FFCC80" fillcolor="#FFF0CC" shape=rect style=filled]
+	S0 [label="" color="#795548" fillcolor="#D7CCC8" 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="#D3EB9F" fillcolor="#F8FDD3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Non_Timber Forest Product Collection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Non_Timber Forest Product Collection"
+		nest0_0 [label="Logging Operations" color="#D3EB9F" fillcolor="#F8FDD3" shape=diamond style=filled]
+		nest0_1 [label="Carbon Sequestration Monitoring" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	}
+	N0 -> N1 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFCC80" penwidth=1.5 style=dashed label="predicts" dir=forward]
+	N3 -> N4 [color="#FFCC80" penwidth=1.5 style=dashed label="prevents" dir=forward]
+	N4 -> N5 [color="#795548" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#D3EB9F" penwidth=1.5 style=dashed label="surveys" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="manages" dir=forward]
+	N3 -> nest0_0 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N4 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N9 -> S0 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#D3EB9F" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N6 -> M0 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N10 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#FFCC80" penwidth=1.5 style=dashed label="processes" dir=forward]
+	N4 -> M1 [color="#795548" penwidth=1.5 style=dashed label="repairs" dir=forward]
+	M1 -> N12 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_134.txt b/test/diagrams/scanned_medium/diagrams_134.txt
new file mode 100644
index 0000000000000000000000000000000000000000..940a77db60c45868801f1b7cf352d6e3e3f64024
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_134.txt
@@ -0,0 +1,23 @@
+<Biomass Production from Forests, connectedTo, Watershed Protection>
+<Carbon Sequestration Monitoring, connectedTo, Forest Research>
+<Ecological Restoration, surveys, Recreation Management>
+<Erosion Control, analyzes, Tree Planting>
+<Erosion Control, connectedTo, Forest Inventory>
+<Erosion Control, connectedTo, Urban Forestry Management>
+<Forest Carbon Accounting, connectedTo, Forest Inventory>
+<Forest Carbon Accounting, connectedTo, Tree Planting>
+<Forest Carbon Accounting, predicts, Forest Health Monitoring>
+<Forest Health Monitoring, connectedTo, Logging Operations>
+<Forest Health Monitoring, prevents, Forest Research>
+<Forest Inventory, connectedTo, Urban Forestry Management>
+<Forest Research, repairs, Tree Planting>
+<Forest Research, reports, Biomass Production from Forests>
+<Logging Operations, manages, Carbon Sequestration Monitoring>
+<Public Access Management, connectedTo, Tree Nursery Management>
+<Recreation Management, connectedTo, Erosion Control>
+<Tree Nursery Management, connectedTo, Forest Carbon Accounting>
+<Tree Nursery Management, connectedTo, Forest Inventory>
+<Urban Forestry Management, connectedTo, Tree Planting>
+<Watershed Protection, connectedTo, Ecological Restoration>
+<Watershed Protection, connectedTo, Forest Inventory>
+<Watershed Protection, processes, Tree Planting>
diff --git a/test/diagrams/scanned_medium/diagrams_135.dot b/test/diagrams/scanned_medium/diagrams_135.dot
new file mode 100644
index 0000000000000000000000000000000000000000..49b85297e473797e966a706a04bf58d189311031
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_135.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=RL
+	N0 [label="Forestry Equipment Maintenance" color="#673AB7" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N1 [label="Agroforestry Systems" color="#82DAFF" fillcolor="#C8EDFF" shape=multipledocuments style=filled]
+	N2 [label="Forestry Education" color="#82DAFF" fillcolor="#C8EDFF" shape=hexagon style=filled]
+	N3 [label="Logging Operations" color="#673AB7" fillcolor="#D1C4E9" shape=database style=filled]
+	N4 [label="Afforestation" color="#82DAFF" fillcolor="#C8EDFF" shape=rect style=filled]
+	N5 [label="Forest Health Monitoring" color="#BCB88A" fillcolor="#F5F5DC" shape=multipledocuments style=filled]
+	N6 [label="Forest Road Construction" color="#BCB88A" fillcolor="#F5F5DC" shape=document style=filled]
+	N7 [label="Illegal Logging Prevention" color="#82DAFF" fillcolor="#C8EDFF" shape=multipledocuments style=filled]
+	N8 [label="Ecological Restoration" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" 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_Forest Land Use Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Forest Land Use Planning"
+		nest0_0 [label="Forest Inventory" color="#82DAFF" fillcolor="#C8EDFF" shape=ellipse style=filled]
+		nest0_1 [label="Carbon Sequestration Monitoring" color="#673AB7" fillcolor="#D1C4E9" shape=action style=filled]
+		nest0_2 [label="Wildlife Habitat Management" color="#82DAFF" fillcolor="#C8EDFF" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#82DAFF" penwidth=1.5 style=solid label="regulates" dir=forward]
+	N1 -> N2 [color="#673AB7" penwidth=1.5 style=dashed label="surveys" dir=forward]
+	N2 -> N3 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#BCB88A" penwidth=1.5 style=dashed label="constructs" dir=forward]
+	N4 -> N5 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#673AB7" penwidth=1.5 style=solid label="enforces" dir=forward]
+	N7 -> N8 [color="#673AB7" 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]
+	N7 -> nest0_0 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N5 [color="#673AB7" penwidth=1.5 style=solid label="grades" dir=forward]
+	N3 -> S0 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#82DAFF" penwidth=1.5 style=dashed label="audits" dir=forward]
+	M1 -> N8 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_135.txt b/test/diagrams/scanned_medium/diagrams_135.txt
new file mode 100644
index 0000000000000000000000000000000000000000..15ff90e201b75be34b3025c3f94ce6366879f5ea
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_135.txt
@@ -0,0 +1,17 @@
+<Afforestation, connectedTo, Forest Health Monitoring>
+<Agroforestry Systems, connectedTo, Ecological Restoration>
+<Agroforestry Systems, surveys, Forestry Education>
+<Carbon Sequestration Monitoring, connectedTo, Wildlife Habitat Management>
+<Forest Health Monitoring, audits, Ecological Restoration>
+<Forest Health Monitoring, connectedTo, Forest Road Construction>
+<Forest Inventory, connectedTo, Carbon Sequestration Monitoring>
+<Forest Road Construction, enforces, Illegal Logging Prevention>
+<Forestry Education, connectedTo, Logging Operations>
+<Forestry Equipment Maintenance, regulates, Agroforestry Systems>
+<Illegal Logging Prevention, connectedTo, Ecological Restoration>
+<Illegal Logging Prevention, connectedTo, Forest Inventory>
+<Logging Operations, connectedTo, Ecological Restoration>
+<Logging Operations, connectedTo, Forest Health Monitoring>
+<Logging Operations, connectedTo, Illegal Logging Prevention>
+<Logging Operations, constructs, Afforestation>
+<Wildlife Habitat Management, grades, Forest Health Monitoring>
diff --git a/test/diagrams/scanned_medium/diagrams_136.dot b/test/diagrams/scanned_medium/diagrams_136.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ebb3bc9b65cb1c3cdfecae86384338346dc6ae44
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_136.dot
@@ -0,0 +1,40 @@
+digraph {
+	rankdir=LR
+	N0 [label="Biosecurity Measures" color="#FF8A65" fillcolor="#FBE9E7" shape=multipledocuments style=filled]
+	N1 [label="Pet Check_up" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+	N2 [label="Veterinary Pathology" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N3 [label="Veterinary Technology Training" color="#FF8A65" fillcolor="#FBE9E7" shape=diamond style=filled]
+	N4 [label="Surgery" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N5 [label="Allergy Testing" color="#4DD0E1" fillcolor="#C9F0F0" shape=rect style=filled]
+	N6 [label="Spay or Neuter Procedure" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N7 [label="Parasite Control" color="#FF8A65" fillcolor="#FBE9E7" shape=inputoutput 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]
+	M0 [label="" color="#4DD0E1" fillcolor="#C9F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Post_operative Care {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Post_operative Care"
+		nest0_0 [label="Client Communication" color="#7E57C2" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+		nest0_1 [label="Pharmacy Management" color="#7E57C2" fillcolor="#D1C4E9" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#FF8A65" penwidth=1.5 style=dashed label="dispenses" dir=forward]
+	N1 -> N2 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FF8A65" penwidth=1.5 style=dashed label="vaccinates" dir=forward]
+	N5 -> N6 [color="#4DD0E1" penwidth=1.5 style=dashed label="inspects" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N7 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S1 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#FF8A65" penwidth=1.5 style=solid label="admits" dir=forward]
+	N4 -> M0 [color="#7E57C2" penwidth=1.5 style=dashed label="recommends" dir=forward]
+	N3 -> M0 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_136.txt b/test/diagrams/scanned_medium/diagrams_136.txt
new file mode 100644
index 0000000000000000000000000000000000000000..50ea1a7d8f4de325ccc59e62f1c36f5df9b5dafa
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_136.txt
@@ -0,0 +1,15 @@
+<Allergy Testing, inspects, Spay or Neuter Procedure>
+<Biosecurity Measures, dispenses, Pet Check_up>
+<Client Communication, connectedTo, Pharmacy Management>
+<Pet Check_up, admits, Parasite Control>
+<Pet Check_up, connectedTo, Client Communication>
+<Pet Check_up, connectedTo, Surgery>
+<Pet Check_up, connectedTo, Veterinary Pathology>
+<Pharmacy Management, connectedTo, Parasite Control>
+<Spay or Neuter Procedure, connectedTo, Parasite Control>
+<Surgery, recommends, Spay or Neuter Procedure>
+<Surgery, vaccinates, Allergy Testing>
+<Veterinary Pathology, connectedTo, Veterinary Technology Training>
+<Veterinary Technology Training, connectedTo, Allergy Testing>
+<Veterinary Technology Training, connectedTo, Spay or Neuter Procedure>
+<Veterinary Technology Training, connectedTo, Surgery>
diff --git a/test/diagrams/scanned_medium/diagrams_137.dot b/test/diagrams/scanned_medium/diagrams_137.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cdc6d7347472c6b4e01c76999127702692136b0e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_137.dot
@@ -0,0 +1,34 @@
+digraph {
+	rankdir=TB
+	N0 [label="Post_operative Care" color="#6FE1D5" fillcolor="#C9EFEC" shape=vnode_shape style=filled]
+	N1 [label="Pain Management" color="#C2B2F0" fillcolor="#EFE6FF" shape=multipledocuments style=filled]
+	N2 [label="Emergency Vet Services" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+	N3 [label="Veterinary Technology Training" color="#F06292" fillcolor="#FCE4EC" shape=database style=filled]
+	N4 [label="Sterilization Protocols" color="#6FE1D5" fillcolor="#C9EFEC" shape=action style=filled]
+	N5 [label="Parasite Control" color="#C2B2F0" fillcolor="#EFE6FF" shape=database style=filled]
+	N6 [label="Toxicology Testing" color="#F06292" fillcolor="#FCE4EC" shape=preparation style=filled]
+	S1 [label="" color="#6FE1D5" fillcolor="#C9EFEC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#6FE1D5" fillcolor="#C9EFEC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Dental Care {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Dental Care"
+		nest0_0 [label="Diagnosis" color="#6FE1D5" fillcolor="#C9EFEC" shape=vnode_shape style=filled]
+		nest0_1 [label="Reproductive Services" color="#F06292" fillcolor="#FCE4EC" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#F06292" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	N3 -> N4 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#F06292" penwidth=1.5 style=solid label="euthanizes" dir=forward]
+	nest0_0 -> nest0_1 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed label="rescues" dir=forward]
+	nest0_1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#F06292" penwidth=1.5 style=solid label="bills" dir=forward]
+	N2 -> M1 [color="#F06292" penwidth=1.5 style=solid label="examines" dir=forward]
+	N1 -> M1 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_137.txt b/test/diagrams/scanned_medium/diagrams_137.txt
new file mode 100644
index 0000000000000000000000000000000000000000..123461f74bb7ef163392184ef4246e0d1ca08e5d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_137.txt
@@ -0,0 +1,13 @@
+<Diagnosis, connectedTo, Reproductive Services>
+<Emergency Vet Services, communicates, Veterinary Technology Training>
+<Emergency Vet Services, examines, Toxicology Testing>
+<Pain Management, connectedTo, Emergency Vet Services>
+<Pain Management, connectedTo, Toxicology Testing>
+<Parasite Control, euthanizes, Toxicology Testing>
+<Post_operative Care, bills, Parasite Control>
+<Post_operative Care, connectedTo, Pain Management>
+<Post_operative Care, connectedTo, Toxicology Testing>
+<Reproductive Services, connectedTo, Emergency Vet Services>
+<Sterilization Protocols, connectedTo, Parasite Control>
+<Sterilization Protocols, rescues, Diagnosis>
+<Veterinary Technology Training, connectedTo, Sterilization Protocols>
diff --git a/test/diagrams/scanned_medium/diagrams_138.dot b/test/diagrams/scanned_medium/diagrams_138.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7c7ecf98b23a9a98c87724b1a0704ec501907f80
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_138.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=BT
+	N0 [label="Reproductive Services" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N1 [label="Public Health Vet Services" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+	N2 [label="Pain Management" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N3 [label="Pre_surgical Assessment" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N4 [label="Hospice Care for Animals" color="#A2D0FF" fillcolor="#E8F0FF" shape=inputoutput style=filled]
+	N5 [label="Equine Care" color="#5C6BC0" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	N6 [label="Medical Record Keeping" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+	N7 [label="Pharmacy Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=document style=filled]
+	N8 [label="Euthanasia Services" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+	N9 [label="Veterinary Pathology" color="#A2D0FF" fillcolor="#E8F0FF" shape=predefinedprocess style=filled]
+	N10 [label="Surgery" color="#A2D0FF" fillcolor="#E8F0FF" shape=vnode_shape style=filled]
+	N11 [label="Allergy Testing" color="#A2D0FF" fillcolor="#E8F0FF" shape=action style=filled]
+	N12 [label="Wildlife Rehabilitation" color="#FFF8A6" fillcolor="#FFFDE0" shape=preparation style=filled]
+	S0 [label="" color="#A2D0FF" fillcolor="#E8F0FF" 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="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Laboratory Testing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Laboratory Testing"
+		nest0_0 [label="Animal Welfare Assessment" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+		nest0_1 [label="Biosecurity Measures" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFF8A6" penwidth=1.5 style=dashed label="bills" dir=forward]
+	N7 -> N8 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed label="rehabilitates" dir=forward]
+	nest0_0 -> nest0_1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N7 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#5C6BC0" penwidth=1.5 style=solid label="rescues" dir=forward]
+	N9 -> M0 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#A2D0FF" penwidth=1.5 style=solid label="monitors" dir=forward]
+	M1 -> N8 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_138.txt b/test/diagrams/scanned_medium/diagrams_138.txt
new file mode 100644
index 0000000000000000000000000000000000000000..37bcd3459008831372b158ecdcf096135449218c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_138.txt
@@ -0,0 +1,21 @@
+<Allergy Testing, rehabilitates, Wildlife Rehabilitation>
+<Animal Welfare Assessment, connectedTo, Biosecurity Measures>
+<Biosecurity Measures, connectedTo, Pharmacy Management>
+<Equine Care, connectedTo, Medical Record Keeping>
+<Euthanasia Services, connectedTo, Veterinary Pathology>
+<Hospice Care for Animals, connectedTo, Equine Care>
+<Hospice Care for Animals, monitors, Euthanasia Services>
+<Medical Record Keeping, bills, Pharmacy Management>
+<Pain Management, connectedTo, Animal Welfare Assessment>
+<Pain Management, connectedTo, Euthanasia Services>
+<Pain Management, connectedTo, Pre_surgical Assessment>
+<Pain Management, rescues, Allergy Testing>
+<Pharmacy Management, connectedTo, Euthanasia Services>
+<Pre_surgical Assessment, connectedTo, Hospice Care for Animals>
+<Public Health Vet Services, connectedTo, Allergy Testing>
+<Public Health Vet Services, connectedTo, Euthanasia Services>
+<Public Health Vet Services, connectedTo, Pain Management>
+<Reproductive Services, connectedTo, Public Health Vet Services>
+<Surgery, connectedTo, Allergy Testing>
+<Veterinary Pathology, connectedTo, Allergy Testing>
+<Veterinary Pathology, connectedTo, Surgery>
diff --git a/test/diagrams/scanned_medium/diagrams_139.dot b/test/diagrams/scanned_medium/diagrams_139.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a84218f93c829fc28874153d3e03c564dd9cba9e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_139.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=LR
+	N0 [label="Special Needs Accommodation" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N1 [label="Outdoor Exploration" color="#6FE1D5" fillcolor="#C9EFEC" shape=rectangle style=filled]
+	N2 [label="First Aid Administration" color="#9C27B0" fillcolor="#E1BEE7" shape=diamond style=filled]
+	N3 [label="Emergency Evacuation Drills" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N4 [label="Motor Skill Development" color="#9C27B0" fillcolor="#E1BEE7" shape=document style=filled]
+	N5 [label="Story Time Reading" color="#6FE1D5" fillcolor="#C9EFEC" shape=diamond style=filled]
+	N6 [label="Social Skill Development" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	N7 [label="Parent Communication" color="#9C27B0" fillcolor="#E1BEE7" shape=ellipse style=filled]
+	N8 [label="Safety Supervision" color="#9C27B0" fillcolor="#E1BEE7" shape=preparation 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="#673AB7" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Emotional Support {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Emotional Support"
+		nest0_0 [label="Enrollment and Admissions" color="#9C27B0" fillcolor="#E1BEE7" shape=rect style=filled]
+		nest0_1 [label="Nutritional Meal Preparation" color="#9C27B0" fillcolor="#E1BEE7" shape=multipledocuments style=filled]
+		nest0_2 [label="Daily Activity Reporting" color="#9C27B0" fillcolor="#E1BEE7" shape=document style=filled]
+		nest0_3 [label="Childcare Facility Licensing" color="#673AB7" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#9C27B0" 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="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N8 [color="#6FE1D5" penwidth=1.5 style=dashed label="cleans" dir=forward]
+	N3 -> S0 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#9C27B0" penwidth=1.5 style=solid label="teaches" dir=forward]
+	N3 -> S1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#673AB7" penwidth=1.5 style=solid label="facilitates" dir=forward]
+	N6 -> M0 [color="#673AB7" penwidth=1.5 style=dashed label="plans" dir=forward]
+	N3 -> M0 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	M0 -> N8 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_139.txt b/test/diagrams/scanned_medium/diagrams_139.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3e11ed935fc948eb87f733a40915809f0af3efc5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_139.txt
@@ -0,0 +1,20 @@
+<Childcare Facility Licensing, cleans, Safety Supervision>
+<Daily Activity Reporting, connectedTo, Childcare Facility Licensing>
+<Emergency Evacuation Drills, connectedTo, Motor Skill Development>
+<Emergency Evacuation Drills, connectedTo, Parent Communication>
+<Emergency Evacuation Drills, connectedTo, Safety Supervision>
+<Emergency Evacuation Drills, connectedTo, Social Skill Development>
+<Emergency Evacuation Drills, facilitates, Story Time Reading>
+<Emergency Evacuation Drills, teaches, Parent Communication>
+<Enrollment and Admissions, connectedTo, Nutritional Meal Preparation>
+<First Aid Administration, connectedTo, Emergency Evacuation Drills>
+<Motor Skill Development, connectedTo, Story Time Reading>
+<Nutritional Meal Preparation, connectedTo, Daily Activity Reporting>
+<Outdoor Exploration, connectedTo, Enrollment and Admissions>
+<Outdoor Exploration, connectedTo, First Aid Administration>
+<Outdoor Exploration, connectedTo, Safety Supervision>
+<Parent Communication, connectedTo, Safety Supervision>
+<Social Skill Development, connectedTo, Parent Communication>
+<Social Skill Development, plans, Safety Supervision>
+<Special Needs Accommodation, connectedTo, Outdoor Exploration>
+<Story Time Reading, connectedTo, Social Skill Development>
diff --git a/test/diagrams/scanned_medium/diagrams_14.dot b/test/diagrams/scanned_medium/diagrams_14.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4326c71e2fa83829ddfd1835736b271dfb474264
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_14.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Public Warning" color="#8C9EFF" fillcolor="#D3D7EB" shape=parallelogram style=filled]
+	N1 [label="Evacuation Planning" color="#92C79A" fillcolor="#E8F0EA" shape=vnode_shape style=filled]
+	N2 [label="Shelter Setup" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+	N3 [label="Rescue Coordination" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	N4 [label="Responder Alert" color="#DCE775" fillcolor="#FCFCE7" shape=diamond style=filled]
+	N5 [label="Bomb Disposal" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	N6 [label="Border Security" color="#8C9EFF" fillcolor="#D3D7EB" shape=hexagon style=filled]
+	N7 [label="Resource Allocation" color="#8C9EFF" fillcolor="#D3D7EB" shape=rect style=filled]
+	N0 -> N1 [color="#92C79A" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	N1 -> N2 [color="#8C9EFF" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N2 -> N3 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#8C9EFF" penwidth=1.5 style=dashed label="drills" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N2 [color="#8C9EFF" penwidth=1.5 style=dashed label="controls" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_14.txt b/test/diagrams/scanned_medium/diagrams_14.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c86606848aaf5375d53385acb2a433757b15ccfa
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_14.txt
@@ -0,0 +1,8 @@
+<Bomb Disposal, connectedTo, Border Security>
+<Border Security, connectedTo, Resource Allocation>
+<Border Security, controls, Shelter Setup>
+<Evacuation Planning, analyzes, Shelter Setup>
+<Public Warning, communicates, Evacuation Planning>
+<Rescue Coordination, connectedTo, Responder Alert>
+<Responder Alert, drills, Bomb Disposal>
+<Shelter Setup, connectedTo, Rescue Coordination>
diff --git a/test/diagrams/scanned_medium/diagrams_140.dot b/test/diagrams/scanned_medium/diagrams_140.dot
new file mode 100644
index 0000000000000000000000000000000000000000..77b98b77cfa66820a64b4f20fbd316c1b9a440cc
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_140.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=RL
+	N0 [label="Special Needs Accommodation" color="#CFCFCF" fillcolor="#F6F6F6" shape=inputoutput style=filled]
+	N1 [label="Enrollment and Admissions" color="#00BCD4" fillcolor="#E0F7FA" shape=rectangle style=filled]
+	N2 [label="After_School Programs" color="#CFCFCF" fillcolor="#F6F6F6" shape=rectangle style=filled]
+	N3 [label="Group Activities Coordination" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+	N4 [label="Behavior Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=rectangle style=filled]
+	N5 [label="Daily Activity Reporting" color="#3F51B5" fillcolor="#C5CAE9" shape=predefinedprocess style=filled]
+	N6 [label="Teacher_Child Ratio Management" color="#3F51B5" fillcolor="#C5CAE9" shape=vnode_shape style=filled]
+	N7 [label="Toddler Activities" color="#3F51B5" fillcolor="#C5CAE9" shape=box style=filled]
+	N8 [label="Parent Communication" color="#CFCFCF" fillcolor="#F6F6F6" shape=multipledocuments style=filled]
+	N9 [label="Childcare Facility Licensing" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+	S0 [label="" color="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#CFCFCF" fillcolor="#F6F6F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#CFCFCF" fillcolor="#F6F6F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#00BCD4" fillcolor="#E0F7FA" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Learning Material Selection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Learning Material Selection"
+		nest0_0 [label="Sensory Play" color="#CFCFCF" fillcolor="#F6F6F6" shape=preparation style=filled]
+		nest0_1 [label="Creative Arts Activities" color="#3F51B5" fillcolor="#C5CAE9" shape=vnode_shape style=filled]
+		nest0_2 [label="Emotional Support" color="#CFCFCF" fillcolor="#F6F6F6" shape=box style=filled]
+	}
+	N0 -> N1 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#00BCD4" penwidth=1.5 style=solid label="manages" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="monitors" dir=forward]
+	N4 -> N5 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#3F51B5" penwidth=1.5 style=solid label="develops" dir=forward]
+	N6 -> N7 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#CFCFCF" penwidth=1.5 style=solid label="cares for" dir=forward]
+	nest0_0 -> nest0_1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N9 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S1 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#CFCFCF" penwidth=1.5 style=solid label="plans" dir=forward]
+	N1 -> M0 [color="#3F51B5" penwidth=1.5 style=solid label="complies" dir=forward]
+	N3 -> M0 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#3F51B5" penwidth=1.5 style=solid label="cleans" dir=forward]
+	N3 -> M1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	M1 -> N8 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_140.txt b/test/diagrams/scanned_medium/diagrams_140.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1856bdfb9c5f9f6ee2e4321b03ccd633504aad13
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_140.txt
@@ -0,0 +1,21 @@
+<After_School Programs, manages, Group Activities Coordination>
+<Behavior Management, connectedTo, Daily Activity Reporting>
+<Creative Arts Activities, connectedTo, Emotional Support>
+<Daily Activity Reporting, connectedTo, Childcare Facility Licensing>
+<Daily Activity Reporting, connectedTo, Toddler Activities>
+<Daily Activity Reporting, develops, Teacher_Child Ratio Management>
+<Emotional Support, connectedTo, Childcare Facility Licensing>
+<Enrollment and Admissions, complies, Teacher_Child Ratio Management>
+<Enrollment and Admissions, connectedTo, After_School Programs>
+<Enrollment and Admissions, connectedTo, Sensory Play>
+<Enrollment and Admissions, connectedTo, Teacher_Child Ratio Management>
+<Enrollment and Admissions, plans, Daily Activity Reporting>
+<Group Activities Coordination, connectedTo, Parent Communication>
+<Group Activities Coordination, connectedTo, Teacher_Child Ratio Management>
+<Group Activities Coordination, monitors, Behavior Management>
+<Parent Communication, cares for, Childcare Facility Licensing>
+<Sensory Play, connectedTo, Creative Arts Activities>
+<Special Needs Accommodation, cleans, Parent Communication>
+<Special Needs Accommodation, connectedTo, Enrollment and Admissions>
+<Teacher_Child Ratio Management, connectedTo, Toddler Activities>
+<Toddler Activities, connectedTo, Parent Communication>
diff --git a/test/diagrams/scanned_medium/diagrams_141.dot b/test/diagrams/scanned_medium/diagrams_141.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2706c46a9de8afdb3cb738177c4fe16b14544f02
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_141.dot
@@ -0,0 +1,51 @@
+digraph {
+	rankdir=LR
+	N0 [label="Toddler Activities" color="#7986CB" fillcolor="#E8EAF6" shape=database style=filled]
+	N1 [label="After_School Programs" color="#BA68C8" fillcolor="#F3E5F5" shape=database style=filled]
+	N2 [label="Enrollment and Admissions" color="#BA68C8" fillcolor="#F3E5F5" shape=rectangle style=filled]
+	N3 [label="Curriculum Planning" color="#CDDC39" fillcolor="#E6EE9C" shape=predefinedprocess style=filled]
+	N4 [label="Story Time Reading" color="#CDDC39" fillcolor="#E6EE9C" shape=vnode_shape style=filled]
+	N5 [label="Staff Training and Certification" color="#BA68C8" fillcolor="#F3E5F5" shape=inputoutput style=filled]
+	N6 [label="Teacher_Child Ratio Management" color="#BA68C8" fillcolor="#F3E5F5" shape=rectangle style=filled]
+	N7 [label="Child Protection Policies" color="#BA68C8" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N8 [label="Sensory Play" color="#BA68C8" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N9 [label="Special Needs Accommodation" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N10 [label="Social Skill Development" color="#CDDC39" fillcolor="#E6EE9C" shape=preparation style=filled]
+	N11 [label="Hygiene Practices" color="#7986CB" fillcolor="#E8EAF6" shape=rect style=filled]
+	N12 [label="Safety Supervision" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N13 [label="Parent Communication" color="#7986CB" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N14 [label="Nap Time Supervision" color="#CDDC39" fillcolor="#E6EE9C" shape=rect style=filled]
+	S0 [label="" color="#7986CB" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Field Trip Organization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Field Trip Organization"
+		nest0_0 [label="Outdoor Play Supervision" color="#7986CB" fillcolor="#E8EAF6" shape=predefinedprocess style=filled]
+		nest0_1 [label="Potty Training Assistance" color="#BA68C8" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+		nest0_2 [label="Early Literacy Programs" color="#7986CB" fillcolor="#E8EAF6" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#BA68C8" penwidth=1.5 style=dashed label="engages" dir=forward]
+	N7 -> N8 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#CDDC39" 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="#CDDC39" penwidth=1.5 style=dashed label="creates" dir=forward]
+	N12 -> N13 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#7986CB" 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]
+	N7 -> nest0_0 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N13 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N4 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N9 -> N12 [color="#7986CB" penwidth=1.5 style=dashed label="advises" dir=forward]
+	N10 -> N9 [color="#CDDC39" penwidth=1.5 style=solid label="organizes" dir=forward]
+	N2 -> N0 [color="#BA68C8" penwidth=1.5 style=solid label="plays with" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_141.txt b/test/diagrams/scanned_medium/diagrams_141.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1ed87bb9594b3a0b9ae15515c2bf53b792761d65
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_141.txt
@@ -0,0 +1,23 @@
+<After_School Programs, connectedTo, Enrollment and Admissions>
+<Child Protection Policies, connectedTo, Outdoor Play Supervision>
+<Child Protection Policies, connectedTo, Sensory Play>
+<Curriculum Planning, connectedTo, Story Time Reading>
+<Early Literacy Programs, connectedTo, Parent Communication>
+<Enrollment and Admissions, connectedTo, Curriculum Planning>
+<Enrollment and Admissions, plays with, Toddler Activities>
+<Hygiene Practices, creates, Safety Supervision>
+<Outdoor Play Supervision, connectedTo, Potty Training Assistance>
+<Parent Communication, connectedTo, Nap Time Supervision>
+<Potty Training Assistance, connectedTo, Early Literacy Programs>
+<Safety Supervision, connectedTo, Parent Communication>
+<Sensory Play, connectedTo, Special Needs Accommodation>
+<Social Skill Development, connectedTo, Hygiene Practices>
+<Social Skill Development, organizes, Special Needs Accommodation>
+<Special Needs Accommodation, advises, Safety Supervision>
+<Special Needs Accommodation, connectedTo, Social Skill Development>
+<Staff Training and Certification, connectedTo, Teacher_Child Ratio Management>
+<Story Time Reading, connectedTo, Parent Communication>
+<Story Time Reading, connectedTo, Special Needs Accommodation>
+<Story Time Reading, connectedTo, Staff Training and Certification>
+<Teacher_Child Ratio Management, engages, Child Protection Policies>
+<Toddler Activities, connectedTo, After_School Programs>
diff --git a/test/diagrams/scanned_medium/diagrams_142.dot b/test/diagrams/scanned_medium/diagrams_142.dot
new file mode 100644
index 0000000000000000000000000000000000000000..93dd1af92073bf9684602d174cde992900e3bacc
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_142.dot
@@ -0,0 +1,35 @@
+digraph {
+	rankdir=RL
+	N0 [label="Long_Term Care Planning" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N1 [label="Legal Aid Referrals" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	N2 [label="Health Monitoring" color="#E57373" fillcolor="#FFEBEE" shape=hexagon style=filled]
+	N3 [label="Incontinence Care" color="#A188DB" fillcolor="#DED7F0" shape=database style=filled]
+	N4 [label="Care Plan Development" color="#E57373" fillcolor="#FFEBEE" shape=action style=filled]
+	N5 [label="Emotional Support and Counseling" color="#00BCD4" fillcolor="#B2EBF2" shape=hexagon style=filled]
+	N6 [label="Respite Care" color="#A188DB" fillcolor="#DED7F0" shape=inputoutput style=filled]
+	N7 [label="Smart Home Integration for Seniors" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+	subgraph cluster_Financial Management Assistance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Financial Management Assistance"
+		nest0_0 [label="Cognitive Stimulation Activities" color="#A188DB" fillcolor="#DED7F0" shape=rectangle style=filled]
+		nest0_1 [label="Dementia Care" color="#A188DB" fillcolor="#DED7F0" shape=predefinedprocess style=filled]
+		nest0_2 [label="Fall Prevention" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="supervises" dir=forward]
+	N2 -> N3 [color="#A188DB" penwidth=1.5 style=solid label="responds" dir=forward]
+	N3 -> N4 [color="#E57373" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N4 -> N5 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#00BCD4" penwidth=1.5 style=dashed label="assists" dir=forward]
+	N6 -> N7 [color="#E57373" 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="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N2 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> N2 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N3 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N6 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N3 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N6 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_142.txt b/test/diagrams/scanned_medium/diagrams_142.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a5e45c3d521b91427ac793ad54fda57ea44e434f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_142.txt
@@ -0,0 +1,16 @@
+<Care Plan Development, connectedTo, Emotional Support and Counseling>
+<Cognitive Stimulation Activities, connectedTo, Dementia Care>
+<Cognitive Stimulation Activities, connectedTo, Health Monitoring>
+<Dementia Care, connectedTo, Fall Prevention>
+<Dementia Care, connectedTo, Respite Care>
+<Emotional Support and Counseling, assists, Respite Care>
+<Emotional Support and Counseling, connectedTo, Cognitive Stimulation Activities>
+<Fall Prevention, connectedTo, Health Monitoring>
+<Fall Prevention, connectedTo, Incontinence Care>
+<Fall Prevention, connectedTo, Respite Care>
+<Health Monitoring, responds, Incontinence Care>
+<Incontinence Care, connectedTo, Emotional Support and Counseling>
+<Incontinence Care, optimizes, Care Plan Development>
+<Legal Aid Referrals, supervises, Health Monitoring>
+<Long_Term Care Planning, connectedTo, Legal Aid Referrals>
+<Respite Care, connectedTo, Smart Home Integration for Seniors>
diff --git a/test/diagrams/scanned_medium/diagrams_143.dot b/test/diagrams/scanned_medium/diagrams_143.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3e7954c8d1da36c9adadb29c0ce3256deb9ec1ee
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_143.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=TB
+	N0 [label="Emotional Support and Counseling" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N1 [label="Recreational Activities Planning" color="#CD8FF2" fillcolor="#ECCFF5" shape=predefinedprocess style=filled]
+	N2 [label="Telehealth for Seniors" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N3 [label="Physical Therapy" color="#FFE69C" fillcolor="#FFF9D4" shape=rect style=filled]
+	N4 [label="Health Monitoring" color="#FFE69C" fillcolor="#FFF9D4" shape=action style=filled]
+	N5 [label="Pain Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N6 [label="Daily Living Assistance" color="#CD8FF2" fillcolor="#ECCFF5" shape=parallelogram style=filled]
+	N7 [label="Memory Care" color="#FFD54F" fillcolor="#FFF8E1" shape=inputoutput style=filled]
+	N8 [label="Medication Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=document style=filled]
+	N9 [label="Fall Prevention" color="#FFD54F" fillcolor="#FFF8E1" shape=preparation style=filled]
+	S0 [label="" color="#CD8FF2" fillcolor="#ECCFF5" 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]
+	M1 [label="" color="#CD8FF2" fillcolor="#ECCFF5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Legal Aid Referrals {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Legal Aid Referrals"
+		nest0_0 [label="Nutritional Assessment" color="#CD8FF2" fillcolor="#ECCFF5" shape=diamond style=filled]
+		nest0_1 [label="Community Resource Connection" color="#CD8FF2" fillcolor="#ECCFF5" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="guides" dir=forward]
+	N8 -> nest0_0 [color="#FFE69C" penwidth=1.5 style=solid label="educates" dir=forward]
+	nest0_1 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FFE69C" penwidth=1.5 style=dashed label="plans" dir=forward]
+	S0 -> N8 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N5 -> S1 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#CD8FF2" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	N0 -> M1 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_143.txt b/test/diagrams/scanned_medium/diagrams_143.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b52f2d74a76c623b6ea086927351a523b8a94d6b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_143.txt
@@ -0,0 +1,18 @@
+<Community Resource Connection, connectedTo, Memory Care>
+<Daily Living Assistance, connectedTo, Memory Care>
+<Emotional Support and Counseling, connectedTo, Medication Management>
+<Emotional Support and Counseling, connectedTo, Pain Management>
+<Emotional Support and Counseling, connectedTo, Recreational Activities Planning>
+<Emotional Support and Counseling, plans, Memory Care>
+<Health Monitoring, connectedTo, Pain Management>
+<Medication Management, connectedTo, Fall Prevention>
+<Medication Management, educates, Nutritional Assessment>
+<Memory Care, connectedTo, Medication Management>
+<Nutritional Assessment, guides, Community Resource Connection>
+<Pain Management, communicates, Medication Management>
+<Pain Management, connectedTo, Daily Living Assistance>
+<Pain Management, connectedTo, Fall Prevention>
+<Physical Therapy, connectedTo, Health Monitoring>
+<Recreational Activities Planning, connectedTo, Pain Management>
+<Recreational Activities Planning, connectedTo, Telehealth for Seniors>
+<Telehealth for Seniors, connectedTo, Physical Therapy>
diff --git a/test/diagrams/scanned_medium/diagrams_144.dot b/test/diagrams/scanned_medium/diagrams_144.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3d0535274eacde8e6fecf081ba78f52539afb1f2
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_144.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=BT
+	N0 [label="Dementia Care" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N1 [label="Telehealth for Seniors" color="#7E57C2" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N2 [label="Mobility Support" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N3 [label="Transportation Assistance" color="#FFCC80" fillcolor="#FFF0CC" shape=hexagon style=filled]
+	N4 [label="Nursing Care" color="#7E57C2" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+	N5 [label="Personal Care Assistance" color="#FFC107" fillcolor="#FFECB3" shape=rectangle style=filled]
+	N6 [label="Long_Term Care Planning" color="#7E57C2" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N7 [label="Care Plan Development" color="#7E57C2" fillcolor="#D1C4E9" shape=database style=filled]
+	N8 [label="Chronic Disease Management" color="#7E57C2" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N9 [label="Community Resource Connection" color="#FFCC80" fillcolor="#FFF0CC" shape=diamond style=filled]
+	N10 [label="Occupational Therapy" color="#FFC107" fillcolor="#FFECB3" shape=preparation style=filled]
+	S0 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFCC80" fillcolor="#FFF0CC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Incontinence Care {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Incontinence Care"
+		nest0_0 [label="Palliative Care" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+		nest0_1 [label="Physical Therapy" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+		nest0_2 [label="Smart Home Integration for Seniors" color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="escorts" dir=forward]
+	N1 -> N2 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N3 -> N4 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFC107" penwidth=1.5 style=dashed label="transports" dir=forward]
+	N5 -> N6 [color="#FFC107" penwidth=1.5 style=dashed label="comforts" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFCC80" 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="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#000000" penwidth=1.5 style=solid label="documents" dir=forward]
+	nest0_2 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=dashed label="coordinates" dir=forward]
+	N0 -> M0 [color="#FFCC80" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	M0 -> N3 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_144.txt b/test/diagrams/scanned_medium/diagrams_144.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f123fca582a57f8bd621bf21b12a470733fae2a6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_144.txt
@@ -0,0 +1,20 @@
+<Care Plan Development, connectedTo, Chronic Disease Management>
+<Chronic Disease Management, connectedTo, Community Resource Connection>
+<Community Resource Connection, connectedTo, Occupational Therapy>
+<Dementia Care, connectedTo, Transportation Assistance>
+<Dementia Care, escorts, Telehealth for Seniors>
+<Long_Term Care Planning, connectedTo, Care Plan Development>
+<Mobility Support, reports, Transportation Assistance>
+<Nursing Care, transports, Personal Care Assistance>
+<Palliative Care, connectedTo, Physical Therapy>
+<Personal Care Assistance, comforts, Long_Term Care Planning>
+<Personal Care Assistance, documents, Palliative Care>
+<Physical Therapy, connectedTo, Smart Home Integration for Seniors>
+<Smart Home Integration for Seniors, connectedTo, Chronic Disease Management>
+<Telehealth for Seniors, connectedTo, Mobility Support>
+<Telehealth for Seniors, connectedTo, Personal Care Assistance>
+<Telehealth for Seniors, connectedTo, Transportation Assistance>
+<Telehealth for Seniors, coordinates, Chronic Disease Management>
+<Transportation Assistance, connectedTo, Care Plan Development>
+<Transportation Assistance, connectedTo, Chronic Disease Management>
+<Transportation Assistance, connectedTo, Nursing Care>
diff --git a/test/diagrams/scanned_medium/diagrams_145.dot b/test/diagrams/scanned_medium/diagrams_145.dot
new file mode 100644
index 0000000000000000000000000000000000000000..08e4533c3bd3fa2befb36ee116ae3835039e9e1b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_145.dot
@@ -0,0 +1,39 @@
+digraph {
+	rankdir=LR
+	N0 [label="Search and Rescue Operations" color="#66BB6A" fillcolor="#E8F5E9" shape=parallelogram style=filled]
+	N1 [label="Emergency Drills and Exercises" color="#6FE1D5" fillcolor="#C9EFEC" shape=hexagon style=filled]
+	N2 [label="Reconstruction" color="#66BB6A" fillcolor="#E8F5E9" shape=predefinedprocess style=filled]
+	N3 [label="Psychosocial Support" color="#BDAFA8" fillcolor="#E4E0DF" shape=rect style=filled]
+	N4 [label="Drone Deployment for Assessment" color="#BDAFA8" fillcolor="#E4E0DF" shape=diamond style=filled]
+	N5 [label="Emergency Response" color="#BDAFA8" fillcolor="#E4E0DF" shape=document style=filled]
+	N6 [label="Resource Mobilization" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+	N7 [label="Shelter Management" color="#BDAFA8" fillcolor="#E4E0DF" shape=inputoutput style=filled]
+	S0 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Infrastructure Repair {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Infrastructure Repair"
+		nest0_0 [label="Geographic Information Systems for Disasters" color="#6FE1D5" fillcolor="#C9EFEC" shape=hexagon style=filled]
+		nest0_1 [label="Vulnerability Analysis" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+		nest0_2 [label="Public Awareness Campaigns" color="#66BB6A" fillcolor="#E8F5E9" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#BDAFA8" penwidth=1.5 style=dashed label="prevents" dir=forward]
+	N5 -> nest0_0 [color="#BDAFA8" penwidth=1.5 style=solid label="plans" dir=forward]
+	nest0_2 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=solid label="evacuates" dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=solid label="responds" dir=forward]
+	N2 -> M1 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N7 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_146.dot b/test/diagrams/scanned_medium/diagrams_146.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1de655c91e5b8590435594e5570612a0d2fb493d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_146.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=TB
+	N0 [label="Emergency Planning" color="#B0C5CD" fillcolor="#DFE7EB" shape=inputoutput style=filled]
+	N1 [label="Geographic Information Systems for Disasters" color="#B0C5CD" fillcolor="#DFE7EB" shape=hexagon style=filled]
+	N2 [label="Evacuation Procedures" color="#42A5F5" fillcolor="#F1F8FF" shape=hexagon style=filled]
+	N3 [label="Logistics and Supply Chain" color="#92C79A" fillcolor="#E8F0EA" shape=database style=filled]
+	N4 [label="Communication Protocols" color="#92C79A" fillcolor="#E8F0EA" shape=diamond style=filled]
+	N5 [label="International Aid Coordination" color="#42A5F5" fillcolor="#F1F8FF" shape=hexagon style=filled]
+	N6 [label="Capacity Building for Local Communities" color="#B0C5CD" fillcolor="#DFE7EB" shape=diamond style=filled]
+	N7 [label="Vulnerability Analysis" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	N8 [label="Early Warning Systems" color="#42A5F5" fillcolor="#F1F8FF" shape=vnode_shape style=filled]
+	N9 [label="Incident Command System" color="#92C79A" fillcolor="#E8F0EA" shape=inputoutput style=filled]
+	N10 [label="Emergency Response" color="#42A5F5" fillcolor="#F1F8FF" shape=multipledocuments style=filled]
+	S0 [label="" color="#92C79A" fillcolor="#E8F0EA" 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="#92C79A" fillcolor="#E8F0EA" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Debris Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Debris Management"
+		nest0_0 [label="Early Recovery Actions" color="#92C79A" fillcolor="#E8F0EA" shape=action style=filled]
+		nest0_1 [label="Shelter Management" color="#B0C5CD" fillcolor="#DFE7EB" shape=diamond style=filled]
+		nest0_2 [label="Search and Rescue Operations" color="#42A5F5" fillcolor="#F1F8FF" shape=inputoutput style=filled]
+		nest0_3 [label="Infrastructure Repair" color="#42A5F5" fillcolor="#F1F8FF" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#42A5F5" penwidth=1.5 style=dashed label="evaluates" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#42A5F5" penwidth=1.5 style=dashed label="shelters" dir=forward]
+	N3 -> N4 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#92C79A" penwidth=1.5 style=solid label="coordinates" dir=forward]
+	N6 -> N7 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#42A5F5" 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="#92C79A" penwidth=1.5 style=solid label="mitigates" dir=forward]
+	nest0_2 -> nest0_3 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#42A5F5" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	S0 -> N6 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#B0C5CD" penwidth=1.5 style=solid label="drills" dir=forward]
+	N1 -> M0 [color="#92C79A" penwidth=1.5 style=dashed label="responds" dir=forward]
+	N0 -> M0 [color="#42A5F5" 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_medium/diagrams_146.txt b/test/diagrams/scanned_medium/diagrams_146.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6ad775ca792a5ae4640e3ea8b9edf1c727bae3a9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_146.txt
@@ -0,0 +1,21 @@
+<Capacity Building for Local Communities, connectedTo, Vulnerability Analysis>
+<Communication Protocols, connectedTo, International Aid Coordination>
+<Early Recovery Actions, connectedTo, Shelter Management>
+<Early Warning Systems, connectedTo, Incident Command System>
+<Emergency Planning, connectedTo, Logistics and Supply Chain>
+<Emergency Planning, evaluates, Geographic Information Systems for Disasters>
+<Evacuation Procedures, analyzes, Communication Protocols>
+<Evacuation Procedures, connectedTo, Capacity Building for Local Communities>
+<Evacuation Procedures, connectedTo, Vulnerability Analysis>
+<Evacuation Procedures, drills, Communication Protocols>
+<Evacuation Procedures, shelters, Logistics and Supply Chain>
+<Geographic Information Systems for Disasters, connectedTo, Evacuation Procedures>
+<Geographic Information Systems for Disasters, responds, Logistics and Supply Chain>
+<Incident Command System, connectedTo, Emergency Response>
+<Infrastructure Repair, connectedTo, Communication Protocols>
+<International Aid Coordination, connectedTo, Early Recovery Actions>
+<International Aid Coordination, coordinates, Capacity Building for Local Communities>
+<Logistics and Supply Chain, connectedTo, Communication Protocols>
+<Search and Rescue Operations, connectedTo, Infrastructure Repair>
+<Shelter Management, mitigates, Search and Rescue Operations>
+<Vulnerability Analysis, connectedTo, Early Warning Systems>
diff --git a/test/diagrams/scanned_medium/diagrams_147.dot b/test/diagrams/scanned_medium/diagrams_147.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fd9afca1e4e4bc7e54432595c0ae2d17c064b084
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_147.dot
@@ -0,0 +1,40 @@
+digraph {
+	rankdir=TB
+	N0 [label="Capacity Building for Local Communities" color="#9575CD" fillcolor="#EDE7F6" shape=multipledocuments style=filled]
+	N1 [label="Emergency Planning" color="#BDBDBD" fillcolor="#F5F5F5" shape=preparation style=filled]
+	N2 [label="Drone Deployment for Assessment" color="#BDBDBD" fillcolor="#F5F5F5" shape=diamond style=filled]
+	N3 [label="Resilience Building" color="#BDBDBD" fillcolor="#F5F5F5" shape=predefinedprocess style=filled]
+	N4 [label="Emergency Drills and Exercises" color="#9575CD" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	N5 [label="Hazard Identification" color="#BDBDBD" fillcolor="#F5F5F5" shape=predefinedprocess style=filled]
+	N6 [label="Mitigation Strategies" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+	S0 [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="#BDBDBD" fillcolor="#F5F5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Infrastructure Repair {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Infrastructure Repair"
+		nest0_0 [label="Emergency Response" color="#673AB7" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+		nest0_1 [label="Volunteer Coordination" color="#9575CD" fillcolor="#EDE7F6" shape=diamond style=filled]
+		nest0_2 [label="Risk Assessment" color="#9575CD" fillcolor="#EDE7F6" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#673AB7" penwidth=1.5 style=dashed label="evacuates" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="coordinates" dir=forward]
+	N3 -> N4 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#673AB7" penwidth=1.5 style=dashed label="donates" dir=forward]
+	nest0_0 -> nest0_1 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#673AB7" penwidth=1.5 style=dashed label="assesses" dir=forward]
+	N1 -> nest0_0 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N1 [color="#9575CD" penwidth=1.5 style=solid label="reconstructs" dir=forward]
+	N2 -> S0 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#9575CD" penwidth=1.5 style=dashed label="locates" dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed label="treats" dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_147.txt b/test/diagrams/scanned_medium/diagrams_147.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7b62dff4e63bfd535b680f65aa8c62f51edbc2d9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_147.txt
@@ -0,0 +1,16 @@
+<Capacity Building for Local Communities, connectedTo, Resilience Building>
+<Capacity Building for Local Communities, evacuates, Emergency Planning>
+<Drone Deployment for Assessment, connectedTo, Hazard Identification>
+<Drone Deployment for Assessment, coordinates, Resilience Building>
+<Drone Deployment for Assessment, locates, Mitigation Strategies>
+<Emergency Drills and Exercises, connectedTo, Hazard Identification>
+<Emergency Planning, connectedTo, Drone Deployment for Assessment>
+<Emergency Planning, connectedTo, Emergency Response>
+<Emergency Planning, connectedTo, Resilience Building>
+<Emergency Planning, treats, Hazard Identification>
+<Emergency Response, connectedTo, Volunteer Coordination>
+<Hazard Identification, donates, Mitigation Strategies>
+<Resilience Building, connectedTo, Emergency Drills and Exercises>
+<Resilience Building, connectedTo, Hazard Identification>
+<Risk Assessment, reconstructs, Emergency Planning>
+<Volunteer Coordination, assesses, Risk Assessment>
diff --git a/test/diagrams/scanned_medium/diagrams_148.dot b/test/diagrams/scanned_medium/diagrams_148.dot
new file mode 100644
index 0000000000000000000000000000000000000000..420201e71c8fa1dad5757cac68157d9467768856
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_148.dot
@@ -0,0 +1,57 @@
+digraph {
+	rankdir=TB
+	N0 [label="Operations Planning" color="#61CAC3" fillcolor="#C2E8E6" shape=rectangle style=filled]
+	N1 [label="Family Support Programs" color="#61CAC3" fillcolor="#C2E8E6" shape=predefinedprocess style=filled]
+	N2 [label="Rules of Engagement" color="#94C0C0" fillcolor="#CADEDE" shape=rectangle style=filled]
+	N3 [label="Specialized Training" color="#FF9800" fillcolor="#FFE0B2" shape=inputoutput style=filled]
+	N4 [label="Intelligence Gathering" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+	N5 [label="Logistics Support" color="#61CAC3" fillcolor="#C2E8E6" shape=diamond style=filled]
+	N6 [label="Military Strategy Development" color="#61CAC3" fillcolor="#C2E8E6" shape=predefinedprocess style=filled]
+	N7 [label="Civil_Military Cooperation" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N8 [label="Personnel Management" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+	N9 [label="Defense Procurement" color="#61CAC3" fillcolor="#C2E8E6" shape=preparation style=filled]
+	N10 [label="Air Operations" color="#94C0C0" fillcolor="#CADEDE" shape=action style=filled]
+	S0 [label="" color="#FF9800" fillcolor="#FFE0B2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#61CAC3" fillcolor="#C2E8E6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FF9800" fillcolor="#FFE0B2" 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_Crisis Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Crisis Management"
+		nest0_0 [label="Counter_Insurgency Operations" color="#FF9800" fillcolor="#FFE0B2" shape=box style=filled]
+		nest0_1 [label="Troop Deployment" color="#94C0C0" fillcolor="#CADEDE" shape=inputoutput style=filled]
+		nest0_2 [label="Unmanned Systems Operation" color="#FF9800" fillcolor="#FFE0B2" shape=inputoutput style=filled]
+		nest0_3 [label="Medical Support" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FF9800" penwidth=1.5 style=solid label="trains" dir=forward]
+	N5 -> N6 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#61CAC3" penwidth=1.5 style=dashed label="protects" dir=forward]
+	N7 -> N8 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#94C0C0" penwidth=1.5 style=solid label="mediates" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed label="evaluates" dir=forward]
+	nest0_2 -> nest0_3 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest0_0 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N6 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S1 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=solid label="warns" dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N6 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N8 -> M1 [color="#94C0C0" penwidth=1.5 style=dashed label="negotiates" dir=forward]
+	N4 -> M1 [color="#94C0C0" penwidth=1.5 style=dashed label="detains" dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N10 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_148.txt b/test/diagrams/scanned_medium/diagrams_148.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d06f78caea1b79289bf8b6b35ef00777dc948fda
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_148.txt
@@ -0,0 +1,26 @@
+<Civil_Military Cooperation, connectedTo, Personnel Management>
+<Counter_Insurgency Operations, mediates, Troop Deployment>
+<Defense Procurement, connectedTo, Air Operations>
+<Family Support Programs, connectedTo, Air Operations>
+<Family Support Programs, connectedTo, Counter_Insurgency Operations>
+<Family Support Programs, connectedTo, Intelligence Gathering>
+<Family Support Programs, connectedTo, Rules of Engagement>
+<Family Support Programs, connectedTo, Specialized Training>
+<Intelligence Gathering, connectedTo, Civil_Military Cooperation>
+<Intelligence Gathering, connectedTo, Defense Procurement>
+<Intelligence Gathering, detains, Air Operations>
+<Intelligence Gathering, trains, Logistics Support>
+<Intelligence Gathering, warns, Air Operations>
+<Logistics Support, connectedTo, Military Strategy Development>
+<Medical Support, connectedTo, Military Strategy Development>
+<Military Strategy Development, protects, Civil_Military Cooperation>
+<Operations Planning, connectedTo, Family Support Programs>
+<Operations Planning, connectedTo, Military Strategy Development>
+<Personnel Management, connectedTo, Defense Procurement>
+<Personnel Management, negotiates, Air Operations>
+<Rules of Engagement, connectedTo, Air Operations>
+<Rules of Engagement, connectedTo, Military Strategy Development>
+<Rules of Engagement, connectedTo, Specialized Training>
+<Specialized Training, connectedTo, Intelligence Gathering>
+<Troop Deployment, evaluates, Unmanned Systems Operation>
+<Unmanned Systems Operation, connectedTo, Medical Support>
diff --git a/test/diagrams/scanned_medium/diagrams_149.dot b/test/diagrams/scanned_medium/diagrams_149.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5a2b89f43d171506b31de2eebb03ea901a333d54
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_149.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=TB
+	N0 [label="Operations Planning" color="#FFF8A6" fillcolor="#FFFDE0" shape=document style=filled]
+	N1 [label="Veteran Support" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N2 [label="Disaster Relief Deployment" color="#AABEC6" fillcolor="#E0E6E9" shape=action style=filled]
+	N3 [label="Military Law" color="#AABEC6" fillcolor="#E0E6E9" shape=hexagon style=filled]
+	N4 [label="Chaplain Services" color="#F44336" fillcolor="#FFCDD2" shape=inputoutput style=filled]
+	N5 [label="Readiness Assessment" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N6 [label="Crisis Management" color="#FFF8A6" fillcolor="#FFFDE0" shape=rectangle style=filled]
+	N7 [label="Electronic Warfare" color="#F44336" fillcolor="#FFCDD2" shape=vnode_shape style=filled]
+	N8 [label="Military Strategy Development" color="#FFF8A6" fillcolor="#FFFDE0" shape=multipledocuments style=filled]
+	N9 [label="Combat Operations" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+	N10 [label="Targeting" color="#FFF8A6" fillcolor="#FFFDE0" shape=predefinedprocess style=filled]
+	S0 [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_Logistics Support {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Logistics Support"
+		nest0_0 [label="Force Projection" color="#FFF8A6" fillcolor="#FFFDE0" shape=database style=filled]
+		nest0_1 [label="Cyber Warfare Operations" color="#FFF8A6" fillcolor="#FFFDE0" shape=parallelogram style=filled]
+		nest0_2 [label="Naval Operations" color="#F44336" fillcolor="#FFCDD2" shape=hexagon style=filled]
+		nest0_3 [label="Troop Deployment" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#FFF8A6" penwidth=1.5 style=solid label="deploys" dir=forward]
+	N1 -> N2 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#F44336" 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=dashed dir=forward]
+	N6 -> N7 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="equips" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#AABEC6" penwidth=1.5 style=solid label="executes" dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid label="recruits" dir=forward]
+	N7 -> nest0_0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#F44336" penwidth=1.5 style=solid label="plans" dir=forward]
+	S0 -> N10 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_149.txt b/test/diagrams/scanned_medium/diagrams_149.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f8742a2f634e6516a35139c356fa011a4396a13d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_149.txt
@@ -0,0 +1,19 @@
+<Chaplain Services, connectedTo, Readiness Assessment>
+<Combat Operations, connectedTo, Targeting>
+<Crisis Management, connectedTo, Electronic Warfare>
+<Cyber Warfare Operations, executes, Naval Operations>
+<Disaster Relief Deployment, connectedTo, Military Law>
+<Electronic Warfare, connectedTo, Force Projection>
+<Electronic Warfare, equips, Military Strategy Development>
+<Force Projection, connectedTo, Cyber Warfare Operations>
+<Military Law, connectedTo, Chaplain Services>
+<Military Strategy Development, connectedTo, Combat Operations>
+<Naval Operations, recruits, Troop Deployment>
+<Operations Planning, connectedTo, Military Law>
+<Operations Planning, deploys, Veteran Support>
+<Readiness Assessment, connectedTo, Crisis Management>
+<Readiness Assessment, connectedTo, Targeting>
+<Readiness Assessment, plans, Military Strategy Development>
+<Troop Deployment, connectedTo, Electronic Warfare>
+<Veteran Support, connectedTo, Disaster Relief Deployment>
+<Veteran Support, connectedTo, Military Law>
diff --git a/test/diagrams/scanned_medium/diagrams_15.dot b/test/diagrams/scanned_medium/diagrams_15.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a4c3592893836aa0600c23cd2c44a0e9511b1fd3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_15.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=TB
+	N0 [label="Broadcast Scheduling" color="#C0CA33" fillcolor="#F9FBE7" shape=document style=filled]
+	N1 [label="Actor Rehearsal" color="#BDAFA8" fillcolor="#E4E0DF" shape=ellipse style=filled]
+	N2 [label="Licensing Approval" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+	N3 [label="Merchandise Creation" color="#C0CA33" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N4 [label="Concert Promotion" color="#FFC107" fillcolor="#FFECB3" shape=predefinedprocess style=filled]
+	N5 [label="Game Development" color="#BDAFA8" fillcolor="#E4E0DF" shape=box style=filled]
+	N6 [label="Premiere Event" color="#FFC107" fillcolor="#FFECB3" shape=action style=filled]
+	N7 [label="Animation Production" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N8 [label="Stunt Coordination" color="#C0CA33" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N9 [label="Live Performance" color="#FFC107" fillcolor="#FFECB3" shape=action style=filled]
+	N10 [label="Sound Engineering" color="#C0CA33" fillcolor="#F9FBE7" shape=database style=filled]
+	N11 [label="Post_Production Audio Mixing" color="#BDAFA8" fillcolor="#E4E0DF" shape=preparation style=filled]
+	N0 -> N1 [color="#FFC107" 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=dashed label="edits" dir=forward]
+	N3 -> N4 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="mixes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="audits" dir=forward]
+	N7 -> N8 [color="#C0CA33" penwidth=1.5 style=dashed label="manages" dir=forward]
+	N8 -> N9 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFC107" penwidth=1.5 style=dashed label="writes" dir=forward]
+	N10 -> N11 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N10 -> N2 [color="#FFC107" penwidth=1.5 style=dashed label="monetizes" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_15.txt b/test/diagrams/scanned_medium/diagrams_15.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6c73984e5121e1fc6fe32d54fb64da5771a98334
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_15.txt
@@ -0,0 +1,12 @@
+<Actor Rehearsal, connectedTo, Licensing Approval>
+<Animation Production, manages, Stunt Coordination>
+<Broadcast Scheduling, connectedTo, Actor Rehearsal>
+<Concert Promotion, connectedTo, Game Development>
+<Game Development, mixes, Premiere Event>
+<Licensing Approval, edits, Merchandise Creation>
+<Live Performance, writes, Sound Engineering>
+<Merchandise Creation, connectedTo, Concert Promotion>
+<Premiere Event, audits, Animation Production>
+<Sound Engineering, connectedTo, Post_Production Audio Mixing>
+<Sound Engineering, monetizes, Licensing Approval>
+<Stunt Coordination, connectedTo, Live Performance>
diff --git a/test/diagrams/scanned_medium/diagrams_150.dot b/test/diagrams/scanned_medium/diagrams_150.dot
new file mode 100644
index 0000000000000000000000000000000000000000..06925ff721f5ba1b60538f4567d6591755296b3f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_150.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=TB
+	N0 [label="Targeting" color="#AED581" fillcolor="#F0F4C3" shape=database style=filled]
+	N1 [label="Defense Procurement" color="#42A5F5" fillcolor="#F1F8FF" shape=inputoutput style=filled]
+	N2 [label="Veteran Support" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N3 [label="Civil_Military Cooperation" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	N4 [label="Logistics Support" color="#92C79A" fillcolor="#E8F0EA" shape=database style=filled]
+	N5 [label="Unmanned Systems Operation" color="#AED581" fillcolor="#F0F4C3" shape=document style=filled]
+	N6 [label="Electronic Warfare" color="#92C79A" fillcolor="#E8F0EA" shape=action style=filled]
+	N7 [label="Naval Operations" color="#42A5F5" fillcolor="#F1F8FF" shape=vnode_shape style=filled]
+	S0 [label="" color="#92C79A" fillcolor="#E8F0EA" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#92C79A" fillcolor="#E8F0EA" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#AED581" fillcolor="#F0F4C3" 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="Chaplain Services" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+		nest0_1 [label="Space Operations" color="#AED581" fillcolor="#F0F4C3" shape=preparation style=filled]
+		nest0_2 [label="Weapon Systems Development" color="#42A5F5" fillcolor="#F1F8FF" shape=hexagon 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="#42A5F5" penwidth=1.5 style=dashed label="detains" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="attacks" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="supplies" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#AED581" penwidth=1.5 style=solid label="surveys" dir=forward]
+	N2 -> nest0_0 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#92C79A" penwidth=1.5 style=dashed label="plans" dir=forward]
+	S0 -> N5 [color="#AED581" penwidth=1.5 style=dashed label="maintains" dir=forward]
+	N0 -> S1 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N4 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_150.txt b/test/diagrams/scanned_medium/diagrams_150.txt
new file mode 100644
index 0000000000000000000000000000000000000000..62ecd71c71466ed3fba1f45fe1f399b2bbe46cfc
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_150.txt
@@ -0,0 +1,17 @@
+<Chaplain Services, connectedTo, Space Operations>
+<Civil_Military Cooperation, attacks, Logistics Support>
+<Defense Procurement, connectedTo, Logistics Support>
+<Defense Procurement, connectedTo, Veteran Support>
+<Defense Procurement, maintains, Unmanned Systems Operation>
+<Defense Procurement, plans, Electronic Warfare>
+<Electronic Warfare, connectedTo, Naval Operations>
+<Logistics Support, connectedTo, Unmanned Systems Operation>
+<Space Operations, surveys, Weapon Systems Development>
+<Targeting, connectedTo, Defense Procurement>
+<Targeting, connectedTo, Logistics Support>
+<Targeting, connectedTo, Unmanned Systems Operation>
+<Unmanned Systems Operation, supplies, Electronic Warfare>
+<Veteran Support, connectedTo, Chaplain Services>
+<Veteran Support, connectedTo, Logistics Support>
+<Veteran Support, detains, Civil_Military Cooperation>
+<Weapon Systems Development, connectedTo, Veteran Support>
diff --git a/test/diagrams/scanned_medium/diagrams_151.dot b/test/diagrams/scanned_medium/diagrams_151.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cbdcc02ed528ed11fa72e23e209030483487cac4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_151.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=BT
+	N0 [label="Crew Resource Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=document style=filled]
+	N1 [label="Crew Scheduling" color="#BDBDBD" fillcolor="#F5F5F5" shape=parallelogram style=filled]
+	N2 [label="Noise Abatement Procedures" color="#673AB7" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+	N3 [label="Airport Security Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=database style=filled]
+	N4 [label="Flight Simulation" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+	N5 [label="Air Cargo Logistics" color="#BDBDBD" fillcolor="#F5F5F5" shape=multipledocuments style=filled]
+	N6 [label="Aircraft De_icing" color="#BDBDBD" fillcolor="#F5F5F5" shape=parallelogram style=filled]
+	N7 [label="In_flight Service" color="#BDBDBD" fillcolor="#F5F5F5" shape=database style=filled]
+	N8 [label="Airport Operations" color="#CD8FF2" fillcolor="#ECCFF5" shape=database style=filled]
+	N9 [label="Pilot Training" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+	N10 [label="Engine Overhaul" color="#673AB7" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+	N11 [label="Passenger Boarding" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+	N12 [label="Passenger Check_in" color="#673AB7" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	S0 [label="" color="#673AB7" fillcolor="#D1C4E9" 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_Route Optimization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Route Optimization"
+		nest0_0 [label="Gate Assignment" color="#673AB7" fillcolor="#D1C4E9" shape=rectangle style=filled]
+		nest0_1 [label="Emergency Procedures Training" color="#BDBDBD" fillcolor="#F5F5F5" shape=document style=filled]
+		nest0_2 [label="Sustainable Aviation Fuel Development" color="#673AB7" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+		nest0_3 [label="Airspace Management" color="#673AB7" fillcolor="#D1C4E9" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="communicates" dir=forward]
+	N2 -> N3 [color="#CD8FF2" penwidth=1.5 style=solid label="briefs" dir=forward]
+	N3 -> N4 [color="#BDBDBD" penwidth=1.5 style=dashed label="inspects" dir=forward]
+	N4 -> N5 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed label="plans" dir=forward]
+	N11 -> N12 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#000000" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	nest0_3 -> N7 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N4 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed label="lands" dir=forward]
+	N1 -> M0 [color="#BDBDBD" penwidth=1.5 style=solid label="designs" dir=forward]
+	N5 -> M0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	M0 -> N11 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_152.dot b/test/diagrams/scanned_medium/diagrams_152.dot
new file mode 100644
index 0000000000000000000000000000000000000000..37f8f965b2bbad40e86a1c6152e8e609511af2c9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_152.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=TB
+	N0 [label="Cargo Loading" color="#FBC02D" fillcolor="#FFFDE7" shape=diamond style=filled]
+	N1 [label="Air Cargo Logistics" color="#FFA726" fillcolor="#FFF3E0" shape=document style=filled]
+	N2 [label="Pilot Training" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N3 [label="In_flight Service" color="#FBC02D" fillcolor="#FFFDE7" shape=document style=filled]
+	N4 [label="Runway Management" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+	N5 [label="Flight Planning" color="#FFA726" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N6 [label="Airworthiness Certification" color="#FBC02D" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	N7 [label="Remote Tower Operations" color="#FFA726" fillcolor="#FFF3E0" shape=action style=filled]
+	N8 [label="Fueling Operations" color="#A188D0" fillcolor="#DACBE3" shape=rectangle style=filled]
+	N9 [label="Baggage Handling" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N10 [label="Aircraft De_icing" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+	N11 [label="Regulatory Compliance" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	subgraph cluster_Ground Support {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ground Support"
+		nest0_0 [label="Security Screening" color="#FFA726" fillcolor="#FFF3E0" shape=hexagon style=filled]
+		nest0_1 [label="Passenger Boarding" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+		nest0_2 [label="Flight Simulation" color="#A188D0" fillcolor="#DACBE3" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#A188D0" 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFA726" penwidth=1.5 style=dashed label="regulates" dir=forward]
+	N5 -> N6 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFA726" penwidth=1.5 style=solid label="responds" dir=forward]
+	N9 -> N10 [color="#FFA726" penwidth=1.5 style=dashed label="audits" dir=forward]
+	N10 -> N11 [color="#A188D0" 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]
+	N4 -> nest0_0 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N7 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_1 [color="#FFA726" penwidth=1.5 style=solid label="manages" dir=forward]
+	nest0_1 -> N5 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_152.txt b/test/diagrams/scanned_medium/diagrams_152.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f177f04e9e0ac457ea624a6d00084ce01563f79c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_152.txt
@@ -0,0 +1,19 @@
+<Air Cargo Logistics, connectedTo, Pilot Training>
+<Aircraft De_icing, connectedTo, Regulatory Compliance>
+<Airworthiness Certification, connectedTo, Remote Tower Operations>
+<Baggage Handling, audits, Aircraft De_icing>
+<Cargo Loading, connectedTo, Air Cargo Logistics>
+<Flight Planning, connectedTo, Airworthiness Certification>
+<Flight Planning, connectedTo, Runway Management>
+<Flight Simulation, connectedTo, Remote Tower Operations>
+<Fueling Operations, responds, Baggage Handling>
+<In_flight Service, connectedTo, Runway Management>
+<Passenger Boarding, connectedTo, Flight Planning>
+<Passenger Boarding, connectedTo, Flight Simulation>
+<Pilot Training, connectedTo, In_flight Service>
+<Pilot Training, connectedTo, Security Screening>
+<Pilot Training, manages, Passenger Boarding>
+<Remote Tower Operations, connectedTo, Fueling Operations>
+<Runway Management, connectedTo, Security Screening>
+<Runway Management, regulates, Flight Planning>
+<Security Screening, connectedTo, Passenger Boarding>
diff --git a/test/diagrams/scanned_medium/diagrams_153.dot b/test/diagrams/scanned_medium/diagrams_153.dot
new file mode 100644
index 0000000000000000000000000000000000000000..925345b6ea29154611d9ce8838622eeb5b6a7eb2
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_153.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=TB
+	N0 [label="Gate Assignment" color="#673AB7" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+	N1 [label="Crew Resource Management" color="#A188D0" fillcolor="#DACBE3" shape=action style=filled]
+	N2 [label="Weather Briefing" color="#A188D0" fillcolor="#DACBE3" shape=database style=filled]
+	N3 [label="Fueling Operations" color="#A188D0" fillcolor="#DACBE3" shape=document style=filled]
+	N4 [label="Unmanned Aerial Vehicle Integration" color="#673AB7" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N5 [label="Aerospace Engineering" color="#A188D0" fillcolor="#DACBE3" shape=predefinedprocess style=filled]
+	N6 [label="Noise Abatement Procedures" color="#A188D0" fillcolor="#DACBE3" shape=predefinedprocess style=filled]
+	N7 [label="Airport Operations" color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+	N8 [label="Fleet Management" color="#42A5F5" fillcolor="#F1F8FF" shape=rect style=filled]
+	N9 [label="In_flight Service" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+	N10 [label="Engine Overhaul" color="#A188D0" fillcolor="#DACBE3" shape=predefinedprocess style=filled]
+	N11 [label="Navigation System Check" color="#42A5F5" fillcolor="#F1F8FF" shape=hexagon style=filled]
+	S1 [label="" color="#A188D0" fillcolor="#DACBE3" 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]
+	subgraph cluster_Emergency Procedures Training {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Emergency Procedures Training"
+		nest0_0 [label="Aircraft De_icing" color="#A188D0" fillcolor="#DACBE3" shape=action style=filled]
+		nest0_1 [label="Remote Tower Operations" color="#42A5F5" fillcolor="#F1F8FF" shape=vnode_shape style=filled]
+		nest0_2 [label="Next_Generation Air Traffic Management" color="#42A5F5" fillcolor="#F1F8FF" shape=predefinedprocess style=filled]
+		nest0_3 [label="Passenger Check_in" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#A188D0" penwidth=1.5 style=solid label="reports" dir=forward]
+	N4 -> N5 [color="#A188D0" 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 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="#A188D0" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N10 -> N11 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed label="designs" dir=forward]
+	nest0_2 -> nest0_3 [color="#42A5F5" penwidth=1.5 style=solid label="repairs" dir=forward]
+	N1 -> nest0_0 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N11 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid label="trains" dir=forward]
+	N1 -> M1 [color="#673AB7" penwidth=1.5 style=dashed label="certifies" dir=forward]
+	M1 -> N7 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_153.txt b/test/diagrams/scanned_medium/diagrams_153.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f861bb8ca690797934ab434176e6d6c27f3be1a9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_153.txt
@@ -0,0 +1,20 @@
+<Aerospace Engineering, connectedTo, Noise Abatement Procedures>
+<Aircraft De_icing, connectedTo, Remote Tower Operations>
+<Airport Operations, connectedTo, Engine Overhaul>
+<Airport Operations, connectedTo, Fleet Management>
+<Airport Operations, connectedTo, In_flight Service>
+<Crew Resource Management, certifies, Airport Operations>
+<Crew Resource Management, connectedTo, Aircraft De_icing>
+<Crew Resource Management, connectedTo, Weather Briefing>
+<Engine Overhaul, connectedTo, Navigation System Check>
+<Fleet Management, connectedTo, In_flight Service>
+<Fueling Operations, reports, Unmanned Aerial Vehicle Integration>
+<Gate Assignment, connectedTo, Crew Resource Management>
+<Gate Assignment, trains, Airport Operations>
+<In_flight Service, optimizes, Engine Overhaul>
+<Next_Generation Air Traffic Management, repairs, Passenger Check_in>
+<Noise Abatement Procedures, connectedTo, Airport Operations>
+<Passenger Check_in, connectedTo, Navigation System Check>
+<Remote Tower Operations, designs, Next_Generation Air Traffic Management>
+<Unmanned Aerial Vehicle Integration, connectedTo, Aerospace Engineering>
+<Weather Briefing, connectedTo, Fueling Operations>
diff --git a/test/diagrams/scanned_medium/diagrams_154.txt b/test/diagrams/scanned_medium/diagrams_154.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c698564174fd67ceaa37ffc7b1d7229baec8daa2
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_154.txt
@@ -0,0 +1,23 @@
+<Altitude Tracking, connectedTo, Hazard Alerts>
+<Cycle Route Planning, connectedTo, Satellite Navigation Systems>
+<Cycle Route Planning, connectedTo, Traffic Information>
+<ETA Estimation, alerts, Marine Charting>
+<GPS Positioning, connectedTo, Geofencing>
+<Geofencing, connectedTo, Offline Map Support>
+<Hazard Alerts, connectedTo, Lane Guidance>
+<Historical Traffic Data Analysis, connectedTo, ETA Estimation>
+<Inertial Navigation System, locates, Satellite Navigation Systems>
+<Lane Guidance, transmits, GPS Positioning>
+<Lane Guidance, verifies, Offline Map Support>
+<Map Display, avoids, Historical Traffic Data Analysis>
+<Map Display, connectedTo, Lane Guidance>
+<Map Display, connectedTo, Offline Map Support>
+<Marine Charting, connectedTo, Lane Guidance>
+<Route Calculation, steers, Altitude Tracking>
+<Satellite Navigation Systems, connectedTo, Offline Map Support>
+<Satellite Navigation Systems, connectedTo, Speed Calculation>
+<Speed Calculation, records, Wearable Device Navigation>
+<Traffic Information, connectedTo, Inertial Navigation System>
+<Traffic Information, connectedTo, Satellite Navigation Systems>
+<Wearable Device Navigation, connectedTo, Map Display>
+<Wearable Device Navigation, connectedTo, Route Calculation>
diff --git a/test/diagrams/scanned_medium/diagrams_155.dot b/test/diagrams/scanned_medium/diagrams_155.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0fbba7df9473acc3e04c969d475a078d10a17b10
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_155.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=RL
+	N0 [label="Traffic Information" color="#2196F3" fillcolor="#BBDEFB" shape=rect style=filled]
+	N1 [label="ETA Estimation" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N2 [label="Navigation Data Update" color="#2196F3" fillcolor="#BBDEFB" shape=rect style=filled]
+	N3 [label="Autonomous Vehicle Navigation" color="#A188DB" fillcolor="#DED7F0" shape=rect style=filled]
+	N4 [label="Bearing and Distance Calculation" color="#2196F3" fillcolor="#BBDEFB" shape=vnode_shape style=filled]
+	N5 [label="Map Display" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N6 [label="Public Transit Navigation" color="#FFA726" fillcolor="#FFF3E0" shape=inputoutput style=filled]
+	N7 [label="Multi_modal Navigation" color="#A188DB" fillcolor="#DED7F0" shape=parallelogram style=filled]
+	N8 [label="Indoor Navigation" color="#2196F3" fillcolor="#BBDEFB" shape=preparation style=filled]
+	S0 [label="" color="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#A188DB" fillcolor="#DED7F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Real_Time Re_routing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Real_Time Re_routing"
+		nest0_0 [label="Lane Guidance" color="#A188DB" fillcolor="#DED7F0" shape=rectangle style=filled]
+		nest0_1 [label="Inertial Navigation System" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+		nest0_2 [label="GPS Positioning" color="#FFA726" fillcolor="#FFF3E0" shape=database style=filled]
+		nest0_3 [label="Route Calculation" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="locates" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="receives" dir=forward]
+	nest0_0 -> nest0_1 [color="#FFA726" penwidth=1.5 style=dashed label="plans" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_0 [color="#2196F3" penwidth=1.5 style=solid label="transmits" dir=forward]
+	nest0_3 -> N3 [color="#A188DB" penwidth=1.5 style=dashed label="tracks" dir=forward]
+	N0 -> S0 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_155.txt b/test/diagrams/scanned_medium/diagrams_155.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2723055bfdb3736a3efbbe38f0a28853cb06af78
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_155.txt
@@ -0,0 +1,17 @@
+<Autonomous Vehicle Navigation, connectedTo, Bearing and Distance Calculation>
+<Bearing and Distance Calculation, connectedTo, Map Display>
+<ETA Estimation, connectedTo, Bearing and Distance Calculation>
+<ETA Estimation, connectedTo, Navigation Data Update>
+<GPS Positioning, connectedTo, Route Calculation>
+<Inertial Navigation System, connectedTo, GPS Positioning>
+<Lane Guidance, plans, Inertial Navigation System>
+<Map Display, locates, Public Transit Navigation>
+<Multi_modal Navigation, receives, Indoor Navigation>
+<Multi_modal Navigation, transmits, Lane Guidance>
+<Navigation Data Update, connectedTo, Autonomous Vehicle Navigation>
+<Navigation Data Update, connectedTo, Bearing and Distance Calculation>
+<Public Transit Navigation, connectedTo, Multi_modal Navigation>
+<Route Calculation, tracks, Autonomous Vehicle Navigation>
+<Traffic Information, connectedTo, ETA Estimation>
+<Traffic Information, connectedTo, Indoor Navigation>
+<Traffic Information, connectedTo, Map Display>
diff --git a/test/diagrams/scanned_medium/diagrams_156.dot b/test/diagrams/scanned_medium/diagrams_156.dot
new file mode 100644
index 0000000000000000000000000000000000000000..558bcf81d5e210b0d53e8fdc7d11ecb9230dfa78
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_156.dot
@@ -0,0 +1,52 @@
+digraph {
+	rankdir=LR
+	N0 [label="Offline Map Support" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+	N1 [label="Cycle Route Planning" color="#42A5F5" fillcolor="#F1F8FF" shape=document style=filled]
+	N2 [label="Geocoding" color="#607D8B" fillcolor="#CFD8DC" shape=vnode_shape style=filled]
+	N3 [label="Autonomous Vehicle Navigation" color="#607D8B" fillcolor="#CFD8DC" shape=database style=filled]
+	N4 [label="Digital Compass Integration" color="#607D8B" fillcolor="#CFD8DC" shape=document style=filled]
+	N5 [label="Lane Guidance" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+	N6 [label="Indoor Navigation" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+	N7 [label="Reverse Geocoding" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N8 [label="Inertial Navigation System" color="#42A5F5" fillcolor="#F1F8FF" shape=document style=filled]
+	N9 [label="Real_Time Re_routing" color="#FFF8A6" fillcolor="#FFFDE0" shape=multipledocuments style=filled]
+	N10 [label="Map Display" color="#FFF8A6" fillcolor="#FFFDE0" shape=diamond style=filled]
+	N11 [label="Altitude Tracking" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N12 [label="Navigation Data Update" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	S0 [label="" color="#42A5F5" fillcolor="#F1F8FF" 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]
+	M1 [label="" color="#42A5F5" fillcolor="#F1F8FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Hazard Alerts {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Hazard Alerts"
+		nest0_0 [label="Augmented Reality Navigation" color="#607D8B" fillcolor="#CFD8DC" shape=predefinedprocess style=filled]
+		nest0_1 [label="Waypoint Setting" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+		nest0_2 [label="GPS Positioning" color="#FFF8A6" fillcolor="#FFFDE0" shape=action 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="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="visualizes" dir=forward]
+	N4 -> N5 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFF8A6" penwidth=1.5 style=solid label="secures" dir=forward]
+	N6 -> N7 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#42A5F5" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N9 -> N10 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#42A5F5" penwidth=1.5 style=dashed label="predicts" dir=forward]
+	N11 -> N12 [color="#FFF8A6" 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="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N12 [color="#42A5F5" penwidth=1.5 style=solid label="receives" dir=forward]
+	N2 -> S0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#607D8B" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	S0 -> N5 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#607D8B" penwidth=1.5 style=solid label="routes" dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N8 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_156.txt b/test/diagrams/scanned_medium/diagrams_156.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0ac94b9b96d09a75a0c92a27320b4a596152a081
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_156.txt
@@ -0,0 +1,22 @@
+<Altitude Tracking, connectedTo, Navigation Data Update>
+<Augmented Reality Navigation, connectedTo, Waypoint Setting>
+<Autonomous Vehicle Navigation, visualizes, Digital Compass Integration>
+<Cycle Route Planning, connectedTo, Geocoding>
+<Cycle Route Planning, connectedTo, Inertial Navigation System>
+<Digital Compass Integration, connectedTo, Lane Guidance>
+<GPS Positioning, receives, Navigation Data Update>
+<Geocoding, connectedTo, Autonomous Vehicle Navigation>
+<Geocoding, connectedTo, Inertial Navigation System>
+<Geocoding, connectedTo, Lane Guidance>
+<Geocoding, optimizes, Real_Time Re_routing>
+<Geocoding, routes, Inertial Navigation System>
+<Indoor Navigation, connectedTo, Reverse Geocoding>
+<Inertial Navigation System, analyzes, Real_Time Re_routing>
+<Lane Guidance, secures, Indoor Navigation>
+<Map Display, predicts, Altitude Tracking>
+<Offline Map Support, connectedTo, Cycle Route Planning>
+<Offline Map Support, connectedTo, Inertial Navigation System>
+<Real_Time Re_routing, connectedTo, Augmented Reality Navigation>
+<Real_Time Re_routing, connectedTo, Map Display>
+<Reverse Geocoding, connectedTo, Inertial Navigation System>
+<Waypoint Setting, connectedTo, GPS Positioning>
diff --git a/test/diagrams/scanned_medium/diagrams_157.dot b/test/diagrams/scanned_medium/diagrams_157.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a5b605e8374741548dc1887b9b977f86b18941b7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_157.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=BT
+	N0 [label="Sustainable 3D Printing Materials" color="#7E57C2" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	N1 [label="Fused Deposition Modeling" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N2 [label="Maintenance and Repair of Printers" color="#DCE775" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N3 [label="Digital Twin for 3D Prints" color="#73C6BC" fillcolor="#D0EFEE" shape=rect style=filled]
+	N4 [label="On_Demand Production" color="#DCE775" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N5 [label="3D Model Design" color="#DCE775" fillcolor="#F9FBE7" shape=diamond style=filled]
+	N6 [label="Stereolithography" color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+	N7 [label="Additive Manufacturing" color="#DCE775" fillcolor="#F9FBE7" shape=database style=filled]
+	N8 [label="Printer Setup" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+	N9 [label="Selective Laser Sintering" color="#DCE775" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N10 [label="Prototyping" color="#73C6BC" fillcolor="#D0EFEE" shape=action style=filled]
+	S0 [label="" color="#DCE775" fillcolor="#F9FBE7" 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]
+	subgraph cluster_Material Research and Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Material Research and Development"
+		nest0_0 [label="Mass Customization" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+		nest0_1 [label="Multi_Material Printing" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+		nest0_2 [label="Distributed Manufacturing" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+		nest0_3 [label="Construction 3D Printing" color="#DCE775" fillcolor="#F9FBE7" shape=action style=filled]
+	}
+	N0 -> N1 [color="#7E57C2" penwidth=1.5 style=solid label="licenses" dir=forward]
+	N1 -> N2 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#73C6BC" penwidth=1.5 style=dashed label="customizes" dir=forward]
+	N3 -> N4 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#DCE775" penwidth=1.5 style=solid label="shares" dir=forward]
+	N5 -> N6 [color="#DCE775" 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=dashed label="produces" dir=forward]
+	N9 -> N10 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#DCE775" penwidth=1.5 style=solid label="enhances" dir=forward]
+	nest0_2 -> nest0_3 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N6 [color="#7E57C2" penwidth=1.5 style=dashed label="integrates" dir=forward]
+	N7 -> S0 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N8 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_157.txt b/test/diagrams/scanned_medium/diagrams_157.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d30c347d3028266f96f353262549ce47fc16f276
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_157.txt
@@ -0,0 +1,19 @@
+<3D Model Design, connectedTo, Printer Setup>
+<3D Model Design, connectedTo, Stereolithography>
+<Additive Manufacturing, connectedTo, Mass Customization>
+<Additive Manufacturing, connectedTo, Printer Setup>
+<Additive Manufacturing, connectedTo, Prototyping>
+<Additive Manufacturing, connectedTo, Selective Laser Sintering>
+<Construction 3D Printing, integrates, Stereolithography>
+<Digital Twin for 3D Prints, connectedTo, On_Demand Production>
+<Distributed Manufacturing, connectedTo, Construction 3D Printing>
+<Fused Deposition Modeling, connectedTo, Maintenance and Repair of Printers>
+<Maintenance and Repair of Printers, customizes, Digital Twin for 3D Prints>
+<Mass Customization, connectedTo, Multi_Material Printing>
+<Multi_Material Printing, enhances, Distributed Manufacturing>
+<On_Demand Production, shares, 3D Model Design>
+<Printer Setup, produces, Selective Laser Sintering>
+<Selective Laser Sintering, connectedTo, Prototyping>
+<Stereolithography, connectedTo, Additive Manufacturing>
+<Stereolithography, connectedTo, Printer Setup>
+<Sustainable 3D Printing Materials, licenses, Fused Deposition Modeling>
diff --git a/test/diagrams/scanned_medium/diagrams_158.dot b/test/diagrams/scanned_medium/diagrams_158.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7c8dea021b7d7119026f10c133b6ef7fabfdd2d8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_158.dot
@@ -0,0 +1,49 @@
+digraph {
+	rankdir=LR
+	N0 [label="Slicing Software Operation" color="#BDBDBD" fillcolor="#F5F5F5" shape=inputoutput style=filled]
+	N1 [label="Quality Control" color="#A2D0FF" fillcolor="#E8F0FF" shape=inputoutput style=filled]
+	N2 [label="4D Printing" color="#A2D0FF" fillcolor="#E8F0FF" shape=action style=filled]
+	N3 [label="Mass Customization" color="#FFF8A6" fillcolor="#FFFDE0" shape=database style=filled]
+	N4 [label="Printing Parameter Optimization" color="#BDBDBD" fillcolor="#F5F5F5" shape=multipledocuments style=filled]
+	N5 [label="Additive Manufacturing" color="#BDBDBD" fillcolor="#F5F5F5" shape=vnode_shape style=filled]
+	N6 [label="Medical Device Prototyping" color="#A2D0FF" fillcolor="#E8F0FF" shape=rect style=filled]
+	N7 [label="Direct Metal Laser Sintering" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+	N8 [label="Maintenance and Repair of Printers" color="#FFF8A6" fillcolor="#FFFDE0" shape=document style=filled]
+	N9 [label="Distributed Manufacturing" color="#A2D0FF" fillcolor="#E8F0FF" shape=document style=filled]
+	N10 [label="Sustainable 3D Printing Materials" color="#BDBDBD" fillcolor="#F5F5F5" shape=preparation style=filled]
+	N11 [label="Custom Part Production" color="#FFF8A6" fillcolor="#FFFDE0" shape=document style=filled]
+	S0 [label="" color="#A2D0FF" fillcolor="#E8F0FF" 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]
+	subgraph cluster_Food Printing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Food Printing"
+		nest0_0 [label="Multi_Material Printing" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+		nest0_1 [label="Aerospace Part Production" color="#FFF8A6" fillcolor="#FFFDE0" shape=hexagon style=filled]
+		nest0_2 [label="Digital Twin for 3D Prints" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+		nest0_3 [label="Educational Applications" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A2D0FF" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="calibrates" dir=forward]
+	N4 -> N5 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFF8A6" penwidth=1.5 style=solid label="repairs" dir=forward]
+	N9 -> N10 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#A2D0FF" 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="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest0_0 [color="#FFF8A6" penwidth=1.5 style=solid label="distributes" dir=forward]
+	nest0_3 -> N4 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S0 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#A2D0FF" penwidth=1.5 style=dashed label="creates" dir=forward]
+	S0 -> N9 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#FFF8A6" penwidth=1.5 style=solid label="models" dir=forward]
+	M1 -> N8 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_158.txt b/test/diagrams/scanned_medium/diagrams_158.txt
new file mode 100644
index 0000000000000000000000000000000000000000..af172df8edb520c0a0b77a2295297cbed3628306
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_158.txt
@@ -0,0 +1,21 @@
+<4D Printing, secures, Mass Customization>
+<Additive Manufacturing, connectedTo, Medical Device Prototyping>
+<Aerospace Part Production, connectedTo, Digital Twin for 3D Prints>
+<Digital Twin for 3D Prints, connectedTo, Educational Applications>
+<Direct Metal Laser Sintering, connectedTo, Distributed Manufacturing>
+<Direct Metal Laser Sintering, connectedTo, Maintenance and Repair of Printers>
+<Direct Metal Laser Sintering, creates, Sustainable 3D Printing Materials>
+<Distributed Manufacturing, connectedTo, Sustainable 3D Printing Materials>
+<Educational Applications, connectedTo, Printing Parameter Optimization>
+<Maintenance and Repair of Printers, repairs, Distributed Manufacturing>
+<Mass Customization, calibrates, Printing Parameter Optimization>
+<Mass Customization, models, Maintenance and Repair of Printers>
+<Medical Device Prototyping, connectedTo, Direct Metal Laser Sintering>
+<Multi_Material Printing, connectedTo, Aerospace Part Production>
+<Printing Parameter Optimization, connectedTo, Additive Manufacturing>
+<Quality Control, connectedTo, 4D Printing>
+<Quality Control, connectedTo, Maintenance and Repair of Printers>
+<Slicing Software Operation, connectedTo, Maintenance and Repair of Printers>
+<Slicing Software Operation, connectedTo, Quality Control>
+<Sustainable 3D Printing Materials, connectedTo, Custom Part Production>
+<Sustainable 3D Printing Materials, distributes, Multi_Material Printing>
diff --git a/test/diagrams/scanned_medium/diagrams_159.dot b/test/diagrams/scanned_medium/diagrams_159.dot
new file mode 100644
index 0000000000000000000000000000000000000000..586b60c15ca3da5f404edea9b26ec3e447c55ec3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_159.dot
@@ -0,0 +1,56 @@
+digraph {
+	rankdir=RL
+	N0 [label="4D Printing" color="#F06292" fillcolor="#FCE4EC" shape=database style=filled]
+	N1 [label="Fused Deposition Modeling" color="#F06292" fillcolor="#FCE4EC" shape=inputoutput style=filled]
+	N2 [label="Support Structure Design" color="#B8C0F5" fillcolor="#ECF0FD" shape=parallelogram style=filled]
+	N3 [label="Bioprinting" color="#E91E63" fillcolor="#FCE4EC" shape=inputoutput style=filled]
+	N4 [label="Maintenance and Repair of Printers" color="#F06292" fillcolor="#FCE4EC" shape=preparation style=filled]
+	N5 [label="Reverse Engineering with 3D Printing" color="#B8C0F5" fillcolor="#ECF0FD" shape=preparation style=filled]
+	N6 [label="Direct Metal Laser Sintering" color="#F06292" fillcolor="#FCE4EC" shape=predefinedprocess style=filled]
+	N7 [label="Sustainable 3D Printing Materials" color="#B8C0F5" fillcolor="#ECF0FD" shape=document style=filled]
+	N8 [label="Post_Processing" color="#E91E63" fillcolor="#FCE4EC" shape=document style=filled]
+	N9 [label="Educational Applications" color="#E91E63" fillcolor="#FCE4EC" shape=rect style=filled]
+	N10 [label="Selective Laser Sintering" color="#F06292" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N11 [label="Printer Setup" color="#E91E63" fillcolor="#FCE4EC" shape=vnode_shape style=filled]
+	N12 [label="Material Research and Development" color="#E91E63" fillcolor="#FCE4EC" shape=preparation style=filled]
+	N13 [label="Rapid Manufacturing" color="#F06292" fillcolor="#FCE4EC" shape=preparation 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]
+	M0 [label="" color="#E91E63" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#E91E63" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_3D Model Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="3D Model Design"
+		nest0_0 [label="Mass Customization" color="#E91E63" fillcolor="#FCE4EC" shape=rect style=filled]
+		nest0_1 [label="Aerospace Part Production" color="#F06292" fillcolor="#FCE4EC" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="creates" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#E91E63" penwidth=1.5 style=dashed label="materials" dir=forward]
+	N8 -> N9 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#E91E63" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N10 -> N11 [color="#F06292" penwidth=1.5 style=solid label="innovates" dir=forward]
+	N11 -> N12 [color="#B8C0F5" penwidth=1.5 style=dashed label="scans" dir=forward]
+	N12 -> N13 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N7 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#E91E63" penwidth=1.5 style=solid label="prints" dir=forward]
+	S0 -> N10 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N0 -> S1 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N3 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_159.txt b/test/diagrams/scanned_medium/diagrams_159.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c8705d4241b5b4ebb37b34f2f9b7303bd27d434a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_159.txt
@@ -0,0 +1,24 @@
+<4D Printing, connectedTo, Bioprinting>
+<4D Printing, connectedTo, Educational Applications>
+<4D Printing, creates, Fused Deposition Modeling>
+<Aerospace Part Production, connectedTo, Sustainable 3D Printing Materials>
+<Bioprinting, connectedTo, Maintenance and Repair of Printers>
+<Direct Metal Laser Sintering, connectedTo, Mass Customization>
+<Direct Metal Laser Sintering, connectedTo, Sustainable 3D Printing Materials>
+<Educational Applications, analyzes, Selective Laser Sintering>
+<Fused Deposition Modeling, connectedTo, Selective Laser Sintering>
+<Fused Deposition Modeling, connectedTo, Support Structure Design>
+<Maintenance and Repair of Printers, connectedTo, Educational Applications>
+<Maintenance and Repair of Printers, connectedTo, Reverse Engineering with 3D Printing>
+<Maintenance and Repair of Printers, connectedTo, Selective Laser Sintering>
+<Mass Customization, connectedTo, Aerospace Part Production>
+<Material Research and Development, connectedTo, Rapid Manufacturing>
+<Post_Processing, connectedTo, Educational Applications>
+<Post_Processing, connectedTo, Selective Laser Sintering>
+<Post_Processing, prints, Rapid Manufacturing>
+<Printer Setup, scans, Material Research and Development>
+<Reverse Engineering with 3D Printing, connectedTo, Direct Metal Laser Sintering>
+<Reverse Engineering with 3D Printing, connectedTo, Educational Applications>
+<Selective Laser Sintering, innovates, Printer Setup>
+<Support Structure Design, connectedTo, Bioprinting>
+<Sustainable 3D Printing Materials, materials, Post_Processing>
diff --git a/test/diagrams/scanned_medium/diagrams_16.dot b/test/diagrams/scanned_medium/diagrams_16.dot
new file mode 100644
index 0000000000000000000000000000000000000000..493ccce3d7454eba1c4b1da3d0fce58cfee85890
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_16.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=TB
+	N0 [label="Ecosystem Restoration" color="#F7BEE0" fillcolor="#FAEBF3" shape=hexagon style=filled]
+	N1 [label="Green Certification" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N2 [label="Regulatory Compliance" color="#F7BEE0" fillcolor="#FAEBF3" shape=rectangle style=filled]
+	N3 [label="Waste Water Treatment" color="#81C784" fillcolor="#F1F8E9" shape=hexagon style=filled]
+	N4 [label="Recycling Process" color="#81C784" fillcolor="#F1F8E9" shape=multipledocuments style=filled]
+	N5 [label="Soil Testing" color="#F7BEE0" fillcolor="#FAEBF3" shape=document style=filled]
+	N6 [label="Waste Collection" color="#F7BEE0" fillcolor="#FAEBF3" shape=rect style=filled]
+	N7 [label="Renewable Energy Grid Integration" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+	N8 [label="Environmental Education Programs" color="#F7BEE0" fillcolor="#FAEBF3" shape=vnode_shape style=filled]
+	N9 [label="Environmental Research" color="#E91E63" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N10 [label="Hazardous Material Handling" color="#81C784" fillcolor="#F1F8E9" shape=document style=filled]
+	N0 -> N1 [color="#F7BEE0" penwidth=1.5 style=dashed label="advises" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#E91E63" penwidth=1.5 style=solid label="detects" dir=forward]
+	N5 -> N6 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="certifies" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="educates" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="enforces" dir=forward]
+	N9 -> N10 [color="#E91E63" penwidth=1.5 style=solid label="implements" dir=forward]
+	N2 -> N8 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N0 [color="#E91E63" penwidth=1.5 style=solid label="recycles" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_16.txt b/test/diagrams/scanned_medium/diagrams_16.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b826c761b6dcd43530fe2e7fc14aec0ee5e86af9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_16.txt
@@ -0,0 +1,12 @@
+<Ecosystem Restoration, advises, Green Certification>
+<Environmental Education Programs, enforces, Environmental Research>
+<Environmental Research, implements, Hazardous Material Handling>
+<Green Certification, connectedTo, Regulatory Compliance>
+<Recycling Process, detects, Soil Testing>
+<Recycling Process, recycles, Ecosystem Restoration>
+<Regulatory Compliance, connectedTo, Environmental Education Programs>
+<Regulatory Compliance, connectedTo, Waste Water Treatment>
+<Renewable Energy Grid Integration, educates, Environmental Education Programs>
+<Soil Testing, connectedTo, Waste Collection>
+<Waste Collection, certifies, Renewable Energy Grid Integration>
+<Waste Water Treatment, connectedTo, Recycling Process>
diff --git a/test/diagrams/scanned_medium/diagrams_160.txt b/test/diagrams/scanned_medium/diagrams_160.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f0486ea8c06e2c37c18185ce2ef46fa16b90f951
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_160.txt
@@ -0,0 +1,19 @@
+<Advanced Materials Research, connectedTo, Nanoelectronics>
+<Atomic Force Microscopy, functionalizes, Bio_Nanotechnology Interface>
+<Bio_Nanotechnology Interface, connectedTo, Advanced Materials Research>
+<Catalysis at Nanoscale, connectedTo, Nanomaterial Synthesis>
+<Computational Nanotechnology, connectedTo, Lab_on_a_Chip Devices>
+<Drug Delivery Systems, analyzes, Molecular Self_Assembly>
+<Drug Delivery Systems, optimizes, Scanning Electron Microscopy>
+<Lab_on_a_Chip Devices, connectedTo, Atomic Force Microscopy>
+<Molecular Self_Assembly, connectedTo, Advanced Materials Research>
+<Molecular Self_Assembly, connectedTo, Atomic Force Microscopy>
+<Molecular Self_Assembly, connectedTo, Nanotoxicology>
+<Nanomaterial Synthesis, connectedTo, Solar Cell Efficiency Enhancement>
+<Nanotoxicology, connectedTo, Regulatory Framework for Nanotech>
+<Public Perception of Nanotechnology, applies, Advanced Materials Research>
+<Public Perception of Nanotechnology, develops, Drug Delivery Systems>
+<Public Perception of Nanotechnology, secures, Atomic Force Microscopy>
+<Regulatory Framework for Nanotech, connectedTo, Computational Nanotechnology>
+<Scanning Electron Microscopy, connectedTo, Catalysis at Nanoscale>
+<Solar Cell Efficiency Enhancement, connectedTo, Molecular Self_Assembly>
diff --git a/test/diagrams/scanned_medium/diagrams_161.dot b/test/diagrams/scanned_medium/diagrams_161.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4059fb3b1114be20840e86daa19b06a2b41ff9be
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_161.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=TB
+	N0 [label="Transmission Electron Microscopy" color="#AABEC6" fillcolor="#E0E6E9" shape=predefinedprocess style=filled]
+	N1 [label="Nanomedicine Development" color="#F06292" fillcolor="#FCE4EC" shape=inputoutput style=filled]
+	N2 [label="Nanosensors" color="#AABEC6" fillcolor="#E0E6E9" shape=vnode_shape style=filled]
+	N3 [label="Atomic Force Microscopy" color="#AABEC6" fillcolor="#E0E6E9" shape=rectangle style=filled]
+	N4 [label="Drug Delivery Systems" color="#FFB74D" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N5 [label="Food Packaging Improvement" color="#F06292" fillcolor="#FCE4EC" shape=preparation style=filled]
+	N6 [label="Nanocoatings" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N7 [label="Nanodevice Fabrication" color="#FFB74D" fillcolor="#FFF3E0" shape=database 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]
+	M0 [label="" color="#AABEC6" fillcolor="#E0E6E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Ethical Implications of Nanotech {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ethical Implications of Nanotech"
+		nest0_0 [label="Nanoelectronics" color="#AABEC6" fillcolor="#E0E6E9" shape=vnode_shape style=filled]
+		nest0_1 [label="Quantum Dots" color="#FFB74D" fillcolor="#FFF3E0" shape=inputoutput style=filled]
+		nest0_2 [label="Lab_on_a_Chip Devices" color="#F06292" fillcolor="#FCE4EC" shape=document style=filled]
+	}
+	N0 -> N1 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#AABEC6" penwidth=1.5 style=dashed label="fabricates" dir=forward]
+	N2 -> N3 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFB74D" penwidth=1.5 style=dashed label="purifies" dir=forward]
+	N4 -> N5 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#F06292" penwidth=1.5 style=solid label="cleans" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N4 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=dashed label="complies" dir=forward]
+	N1 -> M0 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#AABEC6" penwidth=1.5 style=solid 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_medium/diagrams_161.txt b/test/diagrams/scanned_medium/diagrams_161.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6c9f5887358c8df00fc8627dbacf97dd37a34c59
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_161.txt
@@ -0,0 +1,17 @@
+<Atomic Force Microscopy, complies, Nanodevice Fabrication>
+<Atomic Force Microscopy, connectedTo, Food Packaging Improvement>
+<Atomic Force Microscopy, connectedTo, Nanocoatings>
+<Atomic Force Microscopy, connectedTo, Nanodevice Fabrication>
+<Atomic Force Microscopy, purifies, Drug Delivery Systems>
+<Drug Delivery Systems, connectedTo, Food Packaging Improvement>
+<Food Packaging Improvement, connectedTo, Nanocoatings>
+<Food Packaging Improvement, connectedTo, Nanoelectronics>
+<Lab_on_a_Chip Devices, connectedTo, Drug Delivery Systems>
+<Nanocoatings, cleans, Nanodevice Fabrication>
+<Nanoelectronics, connectedTo, Quantum Dots>
+<Nanomedicine Development, connectedTo, Food Packaging Improvement>
+<Nanomedicine Development, fabricates, Nanosensors>
+<Nanosensors, connectedTo, Atomic Force Microscopy>
+<Nanosensors, connectedTo, Food Packaging Improvement>
+<Quantum Dots, connectedTo, Lab_on_a_Chip Devices>
+<Transmission Electron Microscopy, connectedTo, Nanomedicine Development>
diff --git a/test/diagrams/scanned_medium/diagrams_162.dot b/test/diagrams/scanned_medium/diagrams_162.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ce08a72a3c4feda382f2e259493af586e73f2d41
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_162.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=BT
+	N0 [label="Nanoelectronics" color="#6FE1D5" fillcolor="#C9EFEC" shape=document style=filled]
+	N1 [label="Energy Storage Applications" color="#6FE1D5" fillcolor="#C9EFEC" shape=hexagon style=filled]
+	N2 [label="Nanocoatings" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+	N3 [label="Advanced Materials Research" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N4 [label="Solar Cell Efficiency Enhancement" color="#DCE775" fillcolor="#FCFCE7" shape=diamond style=filled]
+	N5 [label="Atomic Force Microscopy" color="#DCE775" fillcolor="#FCFCE7" shape=action style=filled]
+	N6 [label="Carbon Nanotube Synthesis" color="#DCE775" fillcolor="#FCFCE7" shape=database style=filled]
+	N7 [label="Surface Functionalization" color="#94C0C0" fillcolor="#CADEDE" shape=preparation style=filled]
+	N8 [label="Nanotoxicology" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N9 [label="Photovoltaics" color="#94C0C0" fillcolor="#CADEDE" shape=database style=filled]
+	N10 [label="Spintronics" color="#6FE1D5" fillcolor="#C9EFEC" shape=rect style=filled]
+	S0 [label="" color="#94C0C0" fillcolor="#CADEDE" 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]
+	M1 [label="" color="#6FE1D5" fillcolor="#C9EFEC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Nanoparticle Characterization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Nanoparticle Characterization"
+		nest0_0 [label="Risk Assessment of Nanomaterials" color="#DCE775" fillcolor="#FCFCE7" shape=rectangle style=filled]
+		nest0_1 [label="Environmental Remediation with Nanomaterials" color="#DCE775" fillcolor="#FCFCE7" shape=rectangle style=filled]
+		nest0_2 [label="Graphene Production" color="#DCE775" fillcolor="#FCFCE7" shape=diamond style=filled]
+		nest0_3 [label="Biosensors" color="#6FE1D5" fillcolor="#C9EFEC" shape=database style=filled]
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+	N0 -> N1 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
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+	S0 -> N9 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N7 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	M0 -> N10 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#94C0C0" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=dashed label="detects" dir=forward]
+	M1 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_162.txt b/test/diagrams/scanned_medium/diagrams_162.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0c83486b272a5a34352f197a8933f24d76ab90e3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_162.txt
@@ -0,0 +1,20 @@
+<Advanced Materials Research, commercializes, Solar Cell Efficiency Enhancement>
+<Atomic Force Microscopy, connectedTo, Carbon Nanotube Synthesis>
+<Biosensors, purifies, Nanocoatings>
+<Carbon Nanotube Synthesis, connectedTo, Surface Functionalization>
+<Energy Storage Applications, analyzes, Advanced Materials Research>
+<Energy Storage Applications, connectedTo, Nanocoatings>
+<Energy Storage Applications, connectedTo, Spintronics>
+<Environmental Remediation with Nanomaterials, connectedTo, Graphene Production>
+<Graphene Production, connectedTo, Biosensors>
+<Nanocoatings, connectedTo, Advanced Materials Research>
+<Nanoelectronics, connectedTo, Energy Storage Applications>
+<Nanoelectronics, detects, Advanced Materials Research>
+<Nanotoxicology, connectedTo, Photovoltaics>
+<Photovoltaics, assesses, Spintronics>
+<Risk Assessment of Nanomaterials, connectedTo, Environmental Remediation with Nanomaterials>
+<Solar Cell Efficiency Enhancement, connectedTo, Atomic Force Microscopy>
+<Surface Functionalization, connectedTo, Photovoltaics>
+<Surface Functionalization, connectedTo, Spintronics>
+<Surface Functionalization, controls, Risk Assessment of Nanomaterials>
+<Surface Functionalization, develops, Nanotoxicology>
diff --git a/test/diagrams/scanned_medium/diagrams_163.dot b/test/diagrams/scanned_medium/diagrams_163.dot
new file mode 100644
index 0000000000000000000000000000000000000000..17e5567b85e41a464d0120644f70af00010e8f76
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_163.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=BT
+	N0 [label="Trapped Ion Qubits" color="#FFB2A5" fillcolor="#FFDCD6" shape=inputoutput style=filled]
+	N1 [label="Quantum Annealing" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	N2 [label="Superconducting Qubits" color="#64B5F6" fillcolor="#E3F2FD" shape=inputoutput style=filled]
+	N3 [label="Financial Modeling with Quantum Computing" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+	N4 [label="Post_Quantum Cryptography" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N5 [label="Quantum Supremacy Claims" color="#FF8A65" fillcolor="#FBE9E7" shape=action style=filled]
+	N6 [label="Quantum Bit Design" color="#FF8A65" fillcolor="#FBE9E7" shape=multipledocuments style=filled]
+	N7 [label="Quantum Algorithm Development" color="#FF8A65" fillcolor="#FBE9E7" shape=preparation style=filled]
+	N8 [label="Quantum Processor Fabrication" color="#FF8A65" fillcolor="#FBE9E7" shape=vnode_shape style=filled]
+	N9 [label="Quantum Circuit Design" color="#64B5F6" fillcolor="#E3F2FD" shape=database style=filled]
+	N10 [label="Quantum Cryptography" color="#64B5F6" fillcolor="#E3F2FD" shape=document style=filled]
+	N11 [label="Quantum Hardware Control" color="#FFB2A5" fillcolor="#FFDCD6" shape=inputoutput style=filled]
+	N12 [label="Quantum Computing in Drug Discovery" color="#64B5F6" fillcolor="#E3F2FD" shape=inputoutput style=filled]
+	M0 [label="" color="#64B5F6" fillcolor="#E3F2FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Quantum Sensing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Quantum Sensing"
+		nest0_0 [label="Microwave Control for Qubits" color="#FFB2A5" fillcolor="#FFDCD6" shape=rect style=filled]
+		nest0_1 [label="Quantum Teleportation Research" color="#64B5F6" fillcolor="#E3F2FD" shape=hexagon style=filled]
+		nest0_2 [label="Quantum Software Development Kit" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#64B5F6" penwidth=1.5 style=dashed label="configures" dir=forward]
+	N3 -> N4 [color="#FFB2A5" penwidth=1.5 style=solid label="shares" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="transmits" dir=forward]
+	N5 -> N6 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FF8A65" penwidth=1.5 style=solid label="measures" dir=forward]
+	N8 -> N9 [color="#FFB2A5" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N9 -> N10 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FFB2A5" penwidth=1.5 style=solid label="implements" dir=forward]
+	N10 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N5 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#FFB2A5" penwidth=1.5 style=solid label="controls" dir=forward]
+	N5 -> M0 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N8 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_1 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N4 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_163.txt b/test/diagrams/scanned_medium/diagrams_163.txt
new file mode 100644
index 0000000000000000000000000000000000000000..16085557a516cbd6bae8b08a529f321340233bad
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_163.txt
@@ -0,0 +1,20 @@
+<Financial Modeling with Quantum Computing, shares, Post_Quantum Cryptography>
+<Microwave Control for Qubits, connectedTo, Quantum Teleportation Research>
+<Post_Quantum Cryptography, connectedTo, Quantum Algorithm Development>
+<Post_Quantum Cryptography, transmits, Quantum Supremacy Claims>
+<Quantum Algorithm Development, measures, Quantum Processor Fabrication>
+<Quantum Annealing, connectedTo, Superconducting Qubits>
+<Quantum Bit Design, connectedTo, Quantum Algorithm Development>
+<Quantum Circuit Design, connectedTo, Quantum Cryptography>
+<Quantum Cryptography, connectedTo, Microwave Control for Qubits>
+<Quantum Cryptography, connectedTo, Quantum Hardware Control>
+<Quantum Hardware Control, connectedTo, Quantum Computing in Drug Discovery>
+<Quantum Processor Fabrication, analyzes, Quantum Circuit Design>
+<Quantum Software Development Kit, connectedTo, Quantum Supremacy Claims>
+<Quantum Supremacy Claims, connectedTo, Quantum Bit Design>
+<Quantum Supremacy Claims, connectedTo, Quantum Processor Fabrication>
+<Quantum Supremacy Claims, connectedTo, Quantum Teleportation Research>
+<Quantum Teleportation Research, implements, Quantum Software Development Kit>
+<Superconducting Qubits, configures, Financial Modeling with Quantum Computing>
+<Superconducting Qubits, controls, Quantum Processor Fabrication>
+<Trapped Ion Qubits, connectedTo, Quantum Annealing>
diff --git a/test/diagrams/scanned_medium/diagrams_164.dot b/test/diagrams/scanned_medium/diagrams_164.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4e76cea1905d41883cdb5fd59e4f29c10c257ca3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_164.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=BT
+	N0 [label="Superconducting Qubits" color="#A188D0" fillcolor="#DACBE3" shape=rect style=filled]
+	N1 [label="Quantum Simulation" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N2 [label="Photonic Qubits" color="#A188D0" fillcolor="#DACBE3" shape=predefinedprocess style=filled]
+	N3 [label="Quantum Annealing" color="#A188D0" fillcolor="#DACBE3" shape=preparation style=filled]
+	N4 [label="Trapped Ion Qubits" color="#FFF9AE" fillcolor="#FFFCE6" shape=database style=filled]
+	N5 [label="Quantum Supremacy Claims" color="#80DDEA" fillcolor="#D3F7F9" shape=inputoutput style=filled]
+	N6 [label="Decoherence Mitigation" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N7 [label="Quantum Cryptography" color="#FFF9AE" fillcolor="#FFFCE6" shape=database style=filled]
+	N8 [label="Vacuum Systems for Trapped Ions" color="#A188D0" fillcolor="#DACBE3" shape=vnode_shape style=filled]
+	N9 [label="Quantum Cloud Computing Services" color="#80DDEA" fillcolor="#D3F7F9" shape=action style=filled]
+	N10 [label="Quantum Machine Learning" color="#FFF9AE" fillcolor="#FFFCE6" shape=diamond style=filled]
+	S0 [label="" color="#80DDEA" fillcolor="#D3F7F9" 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="#FFF9AE" fillcolor="#FFFCE6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Quantum Processor Fabrication {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Quantum Processor Fabrication"
+		nest0_0 [label="Quantum Hardware Control" color="#A188D0" fillcolor="#DACBE3" shape=document style=filled]
+		nest0_1 [label="Quantum Computing for AI" color="#A188D0" fillcolor="#DACBE3" shape=inputoutput style=filled]
+		nest0_2 [label="Post_Quantum Cryptography" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#A188D0" penwidth=1.5 style=dashed label="validates" dir=forward]
+	N3 -> N4 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#80DDEA" penwidth=1.5 style=dashed label="manages" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N9 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S1 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#80DDEA" penwidth=1.5 style=dashed label="encrypts" dir=forward]
+	N8 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N10 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_164.txt b/test/diagrams/scanned_medium/diagrams_164.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dcd6b1a5370c412e37f7f516bbda7c3bf02c3f86
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_164.txt
@@ -0,0 +1,20 @@
+<Decoherence Mitigation, connectedTo, Quantum Cryptography>
+<Decoherence Mitigation, connectedTo, Quantum Hardware Control>
+<Photonic Qubits, analyzes, Quantum Machine Learning>
+<Photonic Qubits, connectedTo, Decoherence Mitigation>
+<Photonic Qubits, validates, Quantum Annealing>
+<Post_Quantum Cryptography, connectedTo, Quantum Cloud Computing Services>
+<Quantum Annealing, connectedTo, Trapped Ion Qubits>
+<Quantum Cloud Computing Services, manages, Quantum Machine Learning>
+<Quantum Computing for AI, connectedTo, Post_Quantum Cryptography>
+<Quantum Cryptography, connectedTo, Vacuum Systems for Trapped Ions>
+<Quantum Hardware Control, connectedTo, Quantum Computing for AI>
+<Quantum Simulation, connectedTo, Photonic Qubits>
+<Quantum Simulation, connectedTo, Quantum Cloud Computing Services>
+<Quantum Simulation, connectedTo, Quantum Machine Learning>
+<Quantum Supremacy Claims, connectedTo, Decoherence Mitigation>
+<Superconducting Qubits, connectedTo, Quantum Simulation>
+<Superconducting Qubits, encrypts, Quantum Machine Learning>
+<Trapped Ion Qubits, connectedTo, Quantum Supremacy Claims>
+<Vacuum Systems for Trapped Ions, connectedTo, Quantum Cloud Computing Services>
+<Vacuum Systems for Trapped Ions, connectedTo, Quantum Machine Learning>
diff --git a/test/diagrams/scanned_medium/diagrams_165.dot b/test/diagrams/scanned_medium/diagrams_165.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9b573bbdfdad445ed4ea7fd9514005cd713f230a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_165.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=BT
+	N0 [label="Quantum Sensing" color="#FFA726" fillcolor="#FFF3E0" shape=predefinedprocess style=filled]
+	N1 [label="Laser Cooling for Ions" color="#92C79A" fillcolor="#E8F0EA" shape=database style=filled]
+	N2 [label="Vacuum Systems for Trapped Ions" color="#FFA726" fillcolor="#FFF3E0" shape=inputoutput style=filled]
+	N3 [label="Quantum Algorithm Development" color="#92C79A" fillcolor="#E8F0EA" shape=action style=filled]
+	N4 [label="Quantum Software Development Kit" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N5 [label="Quantum Annealing" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	N6 [label="Microwave Control for Qubits" color="#92C79A" fillcolor="#E8F0EA" shape=rectangle style=filled]
+	N7 [label="Quantum Programming Languages" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+	N8 [label="Post_Quantum Cryptography" color="#FFA726" fillcolor="#FFF3E0" shape=document style=filled]
+	S0 [label="" color="#92C79A" fillcolor="#E8F0EA" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Quantum Communication Protocols {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Quantum Communication Protocols"
+		nest0_0 [label="Quantum Circuit Design" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+		nest0_1 [label="Quantum Computing Education" color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+		nest0_2 [label="Topological Qubits" color="#26A69A" fillcolor="#E0F2F1" shape=document style=filled]
+		nest0_3 [label="Photonic Qubits" color="#92C79A" fillcolor="#E8F0EA" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#92C79A" penwidth=1.5 style=solid label="manages" 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="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed label="entangles" dir=forward]
+	nest0_3 -> N4 [color="#92C79A" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N4 -> S0 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#26A69A" penwidth=1.5 style=dashed label="visualizes" dir=forward]
+	N1 -> M1 [color="#FFA726" penwidth=1.5 style=dashed label="benchmarks" dir=forward]
+	N0 -> M1 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#26A69A" penwidth=1.5 style=solid label="models" dir=forward]
+	M1 -> N5 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_165.txt b/test/diagrams/scanned_medium/diagrams_165.txt
new file mode 100644
index 0000000000000000000000000000000000000000..01528fd4680ab68a66777b833ce2f85aa7369723
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_165.txt
@@ -0,0 +1,18 @@
+<Laser Cooling for Ions, benchmarks, Quantum Annealing>
+<Laser Cooling for Ions, manages, Vacuum Systems for Trapped Ions>
+<Microwave Control for Qubits, connectedTo, Quantum Programming Languages>
+<Photonic Qubits, analyzes, Quantum Software Development Kit>
+<Quantum Algorithm Development, connectedTo, Quantum Software Development Kit>
+<Quantum Annealing, connectedTo, Microwave Control for Qubits>
+<Quantum Circuit Design, connectedTo, Quantum Computing Education>
+<Quantum Computing Education, connectedTo, Topological Qubits>
+<Quantum Programming Languages, connectedTo, Post_Quantum Cryptography>
+<Quantum Programming Languages, entangles, Quantum Circuit Design>
+<Quantum Sensing, connectedTo, Laser Cooling for Ions>
+<Quantum Sensing, connectedTo, Quantum Annealing>
+<Quantum Software Development Kit, connectedTo, Microwave Control for Qubits>
+<Quantum Software Development Kit, connectedTo, Quantum Annealing>
+<Quantum Software Development Kit, visualizes, Quantum Programming Languages>
+<Topological Qubits, connectedTo, Photonic Qubits>
+<Vacuum Systems for Trapped Ions, connectedTo, Quantum Algorithm Development>
+<Vacuum Systems for Trapped Ions, models, Quantum Annealing>
diff --git a/test/diagrams/scanned_medium/diagrams_166.dot b/test/diagrams/scanned_medium/diagrams_166.dot
new file mode 100644
index 0000000000000000000000000000000000000000..dba53fa1b8078f46179027f9343bec2a396bae50
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_166.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=BT
+	N0 [label="User Experience Testing" color="#4FC3F7" fillcolor="#E1F5FE" shape=database style=filled]
+	N1 [label="Tracking System Calibration" color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N2 [label="Virtual Reality Game Development" color="#FFA726" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+	N3 [label="Field of View Optimization" color="#FFA726" fillcolor="#FFF3E0" shape=vnode_shape style=filled]
+	N4 [label="Haptic Feedback Integration" color="#673AB7" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N5 [label="Medical Applications" color="#FFA726" fillcolor="#FFF3E0" shape=action style=filled]
+	N6 [label="Mixed Reality Solutions" color="#4FC3F7" fillcolor="#E1F5FE" shape=hexagon style=filled]
+	N7 [label="Eye Tracking" color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+	N8 [label="Remote Collaboration Tools" color="#FFA726" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	N9 [label="Virtual Showrooms" color="#673AB7" fillcolor="#D1C4E9" shape=action style=filled]
+	N10 [label="AR for Navigation" color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+	N11 [label="Educational Content Development" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+	S0 [label="" color="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Training Simulations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Training Simulations"
+		nest0_0 [label="Headset Development" color="#FFA726" fillcolor="#FFF3E0" shape=vnode_shape style=filled]
+		nest0_1 [label="Facial Recognition in AR or VR" color="#673AB7" fillcolor="#D1C4E9" shape=rect style=filled]
+		nest0_2 [label="Comfort and Ergonomics Design" color="#FFA726" fillcolor="#FFF3E0" shape=action style=filled]
+		nest0_3 [label="Wearable AR Devices" color="#4FC3F7" fillcolor="#E1F5FE" shape=document style=filled]
+	}
+	N0 -> N1 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#4FC3F7" penwidth=1.5 style=solid label="overlays" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#4FC3F7" penwidth=1.5 style=solid label="projects" dir=forward]
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+	N5 -> N6 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
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+	N8 -> N9 [color="#4FC3F7" penwidth=1.5 style=solid label="personalizes" dir=forward]
+	N9 -> N10 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="monitors" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#4FC3F7" penwidth=1.5 style=solid label="streamlines" dir=forward]
+	nest0_3 -> N7 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> N3 [color="#673AB7" penwidth=1.5 style=dashed label="audits" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_166.txt b/test/diagrams/scanned_medium/diagrams_166.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1574c63b400b6a0cc933d9ccd79bcfdf94cd8934
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_166.txt
@@ -0,0 +1,20 @@
+<AR for Navigation, connectedTo, Educational Content Development>
+<Comfort and Ergonomics Design, connectedTo, Wearable AR Devices>
+<Eye Tracking, connectedTo, Remote Collaboration Tools>
+<Facial Recognition in AR or VR, connectedTo, Comfort and Ergonomics Design>
+<Field of View Optimization, projects, Haptic Feedback Integration>
+<Field of View Optimization, streamlines, Headset Development>
+<Haptic Feedback Integration, connectedTo, Medical Applications>
+<Headset Development, monitors, Facial Recognition in AR or VR>
+<Medical Applications, connectedTo, Educational Content Development>
+<Medical Applications, connectedTo, Eye Tracking>
+<Medical Applications, connectedTo, Mixed Reality Solutions>
+<Mixed Reality Solutions, connectedTo, Eye Tracking>
+<Remote Collaboration Tools, personalizes, Virtual Showrooms>
+<Tracking System Calibration, overlays, Virtual Reality Game Development>
+<User Experience Testing, audits, Field of View Optimization>
+<User Experience Testing, connectedTo, Tracking System Calibration>
+<Virtual Reality Game Development, connectedTo, Field of View Optimization>
+<Virtual Showrooms, connectedTo, AR for Navigation>
+<Virtual Showrooms, connectedTo, Headset Development>
+<Wearable AR Devices, connectedTo, Eye Tracking>
diff --git a/test/diagrams/scanned_medium/diagrams_167.dot b/test/diagrams/scanned_medium/diagrams_167.dot
new file mode 100644
index 0000000000000000000000000000000000000000..04568b893cf86c164f63bf1b27d70b0f7ea3b2b8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_167.dot
@@ -0,0 +1,34 @@
+digraph {
+	rankdir=BT
+	N0 [label="Software Development Kit Integration" color="#4FC3F7" fillcolor="#E1F5FE" shape=vnode_shape style=filled]
+	N1 [label="Performance Optimization" color="#81C784" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N2 [label="Immersive Storytelling" color="#795548" fillcolor="#D7CCC8" shape=predefinedprocess style=filled]
+	N3 [label="User Experience Testing" color="#81C784" fillcolor="#F1F8E9" shape=database style=filled]
+	N4 [label="Tracking System Calibration" color="#81C784" fillcolor="#F1F8E9" shape=action style=filled]
+	N5 [label="Virtual Reality Game Development" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N6 [label="Virtual Tourism Experiences" color="#81C784" fillcolor="#F1F8E9" shape=inputoutput style=filled]
+	N7 [label="Content Creation for AR or VR" color="#81C784" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+	M0 [label="" color="#81C784" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Facial Recognition in AR or VR {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Facial Recognition in AR or VR"
+		nest0_0 [label="Latency Reduction" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+		nest0_1 [label="3D Model Creation" color="#4FC3F7" fillcolor="#E1F5FE" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#795548" penwidth=1.5 style=solid label="personalizes" 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="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#4FC3F7" penwidth=1.5 style=dashed label="captures" dir=forward]
+	N4 -> nest0_0 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N4 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N1 [color="#4FC3F7" penwidth=1.5 style=dashed label="visualizes" dir=forward]
+	N3 -> N6 [color="#000000" penwidth=1.5 style=dashed label="controls" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_167.txt b/test/diagrams/scanned_medium/diagrams_167.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7fb8735f3fcc474d420258f8ffd7355ca8543134
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_167.txt
@@ -0,0 +1,14 @@
+<3D Model Creation, connectedTo, Tracking System Calibration>
+<Immersive Storytelling, connectedTo, User Experience Testing>
+<Immersive Storytelling, visualizes, Performance Optimization>
+<Latency Reduction, captures, 3D Model Creation>
+<Performance Optimization, personalizes, Immersive Storytelling>
+<Software Development Kit Integration, connectedTo, Performance Optimization>
+<Software Development Kit Integration, connectedTo, Virtual Reality Game Development>
+<Tracking System Calibration, connectedTo, Latency Reduction>
+<Tracking System Calibration, connectedTo, Virtual Reality Game Development>
+<User Experience Testing, connectedTo, Tracking System Calibration>
+<User Experience Testing, connectedTo, Virtual Reality Game Development>
+<User Experience Testing, controls, Virtual Tourism Experiences>
+<Virtual Reality Game Development, connectedTo, Virtual Tourism Experiences>
+<Virtual Tourism Experiences, connectedTo, Content Creation for AR or VR>
diff --git a/test/diagrams/scanned_medium/diagrams_168.dot b/test/diagrams/scanned_medium/diagrams_168.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1415684ff156ddfa6650f1a942d0a6181d56f655
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_168.dot
@@ -0,0 +1,34 @@
+digraph {
+	rankdir=RL
+	N0 [label="AR for Navigation" color="#7986CB" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N1 [label="User Experience Testing" color="#4DB6AC" fillcolor="#E0F2F1" shape=box style=filled]
+	N2 [label="Remote Collaboration Tools" color="#00BCD4" fillcolor="#B2EBF2" shape=diamond style=filled]
+	N3 [label="Latency Reduction" color="#00BCD4" fillcolor="#B2EBF2" shape=diamond style=filled]
+	N4 [label="Ethical Considerations in AR or VR" color="#4DB6AC" fillcolor="#E0F2F1" shape=box style=filled]
+	N5 [label="Virtual Tourism Experiences" color="#4DB6AC" fillcolor="#E0F2F1" shape=diamond style=filled]
+	S0 [label="" color="#4DB6AC" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Headset Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Headset Development"
+		nest0_0 [label="Retail Experience Enhancement" color="#00BCD4" fillcolor="#B2EBF2" shape=box style=filled]
+		nest0_1 [label="Performance Optimization" color="#7986CB" fillcolor="#E8EAF6" shape=preparation style=filled]
+		nest0_2 [label="Facial Recognition in AR or VR" color="#4DB6AC" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+		nest0_3 [label="Eye Tracking" color="#00BCD4" fillcolor="#B2EBF2" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#00BCD4" penwidth=1.5 style=dashed label="trains" 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=solid label="augments" dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#00BCD4" penwidth=1.5 style=solid label="streamlines" dir=forward]
+	nest0_3 -> N3 [color="#4DB6AC" penwidth=1.5 style=dashed label="enhances" dir=forward]
+	N2 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#000000" penwidth=1.5 style=solid label="tracks" dir=forward]
+	nest0_1 -> N5 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N0 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_168.txt b/test/diagrams/scanned_medium/diagrams_168.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e5ad5f03b4fb280b4dfec80c28daca6120f3c1c3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_168.txt
@@ -0,0 +1,14 @@
+<AR for Navigation, connectedTo, Facial Recognition in AR or VR>
+<AR for Navigation, connectedTo, User Experience Testing>
+<Ethical Considerations in AR or VR, trains, Virtual Tourism Experiences>
+<Eye Tracking, enhances, Latency Reduction>
+<Facial Recognition in AR or VR, connectedTo, Eye Tracking>
+<Latency Reduction, connectedTo, Ethical Considerations in AR or VR>
+<Performance Optimization, augments, Facial Recognition in AR or VR>
+<Performance Optimization, connectedTo, Virtual Tourism Experiences>
+<Remote Collaboration Tools, connectedTo, Latency Reduction>
+<Remote Collaboration Tools, connectedTo, Virtual Tourism Experiences>
+<Remote Collaboration Tools, tracks, Ethical Considerations in AR or VR>
+<Retail Experience Enhancement, connectedTo, Performance Optimization>
+<User Experience Testing, connectedTo, Remote Collaboration Tools>
+<User Experience Testing, streamlines, Retail Experience Enhancement>
diff --git a/test/diagrams/scanned_medium/diagrams_169.dot b/test/diagrams/scanned_medium/diagrams_169.dot
new file mode 100644
index 0000000000000000000000000000000000000000..783bc6fd993eca1b0c037d1057d0030e306e9942
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_169.dot
@@ -0,0 +1,49 @@
+digraph {
+	rankdir=BT
+	N0 [label="Mobile Game Development" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N1 [label="Storytelling" color="#CFCFCF" fillcolor="#F6F6F6" shape=predefinedprocess style=filled]
+	N2 [label="Quality Assurance Testing" color="#CFCFCF" fillcolor="#F6F6F6" shape=vnode_shape style=filled]
+	N3 [label="User Interface Design" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N4 [label="Motion Capture" color="#CFCFCF" fillcolor="#F6F6F6" shape=predefinedprocess style=filled]
+	N5 [label="In_Game Economy Design" color="#F06292" fillcolor="#FCE4EC" shape=box style=filled]
+	N6 [label="Multiplayer Game Development" color="#CFCFCF" fillcolor="#F6F6F6" shape=rectangle style=filled]
+	N7 [label="Physics Simulation" color="#03A9F4" fillcolor="#B3E5FC" shape=multipledocuments style=filled]
+	N8 [label="Marketing and Promotion" color="#F06292" fillcolor="#FCE4EC" shape=predefinedprocess style=filled]
+	N9 [label="Game Balancing" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+	N10 [label="Esports Event Organization" color="#CFCFCF" fillcolor="#F6F6F6" shape=document style=filled]
+	N11 [label="Community Management" color="#03A9F4" fillcolor="#B3E5FC" shape=parallelogram style=filled]
+	S0 [label="" color="#F06292" fillcolor="#FCE4EC" 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_Player Feedback Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Player Feedback Integration"
+		nest0_0 [label="Bug Fixing" color="#CFCFCF" fillcolor="#F6F6F6" shape=preparation style=filled]
+		nest0_1 [label="Augmented Reality Gaming" color="#CFCFCF" fillcolor="#F6F6F6" shape=multipledocuments style=filled]
+		nest0_2 [label="Localization" color="#CFCFCF" fillcolor="#F6F6F6" shape=database style=filled]
+		nest0_3 [label="Voice Acting" color="#F06292" fillcolor="#FCE4EC" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#03A9F4" 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="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#CFCFCF" penwidth=1.5 style=dashed label="markets" dir=forward]
+	N6 -> N7 [color="#03A9F4" penwidth=1.5 style=solid label="interacts" dir=forward]
+	N7 -> N8 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#F06292" penwidth=1.5 style=dashed label="coaches" dir=forward]
+	N9 -> N10 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#CFCFCF" 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="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed label="publishes" dir=forward]
+	nest0_3 -> N2 [color="#03A9F4" penwidth=1.5 style=solid label="engages" dir=forward]
+	N2 -> S0 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_169.txt b/test/diagrams/scanned_medium/diagrams_169.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7d2b27c2efeb304ecbb937909633651a2d5ff4c8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_169.txt
@@ -0,0 +1,21 @@
+<Augmented Reality Gaming, connectedTo, Localization>
+<Bug Fixing, connectedTo, Augmented Reality Gaming>
+<Esports Event Organization, connectedTo, Community Management>
+<Game Balancing, connectedTo, Esports Event Organization>
+<In_Game Economy Design, markets, Multiplayer Game Development>
+<Localization, connectedTo, Voice Acting>
+<Marketing and Promotion, coaches, Game Balancing>
+<Mobile Game Development, connectedTo, Storytelling>
+<Motion Capture, connectedTo, In_Game Economy Design>
+<Multiplayer Game Development, connectedTo, Game Balancing>
+<Multiplayer Game Development, interacts, Physics Simulation>
+<Physics Simulation, connectedTo, Marketing and Promotion>
+<Quality Assurance Testing, connectedTo, Community Management>
+<Quality Assurance Testing, connectedTo, Multiplayer Game Development>
+<Quality Assurance Testing, connectedTo, User Interface Design>
+<Storytelling, connectedTo, Game Balancing>
+<Storytelling, connectedTo, Quality Assurance Testing>
+<User Interface Design, connectedTo, Game Balancing>
+<User Interface Design, connectedTo, Motion Capture>
+<User Interface Design, publishes, Bug Fixing>
+<Voice Acting, engages, Quality Assurance Testing>
diff --git a/test/diagrams/scanned_medium/diagrams_17.dot b/test/diagrams/scanned_medium/diagrams_17.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f00dbb9154976471e2078e4d7b610c119bdf3a34
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_17.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=RL
+	N0 [label="Public Health Initiative" color="#CB9BE1" fillcolor="#F2E6F5" shape=diamond style=filled]
+	N1 [label="Grant Distribution" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+	N2 [label="Social Security Administration" color="#CB9BE1" fillcolor="#F2E6F5" shape=rectangle style=filled]
+	N3 [label="Tax Filing" color="#CB9BE1" fillcolor="#F2E6F5" shape=predefinedprocess style=filled]
+	N4 [label="Legal Advisory" color="#FFE470" fillcolor="#FFFAE0" shape=parallelogram style=filled]
+	N5 [label="National Defense" color="#FFE470" fillcolor="#FFFAE0" shape=inputoutput style=filled]
+	N6 [label="Urban Planning" color="#CB9BE1" fillcolor="#F2E6F5" shape=database style=filled]
+	N7 [label="Citizen Feedback" color="#8C9EFF" fillcolor="#D3D7EB" shape=hexagon style=filled]
+	N8 [label="Census Collection" color="#8C9EFF" fillcolor="#D3D7EB" shape=inputoutput style=filled]
+	N9 [label="Code Enforcement" color="#8C9EFF" fillcolor="#D3D7EB" shape=multipledocuments style=filled]
+	N0 -> N1 [color="#CB9BE1" penwidth=1.5 style=dashed label="enacts" 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="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="plans" dir=forward]
+	N6 -> N7 [color="#CB9BE1" penwidth=1.5 style=dashed label="taxes" dir=forward]
+	N7 -> N8 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N0 -> N8 [color="#FFE470" penwidth=1.5 style=solid label="collects" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_17.txt b/test/diagrams/scanned_medium/diagrams_17.txt
new file mode 100644
index 0000000000000000000000000000000000000000..94ee46c8ad7110fae22fa1e3aaa51f86ebdc9498
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_17.txt
@@ -0,0 +1,10 @@
+<Census Collection, connectedTo, Code Enforcement>
+<Citizen Feedback, connectedTo, Census Collection>
+<Grant Distribution, connectedTo, Social Security Administration>
+<Legal Advisory, communicates, National Defense>
+<National Defense, plans, Urban Planning>
+<Public Health Initiative, collects, Census Collection>
+<Public Health Initiative, enacts, Grant Distribution>
+<Social Security Administration, connectedTo, Tax Filing>
+<Tax Filing, connectedTo, Legal Advisory>
+<Urban Planning, taxes, Citizen Feedback>
diff --git a/test/diagrams/scanned_medium/diagrams_170.dot b/test/diagrams/scanned_medium/diagrams_170.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3c889b24238c6e2b1e37e571c1c924936be5f251
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_170.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=LR
+	N0 [label="Character Design" color="#607D8B" fillcolor="#CFD8DC" shape=rect style=filled]
+	N1 [label="Level Design" color="#73C6BC" fillcolor="#D0EFEE" shape=predefinedprocess style=filled]
+	N2 [label="Virtual Reality Gaming" color="#42A5F5" fillcolor="#F1F8FF" shape=diamond style=filled]
+	N3 [label="Programming" color="#607D8B" fillcolor="#CFD8DC" shape=vnode_shape style=filled]
+	N4 [label="Game Design" color="#73C6BC" fillcolor="#D0EFEE" shape=inputoutput style=filled]
+	N5 [label="Engine Development" color="#73C6BC" fillcolor="#D0EFEE" shape=rect style=filled]
+	S0 [label="" color="#73C6BC" fillcolor="#D0EFEE" 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]
+	M1 [label="" color="#42A5F5" fillcolor="#F1F8FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Sound Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Sound Design"
+		nest0_0 [label="Player Progression Systems" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+		nest0_1 [label="Localization" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+		nest0_2 [label="Community Management" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+		nest0_3 [label="User Experience Design" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#73C6BC" penwidth=1.5 style=solid label="publishes" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="sounds" dir=forward]
+	N4 -> N5 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N2 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N3 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#73C6BC" penwidth=1.5 style=dashed label="broadcasts" dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid label="distributes" dir=forward]
+	M0 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#73C6BC" penwidth=1.5 style=solid label="renders" dir=forward]
+	M1 -> N4 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_170.txt b/test/diagrams/scanned_medium/diagrams_170.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dc4c1f1eb9fb5e38410beb0b1a76af53c2c9585a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_170.txt
@@ -0,0 +1,16 @@
+<Character Design, connectedTo, Game Design>
+<Character Design, connectedTo, Level Design>
+<Character Design, connectedTo, Programming>
+<Character Design, distributes, Game Design>
+<Community Management, connectedTo, User Experience Design>
+<Game Design, connectedTo, Engine Development>
+<Level Design, broadcasts, Game Design>
+<Level Design, connectedTo, Virtual Reality Gaming>
+<Level Design, renders, Game Design>
+<Localization, connectedTo, Community Management>
+<Player Progression Systems, connectedTo, Localization>
+<Programming, connectedTo, Player Progression Systems>
+<Programming, sounds, Game Design>
+<User Experience Design, connectedTo, Virtual Reality Gaming>
+<Virtual Reality Gaming, connectedTo, Game Design>
+<Virtual Reality Gaming, publishes, Programming>
diff --git a/test/diagrams/scanned_medium/diagrams_171.dot b/test/diagrams/scanned_medium/diagrams_171.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1e6d08716dce3224b7ce614564733b74f7b1575f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_171.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=BT
+	N0 [label="Monetization Strategy" color="#3F51B5" fillcolor="#C5CAE9" shape=inputoutput style=filled]
+	N1 [label="Player Feedback Integration" color="#3F51B5" fillcolor="#C5CAE9" shape=predefinedprocess style=filled]
+	N2 [label="Localization" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	N3 [label="Quality Assurance Testing" color="#FFF176" fillcolor="#FFFDE7" shape=document style=filled]
+	N4 [label="Player Progression Systems" color="#F06292" fillcolor="#FCE4EC" shape=rect style=filled]
+	N5 [label="Level Design" color="#F06292" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	N6 [label="User Experience Design" color="#F06292" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N7 [label="User Interface Design" color="#3F51B5" fillcolor="#C5CAE9" shape=parallelogram style=filled]
+	N8 [label="Motion Capture" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	S0 [label="" color="#FFF176" fillcolor="#FFFDE7" 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]
+	M0 [label="" color="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Network Code Optimization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Network Code Optimization"
+		nest0_0 [label="Asset Creation" color="#F06292" fillcolor="#FCE4EC" shape=rect style=filled]
+		nest0_1 [label="Storytelling" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+		nest0_2 [label="Console Game Development" color="#F06292" fillcolor="#FCE4EC" shape=multipledocuments style=filled]
+		nest0_3 [label="Voice Acting" color="#FFF176" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#3F51B5" penwidth=1.5 style=solid label="narrates" 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="#F06292" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#F06292" penwidth=1.5 style=dashed label="animates" dir=forward]
+	nest0_1 -> nest0_2 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#F06292" penwidth=1.5 style=dashed label="plays" dir=forward]
+	N7 -> nest0_0 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N8 [color="#000000" penwidth=1.5 style=dashed label="innovates" dir=forward]
+	N4 -> S0 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N0 -> S1 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	S1 -> N3 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#F06292" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	M0 -> N5 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_171.txt b/test/diagrams/scanned_medium/diagrams_171.txt
new file mode 100644
index 0000000000000000000000000000000000000000..36d1b1e9ddf96bb7d5b5efb2a1be808fecc77272
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_171.txt
@@ -0,0 +1,19 @@
+<Asset Creation, animates, Storytelling>
+<Console Game Development, plays, Voice Acting>
+<Level Design, connectedTo, User Experience Design>
+<Localization, analyzes, Level Design>
+<Localization, connectedTo, Quality Assurance Testing>
+<Monetization Strategy, connectedTo, Player Feedback Integration>
+<Monetization Strategy, connectedTo, Quality Assurance Testing>
+<Monetization Strategy, connectedTo, User Interface Design>
+<Player Feedback Integration, connectedTo, Level Design>
+<Player Feedback Integration, connectedTo, Localization>
+<Player Progression Systems, connectedTo, User Experience Design>
+<Player Progression Systems, connectedTo, User Interface Design>
+<Player Progression Systems, narrates, Level Design>
+<Quality Assurance Testing, connectedTo, Player Progression Systems>
+<Storytelling, connectedTo, Console Game Development>
+<User Experience Design, connectedTo, User Interface Design>
+<User Interface Design, connectedTo, Asset Creation>
+<User Interface Design, connectedTo, Motion Capture>
+<Voice Acting, innovates, Motion Capture>
diff --git a/test/diagrams/scanned_medium/diagrams_172.dot b/test/diagrams/scanned_medium/diagrams_172.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8d3d4dad5197439e04cd06f0677d98502c676f20
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_172.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=LR
+	N0 [label="Music Festival Organization" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+	N1 [label="Ticketing" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	N2 [label="Record Label Operations" color="#FFEB3B" fillcolor="#FFF9C4" shape=database style=filled]
+	N3 [label="Live Sound Engineering" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+	N4 [label="Concert Promotion" color="#FFEB3B" fillcolor="#FFF9C4" shape=action style=filled]
+	N5 [label="Sampling" color="#E91E63" fillcolor="#F8BBD0" shape=document style=filled]
+	N6 [label="Artist Management" color="#E91E63" fillcolor="#F8BBD0" shape=multipledocuments style=filled]
+	N7 [label="Digital Audio Workstation Operation" color="#FFEB3B" fillcolor="#FFF9C4" shape=diamond style=filled]
+	N8 [label="Arrangement" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	S0 [label="" color="#E91E63" fillcolor="#F8BBD0" 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="#FFEB3B" fillcolor="#FFF9C4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Music Licensing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Music Licensing"
+		nest0_0 [label="Music Production" color="#E91E63" fillcolor="#F8BBD0" shape=rect style=filled]
+		nest0_1 [label="Beat Making" color="#E91E63" fillcolor="#F8BBD0" shape=hexagon style=filled]
+		nest0_2 [label="Instrumental Performance" color="#E91E63" fillcolor="#F8BBD0" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFEB3B" penwidth=1.5 style=dashed label="protects" dir=forward]
+	N2 -> N3 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#AABEC6" penwidth=1.5 style=solid label="synthesizes" dir=forward]
+	N4 -> N5 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" 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="#000000" penwidth=1.5 style=dashed label="performs" dir=forward]
+	N2 -> nest0_0 [color="#000000" penwidth=1.5 style=solid label="scores" dir=forward]
+	nest0_2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=dashed label="trains" dir=forward]
+	S0 -> N6 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N3 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N8 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_172.txt b/test/diagrams/scanned_medium/diagrams_172.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4a28673c5803d9a89485eaa077831ddbeea82cd0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_172.txt
@@ -0,0 +1,18 @@
+<Artist Management, connectedTo, Digital Audio Workstation Operation>
+<Beat Making, performs, Instrumental Performance>
+<Concert Promotion, connectedTo, Artist Management>
+<Concert Promotion, connectedTo, Sampling>
+<Concert Promotion, trains, Arrangement>
+<Digital Audio Workstation Operation, connectedTo, Arrangement>
+<Instrumental Performance, connectedTo, Live Sound Engineering>
+<Live Sound Engineering, connectedTo, Arrangement>
+<Live Sound Engineering, synthesizes, Concert Promotion>
+<Music Festival Organization, connectedTo, Arrangement>
+<Music Festival Organization, connectedTo, Live Sound Engineering>
+<Music Festival Organization, connectedTo, Ticketing>
+<Music Production, connectedTo, Beat Making>
+<Record Label Operations, connectedTo, Live Sound Engineering>
+<Record Label Operations, scores, Music Production>
+<Sampling, connectedTo, Artist Management>
+<Ticketing, connectedTo, Live Sound Engineering>
+<Ticketing, protects, Record Label Operations>
diff --git a/test/diagrams/scanned_medium/diagrams_173.dot b/test/diagrams/scanned_medium/diagrams_173.dot
new file mode 100644
index 0000000000000000000000000000000000000000..037b4f3f58ddb4c46233f56a65fa2b18e3e64118
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_173.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=LR
+	N0 [label="Concert Promotion" color="#00BCD4" fillcolor="#B2EBF2" shape=inputoutput style=filled]
+	N1 [label="Music Education" color="#00BCD4" fillcolor="#B2EBF2" shape=rect style=filled]
+	N2 [label="Music Production" color="#AED581" fillcolor="#F0F4C3" shape=parallelogram style=filled]
+	N3 [label="Performance" color="#AED581" fillcolor="#F0F4C3" shape=multipledocuments style=filled]
+	N4 [label="Arrangement" color="#5C6BC0" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N5 [label="Music Distribution" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+	N6 [label="Music Therapy" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	N7 [label="Instrumental Performance" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N8 [label="Artist Management" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	N9 [label="Sound Design for Media" color="#00BCD4" fillcolor="#B2EBF2" shape=rect style=filled]
+	N10 [label="Lyric Writing" color="#00BCD4" fillcolor="#B2EBF2" shape=preparation style=filled]
+	N11 [label="Crowdfunding for Music Projects" color="#AED581" fillcolor="#F0F4C3" shape=multipledocuments style=filled]
+	S0 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Mastering {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mastering"
+		nest0_0 [label="Music for Film or TV or Games" color="#00BCD4" fillcolor="#B2EBF2" shape=parallelogram style=filled]
+		nest0_1 [label="Vocal Performance" color="#5C6BC0" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+		nest0_2 [label="Songwriting" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+		nest0_3 [label="Synthesizer Programming" color="#00BCD4" fillcolor="#B2EBF2" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#00BCD4" penwidth=1.5 style=solid label="markets" dir=forward]
+	N4 -> N5 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#5C6BC0" 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="#5C6BC0" penwidth=1.5 style=dashed label="educates" dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#5C6BC0" penwidth=1.5 style=dashed label="performs" dir=forward]
+	nest0_3 -> N11 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#5C6BC0" penwidth=1.5 style=solid label="teaches" dir=forward]
+	S0 -> N10 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N9 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=dashed label="syncs" dir=forward]
+	M0 -> N11 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_173.txt b/test/diagrams/scanned_medium/diagrams_173.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8e9c4d90a575ce6654f61761140d2bc847bfca2f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_173.txt
@@ -0,0 +1,26 @@
+<Arrangement, connectedTo, Lyric Writing>
+<Arrangement, connectedTo, Music Distribution>
+<Arrangement, connectedTo, Sound Design for Media>
+<Arrangement, syncs, Crowdfunding for Music Projects>
+<Arrangement, teaches, Artist Management>
+<Artist Management, connectedTo, Sound Design for Media>
+<Concert Promotion, connectedTo, Music Education>
+<Instrumental Performance, connectedTo, Artist Management>
+<Lyric Writing, connectedTo, Crowdfunding for Music Projects>
+<Music Distribution, connectedTo, Music Therapy>
+<Music Education, connectedTo, Music Production>
+<Music Production, connectedTo, Performance>
+<Music Therapy, connectedTo, Instrumental Performance>
+<Music for Film or TV or Games, connectedTo, Vocal Performance>
+<Music for Film or TV or Games, partOf, Music for Film or TV or Games>
+<Performance, connectedTo, Crowdfunding for Music Projects>
+<Performance, markets, Arrangement>
+<Songwriting, connectedTo, Synthesizer Programming>
+<Songwriting, partOf, Songwriting>
+<Sound Design for Media, connectedTo, Crowdfunding for Music Projects>
+<Sound Design for Media, connectedTo, Lyric Writing>
+<Sound Design for Media, performs, Music for Film or TV or Games>
+<Synthesizer Programming, connectedTo, Crowdfunding for Music Projects>
+<Synthesizer Programming, partOf, Synthesizer Programming>
+<Vocal Performance, educates, Songwriting>
+<Vocal Performance, partOf, Vocal Performance>
diff --git a/test/diagrams/scanned_medium/diagrams_174.dot b/test/diagrams/scanned_medium/diagrams_174.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b330826f03fba36bab6f554fbcb19974cff3a22a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_174.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=RL
+	N0 [label="Music Licensing" color="#03A9F4" fillcolor="#B3E5FC" shape=preparation style=filled]
+	N1 [label="Ticketing" color="#FFEB3B" fillcolor="#FFF9C4" shape=database style=filled]
+	N2 [label="Songwriting" color="#FFEB3B" fillcolor="#FFF9C4" shape=parallelogram style=filled]
+	N3 [label="Composition" color="#03A9F4" fillcolor="#B3E5FC" shape=preparation style=filled]
+	N4 [label="Record Label Operations" color="#7986CB" fillcolor="#E8EAF6" shape=document style=filled]
+	N5 [label="Audio Engineering" color="#03A9F4" fillcolor="#B3E5FC" shape=diamond style=filled]
+	N6 [label="Lyric Writing" color="#7986CB" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N7 [label="Crowdfunding for Music Projects" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N8 [label="Artist Management" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N9 [label="Live Sound Engineering" color="#7986CB" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	S0 [label="" color="#7986CB" fillcolor="#E8EAF6" 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]
+	subgraph cluster_Concert Promotion {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Concert Promotion"
+		nest0_0 [label="Performance" color="#03A9F4" fillcolor="#B3E5FC" shape=parallelogram style=filled]
+		nest0_1 [label="Music Publishing" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+		nest0_2 [label="Copyright Management" color="#7986CB" fillcolor="#E8EAF6" shape=document style=filled]
+		nest0_3 [label="Music Distribution" color="#FFEB3B" fillcolor="#FFF9C4" 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="#000000" penwidth=1.5 style=dashed label="plays" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="audits" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="writes" dir=forward]
+	nest0_0 -> nest0_1 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_0 [color="#03A9F4" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	nest0_3 -> N4 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#7986CB" 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=solid label="invests" dir=forward]
+	S1 -> N9 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#7986CB" penwidth=1.5 style=dashed label="educates" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_175.dot b/test/diagrams/scanned_medium/diagrams_175.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3f3ac85828d60d695f0cb9e18ba95f513ab7378b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_175.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=RL
+	N0 [label="Color Grading" color="#FFDA4E" fillcolor="#FFE88D" shape=multipledocuments style=filled]
+	N1 [label="Insurance Management" color="#AF56A6" fillcolor="#DDCEDD" shape=predefinedprocess style=filled]
+	N2 [label="Cinematography" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N3 [label="Sound Recording" color="#FFDA4E" fillcolor="#FFE88D" shape=document style=filled]
+	N4 [label="Lighting Design" color="#AF56A6" fillcolor="#DDCEDD" shape=document style=filled]
+	N5 [label="Directing" color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+	N6 [label="Location Scouting" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	N7 [label="Talent Negotiation" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	N8 [label="Storyboarding" color="#9C27B0" fillcolor="#E1BEE7" shape=rectangle style=filled]
+	N9 [label="Distribution Strategy" color="#9C27B0" fillcolor="#E1BEE7" shape=inputoutput style=filled]
+	N10 [label="Editing" color="#FFDA4E" fillcolor="#FFE88D" shape=preparation style=filled]
+	S0 [label="" color="#FFDA4E" fillcolor="#FFE88D" 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]
+	subgraph cluster_Script Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Script Development"
+		nest0_0 [label="Screenwriting Workshops" color="#9C27B0" fillcolor="#E1BEE7" shape=document style=filled]
+		nest0_1 [label="Pre_production Planning" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#AF56A6" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N3 -> N4 [color="#FFDA4E" penwidth=1.5 style=dashed label="coordinates" 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="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_0 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N9 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=solid label="builds" dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#AF56A6" penwidth=1.5 style=dashed label="directs" dir=forward]
+	N3 -> M0 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#9C27B0" penwidth=1.5 style=dashed label="protects" dir=forward]
+	N0 -> M1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_175.txt b/test/diagrams/scanned_medium/diagrams_175.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4525da3fda0be4e00d35031b28aed73742fe7e44
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_175.txt
@@ -0,0 +1,19 @@
+<Cinematography, secures, Sound Recording>
+<Color Grading, connectedTo, Insurance Management>
+<Color Grading, connectedTo, Sound Recording>
+<Color Grading, directs, Directing>
+<Directing, builds, Distribution Strategy>
+<Directing, connectedTo, Editing>
+<Directing, connectedTo, Location Scouting>
+<Distribution Strategy, connectedTo, Editing>
+<Insurance Management, connectedTo, Cinematography>
+<Insurance Management, protects, Sound Recording>
+<Lighting Design, connectedTo, Directing>
+<Location Scouting, connectedTo, Talent Negotiation>
+<Pre_production Planning, connectedTo, Distribution Strategy>
+<Screenwriting Workshops, connectedTo, Pre_production Planning>
+<Sound Recording, connectedTo, Directing>
+<Sound Recording, coordinates, Lighting Design>
+<Storyboarding, connectedTo, Distribution Strategy>
+<Talent Negotiation, connectedTo, Screenwriting Workshops>
+<Talent Negotiation, connectedTo, Storyboarding>
diff --git a/test/diagrams/scanned_medium/diagrams_176.dot b/test/diagrams/scanned_medium/diagrams_176.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5bea69dcfbab5bb08de976b75df205453933e4f0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_176.dot
@@ -0,0 +1,56 @@
+digraph {
+	rankdir=TB
+	N0 [label="Editing" color="#03A9F4" fillcolor="#B3E5FC" shape=document style=filled]
+	N1 [label="Legal Compliance" color="#3F51B5" fillcolor="#C5CAE9" shape=inputoutput style=filled]
+	N2 [label="Makeup and Hair Design" color="#607D8B" fillcolor="#CFD8DC" shape=diamond style=filled]
+	N3 [label="Tax Incentive Management" color="#3F51B5" fillcolor="#C5CAE9" shape=database style=filled]
+	N4 [label="Marketing and Publicity" color="#03A9F4" fillcolor="#B3E5FC" shape=diamond style=filled]
+	N5 [label="Production Accounting" color="#03A9F4" fillcolor="#B3E5FC" shape=inputoutput style=filled]
+	N6 [label="Pre_production Planning" color="#03A9F4" fillcolor="#B3E5FC" shape=rectangle style=filled]
+	N7 [label="Art Direction" color="#3F51B5" fillcolor="#C5CAE9" shape=parallelogram style=filled]
+	N8 [label="Stunt Coordination" color="#03A9F4" fillcolor="#B3E5FC" shape=document style=filled]
+	N9 [label="Cinematography" color="#3F51B5" fillcolor="#C5CAE9" shape=document style=filled]
+	N10 [label="Casting" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	N11 [label="Distribution Strategy" color="#607D8B" fillcolor="#CFD8DC" shape=action style=filled]
+	N12 [label="Audience Research" color="#03A9F4" fillcolor="#B3E5FC" shape=document style=filled]
+	S0 [label="" color="#3F51B5" fillcolor="#C5CAE9" 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="#03A9F4" fillcolor="#B3E5FC" 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_Virtual Production Techniques {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Virtual Production Techniques"
+		nest0_0 [label="Film Scoring" color="#3F51B5" fillcolor="#C5CAE9" shape=rectangle style=filled]
+		nest0_1 [label="Post_production Audio" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+		nest0_2 [label="Prop Management" color="#607D8B" fillcolor="#CFD8DC" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#607D8B" penwidth=1.5 style=solid label="captures" dir=forward]
+	N1 -> N2 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#607D8B" penwidth=1.5 style=solid label="casts" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#607D8B" penwidth=1.5 style=dashed label="films" dir=forward]
+	N6 -> N7 [color="#3F51B5" penwidth=1.5 style=dashed label="designs" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#607D8B" penwidth=1.5 style=dashed 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 label="publishes" dir=forward]
+	nest0_0 -> nest0_1 [color="#03A9F4" penwidth=1.5 style=dashed label="lights" dir=forward]
+	nest0_1 -> nest0_2 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N7 [color="#000000" penwidth=1.5 style=solid label="finances" dir=forward]
+	N5 -> S0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=solid label="schedules" dir=forward]
+	S0 -> N9 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S1 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed label="records" dir=forward]
+	N1 -> M0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	M0 -> N8 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#3F51B5" penwidth=1.5 style=solid 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_medium/diagrams_176.txt b/test/diagrams/scanned_medium/diagrams_176.txt
new file mode 100644
index 0000000000000000000000000000000000000000..296b6b4ad07c138ba77c54b1cea572db147af301
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_176.txt
@@ -0,0 +1,24 @@
+<Art Direction, connectedTo, Casting>
+<Art Direction, connectedTo, Stunt Coordination>
+<Casting, connectedTo, Distribution Strategy>
+<Cinematography, connectedTo, Casting>
+<Distribution Strategy, publishes, Audience Research>
+<Editing, captures, Legal Compliance>
+<Film Scoring, lights, Post_production Audio>
+<Legal Compliance, connectedTo, Cinematography>
+<Legal Compliance, connectedTo, Makeup and Hair Design>
+<Legal Compliance, connectedTo, Stunt Coordination>
+<Legal Compliance, connectedTo, Tax Incentive Management>
+<Makeup and Hair Design, casts, Tax Incentive Management>
+<Makeup and Hair Design, records, Stunt Coordination>
+<Marketing and Publicity, connectedTo, Production Accounting>
+<Post_production Audio, connectedTo, Prop Management>
+<Pre_production Planning, connectedTo, Casting>
+<Pre_production Planning, designs, Art Direction>
+<Production Accounting, connectedTo, Cinematography>
+<Production Accounting, films, Pre_production Planning>
+<Production Accounting, schedules, Distribution Strategy>
+<Prop Management, finances, Art Direction>
+<Stunt Coordination, connectedTo, Cinematography>
+<Tax Incentive Management, connectedTo, Film Scoring>
+<Tax Incentive Management, connectedTo, Marketing and Publicity>
diff --git a/test/diagrams/scanned_medium/diagrams_177.dot b/test/diagrams/scanned_medium/diagrams_177.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b3c8ac8385c9a52d28b57b0f02186106600e73ac
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_177.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=TB
+	N0 [label="Film Festival Submission" color="#BDAFA8" fillcolor="#E4E0DF" shape=vnode_shape style=filled]
+	N1 [label="Color Grading" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+	N2 [label="Screenwriting Workshops" color="#82DAFF" fillcolor="#C8EDFF" shape=predefinedprocess style=filled]
+	N3 [label="Stunt Coordination" color="#BDBDBD" fillcolor="#F5F5F5" shape=parallelogram style=filled]
+	N4 [label="Script Development" color="#82DAFF" fillcolor="#C8EDFF" shape=ellipse style=filled]
+	N5 [label="Sound Recording" color="#BDAFA8" fillcolor="#E4E0DF" shape=hexagon style=filled]
+	N6 [label="Cinematography" color="#BDAFA8" fillcolor="#E4E0DF" shape=box style=filled]
+	N7 [label="Green Production Practices" color="#BDBDBD" fillcolor="#F5F5F5" shape=predefinedprocess style=filled]
+	N8 [label="Legal Compliance" color="#82DAFF" fillcolor="#C8EDFF" shape=inputoutput style=filled]
+	N9 [label="Special Effects" color="#BDAFA8" fillcolor="#E4E0DF" shape=box style=filled]
+	N10 [label="Talent Negotiation" color="#BDAFA8" fillcolor="#E4E0DF" shape=rectangle style=filled]
+	S0 [label="" color="#BDAFA8" fillcolor="#E4E0DF" 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="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Casting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Casting"
+		nest0_0 [label="Distribution Strategy" color="#BDAFA8" fillcolor="#E4E0DF" shape=preparation style=filled]
+		nest0_1 [label="Production Scheduling" color="#82DAFF" fillcolor="#C8EDFF" shape=vnode_shape style=filled]
+		nest0_2 [label="Costume Design" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+		nest0_3 [label="Audience Research" color="#BDAFA8" fillcolor="#E4E0DF" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#BDAFA8" 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="lights" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#82DAFF" penwidth=1.5 style=solid label="negotiates" dir=forward]
+	N5 -> N6 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#BDAFA8" 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=solid label="schedules" dir=forward]
+	N9 -> N10 [color="#82DAFF" 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="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#82DAFF" penwidth=1.5 style=dashed label="secures" dir=forward]
+	nest0_3 -> N2 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#BDBDBD" penwidth=1.5 style=solid label="renders" dir=forward]
+	N2 -> M0 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	M1 -> N9 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_177.txt b/test/diagrams/scanned_medium/diagrams_177.txt
new file mode 100644
index 0000000000000000000000000000000000000000..095b6f6716e489845a0cad3e4545b71c93e55cef
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_177.txt
@@ -0,0 +1,25 @@
+<Audience Research, connectedTo, Screenwriting Workshops>
+<Audience Research, partOf, Audience Research>
+<Cinematography, connectedTo, Green Production Practices>
+<Cinematography, secures, Distribution Strategy>
+<Color Grading, connectedTo, Screenwriting Workshops>
+<Costume Design, connectedTo, Audience Research>
+<Costume Design, partOf, Costume Design>
+<Distribution Strategy, connectedTo, Production Scheduling>
+<Distribution Strategy, partOf, Distribution Strategy>
+<Film Festival Submission, connectedTo, Color Grading>
+<Film Festival Submission, connectedTo, Green Production Practices>
+<Film Festival Submission, connectedTo, Sound Recording>
+<Film Festival Submission, renders, Stunt Coordination>
+<Green Production Practices, connectedTo, Legal Compliance>
+<Green Production Practices, connectedTo, Special Effects>
+<Legal Compliance, schedules, Special Effects>
+<Production Scheduling, connectedTo, Costume Design>
+<Production Scheduling, partOf, Production Scheduling>
+<Screenwriting Workshops, connectedTo, Sound Recording>
+<Screenwriting Workshops, connectedTo, Special Effects>
+<Screenwriting Workshops, lights, Stunt Coordination>
+<Script Development, negotiates, Sound Recording>
+<Sound Recording, connectedTo, Cinematography>
+<Special Effects, connectedTo, Talent Negotiation>
+<Stunt Coordination, connectedTo, Script Development>
diff --git a/test/diagrams/scanned_medium/diagrams_178.dot b/test/diagrams/scanned_medium/diagrams_178.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3918bb3c5a5516792be8af054ee83c2cdc804d8f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_178.dot
@@ -0,0 +1,40 @@
+digraph {
+	rankdir=TB
+	N0 [label="Audience Analysis" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+	N1 [label="Monetization Strategy" color="#64B5F6" fillcolor="#E3F2FD" shape=rectangle style=filled]
+	N2 [label="Blog Post Writing" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N3 [label="Copywriting" color="#64B5F6" fillcolor="#E3F2FD" shape=inputoutput style=filled]
+	N4 [label="Search Engine Optimization" color="#73C6BC" fillcolor="#D0EFEE" shape=inputoutput style=filled]
+	N5 [label="Keyword Research" color="#64B5F6" fillcolor="#E3F2FD" shape=predefinedprocess style=filled]
+	N6 [label="User_Generated Content Curation" color="#BCB88A" fillcolor="#F5F5DC" shape=vnode_shape style=filled]
+	N7 [label="Video Scripting" color="#64B5F6" fillcolor="#E3F2FD" shape=predefinedprocess style=filled]
+	S0 [label="" color="#64B5F6" fillcolor="#E3F2FD" 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_Plagiarism Checking {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Plagiarism Checking"
+		nest0_0 [label="Ideation and Brainstorming" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+		nest0_1 [label="Content Repurposing" color="#64B5F6" fillcolor="#E3F2FD" shape=parallelogram style=filled]
+		nest0_2 [label="Drafting Content" color="#BCB88A" fillcolor="#F5F5DC" shape=predefinedprocess style=filled]
+		nest0_3 [label="Content Localization" color="#BCB88A" fillcolor="#F5F5DC" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#73C6BC" penwidth=1.5 style=dashed label="researches" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="moderates" dir=forward]
+	nest0_1 -> nest0_2 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=dashed label="automates" dir=forward]
+	N1 -> M0 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=dashed label="writes" 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_medium/diagrams_178.txt b/test/diagrams/scanned_medium/diagrams_178.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6b86f5783a7e26a00959546eb2bcd8981b60c882
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_178.txt
@@ -0,0 +1,16 @@
+<Audience Analysis, connectedTo, Monetization Strategy>
+<Audience Analysis, writes, Search Engine Optimization>
+<Blog Post Writing, connectedTo, Copywriting>
+<Content Localization, connectedTo, Copywriting>
+<Content Repurposing, connectedTo, Drafting Content>
+<Copywriting, automates, Video Scripting>
+<Copywriting, connectedTo, Search Engine Optimization>
+<Copywriting, connectedTo, User_Generated Content Curation>
+<Drafting Content, connectedTo, Content Localization>
+<Ideation and Brainstorming, moderates, Content Repurposing>
+<Keyword Research, connectedTo, Ideation and Brainstorming>
+<Keyword Research, connectedTo, User_Generated Content Curation>
+<Monetization Strategy, connectedTo, Blog Post Writing>
+<Monetization Strategy, connectedTo, Search Engine Optimization>
+<Search Engine Optimization, connectedTo, Keyword Research>
+<User_Generated Content Curation, researches, Video Scripting>
diff --git a/test/diagrams/scanned_medium/diagrams_179.dot b/test/diagrams/scanned_medium/diagrams_179.dot
new file mode 100644
index 0000000000000000000000000000000000000000..76f40ac61fe796f379a6c71cb972ab42e5ac73f6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_179.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=LR
+	N0 [label="Photography" color="#4285F4" fillcolor="#D0E0F8" shape=document style=filled]
+	N1 [label="Copywriting" color="#9575CD" fillcolor="#EDE7F6" shape=parallelogram style=filled]
+	N2 [label="Distribution Planning" color="#00BCD4" fillcolor="#B2EBF2" shape=vnode_shape style=filled]
+	N3 [label="Drafting Content" color="#4285F4" fillcolor="#D0E0F8" shape=database style=filled]
+	N4 [label="Content Management System Operation" color="#4285F4" fillcolor="#D0E0F8" shape=predefinedprocess style=filled]
+	N5 [label="Transcribing Audio or Video" color="#4285F4" fillcolor="#D0E0F8" shape=multipledocuments style=filled]
+	N6 [label="Voice Acting or Narration" color="#4285F4" fillcolor="#D0E0F8" shape=rectangle style=filled]
+	N7 [label="Social Media Post Creation" color="#00BCD4" fillcolor="#B2EBF2" shape=vnode_shape style=filled]
+	N8 [label="Videography" color="#4285F4" fillcolor="#D0E0F8" shape=multipledocuments style=filled]
+	N9 [label="Branding" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N10 [label="Publishing" color="#4285F4" fillcolor="#D0E0F8" shape=rectangle style=filled]
+	S0 [label="" color="#9575CD" fillcolor="#EDE7F6" 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]
+	M0 [label="" color="#9575CD" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Graphic Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Graphic Design"
+		nest0_0 [label="Audio Recording" color="#9575CD" fillcolor="#EDE7F6" shape=preparation style=filled]
+		nest0_1 [label="Animation" color="#4285F4" fillcolor="#D0E0F8" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#9575CD" 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="#00BCD4" penwidth=1.5 style=solid label="engages" dir=forward]
+	N6 -> N7 [color="#9575CD" 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="#00BCD4" penwidth=1.5 style=dashed label="audios" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N6 [color="#00BCD4" penwidth=1.5 style=solid label="hosts" dir=forward]
+	N0 -> S0 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid label="designs" dir=forward]
+	N7 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#00BCD4" penwidth=1.5 style=solid label="edits" dir=forward]
+	M0 -> N9 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_179.txt b/test/diagrams/scanned_medium/diagrams_179.txt
new file mode 100644
index 0000000000000000000000000000000000000000..97b9ea3ccacd78c89c1ce807a3985ab8925986fd
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_179.txt
@@ -0,0 +1,19 @@
+<Animation, hosts, Voice Acting or Narration>
+<Audio Recording, connectedTo, Animation>
+<Branding, audios, Publishing>
+<Content Management System Operation, connectedTo, Transcribing Audio or Video>
+<Copywriting, connectedTo, Distribution Planning>
+<Distribution Planning, connectedTo, Drafting Content>
+<Distribution Planning, edits, Branding>
+<Drafting Content, connectedTo, Audio Recording>
+<Drafting Content, connectedTo, Content Management System Operation>
+<Photography, connectedTo, Branding>
+<Photography, connectedTo, Content Management System Operation>
+<Photography, connectedTo, Copywriting>
+<Social Media Post Creation, connectedTo, Branding>
+<Social Media Post Creation, connectedTo, Publishing>
+<Social Media Post Creation, connectedTo, Videography>
+<Social Media Post Creation, designs, Branding>
+<Transcribing Audio or Video, engages, Voice Acting or Narration>
+<Videography, connectedTo, Branding>
+<Voice Acting or Narration, connectedTo, Social Media Post Creation>
diff --git a/test/diagrams/scanned_medium/diagrams_18.dot b/test/diagrams/scanned_medium/diagrams_18.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4be309e80193ef673272023ba459bb0e2fa64913
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_18.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=BT
+	N0 [label="Stock Replenishment" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+	N1 [label="Curbside Delivery" color="#00BCD4" fillcolor="#B2EBF2" shape=document style=filled]
+	N2 [label="Product Demonstration" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+	N3 [label="Customer Engagement" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N4 [label="Payment Processing" color="#E57373" fillcolor="#FFEBEE" shape=document style=filled]
+	N5 [label="Seasonal Sales Planning" color="#E57373" fillcolor="#FFEBEE" shape=rect style=filled]
+	N6 [label="Loss Prevention" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+	N7 [label="Online Order Pickup" color="#00BCD4" fillcolor="#B2EBF2" shape=predefinedprocess style=filled]
+	N8 [label="Security Tagging" color="#00BCD4" fillcolor="#B2EBF2" shape=preparation style=filled]
+	N9 [label="Promotion Planning" color="#E57373" fillcolor="#FFEBEE" shape=inputoutput style=filled]
+	N0 -> N1 [color="#00BCD4" penwidth=1.5 style=solid label="engages" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#E57373" penwidth=1.5 style=dashed label="recommends" dir=forward]
+	N3 -> N4 [color="#E57373" penwidth=1.5 style=dashed label="hires" dir=forward]
+	N4 -> N5 [color="#E57373" penwidth=1.5 style=dashed label="assists" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#E57373" penwidth=1.5 style=solid label="arranges" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N0 -> N9 [color="#000000" penwidth=1.5 style=dashed label="stocks" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_18.txt b/test/diagrams/scanned_medium/diagrams_18.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3ac2a2e2a6d1a99f490c6df31c0504a7cf95a089
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_18.txt
@@ -0,0 +1,10 @@
+<Curbside Delivery, connectedTo, Product Demonstration>
+<Customer Engagement, hires, Payment Processing>
+<Loss Prevention, arranges, Online Order Pickup>
+<Online Order Pickup, connectedTo, Security Tagging>
+<Payment Processing, assists, Seasonal Sales Planning>
+<Product Demonstration, recommends, Customer Engagement>
+<Seasonal Sales Planning, connectedTo, Loss Prevention>
+<Security Tagging, connectedTo, Promotion Planning>
+<Stock Replenishment, engages, Curbside Delivery>
+<Stock Replenishment, stocks, Promotion Planning>
diff --git a/test/diagrams/scanned_medium/diagrams_180.dot b/test/diagrams/scanned_medium/diagrams_180.dot
new file mode 100644
index 0000000000000000000000000000000000000000..65687241cb0535aaaa70d24b204dec5b44cb2d77
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_180.dot
@@ -0,0 +1,34 @@
+digraph {
+	rankdir=RL
+	N0 [label="Videography" color="#8C9EFF" fillcolor="#D3D7EB" shape=predefinedprocess style=filled]
+	N1 [label="Blog Post Writing" color="#EAEFA5" fillcolor="#FDFCEB" shape=parallelogram style=filled]
+	N2 [label="Distribution Planning" color="#EAEFA5" fillcolor="#FDFCEB" shape=preparation style=filled]
+	N3 [label="Interactive Content Development" color="#8C9EFF" fillcolor="#D3D7EB" shape=inputoutput style=filled]
+	N4 [label="Newsletter Creation" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N5 [label="Audience Analysis" color="#EAEFA5" fillcolor="#FDFCEB" shape=inputoutput style=filled]
+	N6 [label="Voice Acting or Narration" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	M0 [label="" color="#AF56A6" fillcolor="#DDCEDD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Research and Outline {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Research and Outline"
+		nest0_0 [label="Keyword Research" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+		nest0_1 [label="Ideation and Brainstorming" color="#EAEFA5" fillcolor="#FDFCEB" shape=box style=filled]
+		nest0_2 [label="Call to Action Design" color="#AF56A6" fillcolor="#DDCEDD" shape=rect style=filled]
+		nest0_3 [label="Transcribing Audio or Video" color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#AF56A6" penwidth=1.5 style=solid label="photographs" dir=forward]
+	N1 -> N2 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#AF56A6" penwidth=1.5 style=solid label="reports" dir=forward]
+	N4 -> N5 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#EAEFA5" penwidth=1.5 style=dashed label="promotes" dir=forward]
+	nest0_0 -> nest0_1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#8C9EFF" penwidth=1.5 style=solid label="outlines" dir=forward]
+	nest0_2 -> nest0_3 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N4 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#AF56A6" penwidth=1.5 style=dashed label="collaborates" dir=forward]
+	M0 -> N4 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_180.txt b/test/diagrams/scanned_medium/diagrams_180.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d558b0b6a0ab9f1ac96c71c866ee941523b511b6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_180.txt
@@ -0,0 +1,13 @@
+<Audience Analysis, promotes, Voice Acting or Narration>
+<Blog Post Writing, connectedTo, Distribution Planning>
+<Blog Post Writing, connectedTo, Keyword Research>
+<Call to Action Design, connectedTo, Transcribing Audio or Video>
+<Distribution Planning, connectedTo, Interactive Content Development>
+<Distribution Planning, connectedTo, Newsletter Creation>
+<Ideation and Brainstorming, outlines, Call to Action Design>
+<Interactive Content Development, reports, Newsletter Creation>
+<Keyword Research, connectedTo, Ideation and Brainstorming>
+<Newsletter Creation, connectedTo, Audience Analysis>
+<Transcribing Audio or Video, connectedTo, Newsletter Creation>
+<Videography, collaborates, Newsletter Creation>
+<Videography, photographs, Blog Post Writing>
diff --git a/test/diagrams/scanned_medium/diagrams_181.dot b/test/diagrams/scanned_medium/diagrams_181.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4f9784c2d1540134d97f4d31aae96b9e53ab4392
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_181.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=TB
+	N0 [label="Data Governance" color="#7986CB" fillcolor="#E8EAF6" shape=action style=filled]
+	N1 [label="Predictive Analytics" color="#7986CB" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N2 [label="Supply Chain Analytics" color="#A1D7CD" fillcolor="#EDF5F3" shape=hexagon style=filled]
+	N3 [label="Data Security Best Practices" color="#FFC2C2" fillcolor="#FFEBEB" shape=action style=filled]
+	N4 [label="Natural Language Processing for Data" color="#FFC2C2" fillcolor="#FFEBEB" shape=multipledocuments style=filled]
+	N5 [label="Social Media Analytics" color="#FFC2C2" fillcolor="#FFEBEB" shape=parallelogram style=filled]
+	N6 [label="Operational Efficiency Metrics" color="#A1D7CD" fillcolor="#EDF5F3" shape=box style=filled]
+	N7 [label="Customer Analytics" color="#A1D7CD" fillcolor="#EDF5F3" shape=parallelogram style=filled]
+	N8 [label="Sales Performance Analysis" color="#FFC2C2" fillcolor="#FFEBEB" shape=document style=filled]
+	N9 [label="Marketing Campaign Analysis" color="#A1D7CD" fillcolor="#EDF5F3" shape=box style=filled]
+	N10 [label="Big Data Processing" color="#FFC2C2" fillcolor="#FFEBEB" shape=parallelogram style=filled]
+	S0 [label="" color="#7986CB" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFC2C2" fillcolor="#FFEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Data Transformation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Data Transformation"
+		nest0_0 [label="Data Quality Assurance" color="#A1D7CD" fillcolor="#EDF5F3" shape=hexagon style=filled]
+		nest0_1 [label="Dashboard Creation" color="#A1D7CD" fillcolor="#EDF5F3" shape=action style=filled]
+	}
+	N0 -> N1 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A1D7CD" penwidth=1.5 style=dashed label="transforms" dir=forward]
+	N3 -> N4 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#A1D7CD" penwidth=1.5 style=dashed label="validates" dir=forward]
+	N9 -> N10 [color="#7986CB" penwidth=1.5 style=solid label="governs" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#A1D7CD" penwidth=1.5 style=solid label="tracks" dir=forward]
+	nest0_1 -> N3 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N5 -> M0 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_181.txt b/test/diagrams/scanned_medium/diagrams_181.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7f55c47fbe9e5c573b93cd6af56202d1c986cf18
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_181.txt
@@ -0,0 +1,17 @@
+<Customer Analytics, connectedTo, Sales Performance Analysis>
+<Dashboard Creation, connectedTo, Data Security Best Practices>
+<Data Governance, connectedTo, Predictive Analytics>
+<Data Quality Assurance, connectedTo, Dashboard Creation>
+<Data Security Best Practices, analyzes, Customer Analytics>
+<Data Security Best Practices, connectedTo, Natural Language Processing for Data>
+<Data Security Best Practices, connectedTo, Sales Performance Analysis>
+<Data Security Best Practices, connectedTo, Social Media Analytics>
+<Marketing Campaign Analysis, governs, Big Data Processing>
+<Natural Language Processing for Data, connectedTo, Social Media Analytics>
+<Operational Efficiency Metrics, connectedTo, Customer Analytics>
+<Operational Efficiency Metrics, tracks, Data Quality Assurance>
+<Predictive Analytics, connectedTo, Supply Chain Analytics>
+<Sales Performance Analysis, validates, Marketing Campaign Analysis>
+<Social Media Analytics, connectedTo, Customer Analytics>
+<Social Media Analytics, connectedTo, Operational Efficiency Metrics>
+<Supply Chain Analytics, transforms, Data Security Best Practices>
diff --git a/test/diagrams/scanned_medium/diagrams_182.dot b/test/diagrams/scanned_medium/diagrams_182.dot
new file mode 100644
index 0000000000000000000000000000000000000000..904833ce86c8b0062183d1c8fb9c380d6a70c8be
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_182.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=BT
+	N0 [label="Data Warehouse Design" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+	N1 [label="Healthcare Data Analysis" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N2 [label="HR Data Analytics" color="#4CAF50" fillcolor="#C8E6C9" shape=document style=filled]
+	N3 [label="Supply Chain Analytics" color="#A2D0FF" fillcolor="#E8F0FF" shape=document style=filled]
+	N4 [label="Business User Training on Analytics" color="#4CAF50" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	N5 [label="Natural Language Processing for Data" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	N6 [label="Operational Efficiency Metrics" color="#4CAF50" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N7 [label="Big Data Processing" color="#7E57C2" fillcolor="#EDE7F6" shape=diamond style=filled]
+	N8 [label="Predictive Analytics" color="#7E57C2" fillcolor="#EDE7F6" shape=database 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="#7E57C2" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Machine Learning Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Machine Learning Integration"
+		nest0_0 [label="Data Mining" color="#4CAF50" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+		nest0_1 [label="Customer Analytics" color="#4CAF50" fillcolor="#C8E6C9" shape=preparation style=filled]
+		nest0_2 [label="Exploratory Data Analysis" color="#7E57C2" fillcolor="#EDE7F6" shape=multipledocuments style=filled]
+		nest0_3 [label="Data Collection" color="#4CAF50" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
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+	N3 -> N4 [color="#7E57C2" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N4 -> N5 [color="#4CAF50" penwidth=1.5 style=dashed label="shares" dir=forward]
+	N5 -> N6 [color="#4CAF50" penwidth=1.5 style=solid label="tracks" dir=forward]
+	N6 -> N7 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N8 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N4 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#4CAF50" penwidth=1.5 style=solid label="processes" dir=forward]
+	N4 -> M0 [color="#4CAF50" penwidth=1.5 style=solid label="dashboards" dir=forward]
+	M0 -> N8 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
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+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_182.txt b/test/diagrams/scanned_medium/diagrams_182.txt
new file mode 100644
index 0000000000000000000000000000000000000000..37ef8ea3b86ab3eedbc7f6681dc7fe958b2fb73f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_182.txt
@@ -0,0 +1,21 @@
+<Big Data Processing, connectedTo, Data Mining>
+<Big Data Processing, connectedTo, Predictive Analytics>
+<Business User Training on Analytics, connectedTo, Big Data Processing>
+<Business User Training on Analytics, connectedTo, Operational Efficiency Metrics>
+<Business User Training on Analytics, connectedTo, Predictive Analytics>
+<Business User Training on Analytics, dashboards, Predictive Analytics>
+<Business User Training on Analytics, shares, Natural Language Processing for Data>
+<Customer Analytics, connectedTo, Exploratory Data Analysis>
+<Data Collection, connectedTo, Predictive Analytics>
+<Data Mining, connectedTo, Customer Analytics>
+<Data Warehouse Design, connectedTo, Healthcare Data Analysis>
+<Exploratory Data Analysis, connectedTo, Data Collection>
+<HR Data Analytics, connectedTo, Supply Chain Analytics>
+<Healthcare Data Analysis, connectedTo, HR Data Analytics>
+<Natural Language Processing for Data, connectedTo, Big Data Processing>
+<Natural Language Processing for Data, tracks, Operational Efficiency Metrics>
+<Operational Efficiency Metrics, connectedTo, Big Data Processing>
+<Operational Efficiency Metrics, processes, Predictive Analytics>
+<Supply Chain Analytics, connectedTo, Operational Efficiency Metrics>
+<Supply Chain Analytics, connectedTo, Predictive Analytics>
+<Supply Chain Analytics, secures, Business User Training on Analytics>
diff --git a/test/diagrams/scanned_medium/diagrams_183.dot b/test/diagrams/scanned_medium/diagrams_183.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3f6802937f1bff8cbd5882398e78ce6f7edf0693
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_183.dot
@@ -0,0 +1,47 @@
+digraph {
+	rankdir=RL
+	N0 [label="Big Data Processing" color="#607D8B" fillcolor="#CFD8DC" shape=document style=filled]
+	N1 [label="Exploratory Data Analysis" color="#9575CD" fillcolor="#EDE7F6" shape=database style=filled]
+	N2 [label="Data Storytelling" color="#4DD0E1" fillcolor="#C9F0F0" shape=inputoutput style=filled]
+	N3 [label="Business User Training on Analytics" color="#607D8B" fillcolor="#CFD8DC" shape=vnode_shape style=filled]
+	N4 [label="Financial Data Analysis" color="#607D8B" fillcolor="#CFD8DC" shape=vnode_shape style=filled]
+	N5 [label="Dashboard Creation" color="#607D8B" fillcolor="#CFD8DC" shape=predefinedprocess style=filled]
+	N6 [label="Data Cleaning" color="#607D8B" fillcolor="#CFD8DC" shape=preparation style=filled]
+	N7 [label="Real_time Analytics" color="#607D8B" fillcolor="#CFD8DC" shape=multipledocuments style=filled]
+	N8 [label="Statistical Modeling" color="#9575CD" fillcolor="#EDE7F6" shape=parallelogram style=filled]
+	N9 [label="Data Transformation" color="#9575CD" fillcolor="#EDE7F6" shape=action style=filled]
+	S0 [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_Sentiment Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Sentiment Analysis"
+		nest0_0 [label="Customer Analytics" color="#4DD0E1" fillcolor="#C9F0F0" shape=hexagon style=filled]
+		nest0_1 [label="Sales Performance Analysis" color="#607D8B" fillcolor="#CFD8DC" shape=ellipse style=filled]
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diff --git a/test/diagrams/scanned_medium/diagrams_183.txt b/test/diagrams/scanned_medium/diagrams_183.txt
new file mode 100644
index 0000000000000000000000000000000000000000..393f98e8f1fb638941f6dcffc71f0659265d34ed
--- /dev/null
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+<Big Data Processing, researches, Dashboard Creation>
+<Big Data Processing, secures, Exploratory Data Analysis>
+<Business User Training on Analytics, connectedTo, Financial Data Analysis>
+<Customer Analytics, processes, Sales Performance Analysis>
+<Dashboard Creation, connectedTo, Data Cleaning>
+<Data Cleaning, connectedTo, Customer Analytics>
+<Data Cleaning, connectedTo, Real_time Analytics>
+<Data Cleaning, educates, Data Transformation>
+<Data Storytelling, connectedTo, Dashboard Creation>
+<Data Storytelling, connectedTo, Data Transformation>
+<Data Storytelling, connectedTo, Statistical Modeling>
+<Data Storytelling, integrates, Real_time Analytics>
+<Data Storytelling, measures, Business User Training on Analytics>
+<Data Storytelling, supports, Data Cleaning>
+<Exploratory Data Analysis, connectedTo, Dashboard Creation>
+<Exploratory Data Analysis, connectedTo, Data Storytelling>
+<Exploratory Data Analysis, transforms, Data Transformation>
+<Financial Data Analysis, connectedTo, Dashboard Creation>
+<Real_time Analytics, connectedTo, Statistical Modeling>
+<Sales Performance Analysis, connectedTo, Exploratory Data Analysis>
+<Statistical Modeling, segments, Data Transformation>
diff --git a/test/diagrams/scanned_medium/diagrams_184.dot b/test/diagrams/scanned_medium/diagrams_184.dot
new file mode 100644
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--- /dev/null
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diff --git a/test/diagrams/scanned_medium/diagrams_184.txt b/test/diagrams/scanned_medium/diagrams_184.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9c499a38366aeb0cada9dbf1422b3c8746b2ae01
--- /dev/null
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@@ -0,0 +1,21 @@
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+<Cloud BI Solutions, connectedTo, Executive Summary Reporting>
+<Cloud BI Solutions, connectedTo, Financial Performance Reporting>
+<Cloud BI Solutions, connectedTo, HR Analytics Dashboards>
+<Cloud BI Solutions, deploys, Master Data Management>
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+<Master Data Management, connectedTo, Executive Summary Reporting>
+<Master Data Management, forecasts, HR Analytics Dashboards>
+<Regulatory Compliance Reporting, connectedTo, Dashboard Design>
+<Report Automation, transforms, Strategic Planning Support>
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new file mode 100644
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@@ -0,0 +1,46 @@
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\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_185.txt b/test/diagrams/scanned_medium/diagrams_185.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ac71261defc8a22b9ed43b1e7c485546e8c6861b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_185.txt
@@ -0,0 +1,20 @@
+<Actionable Insights Generation, connectedTo, Market Trend Analysis>
+<Budget Performance Analysis, connectedTo, Data Warehousing>
+<Budget Performance Analysis, connectedTo, Mobile BI Development>
+<Dashboard Design, connectedTo, Mobile BI Development>
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+<Data Modeling, connectedTo, Budget Performance Analysis>
+<Data Modeling, connectedTo, Customer Behavior Insights>
+<Data Modeling, defines, Master Data Management>
+<Data Warehousing, connectedTo, KPI Definition>
+<KPI Definition, connectedTo, Mobile BI Development>
+<Market Trend Analysis, connectedTo, Master Data Management>
+<Market Trend Analysis, connectedTo, Operational Efficiency Measurement>
+<Master Data Management, connectedTo, Customer Behavior Insights>
+<Mobile BI Development, connectedTo, Real_time BI Dashboards>
+<Operational Efficiency Measurement, connectedTo, Dashboard Design>
+<Real_time BI Dashboards, benchmarks, Regulatory Compliance Reporting>
+<Real_time BI Dashboards, connectedTo, Operational Efficiency Measurement>
+<Regulatory Compliance Reporting, governs, Actionable Insights Generation>
+<Self_Service BI Tools, connectedTo, Data Modeling>
+<Self_Service BI Tools, measures, Mobile BI Development>
diff --git a/test/diagrams/scanned_medium/diagrams_186.txt b/test/diagrams/scanned_medium/diagrams_186.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7dee08168a675f480d74e26ee3dadd68bcf08745
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_186.txt
@@ -0,0 +1,18 @@
+<BI Platform Administration, connectedTo, Risk Assessment Reporting>
+<BI Platform Administration, plans, Data Warehousing>
+<Cloud BI Solutions, connectedTo, Data Lineage Tracking>
+<Data Lineage Tracking, self_serves, BI Platform Administration>
+<Data Mart Design, connectedTo, Supply Chain Optimization>
+<Data Mart Design, strategies, Data Warehousing>
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+<Data Security in BI, integrates, Embedded Analytics>
+<Data Source Integration, connectedTo, Market Trend Analysis>
+<Data Warehousing, deploys, Data Source Integration>
+<ETL Development, connectedTo, Cloud BI Solutions>
+<Embedded Analytics, connectedTo, BI Platform Administration>
+<Prescriptive Analytics Implementation, connectedTo, ETL Development>
+<Report Automation, connectedTo, Data Mart Design>
+<Risk Assessment Reporting, forecasts, Data Warehousing>
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+<Supply Chain Optimization, connectedTo, Prescriptive Analytics Implementation>
diff --git a/test/diagrams/scanned_medium/diagrams_187.dot b/test/diagrams/scanned_medium/diagrams_187.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b120f2ddbded69e27abdb0936619adbae32856df
--- /dev/null
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@@ -0,0 +1,56 @@
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\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_187.txt b/test/diagrams/scanned_medium/diagrams_187.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5fbd9ee5e3c4c7f640018de969800ef2268ee59e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_187.txt
@@ -0,0 +1,24 @@
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new file mode 100644
index 0000000000000000000000000000000000000000..8829a6610726903d9de572d31d766510253dd74e
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+	N1 [label="Remarketing Campaigns" color="#A188DB" fillcolor="#DED7F0" shape=preparation style=filled]
+	N2 [label="A or B Testing for Marketing" color="#82DAFF" fillcolor="#C8EDFF" shape=preparation style=filled]
+	N3 [label="Influencer Marketing" color="#82DAFF" fillcolor="#C8EDFF" shape=diamond style=filled]
+	N4 [label="Marketing Analytics" color="#CDDC39" fillcolor="#E6EE9C" shape=parallelogram style=filled]
+	N5 [label="Target Audience Identification" color="#82DAFF" fillcolor="#C8EDFF" shape=predefinedprocess style=filled]
+	N6 [label="Campaign Performance Tracking" color="#CDDC39" fillcolor="#E6EE9C" shape=vnode_shape style=filled]
+	N7 [label="Direct Mail Marketing" color="#A188DB" fillcolor="#DED7F0" shape=parallelogram style=filled]
+	N8 [label="Telemarketing" color="#CDDC39" fillcolor="#E6EE9C" shape=hexagon style=filled]
+	N9 [label="Content Marketing" color="#A188DB" fillcolor="#DED7F0" shape=document style=filled]
+	N10 [label="Marketing Budget Allocation" color="#CDDC39" fillcolor="#E6EE9C" shape=document style=filled]
+	N11 [label="Lead Generation" color="#A188DB" fillcolor="#DED7F0" shape=diamond style=filled]
+	N12 [label="Affiliate Marketing" color="#82DAFF" fillcolor="#C8EDFF" shape=document style=filled]
+	S0 [label="" color="#A188DB" fillcolor="#DED7F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#CDDC39" fillcolor="#E6EE9C" 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]
+	subgraph cluster_Personalization Strategies {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Personalization Strategies"
+		nest0_0 [label="Customer Journey Mapping" color="#A188DB" fillcolor="#DED7F0" shape=parallelogram style=filled]
+		nest0_1 [label="Brand Strategy Development" color="#82DAFF" fillcolor="#C8EDFF" shape=rectangle style=filled]
+		nest0_2 [label="Guerilla Marketing" color="#CDDC39" fillcolor="#E6EE9C" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#CDDC39" penwidth=1.5 style=solid label="manages budgets" dir=forward]
+	N4 -> N5 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#82DAFF" penwidth=1.5 style=solid label="organizes events" dir=forward]
+	N7 -> N8 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#A188DB" penwidth=1.5 style=solid label="distributes products" dir=forward]
+	N10 -> N11 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N10 -> nest0_0 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N8 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S0 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#000000" penwidth=1.5 style=dashed label="enhances experiences" dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S1 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=dashed label="runs SEM" dir=forward]
+	S1 -> N5 [color="#CDDC39" penwidth=1.5 style=solid label="brands" dir=forward]
+	N1 -> M0 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#A188DB" penwidth=1.5 style=dashed label="monitors competitors" dir=forward]
+	N2 -> M0 [color="#CDDC39" penwidth=1.5 style=solid 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_medium/diagrams_188.txt b/test/diagrams/scanned_medium/diagrams_188.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2cad740e3a0e92e5809dee8ba654a51ed1dd3f03
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_188.txt
@@ -0,0 +1,24 @@
+<A or B Testing for Marketing, connectedTo, Influencer Marketing>
+<A or B Testing for Marketing, connectedTo, Marketing Analytics>
+<Brand Strategy Development, connectedTo, Guerilla Marketing>
+<Campaign Performance Tracking, organizes events, Direct Mail Marketing>
+<Content Marketing, distributes products, Marketing Budget Allocation>
+<Customer Journey Mapping, connectedTo, Brand Strategy Development>
+<Direct Mail Marketing, connectedTo, Telemarketing>
+<Guerilla Marketing, connectedTo, Telemarketing>
+<Influencer Marketing, manages budgets, Marketing Analytics>
+<Lead Generation, connectedTo, Affiliate Marketing>
+<Marketing Analytics, connectedTo, Target Audience Identification>
+<Marketing Budget Allocation, connectedTo, Customer Journey Mapping>
+<Marketing Budget Allocation, connectedTo, Lead Generation>
+<Promotional Campaigns, connectedTo, Remarketing Campaigns>
+<Promotional Campaigns, monitors competitors, Marketing Analytics>
+<Remarketing Campaigns, brands, Target Audience Identification>
+<Remarketing Campaigns, connectedTo, A or B Testing for Marketing>
+<Remarketing Campaigns, connectedTo, Marketing Analytics>
+<Remarketing Campaigns, runs SEM, Direct Mail Marketing>
+<Target Audience Identification, connectedTo, Campaign Performance Tracking>
+<Telemarketing, connectedTo, Content Marketing>
+<Telemarketing, connectedTo, Lead Generation>
+<Telemarketing, connectedTo, Marketing Budget Allocation>
+<Telemarketing, enhances experiences, Affiliate Marketing>
diff --git a/test/diagrams/scanned_medium/diagrams_189.dot b/test/diagrams/scanned_medium/diagrams_189.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0dc68a8f0f33417624d7fa39635923af317eda77
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_189.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=TB
+	N0 [label="Content Marketing" color="#FFCC7A" fillcolor="#FFF6D9" shape=hexagon style=filled]
+	N1 [label="Marketing Automation" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N2 [label="Social Media Marketing" color="#00BCD4" fillcolor="#E0F7FA" shape=predefinedprocess style=filled]
+	N3 [label="Customer Journey Mapping" color="#5C6BC0" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	N4 [label="Email Marketing" color="#00BCD4" fillcolor="#E0F7FA" shape=database style=filled]
+	N5 [label="Brand Reputation Management" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+	N6 [label="Promotional Campaigns" color="#00BCD4" fillcolor="#E0F7FA" shape=inputoutput style=filled]
+	N7 [label="Website Design and Optimization" color="#FFCC7A" fillcolor="#FFF6D9" shape=multipledocuments style=filled]
+	N8 [label="Product Launch Strategy" color="#5C6BC0" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N9 [label="Loyalty Programs" color="#FFCC7A" fillcolor="#FFF6D9" shape=ellipse style=filled]
+	N10 [label="Partnership Marketing" color="#00BCD4" fillcolor="#E0F7FA" shape=predefinedprocess style=filled]
+	N11 [label="Target Audience Identification" color="#FFCC7A" fillcolor="#FFF6D9" shape=database style=filled]
+	N12 [label="Lead Generation" color="#00BCD4" fillcolor="#E0F7FA" shape=database style=filled]
+	N13 [label="Telemarketing" color="#00BCD4" fillcolor="#E0F7FA" shape=predefinedprocess style=filled]
+	S0 [label="" color="#00BCD4" fillcolor="#E0F7FA" 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]
+	subgraph cluster_Mobile Marketing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mobile Marketing"
+		nest0_0 [label="Event Marketing" color="#00BCD4" fillcolor="#E0F7FA" shape=action style=filled]
+		nest0_1 [label="Brand Strategy Development" color="#FFCC7A" fillcolor="#FFF6D9" shape=database style=filled]
+	}
+	N0 -> N1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFCC7A" penwidth=1.5 style=dashed label="direct mail" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="manages reputation" dir=forward]
+	N3 -> N4 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N7 [color="#00BCD4" penwidth=1.5 style=solid label="promotes sales" dir=forward]
+	N5 -> S0 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=dashed 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_medium/diagrams_189.txt b/test/diagrams/scanned_medium/diagrams_189.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2e3d8990bc15ca782e91d10e075268abbb2da42f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_189.txt
@@ -0,0 +1,20 @@
+<Brand Reputation Management, connectedTo, Lead Generation>
+<Brand Reputation Management, connectedTo, Product Launch Strategy>
+<Brand Reputation Management, connectedTo, Promotional Campaigns>
+<Brand Strategy Development, promotes sales, Website Design and Optimization>
+<Content Marketing, connectedTo, Marketing Automation>
+<Content Marketing, connectedTo, Promotional Campaigns>
+<Customer Journey Mapping, connectedTo, Email Marketing>
+<Email Marketing, connectedTo, Brand Reputation Management>
+<Email Marketing, connectedTo, Promotional Campaigns>
+<Event Marketing, connectedTo, Brand Strategy Development>
+<Lead Generation, connectedTo, Telemarketing>
+<Loyalty Programs, connectedTo, Partnership Marketing>
+<Marketing Automation, direct mail, Social Media Marketing>
+<Partnership Marketing, connectedTo, Target Audience Identification>
+<Product Launch Strategy, connectedTo, Loyalty Programs>
+<Promotional Campaigns, connectedTo, Event Marketing>
+<Promotional Campaigns, connectedTo, Website Design and Optimization>
+<Social Media Marketing, manages reputation, Customer Journey Mapping>
+<Target Audience Identification, connectedTo, Lead Generation>
+<Website Design and Optimization, connectedTo, Product Launch Strategy>
diff --git a/test/diagrams/scanned_medium/diagrams_19.dot b/test/diagrams/scanned_medium/diagrams_19.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a918a4f8fbe9b0dfeb1300415ebe2f95e83e95eb
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_19.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=RL
+	N0 [label="Customer Test Drive" color="#BDAFA8" fillcolor="#E4E0DF" shape=box style=filled]
+	N1 [label="Assembly Line Setup" color="#F44336" fillcolor="#FFCDD2" shape=multipledocuments style=filled]
+	N2 [label="Supplier Selection" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+	N3 [label="Research and Development" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N4 [label="Recall Management" color="#F44336" fillcolor="#FFCDD2" shape=document style=filled]
+	N5 [label="Fluid Level Check" color="#BDAFA8" fillcolor="#E4E0DF" shape=preparation style=filled]
+	N6 [label="Brake System Check" color="#F44336" fillcolor="#FFCDD2" shape=vnode_shape style=filled]
+	N7 [label="Robotics in Production" color="#BCB88A" fillcolor="#F5F5DC" shape=predefinedprocess style=filled]
+	N8 [label="Vehicle Connectivity" color="#BDAFA8" fillcolor="#E4E0DF" shape=ellipse style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="inspects" dir=forward]
+	N1 -> N2 [color="#BDAFA8" penwidth=1.5 style=dashed label="prototypes" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#F44336" penwidth=1.5 style=dashed label="services" dir=forward]
+	N4 -> N5 [color="#F44336" penwidth=1.5 style=dashed label="automates" dir=forward]
+	N5 -> N6 [color="#BDAFA8" penwidth=1.5 style=dashed label="recalls" dir=forward]
+	N6 -> N7 [color="#BDAFA8" penwidth=1.5 style=solid label="audits" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N6 [color="#F44336" penwidth=1.5 style=solid label="finances" dir=forward]
+	N4 -> N3 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_19.txt b/test/diagrams/scanned_medium/diagrams_19.txt
new file mode 100644
index 0000000000000000000000000000000000000000..85985c4e63b00d9f48e5ac50132301a71ebb10b0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_19.txt
@@ -0,0 +1,10 @@
+<Assembly Line Setup, prototypes, Supplier Selection>
+<Brake System Check, audits, Robotics in Production>
+<Customer Test Drive, inspects, Assembly Line Setup>
+<Fluid Level Check, recalls, Brake System Check>
+<Recall Management, automates, Fluid Level Check>
+<Recall Management, connectedTo, Research and Development>
+<Research and Development, services, Recall Management>
+<Robotics in Production, connectedTo, Vehicle Connectivity>
+<Supplier Selection, connectedTo, Research and Development>
+<Vehicle Connectivity, finances, Brake System Check>
diff --git a/test/diagrams/scanned_medium/diagrams_190.dot b/test/diagrams/scanned_medium/diagrams_190.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1222d5c2ea8daa826591cb747f5e61aadc5cc540
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_190.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=LR
+	N0 [label="Competitor Ad Analysis" color="#F44336" fillcolor="#FFCDD2" shape=preparation style=filled]
+	N1 [label="Customer Acquisition Cost Analysis" color="#F44336" fillcolor="#FFCDD2" shape=diamond style=filled]
+	N2 [label="Outdoor Advertising" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N3 [label="Search Engine Ads" color="#F44336" fillcolor="#FFCDD2" shape=database style=filled]
+	N4 [label="Radio Advertising" color="#FF8A65" fillcolor="#FBE9E7" shape=action style=filled]
+	N5 [label="Regulatory Compliance for Ads" color="#F44336" fillcolor="#FFCDD2" shape=diamond style=filled]
+	N6 [label="Television Advertising" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N7 [label="Social Media Ads" color="#F44336" fillcolor="#FFCDD2" shape=vnode_shape style=filled]
+	N8 [label="Ad Copywriting" color="#FF8A65" fillcolor="#FBE9E7" shape=inputoutput style=filled]
+	N9 [label="Direct Response Campaigns" color="#F44336" fillcolor="#FFCDD2" shape=action style=filled]
+	N10 [label="Campaign Planning" color="#F44336" fillcolor="#FFCDD2" shape=hexagon style=filled]
+	N11 [label="Digital Advertising" color="#F44336" fillcolor="#FFCDD2" shape=rectangle style=filled]
+	S0 [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_Programmatic Advertising {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Programmatic Advertising"
+		nest0_0 [label="Ad Placement Optimization" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+		nest0_1 [label="Print Advertising" color="#F44336" fillcolor="#FFCDD2" shape=database style=filled]
+		nest0_2 [label="Privacy Concerns in Ads" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FF8A65" penwidth=1.5 style=solid label="social media ads" dir=forward]
+	N7 -> N8 [color="#F7BEE0" 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 dir=forward]
+	N10 -> N11 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N9 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FF8A65" penwidth=1.5 style=dashed label="print advertising" dir=forward]
+	S0 -> N2 [color="#F44336" penwidth=1.5 style=dashed label="search ads" dir=forward]
+	N1 -> M1 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#F7BEE0" 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_medium/diagrams_190.txt b/test/diagrams/scanned_medium/diagrams_190.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e02fafd36c5bc8fd7ccc92fc40ef7ecb34f925d3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_190.txt
@@ -0,0 +1,19 @@
+<Ad Copywriting, connectedTo, Direct Response Campaigns>
+<Ad Placement Optimization, connectedTo, Print Advertising>
+<Campaign Planning, connectedTo, Digital Advertising>
+<Competitor Ad Analysis, connectedTo, Customer Acquisition Cost Analysis>
+<Competitor Ad Analysis, print advertising, Social Media Ads>
+<Competitor Ad Analysis, search ads, Outdoor Advertising>
+<Customer Acquisition Cost Analysis, connectedTo, Outdoor Advertising>
+<Customer Acquisition Cost Analysis, connectedTo, Television Advertising>
+<Direct Response Campaigns, connectedTo, Campaign Planning>
+<Outdoor Advertising, connectedTo, Search Engine Ads>
+<Outdoor Advertising, connectedTo, Television Advertising>
+<Print Advertising, connectedTo, Privacy Concerns in Ads>
+<Privacy Concerns in Ads, connectedTo, Direct Response Campaigns>
+<Radio Advertising, connectedTo, Ad Placement Optimization>
+<Radio Advertising, connectedTo, Regulatory Compliance for Ads>
+<Regulatory Compliance for Ads, connectedTo, Television Advertising>
+<Search Engine Ads, connectedTo, Radio Advertising>
+<Social Media Ads, connectedTo, Ad Copywriting>
+<Television Advertising, social media ads, Social Media Ads>
diff --git a/test/diagrams/scanned_medium/diagrams_191.dot b/test/diagrams/scanned_medium/diagrams_191.dot
new file mode 100644
index 0000000000000000000000000000000000000000..070fa9e5eea4909a59d61be98ac042665d72e9e5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_191.dot
@@ -0,0 +1,55 @@
+digraph {
+	rankdir=TB
+	N0 [label="Audience Targeting" color="#FFC085" fillcolor="#FFDAB9" shape=inputoutput style=filled]
+	N1 [label="Geo_Targeting" color="#FFD54F" fillcolor="#FFF8E1" shape=predefinedprocess style=filled]
+	N2 [label="Ad Network Management" color="#795548" fillcolor="#D7CCC8" shape=database style=filled]
+	N3 [label="Campaign Planning" color="#795548" fillcolor="#D7CCC8" shape=hexagon style=filled]
+	N4 [label="Search Engine Ads" color="#FFC085" fillcolor="#FFDAB9" shape=database style=filled]
+	N5 [label="Conversion Tracking" color="#FFD54F" fillcolor="#FFF8E1" shape=vnode_shape style=filled]
+	N6 [label="Outdoor Advertising" color="#FFC085" fillcolor="#FFDAB9" shape=preparation style=filled]
+	N7 [label="A or B Testing for Ads" color="#795548" fillcolor="#D7CCC8" shape=ellipse style=filled]
+	N8 [label="Audience Segmentation for Ads" color="#795548" fillcolor="#D7CCC8" shape=parallelogram style=filled]
+	N9 [label="Video Advertising" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N10 [label="Landing Page Optimization" color="#795548" fillcolor="#D7CCC8" shape=document style=filled]
+	N11 [label="Print Advertising" color="#795548" fillcolor="#D7CCC8" shape=parallelogram style=filled]
+	N12 [label="Social Media Ads" color="#FFC085" fillcolor="#FFDAB9" shape=rectangle style=filled]
+	N13 [label="Return on Ad Spend Calculation" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+	N14 [label="Competitor Ad Analysis" color="#FFD54F" fillcolor="#FFF8E1" shape=predefinedprocess style=filled]
+	S0 [label="" color="#FFD54F" fillcolor="#FFF8E1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFC085" fillcolor="#FFDAB9" 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_Media Buying {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Media Buying"
+		nest0_0 [label="Digital Advertising" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+		nest0_1 [label="Visual Design for Ads" color="#795548" fillcolor="#D7CCC8" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#FFD54F" penwidth=1.5 style=dashed label="monitors competitors" dir=forward]
+	N1 -> N2 [color="#000000" 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=dashed dir=forward]
+	N4 -> N5 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFD54F" penwidth=1.5 style=solid label="measures ROAS" dir=forward]
+	N10 -> N11 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#795548" penwidth=1.5 style=dashed label="television ads" dir=forward]
+	N1 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N3 [color="#FFC085" penwidth=1.5 style=solid label="outdoor ads" dir=forward]
+	N2 -> S0 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#795548" penwidth=1.5 style=dashed label="plans campaigns" dir=forward]
+	N3 -> M0 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_191.txt b/test/diagrams/scanned_medium/diagrams_191.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a76ae9cab3b4c2cdbb8db54aa5f8655f7b021786
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_191.txt
@@ -0,0 +1,24 @@
+<A or B Testing for Ads, connectedTo, Audience Segmentation for Ads>
+<Ad Network Management, connectedTo, Campaign Planning>
+<Ad Network Management, connectedTo, Outdoor Advertising>
+<Ad Network Management, plans campaigns, Return on Ad Spend Calculation>
+<Audience Segmentation for Ads, connectedTo, Video Advertising>
+<Audience Targeting, connectedTo, A or B Testing for Ads>
+<Audience Targeting, connectedTo, Conversion Tracking>
+<Audience Targeting, monitors competitors, Geo_Targeting>
+<Campaign Planning, connectedTo, A or B Testing for Ads>
+<Campaign Planning, connectedTo, Conversion Tracking>
+<Campaign Planning, connectedTo, Search Engine Ads>
+<Conversion Tracking, connectedTo, Outdoor Advertising>
+<Digital Advertising, television ads, Visual Design for Ads>
+<Geo_Targeting, connectedTo, Ad Network Management>
+<Geo_Targeting, connectedTo, Conversion Tracking>
+<Geo_Targeting, connectedTo, Digital Advertising>
+<Landing Page Optimization, connectedTo, Print Advertising>
+<Outdoor Advertising, connectedTo, A or B Testing for Ads>
+<Print Advertising, connectedTo, Social Media Ads>
+<Return on Ad Spend Calculation, connectedTo, Competitor Ad Analysis>
+<Search Engine Ads, connectedTo, Conversion Tracking>
+<Social Media Ads, connectedTo, Return on Ad Spend Calculation>
+<Video Advertising, measures ROAS, Landing Page Optimization>
+<Visual Design for Ads, outdoor ads, Campaign Planning>
diff --git a/test/diagrams/scanned_medium/diagrams_192.dot b/test/diagrams/scanned_medium/diagrams_192.dot
new file mode 100644
index 0000000000000000000000000000000000000000..13f12270ff339ce3be98cf1fde554d9bc65a5e91
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_192.dot
@@ -0,0 +1,56 @@
+digraph {
+	rankdir=RL
+	N0 [label="A or B Testing for Ads" color="#90A4AE" fillcolor="#ECEFF1" shape=inputoutput style=filled]
+	N1 [label="Audience Segmentation for Ads" color="#80DDEA" fillcolor="#D3F7F9" shape=predefinedprocess style=filled]
+	N2 [label="Interactive Ad Formats" color="#90A4AE" fillcolor="#ECEFF1" shape=inputoutput style=filled]
+	N3 [label="Ad Placement Optimization" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N4 [label="Radio Advertising" color="#D3EB9F" fillcolor="#F8FDD3" shape=diamond style=filled]
+	N5 [label="Social Media Ads" color="#80DDEA" fillcolor="#D3F7F9" shape=database style=filled]
+	N6 [label="Ad Creative Development" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+	N7 [label="Fraud Detection in Ads" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+	N8 [label="Budget Management" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N9 [label="Psychographic Targeting" color="#80DDEA" fillcolor="#D3F7F9" shape=rect style=filled]
+	N10 [label="Native Advertising" color="#D3EB9F" fillcolor="#F8FDD3" shape=vnode_shape style=filled]
+	N11 [label="Ad Network Management" color="#80DDEA" fillcolor="#D3F7F9" shape=database style=filled]
+	N12 [label="Television Advertising" color="#90A4AE" fillcolor="#ECEFF1" shape=parallelogram style=filled]
+	S0 [label="" color="#80DDEA" fillcolor="#D3F7F9" 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="#80DDEA" fillcolor="#D3F7F9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#80DDEA" fillcolor="#D3F7F9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Privacy Concerns in Ads {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Privacy Concerns in Ads"
+		nest0_0 [label="Campaign Planning" color="#80DDEA" fillcolor="#D3F7F9" shape=document style=filled]
+		nest0_1 [label="Media Buying" color="#90A4AE" fillcolor="#ECEFF1" shape=hexagon style=filled]
+		nest0_2 [label="Landing Page Optimization" color="#D3EB9F" fillcolor="#F8FDD3" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="detects fraud" dir=forward]
+	N3 -> N4 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="creates ads" dir=forward]
+	N7 -> N8 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#90A4AE" penwidth=1.5 style=dashed label="designs interactive ads" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="targets audiences" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	M1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_192.txt b/test/diagrams/scanned_medium/diagrams_192.txt
new file mode 100644
index 0000000000000000000000000000000000000000..834f1eb2d0b5162745cb96bdf962413a0d68005a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_192.txt
@@ -0,0 +1,24 @@
+<A or B Testing for Ads, connectedTo, Ad Creative Development>
+<A or B Testing for Ads, connectedTo, Audience Segmentation for Ads>
+<Ad Creative Development, creates ads, Fraud Detection in Ads>
+<Ad Network Management, connectedTo, Television Advertising>
+<Ad Placement Optimization, connectedTo, Radio Advertising>
+<Audience Segmentation for Ads, connectedTo, Ad Creative Development>
+<Audience Segmentation for Ads, connectedTo, Interactive Ad Formats>
+<Audience Segmentation for Ads, connectedTo, Native Advertising>
+<Audience Segmentation for Ads, connectedTo, Psychographic Targeting>
+<Budget Management, designs interactive ads, Psychographic Targeting>
+<Campaign Planning, connectedTo, Media Buying>
+<Fraud Detection in Ads, connectedTo, Budget Management>
+<Fraud Detection in Ads, connectedTo, Psychographic Targeting>
+<Interactive Ad Formats, connectedTo, Ad Creative Development>
+<Interactive Ad Formats, detects fraud, Ad Placement Optimization>
+<Landing Page Optimization, connectedTo, Fraud Detection in Ads>
+<Media Buying, connectedTo, Landing Page Optimization>
+<Native Advertising, connectedTo, Ad Network Management>
+<Psychographic Targeting, targets audiences, Native Advertising>
+<Radio Advertising, connectedTo, Ad Creative Development>
+<Radio Advertising, connectedTo, Ad Network Management>
+<Radio Advertising, connectedTo, Social Media Ads>
+<Social Media Ads, connectedTo, Ad Creative Development>
+<Social Media Ads, connectedTo, Campaign Planning>
diff --git a/test/diagrams/scanned_medium/diagrams_193.dot b/test/diagrams/scanned_medium/diagrams_193.dot
new file mode 100644
index 0000000000000000000000000000000000000000..912e6496ecac1f2973f5fcc003e5b1dcead5960f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_193.dot
@@ -0,0 +1,36 @@
+digraph {
+	rankdir=LR
+	N0 [label="Security Token Offerings" color="#A188D0" fillcolor="#DACBE3" shape=parallelogram style=filled]
+	N1 [label="Sidechains and Layer 2 Solutions" color="#CD8FF2" fillcolor="#ECCFF5" shape=rectangle style=filled]
+	N2 [label="Interoperability Solutions" color="#82DAFF" fillcolor="#C8EDFF" shape=preparation style=filled]
+	N3 [label="Identity Verification on Blockchain" color="#82DAFF" fillcolor="#C8EDFF" shape=diamond style=filled]
+	N4 [label="Wallet Management" color="#A188D0" fillcolor="#DACBE3" shape=database style=filled]
+	N5 [label="Consensus Mechanism Development" color="#82DAFF" fillcolor="#C8EDFF" shape=predefinedprocess style=filled]
+	N6 [label="Enterprise Blockchain Solutions" color="#82DAFF" fillcolor="#C8EDFF" shape=database style=filled]
+	S1 [label="" color="#CD8FF2" fillcolor="#ECCFF5" 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]
+	subgraph cluster_Mining Operations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mining Operations"
+		nest0_0 [label="Regulatory Compliance for Blockchain" color="#82DAFF" fillcolor="#C8EDFF" shape=database style=filled]
+		nest0_1 [label="Healthcare Data Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=document style=filled]
+		nest0_2 [label="Security Auditing for Blockchains" color="#CD8FF2" fillcolor="#ECCFF5" shape=database style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="ensures interoperability" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#82DAFF" penwidth=1.5 style=solid label="develops DApps" dir=forward]
+	N5 -> N6 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="scales systems" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N6 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#CD8FF2" penwidth=1.5 style=dashed label="designs protocols" dir=forward]
+	M0 -> N3 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_193.txt b/test/diagrams/scanned_medium/diagrams_193.txt
new file mode 100644
index 0000000000000000000000000000000000000000..659538b893ede285410f3aeb8e4d6108e2eb27d7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_193.txt
@@ -0,0 +1,14 @@
+<Consensus Mechanism Development, connectedTo, Enterprise Blockchain Solutions>
+<Healthcare Data Management, connectedTo, Security Auditing for Blockchains>
+<Identity Verification on Blockchain, connectedTo, Consensus Mechanism Development>
+<Identity Verification on Blockchain, connectedTo, Enterprise Blockchain Solutions>
+<Identity Verification on Blockchain, connectedTo, Wallet Management>
+<Interoperability Solutions, connectedTo, Identity Verification on Blockchain>
+<Regulatory Compliance for Blockchain, scales systems, Healthcare Data Management>
+<Security Auditing for Blockchains, connectedTo, Enterprise Blockchain Solutions>
+<Security Token Offerings, designs protocols, Identity Verification on Blockchain>
+<Security Token Offerings, ensures interoperability, Sidechains and Layer 2 Solutions>
+<Sidechains and Layer 2 Solutions, connectedTo, Identity Verification on Blockchain>
+<Sidechains and Layer 2 Solutions, connectedTo, Interoperability Solutions>
+<Wallet Management, connectedTo, Regulatory Compliance for Blockchain>
+<Wallet Management, develops DApps, Consensus Mechanism Development>
diff --git a/test/diagrams/scanned_medium/diagrams_194.dot b/test/diagrams/scanned_medium/diagrams_194.dot
new file mode 100644
index 0000000000000000000000000000000000000000..38a28b3cb0e2417a360e4f588f3b39abdd6a275f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_194.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=BT
+	N0 [label="Digital Identity Management" color="#BCB88A" fillcolor="#F5F5DC" shape=rectangle style=filled]
+	N1 [label="Private Blockchain Implementation" color="#FFF8A6" fillcolor="#FFFDE0" shape=hexagon style=filled]
+	N2 [label="Mining Operations" color="#BCB88A" fillcolor="#F5F5DC" shape=vnode_shape style=filled]
+	N3 [label="Decentralized Network Design" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N4 [label="Interoperability Solutions" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N5 [label="Decentralized Applications Development" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N6 [label="Blockchain Node Operation" color="#FFF8A6" fillcolor="#FFFDE0" shape=inputoutput style=filled]
+	N7 [label="Smart Contract Development" color="#BCB88A" fillcolor="#F5F5DC" shape=inputoutput style=filled]
+	N8 [label="Healthcare Data Management" color="#FFF8A6" fillcolor="#FFFDE0" shape=database style=filled]
+	S0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" 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="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Cross_Chain Bridges {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cross_Chain Bridges"
+		nest0_0 [label="Regulatory Compliance for Blockchain" color="#FFF8A6" fillcolor="#FFFDE0" shape=parallelogram style=filled]
+		nest0_1 [label="Distributed Ledger Technology" color="#90A4AE" fillcolor="#ECEFF1" shape=inputoutput style=filled]
+		nest0_2 [label="Scalability Solutions" color="#90A4AE" fillcolor="#ECEFF1" shape=inputoutput style=filled]
+		nest0_3 [label="Public Blockchain Deployment" color="#BCB88A" fillcolor="#F5F5DC" shape=document style=filled]
+	}
+	N0 -> N1 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#BCB88A" penwidth=1.5 style=solid label="ensures interoperability" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="creates bridges" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#BCB88A" penwidth=1.5 style=dashed label="tokenizes assets" dir=forward]
+	nest0_0 -> nest0_1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#BCB88A" penwidth=1.5 style=solid label="operates nodes" dir=forward]
+	nest0_2 -> nest0_3 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N5 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#90A4AE" penwidth=1.5 style=dashed label="processes payments" dir=forward]
+	S0 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N8 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_194.txt b/test/diagrams/scanned_medium/diagrams_194.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5261091de0f5e5e0dc6fb9ff7e072036d5f0424a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_194.txt
@@ -0,0 +1,19 @@
+<Blockchain Node Operation, connectedTo, Healthcare Data Management>
+<Blockchain Node Operation, connectedTo, Smart Contract Development>
+<Decentralized Applications Development, connectedTo, Regulatory Compliance for Blockchain>
+<Decentralized Applications Development, creates bridges, Blockchain Node Operation>
+<Decentralized Network Design, connectedTo, Blockchain Node Operation>
+<Decentralized Network Design, connectedTo, Decentralized Applications Development>
+<Decentralized Network Design, connectedTo, Interoperability Solutions>
+<Digital Identity Management, connectedTo, Healthcare Data Management>
+<Digital Identity Management, connectedTo, Private Blockchain Implementation>
+<Distributed Ledger Technology, operates nodes, Scalability Solutions>
+<Interoperability Solutions, ensures interoperability, Decentralized Applications Development>
+<Mining Operations, connectedTo, Decentralized Network Design>
+<Private Blockchain Implementation, connectedTo, Decentralized Network Design>
+<Private Blockchain Implementation, connectedTo, Mining Operations>
+<Private Blockchain Implementation, processes payments, Blockchain Node Operation>
+<Public Blockchain Deployment, connectedTo, Decentralized Applications Development>
+<Regulatory Compliance for Blockchain, connectedTo, Distributed Ledger Technology>
+<Scalability Solutions, connectedTo, Public Blockchain Deployment>
+<Smart Contract Development, tokenizes assets, Healthcare Data Management>
diff --git a/test/diagrams/scanned_medium/diagrams_195.dot b/test/diagrams/scanned_medium/diagrams_195.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e57f4c419bdd7062f976ecdfd61200ef0254e3fd
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_195.dot
@@ -0,0 +1,51 @@
+digraph {
+	rankdir=TB
+	N0 [label="Security Auditing for Blockchains" color="#607D8B" fillcolor="#CFD8DC" shape=action style=filled]
+	N1 [label="Digital Identity Management" color="#607D8B" fillcolor="#CFD8DC" shape=inputoutput style=filled]
+	N2 [label="Oracles Integration" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+	N3 [label="Real Estate Tokenization" color="#CFCFCF" fillcolor="#F6F6F6" shape=parallelogram style=filled]
+	N4 [label="Interoperability Solutions" color="#EAEFA5" fillcolor="#FDFCEB" shape=rect style=filled]
+	N5 [label="Decentralized Applications Development" color="#EAEFA5" fillcolor="#FDFCEB" shape=multipledocuments style=filled]
+	N6 [label="Wallet Management" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	N7 [label="Security Token Offerings" color="#EAEFA5" fillcolor="#FDFCEB" shape=database style=filled]
+	N8 [label="Cross_Chain Bridges" color="#EAEFA5" fillcolor="#FDFCEB" shape=database style=filled]
+	N9 [label="Sidechains and Layer 2 Solutions" color="#CFCFCF" fillcolor="#F6F6F6" shape=diamond style=filled]
+	N10 [label="Decentralized Finance Protocols" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	N11 [label="Private Blockchain Implementation" color="#EAEFA5" fillcolor="#FDFCEB" shape=inputoutput 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]
+	M1 [label="" color="#607D8B" fillcolor="#CFD8DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Decentralized Network Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Decentralized Network Design"
+		nest0_0 [label="Intellectual Property Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=document style=filled]
+		nest0_1 [label="Mining Operations" color="#CFCFCF" fillcolor="#F6F6F6" shape=inputoutput style=filled]
+		nest0_2 [label="Initial Coin Offerings" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#607D8B" penwidth=1.5 style=dashed label="implements sharding" dir=forward]
+	N1 -> N2 [color="#000000" 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="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#CFCFCF" penwidth=1.5 style=dashed label="tokenizes assets" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#CFCFCF" penwidth=1.5 style=dashed label="designs protocols" dir=forward]
+	nest0_1 -> nest0_2 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed label="distributes ledgers" dir=forward]
+	nest0_2 -> N1 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N6 -> S0 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#607D8B" penwidth=1.5 style=dashed label="uses ZKPs" dir=forward]
+	M0 -> N11 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	M1 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_195.txt b/test/diagrams/scanned_medium/diagrams_195.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fccb842f9cf89fdeb39deaf3065ae0acd67267a6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_195.txt
@@ -0,0 +1,21 @@
+<Cross_Chain Bridges, connectedTo, Sidechains and Layer 2 Solutions>
+<Decentralized Applications Development, connectedTo, Wallet Management>
+<Decentralized Finance Protocols, connectedTo, Private Blockchain Implementation>
+<Digital Identity Management, connectedTo, Oracles Integration>
+<Initial Coin Offerings, connectedTo, Digital Identity Management>
+<Intellectual Property Management, designs protocols, Mining Operations>
+<Interoperability Solutions, connectedTo, Decentralized Applications Development>
+<Interoperability Solutions, connectedTo, Private Blockchain Implementation>
+<Mining Operations, connectedTo, Initial Coin Offerings>
+<Oracles Integration, connectedTo, Real Estate Tokenization>
+<Oracles Integration, distributes ledgers, Intellectual Property Management>
+<Real Estate Tokenization, connectedTo, Decentralized Applications Development>
+<Real Estate Tokenization, connectedTo, Interoperability Solutions>
+<Real Estate Tokenization, uses ZKPs, Private Blockchain Implementation>
+<Security Auditing for Blockchains, connectedTo, Decentralized Applications Development>
+<Security Auditing for Blockchains, implements sharding, Digital Identity Management>
+<Security Token Offerings, connectedTo, Cross_Chain Bridges>
+<Sidechains and Layer 2 Solutions, connectedTo, Decentralized Finance Protocols>
+<Wallet Management, connectedTo, Private Blockchain Implementation>
+<Wallet Management, connectedTo, Sidechains and Layer 2 Solutions>
+<Wallet Management, tokenizes assets, Security Token Offerings>
diff --git a/test/diagrams/scanned_medium/diagrams_196.dot b/test/diagrams/scanned_medium/diagrams_196.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b0d5ba38c4e54e2960f06645ccbe1e89027c2439
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_196.dot
@@ -0,0 +1,35 @@
+digraph {
+	rankdir=RL
+	N0 [label="Interoperability Solutions" color="#81C784" fillcolor="#F1F8E9" shape=hexagon style=filled]
+	N1 [label="Exchange Listing" color="#81C784" fillcolor="#F1F8E9" shape=vnode_shape style=filled]
+	N2 [label="Smart Contract Auditing" color="#607D8B" fillcolor="#CFD8DC" shape=inputoutput style=filled]
+	N3 [label="Cryptocurrency Education" color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+	N4 [label="Airdrop Campaigns" color="#607D8B" fillcolor="#CFD8DC" shape=document style=filled]
+	N5 [label="Market Analysis" color="#607D8B" fillcolor="#CFD8DC" shape=multipledocuments style=filled]
+	N6 [label="Decentralized Exchange Operation" color="#607D8B" fillcolor="#CFD8DC" shape=vnode_shape style=filled]
+	N7 [label="Blockchain Integration" color="#BCB88A" fillcolor="#F5F5DC" shape=rect style=filled]
+	N8 [label="Wallet Development" color="#BCB88A" fillcolor="#F5F5DC" shape=vnode_shape style=filled]
+	M0 [label="" color="#607D8B" fillcolor="#CFD8DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_KYC or AML Procedures {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="KYC or AML Procedures"
+		nest0_0 [label="Key Management" color="#607D8B" fillcolor="#CFD8DC" shape=document style=filled]
+		nest0_1 [label="Yield Farming" color="#81C784" fillcolor="#F1F8E9" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#607D8B" penwidth=1.5 style=dashed label="builds Web3 applications" dir=forward]
+	N1 -> N2 [color="#BCB88A" 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 label="facilitates trades" dir=forward]
+	N4 -> N5 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_1 [color="#607D8B" penwidth=1.5 style=solid label="designs tokens" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_196.txt b/test/diagrams/scanned_medium/diagrams_196.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e417f6e16ce2ac450583985ed6c832ec334e52f4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_196.txt
@@ -0,0 +1,14 @@
+<Airdrop Campaigns, connectedTo, Key Management>
+<Airdrop Campaigns, connectedTo, Market Analysis>
+<Blockchain Integration, connectedTo, Wallet Development>
+<Blockchain Integration, designs tokens, Yield Farming>
+<Cryptocurrency Education, facilitates trades, Airdrop Campaigns>
+<Decentralized Exchange Operation, connectedTo, Blockchain Integration>
+<Exchange Listing, connectedTo, Smart Contract Auditing>
+<Interoperability Solutions, builds Web3 applications, Exchange Listing>
+<Key Management, connectedTo, Yield Farming>
+<Market Analysis, connectedTo, Blockchain Integration>
+<Market Analysis, connectedTo, Decentralized Exchange Operation>
+<Smart Contract Auditing, connectedTo, Blockchain Integration>
+<Smart Contract Auditing, connectedTo, Cryptocurrency Education>
+<Yield Farming, connectedTo, Smart Contract Auditing>
diff --git a/test/diagrams/scanned_medium/diagrams_197.dot b/test/diagrams/scanned_medium/diagrams_197.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8d41a2f33aeb58d51f2c12c6435790cf50eb59a9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_197.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=BT
+	N0 [label="Initial Exchange Offering" color="#E91E63" fillcolor="#F8BBD0" shape=predefinedprocess style=filled]
+	N1 [label="Airdrop Campaigns" color="#E91E63" fillcolor="#F8BBD0" shape=rectangle style=filled]
+	N2 [label="Key Management" color="#E91E63" fillcolor="#F8BBD0" shape=inputoutput style=filled]
+	N3 [label="Mining Algorithm Design" color="#CB9BE1" fillcolor="#F2E6F5" shape=inputoutput style=filled]
+	N4 [label="Smart Contract Auditing" color="#81C784" fillcolor="#F1F8E9" shape=action style=filled]
+	N5 [label="Cross_chain Swaps" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+	N6 [label="Transaction Processing" color="#CB9BE1" fillcolor="#F2E6F5" shape=diamond style=filled]
+	N7 [label="Web3 Integration" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+	N8 [label="Decentralized Exchange Operation" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+	N9 [label="Venture Capital Funding" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+	N10 [label="Interoperability Solutions" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+	S0 [label="" color="#CB9BE1" fillcolor="#F2E6F5" 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]
+	M1 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Security Audits {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Security Audits"
+		nest0_0 [label="Market Analysis" color="#CB9BE1" fillcolor="#F2E6F5" shape=rectangle style=filled]
+		nest0_1 [label="Cryptocurrency Trading Bots" color="#81C784" fillcolor="#F1F8E9" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#E91E63" penwidth=1.5 style=solid label="prevents fraud" dir=forward]
+	N1 -> N2 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="audits smart contracts" dir=forward]
+	N5 -> N6 [color="#81C784" penwidth=1.5 style=solid label="designs tokenomics" dir=forward]
+	N6 -> N7 [color="#E91E63" penwidth=1.5 style=dashed label="develops exchanges" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#CB9BE1" penwidth=1.5 style=solid label="governs DAOs" dir=forward]
+	S0 -> N6 [color="#81C784" penwidth=1.5 style=dashed label="lists assets" dir=forward]
+	N0 -> M0 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#81C784" penwidth=1.5 style=dashed label="custodies assets" dir=forward]
+	N4 -> M1 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N7 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_197.txt b/test/diagrams/scanned_medium/diagrams_197.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d0529cfe083e27dc9059363a97e246dba07183ac
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_197.txt
@@ -0,0 +1,21 @@
+<Airdrop Campaigns, connectedTo, Key Management>
+<Airdrop Campaigns, connectedTo, Market Analysis>
+<Airdrop Campaigns, connectedTo, Smart Contract Auditing>
+<Airdrop Campaigns, connectedTo, Web3 Integration>
+<Airdrop Campaigns, governs DAOs, Interoperability Solutions>
+<Airdrop Campaigns, lists assets, Transaction Processing>
+<Cross_chain Swaps, designs tokenomics, Transaction Processing>
+<Cryptocurrency Trading Bots, connectedTo, Airdrop Campaigns>
+<Decentralized Exchange Operation, connectedTo, Venture Capital Funding>
+<Initial Exchange Offering, connectedTo, Smart Contract Auditing>
+<Initial Exchange Offering, prevents fraud, Airdrop Campaigns>
+<Key Management, connectedTo, Mining Algorithm Design>
+<Key Management, connectedTo, Smart Contract Auditing>
+<Market Analysis, connectedTo, Cryptocurrency Trading Bots>
+<Mining Algorithm Design, connectedTo, Smart Contract Auditing>
+<Mining Algorithm Design, custodies assets, Web3 Integration>
+<Smart Contract Auditing, audits smart contracts, Cross_chain Swaps>
+<Smart Contract Auditing, connectedTo, Web3 Integration>
+<Transaction Processing, develops exchanges, Web3 Integration>
+<Venture Capital Funding, connectedTo, Interoperability Solutions>
+<Web3 Integration, connectedTo, Decentralized Exchange Operation>
diff --git a/test/diagrams/scanned_medium/diagrams_198.dot b/test/diagrams/scanned_medium/diagrams_198.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7a55c9af52c3a1b499f5636da1d0cf0daf2a1311
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_198.dot
@@ -0,0 +1,38 @@
+digraph {
+	rankdir=RL
+	N0 [label="Decentralized Autonomous Organizations" color="#A1D7CD" fillcolor="#EDF5F3" shape=preparation style=filled]
+	N1 [label="Token Generation Event" color="#A1D7CD" fillcolor="#EDF5F3" shape=database style=filled]
+	N2 [label="Fraud Prevention" color="#FFF8A6" fillcolor="#FFFDE0" shape=multipledocuments style=filled]
+	N3 [label="Stablecoin Design" color="#A1D7CD" fillcolor="#EDF5F3" shape=database style=filled]
+	N4 [label="Security Audits" color="#FFF8A6" fillcolor="#FFFDE0" shape=action style=filled]
+	N5 [label="Tax Reporting for Crypto" color="#E91E63" fillcolor="#FCE4EC" shape=multipledocuments style=filled]
+	N6 [label="Cross_chain Swaps" color="#E91E63" fillcolor="#FCE4EC" shape=database style=filled]
+	N7 [label="Cryptocurrency Trading Bots" color="#E91E63" fillcolor="#FCE4EC" shape=inputoutput style=filled]
+	N8 [label="Wallet Development" color="#A1D7CD" fillcolor="#EDF5F3" shape=hexagon style=filled]
+	S0 [label="" color="#A1D7CD" fillcolor="#EDF5F3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#E91E63" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Web3 Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Web3 Integration"
+		nest0_0 [label="GameFi Development" color="#FFF8A6" fillcolor="#FFFDE0" shape=rectangle style=filled]
+		nest0_1 [label="NFT Marketplace Development" color="#A1D7CD" fillcolor="#EDF5F3" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFF8A6" penwidth=1.5 style=dashed label="performs KYCs" dir=forward]
+	N4 -> N5 [color="#E91E63" penwidth=1.5 style=dashed label="creates coins" dir=forward]
+	N5 -> N6 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="manages TGEs" dir=forward]
+	nest0_0 -> nest0_1 [color="#E91E63" penwidth=1.5 style=dashed label="enables swaps" dir=forward]
+	N2 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N4 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N2 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#FFF8A6" penwidth=1.5 style=solid label="stakes assets" dir=forward]
+	N0 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#E91E63" penwidth=1.5 style=solid label="lists assets" dir=forward]
+	S1 -> N5 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_198.txt b/test/diagrams/scanned_medium/diagrams_198.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ef26a35acdb54a2ab8a181181db1ffe6191f8a5c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_198.txt
@@ -0,0 +1,15 @@
+<Cross_chain Swaps, connectedTo, Cryptocurrency Trading Bots>
+<Cryptocurrency Trading Bots, manages TGEs, Wallet Development>
+<Decentralized Autonomous Organizations, connectedTo, Fraud Prevention>
+<Decentralized Autonomous Organizations, connectedTo, Tax Reporting for Crypto>
+<Decentralized Autonomous Organizations, connectedTo, Token Generation Event>
+<Decentralized Autonomous Organizations, lists assets, Cryptocurrency Trading Bots>
+<Decentralized Autonomous Organizations, stakes assets, Security Audits>
+<Fraud Prevention, connectedTo, GameFi Development>
+<Fraud Prevention, connectedTo, Stablecoin Design>
+<GameFi Development, enables swaps, NFT Marketplace Development>
+<NFT Marketplace Development, connectedTo, Security Audits>
+<Security Audits, creates coins, Tax Reporting for Crypto>
+<Stablecoin Design, performs KYCs, Security Audits>
+<Tax Reporting for Crypto, connectedTo, Cross_chain Swaps>
+<Token Generation Event, connectedTo, Fraud Prevention>
diff --git a/test/diagrams/scanned_medium/diagrams_199.dot b/test/diagrams/scanned_medium/diagrams_199.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ce395b694ca86aa56baf762c1435a3efa292d78f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_199.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=LR
+	N0 [label="Financial Projection Analysis" color="#4DB6AC" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	N1 [label="Funding Period Management" color="#4DB6AC" fillcolor="#E0F2F1" shape=multipledocuments style=filled]
+	N2 [label="Donation_Based Crowdfunding" color="#4DB6AC" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N3 [label="Escrow Management" color="#4DB6AC" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N4 [label="Fulfillment Planning" color="#AF56A6" fillcolor="#DDCEDD" shape=action style=filled]
+	N5 [label="Shareholder Management" color="#4DB6AC" fillcolor="#E0F2F1" shape=rect style=filled]
+	N6 [label="Press Outreach" color="#9C27B0" fillcolor="#E1BEE7" shape=action style=filled]
+	N7 [label="Payment Processing" color="#9C27B0" fillcolor="#E1BEE7" shape=database style=filled]
+	N8 [label="International Crowdfunding" color="#4DB6AC" fillcolor="#E0F2F1" shape=diamond style=filled]
+	N9 [label="Reward_Based Crowdfunding" color="#9C27B0" fillcolor="#E1BEE7" shape=diamond style=filled]
+	N10 [label="Success Fee Structures" color="#4DB6AC" fillcolor="#E0F2F1" shape=database style=filled]
+	N11 [label="Logistics for Rewards" color="#AF56A6" fillcolor="#DDCEDD" shape=preparation style=filled]
+	S0 [label="" color="#9C27B0" fillcolor="#E1BEE7" 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]
+	subgraph cluster_Goal Setting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Goal Setting"
+		nest0_0 [label="Debt Crowdfunding" color="#AF56A6" fillcolor="#DDCEDD" shape=document style=filled]
+		nest0_1 [label="Social Media Promotion" color="#9C27B0" fillcolor="#E1BEE7" shape=rectangle style=filled]
+		nest0_2 [label="Legal Compliance" color="#AF56A6" fillcolor="#DDCEDD" shape=rect style=filled]
+		nest0_3 [label="Securities Regulations Adherence" color="#4DB6AC" fillcolor="#E0F2F1" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#4DB6AC" 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=dashed label="plans promotions" dir=forward]
+	N3 -> N4 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="funds real estate" dir=forward]
+	N5 -> N6 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="vets projects" dir=forward]
+	N8 -> N9 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#4DB6AC" penwidth=1.5 style=solid label="manages shareholders" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#9C27B0" penwidth=1.5 style=solid label="verifies identities" dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest0_0 [color="#9C27B0" penwidth=1.5 style=dashed label="manages debt" dir=forward]
+	nest0_3 -> N5 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#AF56A6" penwidth=1.5 style=dashed label="sends emails" dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N11 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_199.txt b/test/diagrams/scanned_medium/diagrams_199.txt
new file mode 100644
index 0000000000000000000000000000000000000000..625cabd604a0929f7f18808ebcd9c3ec6f6cfb03
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_199.txt
@@ -0,0 +1,20 @@
+<Debt Crowdfunding, connectedTo, Social Media Promotion>
+<Donation_Based Crowdfunding, plans promotions, Escrow Management>
+<Escrow Management, connectedTo, Fulfillment Planning>
+<Financial Projection Analysis, connectedTo, Funding Period Management>
+<Financial Projection Analysis, connectedTo, Logistics for Rewards>
+<Financial Projection Analysis, connectedTo, Payment Processing>
+<Financial Projection Analysis, sends emails, Shareholder Management>
+<Fulfillment Planning, funds real estate, Shareholder Management>
+<Funding Period Management, connectedTo, Donation_Based Crowdfunding>
+<International Crowdfunding, connectedTo, Reward_Based Crowdfunding>
+<Legal Compliance, connectedTo, Securities Regulations Adherence>
+<Payment Processing, vets projects, International Crowdfunding>
+<Press Outreach, connectedTo, Payment Processing>
+<Reward_Based Crowdfunding, manages shareholders, Success Fee Structures>
+<Securities Regulations Adherence, connectedTo, Shareholder Management>
+<Shareholder Management, connectedTo, Logistics for Rewards>
+<Shareholder Management, connectedTo, Press Outreach>
+<Social Media Promotion, verifies identities, Legal Compliance>
+<Success Fee Structures, connectedTo, Logistics for Rewards>
+<Success Fee Structures, manages debt, Debt Crowdfunding>
diff --git a/test/diagrams/scanned_medium/diagrams_2.dot b/test/diagrams/scanned_medium/diagrams_2.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f25aa1a2d658fefd87473a2b0bd72706a3f90954
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_2.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=LR
+	N0 [label="Mental Health Assessment" color="#2196F3" fillcolor="#BBDEFB" shape=diamond style=filled]
+	N1 [label="Medical Record Keeping" color="#4CAF50" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	N2 [label="Insurance Claim" color="#4CAF50" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N3 [label="Triage" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	N4 [label="Referral" color="#2196F3" fillcolor="#BBDEFB" shape=ellipse style=filled]
+	N5 [label="Dental Check_up" color="#607D8B" fillcolor="#CFD8DC" shape=diamond style=filled]
+	N6 [label="Emergency Response" color="#607D8B" fillcolor="#CFD8DC" shape=document style=filled]
+	N7 [label="Allergy Test" color="#4CAF50" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	N0 -> N1 [color="#2196F3" 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 label="refers" dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=dashed label="discharges" dir=forward]
+	N4 -> N5 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#2196F3" penwidth=1.5 style=solid label="monitors" dir=forward]
+	N6 -> N7 [color="#4CAF50" penwidth=1.5 style=solid label="collects" dir=forward]
+	N1 -> N5 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N7 [color="#000000" penwidth=1.5 style=solid label="assesses" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_2.txt b/test/diagrams/scanned_medium/diagrams_2.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4aa9f0b6bfe37d756df554d307b873f1128253d0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_2.txt
@@ -0,0 +1,9 @@
+<Dental Check_up, monitors, Emergency Response>
+<Emergency Response, collects, Allergy Test>
+<Insurance Claim, refers, Triage>
+<Medical Record Keeping, connectedTo, Dental Check_up>
+<Medical Record Keeping, connectedTo, Insurance Claim>
+<Mental Health Assessment, connectedTo, Medical Record Keeping>
+<Referral, connectedTo, Dental Check_up>
+<Triage, assesses, Allergy Test>
+<Triage, discharges, Referral>
diff --git a/test/diagrams/scanned_medium/diagrams_20.dot b/test/diagrams/scanned_medium/diagrams_20.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a32ebb59c396e92e43f4cef47778883df70ae764
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_20.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=LR
+	N0 [label="Mission Debriefing" color="#FFE470" fillcolor="#FFFAE0" shape=rect style=filled]
+	N1 [label="Aircraft Manufacturing" color="#FFE470" fillcolor="#FFFAE0" shape=preparation style=filled]
+	N2 [label="Mission Planning" color="#A2D0FF" fillcolor="#E8F0FF" shape=vnode_shape style=filled]
+	N3 [label="Telemetry Setup" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+	N4 [label="Airframe Assembly" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+	N5 [label="Engine Overhaul" color="#FFE470" fillcolor="#FFFAE0" shape=inputoutput style=filled]
+	N6 [label="Launch Execution" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N7 [label="Rocket Assembly" color="#FFE470" fillcolor="#FFFAE0" shape=action style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFE470" penwidth=1.5 style=solid label="simulates" dir=forward]
+	N2 -> N3 [color="#FFE470" penwidth=1.5 style=dashed label="deploys" dir=forward]
+	N3 -> N4 [color="#A2D0FF" penwidth=1.5 style=solid label="designs" dir=forward]
+	N4 -> N5 [color="#A2D0FF" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N5 -> N6 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N2 [color="#BA68C8" penwidth=1.5 style=solid label="regulates" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_20.txt b/test/diagrams/scanned_medium/diagrams_20.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c85791656e5604bd314f992950feffe72a300b82
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_20.txt
@@ -0,0 +1,8 @@
+<Aircraft Manufacturing, simulates, Mission Planning>
+<Airframe Assembly, optimizes, Engine Overhaul>
+<Engine Overhaul, connectedTo, Launch Execution>
+<Engine Overhaul, regulates, Mission Planning>
+<Launch Execution, connectedTo, Rocket Assembly>
+<Mission Debriefing, connectedTo, Aircraft Manufacturing>
+<Mission Planning, deploys, Telemetry Setup>
+<Telemetry Setup, designs, Airframe Assembly>
diff --git a/test/diagrams/scanned_medium/diagrams_200.dot b/test/diagrams/scanned_medium/diagrams_200.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a350a87df867b7ff39cb0a019b470a5a5c6c9dae
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_200.dot
@@ -0,0 +1,36 @@
+digraph {
+	rankdir=BT
+	N0 [label="Investor Verification" color="#81C784" fillcolor="#F1F8E9" shape=hexagon style=filled]
+	N1 [label="Platform Fee Management" color="#81C784" fillcolor="#F1F8E9" shape=document style=filled]
+	N2 [label="Post_Campaign Reporting" color="#FFE470" fillcolor="#FFFAE0" shape=diamond style=filled]
+	N3 [label="Shareholder Management" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	N4 [label="Video Production for Campaigns" color="#90A4AE" fillcolor="#ECEFF1" shape=hexagon style=filled]
+	N5 [label="Pitch Deck Preparation" color="#90A4AE" fillcolor="#ECEFF1" shape=multipledocuments style=filled]
+	S0 [label="" color="#81C784" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFE470" fillcolor="#FFFAE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Legal Compliance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Legal Compliance"
+		nest0_0 [label="Reward Tier Design" color="#90A4AE" fillcolor="#ECEFF1" shape=parallelogram style=filled]
+		nest0_1 [label="Intellectual Property Protection" color="#90A4AE" fillcolor="#ECEFF1" shape=multipledocuments style=filled]
+		nest0_2 [label="Reward_Based Crowdfunding" color="#FFE470" fillcolor="#FFFAE0" shape=preparation style=filled]
+		nest0_3 [label="Equity Crowdfunding" color="#FFE470" fillcolor="#FFFAE0" shape=document style=filled]
+	}
+	N0 -> N1 [color="#81C784" penwidth=1.5 style=solid label="handles logistics" dir=forward]
+	N1 -> N2 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFE470" penwidth=1.5 style=dashed label="creates campaigns" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="funds real estate" dir=forward]
+	nest0_0 -> nest0_1 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N3 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#90A4AE" penwidth=1.5 style=solid label="prepares pitches" dir=forward]
+	S0 -> N5 [color="#FFE470" penwidth=1.5 style=solid label="generates reports" dir=forward]
+	N0 -> M1 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_200.txt b/test/diagrams/scanned_medium/diagrams_200.txt
new file mode 100644
index 0000000000000000000000000000000000000000..71d56c7c2428c9a6218d78d32aecd7fc1c34f355
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_200.txt
@@ -0,0 +1,14 @@
+<Equity Crowdfunding, connectedTo, Shareholder Management>
+<Intellectual Property Protection, connectedTo, Reward_Based Crowdfunding>
+<Investor Verification, connectedTo, Shareholder Management>
+<Investor Verification, handles logistics, Platform Fee Management>
+<Platform Fee Management, connectedTo, Post_Campaign Reporting>
+<Platform Fee Management, connectedTo, Shareholder Management>
+<Post_Campaign Reporting, connectedTo, Shareholder Management>
+<Post_Campaign Reporting, generates reports, Pitch Deck Preparation>
+<Post_Campaign Reporting, prepares pitches, Video Production for Campaigns>
+<Reward Tier Design, connectedTo, Intellectual Property Protection>
+<Reward_Based Crowdfunding, connectedTo, Equity Crowdfunding>
+<Shareholder Management, creates campaigns, Video Production for Campaigns>
+<Video Production for Campaigns, connectedTo, Reward Tier Design>
+<Video Production for Campaigns, funds real estate, Pitch Deck Preparation>
diff --git a/test/diagrams/scanned_medium/diagrams_201.dot b/test/diagrams/scanned_medium/diagrams_201.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b18d689012b64fdc3c498bb94808586fbdaddc69
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_201.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=BT
+	N0 [label="Campaign Creation" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	N1 [label="Community Building" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	N2 [label="Product Development Lifecycle" color="#388E3C" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	N3 [label="Investor Relations" color="#388E3C" fillcolor="#C8E6C9" shape=action style=filled]
+	N4 [label="Investor Verification" color="#388E3C" fillcolor="#C8E6C9" shape=document style=filled]
+	N5 [label="Real Estate Crowdfunding" color="#81C784" fillcolor="#F1F8E9" shape=multipledocuments style=filled]
+	N6 [label="Logistics for Rewards" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N7 [label="Manufacturing Planning" color="#81C784" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N8 [label="Success Fee Structures" color="#388E3C" fillcolor="#C8E6C9" shape=document style=filled]
+	N9 [label="Video Production for Campaigns" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N10 [label="Equity Crowdfunding" color="#81C784" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N11 [label="Press Outreach" color="#9FA9E1" fillcolor="#D6D9F0" shape=predefinedprocess style=filled]
+	N12 [label="International Crowdfunding" color="#9FA9E1" fillcolor="#D6D9F0" shape=database style=filled]
+	S0 [label="" color="#9FA9E1" fillcolor="#D6D9F0" 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]
+	subgraph cluster_Financial Projection Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Financial Projection Analysis"
+		nest0_0 [label="Customer Support for Backers" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+		nest0_1 [label="Funding Period Management" color="#81C784" fillcolor="#F1F8E9" shape=diamond style=filled]
+		nest0_2 [label="Goal Setting" color="#9FA9E1" fillcolor="#D6D9F0" shape=rectangle style=filled]
+		nest0_3 [label="Due Diligence for Projects" color="#81C784" fillcolor="#F1F8E9" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#81C784" penwidth=1.5 style=solid 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="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#9FA9E1" penwidth=1.5 style=dashed label="measures success" dir=forward]
+	N10 -> N11 [color="#81C784" penwidth=1.5 style=solid label="facilitates international campaigns" dir=forward]
+	N11 -> N12 [color="#9FA9E1" penwidth=1.5 style=dashed label="verifies identities" dir=forward]
+	nest0_0 -> nest0_1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#9FA9E1" penwidth=1.5 style=dashed label="adheres to regulations" dir=forward]
+	nest0_2 -> nest0_3 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N5 [color="#000000" penwidth=1.5 style=dashed label="processes payments" dir=forward]
+	N3 -> S0 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M0 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N10 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_202.dot b/test/diagrams/scanned_medium/diagrams_202.dot
new file mode 100644
index 0000000000000000000000000000000000000000..81d449f77166cc417288347bb228779461384cfe
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_202.dot
@@ -0,0 +1,45 @@
+digraph {
+	rankdir=LR
+	N0 [label="Retail IoT" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	N1 [label="Device Prototyping" color="#AF56A6" fillcolor="#DDCEDD" shape=parallelogram style=filled]
+	N2 [label="Gateway Development" color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+	N3 [label="Wearable Technology" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+	N4 [label="Data Analysis in Cloud" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+	N5 [label="Environmental Monitoring" color="#AF56A6" fillcolor="#DDCEDD" shape=document style=filled]
+	N6 [label="Data Processing at Edge" color="#FFEB3B" fillcolor="#FFF9C4" shape=preparation style=filled]
+	N7 [label="Blockchain for IoT Security" color="#FFEB3B" fillcolor="#FFF9C4" shape=rectangle style=filled]
+	N8 [label="Device Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=action style=filled]
+	N9 [label="Data Collection" color="#FFEB3B" fillcolor="#FFF9C4" shape=predefinedprocess style=filled]
+	N10 [label="Firmware Updates" color="#FFEB3B" fillcolor="#FFF9C4" shape=vnode_shape style=filled]
+	N11 [label="Power Management for Devices" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	S0 [label="" color="#FFEB3B" fillcolor="#FFF9C4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFEB3B" fillcolor="#FFF9C4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Connected Vehicles {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Connected Vehicles"
+		nest0_0 [label="Energy Management Systems" color="#FFEB3B" fillcolor="#FFF9C4" shape=inputoutput style=filled]
+		nest0_1 [label="Predictive Maintenance" color="#92C79A" fillcolor="#E8F0EA" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="deploys gateways" dir=forward]
+	N2 -> N3 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#92C79A" penwidth=1.5 style=solid label="certifies devices" dir=forward]
+	N6 -> N7 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#AF56A6" penwidth=1.5 style=dashed label="designs UIs" dir=forward]
+	nest0_1 -> N4 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#AF56A6" penwidth=1.5 style=solid label="manages power" dir=forward]
+	N1 -> M0 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	M0 -> N4 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_202.txt b/test/diagrams/scanned_medium/diagrams_202.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0ea2ec4f284f4ef0f8888b9af2a171549b215503
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_202.txt
@@ -0,0 +1,19 @@
+<Blockchain for IoT Security, connectedTo, Device Management>
+<Data Analysis in Cloud, connectedTo, Environmental Monitoring>
+<Data Collection, connectedTo, Firmware Updates>
+<Data Processing at Edge, connectedTo, Blockchain for IoT Security>
+<Device Management, connectedTo, Data Collection>
+<Device Prototyping, connectedTo, Data Analysis in Cloud>
+<Device Prototyping, deploys gateways, Gateway Development>
+<Device Prototyping, designs UIs, Energy Management Systems>
+<Energy Management Systems, connectedTo, Predictive Maintenance>
+<Environmental Monitoring, certifies devices, Data Processing at Edge>
+<Firmware Updates, connectedTo, Power Management for Devices>
+<Gateway Development, connectedTo, Data Analysis in Cloud>
+<Gateway Development, connectedTo, Wearable Technology>
+<Predictive Maintenance, connectedTo, Data Analysis in Cloud>
+<Retail IoT, connectedTo, Device Prototyping>
+<Retail IoT, manages power, Data Analysis in Cloud>
+<Wearable Technology, connectedTo, Data Analysis in Cloud>
+<Wearable Technology, connectedTo, Data Collection>
+<Wearable Technology, connectedTo, Firmware Updates>
diff --git a/test/diagrams/scanned_medium/diagrams_203.txt b/test/diagrams/scanned_medium/diagrams_203.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8a91ff0b4057c6832a44002e37bd8859d109660c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_203.txt
@@ -0,0 +1,19 @@
+<Compliance with IoT Regulations, automates homes, Transportation IoT>
+<Compliance with IoT Regulations, connectedTo, Device Management>
+<Compliance with IoT Regulations, connectedTo, Real_time Data Streaming>
+<Compliance with IoT Regulations, connectedTo, Remote Monitoring and Control>
+<Device Management, connectedTo, Remote Monitoring and Control>
+<Device Prototyping, connectedTo, Real_time Data Streaming>
+<Device Prototyping, manages power, IoT Device Certification>
+<Energy Management Systems, connectedTo, Transportation IoT>
+<Firmware Updates, connectedTo, Device Prototyping>
+<IoT Device Certification, processes streams, Sensor Integration>
+<Power Management for Devices, develops solutions, Energy Management Systems>
+<Real_time Data Streaming, connectedTo, Device Management>
+<Remote Monitoring and Control, connectedTo, Power Management for Devices>
+<Retail IoT, connectedTo, Wearable Technology>
+<Sensor Integration, connectedTo, Compliance with IoT Regulations>
+<Sensor Integration, connectedTo, Retail IoT>
+<Sensor Integration, manages networks, Real_time Data Streaming>
+<Transportation IoT, manages deployments, Security Implementation>
+<Wearable Technology, integrates sensors, Transportation IoT>
diff --git a/test/diagrams/scanned_medium/diagrams_204.dot b/test/diagrams/scanned_medium/diagrams_204.dot
new file mode 100644
index 0000000000000000000000000000000000000000..16d1c9ba7637a7de9e6723e7bc55982607bae07c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_204.dot
@@ -0,0 +1,38 @@
+digraph {
+	rankdir=BT
+	N0 [label="Firmware Updates" color="#FFCC7A" fillcolor="#FFF6D9" shape=database style=filled]
+	N1 [label="Data Privacy in IoT" color="#FFCC7A" fillcolor="#FFF6D9" shape=database style=filled]
+	N2 [label="Environmental Monitoring" color="#D3EB9F" fillcolor="#F8FDD3" shape=preparation style=filled]
+	N3 [label="Supply Chain Optimization" color="#FFCC7A" fillcolor="#FFF6D9" shape=multipledocuments style=filled]
+	N4 [label="Wearable Technology" color="#FFCC7A" fillcolor="#FFF6D9" shape=action style=filled]
+	N5 [label="Edge Computing for IoT" color="#00BCD4" fillcolor="#E0F7FA" shape=preparation style=filled]
+	S1 [label="" color="#FFCC7A" fillcolor="#FFF6D9" 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_Industrial IoT {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Industrial IoT"
+		nest0_0 [label="Energy Management Systems" color="#FFCC7A" fillcolor="#FFF6D9" shape=action style=filled]
+		nest0_1 [label="Device Management" color="#00BCD4" fillcolor="#E0F7FA" shape=rect style=filled]
+		nest0_2 [label="Smart Manufacturing" color="#D3EB9F" fillcolor="#F8FDD3" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#00BCD4" penwidth=1.5 style=dashed label="uses blockchain" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="enables wearables" dir=forward]
+	N3 -> N4 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N4 [color="#00BCD4" penwidth=1.5 style=solid label="builds smart cities" dir=forward]
+	N0 -> S1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#FFCC7A" penwidth=1.5 style=dashed label="performs OTAs" dir=forward]
+	S1 -> N2 [color="#FFCC7A" penwidth=1.5 style=dashed label="deploys gateways" dir=forward]
+	N2 -> M0 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	M0 -> N4 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_204.txt b/test/diagrams/scanned_medium/diagrams_204.txt
new file mode 100644
index 0000000000000000000000000000000000000000..39d7a0c03b20267c3eeaa8a0a1c918b2e5e21471
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_204.txt
@@ -0,0 +1,15 @@
+<Data Privacy in IoT, connectedTo, Environmental Monitoring>
+<Data Privacy in IoT, connectedTo, Supply Chain Optimization>
+<Data Privacy in IoT, connectedTo, Wearable Technology>
+<Device Management, connectedTo, Smart Manufacturing>
+<Energy Management Systems, connectedTo, Device Management>
+<Environmental Monitoring, connectedTo, Wearable Technology>
+<Environmental Monitoring, enables wearables, Supply Chain Optimization>
+<Firmware Updates, connectedTo, Supply Chain Optimization>
+<Firmware Updates, deploys gateways, Environmental Monitoring>
+<Firmware Updates, performs OTAs, Edge Computing for IoT>
+<Firmware Updates, uses blockchain, Data Privacy in IoT>
+<Smart Manufacturing, builds smart cities, Wearable Technology>
+<Supply Chain Optimization, connectedTo, Energy Management Systems>
+<Supply Chain Optimization, connectedTo, Wearable Technology>
+<Wearable Technology, connectedTo, Edge Computing for IoT>
diff --git a/test/diagrams/scanned_medium/diagrams_205.dot b/test/diagrams/scanned_medium/diagrams_205.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d595b0f9506747d0651c9296cbe255f065c981b6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_205.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=LR
+	N0 [label="Edge Computing Hardware Selection" color="#A1D7CD" fillcolor="#EDF5F3" shape=diamond style=filled]
+	N1 [label="Virtualization at Edge" color="#81C784" fillcolor="#F1F8E9" shape=inputoutput style=filled]
+	N2 [label="Healthcare Edge Computing" color="#A1D7CD" fillcolor="#EDF5F3" shape=hexagon style=filled]
+	N3 [label="Event_Driven Architectures at Edge" color="#7986CB" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	N4 [label="Edge Device Provisioning" color="#7986CB" fillcolor="#E8EAF6" shape=database style=filled]
+	N5 [label="Bandwidth Optimization" color="#7986CB" fillcolor="#E8EAF6" shape=document style=filled]
+	N6 [label="Network Optimization for Edge" color="#81C784" fillcolor="#F1F8E9" shape=multipledocuments style=filled]
+	N7 [label="Resource Management at Edge" color="#7986CB" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N8 [label="Edge Data Processing" 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]
+	M0 [label="" color="#A1D7CD" fillcolor="#EDF5F3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Telecom Edge Computing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Telecom Edge Computing"
+		nest0_0 [label="Real_time Analytics at Edge" color="#A1D7CD" fillcolor="#EDF5F3" shape=preparation style=filled]
+		nest0_1 [label="Offline Functionality" color="#7986CB" fillcolor="#E8EAF6" shape=rect style=filled]
+		nest0_2 [label="Edge_to_Cloud Data Transfer Optimization" color="#7986CB" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+		nest0_3 [label="Retail Edge Computing" color="#7986CB" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#7986CB" penwidth=1.5 style=dashed label="filters data" dir=forward]
+	N6 -> N7 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed label="builds smart cities" dir=forward]
+	N2 -> nest0_0 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N7 [color="#A1D7CD" penwidth=1.5 style=dashed label="powers healthcare devices" dir=forward]
+	N3 -> S0 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=solid label="performs real_time analytics" dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" 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_medium/diagrams_205.txt b/test/diagrams/scanned_medium/diagrams_205.txt
new file mode 100644
index 0000000000000000000000000000000000000000..158bd1d3fc930c649d9f103e3dff5e30774e2205
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_205.txt
@@ -0,0 +1,17 @@
+<Bandwidth Optimization, filters data, Network Optimization for Edge>
+<Edge Computing Hardware Selection, connectedTo, Event_Driven Architectures at Edge>
+<Edge Computing Hardware Selection, connectedTo, Virtualization at Edge>
+<Edge Device Provisioning, connectedTo, Bandwidth Optimization>
+<Edge_to_Cloud Data Transfer Optimization, builds smart cities, Retail Edge Computing>
+<Event_Driven Architectures at Edge, connectedTo, Edge Data Processing>
+<Event_Driven Architectures at Edge, connectedTo, Edge Device Provisioning>
+<Event_Driven Architectures at Edge, performs real_time analytics, Bandwidth Optimization>
+<Healthcare Edge Computing, connectedTo, Event_Driven Architectures at Edge>
+<Healthcare Edge Computing, connectedTo, Real_time Analytics at Edge>
+<Network Optimization for Edge, connectedTo, Resource Management at Edge>
+<Offline Functionality, connectedTo, Edge_to_Cloud Data Transfer Optimization>
+<Real_time Analytics at Edge, connectedTo, Offline Functionality>
+<Resource Management at Edge, connectedTo, Edge Data Processing>
+<Retail Edge Computing, powers healthcare devices, Resource Management at Edge>
+<Virtualization at Edge, connectedTo, Event_Driven Architectures at Edge>
+<Virtualization at Edge, connectedTo, Healthcare Edge Computing>
diff --git a/test/diagrams/scanned_medium/diagrams_206.dot b/test/diagrams/scanned_medium/diagrams_206.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ed14e0791ca110a93d13a9d5870d63acfee9ef29
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_206.dot
@@ -0,0 +1,40 @@
+digraph {
+	rankdir=LR
+	N0 [label="Containerization at Edge" color="#CD8FF2" fillcolor="#ECCFF5" shape=diamond style=filled]
+	N1 [label="Remote Device Management" color="#F7BEE0" fillcolor="#FAEBF3" shape=preparation style=filled]
+	N2 [label="Edge Computing Hardware Selection" color="#6FE1D5" fillcolor="#C9EFEC" shape=document style=filled]
+	N3 [label="Security for Edge Devices" color="#CD8FF2" fillcolor="#ECCFF5" shape=hexagon style=filled]
+	N4 [label="Resource Management at Edge" color="#CD8FF2" fillcolor="#ECCFF5" shape=hexagon style=filled]
+	N5 [label="Offline Functionality" color="#CD8FF2" fillcolor="#ECCFF5" shape=predefinedprocess style=filled]
+	N6 [label="Connectivity to Cloud" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+	S0 [label="" color="#CD8FF2" fillcolor="#ECCFF5" 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="#CD8FF2" fillcolor="#ECCFF5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Edge Data Processing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Edge Data Processing"
+		nest0_0 [label="Edge API Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=rect style=filled]
+		nest0_1 [label="Power Consumption Optimization" color="#CD8FF2" fillcolor="#ECCFF5" shape=inputoutput style=filled]
+		nest0_2 [label="Microservices on Edge Devices" color="#F7BEE0" fillcolor="#FAEBF3" shape=box style=filled]
+	}
+	N0 -> N1 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#CD8FF2" penwidth=1.5 style=solid label="provides fault tolerance" dir=forward]
+	N2 -> N3 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#F7BEE0" 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 label="provisions resources" dir=forward]
+	N5 -> nest0_0 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N4 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#6FE1D5" penwidth=1.5 style=solid label="performs real_time analytics" dir=forward]
+	N3 -> S1 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#6FE1D5" penwidth=1.5 style=dashed label="develops applications" dir=forward]
+	N1 -> M0 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_206.txt b/test/diagrams/scanned_medium/diagrams_206.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fe90eb94c345b0b28afc0f060e99681a3bb8bcb4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_206.txt
@@ -0,0 +1,15 @@
+<Containerization at Edge, connectedTo, Offline Functionality>
+<Containerization at Edge, connectedTo, Remote Device Management>
+<Edge API Management, connectedTo, Power Consumption Optimization>
+<Edge Computing Hardware Selection, connectedTo, Security for Edge Devices>
+<Microservices on Edge Devices, connectedTo, Resource Management at Edge>
+<Offline Functionality, connectedTo, Connectivity to Cloud>
+<Offline Functionality, connectedTo, Edge API Management>
+<Power Consumption Optimization, provisions resources, Microservices on Edge Devices>
+<Remote Device Management, connectedTo, Offline Functionality>
+<Remote Device Management, provides fault tolerance, Edge Computing Hardware Selection>
+<Resource Management at Edge, connectedTo, Offline Functionality>
+<Security for Edge Devices, connectedTo, Offline Functionality>
+<Security for Edge Devices, connectedTo, Resource Management at Edge>
+<Security for Edge Devices, develops applications, Connectivity to Cloud>
+<Security for Edge Devices, performs real_time analytics, Connectivity to Cloud>
diff --git a/test/diagrams/scanned_medium/diagrams_207.dot b/test/diagrams/scanned_medium/diagrams_207.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5bd27987c3a843ac8ac849fe3ad74219d16b2023
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_207.dot
@@ -0,0 +1,37 @@
+digraph {
+	rankdir=RL
+	N0 [label="Edge Device Deployment" color="#26A69A" fillcolor="#E0F2F1" shape=rect style=filled]
+	N1 [label="Edge Device Analytics" color="#26A69A" fillcolor="#E0F2F1" shape=action style=filled]
+	N2 [label="Edge Gateway Management" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N3 [label="Edge Data Processing" color="#FFC085" fillcolor="#FFDAB9" shape=preparation style=filled]
+	N4 [label="Industrial Edge Computing" color="#26A69A" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N5 [label="Offline Functionality" color="#92C79A" fillcolor="#E8F0EA" shape=box style=filled]
+	N6 [label="Resource Management at Edge" color="#92C79A" fillcolor="#E8F0EA" shape=predefinedprocess style=filled]
+	S0 [label="" color="#FFC085" fillcolor="#FFDAB9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Data Filtering at Edge {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Data Filtering at Edge"
+		nest0_0 [label="Power Consumption Optimization" color="#FFC085" fillcolor="#FFDAB9" shape=inputoutput style=filled]
+		nest0_1 [label="Healthcare Edge Computing" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+		nest0_2 [label="Security for Edge Devices" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+		nest0_3 [label="Virtualization at Edge" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	}
+	N0 -> N1 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFC085" 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="#26A69A" penwidth=1.5 style=solid label="provisions resources" dir=forward]
+	nest0_2 -> nest0_3 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N2 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N3 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#92C79A" penwidth=1.5 style=solid label="manages distributed systems" dir=forward]
+	nest0_2 -> N4 [color="#FFC085" penwidth=1.5 style=solid label="designs architectures" dir=forward]
+	N5 -> N2 [color="#000000" penwidth=1.5 style=solid label="filters data" dir=forward]
+	nest0_1 -> N1 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_207.txt b/test/diagrams/scanned_medium/diagrams_207.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1f8f89b3bc98ecc21a06bbf4f73ee2d067596bcf
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_207.txt
@@ -0,0 +1,16 @@
+<Edge Data Processing, connectedTo, Industrial Edge Computing>
+<Edge Data Processing, connectedTo, Power Consumption Optimization>
+<Edge Device Analytics, connectedTo, Edge Gateway Management>
+<Edge Device Deployment, connectedTo, Edge Data Processing>
+<Edge Device Deployment, connectedTo, Edge Device Analytics>
+<Edge Device Deployment, manages distributed systems, Industrial Edge Computing>
+<Edge Gateway Management, connectedTo, Edge Data Processing>
+<Healthcare Edge Computing, connectedTo, Edge Device Analytics>
+<Healthcare Edge Computing, provisions resources, Security for Edge Devices>
+<Industrial Edge Computing, connectedTo, Offline Functionality>
+<Offline Functionality, connectedTo, Resource Management at Edge>
+<Offline Functionality, filters data, Edge Gateway Management>
+<Power Consumption Optimization, connectedTo, Healthcare Edge Computing>
+<Security for Edge Devices, connectedTo, Virtualization at Edge>
+<Security for Edge Devices, designs architectures, Industrial Edge Computing>
+<Virtualization at Edge, connectedTo, Edge Gateway Management>
diff --git a/test/diagrams/scanned_medium/diagrams_208.dot b/test/diagrams/scanned_medium/diagrams_208.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0bcaa3b6a2771a667a78fa63308cce4d1c28e915
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_208.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=BT
+	N0 [label="Cloud Architecture Design" color="#9FA9E1" fillcolor="#D6D9F0" shape=vnode_shape style=filled]
+	N1 [label="Compliance in Cloud" color="#9FA9E1" fillcolor="#D6D9F0" shape=multipledocuments style=filled]
+	N2 [label="Multi_Cloud Management" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	N3 [label="Auto_Scaling Configurations" color="#FFF9AE" fillcolor="#FFFCE6" shape=preparation style=filled]
+	N4 [label="Infrastructure as a Service" color="#00BCD4" fillcolor="#E0F7FA" shape=database style=filled]
+	N5 [label="Cloud Monitoring and Logging" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N6 [label="Big Data Services in Cloud" color="#9FA9E1" fillcolor="#D6D9F0" shape=multipledocuments style=filled]
+	N7 [label="Serverless Computing" color="#FFF9AE" fillcolor="#FFFCE6" shape=document style=filled]
+	N8 [label="CI or CD Pipelines in Cloud" color="#00BCD4" fillcolor="#E0F7FA" shape=rectangle style=filled]
+	N9 [label="Identity and Access Management" color="#00BCD4" fillcolor="#E0F7FA" shape=action style=filled]
+	N10 [label="Edge_to_Cloud Integration" color="#00BCD4" fillcolor="#E0F7FA" shape=inputoutput style=filled]
+	N11 [label="Cloud Governance" color="#FFF9AE" fillcolor="#FFFCE6" shape=preparation style=filled]
+	N12 [label="Cloud FinOps" color="#FFF9AE" fillcolor="#FFFCE6" shape=database style=filled]
+	N13 [label="Virtual Machine Management" color="#9FA9E1" fillcolor="#D6D9F0" shape=database style=filled]
+	S0 [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]
+	subgraph cluster_Network Configuration in Cloud {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Network Configuration in Cloud"
+		nest0_0 [label="Cost Optimization in Cloud" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+		nest0_1 [label="Cloud_based VPN Setup" color="#9FA9E1" fillcolor="#D6D9F0" shape=predefinedprocess style=filled]
+		nest0_2 [label="Public Cloud Management" color="#00BCD4" fillcolor="#E0F7FA" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#FFF9AE" 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 label="delivers SaaS" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFF9AE" 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=solid label="manages multi_clouds" dir=forward]
+	N9 -> N10 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#9FA9E1" penwidth=1.5 style=solid label="provides APIs" 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]
+	N8 -> nest0_0 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#9FA9E1" penwidth=1.5 style=solid label="migrates workloads" dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N6 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_208.txt b/test/diagrams/scanned_medium/diagrams_208.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1e58d0111da16b33da16c33ab608f980a57480b1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_208.txt
@@ -0,0 +1,21 @@
+<Auto_Scaling Configurations, connectedTo, Big Data Services in Cloud>
+<Auto_Scaling Configurations, connectedTo, Infrastructure as a Service>
+<Auto_Scaling Configurations, connectedTo, Serverless Computing>
+<Auto_Scaling Configurations, migrates workloads, Big Data Services in Cloud>
+<Big Data Services in Cloud, connectedTo, Serverless Computing>
+<CI or CD Pipelines in Cloud, connectedTo, Cost Optimization in Cloud>
+<CI or CD Pipelines in Cloud, manages multi_clouds, Identity and Access Management>
+<Cloud Architecture Design, connectedTo, Big Data Services in Cloud>
+<Cloud Architecture Design, connectedTo, Compliance in Cloud>
+<Cloud FinOps, provides APIs, Virtual Machine Management>
+<Cloud Governance, connectedTo, Cloud FinOps>
+<Cloud Monitoring and Logging, connectedTo, Big Data Services in Cloud>
+<Cloud_based VPN Setup, connectedTo, Public Cloud Management>
+<Compliance in Cloud, connectedTo, Multi_Cloud Management>
+<Cost Optimization in Cloud, connectedTo, Cloud_based VPN Setup>
+<Edge_to_Cloud Integration, connectedTo, Cloud Governance>
+<Identity and Access Management, connectedTo, Edge_to_Cloud Integration>
+<Infrastructure as a Service, connectedTo, Cloud Monitoring and Logging>
+<Multi_Cloud Management, delivers SaaS, Auto_Scaling Configurations>
+<Public Cloud Management, connectedTo, Cloud Governance>
+<Serverless Computing, connectedTo, CI or CD Pipelines in Cloud>
diff --git a/test/diagrams/scanned_medium/diagrams_209.dot b/test/diagrams/scanned_medium/diagrams_209.dot
new file mode 100644
index 0000000000000000000000000000000000000000..71fe432bd4c3d746f33f4c3bbd2c60d4cf4fa436
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_209.dot
@@ -0,0 +1,40 @@
+digraph {
+	rankdir=BT
+	N0 [label="Cloud Vendor Lock_in Mitigation" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N1 [label="Load Balancing in Cloud" color="#DCE775" fillcolor="#FCFCE7" shape=vnode_shape style=filled]
+	N2 [label="Public Cloud Management" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N3 [label="Multi_Cloud Management" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N4 [label="Hybrid Cloud Deployment" color="#DCE775" fillcolor="#F9FBE7" shape=action style=filled]
+	N5 [label="Machine Learning as a Service" color="#DCE775" fillcolor="#FCFCE7" shape=action style=filled]
+	N6 [label="Network Configuration in Cloud" color="#7E57C2" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N7 [label="Edge_to_Cloud Integration" color="#DCE775" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N8 [label="Cloud Architecture Design" color="#7E57C2" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N9 [label="Software as a Service" color="#DCE775" fillcolor="#FCFCE7" shape=rectangle style=filled]
+	S0 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#7E57C2" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Serverless Computing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Serverless Computing"
+		nest0_0 [label="Cloud Backup Solutions" color="#DCE775" fillcolor="#FCFCE7" shape=multipledocuments style=filled]
+		nest0_1 [label="Cloud Marketplace Integration" color="#DCE775" fillcolor="#F9FBE7" shape=action style=filled]
+	}
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=solid label="develops cloud_native apps" 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="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#DCE775" penwidth=1.5 style=solid label="integrates edge" dir=forward]
+	N5 -> N6 [color="#DCE775" penwidth=1.5 style=solid label="uses public clouds" dir=forward]
+	N6 -> N7 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> S0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#DCE775" penwidth=1.5 style=solid label="builds hybrid clouds" dir=forward]
+	M0 -> N4 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_209.txt b/test/diagrams/scanned_medium/diagrams_209.txt
new file mode 100644
index 0000000000000000000000000000000000000000..863c17f47feffce65b258be11e005264d284b059
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_209.txt
@@ -0,0 +1,16 @@
+<Cloud Architecture Design, connectedTo, Software as a Service>
+<Cloud Backup Solutions, connectedTo, Cloud Marketplace Integration>
+<Cloud Marketplace Integration, connectedTo, Software as a Service>
+<Cloud Vendor Lock_in Mitigation, develops cloud_native apps, Load Balancing in Cloud>
+<Edge_to_Cloud Integration, connectedTo, Cloud Architecture Design>
+<Hybrid Cloud Deployment, connectedTo, Edge_to_Cloud Integration>
+<Hybrid Cloud Deployment, connectedTo, Software as a Service>
+<Hybrid Cloud Deployment, integrates edge, Machine Learning as a Service>
+<Load Balancing in Cloud, connectedTo, Hybrid Cloud Deployment>
+<Load Balancing in Cloud, connectedTo, Public Cloud Management>
+<Machine Learning as a Service, connectedTo, Cloud Backup Solutions>
+<Machine Learning as a Service, uses public clouds, Network Configuration in Cloud>
+<Multi_Cloud Management, connectedTo, Hybrid Cloud Deployment>
+<Network Configuration in Cloud, connectedTo, Edge_to_Cloud Integration>
+<Public Cloud Management, builds hybrid clouds, Hybrid Cloud Deployment>
+<Public Cloud Management, connectedTo, Multi_Cloud Management>
diff --git a/test/diagrams/scanned_medium/diagrams_21.dot b/test/diagrams/scanned_medium/diagrams_21.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5839cc38870516436049fe377c0211fa916ea3ca
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_21.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=TB
+	N0 [label="Policy Issuance" color="#FFD54F" fillcolor="#FFF8E1" shape=multipledocuments style=filled]
+	N1 [label="Legal Review of Claims" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+	N2 [label="Fraud Investigation" color="#FFE470" fillcolor="#FFFAE0" shape=multipledocuments style=filled]
+	N3 [label="Telematics Data Analysis" color="#BDAFA8" fillcolor="#E4E0DF" shape=multipledocuments style=filled]
+	N4 [label="Reinsurance Negotiation" color="#FFD54F" fillcolor="#FFF8E1" shape=diamond style=filled]
+	N5 [label="Policy Application" color="#FFE470" fillcolor="#FFFAE0" shape=action style=filled]
+	N6 [label="Compliance Reporting" color="#FFE470" fillcolor="#FFFAE0" shape=action style=filled]
+	N7 [label="Coverage Review" color="#FFE470" fillcolor="#FFFAE0" shape=preparation style=filled]
+	N8 [label="Benefit Payout" color="#FFE470" fillcolor="#FFFAE0" shape=vnode_shape style=filled]
+	N9 [label="Underwriting" color="#FFE470" fillcolor="#FFFAE0" shape=multipledocuments style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="advises" dir=forward]
+	N1 -> N2 [color="#FFE470" penwidth=1.5 style=solid label="rejects" dir=forward]
+	N2 -> N3 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="processes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="policies" dir=forward]
+	N7 -> N8 [color="#FFD54F" penwidth=1.5 style=dashed label="claims" dir=forward]
+	N8 -> N9 [color="#FFD54F" penwidth=1.5 style=dashed label="documents" dir=forward]
+	N5 -> N7 [color="#FFD54F" penwidth=1.5 style=solid label="underwrites" dir=forward]
+	N4 -> N9 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_21.txt b/test/diagrams/scanned_medium/diagrams_21.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ea2d0ff88b8e9fe4623208a2190d80ac780ca46f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_21.txt
@@ -0,0 +1,11 @@
+<Benefit Payout, documents, Underwriting>
+<Compliance Reporting, policies, Coverage Review>
+<Coverage Review, claims, Benefit Payout>
+<Fraud Investigation, connectedTo, Telematics Data Analysis>
+<Legal Review of Claims, rejects, Fraud Investigation>
+<Policy Application, processes, Compliance Reporting>
+<Policy Application, underwrites, Coverage Review>
+<Policy Issuance, advises, Legal Review of Claims>
+<Reinsurance Negotiation, connectedTo, Policy Application>
+<Reinsurance Negotiation, connectedTo, Underwriting>
+<Telematics Data Analysis, connectedTo, Reinsurance Negotiation>
diff --git a/test/diagrams/scanned_medium/diagrams_210.dot b/test/diagrams/scanned_medium/diagrams_210.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bbe6c98ada04ccf8e01964aad8d168c9232b954c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_210.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=TB
+	N0 [label="Cloud Architecture Design" color="#A1887F" fillcolor="#EFEBE9" shape=box style=filled]
+	N1 [label="Machine Learning as a Service" color="#A1887F" fillcolor="#EFEBE9" shape=preparation style=filled]
+	N2 [label="Resource Tagging for Cost Allocation" color="#A188DB" fillcolor="#DED7F0" shape=predefinedprocess style=filled]
+	N3 [label="Compliance in Cloud" color="#FFC2C2" fillcolor="#FFEBEB" shape=rect style=filled]
+	N4 [label="Network Configuration in Cloud" color="#A188DB" fillcolor="#DED7F0" shape=database style=filled]
+	N5 [label="Cloud Security" color="#FFC2C2" fillcolor="#FFEBEB" shape=predefinedprocess style=filled]
+	N6 [label="Software as a Service" color="#FFC2C2" fillcolor="#FFEBEB" shape=parallelogram style=filled]
+	N7 [label="Cloud_based VPN Setup" color="#FFC2C2" fillcolor="#FFEBEB" 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="#A1887F" fillcolor="#EFEBE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFC2C2" fillcolor="#FFEBEB" 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="Database as a Service" color="#FFC2C2" fillcolor="#FFEBEB" shape=rect style=filled]
+		nest0_1 [label="Data Storage in Cloud" color="#FFC2C2" fillcolor="#FFEBEB" shape=database style=filled]
+		nest0_2 [label="Platform as a Service" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+		nest0_3 [label="Hybrid Cloud Deployment" color="#A188DB" fillcolor="#DED7F0" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#A1887F" penwidth=1.5 style=dashed label="monitors performance" dir=forward]
+	N3 -> N4 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFC2C2" 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="#FFC2C2" penwidth=1.5 style=solid label="builds hybrid clouds" dir=forward]
+	N3 -> nest0_0 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#FFC2C2" penwidth=1.5 style=dashed label="offers DBaaS" dir=forward]
+	N1 -> S1 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#A1887F" penwidth=1.5 style=dashed label="migrates workloads" dir=forward]
+	S1 -> N5 [color="#000000" penwidth=1.5 style=dashed label="configures firewalls" dir=forward]
+	S1 -> N7 [color="#A1887F" penwidth=1.5 style=solid label="stores data" dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	M0 -> N4 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_210.txt b/test/diagrams/scanned_medium/diagrams_210.txt
new file mode 100644
index 0000000000000000000000000000000000000000..45b1f0ab87e667fc3d90ff4f2348d6f693e5a4a9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_210.txt
@@ -0,0 +1,20 @@
+<Cloud Architecture Design, connectedTo, Machine Learning as a Service>
+<Cloud Architecture Design, connectedTo, Network Configuration in Cloud>
+<Cloud Security, connectedTo, Software as a Service>
+<Compliance in Cloud, connectedTo, Cloud Security>
+<Compliance in Cloud, connectedTo, Cloud_based VPN Setup>
+<Compliance in Cloud, connectedTo, Database as a Service>
+<Compliance in Cloud, connectedTo, Network Configuration in Cloud>
+<Compliance in Cloud, offers DBaaS, Software as a Service>
+<Data Storage in Cloud, connectedTo, Platform as a Service>
+<Database as a Service, connectedTo, Data Storage in Cloud>
+<Hybrid Cloud Deployment, connectedTo, Software as a Service>
+<Machine Learning as a Service, configures firewalls, Cloud Security>
+<Machine Learning as a Service, connectedTo, Resource Tagging for Cost Allocation>
+<Machine Learning as a Service, migrates workloads, Software as a Service>
+<Machine Learning as a Service, stores data, Cloud_based VPN Setup>
+<Network Configuration in Cloud, connectedTo, Cloud Security>
+<Platform as a Service, builds hybrid clouds, Hybrid Cloud Deployment>
+<Resource Tagging for Cost Allocation, connectedTo, Network Configuration in Cloud>
+<Resource Tagging for Cost Allocation, monitors performance, Compliance in Cloud>
+<Software as a Service, connectedTo, Cloud_based VPN Setup>
diff --git a/test/diagrams/scanned_medium/diagrams_211.dot b/test/diagrams/scanned_medium/diagrams_211.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a53f45aa2f5372f5dd42d8539709b474d8230829
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_211.dot
@@ -0,0 +1,37 @@
+digraph {
+	rankdir=TB
+	N0 [label="Remote Access Solutions" color="#795548" fillcolor="#D7CCC8" shape=hexagon style=filled]
+	N1 [label="Data Center Management" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N2 [label="Antivirus and Endpoint Protection" color="#DCE775" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N3 [label="Backup and Recovery Systems" color="#DCE775" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	N4 [label="Server Deployment" color="#795548" fillcolor="#D7CCC8" shape=diamond style=filled]
+	N5 [label="User Account Management" color="#61CAC3" fillcolor="#C2E8E6" shape=database style=filled]
+	S1 [label="" color="#DCE775" fillcolor="#F9FBE7" 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_Cloud Integration with On_premise {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cloud Integration with On_premise"
+		nest0_0 [label="Storage Solutions" color="#DCE775" fillcolor="#F9FBE7" shape=rectangle style=filled]
+		nest0_1 [label="Load Balancer Setup" color="#795548" fillcolor="#D7CCC8" shape=hexagon style=filled]
+		nest0_2 [label="IT Asset Management" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+		nest0_3 [label="Power and Cooling Management" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	}
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#795548" penwidth=1.5 style=solid label="maintains hardware" dir=forward]
+	N2 -> N3 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#DCE775" penwidth=1.5 style=solid label="troubleshoots issues" dir=forward]
+	N4 -> N5 [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="#DCE775" penwidth=1.5 style=solid label="manages power" dir=forward]
+	nest0_2 -> nest0_3 [color="#61CAC3" penwidth=1.5 style=solid label="deploys antiviruses" dir=forward]
+	N4 -> nest0_0 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N4 [color="#795548" penwidth=1.5 style=dashed label="manages directories" dir=forward]
+	N2 -> S1 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#DCE775" penwidth=1.5 style=solid label="manages mail servers" dir=forward]
+	N0 -> M0 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_211.txt b/test/diagrams/scanned_medium/diagrams_211.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3a8d0fbbc238764d1fa710dfab63ef593a1e982c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_211.txt
@@ -0,0 +1,14 @@
+<Antivirus and Endpoint Protection, connectedTo, Backup and Recovery Systems>
+<Antivirus and Endpoint Protection, connectedTo, Server Deployment>
+<Antivirus and Endpoint Protection, connectedTo, User Account Management>
+<Backup and Recovery Systems, manages mail servers, User Account Management>
+<Backup and Recovery Systems, troubleshoots issues, Server Deployment>
+<Data Center Management, maintains hardware, Antivirus and Endpoint Protection>
+<IT Asset Management, deploys antiviruses, Power and Cooling Management>
+<Load Balancer Setup, manages power, IT Asset Management>
+<Power and Cooling Management, manages directories, Server Deployment>
+<Remote Access Solutions, connectedTo, Data Center Management>
+<Remote Access Solutions, connectedTo, User Account Management>
+<Server Deployment, connectedTo, Storage Solutions>
+<Server Deployment, connectedTo, User Account Management>
+<Storage Solutions, connectedTo, Load Balancer Setup>
diff --git a/test/diagrams/scanned_medium/diagrams_212.dot b/test/diagrams/scanned_medium/diagrams_212.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ec765235ea1b19272e5b2bb65dda7098f9380ef5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_212.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=RL
+	N0 [label="Network Performance Tuning" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	N1 [label="Storage Solutions" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+	N2 [label="Remote Access Solutions" color="#B0C5CD" fillcolor="#DFE7EB" shape=database style=filled]
+	N3 [label="Patch Management" color="#607D8B" fillcolor="#CFD8DC" shape=preparation style=filled]
+	N4 [label="Monitoring and Alerting" color="#61CAC3" fillcolor="#C2E8E6" shape=vnode_shape style=filled]
+	N5 [label="Rack and Cabinet Management" color="#B0C5CD" fillcolor="#DFE7EB" shape=document style=filled]
+	N6 [label="Data Center Management" color="#61CAC3" fillcolor="#C2E8E6" shape=vnode_shape style=filled]
+	N7 [label="Capacity Planning" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+	N8 [label="Load Balancer Setup" color="#61CAC3" fillcolor="#C2E8E6" shape=rectangle style=filled]
+	N9 [label="Troubleshooting and Support" color="#B0C5CD" fillcolor="#DFE7EB" shape=action style=filled]
+	N10 [label="DNS Management" color="#61CAC3" fillcolor="#C2E8E6" shape=inputoutput style=filled]
+	S0 [label="" color="#61CAC3" fillcolor="#C2E8E6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#B0C5CD" fillcolor="#DFE7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Group Policy Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Group Policy Management"
+		nest0_0 [label="Virtual Desktop Infrastructure" color="#61CAC3" fillcolor="#C2E8E6" shape=action style=filled]
+		nest0_1 [label="Web Server Configuration" color="#B0C5CD" fillcolor="#DFE7EB" shape=rect style=filled]
+		nest0_2 [label="Mail Server Management" color="#B0C5CD" fillcolor="#DFE7EB" shape=database style=filled]
+	}
+	N0 -> N1 [color="#607D8B" penwidth=1.5 style=dashed label="deploys servers" dir=forward]
+	N1 -> N2 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#B0C5CD" penwidth=1.5 style=dashed 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="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#61CAC3" penwidth=1.5 style=solid label="manages power" dir=forward]
+	N8 -> N9 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed label="procures equipment" dir=forward]
+	nest0_1 -> nest0_2 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N2 [color="#B0C5CD" penwidth=1.5 style=dashed label="manages licenses" dir=forward]
+	N4 -> S0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=dashed label="performs backups" dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid label="ensures business continuity" dir=forward]
+	N2 -> S1 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_212.txt b/test/diagrams/scanned_medium/diagrams_212.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4cee256812cb162d711be00a7efe08842d35242e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_212.txt
@@ -0,0 +1,20 @@
+<Capacity Planning, connectedTo, Virtual Desktop Infrastructure>
+<Capacity Planning, manages power, Load Balancer Setup>
+<Data Center Management, connectedTo, Capacity Planning>
+<Load Balancer Setup, connectedTo, Troubleshooting and Support>
+<Mail Server Management, manages licenses, Remote Access Solutions>
+<Monitoring and Alerting, connectedTo, Data Center Management>
+<Monitoring and Alerting, connectedTo, Rack and Cabinet Management>
+<Monitoring and Alerting, ensures business continuity, DNS Management>
+<Monitoring and Alerting, performs backups, Load Balancer Setup>
+<Network Performance Tuning, deploys servers, Storage Solutions>
+<Patch Management, connectedTo, Monitoring and Alerting>
+<Rack and Cabinet Management, connectedTo, Data Center Management>
+<Remote Access Solutions, connectedTo, DNS Management>
+<Remote Access Solutions, connectedTo, Data Center Management>
+<Remote Access Solutions, connectedTo, Monitoring and Alerting>
+<Remote Access Solutions, connectedTo, Patch Management>
+<Storage Solutions, connectedTo, Remote Access Solutions>
+<Troubleshooting and Support, connectedTo, DNS Management>
+<Virtual Desktop Infrastructure, procures equipment, Web Server Configuration>
+<Web Server Configuration, connectedTo, Mail Server Management>
diff --git a/test/diagrams/scanned_medium/diagrams_213.dot b/test/diagrams/scanned_medium/diagrams_213.dot
new file mode 100644
index 0000000000000000000000000000000000000000..be360c7e5942798ce462883d40fd6563ab5f8ecc
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_213.dot
@@ -0,0 +1,38 @@
+digraph {
+	rankdir=TB
+	N0 [label="System Administration" color="#9C27B0" fillcolor="#E1BEE7" shape=parallelogram style=filled]
+	N1 [label="Web Server Configuration" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N2 [label="User Account Management" color="#94C0C0" fillcolor="#CADEDE" shape=multipledocuments style=filled]
+	N3 [label="Capacity Planning" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	N4 [label="Rack and Cabinet Management" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	N5 [label="Storage Solutions" color="#94C0C0" fillcolor="#CADEDE" shape=predefinedprocess style=filled]
+	N6 [label="Network Design" color="#388E3C" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	S0 [label="" color="#94C0C0" fillcolor="#CADEDE" 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_Disaster Recovery Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Disaster Recovery Planning"
+		nest0_0 [label="Antivirus and Endpoint Protection" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+		nest0_1 [label="Cabling and Wiring" color="#9C27B0" fillcolor="#E1BEE7" shape=vnode_shape style=filled]
+		nest0_2 [label="Database Administration" color="#94C0C0" fillcolor="#CADEDE" shape=inputoutput style=filled]
+		nest0_3 [label="Directory Services" color="#94C0C0" fillcolor="#CADEDE" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#388E3C" penwidth=1.5 style=dashed label="manages power" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#9C27B0" penwidth=1.5 style=dashed label="monitors performance" dir=forward]
+	N4 -> N5 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#9C27B0" 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="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid label="manages directories" dir=forward]
+	N2 -> nest0_0 [color="#388E3C" penwidth=1.5 style=dashed label="configures web servers" dir=forward]
+	nest0_3 -> N2 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#388E3C" penwidth=1.5 style=solid label="tracks assets" dir=forward]
+	S0 -> N5 [color="#94C0C0" penwidth=1.5 style=dashed label="manages storage" dir=forward]
+	N1 -> M1 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_213.txt b/test/diagrams/scanned_medium/diagrams_213.txt
new file mode 100644
index 0000000000000000000000000000000000000000..65a2a4ce5bf259b6eebce5ebd1ef13505c156ba4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_213.txt
@@ -0,0 +1,15 @@
+<Antivirus and Endpoint Protection, connectedTo, Cabling and Wiring>
+<Cabling and Wiring, connectedTo, Database Administration>
+<Capacity Planning, manages storage, Storage Solutions>
+<Capacity Planning, monitors performance, Rack and Cabinet Management>
+<Capacity Planning, tracks assets, Network Design>
+<Database Administration, manages directories, Directory Services>
+<Directory Services, connectedTo, User Account Management>
+<Rack and Cabinet Management, connectedTo, Storage Solutions>
+<Storage Solutions, connectedTo, Network Design>
+<System Administration, connectedTo, Capacity Planning>
+<System Administration, manages power, Web Server Configuration>
+<User Account Management, configures web servers, Antivirus and Endpoint Protection>
+<User Account Management, connectedTo, Capacity Planning>
+<Web Server Configuration, connectedTo, Capacity Planning>
+<Web Server Configuration, connectedTo, User Account Management>
diff --git a/test/diagrams/scanned_medium/diagrams_214.dot b/test/diagrams/scanned_medium/diagrams_214.dot
new file mode 100644
index 0000000000000000000000000000000000000000..29d341b8dafb96a2608cad83cc2e1c570570b2f8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_214.dot
@@ -0,0 +1,42 @@
+digraph {
+	rankdir=RL
+	N0 [label="Automated Testing" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N1 [label="Chaos Engineering" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+	N2 [label="Performance Metrics Analysis" color="#CD8FF2" fillcolor="#ECCFF5" shape=hexagon style=filled]
+	N3 [label="Infrastructure Provisioning" color="#CD8FF2" fillcolor="#ECCFF5" shape=rect style=filled]
+	N4 [label="Monitoring and Logging" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N5 [label="Feedback Loops" color="#CD8FF2" fillcolor="#ECCFF5" shape=predefinedprocess style=filled]
+	N6 [label="Continuous Integration" color="#FF5722" fillcolor="#FFCCBC" shape=database style=filled]
+	N7 [label="Static Code Analysis" color="#CD8FF2" fillcolor="#ECCFF5" shape=multipledocuments style=filled]
+	N8 [label="GitOps" color="#CD8FF2" fillcolor="#ECCFF5" shape=parallelogram style=filled]
+	N9 [label="Automated Deployment" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+	N10 [label="Serverless Deployment" color="#8C9EFF" fillcolor="#D3D7EB" shape=action style=filled]
+	S0 [label="" color="#8C9EFF" fillcolor="#D3D7EB" 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]
+	subgraph cluster_Code Quality Checks {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Code Quality Checks"
+		nest0_0 [label="Observability Implementation" color="#CD8FF2" fillcolor="#ECCFF5" shape=rect style=filled]
+		nest0_1 [label="Infrastructure as Code" color="#FF5722" fillcolor="#FFCCBC" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FF5722" 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="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest0_0 [color="#FF5722" penwidth=1.5 style=dashed label="ensures observability" dir=forward]
+	nest0_1 -> N9 [color="#CD8FF2" penwidth=1.5 style=solid label="deploys canaries" dir=forward]
+	N3 -> S0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=solid label="manages environments" dir=forward]
+	N2 -> M0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_214.txt b/test/diagrams/scanned_medium/diagrams_214.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d33fb1ae43a5088cf7ddb8e02f6390e58b4441ae
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_214.txt
@@ -0,0 +1,17 @@
+<Automated Deployment, connectedTo, Serverless Deployment>
+<Automated Testing, connectedTo, Chaos Engineering>
+<Chaos Engineering, connectedTo, Performance Metrics Analysis>
+<Continuous Integration, connectedTo, Static Code Analysis>
+<Feedback Loops, connectedTo, Continuous Integration>
+<Feedback Loops, manages environments, Static Code Analysis>
+<GitOps, connectedTo, Automated Deployment>
+<GitOps, ensures observability, Observability Implementation>
+<Infrastructure Provisioning, connectedTo, Feedback Loops>
+<Infrastructure Provisioning, connectedTo, GitOps>
+<Infrastructure Provisioning, connectedTo, Monitoring and Logging>
+<Infrastructure as Code, deploys canaries, Automated Deployment>
+<Monitoring and Logging, connectedTo, Feedback Loops>
+<Observability Implementation, connectedTo, Infrastructure as Code>
+<Performance Metrics Analysis, connectedTo, Infrastructure Provisioning>
+<Performance Metrics Analysis, connectedTo, Static Code Analysis>
+<Static Code Analysis, connectedTo, GitOps>
diff --git a/test/diagrams/scanned_medium/diagrams_215.dot b/test/diagrams/scanned_medium/diagrams_215.dot
new file mode 100644
index 0000000000000000000000000000000000000000..00751b71aa9ba6beddc96e03ed92f22729875f6b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_215.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=BT
+	N0 [label="Security in DevOps" color="#BA68C8" fillcolor="#F3E5F5" shape=action style=filled]
+	N1 [label="Static Code Analysis" color="#BA68C8" fillcolor="#F3E5F5" shape=document style=filled]
+	N2 [label="Pipeline Automation" color="#BA68C8" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	N3 [label="Code Quality Checks" color="#A188DB" fillcolor="#DED7F0" shape=preparation style=filled]
+	N4 [label="Serverless Deployment" color="#A188DB" fillcolor="#DED7F0" shape=diamond style=filled]
+	N5 [label="Infrastructure Provisioning" color="#A188DB" fillcolor="#DED7F0" shape=inputoutput style=filled]
+	N6 [label="Containerization" color="#A188DB" fillcolor="#DED7F0" shape=document style=filled]
+	S0 [label="" color="#DCE775" fillcolor="#F9FBE7" 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="#DCE775" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#DCE775" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Alerting and Incident Response {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Alerting and Incident Response"
+		nest0_0 [label="Secrets Management" color="#BA68C8" fillcolor="#F3E5F5" shape=diamond style=filled]
+		nest0_1 [label="Immutable Infrastructure" color="#DCE775" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+		nest0_2 [label="Release Management" color="#A188DB" fillcolor="#DED7F0" shape=multipledocuments style=filled]
+		nest0_3 [label="Observability Implementation" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=dashed label="implements CI" dir=forward]
+	N1 -> N2 [color="#BA68C8" penwidth=1.5 style=dashed label="provisions infrastructure" dir=forward]
+	N2 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#BA68C8" 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="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#A188DB" penwidth=1.5 style=solid label="conducts post_mortems" dir=forward]
+	N1 -> nest0_0 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N4 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=solid label="uses GitOps" dir=forward]
+	S0 -> N4 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N0 -> S1 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#A188DB" penwidth=1.5 style=solid label="enables ChatOps" dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#BA68C8" penwidth=1.5 style=dashed label="manages immutable infrastructure" dir=forward]
+	N1 -> M1 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_215.txt b/test/diagrams/scanned_medium/diagrams_215.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e10b68c300d31ce316cc0dcb8d38571618fc7a05
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_215.txt
@@ -0,0 +1,19 @@
+<Code Quality Checks, connectedTo, Serverless Deployment>
+<Code Quality Checks, manages immutable infrastructure, Containerization>
+<Immutable Infrastructure, connectedTo, Release Management>
+<Infrastructure Provisioning, connectedTo, Containerization>
+<Observability Implementation, connectedTo, Serverless Deployment>
+<Pipeline Automation, connectedTo, Code Quality Checks>
+<Pipeline Automation, connectedTo, Serverless Deployment>
+<Pipeline Automation, uses GitOps, Infrastructure Provisioning>
+<Release Management, conducts post_mortems, Observability Implementation>
+<Secrets Management, connectedTo, Immutable Infrastructure>
+<Security in DevOps, connectedTo, Code Quality Checks>
+<Security in DevOps, connectedTo, Serverless Deployment>
+<Security in DevOps, enables ChatOps, Code Quality Checks>
+<Security in DevOps, implements CI, Static Code Analysis>
+<Serverless Deployment, connectedTo, Infrastructure Provisioning>
+<Static Code Analysis, connectedTo, Code Quality Checks>
+<Static Code Analysis, connectedTo, Containerization>
+<Static Code Analysis, connectedTo, Secrets Management>
+<Static Code Analysis, provisions infrastructure, Pipeline Automation>
diff --git a/test/diagrams/scanned_medium/diagrams_216.dot b/test/diagrams/scanned_medium/diagrams_216.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5aa6080e4b6e47a9d34709115e135749a584233b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_216.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=BT
+	N0 [label="Cost Optimization in Cloud DevOps" color="#26A69A" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N1 [label="Environment Management" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+	N2 [label="Containerization" color="#26A69A" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N3 [label="Infrastructure as Code" color="#FFF9AE" fillcolor="#FFFCE6" shape=database style=filled]
+	N4 [label="Blue_Green Deployments" color="#26A69A" fillcolor="#E0F2F1" shape=document style=filled]
+	N5 [label="Serverless Deployment" color="#26A69A" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N6 [label="Chaos Engineering" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N7 [label="Post_Mortem Analysis" color="#26A69A" fillcolor="#E0F2F1" shape=database style=filled]
+	N8 [label="Version Control" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	S0 [label="" color="#26A69A" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFF9AE" fillcolor="#FFFCE6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Release Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Release Management"
+		nest0_0 [label="Code Quality Checks" color="#26A69A" fillcolor="#E0F2F1" shape=action style=filled]
+		nest0_1 [label="Secrets Management" color="#FFF9AE" fillcolor="#FFFCE6" shape=parallelogram style=filled]
+		nest0_2 [label="Immutable Infrastructure" color="#FFF9AE" fillcolor="#FFFCE6" shape=preparation style=filled]
+		nest0_3 [label="Feedback Loops" color="#FFF9AE" fillcolor="#FFFCE6" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#26A69A" penwidth=1.5 style=solid label="configures environments" dir=forward]
+	N1 -> N2 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFF9AE" penwidth=1.5 style=solid label="enables CD" dir=forward]
+	N5 -> N6 [color="#26A69A" penwidth=1.5 style=solid label="builds cloud_native apps" dir=forward]
+	N6 -> N7 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#26A69A" penwidth=1.5 style=dashed label="uses serverless" dir=forward]
+	nest0_0 -> nest0_1 [color="#FFB2A5" 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="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N5 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N3 [color="#FFF9AE" penwidth=1.5 style=solid label="fosters cross_functional teams" dir=forward]
+	S0 -> N4 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#26A69A" penwidth=1.5 style=solid label="provisions infrastructure" dir=forward]
+	N0 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_216.txt b/test/diagrams/scanned_medium/diagrams_216.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1bdf6dc659a8779ccc039591697bd48e547dba00
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_216.txt
@@ -0,0 +1,18 @@
+<Blue_Green Deployments, enables CD, Serverless Deployment>
+<Chaos Engineering, connectedTo, Code Quality Checks>
+<Chaos Engineering, connectedTo, Post_Mortem Analysis>
+<Code Quality Checks, connectedTo, Secrets Management>
+<Containerization, connectedTo, Infrastructure as Code>
+<Cost Optimization in Cloud DevOps, configures environments, Environment Management>
+<Cost Optimization in Cloud DevOps, connectedTo, Blue_Green Deployments>
+<Cost Optimization in Cloud DevOps, connectedTo, Post_Mortem Analysis>
+<Environment Management, connectedTo, Blue_Green Deployments>
+<Environment Management, connectedTo, Containerization>
+<Environment Management, fosters cross_functional teams, Infrastructure as Code>
+<Environment Management, provisions infrastructure, Serverless Deployment>
+<Feedback Loops, connectedTo, Serverless Deployment>
+<Immutable Infrastructure, connectedTo, Feedback Loops>
+<Infrastructure as Code, connectedTo, Blue_Green Deployments>
+<Post_Mortem Analysis, uses serverless, Version Control>
+<Secrets Management, connectedTo, Immutable Infrastructure>
+<Serverless Deployment, builds cloud_native apps, Chaos Engineering>
diff --git a/test/diagrams/scanned_medium/diagrams_217.dot b/test/diagrams/scanned_medium/diagrams_217.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b3f7dc04e64f1e8af51b58c40bb1adf73a877a62
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_217.dot
@@ -0,0 +1,52 @@
+digraph {
+	rankdir=TB
+	N0 [label="Cloud_Native Development" color="#7E57C2" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N1 [label="Architecture Planning" color="#42A5F5" fillcolor="#F1F8FF" shape=rectangle style=filled]
+	N2 [label="Compiler Design" color="#7E57C2" fillcolor="#D1C4E9" shape=action style=filled]
+	N3 [label="Deployment" color="#7E57C2" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N4 [label="Security Hardening" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N5 [label="Integration Testing" color="#42A5F5" fillcolor="#F1F8FF" shape=box style=filled]
+	N6 [label="Continuous Integration" color="#42A5F5" fillcolor="#F1F8FF" shape=multipledocuments style=filled]
+	N7 [label="Microservices Architecture" color="#7E57C2" fillcolor="#D1C4E9" shape=predefinedprocess style=filled]
+	N8 [label="Bug Fixing" color="#FFC2C2" fillcolor="#FFEBEB" shape=action style=filled]
+	N9 [label="Code Review" color="#42A5F5" fillcolor="#F1F8FF" shape=rect style=filled]
+	N10 [label="Containerization" color="#FFC2C2" fillcolor="#FFEBEB" shape=document style=filled]
+	N11 [label="Technical Debt Management" color="#FFC2C2" fillcolor="#FFEBEB" shape=vnode_shape style=filled]
+	S0 [label="" color="#42A5F5" fillcolor="#F1F8FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFC2C2" fillcolor="#FFEBEB" 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]
+	subgraph cluster_Web Application Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Web Application Development"
+		nest0_0 [label="Unit Testing" color="#42A5F5" fillcolor="#F1F8FF" shape=diamond style=filled]
+		nest0_1 [label="Frontend Development" color="#42A5F5" fillcolor="#F1F8FF" shape=rect style=filled]
+		nest0_2 [label="User Interface Design" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+		nest0_3 [label="Desktop Application Development" color="#FFC2C2" fillcolor="#FFEBEB" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#42A5F5" penwidth=1.5 style=dashed label="designs UXs" dir=forward]
+	N6 -> N7 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#FFC2C2" penwidth=1.5 style=solid label="designs algorithms" dir=forward]
+	N10 -> N11 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#7E57C2" penwidth=1.5 style=solid label="integrates modules" dir=forward]
+	nest0_2 -> nest0_3 [color="#7E57C2" penwidth=1.5 style=solid label="gathers requirements" dir=forward]
+	N2 -> nest0_0 [color="#7E57C2" penwidth=1.5 style=solid label="ensures scalability" dir=forward]
+	nest0_3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S0 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid label="creates UIs" dir=forward]
+	S0 -> N11 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	M0 -> N10 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=dashed label="deploys applications" dir=forward]
+	M1 -> N6 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_217.txt b/test/diagrams/scanned_medium/diagrams_217.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7d75263e330ac8913855e175a4c953dfa086837e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_217.txt
@@ -0,0 +1,22 @@
+<Architecture Planning, connectedTo, Compiler Design>
+<Architecture Planning, connectedTo, Containerization>
+<Bug Fixing, connectedTo, Code Review>
+<Bug Fixing, connectedTo, Technical Debt Management>
+<Bug Fixing, creates UIs, Containerization>
+<Cloud_Native Development, connectedTo, Architecture Planning>
+<Code Review, designs algorithms, Containerization>
+<Compiler Design, connectedTo, Deployment>
+<Compiler Design, ensures scalability, Unit Testing>
+<Containerization, connectedTo, Technical Debt Management>
+<Continuous Integration, connectedTo, Microservices Architecture>
+<Deployment, connectedTo, Containerization>
+<Deployment, connectedTo, Continuous Integration>
+<Deployment, connectedTo, Security Hardening>
+<Desktop Application Development, connectedTo, Security Hardening>
+<Frontend Development, integrates modules, User Interface Design>
+<Integration Testing, designs UXs, Continuous Integration>
+<Microservices Architecture, connectedTo, Bug Fixing>
+<Security Hardening, connectedTo, Integration Testing>
+<Security Hardening, deploys applications, Continuous Integration>
+<Unit Testing, connectedTo, Frontend Development>
+<User Interface Design, gathers requirements, Desktop Application Development>
diff --git a/test/diagrams/scanned_medium/diagrams_218.dot b/test/diagrams/scanned_medium/diagrams_218.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e79acb4c12205db279d3efe414648db93a2ccdd0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_218.dot
@@ -0,0 +1,41 @@
+digraph {
+	rankdir=TB
+	N0 [label="Continuous Integration" color="#FFC2C2" fillcolor="#FFEBEB" shape=database style=filled]
+	N1 [label="User Experience Design" color="#AABEC6" fillcolor="#E0E6E9" shape=document style=filled]
+	N2 [label="Technical Debt Management" color="#AABEC6" fillcolor="#E0E6E9" shape=multipledocuments style=filled]
+	N3 [label="Refactoring" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N4 [label="System Testing" color="#80DDEA" fillcolor="#D3F7F9" shape=parallelogram style=filled]
+	N5 [label="Containerization" color="#AABEC6" fillcolor="#E0E6E9" shape=document style=filled]
+	N6 [label="User Interface Design" color="#FFC2C2" fillcolor="#FFEBEB" shape=predefinedprocess style=filled]
+	N7 [label="Operating System Development" color="#AABEC6" fillcolor="#E0E6E9" shape=predefinedprocess style=filled]
+	S0 [label="" color="#FFC2C2" fillcolor="#FFEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#AABEC6" fillcolor="#E0E6E9" 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]
+	subgraph cluster_Testing Frameworks {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Testing Frameworks"
+		nest0_0 [label="Architecture Planning" color="#80DDEA" fillcolor="#D3F7F9" shape=predefinedprocess style=filled]
+		nest0_1 [label="Continuous Delivery" color="#AABEC6" fillcolor="#E0E6E9" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="optimizes performance" dir=forward]
+	N1 -> N2 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="develops cloud_native apps" dir=forward]
+	N4 -> N5 [color="#AABEC6" penwidth=1.5 style=dashed label="manages technical debt" dir=forward]
+	N5 -> N6 [color="#AABEC6" penwidth=1.5 style=dashed label="uses frameworks" dir=forward]
+	N6 -> N7 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#AABEC6" penwidth=1.5 style=dashed label="writes documentation" dir=forward]
+	N1 -> nest0_0 [color="#80DDEA" penwidth=1.5 style=solid label="integrates modules" dir=forward]
+	nest0_1 -> N2 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S1 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#80DDEA" penwidth=1.5 style=solid label="fixes bugs" dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=solid label="develops frontends" dir=forward]
+	N1 -> M0 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_218.txt b/test/diagrams/scanned_medium/diagrams_218.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7e2c10e91055b1307e3383a88f4fcd5ea80bf8cb
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_218.txt
@@ -0,0 +1,16 @@
+<Architecture Planning, writes documentation, Continuous Delivery>
+<Containerization, uses frameworks, User Interface Design>
+<Continuous Delivery, connectedTo, Technical Debt Management>
+<Continuous Integration, connectedTo, Operating System Development>
+<Continuous Integration, optimizes performance, User Experience Design>
+<Refactoring, develops cloud_native apps, System Testing>
+<System Testing, connectedTo, Operating System Development>
+<System Testing, connectedTo, User Interface Design>
+<System Testing, develops frontends, Operating System Development>
+<System Testing, fixes bugs, User Interface Design>
+<System Testing, manages technical debt, Containerization>
+<Technical Debt Management, connectedTo, Refactoring>
+<User Experience Design, connectedTo, Operating System Development>
+<User Experience Design, connectedTo, Technical Debt Management>
+<User Experience Design, integrates modules, Architecture Planning>
+<User Interface Design, connectedTo, Operating System Development>
diff --git a/test/diagrams/scanned_medium/diagrams_219.dot b/test/diagrams/scanned_medium/diagrams_219.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7574a661ed1d62d3e32872ef88baa1b5af3bac93
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_219.dot
@@ -0,0 +1,37 @@
+digraph {
+	rankdir=BT
+	N0 [label="Technical Debt Management" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	N1 [label="Frontend Development" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N2 [label="Algorithm Design" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	N3 [label="Containerization" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+	N4 [label="Coding" color="#94C0C0" fillcolor="#CADEDE" shape=parallelogram style=filled]
+	N5 [label="Mobile Application Development" color="#FFDA4E" fillcolor="#FFE88D" shape=hexagon style=filled]
+	N6 [label="Performance Optimization" color="#94C0C0" fillcolor="#CADEDE" shape=action style=filled]
+	S0 [label="" color="#94C0C0" fillcolor="#CADEDE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#94C0C0" fillcolor="#CADEDE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_System Testing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="System Testing"
+		nest0_0 [label="Security Hardening" color="#FFDA4E" fillcolor="#FFE88D" shape=document style=filled]
+		nest0_1 [label="Continuous Delivery" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+		nest0_2 [label="System Design" color="#FFDA4E" fillcolor="#FFE88D" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#94C0C0" penwidth=1.5 style=dashed label="designs UXs" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="manages versions" dir=forward]
+	N5 -> N6 [color="#000000" 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="#6EB76D" penwidth=1.5 style=solid label="performs refactoring" dir=forward]
+	N1 -> nest0_0 [color="#FFDA4E" penwidth=1.5 style=solid label="designs algorithms" dir=forward]
+	nest0_2 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#6EB76D" penwidth=1.5 style=solid label="uses agile methodologies" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_219.txt b/test/diagrams/scanned_medium/diagrams_219.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6965b3634e2db3eb7f99c174a309a923a2ae390d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_219.txt
@@ -0,0 +1,15 @@
+<Algorithm Design, connectedTo, Containerization>
+<Coding, manages versions, Mobile Application Development>
+<Containerization, connectedTo, Mobile Application Development>
+<Containerization, designs UXs, Coding>
+<Containerization, uses agile methodologies, Performance Optimization>
+<Continuous Delivery, performs refactoring, System Design>
+<Frontend Development, connectedTo, Algorithm Design>
+<Frontend Development, connectedTo, Coding>
+<Frontend Development, connectedTo, Mobile Application Development>
+<Frontend Development, connectedTo, Performance Optimization>
+<Frontend Development, designs algorithms, Security Hardening>
+<Mobile Application Development, connectedTo, Performance Optimization>
+<Security Hardening, connectedTo, Continuous Delivery>
+<System Design, connectedTo, Frontend Development>
+<Technical Debt Management, connectedTo, Frontend Development>
diff --git a/test/diagrams/scanned_medium/diagrams_22.dot b/test/diagrams/scanned_medium/diagrams_22.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f8c324bcaa36ed016acc02f164f3f8263fda0104
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_22.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=BT
+	N0 [label="DevSecOps Integration" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+	N1 [label="Intrusion Prevention" color="#00BCD4" fillcolor="#E0F7FA" shape=database style=filled]
+	N2 [label="Security Patch Management" color="#388E3C" fillcolor="#F1F8E9" shape=rectangle style=filled]
+	N3 [label="Backup and Recovery" color="#00BCD4" fillcolor="#E0F7FA" shape=document style=filled]
+	N4 [label="Cryptography Implementation" color="#00BCD4" fillcolor="#E0F7FA" shape=diamond style=filled]
+	N5 [label="Threat Detection" color="#00BCD4" fillcolor="#E0F7FA" shape=preparation style=filled]
+	N6 [label="Digital Forensics" color="#388E3C" fillcolor="#F1F8E9" shape=diamond style=filled]
+	N7 [label="Physical Security Integration" color="#00BCD4" fillcolor="#E0F7FA" shape=ellipse style=filled]
+	N8 [label="Vulnerability Assessment" color="#388E3C" fillcolor="#F1F8E9" shape=rectangle style=filled]
+	N9 [label="Data Encryption" color="#00BCD4" fillcolor="#E0F7FA" shape=inputoutput style=filled]
+	N10 [label="Disaster Recovery Planning" color="#4285F4" fillcolor="#D0E0F8" shape=database style=filled]
+	N0 -> N1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="tests" dir=forward]
+	N3 -> N4 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="integrates" dir=forward]
+	N5 -> N6 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#4285F4" penwidth=1.5 style=solid label="advises" dir=forward]
+	N8 -> N9 [color="#4285F4" penwidth=1.5 style=dashed label="governs" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed label="isolates" dir=forward]
+	N7 -> N0 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_22.txt b/test/diagrams/scanned_medium/diagrams_22.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0414f7040d312dfb449771c6b80a03cbe6290995
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_22.txt
@@ -0,0 +1,11 @@
+<Backup and Recovery, connectedTo, Cryptography Implementation>
+<Cryptography Implementation, integrates, Threat Detection>
+<Data Encryption, isolates, Disaster Recovery Planning>
+<DevSecOps Integration, connectedTo, Intrusion Prevention>
+<Digital Forensics, connectedTo, Physical Security Integration>
+<Intrusion Prevention, connectedTo, Security Patch Management>
+<Physical Security Integration, advises, Vulnerability Assessment>
+<Physical Security Integration, connectedTo, DevSecOps Integration>
+<Security Patch Management, tests, Backup and Recovery>
+<Threat Detection, connectedTo, Digital Forensics>
+<Vulnerability Assessment, governs, Data Encryption>
diff --git a/test/diagrams/scanned_medium/diagrams_220.dot b/test/diagrams/scanned_medium/diagrams_220.dot
new file mode 100644
index 0000000000000000000000000000000000000000..001f51865ae3aa099d976593aae785e233b2d525
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_220.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=TB
+	N0 [label="High_Speed Digital Design" color="#FFF9AE" fillcolor="#FFFCE6" shape=hexagon style=filled]
+	N1 [label="Thermal Management" color="#FFF9AE" fillcolor="#FFFCE6" shape=vnode_shape style=filled]
+	N2 [label="Testing and Validation" color="#DCE775" fillcolor="#FCFCE7" shape=hexagon style=filled]
+	N3 [label="Actuator Control" color="#FFB2A5" fillcolor="#FFDCD6" shape=parallelogram style=filled]
+	N4 [label="Firmware Development" color="#FFF9AE" fillcolor="#FFFCE6" shape=parallelogram style=filled]
+	N5 [label="FPGA Design" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+	N6 [label="Mixed_Signal Design" color="#FFF9AE" fillcolor="#FFFCE6" shape=hexagon style=filled]
+	N7 [label="RF Circuit Design" color="#FFF9AE" fillcolor="#FFFCE6" shape=diamond style=filled]
+	N8 [label="Manufacturing Process Planning" color="#FFB2A5" fillcolor="#FFDCD6" shape=multipledocuments style=filled]
+	N9 [label="Power Management Design" color="#FFF9AE" fillcolor="#FFFCE6" shape=diamond style=filled]
+	S0 [label="" color="#FFF9AE" fillcolor="#FFFCE6" 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="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Sensor Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Sensor Integration"
+		nest0_0 [label="Material Selection" color="#FFB2A5" fillcolor="#FFDCD6" shape=predefinedprocess style=filled]
+		nest0_1 [label="Assembly Line Optimization" color="#FFB2A5" fillcolor="#FFDCD6" shape=inputoutput style=filled]
+		nest0_2 [label="Cable Management" color="#FFB2A5" fillcolor="#FFDCD6" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFF9AE" penwidth=1.5 style=dashed label="selects materials" 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="#FFF9AE" penwidth=1.5 style=solid label="performs reverse engineering" dir=forward]
+	N5 -> N6 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="designs mixed_signal" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed label="ensures quality" dir=forward]
+	nest0_1 -> nest0_2 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> S0 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#DCE775" penwidth=1.5 style=dashed label="designs optical systems" dir=forward]
+	N4 -> S1 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#DCE775" penwidth=1.5 style=dashed label="controls actuators" dir=forward]
+	S1 -> N9 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_220.txt b/test/diagrams/scanned_medium/diagrams_220.txt
new file mode 100644
index 0000000000000000000000000000000000000000..42d15cdcaec969724610a9616d06eff8d9f94a71
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_220.txt
@@ -0,0 +1,21 @@
+<Actuator Control, connectedTo, Firmware Development>
+<Actuator Control, connectedTo, Power Management Design>
+<Assembly Line Optimization, connectedTo, Cable Management>
+<Cable Management, connectedTo, Thermal Management>
+<FPGA Design, connectedTo, Material Selection>
+<FPGA Design, connectedTo, Mixed_Signal Design>
+<FPGA Design, connectedTo, Power Management Design>
+<FPGA Design, designs optical systems, Manufacturing Process Planning>
+<Firmware Development, connectedTo, Mixed_Signal Design>
+<Firmware Development, connectedTo, Power Management Design>
+<Firmware Development, controls actuators, Manufacturing Process Planning>
+<Firmware Development, performs reverse engineering, FPGA Design>
+<High_Speed Digital Design, connectedTo, Thermal Management>
+<Manufacturing Process Planning, designs mixed_signal, Power Management Design>
+<Material Selection, ensures quality, Assembly Line Optimization>
+<Mixed_Signal Design, connectedTo, Power Management Design>
+<Mixed_Signal Design, connectedTo, RF Circuit Design>
+<RF Circuit Design, connectedTo, Manufacturing Process Planning>
+<RF Circuit Design, connectedTo, Power Management Design>
+<Testing and Validation, connectedTo, Actuator Control>
+<Thermal Management, selects materials, Testing and Validation>
diff --git a/test/diagrams/scanned_medium/diagrams_221.dot b/test/diagrams/scanned_medium/diagrams_221.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cadcb58a1ab0c3d584f7b109e0822581f63e0faf
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_221.dot
@@ -0,0 +1,52 @@
+digraph {
+	rankdir=LR
+	N0 [label="Quality Control" color="#7E57C2" fillcolor="#D1C4E9" shape=database style=filled]
+	N1 [label="Reliability Testing" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N2 [label="Signal Integrity Analysis" color="#7E57C2" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N3 [label="RF Circuit Design" color="#03A9F4" fillcolor="#B3E5FC" shape=action style=filled]
+	N4 [label="Environmental Testing" color="#9575CD" fillcolor="#EDE7F6" shape=rectangle style=filled]
+	N5 [label="Troubleshooting and Debugging" color="#03A9F4" fillcolor="#B3E5FC" shape=preparation style=filled]
+	N6 [label="Firmware Development" color="#9575CD" fillcolor="#EDE7F6" shape=box style=filled]
+	N7 [label="Supply Chain Management for Components" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N8 [label="Power Management Design" color="#7E57C2" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N9 [label="Cost Optimization" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N10 [label="Circuit Design" color="#7E57C2" fillcolor="#D1C4E9" shape=rect style=filled]
+	N11 [label="Documentation" color="#03A9F4" fillcolor="#B3E5FC" shape=document style=filled]
+	N12 [label="PCB Layout" color="#9575CD" fillcolor="#EDE7F6" shape=preparation style=filled]
+	N13 [label="Material Selection" color="#7E57C2" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N14 [label="Enclosure Design" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N15 [label="Microcontroller Programming" color="#03A9F4" fillcolor="#B3E5FC" shape=vnode_shape style=filled]
+	S0 [label="" color="#7E57C2" fillcolor="#D1C4E9" 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]
+	subgraph cluster_Electromagnetic Compatibility Testing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Electromagnetic Compatibility Testing"
+		nest0_0 [label="Thermal Management" color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+		nest0_1 [label="Prototyping" color="#03A9F4" fillcolor="#B3E5FC" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#9575CD" penwidth=1.5 style=solid label="ensures quality" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="optimizes for low power" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="designs mixed_signal" dir=forward]
+	N3 -> N4 [color="#9575CD" penwidth=1.5 style=solid label="integrates sensors" dir=forward]
+	N4 -> N5 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#7E57C2" penwidth=1.5 style=dashed label="manages supply chains" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#03A9F4" penwidth=1.5 style=solid label="manages cables" dir=forward]
+	N12 -> N13 [color="#03A9F4" penwidth=1.5 style=solid label="develops ASICs" dir=forward]
+	N13 -> N14 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N10 [color="#7E57C2" penwidth=1.5 style=solid label="manages EMC" dir=forward]
+	N3 -> S0 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#9575CD" penwidth=1.5 style=dashed label="optimizes costs" dir=forward]
+	S0 -> N15 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N8 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_221.txt b/test/diagrams/scanned_medium/diagrams_221.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2d32be995acc3d8bec6cf36f14c175ba6db2b608
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_221.txt
@@ -0,0 +1,22 @@
+<Circuit Design, connectedTo, Documentation>
+<Cost Optimization, manages supply chains, Circuit Design>
+<Documentation, manages cables, PCB Layout>
+<Enclosure Design, connectedTo, Microcontroller Programming>
+<Environmental Testing, connectedTo, Troubleshooting and Debugging>
+<Firmware Development, connectedTo, Supply Chain Management for Components>
+<Material Selection, connectedTo, Enclosure Design>
+<PCB Layout, develops ASICs, Material Selection>
+<Power Management Design, connectedTo, Cost Optimization>
+<Prototyping, manages EMC, Circuit Design>
+<Quality Control, ensures quality, Reliability Testing>
+<RF Circuit Design, connectedTo, Microcontroller Programming>
+<RF Circuit Design, integrates sensors, Environmental Testing>
+<RF Circuit Design, optimizes costs, Enclosure Design>
+<Reliability Testing, connectedTo, Power Management Design>
+<Reliability Testing, optimizes for low power, Signal Integrity Analysis>
+<Signal Integrity Analysis, connectedTo, Thermal Management>
+<Signal Integrity Analysis, designs mixed_signal, RF Circuit Design>
+<Supply Chain Management for Components, connectedTo, Power Management Design>
+<Thermal Management, connectedTo, Prototyping>
+<Troubleshooting and Debugging, connectedTo, Firmware Development>
+<Troubleshooting and Debugging, connectedTo, Power Management Design>
diff --git a/test/diagrams/scanned_medium/diagrams_222.txt b/test/diagrams/scanned_medium/diagrams_222.txt
new file mode 100644
index 0000000000000000000000000000000000000000..01671ba7a082ea391f2111ba717e7b856938402a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_222.txt
@@ -0,0 +1,20 @@
+<ASIC Design, connectedTo, Environmental Testing>
+<ASIC Design, connectedTo, Low_Power Design>
+<ASIC Design, creates documentation, Mixed_Signal Design>
+<Assembly Line Optimization, connectedTo, Thermal Management>
+<Cost Optimization, designs fixtures, ASIC Design>
+<Environmental Testing, connectedTo, Schematic Capture>
+<Environmental Testing, connectedTo, Sensor Integration>
+<Environmental Testing, connectedTo, Signal Integrity Analysis>
+<Failure Analysis, creates schematics, Signal Integrity Analysis>
+<Low_Power Design, designs enclosures, Assembly Line Optimization>
+<Mixed_Signal Design, designs for high speed, Regulatory Compliance>
+<Mixed_Signal Design, integrates sensors, Environmental Testing>
+<Power Integrity Analysis, connectedTo, Failure Analysis>
+<Power Management Design, connectedTo, Schematic Capture>
+<Regulatory Compliance, connectedTo, Environmental Testing>
+<Schematic Capture, connectedTo, Intellectual Property Protection>
+<Sensor Integration, tests hardware, Power Integrity Analysis>
+<Signal Integrity Analysis, connectedTo, Power Management Design>
+<Testing and Validation, connectedTo, Signal Integrity Analysis>
+<Thermal Management, connectedTo, Testing and Validation>
diff --git a/test/diagrams/scanned_medium/diagrams_223.dot b/test/diagrams/scanned_medium/diagrams_223.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4d4375b7bf8ef3510b873700db4e022341f856b3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_223.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=TB
+	N0 [label="Accessibility Features" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N1 [label="Database Design for Mobile" color="#7986CB" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	N2 [label="Prototyping" color="#2196F3" fillcolor="#BBDEFB" shape=predefinedprocess style=filled]
+	N3 [label="Ad Monetization" color="#7986CB" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N4 [label="In_App Purchase Integration" color="#7986CB" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N5 [label="Crash Reporting" color="#7986CB" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N6 [label="Push Notification Implementation" color="#7986CB" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N7 [label="Wireframing" color="#2196F3" fillcolor="#BBDEFB" shape=rectangle style=filled]
+	S0 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#7986CB" fillcolor="#E8EAF6" 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_Microphone Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Microphone Integration"
+		nest0_0 [label="Updates and Maintenance" color="#7986CB" fillcolor="#E8EAF6" shape=database style=filled]
+		nest0_1 [label="Widget Development" color="#EAEFA5" fillcolor="#FDFCEB" shape=predefinedprocess style=filled]
+		nest0_2 [label="IoT Device Control via App" color="#EAEFA5" fillcolor="#FDFCEB" shape=rect style=filled]
+		nest0_3 [label="Camera Integration" color="#7986CB" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#7986CB" penwidth=1.5 style=dashed label="integrates ads" dir=forward]
+	nest0_1 -> nest0_2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#7986CB" penwidth=1.5 style=solid label="designs widgets" dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N3 [color="#7986CB" penwidth=1.5 style=dashed label="implements notifications" dir=forward]
+	N3 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#7986CB" penwidth=1.5 style=dashed label="gathers feedback" dir=forward]
+	N2 -> M0 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_223.txt b/test/diagrams/scanned_medium/diagrams_223.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3151828ccf88948f0bf7bb2bc35c5d2e3291292a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_223.txt
@@ -0,0 +1,18 @@
+<Accessibility Features, connectedTo, Database Design for Mobile>
+<Ad Monetization, connectedTo, Crash Reporting>
+<Ad Monetization, connectedTo, In_App Purchase Integration>
+<Ad Monetization, connectedTo, Push Notification Implementation>
+<Camera Integration, implements notifications, Ad Monetization>
+<Crash Reporting, connectedTo, Push Notification Implementation>
+<Database Design for Mobile, connectedTo, Crash Reporting>
+<Database Design for Mobile, connectedTo, Prototyping>
+<Database Design for Mobile, connectedTo, Wireframing>
+<Database Design for Mobile, gathers feedback, Crash Reporting>
+<In_App Purchase Integration, connectedTo, Crash Reporting>
+<IoT Device Control via App, designs widgets, Camera Integration>
+<Prototyping, connectedTo, Ad Monetization>
+<Prototyping, connectedTo, Crash Reporting>
+<Push Notification Implementation, connectedTo, Updates and Maintenance>
+<Push Notification Implementation, connectedTo, Wireframing>
+<Updates and Maintenance, integrates ads, Widget Development>
+<Widget Development, connectedTo, IoT Device Control via App>
diff --git a/test/diagrams/scanned_medium/diagrams_224.dot b/test/diagrams/scanned_medium/diagrams_224.dot
new file mode 100644
index 0000000000000000000000000000000000000000..83e778882aa523393bbf705c41309cbe65d28443
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_224.dot
@@ -0,0 +1,44 @@
+digraph {
+	rankdir=LR
+	N0 [label="Testing and Debugging" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N1 [label="User Onboarding Flows" color="#A188D0" fillcolor="#DACBE3" shape=multipledocuments style=filled]
+	N2 [label="Ad Monetization" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N3 [label="Deep Linking" color="#FFB2A5" fillcolor="#FFDCD6" shape=predefinedprocess style=filled]
+	N4 [label="Security Implementation" color="#FFB2A5" fillcolor="#FFDCD6" shape=document style=filled]
+	N5 [label="Wireframing" color="#A188D0" fillcolor="#DACBE3" shape=hexagon style=filled]
+	N6 [label="Cross_Platform Development" color="#2196F3" fillcolor="#BBDEFB" shape=document style=filled]
+	N7 [label="Payment Gateway Integration" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+	N8 [label="AR or VR Features in Mobile" color="#FFB2A5" fillcolor="#FFDCD6" shape=database style=filled]
+	N9 [label="Gamification Elements" color="#FFB2A5" fillcolor="#FFDCD6" shape=multipledocuments 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="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Wearable Device Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Wearable Device Integration"
+		nest0_0 [label="Subscription Management" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+		nest0_1 [label="Native App Development" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#FFB2A5" penwidth=1.5 style=solid label="develops cross_platform apps" dir=forward]
+	nest0_1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#FFB2A5" penwidth=1.5 style=dashed label="controls IoT devices" dir=forward]
+	N6 -> S1 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#2196F3" penwidth=1.5 style=solid label="implements biometrics" dir=forward]
+	N0 -> M0 [color="#A188D0" penwidth=1.5 style=solid label="enables offline access" 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_medium/diagrams_224.txt b/test/diagrams/scanned_medium/diagrams_224.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6cac2385ad54d12524e21c2e6859bc014daf888f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_224.txt
@@ -0,0 +1,18 @@
+<AR or VR Features in Mobile, connectedTo, Gamification Elements>
+<Ad Monetization, connectedTo, Cross_Platform Development>
+<Ad Monetization, connectedTo, Deep Linking>
+<Ad Monetization, controls IoT devices, Payment Gateway Integration>
+<Ad Monetization, implements biometrics, Security Implementation>
+<Cross_Platform Development, connectedTo, AR or VR Features in Mobile>
+<Cross_Platform Development, connectedTo, Gamification Elements>
+<Cross_Platform Development, connectedTo, Payment Gateway Integration>
+<Deep Linking, connectedTo, Security Implementation>
+<Native App Development, connectedTo, Gamification Elements>
+<Payment Gateway Integration, connectedTo, AR or VR Features in Mobile>
+<Security Implementation, connectedTo, Wireframing>
+<Subscription Management, connectedTo, Native App Development>
+<Testing and Debugging, connectedTo, User Onboarding Flows>
+<Testing and Debugging, enables offline access, Security Implementation>
+<User Onboarding Flows, connectedTo, Ad Monetization>
+<User Onboarding Flows, develops cross_platform apps, Subscription Management>
+<Wireframing, connectedTo, Cross_Platform Development>
diff --git a/test/diagrams/scanned_medium/diagrams_225.dot b/test/diagrams/scanned_medium/diagrams_225.dot
new file mode 100644
index 0000000000000000000000000000000000000000..229d672118aab94ab5a44a7d61fbd63d80a79a94
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_225.dot
@@ -0,0 +1,39 @@
+digraph {
+	rankdir=RL
+	N0 [label="Cross_Platform Development" color="#80DDEA" fillcolor="#D3F7F9" shape=parallelogram style=filled]
+	N1 [label="In_App Purchase Integration" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+	N2 [label="Deployment to App Stores" color="#FFE69C" fillcolor="#FFF9D4" shape=box style=filled]
+	N3 [label="User Feedback Collection" color="#FFE69C" fillcolor="#FFF9D4" shape=preparation style=filled]
+	N4 [label="Database Design for Mobile" color="#80DDEA" fillcolor="#D3F7F9" shape=preparation style=filled]
+	N5 [label="API Development" color="#FFE69C" fillcolor="#FFF9D4" shape=rectangle style=filled]
+	N6 [label="Real_time Communication Features" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N7 [label="Wireframing" color="#80DDEA" fillcolor="#D3F7F9" shape=multipledocuments style=filled]
+	S0 [label="" color="#FFE69C" fillcolor="#FFF9D4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Performance Optimization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Performance Optimization"
+		nest0_0 [label="Security Implementation" color="#7986CB" fillcolor="#E8EAF6" shape=action style=filled]
+		nest0_1 [label="AR or VR Features in Mobile" color="#FFE69C" fillcolor="#FFF9D4" shape=parallelogram style=filled]
+		nest0_2 [label="Offline Mode Development" color="#80DDEA" fillcolor="#D3F7F9" shape=parallelogram style=filled]
+		nest0_3 [label="User Experience Design" color="#80DDEA" fillcolor="#D3F7F9" shape=action style=filled]
+	}
+	N0 -> N1 [color="#7986CB" penwidth=1.5 style=solid label="optimizes ASO" dir=forward]
+	N1 -> N2 [color="#FFE69C" penwidth=1.5 style=dashed label="integrates chat" dir=forward]
+	N2 -> N3 [color="#FFE69C" penwidth=1.5 style=solid label="concepts ideas" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFE69C" penwidth=1.5 style=dashed label="designs UXs" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#FFE69C" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#FFE69C" penwidth=1.5 style=dashed label="integrates wearables" dir=forward]
+	S0 -> N5 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N0 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N4 [color="#000000" penwidth=1.5 style=solid label="integrates in_app purchases" dir=forward]
+	N0 -> N6 [color="#FFE69C" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_225.txt b/test/diagrams/scanned_medium/diagrams_225.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9f58d7e454916fcf978b0b361e434a1ff9844945
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_225.txt
@@ -0,0 +1,17 @@
+<API Development, connectedTo, Real_time Communication Features>
+<AR or VR Features in Mobile, connectedTo, Offline Mode Development>
+<Cross_Platform Development, connectedTo, Deployment to App Stores>
+<Cross_Platform Development, connectedTo, Real_time Communication Features>
+<Cross_Platform Development, optimizes ASO, In_App Purchase Integration>
+<Database Design for Mobile, connectedTo, API Development>
+<Database Design for Mobile, connectedTo, Security Implementation>
+<Deployment to App Stores, concepts ideas, User Feedback Collection>
+<Deployment to App Stores, integrates in_app purchases, Database Design for Mobile>
+<In_App Purchase Integration, integrates chat, Deployment to App Stores>
+<Offline Mode Development, connectedTo, User Experience Design>
+<Real_time Communication Features, connectedTo, Wireframing>
+<Security Implementation, designs UXs, AR or VR Features in Mobile>
+<User Experience Design, connectedTo, Real_time Communication Features>
+<User Feedback Collection, connectedTo, API Development>
+<User Feedback Collection, connectedTo, Database Design for Mobile>
+<User Feedback Collection, integrates wearables, Real_time Communication Features>
diff --git a/test/diagrams/scanned_medium/diagrams_226.dot b/test/diagrams/scanned_medium/diagrams_226.dot
new file mode 100644
index 0000000000000000000000000000000000000000..77ae94c32dc2849a74dc68304a5fc15f5dda111d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_226.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=TB
+	N0 [label="User_Generated Content Curation" color="#BCB88A" fillcolor="#F5F5DC" shape=inputoutput style=filled]
+	N1 [label="Scheduling Posts" color="#DCE775" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N2 [label="Reels or Short Video Production" color="#BCB88A" fillcolor="#F5F5DC" shape=rectangle style=filled]
+	N3 [label="Audience Engagement" color="#BCB88A" fillcolor="#F5F5DC" shape=parallelogram style=filled]
+	N4 [label="Content Moderation" color="#FFD54F" fillcolor="#FFF8E1" shape=rect style=filled]
+	N5 [label="Content Creation" color="#BCB88A" fillcolor="#F5F5DC" shape=multipledocuments style=filled]
+	N6 [label="Partnership Management on Social" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N7 [label="Performance Analytics" color="#FFD54F" fillcolor="#FFF8E1" shape=inputoutput style=filled]
+	N8 [label="Influencer Collaboration" color="#BCB88A" fillcolor="#F5F5DC" shape=preparation style=filled]
+	N9 [label="Crisis Management" color="#FFD54F" fillcolor="#FFF8E1" shape=action style=filled]
+	N10 [label="Story Format Content Creation" color="#BCB88A" fillcolor="#F5F5DC" shape=multipledocuments style=filled]
+	N11 [label="Direct Messaging Strategy" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+	N12 [label="Engagement Rate Calculation" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFD54F" fillcolor="#FFF8E1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#DCE775" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Trend Monitoring {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Trend Monitoring"
+		nest0_0 [label="Customer Service on Social Media" color="#BCB88A" fillcolor="#F5F5DC" shape=hexagon style=filled]
+		nest0_1 [label="Competitor Analysis" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+	}
+	N0 -> N1 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#BCB88A" penwidth=1.5 style=dashed label="generates reports" dir=forward]
+	N2 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFD54F" penwidth=1.5 style=dashed label="curates UGC" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="creates stories" dir=forward]
+	N6 -> N7 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="considers ethics" dir=forward]
+	N8 -> N9 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFD54F" penwidth=1.5 style=solid label="creates content" dir=forward]
+	N10 -> N11 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N7 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N11 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N9 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_226.txt b/test/diagrams/scanned_medium/diagrams_226.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b7141ee147037e922073b7a725fb809e8ea0b0a1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_226.txt
@@ -0,0 +1,21 @@
+<Audience Engagement, connectedTo, Content Moderation>
+<Audience Engagement, connectedTo, Crisis Management>
+<Competitor Analysis, connectedTo, Performance Analytics>
+<Content Creation, connectedTo, Direct Messaging Strategy>
+<Content Creation, creates stories, Partnership Management on Social>
+<Content Moderation, curates UGC, Content Creation>
+<Crisis Management, creates content, Story Format Content Creation>
+<Customer Service on Social Media, connectedTo, Competitor Analysis>
+<Direct Messaging Strategy, connectedTo, Engagement Rate Calculation>
+<Influencer Collaboration, connectedTo, Crisis Management>
+<Partnership Management on Social, connectedTo, Crisis Management>
+<Partnership Management on Social, connectedTo, Performance Analytics>
+<Performance Analytics, connectedTo, Customer Service on Social Media>
+<Performance Analytics, considers ethics, Influencer Collaboration>
+<Reels or Short Video Production, connectedTo, Audience Engagement>
+<Reels or Short Video Production, connectedTo, Direct Messaging Strategy>
+<Scheduling Posts, connectedTo, Direct Messaging Strategy>
+<Scheduling Posts, connectedTo, Story Format Content Creation>
+<Scheduling Posts, generates reports, Reels or Short Video Production>
+<Story Format Content Creation, connectedTo, Direct Messaging Strategy>
+<User_Generated Content Curation, connectedTo, Scheduling Posts>
diff --git a/test/diagrams/scanned_medium/diagrams_227.dot b/test/diagrams/scanned_medium/diagrams_227.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f3c5c4593e6873ab6b9f992fc5f2337927da5649
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_227.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=RL
+	N0 [label="Trend Monitoring" color="#BDAFA8" fillcolor="#E4E0DF" shape=diamond style=filled]
+	N1 [label="Crisis Communication Plan" color="#BDAFA8" fillcolor="#E4E0DF" shape=preparation style=filled]
+	N2 [label="Audience Engagement" color="#A2D0FF" fillcolor="#E8F0FF" shape=rect style=filled]
+	N3 [label="Platform Selection" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N4 [label="Polls and Quizzes Creation" color="#BDAFA8" fillcolor="#E4E0DF" shape=inputoutput style=filled]
+	N5 [label="Emerging Platform Exploration" color="#90A4AE" fillcolor="#ECEFF1" shape=action style=filled]
+	N6 [label="Personal Branding on Social Media" color="#90A4AE" fillcolor="#ECEFF1" shape=rect style=filled]
+	N7 [label="Engagement Rate Calculation" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	N8 [label="Reputation Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N9 [label="Social Selling" color="#A2D0FF" fillcolor="#E8F0FF" shape=predefinedprocess style=filled]
+	N10 [label="Content Strategy" color="#A2D0FF" fillcolor="#E8F0FF" shape=inputoutput style=filled]
+	N11 [label="Hashtag Research" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+	S0 [label="" color="#90A4AE" fillcolor="#ECEFF1" 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_Performance Analytics {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Performance Analytics"
+		nest0_0 [label="Reporting and Optimization" color="#BDAFA8" fillcolor="#E4E0DF" shape=preparation style=filled]
+		nest0_1 [label="Brand Voice Development" color="#BDAFA8" fillcolor="#E4E0DF" shape=predefinedprocess style=filled]
+		nest0_2 [label="Reach and Impressions Tracking" color="#90A4AE" fillcolor="#ECEFF1" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#BDAFA8" 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=dashed dir=forward]
+	N3 -> N4 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#A2D0FF" penwidth=1.5 style=solid label="hosts live streams" dir=forward]
+	N6 -> N7 [color="#90A4AE" penwidth=1.5 style=solid label="creates stories" dir=forward]
+	N7 -> N8 [color="#A2D0FF" 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 dir=forward]
+	N10 -> N11 [color="#A2D0FF" penwidth=1.5 style=dashed label="produces reels" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#90A4AE" penwidth=1.5 style=solid label="develops strategies" dir=forward]
+	N7 -> nest0_0 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N4 [color="#000000" penwidth=1.5 style=dashed label="generates reports" dir=forward]
+	N4 -> S0 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#A2D0FF" penwidth=1.5 style=dashed label="monitors trends" dir=forward]
+	N2 -> M0 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_227.txt b/test/diagrams/scanned_medium/diagrams_227.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f100465aa431d6319da8865e17ec9aa8bd75dc3c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_227.txt
@@ -0,0 +1,19 @@
+<Audience Engagement, connectedTo, Emerging Platform Exploration>
+<Audience Engagement, connectedTo, Platform Selection>
+<Brand Voice Development, develops strategies, Reach and Impressions Tracking>
+<Content Strategy, produces reels, Hashtag Research>
+<Crisis Communication Plan, connectedTo, Audience Engagement>
+<Emerging Platform Exploration, hosts live streams, Personal Branding on Social Media>
+<Engagement Rate Calculation, connectedTo, Reporting and Optimization>
+<Engagement Rate Calculation, connectedTo, Reputation Management>
+<Personal Branding on Social Media, creates stories, Engagement Rate Calculation>
+<Platform Selection, connectedTo, Emerging Platform Exploration>
+<Platform Selection, connectedTo, Polls and Quizzes Creation>
+<Polls and Quizzes Creation, connectedTo, Content Strategy>
+<Polls and Quizzes Creation, connectedTo, Emerging Platform Exploration>
+<Polls and Quizzes Creation, monitors trends, Social Selling>
+<Reach and Impressions Tracking, generates reports, Polls and Quizzes Creation>
+<Reporting and Optimization, connectedTo, Brand Voice Development>
+<Reputation Management, connectedTo, Social Selling>
+<Social Selling, connectedTo, Content Strategy>
+<Trend Monitoring, connectedTo, Crisis Communication Plan>
diff --git a/test/diagrams/scanned_medium/diagrams_228.dot b/test/diagrams/scanned_medium/diagrams_228.dot
new file mode 100644
index 0000000000000000000000000000000000000000..49aa317f19fd789dc8b442175d7b74e32a8e9de5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_228.dot
@@ -0,0 +1,43 @@
+digraph {
+	rankdir=RL
+	N0 [label="Reels or Short Video Production" color="#FBC02D" fillcolor="#FFFDE7" shape=database style=filled]
+	N1 [label="Paid Social Media Advertising" color="#9C27B0" fillcolor="#E1BEE7" shape=preparation style=filled]
+	N2 [label="Live Streaming on Social Media" color="#9C27B0" fillcolor="#E1BEE7" shape=document style=filled]
+	N3 [label="Content Creation" color="#8C9EFF" fillcolor="#D3D7EB" shape=rect style=filled]
+	N4 [label="Competitor Analysis" color="#8C9EFF" fillcolor="#D3D7EB" shape=action style=filled]
+	N5 [label="Customer Service on Social Media" color="#FBC02D" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	N6 [label="Influencer Collaboration" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	N7 [label="Reporting and Optimization" color="#9C27B0" fillcolor="#E1BEE7" shape=predefinedprocess style=filled]
+	N8 [label="Cross_Promotion" color="#8C9EFF" fillcolor="#D3D7EB" shape=box style=filled]
+	N9 [label="Social Selling" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N10 [label="Content Moderation" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	S0 [label="" color="#FBC02D" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#8C9EFF" fillcolor="#D3D7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_User_Generated Content Curation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="User_Generated Content Curation"
+		nest0_0 [label="Community Management" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+		nest0_1 [label="Performance Analytics" color="#8C9EFF" fillcolor="#D3D7EB" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#8C9EFF" penwidth=1.5 style=solid label="manages crises" dir=forward]
+	N4 -> N5 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#8C9EFF" penwidth=1.5 style=dashed label="runs polls" dir=forward]
+	N7 -> N8 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#9C27B0" penwidth=1.5 style=solid label="develops brand voice" dir=forward]
+	N9 -> N10 [color="#8C9EFF" penwidth=1.5 style=dashed label="analyzes engagement" dir=forward]
+	nest0_0 -> nest0_1 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#FBC02D" penwidth=1.5 style=solid label="cross_promotes content" dir=forward]
+	nest0_1 -> N10 [color="#8C9EFF" penwidth=1.5 style=dashed label="creates content" dir=forward]
+	N3 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=dashed label="uses hashtags" dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed label="builds reputation" dir=forward]
+	N7 -> S1 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_228.txt b/test/diagrams/scanned_medium/diagrams_228.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3c7589d9eb03bba642db1dccc1fac934ee68185d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_228.txt
@@ -0,0 +1,18 @@
+<Community Management, connectedTo, Performance Analytics>
+<Competitor Analysis, connectedTo, Customer Service on Social Media>
+<Competitor Analysis, cross_promotes content, Community Management>
+<Content Creation, builds reputation, Social Selling>
+<Content Creation, connectedTo, Reporting and Optimization>
+<Content Creation, manages crises, Competitor Analysis>
+<Content Creation, uses hashtags, Influencer Collaboration>
+<Cross_Promotion, develops brand voice, Social Selling>
+<Customer Service on Social Media, connectedTo, Influencer Collaboration>
+<Influencer Collaboration, runs polls, Reporting and Optimization>
+<Live Streaming on Social Media, connectedTo, Content Creation>
+<Paid Social Media Advertising, connectedTo, Live Streaming on Social Media>
+<Performance Analytics, creates content, Content Moderation>
+<Reels or Short Video Production, connectedTo, Paid Social Media Advertising>
+<Reporting and Optimization, connectedTo, Content Moderation>
+<Reporting and Optimization, connectedTo, Cross_Promotion>
+<Reporting and Optimization, connectedTo, Social Selling>
+<Social Selling, analyzes engagement, Content Moderation>
diff --git a/test/diagrams/scanned_medium/diagrams_229.dot b/test/diagrams/scanned_medium/diagrams_229.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b281dc7a7b0aaf5ec62576b0ccc04c479e5ed629
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_229.dot
@@ -0,0 +1,45 @@
+digraph {
+	rankdir=RL
+	N0 [label="Crawling Websites" color="#73C6BC" fillcolor="#D0EFEE" shape=inputoutput style=filled]
+	N1 [label="Featured Snippets Optimization" color="#B8C0F5" fillcolor="#ECF0FD" shape=action style=filled]
+	N2 [label="Ranking Algorithms" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N3 [label="Schema Markup Implementation" color="#B8C0F5" fillcolor="#ECF0FD" shape=rect style=filled]
+	N4 [label="Algorithm Updates Monitoring" color="#73C6BC" fillcolor="#D0EFEE" shape=rectangle style=filled]
+	N5 [label="On_Page SEO" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N6 [label="Image Search" color="#9575CD" fillcolor="#EDE7F6" shape=diamond style=filled]
+	N7 [label="Search Engine Marketing Strategy" color="#73C6BC" fillcolor="#D0EFEE" shape=rectangle style=filled]
+	N8 [label="Knowledge Graph Integration" color="#9575CD" fillcolor="#EDE7F6" shape=database style=filled]
+	N9 [label="Semantic Search" color="#B8C0F5" fillcolor="#ECF0FD" shape=rectangle style=filled]
+	N10 [label="Video Search" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N11 [label="Paid Search Advertising" color="#B8C0F5" fillcolor="#ECF0FD" shape=document style=filled]
+	S0 [label="" color="#73C6BC" fillcolor="#D0EFEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#B8C0F5" fillcolor="#ECF0FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Shopping Search {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Shopping Search"
+		nest0_0 [label="User Experience for Search" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+		nest0_1 [label="Local SEO" color="#9575CD" fillcolor="#EDE7F6" shape=database style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#73C6BC" penwidth=1.5 style=solid label="ranks results" dir=forward]
+	N5 -> N6 [color="#73C6BC" penwidth=1.5 style=solid label="manages international SEO" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="optimizes off_page" dir=forward]
+	N7 -> N8 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="uses semantics" dir=forward]
+	N9 -> N10 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#73C6BC" penwidth=1.5 style=dashed label="analyzes competitors" dir=forward]
+	nest0_0 -> nest0_1 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N8 [color="#73C6BC" penwidth=1.5 style=dashed label="indexes academic papers" dir=forward]
+	N1 -> S0 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed label="optimizes UX" dir=forward]
+	S0 -> N11 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#9575CD" penwidth=1.5 style=dashed 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_medium/diagrams_229.txt b/test/diagrams/scanned_medium/diagrams_229.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1afa5471af10d5594130f69896ae9396b4cbe010
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_229.txt
@@ -0,0 +1,19 @@
+<Algorithm Updates Monitoring, ranks results, On_Page SEO>
+<Crawling Websites, connectedTo, Algorithm Updates Monitoring>
+<Crawling Websites, connectedTo, Featured Snippets Optimization>
+<Featured Snippets Optimization, connectedTo, Algorithm Updates Monitoring>
+<Featured Snippets Optimization, connectedTo, Image Search>
+<Featured Snippets Optimization, connectedTo, Paid Search Advertising>
+<Featured Snippets Optimization, connectedTo, Ranking Algorithms>
+<Featured Snippets Optimization, connectedTo, User Experience for Search>
+<Featured Snippets Optimization, optimizes UX, Video Search>
+<Image Search, optimizes off_page, Search Engine Marketing Strategy>
+<Knowledge Graph Integration, uses semantics, Semantic Search>
+<Local SEO, indexes academic papers, Knowledge Graph Integration>
+<On_Page SEO, manages international SEO, Image Search>
+<Ranking Algorithms, connectedTo, Schema Markup Implementation>
+<Schema Markup Implementation, connectedTo, Algorithm Updates Monitoring>
+<Search Engine Marketing Strategy, connectedTo, Knowledge Graph Integration>
+<Semantic Search, connectedTo, Video Search>
+<User Experience for Search, connectedTo, Local SEO>
+<Video Search, analyzes competitors, Paid Search Advertising>
diff --git a/test/diagrams/scanned_medium/diagrams_23.dot b/test/diagrams/scanned_medium/diagrams_23.dot
new file mode 100644
index 0000000000000000000000000000000000000000..62b934441e7bd8b36c1a81d8f26237dfad985ed0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_23.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=TB
+	N0 [label="Home Security System Activation" color="#DCE775" fillcolor="#F9FBE7" shape=document style=filled]
+	N1 [label="Emergency Service Connection" color="#FFB74D" fillcolor="#FFF3E0" shape=box style=filled]
+	N2 [label="Curtain Automation" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N3 [label="Power Outage Notification" color="#DCE775" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N4 [label="Smart Plug Management" color="#FFB74D" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N5 [label="Child Monitoring" color="#DCE775" fillcolor="#F9FBE7" shape=database style=filled]
+	N6 [label="Window Sensor Monitoring" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+	N7 [label="Routine Scheduling" color="#FFB74D" fillcolor="#FFF3E0" shape=database style=filled]
+	N8 [label="Air Quality Monitoring" color="#DCE775" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N9 [label="Lighting Automation" color="#FFB74D" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=dashed label="diagnoses" dir=forward]
+	N1 -> N2 [color="#FFB74D" penwidth=1.5 style=solid label="lights" dir=forward]
+	N2 -> N3 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="assists" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="automates" dir=forward]
+	N5 -> N6 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#5C6BC0" penwidth=1.5 style=dashed label="adjusts" dir=forward]
+	N7 -> N8 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#5C6BC0" penwidth=1.5 style=dashed label="schedules" dir=forward]
+	N3 -> N7 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_23.txt b/test/diagrams/scanned_medium/diagrams_23.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9119167eb8f3a47ba54c7e9f5ff9b8fef4144abf
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_23.txt
@@ -0,0 +1,10 @@
+<Air Quality Monitoring, schedules, Lighting Automation>
+<Child Monitoring, connectedTo, Window Sensor Monitoring>
+<Curtain Automation, connectedTo, Power Outage Notification>
+<Emergency Service Connection, lights, Curtain Automation>
+<Home Security System Activation, diagnoses, Emergency Service Connection>
+<Power Outage Notification, assists, Smart Plug Management>
+<Power Outage Notification, connectedTo, Routine Scheduling>
+<Routine Scheduling, connectedTo, Air Quality Monitoring>
+<Smart Plug Management, automates, Child Monitoring>
+<Window Sensor Monitoring, adjusts, Routine Scheduling>
diff --git a/test/diagrams/scanned_medium/diagrams_230.dot b/test/diagrams/scanned_medium/diagrams_230.dot
new file mode 100644
index 0000000000000000000000000000000000000000..48a5facd4b23b53a11a43e28cefc5aab0d5379ca
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_230.dot
@@ -0,0 +1,57 @@
+digraph {
+	rankdir=RL
+	N0 [label="Rank Tracking" color="#C2B2F0" fillcolor="#EFE6FF" shape=ellipse style=filled]
+	N1 [label="Schema Markup Implementation" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	N2 [label="International SEO" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+	N3 [label="Crawling Websites" color="#E91E63" fillcolor="#F8BBD0" shape=database style=filled]
+	N4 [label="Competitor Keyword Analysis" color="#C2B2F0" fillcolor="#EFE6FF" shape=database style=filled]
+	N5 [label="On_Page SEO" color="#E91E63" fillcolor="#F8BBD0" shape=document style=filled]
+	N6 [label="News Search" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	N7 [label="Keyword Research" color="#C2B2F0" fillcolor="#EFE6FF" shape=rect style=filled]
+	N8 [label="Semantic Search" color="#F44336" fillcolor="#FFCDD2" shape=diamond style=filled]
+	N9 [label="Query Processing" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N10 [label="Google My Business Management" color="#C2B2F0" fillcolor="#EFE6FF" shape=database style=filled]
+	N11 [label="Mobile_First Indexing" color="#C2B2F0" fillcolor="#EFE6FF" shape=hexagon style=filled]
+	N12 [label="Image Search" color="#C2B2F0" fillcolor="#EFE6FF" shape=predefinedprocess style=filled]
+	S0 [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="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Technical SEO {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Technical SEO"
+		nest0_0 [label="Search Result Display" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+		nest0_1 [label="Personalized Search Results" color="#F44336" fillcolor="#FFCDD2" shape=rect style=filled]
+		nest0_2 [label="Search Engine Marketing Strategy" color="#E91E63" fillcolor="#F8BBD0" shape=preparation style=filled]
+		nest0_3 [label="Featured Snippets Optimization" color="#C2B2F0" fillcolor="#EFE6FF" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#F44336" penwidth=1.5 style=dashed label="interprets analytics" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid label="handles negative SEO" dir=forward]
+	nest0_0 -> nest0_1 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#E91E63" penwidth=1.5 style=solid label="personalizes results" dir=forward]
+	nest0_2 -> nest0_3 [color="#C2B2F0" penwidth=1.5 style=dashed label="optimizes for mobile" dir=forward]
+	N3 -> nest0_0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> S0 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#E91E63" penwidth=1.5 style=dashed label="optimizes off_page" dir=forward]
+	S0 -> N7 [color="#C2B2F0" penwidth=1.5 style=dashed label="handles shopping queries" dir=forward]
+	S0 -> N12 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#000000" penwidth=1.5 style=solid label="processes queries" dir=forward]
+	N2 -> M0 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N11 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#C2B2F0" penwidth=1.5 style=solid label="optimizes keywords" dir=forward]
+	N2 -> M1 [color="#F44336" penwidth=1.5 style=dashed label="optimizes local search" dir=forward]
+	N1 -> M1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_230.txt b/test/diagrams/scanned_medium/diagrams_230.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1afb9064f2fc31e9a48842aa2e2be7ad7b5486e3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_230.txt
@@ -0,0 +1,26 @@
+<Competitor Keyword Analysis, connectedTo, On_Page SEO>
+<Crawling Websites, connectedTo, Competitor Keyword Analysis>
+<Crawling Websites, connectedTo, Search Result Display>
+<Featured Snippets Optimization, connectedTo, International SEO>
+<Google My Business Management, connectedTo, Mobile_First Indexing>
+<International SEO, connectedTo, Crawling Websites>
+<International SEO, connectedTo, Mobile_First Indexing>
+<International SEO, optimizes local search, On_Page SEO>
+<Keyword Research, connectedTo, Semantic Search>
+<Mobile_First Indexing, handles negative SEO, Image Search>
+<News Search, connectedTo, Keyword Research>
+<News Search, processes queries, Mobile_First Indexing>
+<On_Page SEO, connectedTo, Image Search>
+<On_Page SEO, connectedTo, News Search>
+<On_Page SEO, handles shopping queries, Keyword Research>
+<On_Page SEO, optimizes off_page, Mobile_First Indexing>
+<Personalized Search Results, personalizes results, Search Engine Marketing Strategy>
+<Query Processing, interprets analytics, Google My Business Management>
+<Rank Tracking, connectedTo, Schema Markup Implementation>
+<Rank Tracking, optimizes keywords, On_Page SEO>
+<Schema Markup Implementation, connectedTo, International SEO>
+<Schema Markup Implementation, connectedTo, On_Page SEO>
+<Search Engine Marketing Strategy, optimizes for mobile, Featured Snippets Optimization>
+<Search Result Display, connectedTo, Personalized Search Results>
+<Semantic Search, connectedTo, Mobile_First Indexing>
+<Semantic Search, connectedTo, Query Processing>
diff --git a/test/diagrams/scanned_medium/diagrams_231.dot b/test/diagrams/scanned_medium/diagrams_231.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d9301374dcbf2ab26287ec6ab8fad31be5a0bb68
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_231.dot
@@ -0,0 +1,51 @@
+digraph {
+	rankdir=TB
+	N0 [label="Negative SEO Prevention" color="#5C6BC0" fillcolor="#E8EAF6" shape=action style=filled]
+	N1 [label="Shopping Search" color="#FFA726" fillcolor="#FFF3E0" shape=preparation style=filled]
+	N2 [label="Keyword Research" color="#FFA726" fillcolor="#FFF3E0" shape=diamond style=filled]
+	N3 [label="Algorithm Updates Monitoring" color="#4DB6AC" fillcolor="#E0F2F1" shape=box style=filled]
+	N4 [label="Personalized Search Results" color="#FFA726" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+	N5 [label="On_Page SEO" color="#FFA726" fillcolor="#FFF3E0" shape=predefinedprocess style=filled]
+	N6 [label="Content Quality Assessment" color="#FFA726" fillcolor="#FFF3E0" shape=vnode_shape style=filled]
+	N7 [label="Rank Tracking" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	N8 [label="Video Search" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	S0 [label="" color="#4DB6AC" fillcolor="#E0F2F1" 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="#5C6BC0" fillcolor="#E8EAF6" 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_Paid Search Advertising {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Paid Search Advertising"
+		nest0_0 [label="Competitor Keyword Analysis" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+		nest0_1 [label="Knowledge Graph Integration" color="#FFA726" fillcolor="#FFF3E0" shape=diamond style=filled]
+		nest0_2 [label="Search Engine Optimization" color="#5C6BC0" fillcolor="#E8EAF6" shape=diamond style=filled]
+		nest0_3 [label="Off_Page SEO" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+	}
+	N0 -> N1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#5C6BC0" 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 dir=forward]
+	N6 -> N7 [color="#5C6BC0" penwidth=1.5 style=dashed label="personalizes results" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N6 [color="#5C6BC0" penwidth=1.5 style=solid label="manages SEM" dir=forward]
+	N2 -> S0 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=dashed label="optimizes off_page" dir=forward]
+	S0 -> N4 [color="#5C6BC0" penwidth=1.5 style=solid label="processes queries" dir=forward]
+	N5 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#FFA726" penwidth=1.5 style=solid label="optimizes UX" dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=solid label="interprets analytics" dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N8 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#4DB6AC" penwidth=1.5 style=solid label="optimizes on_page" dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_231.txt b/test/diagrams/scanned_medium/diagrams_231.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9c86eed8056ffe55cd3268f659933161d5de09f0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_231.txt
@@ -0,0 +1,21 @@
+<Algorithm Updates Monitoring, connectedTo, Personalized Search Results>
+<Competitor Keyword Analysis, connectedTo, Knowledge Graph Integration>
+<Content Quality Assessment, personalizes results, Rank Tracking>
+<Keyword Research, connectedTo, Algorithm Updates Monitoring>
+<Keyword Research, optimizes off_page, Video Search>
+<Keyword Research, processes queries, Personalized Search Results>
+<Knowledge Graph Integration, connectedTo, Search Engine Optimization>
+<Negative SEO Prevention, connectedTo, Shopping Search>
+<Negative SEO Prevention, connectedTo, Video Search>
+<Off_Page SEO, manages SEM, Content Quality Assessment>
+<On_Page SEO, connectedTo, Content Quality Assessment>
+<On_Page SEO, connectedTo, Video Search>
+<On_Page SEO, interprets analytics, Video Search>
+<On_Page SEO, optimizes UX, Rank Tracking>
+<Personalized Search Results, connectedTo, On_Page SEO>
+<Personalized Search Results, connectedTo, Video Search>
+<Personalized Search Results, optimizes on_page, Video Search>
+<Rank Tracking, connectedTo, Video Search>
+<Search Engine Optimization, connectedTo, Off_Page SEO>
+<Shopping Search, connectedTo, Competitor Keyword Analysis>
+<Shopping Search, connectedTo, Keyword Research>
diff --git a/test/diagrams/scanned_medium/diagrams_232.dot b/test/diagrams/scanned_medium/diagrams_232.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d2cafa7a888f129b441e93ed6d307df1ae93c214
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_232.dot
@@ -0,0 +1,50 @@
+digraph {
+	rankdir=BT
+	N0 [label="Access Governance" color="#4DD0E1" fillcolor="#C9F0F0" shape=multipledocuments style=filled]
+	N1 [label="Non_Repudiation" color="#4DD0E1" fillcolor="#C9F0F0" shape=ellipse style=filled]
+	N2 [label="Federated Identity Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+	N3 [label="Blockchain_based Identity" color="#E57373" fillcolor="#FFEBEE" shape=action style=filled]
+	N4 [label="Fraud Detection in Identity" color="#4DD0E1" fillcolor="#C9F0F0" shape=preparation style=filled]
+	N5 [label="Consent Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=document style=filled]
+	N6 [label="User Provisioning" color="#CD8FF2" fillcolor="#ECCFF5" shape=preparation style=filled]
+	N7 [label="Single Sign_On" color="#4DD0E1" fillcolor="#C9F0F0" shape=action style=filled]
+	N8 [label="Risk_Based Authentication" color="#CD8FF2" fillcolor="#ECCFF5" shape=preparation style=filled]
+	N9 [label="Digital Certificates" color="#E57373" fillcolor="#FFEBEE" shape=parallelogram style=filled]
+	N10 [label="De_provisioning" color="#E57373" fillcolor="#FFEBEE" shape=parallelogram style=filled]
+	N11 [label="Workforce Identity Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=parallelogram style=filled]
+	N12 [label="API Security for Identity" color="#E57373" fillcolor="#FFEBEE" shape=parallelogram style=filled]
+	S0 [label="" color="#CD8FF2" fillcolor="#ECCFF5" 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]
+	subgraph cluster_Social Login Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Social Login Integration"
+		nest0_0 [label="Privacy Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=document style=filled]
+		nest0_1 [label="Credential Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=rectangle style=filled]
+		nest0_2 [label="User Registration" color="#E57373" fillcolor="#FFEBEE" shape=database style=filled]
+		nest0_3 [label="Identity Verification" color="#E57373" fillcolor="#FFEBEE" shape=document style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#CD8FF2" penwidth=1.5 style=dashed label="manages consents" dir=forward]
+	N6 -> N7 [color="#E57373" penwidth=1.5 style=dashed label="stores attributes" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#4DD0E1" penwidth=1.5 style=dashed label="authorizes access" dir=forward]
+	N9 -> N10 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#CD8FF2" penwidth=1.5 style=solid label="ensures privacy" dir=forward]
+	N11 -> N12 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#E57373" penwidth=1.5 style=solid label="issues verifiable credentials" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed label="performs KYCs" dir=forward]
+	N1 -> nest0_0 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N5 [color="#E57373" penwidth=1.5 style=dashed label="federates identities" dir=forward]
+	N2 -> S0 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#E57373" penwidth=1.5 style=dashed label="minimizes data" dir=forward]
+	M0 -> N9 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_232.txt b/test/diagrams/scanned_medium/diagrams_232.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6e449d453959092f1b838f70f4dcc0fdc273da7a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_232.txt
@@ -0,0 +1,21 @@
+<Access Governance, connectedTo, Non_Repudiation>
+<Blockchain_based Identity, connectedTo, Fraud Detection in Identity>
+<Consent Management, manages consents, User Provisioning>
+<Credential Management, connectedTo, User Registration>
+<De_provisioning, ensures privacy, Workforce Identity Management>
+<Digital Certificates, connectedTo, De_provisioning>
+<Federated Identity Management, connectedTo, API Security for Identity>
+<Federated Identity Management, connectedTo, Blockchain_based Identity>
+<Federated Identity Management, connectedTo, User Provisioning>
+<Fraud Detection in Identity, connectedTo, Consent Management>
+<Fraud Detection in Identity, minimizes data, Digital Certificates>
+<Identity Verification, federates identities, Consent Management>
+<Non_Repudiation, connectedTo, Digital Certificates>
+<Non_Repudiation, connectedTo, Federated Identity Management>
+<Non_Repudiation, connectedTo, Privacy Management>
+<Privacy Management, issues verifiable credentials, Credential Management>
+<Risk_Based Authentication, authorizes access, Digital Certificates>
+<Single Sign_On, connectedTo, Risk_Based Authentication>
+<User Provisioning, stores attributes, Single Sign_On>
+<User Registration, performs KYCs, Identity Verification>
+<Workforce Identity Management, connectedTo, API Security for Identity>
diff --git a/test/diagrams/scanned_medium/diagrams_233.dot b/test/diagrams/scanned_medium/diagrams_233.dot
new file mode 100644
index 0000000000000000000000000000000000000000..25cf66883fe170689c78fa724ea5ebae1f5a2725
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_233.dot
@@ -0,0 +1,36 @@
+digraph {
+	rankdir=TB
+	N0 [label="Digital Certificates" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N1 [label="Credential Management" color="#00BCD4" fillcolor="#E0F7FA" shape=preparation style=filled]
+	N2 [label="De_provisioning" color="#26A69A" fillcolor="#E0F2F1" shape=predefinedprocess style=filled]
+	N3 [label="Single Sign_On" color="#26A69A" fillcolor="#E0F2F1" shape=document style=filled]
+	N4 [label="User Provisioning" color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+	N5 [label="Authentication" color="#00BCD4" fillcolor="#E0F7FA" shape=multipledocuments style=filled]
+	M0 [label="" color="#00BCD4" fillcolor="#E0F7FA" 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_Adaptive Authentication {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Adaptive Authentication"
+		nest0_0 [label="API Security for Identity" color="#00BCD4" fillcolor="#E0F7FA" shape=preparation style=filled]
+		nest0_1 [label="Identity Proofing" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+		nest0_2 [label="Password Management" color="#00BCD4" fillcolor="#E0F7FA" shape=rect style=filled]
+		nest0_3 [label="Decentralized Identifiers" color="#673AB7" fillcolor="#D1C4E9" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#26A69A" penwidth=1.5 style=solid label="performs KYCs" dir=forward]
+	N1 -> N2 [color="#26A69A" penwidth=1.5 style=dashed label="creates portable identities" dir=forward]
+	N2 -> N3 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#26A69A" 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="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N2 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#26A69A" penwidth=1.5 style=solid label="provides verifiable proofs" dir=forward]
+	M0 -> N3 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#26A69A" penwidth=1.5 style=solid label="manages workforces" dir=forward]
+	M1 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_233.txt b/test/diagrams/scanned_medium/diagrams_233.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6045e428cced2c56011351060ed4df48ab501bfc
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_233.txt
@@ -0,0 +1,14 @@
+<API Security for Identity, connectedTo, Identity Proofing>
+<Credential Management, connectedTo, API Security for Identity>
+<Credential Management, connectedTo, Single Sign_On>
+<Credential Management, creates portable identities, De_provisioning>
+<De_provisioning, connectedTo, Single Sign_On>
+<Decentralized Identifiers, connectedTo, De_provisioning>
+<Digital Certificates, manages workforces, Authentication>
+<Digital Certificates, performs KYCs, Credential Management>
+<Digital Certificates, provides verifiable proofs, Single Sign_On>
+<Identity Proofing, connectedTo, Password Management>
+<Password Management, connectedTo, Decentralized Identifiers>
+<Single Sign_On, connectedTo, Authentication>
+<Single Sign_On, connectedTo, User Provisioning>
+<User Provisioning, connectedTo, Authentication>
diff --git a/test/diagrams/scanned_medium/diagrams_234.dot b/test/diagrams/scanned_medium/diagrams_234.dot
new file mode 100644
index 0000000000000000000000000000000000000000..33c04909a7191c74be4887b94f601437963eb052
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_234.dot
@@ -0,0 +1,36 @@
+digraph {
+	rankdir=TB
+	N0 [label="Federated Identity Management" color="#42A5F5" fillcolor="#F1F8FF" shape=predefinedprocess style=filled]
+	N1 [label="Attribute Management" color="#AF56A6" fillcolor="#DDCEDD" shape=multipledocuments style=filled]
+	N2 [label="Authorization" color="#AF56A6" fillcolor="#DDCEDD" shape=vnode_shape style=filled]
+	N3 [label="Portable Identities" color="#81C784" fillcolor="#F1F8E9" shape=vnode_shape style=filled]
+	N4 [label="Biometric Authentication" color="#AF56A6" fillcolor="#DDCEDD" shape=predefinedprocess style=filled]
+	N5 [label="Password Management" color="#AF56A6" fillcolor="#DDCEDD" shape=rectangle style=filled]
+	N6 [label="Social Login Integration" color="#42A5F5" fillcolor="#F1F8FF" shape=inputoutput style=filled]
+	S0 [label="" color="#42A5F5" fillcolor="#F1F8FF" 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]
+	subgraph cluster_User Registration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="User Registration"
+		nest0_0 [label="Data Minimization Principles" color="#AF56A6" fillcolor="#DDCEDD" shape=rectangle style=filled]
+		nest0_1 [label="Credential Management" color="#AF56A6" fillcolor="#DDCEDD" shape=inputoutput style=filled]
+		nest0_2 [label="Decentralized Identifiers" color="#81C784" fillcolor="#F1F8E9" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#AF56A6" penwidth=1.5 style=dashed label="provides IDaaS" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="manages credentials" dir=forward]
+	N3 -> N4 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N1 [color="#81C784" penwidth=1.5 style=dashed label="de_provisions users" dir=forward]
+	N2 -> S0 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#81C784" penwidth=1.5 style=solid label="governs access" dir=forward]
+	N0 -> M1 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_234.txt b/test/diagrams/scanned_medium/diagrams_234.txt
new file mode 100644
index 0000000000000000000000000000000000000000..773feac36effd854823cd03c7ff17f279091dcbb
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_234.txt
@@ -0,0 +1,14 @@
+<Attribute Management, connectedTo, Portable Identities>
+<Attribute Management, provides IDaaS, Authorization>
+<Authorization, connectedTo, Social Login Integration>
+<Authorization, governs access, Password Management>
+<Authorization, manages credentials, Portable Identities>
+<Biometric Authentication, connectedTo, Password Management>
+<Credential Management, connectedTo, Decentralized Identifiers>
+<Data Minimization Principles, connectedTo, Credential Management>
+<Decentralized Identifiers, de_provisions users, Attribute Management>
+<Federated Identity Management, connectedTo, Attribute Management>
+<Federated Identity Management, connectedTo, Portable Identities>
+<Password Management, connectedTo, Data Minimization Principles>
+<Password Management, connectedTo, Social Login Integration>
+<Portable Identities, connectedTo, Biometric Authentication>
diff --git a/test/diagrams/scanned_medium/diagrams_235.dot b/test/diagrams/scanned_medium/diagrams_235.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5fbcd9209ae938216c185e5fd5da4529fc76bb51
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_235.dot
@@ -0,0 +1,46 @@
+digraph {
+	rankdir=BT
+	N0 [label="Assessment Design" color="#C0CA33" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N1 [label="Personalized Learning Paths" color="#FF5722" fillcolor="#FFCCBC" shape=preparation style=filled]
+	N2 [label="Micro_credential Programs" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N3 [label="Enrollment and Retention Strategies" color="#4CAF50" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	N4 [label="Accessibility Features" color="#4CAF50" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N5 [label="Certification Issuance" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N6 [label="Gamification in Education" color="#4CAF50" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N7 [label="Virtual Field Trips" color="#C0CA33" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	N8 [label="Open Educational Resources Integration" color="#C0CA33" fillcolor="#F9FBE7" shape=action style=filled]
+	N9 [label="Feedback and Grading" color="#C0CA33" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N10 [label="Test Preparation Courses" color="#FF5722" fillcolor="#FFCCBC" shape=diamond style=filled]
+	N11 [label="Learning Analytics" color="#4CAF50" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	S0 [label="" color="#FF5722" fillcolor="#FFCCBC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Course Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Course Design"
+		nest0_0 [label="Parent or Guardian Communication" color="#4CAF50" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+		nest0_1 [label="Competency_Based Education" color="#FF5722" fillcolor="#FFCCBC" shape=preparation style=filled]
+		nest0_2 [label="Asynchronous Learning" color="#4CAF50" fillcolor="#C8E6C9" shape=preparation style=filled]
+		nest0_3 [label="Student Progress Tracking" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#C0CA33" penwidth=1.5 style=solid label="designs content" dir=forward]
+	N2 -> N3 [color="#FF5722" penwidth=1.5 style=dashed label="engages parents" dir=forward]
+	N3 -> N4 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="manages enrollments" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid label="creates courses" dir=forward]
+	nest0_2 -> nest0_3 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S0 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_2 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N9 -> N0 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_235.txt b/test/diagrams/scanned_medium/diagrams_235.txt
new file mode 100644
index 0000000000000000000000000000000000000000..87bfedf71d962e481ef7775b3f48346aeb33e602
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_235.txt
@@ -0,0 +1,20 @@
+<Accessibility Features, connectedTo, Asynchronous Learning>
+<Accessibility Features, connectedTo, Certification Issuance>
+<Assessment Design, connectedTo, Personalized Learning Paths>
+<Asynchronous Learning, connectedTo, Student Progress Tracking>
+<Certification Issuance, connectedTo, Gamification in Education>
+<Competency_Based Education, creates courses, Asynchronous Learning>
+<Enrollment and Retention Strategies, connectedTo, Accessibility Features>
+<Feedback and Grading, connectedTo, Assessment Design>
+<Feedback and Grading, manages enrollments, Test Preparation Courses>
+<Gamification in Education, connectedTo, Feedback and Grading>
+<Gamification in Education, connectedTo, Learning Analytics>
+<Gamification in Education, connectedTo, Virtual Field Trips>
+<Micro_credential Programs, engages parents, Enrollment and Retention Strategies>
+<Open Educational Resources Integration, connectedTo, Feedback and Grading>
+<Parent or Guardian Communication, connectedTo, Competency_Based Education>
+<Personalized Learning Paths, designs content, Micro_credential Programs>
+<Student Progress Tracking, connectedTo, Micro_credential Programs>
+<Test Preparation Courses, connectedTo, Learning Analytics>
+<Virtual Field Trips, connectedTo, Open Educational Resources Integration>
+<Virtual Field Trips, connectedTo, Parent or Guardian Communication>
diff --git a/test/diagrams/scanned_medium/diagrams_236.dot b/test/diagrams/scanned_medium/diagrams_236.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a69e78d91922872201c98d313bbdce6af8268bd7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_236.dot
@@ -0,0 +1,40 @@
+digraph {
+	rankdir=BT
+	N0 [label="Virtual Field Trips" color="#4FC3F7" fillcolor="#E1F5FE" shape=vnode_shape style=filled]
+	N1 [label="Asynchronous Learning" color="#4FC3F7" fillcolor="#E1F5FE" shape=database style=filled]
+	N2 [label="Personalized Learning Paths" color="#4FC3F7" fillcolor="#E1F5FE" shape=diamond style=filled]
+	N3 [label="Virtual Classroom Facilitation" color="#4FC3F7" fillcolor="#E1F5FE" shape=preparation style=filled]
+	N4 [label="Gamification in Education" color="#388E3C" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N5 [label="Competency_Based Education" color="#388E3C" fillcolor="#F1F8E9" shape=action style=filled]
+	N6 [label="Online Tutoring" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N7 [label="Feedback and Grading" color="#388E3C" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N8 [label="Assessment Design" color="#4FC3F7" fillcolor="#E1F5FE" shape=hexagon style=filled]
+	N9 [label="Student Progress Tracking" color="#00BCD4" fillcolor="#E0F7FA" shape=rect style=filled]
+	S1 [label="" color="#388E3C" fillcolor="#F1F8E9" 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_Learning Management System Administration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Learning Management System Administration"
+		nest0_0 [label="Collaborative Projects" color="#4FC3F7" fillcolor="#E1F5FE" shape=rectangle style=filled]
+		nest0_1 [label="Synchronous Learning" color="#388E3C" fillcolor="#F1F8E9" shape=box style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#388E3C" penwidth=1.5 style=dashed label="secures platforms" 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="#000000" penwidth=1.5 style=solid label="supports competency_based" dir=forward]
+	N5 -> N6 [color="#00BCD4" penwidth=1.5 style=solid label="uses blockchain for credentials" dir=forward]
+	N6 -> N7 [color="#4FC3F7" 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]
+	nest0_0 -> nest0_1 [color="#4FC3F7" penwidth=1.5 style=solid label="provides digital textbooks" dir=forward]
+	N4 -> nest0_0 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N3 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N4 -> S1 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_236.txt b/test/diagrams/scanned_medium/diagrams_236.txt
new file mode 100644
index 0000000000000000000000000000000000000000..87530e606f271d59bc4c813397aa5fd4986227b6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_236.txt
@@ -0,0 +1,16 @@
+<Assessment Design, connectedTo, Student Progress Tracking>
+<Asynchronous Learning, secures platforms, Personalized Learning Paths>
+<Collaborative Projects, provides digital textbooks, Synchronous Learning>
+<Competency_Based Education, uses blockchain for credentials, Online Tutoring>
+<Feedback and Grading, connectedTo, Assessment Design>
+<Gamification in Education, connectedTo, Assessment Design>
+<Gamification in Education, connectedTo, Collaborative Projects>
+<Gamification in Education, connectedTo, Online Tutoring>
+<Gamification in Education, supports competency_based, Competency_Based Education>
+<Online Tutoring, connectedTo, Feedback and Grading>
+<Personalized Learning Paths, connectedTo, Virtual Classroom Facilitation>
+<Synchronous Learning, connectedTo, Virtual Classroom Facilitation>
+<Virtual Classroom Facilitation, connectedTo, Competency_Based Education>
+<Virtual Classroom Facilitation, connectedTo, Gamification in Education>
+<Virtual Field Trips, connectedTo, Asynchronous Learning>
+<Virtual Field Trips, connectedTo, Competency_Based Education>
diff --git a/test/diagrams/scanned_medium/diagrams_237.txt b/test/diagrams/scanned_medium/diagrams_237.txt
new file mode 100644
index 0000000000000000000000000000000000000000..bdddb54fc23c9a92d7a984c53385c654c3813537
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_237.txt
@@ -0,0 +1,22 @@
+<AI in Online Education, connectedTo, Competency_Based Education>
+<Blended Learning Models, connectedTo, Bootcamp Development>
+<Blended Learning Models, connectedTo, Instructor Training>
+<Blended Learning Models, provides digital textbooks, AI in Online Education>
+<Bootcamp Development, applies learning design, Micro_credential Programs>
+<Competency_Based Education, supports SEL, Bootcamp Development>
+<Course Evaluation, connectedTo, AI in Online Education>
+<Course Evaluation, connectedTo, Discussion Forum Moderation>
+<Course Evaluation, connectedTo, Language Learning Platforms>
+<Course Evaluation, connectedTo, Virtual Classroom Facilitation>
+<Course Evaluation, issues certificates, Blended Learning Models>
+<Discussion Forum Moderation, connectedTo, Blended Learning Models>
+<Discussion Forum Moderation, connectedTo, Personalized Learning Paths>
+<Instructor Training, connectedTo, Virtual Classroom Facilitation>
+<Language Learning Platforms, provides formative assessment, Blended Learning Models>
+<Micro_credential Programs, connectedTo, Learning Analytics>
+<Personalized Learning Paths, connectedTo, Blended Learning Models>
+<Personalized Learning Paths, connectedTo, Virtual Field Trips>
+<Personalized Learning Paths, delivers lectures, Language Learning Platforms>
+<Synchronous Learning, uses adaptive systems, Micro_credential Programs>
+<Virtual Classroom Facilitation, connectedTo, AI in Online Education>
+<Virtual Field Trips, connectedTo, Synchronous Learning>
diff --git a/test/diagrams/scanned_medium/diagrams_238.dot b/test/diagrams/scanned_medium/diagrams_238.dot
new file mode 100644
index 0000000000000000000000000000000000000000..08fb7f26064d977bcb5ae00a2b24aba18a0c6456
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_238.dot
@@ -0,0 +1,57 @@
+digraph {
+	rankdir=RL
+	N0 [label="Course Content Development" color="#9FA9E1" fillcolor="#D6D9F0" shape=predefinedprocess style=filled]
+	N1 [label="Instructor_Led Sessions" color="#80DDEA" fillcolor="#D3F7F9" shape=action style=filled]
+	N2 [label="Engagement Metrics Tracking" color="#9FA9E1" fillcolor="#D6D9F0" shape=multipledocuments style=filled]
+	N3 [label="Self_Paced Learning Tracks" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N4 [label="Industry Collaboration for Content" color="#9FA9E1" fillcolor="#D6D9F0" shape=action style=filled]
+	N5 [label="Skill_Based Learning Outcomes" color="#9FA9E1" fillcolor="#D6D9F0" shape=diamond style=filled]
+	N6 [label="Platform Selection" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N7 [label="Financial Aid for Learners" color="#80DDEA" fillcolor="#D3F7F9" shape=box style=filled]
+	N8 [label="Course Retirement Planning" color="#A188DB" fillcolor="#DED7F0" shape=rectangle style=filled]
+	N9 [label="Micro_credential Stacking" color="#80DDEA" fillcolor="#D3F7F9" shape=preparation style=filled]
+	N10 [label="Marketing to Global Audience" color="#80DDEA" fillcolor="#D3F7F9" shape=diamond style=filled]
+	N11 [label="Peer Grading Implementation" color="#9FA9E1" fillcolor="#D6D9F0" shape=inputoutput style=filled]
+	N12 [label="Mobile Learning Experience" color="#A188DB" fillcolor="#DED7F0" shape=document style=filled]
+	N13 [label="University Partnerships" color="#80DDEA" fillcolor="#D3F7F9" shape=database style=filled]
+	N14 [label="Career Pathway Mapping" color="#A188DB" fillcolor="#DED7F0" shape=parallelogram 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="#A188DB" fillcolor="#DED7F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Forum Moderation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Forum Moderation"
+		nest0_0 [label="Employer Recognition" color="#A188DB" fillcolor="#DED7F0" shape=diamond style=filled]
+		nest0_1 [label="Instructor Recruitment for MOOCs" color="#80DDEA" fillcolor="#D3F7F9" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="researches impact" dir=forward]
+	N1 -> N2 [color="#80DDEA" penwidth=1.5 style=dashed label="secures data" dir=forward]
+	N2 -> N3 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="supports learners" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#9FA9E1" penwidth=1.5 style=solid label="personalizes learning" dir=forward]
+	N9 -> N10 [color="#80DDEA" penwidth=1.5 style=dashed label="complies with regulations" dir=forward]
+	N10 -> N11 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=dashed label="manages instructors" dir=forward]
+	nest0_0 -> nest0_1 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N13 -> nest0_0 [color="#A188DB" penwidth=1.5 style=dashed label="manages registrations" dir=forward]
+	nest0_1 -> N3 [color="#A188DB" penwidth=1.5 style=solid label="funds development" dir=forward]
+	N5 -> S0 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=dashed label="provides technical support" dir=forward]
+	S1 -> N11 [color="#9FA9E1" penwidth=1.5 style=dashed label="expands reach" dir=forward]
+	S1 -> N9 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N8 -> M0 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N10 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_238.txt b/test/diagrams/scanned_medium/diagrams_238.txt
new file mode 100644
index 0000000000000000000000000000000000000000..53155eba964262dc103a7005d3dc01d69581f831
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_238.txt
@@ -0,0 +1,26 @@
+<Course Content Development, researches impact, Instructor_Led Sessions>
+<Course Retirement Planning, connectedTo, Marketing to Global Audience>
+<Course Retirement Planning, personalizes learning, Micro_credential Stacking>
+<Employer Recognition, connectedTo, Instructor Recruitment for MOOCs>
+<Engagement Metrics Tracking, connectedTo, Micro_credential Stacking>
+<Engagement Metrics Tracking, connectedTo, Self_Paced Learning Tracks>
+<Engagement Metrics Tracking, expands reach, Peer Grading Implementation>
+<Engagement Metrics Tracking, provides technical support, Platform Selection>
+<Financial Aid for Learners, connectedTo, Course Retirement Planning>
+<Industry Collaboration for Content, connectedTo, Skill_Based Learning Outcomes>
+<Instructor Recruitment for MOOCs, funds development, Self_Paced Learning Tracks>
+<Instructor_Led Sessions, connectedTo, Marketing to Global Audience>
+<Instructor_Led Sessions, secures data, Engagement Metrics Tracking>
+<Marketing to Global Audience, connectedTo, Peer Grading Implementation>
+<Micro_credential Stacking, complies with regulations, Marketing to Global Audience>
+<Mobile Learning Experience, connectedTo, University Partnerships>
+<Peer Grading Implementation, connectedTo, Mobile Learning Experience>
+<Platform Selection, supports learners, Financial Aid for Learners>
+<Self_Paced Learning Tracks, connectedTo, Industry Collaboration for Content>
+<Self_Paced Learning Tracks, connectedTo, Marketing to Global Audience>
+<Skill_Based Learning Outcomes, connectedTo, Micro_credential Stacking>
+<Skill_Based Learning Outcomes, connectedTo, Mobile Learning Experience>
+<Skill_Based Learning Outcomes, connectedTo, Peer Grading Implementation>
+<Skill_Based Learning Outcomes, connectedTo, Platform Selection>
+<University Partnerships, manages instructors, Career Pathway Mapping>
+<University Partnerships, manages registrations, Employer Recognition>
diff --git a/test/diagrams/scanned_medium/diagrams_239.dot b/test/diagrams/scanned_medium/diagrams_239.dot
new file mode 100644
index 0000000000000000000000000000000000000000..314123cbbbcfd4244cddc2cb1265104d0f70846d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_239.dot
@@ -0,0 +1,48 @@
+digraph {
+	rankdir=TB
+	N0 [label="Completion Rate Optimization" color="#607D8B" fillcolor="#CFD8DC" shape=action style=filled]
+	N1 [label="Assessment Creation" color="#607D8B" fillcolor="#CFD8DC" shape=vnode_shape style=filled]
+	N2 [label="Learner Support" color="#AABEC6" fillcolor="#E0E6E9" shape=rect style=filled]
+	N3 [label="Course Content Development" color="#8C9EFF" fillcolor="#D3D7EB" shape=parallelogram style=filled]
+	N4 [label="Specialization or Professional Certificate Programs" color="#AABEC6" fillcolor="#E0E6E9" shape=predefinedprocess style=filled]
+	N5 [label="Micro_credential Stacking" color="#8C9EFF" fillcolor="#D3D7EB" shape=vnode_shape style=filled]
+	N6 [label="Mobile Learning Experience" color="#AABEC6" fillcolor="#E0E6E9" shape=multipledocuments style=filled]
+	N7 [label="Translation and Localization" color="#607D8B" fillcolor="#CFD8DC" shape=multipledocuments style=filled]
+	N8 [label="Learner Feedback Analysis" color="#AABEC6" fillcolor="#E0E6E9" shape=rect style=filled]
+	N9 [label="Course Retirement Planning" color="#607D8B" fillcolor="#CFD8DC" shape=action style=filled]
+	N10 [label="Financial Aid for Learners" color="#8C9EFF" fillcolor="#D3D7EB" shape=preparation style=filled]
+	N11 [label="Forum Moderation" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	S0 [label="" color="#AABEC6" fillcolor="#E0E6E9" 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]
+	subgraph cluster_Instructor Recruitment for MOOCs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Instructor Recruitment for MOOCs"
+		nest0_0 [label="Instructor_Led Sessions" color="#8C9EFF" fillcolor="#D3D7EB" shape=rect style=filled]
+		nest0_1 [label="Course Audit Options" color="#AABEC6" fillcolor="#E0E6E9" shape=document style=filled]
+		nest0_2 [label="Certificate of Completion Issuance" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+		nest0_3 [label="Video Lecture Production" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#AABEC6" penwidth=1.5 style=solid label="provides accessibility" dir=forward]
+	N5 -> N6 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="translates content" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="researches impact" dir=forward]
+	N8 -> N9 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="develops content" dir=forward]
+	nest0_1 -> nest0_2 [color="#AABEC6" penwidth=1.5 style=solid label="manages instructors" dir=forward]
+	nest0_2 -> nest0_3 [color="#AABEC6" penwidth=1.5 style=solid label="designs courses" dir=forward]
+	N9 -> nest0_0 [color="#8C9EFF" penwidth=1.5 style=dashed label="expands reach" dir=forward]
+	nest0_3 -> N4 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#8C9EFF" penwidth=1.5 style=dashed label="supports diverse learners" dir=forward]
+	N2 -> M0 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#8C9EFF" penwidth=1.5 style=solid 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_medium/diagrams_239.txt b/test/diagrams/scanned_medium/diagrams_239.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d338bebed682860cc6a03b228529dda094e6bd3f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_239.txt
@@ -0,0 +1,19 @@
+<Assessment Creation, connectedTo, Learner Support>
+<Certificate of Completion Issuance, designs courses, Video Lecture Production>
+<Completion Rate Optimization, connectedTo, Assessment Creation>
+<Completion Rate Optimization, connectedTo, Micro_credential Stacking>
+<Completion Rate Optimization, supports diverse learners, Course Retirement Planning>
+<Course Audit Options, manages instructors, Certificate of Completion Issuance>
+<Course Content Development, connectedTo, Specialization or Professional Certificate Programs>
+<Course Retirement Planning, connectedTo, Financial Aid for Learners>
+<Course Retirement Planning, expands reach, Instructor_Led Sessions>
+<Financial Aid for Learners, connectedTo, Forum Moderation>
+<Instructor_Led Sessions, develops content, Course Audit Options>
+<Learner Feedback Analysis, connectedTo, Course Retirement Planning>
+<Learner Support, connectedTo, Course Content Development>
+<Learner Support, connectedTo, Micro_credential Stacking>
+<Micro_credential Stacking, connectedTo, Mobile Learning Experience>
+<Mobile Learning Experience, translates content, Translation and Localization>
+<Specialization or Professional Certificate Programs, provides accessibility, Micro_credential Stacking>
+<Translation and Localization, researches impact, Learner Feedback Analysis>
+<Video Lecture Production, connectedTo, Specialization or Professional Certificate Programs>
diff --git a/test/diagrams/scanned_medium/diagrams_24.dot b/test/diagrams/scanned_medium/diagrams_24.dot
new file mode 100644
index 0000000000000000000000000000000000000000..df3f678a4d64ee7fd354869c3d0a9552fad21bcf
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_24.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=LR
+	N0 [label="Smart Traffic Lights" color="#00BCD4" fillcolor="#B2EBF2" shape=vnode_shape style=filled]
+	N1 [label="Environmental Sensor Network" color="#8C9EFF" fillcolor="#D3D7EB" shape=preparation style=filled]
+	N2 [label="Water Management System" color="#8C9EFF" fillcolor="#D3D7EB" shape=action style=filled]
+	N3 [label="Waste Management Optimization" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	N4 [label="E_governance Services" color="#9C27B0" fillcolor="#E1BEE7" shape=predefinedprocess style=filled]
+	N5 [label="Digital Kiosk Information" color="#8C9EFF" fillcolor="#D3D7EB" shape=rectangle style=filled]
+	N6 [label="Smart Lighting" color="#9C27B0" fillcolor="#E1BEE7" shape=hexagon style=filled]
+	N7 [label="Urban Agriculture Support" color="#8C9EFF" fillcolor="#D3D7EB" shape=vnode_shape style=filled]
+	N8 [label="Traffic Flow Optimization" color="#8C9EFF" fillcolor="#D3D7EB" shape=rectangle style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#9C27B0" penwidth=1.5 style=solid label="measures" 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="#00BCD4" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="manages" dir=forward]
+	N6 -> N7 [color="#8C9EFF" penwidth=1.5 style=solid label="regulates" dir=forward]
+	N7 -> N8 [color="#00BCD4" penwidth=1.5 style=dashed label="funds" dir=forward]
+	N3 -> N0 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N8 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_24.txt b/test/diagrams/scanned_medium/diagrams_24.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e3dd18dc5e9095870f9e5a1746747b22df35aa83
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_24.txt
@@ -0,0 +1,10 @@
+<Digital Kiosk Information, manages, Smart Lighting>
+<E_governance Services, communicates, Digital Kiosk Information>
+<Environmental Sensor Network, measures, Water Management System>
+<Smart Lighting, regulates, Urban Agriculture Support>
+<Smart Traffic Lights, connectedTo, Environmental Sensor Network>
+<Urban Agriculture Support, funds, Traffic Flow Optimization>
+<Waste Management Optimization, connectedTo, E_governance Services>
+<Waste Management Optimization, connectedTo, Smart Traffic Lights>
+<Waste Management Optimization, connectedTo, Traffic Flow Optimization>
+<Water Management System, connectedTo, Waste Management Optimization>
diff --git a/test/diagrams/scanned_medium/diagrams_240.dot b/test/diagrams/scanned_medium/diagrams_240.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f181534781ce290ff8de0e07040b176aea0cf745
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_240.dot
@@ -0,0 +1,38 @@
+digraph {
+	rankdir=LR
+	N0 [label="Learner Feedback Analysis" color="#92C79A" fillcolor="#E8F0EA" shape=parallelogram style=filled]
+	N1 [label="Completion Rate Optimization" color="#90A4AE" fillcolor="#ECEFF1" shape=database style=filled]
+	N2 [label="Course Content Development" color="#2196F3" fillcolor="#BBDEFB" shape=ellipse style=filled]
+	N3 [label="Video Lecture Production" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	N4 [label="Employer Recognition" color="#92C79A" fillcolor="#E8F0EA" shape=rect style=filled]
+	N5 [label="Micro_credential Stacking" color="#2196F3" fillcolor="#BBDEFB" shape=inputoutput style=filled]
+	N6 [label="Skill_Based Learning Outcomes" color="#2196F3" fillcolor="#BBDEFB" shape=action style=filled]
+	N7 [label="Marketing to Global Audience" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	S0 [label="" color="#90A4AE" fillcolor="#ECEFF1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#92C79A" fillcolor="#E8F0EA" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Discussion Forum Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Discussion Forum Management"
+		nest0_0 [label="Instructor_Led Sessions" color="#90A4AE" fillcolor="#ECEFF1" shape=multipledocuments style=filled]
+		nest0_1 [label="Course Pilot Testing" color="#90A4AE" fillcolor="#ECEFF1" shape=document style=filled]
+	}
+	N0 -> N1 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="issues statements of accomplishment" dir=forward]
+	N4 -> N5 [color="#2196F3" penwidth=1.5 style=dashed label="localizes platforms" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N2 [color="#92C79A" penwidth=1.5 style=dashed label="evaluates effectiveness" dir=forward]
+	N0 -> S0 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#90A4AE" penwidth=1.5 style=solid label="manages certifications" dir=forward]
+	S0 -> N3 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#90A4AE" penwidth=1.5 style=dashed label="builds communities" dir=forward]
+	N0 -> M1 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N6 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_240.txt b/test/diagrams/scanned_medium/diagrams_240.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2f685082c1ff552090faa141b55302c850c6dad7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_240.txt
@@ -0,0 +1,16 @@
+<Completion Rate Optimization, connectedTo, Course Content Development>
+<Completion Rate Optimization, connectedTo, Skill_Based Learning Outcomes>
+<Course Content Development, connectedTo, Video Lecture Production>
+<Course Pilot Testing, evaluates effectiveness, Course Content Development>
+<Employer Recognition, localizes platforms, Micro_credential Stacking>
+<Instructor_Led Sessions, connectedTo, Course Pilot Testing>
+<Learner Feedback Analysis, connectedTo, Completion Rate Optimization>
+<Learner Feedback Analysis, connectedTo, Micro_credential Stacking>
+<Learner Feedback Analysis, connectedTo, Skill_Based Learning Outcomes>
+<Learner Feedback Analysis, connectedTo, Video Lecture Production>
+<Learner Feedback Analysis, manages certifications, Skill_Based Learning Outcomes>
+<Micro_credential Stacking, connectedTo, Skill_Based Learning Outcomes>
+<Skill_Based Learning Outcomes, connectedTo, Marketing to Global Audience>
+<Video Lecture Production, builds communities, Skill_Based Learning Outcomes>
+<Video Lecture Production, connectedTo, Instructor_Led Sessions>
+<Video Lecture Production, issues statements of accomplishment, Employer Recognition>
diff --git a/test/diagrams/scanned_medium/diagrams_241.dot b/test/diagrams/scanned_medium/diagrams_241.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5e4891754fdf4805a51a087e74708a551938667b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_241.dot
@@ -0,0 +1,76 @@
+digraph {
+	rankdir=TB
+	N0 [label="Investment Planning" color="#B8C0F5" fillcolor="#ECF0FD" shape=rectangle style=filled]
+	N1 [label="Income Verification" color="#FFF8A6" fillcolor="#FFFDE0" shape=hexagon style=filled]
+	N2 [label="Loan Processing" color="#B8C0F5" fillcolor="#ECF0FD" shape=rectangle style=filled]
+	N3 [label="KYC Validation" color="#FFF8A6" fillcolor="#FFFDE0" shape=parallelogram style=filled]
+	N4 [label="Treasury Management" color="#FFF8A6" fillcolor="#FFFDE0" shape=document style=filled]
+	N5 [label="Forex Trading" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+	N6 [label="Fund Disbursement" color="#B8C0F5" fillcolor="#ECF0FD" shape=parallelogram style=filled]
+	N7 [label="Blockchain Verification" color="#B8C0F5" fillcolor="#ECF0FD" shape=preparation style=filled]
+	N8 [label="IPO Launch" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N9 [label="Compliance Review" color="#73C6BC" fillcolor="#D0EFEE" shape=predefinedprocess style=filled]
+	N10 [label="Merger and Acquisition" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+	N11 [label="Fraud Check" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N12 [label="Credit Card Application" color="#B8C0F5" fillcolor="#ECF0FD" shape=preparation style=filled]
+	N13 [label="Transaction Logging" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N14 [label="Budgeting Analysis" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N15 [label="Mortgage Application" color="#FFF8A6" fillcolor="#FFFDE0" shape=rectangle style=filled]
+	N16 [label="Underwriting" color="#B8C0F5" fillcolor="#ECF0FD" shape=rectangle 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="#73C6BC" fillcolor="#D0EFEE" 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_Credit Scoring {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Credit Scoring"
+		nest0_0 [label="Payment Gateway Integration" color="#FFF8A6" fillcolor="#FFFDE0" shape=inputoutput style=filled]
+		nest0_1 [label="Financial Advisory" color="#B8C0F5" fillcolor="#ECF0FD" shape=rectangle style=filled]
+	}
+	subgraph cluster_Debt Collection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Debt Collection"
+		nest1_0 [label="Cryptocurrency Exchange" color="#B8C0F5" fillcolor="#ECF0FD" shape=hexagon style=filled]
+		nest1_1 [label="Account Verification" color="#73C6BC" fillcolor="#D0EFEE" shape=document style=filled]
+		nest1_2 [label="Wealth Management" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#73C6BC" 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 dir=forward]
+	N6 -> N7 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFF8A6" 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=dashed dir=forward]
+	N12 -> N13 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest0_0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N13 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N10 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N13 -> S1 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N12 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_241.txt b/test/diagrams/scanned_medium/diagrams_241.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f5f3f57fe5d820748be21cb28e48c1093f575468
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_241.txt
@@ -0,0 +1,33 @@
+<Account Verification, connectedTo, Wealth Management>
+<Blockchain Verification, connectedTo, IPO Launch>
+<Budgeting Analysis, connectedTo, Mortgage Application>
+<Compliance Review, connectedTo, Merger and Acquisition>
+<Credit Card Application, connectedTo, Transaction Logging>
+<Cryptocurrency Exchange, connectedTo, Account Verification>
+<Financial Advisory, connectedTo, IPO Launch>
+<Forex Trading, connectedTo, Blockchain Verification>
+<Forex Trading, connectedTo, Fund Disbursement>
+<Fraud Check, connectedTo, Credit Card Application>
+<Fund Disbursement, connectedTo, Blockchain Verification>
+<IPO Launch, connectedTo, Compliance Review>
+<IPO Launch, connectedTo, Payment Gateway Integration>
+<Income Verification, connectedTo, Credit Card Application>
+<Income Verification, connectedTo, Loan Processing>
+<Investment Planning, connectedTo, Blockchain Verification>
+<Investment Planning, connectedTo, Credit Card Application>
+<Investment Planning, connectedTo, Income Verification>
+<KYC Validation, connectedTo, Blockchain Verification>
+<KYC Validation, connectedTo, Budgeting Analysis>
+<KYC Validation, connectedTo, Forex Trading>
+<KYC Validation, connectedTo, Fund Disbursement>
+<KYC Validation, connectedTo, Treasury Management>
+<Loan Processing, connectedTo, KYC Validation>
+<Merger and Acquisition, connectedTo, Fraud Check>
+<Mortgage Application, connectedTo, Underwriting>
+<Payment Gateway Integration, connectedTo, Financial Advisory>
+<Transaction Logging, connectedTo, Budgeting Analysis>
+<Transaction Logging, connectedTo, Cryptocurrency Exchange>
+<Transaction Logging, connectedTo, Mortgage Application>
+<Transaction Logging, connectedTo, Underwriting>
+<Treasury Management, connectedTo, Forex Trading>
+<Wealth Management, connectedTo, Merger and Acquisition>
diff --git a/test/diagrams/scanned_medium/diagrams_242.dot b/test/diagrams/scanned_medium/diagrams_242.dot
new file mode 100644
index 0000000000000000000000000000000000000000..82b5a92cdac6d6473c775e6879e97d546dafc181
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_242.dot
@@ -0,0 +1,83 @@
+digraph {
+	rankdir=LR
+	N0 [label="Patient Transfer" color="#BA68C8" fillcolor="#F3E5F5" shape=inputoutput style=filled]
+	N1 [label="Surgery" color="#FFF8A6" fillcolor="#FFFDE0" shape=database style=filled]
+	N2 [label="Nutritional Counseling" color="#BA68C8" fillcolor="#F3E5F5" shape=rect style=filled]
+	N3 [label="Allergy Test" color="#BA68C8" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N4 [label="Telemedicine Consultation" color="#A188D0" fillcolor="#DACBE3" shape=vnode_shape style=filled]
+	N5 [label="Health Screening" color="#A188D0" fillcolor="#DACBE3" shape=rectangle style=filled]
+	N6 [label="Blood Test" color="#FFF8A6" fillcolor="#FFFDE0" shape=database style=filled]
+	N7 [label="Wound Care" color="#FFF8A6" fillcolor="#FFFDE0" shape=hexagon style=filled]
+	N8 [label="Treatment Plan" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N9 [label="Case Review" color="#FFF8A6" fillcolor="#FFFDE0" shape=inputoutput style=filled]
+	N10 [label="Discharge" color="#BA68C8" fillcolor="#F3E5F5" shape=inputoutput style=filled]
+	N11 [label="Patient Intake" color="#BA68C8" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N12 [label="Lab Test" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N13 [label="Home Care Visit" color="#FFF8A6" fillcolor="#FFFDE0" shape=inputoutput style=filled]
+	N14 [label="Biopsy" color="#BA68C8" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N15 [label="Symptom Monitoring" color="#BA68C8" fillcolor="#F3E5F5" shape=diamond style=filled]
+	N16 [label="Imaging Scan" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	S0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" 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="#FFF8A6" fillcolor="#FFFDE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#BA68C8" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#A188D0" fillcolor="#DACBE3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Insurance Claim {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Insurance Claim"
+		nest0_0 [label="Epidemiological Tracking" color="#BA68C8" fillcolor="#F3E5F5" shape=ellipse style=filled]
+		nest0_1 [label="Medication Dispensing" color="#A188D0" fillcolor="#DACBE3" shape=database style=filled]
+		nest0_2 [label="Mental Health Assessment" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+		nest0_3 [label="Patient Education" color="#BA68C8" fillcolor="#F3E5F5" shape=document style=filled]
+	}
+	subgraph cluster_Pain Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Pain Management"
+		nest1_0 [label="Physical Examination" color="#A188D0" fillcolor="#DACBE3" shape=document style=filled]
+		nest1_1 [label="Triage" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+		nest1_2 [label="Emergency Response" color="#FFF8A6" fillcolor="#FFFDE0" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="surveys" dir=forward]
+	N2 -> N3 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#BA68C8" penwidth=1.5 style=solid label="documents" dir=forward]
+	N7 -> N8 [color="#A188D0" penwidth=1.5 style=solid label="immunizes" dir=forward]
+	N8 -> N9 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#BA68C8" penwidth=1.5 style=dashed label="prescribes" dir=forward]
+	N13 -> N14 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#A188D0" penwidth=1.5 style=solid label="rehabilitates" dir=forward]
+	nest0_0 -> nest0_1 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N5 [color="#A188D0" 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="#A188D0" penwidth=1.5 style=dashed label="coordinates" dir=forward]
+	N14 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N15 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N7 -> S0 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#BA68C8" penwidth=1.5 style=dashed label="claims" dir=forward]
+	M0 -> N16 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N5 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_242.txt b/test/diagrams/scanned_medium/diagrams_242.txt
new file mode 100644
index 0000000000000000000000000000000000000000..59d2c548350cfe385f5b0a580c525aa48aee8673
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_242.txt
@@ -0,0 +1,36 @@
+<Allergy Test, connectedTo, Blood Test>
+<Allergy Test, connectedTo, Health Screening>
+<Allergy Test, connectedTo, Telemedicine Consultation>
+<Biopsy, connectedTo, Physical Examination>
+<Biopsy, connectedTo, Symptom Monitoring>
+<Blood Test, documents, Wound Care>
+<Case Review, connectedTo, Discharge>
+<Discharge, connectedTo, Patient Intake>
+<Emergency Response, connectedTo, Symptom Monitoring>
+<Epidemiological Tracking, connectedTo, Medication Dispensing>
+<Health Screening, connectedTo, Blood Test>
+<Health Screening, connectedTo, Imaging Scan>
+<Home Care Visit, connectedTo, Biopsy>
+<Lab Test, prescribes, Home Care Visit>
+<Medication Dispensing, connectedTo, Mental Health Assessment>
+<Mental Health Assessment, connectedTo, Patient Education>
+<Nutritional Counseling, claims, Imaging Scan>
+<Nutritional Counseling, connectedTo, Allergy Test>
+<Nutritional Counseling, connectedTo, Blood Test>
+<Nutritional Counseling, connectedTo, Epidemiological Tracking>
+<Patient Education, connectedTo, Health Screening>
+<Patient Intake, connectedTo, Lab Test>
+<Patient Transfer, connectedTo, Surgery>
+<Physical Examination, connectedTo, Triage>
+<Surgery, connectedTo, Case Review>
+<Surgery, connectedTo, Health Screening>
+<Surgery, connectedTo, Lab Test>
+<Surgery, surveys, Nutritional Counseling>
+<Symptom Monitoring, rehabilitates, Imaging Scan>
+<Telemedicine Consultation, connectedTo, Blood Test>
+<Telemedicine Consultation, connectedTo, Health Screening>
+<Treatment Plan, connectedTo, Case Review>
+<Triage, coordinates, Emergency Response>
+<Wound Care, connectedTo, Biopsy>
+<Wound Care, connectedTo, Case Review>
+<Wound Care, immunizes, Treatment Plan>
diff --git a/test/diagrams/scanned_medium/diagrams_243.dot b/test/diagrams/scanned_medium/diagrams_243.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b8e313ad6dd217c555e61a5293559da2c01d5cab
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_243.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=BT
+	N0 [label="Procurement" color="#2196F3" fillcolor="#BBDEFB" shape=document style=filled]
+	N1 [label="Automated Assembly" color="#9575CD" fillcolor="#EDE7F6" shape=database style=filled]
+	N2 [label="Ergonomics Assessment" color="#2196F3" fillcolor="#BBDEFB" shape=diamond style=filled]
+	N3 [label="Quality Control" color="#4CAF50" fillcolor="#C8E6C9" shape=multipledocuments style=filled]
+	N4 [label="Environmental Compliance" color="#2196F3" fillcolor="#BBDEFB" shape=predefinedprocess style=filled]
+	N5 [label="Safety Audit" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N6 [label="Inspection" color="#9575CD" fillcolor="#EDE7F6" shape=document style=filled]
+	N7 [label="Yield Optimization" color="#4CAF50" fillcolor="#C8E6C9" shape=rect style=filled]
+	N8 [label="Raw Material" color="#2196F3" fillcolor="#BBDEFB" shape=action style=filled]
+	N9 [label="Design Review" color="#9575CD" fillcolor="#EDE7F6" shape=action style=filled]
+	N10 [label="Logistics Planning" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N11 [label="Automated Guided Vehicle Operation" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N12 [label="Machine Calibration" color="#2196F3" fillcolor="#BBDEFB" shape=rect style=filled]
+	N13 [label="Production Scheduling" color="#9575CD" fillcolor="#EDE7F6" shape=document style=filled]
+	N14 [label="Painting" color="#2196F3" fillcolor="#BBDEFB" shape=ellipse style=filled]
+	N15 [label="Storage" color="#2196F3" fillcolor="#BBDEFB" shape=vnode_shape style=filled]
+	N16 [label="Tool Path Generation" color="#4CAF50" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	N17 [label="Assembly" color="#9575CD" fillcolor="#EDE7F6" shape=box 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]
+	M1 [label="" color="#9575CD" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Defect Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Defect Analysis"
+		nest0_0 [label="Shipping" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+		nest0_1 [label="Work_in_Progress Monitoring" color="#4CAF50" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+		nest0_2 [label="Batch Tracking" color="#4CAF50" fillcolor="#C8E6C9" shape=action style=filled]
+		nest0_3 [label="Supplier Qualification" color="#9575CD" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	}
+	subgraph cluster_Welding {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Welding"
+		nest1_0 [label="Parts Replacement" color="#4CAF50" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+		nest1_1 [label="Maintenance" color="#9575CD" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+		nest1_2 [label="Factory Layout Planning" color="#4CAF50" fillcolor="#C8E6C9" shape=rectangle style=filled]
+		nest1_3 [label="Recycling Process" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	}
+	N0 -> N1 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#9575CD" penwidth=1.5 style=solid label="cuts" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="mixes" 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="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#9575CD" penwidth=1.5 style=dashed label="repairs" dir=forward]
+	N9 -> N10 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#4CAF50" penwidth=1.5 style=solid label="receives" dir=forward]
+	N11 -> N12 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest0_0 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid label="assembles" dir=forward]
+	N12 -> nest1_0 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N6 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#4CAF50" penwidth=1.5 style=dashed label="schedules" dir=forward]
+	N7 -> M0 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	M0 -> N11 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> N1 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_243.txt b/test/diagrams/scanned_medium/diagrams_243.txt
new file mode 100644
index 0000000000000000000000000000000000000000..580344b661dffc5cd62e73de5f4b4ac5f006faaa
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_243.txt
@@ -0,0 +1,38 @@
+<Automated Assembly, connectedTo, Ergonomics Assessment>
+<Automated Assembly, connectedTo, Logistics Planning>
+<Automated Assembly, connectedTo, Safety Audit>
+<Automated Assembly, connectedTo, Shipping>
+<Automated Guided Vehicle Operation, connectedTo, Machine Calibration>
+<Batch Tracking, connectedTo, Supplier Qualification>
+<Design Review, connectedTo, Logistics Planning>
+<Environmental Compliance, mixes, Safety Audit>
+<Environmental Compliance, schedules, Automated Guided Vehicle Operation>
+<Ergonomics Assessment, connectedTo, Quality Control>
+<Factory Layout Planning, assembles, Recycling Process>
+<Factory Layout Planning, partOf, Factory Layout Planning>
+<Inspection, connectedTo, Yield Optimization>
+<Logistics Planning, receives, Automated Guided Vehicle Operation>
+<Machine Calibration, connectedTo, Parts Replacement>
+<Machine Calibration, connectedTo, Production Scheduling>
+<Maintenance, connectedTo, Factory Layout Planning>
+<Maintenance, partOf, Maintenance>
+<Painting, connectedTo, Storage>
+<Parts Replacement, connectedTo, Automated Assembly>
+<Parts Replacement, connectedTo, Maintenance>
+<Parts Replacement, partOf, Parts Replacement>
+<Procurement, connectedTo, Automated Assembly>
+<Procurement, connectedTo, Yield Optimization>
+<Production Scheduling, connectedTo, Painting>
+<Quality Control, cuts, Environmental Compliance>
+<Raw Material, repairs, Design Review>
+<Recycling Process, connectedTo, Inspection>
+<Recycling Process, partOf, Recycling Process>
+<Safety Audit, connectedTo, Inspection>
+<Safety Audit, connectedTo, Yield Optimization>
+<Shipping, connectedTo, Work_in_Progress Monitoring>
+<Storage, connectedTo, Tool Path Generation>
+<Supplier Qualification, connectedTo, Yield Optimization>
+<Tool Path Generation, connectedTo, Assembly>
+<Work_in_Progress Monitoring, connectedTo, Batch Tracking>
+<Yield Optimization, connectedTo, Automated Guided Vehicle Operation>
+<Yield Optimization, connectedTo, Raw Material>
diff --git a/test/diagrams/scanned_medium/diagrams_244.dot b/test/diagrams/scanned_medium/diagrams_244.dot
new file mode 100644
index 0000000000000000000000000000000000000000..123b2369402c4ee3a07af3d3263e01df2f6ae58e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_244.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=RL
+	N0 [label="Graduation Approval" color="#AF56A6" fillcolor="#DDCEDD" shape=rect style=filled]
+	N1 [label="Library Registration" color="#AF56A6" fillcolor="#DDCEDD" shape=inputoutput style=filled]
+	N2 [label="Student Feedback Collection" color="#E91E63" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N3 [label="Curriculum Development" color="#AF56A6" fillcolor="#DDCEDD" shape=multipledocuments style=filled]
+	N4 [label="Certificate Issuance" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+	N5 [label="Grade Entry" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N6 [label="Disciplinary Action" color="#E91E63" fillcolor="#FCE4EC" shape=box style=filled]
+	N7 [label="Attendance Tracking" color="#FFF9AE" fillcolor="#FFFCE6" shape=document style=filled]
+	N8 [label="Internship Coordination" color="#AF56A6" fillcolor="#DDCEDD" shape=action style=filled]
+	N9 [label="Student Enrollment" color="#AF56A6" fillcolor="#DDCEDD" shape=rect style=filled]
+	N10 [label="School Accreditation" color="#E91E63" fillcolor="#FCE4EC" shape=predefinedprocess style=filled]
+	N11 [label="Online Learning Platform Management" color="#FFF9AE" fillcolor="#FFFCE6" shape=ellipse style=filled]
+	N12 [label="Alumni Network Management" color="#E91E63" fillcolor="#FCE4EC" shape=document style=filled]
+	N13 [label="Club Registration" color="#AF56A6" fillcolor="#DDCEDD" shape=inputoutput style=filled]
+	N14 [label="Thesis Submission" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	S0 [label="" color="#AF56A6" fillcolor="#DDCEDD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#E91E63" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFF9AE" fillcolor="#FFFCE6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Lecture Delivery {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Lecture Delivery"
+		nest0_0 [label="Document Verification" color="#AF56A6" fillcolor="#DDCEDD" shape=diamond style=filled]
+		nest0_1 [label="Advisory Committee Meeting" color="#E91E63" fillcolor="#FCE4EC" shape=vnode_shape style=filled]
+		nest0_2 [label="Extracurricular Activity" color="#E91E63" fillcolor="#FCE4EC" shape=action style=filled]
+		nest0_3 [label="Study Abroad Program" color="#FFF9AE" fillcolor="#FFFCE6" shape=diamond style=filled]
+	}
+	subgraph cluster_Counseling Session {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Counseling Session"
+		nest1_0 [label="Scholarship Evaluation" color="#AF56A6" fillcolor="#DDCEDD" shape=parallelogram style=filled]
+		nest1_1 [label="Student Application" color="#AF56A6" fillcolor="#DDCEDD" shape=vnode_shape style=filled]
+		nest1_2 [label="Orientation" color="#E91E63" fillcolor="#FCE4EC" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#E91E63" 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=dashed label="collaborates" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#E91E63" penwidth=1.5 style=solid label="learns" dir=forward]
+	N13 -> nest0_0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest1_0 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S0 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#AF56A6" penwidth=1.5 style=dashed label="guides" dir=forward]
+	N3 -> M1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N8 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_244.txt b/test/diagrams/scanned_medium/diagrams_244.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f03eadd22b8a16d5af2639d881ad474a0cde2f59
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_244.txt
@@ -0,0 +1,31 @@
+<Advisory Committee Meeting, connectedTo, Extracurricular Activity>
+<Alumni Network Management, connectedTo, Club Registration>
+<Alumni Network Management, connectedTo, Scholarship Evaluation>
+<Attendance Tracking, connectedTo, Internship Coordination>
+<Certificate Issuance, collaborates, Grade Entry>
+<Club Registration, connectedTo, Document Verification>
+<Club Registration, connectedTo, Thesis Submission>
+<Curriculum Development, connectedTo, Certificate Issuance>
+<Curriculum Development, connectedTo, Club Registration>
+<Curriculum Development, connectedTo, Internship Coordination>
+<Curriculum Development, connectedTo, School Accreditation>
+<Curriculum Development, connectedTo, Thesis Submission>
+<Disciplinary Action, connectedTo, Alumni Network Management>
+<Disciplinary Action, connectedTo, Attendance Tracking>
+<Disciplinary Action, connectedTo, Internship Coordination>
+<Disciplinary Action, connectedTo, Online Learning Platform Management>
+<Document Verification, connectedTo, Advisory Committee Meeting>
+<Extracurricular Activity, learns, Study Abroad Program>
+<Grade Entry, connectedTo, Disciplinary Action>
+<Grade Entry, guides, Internship Coordination>
+<Graduation Approval, connectedTo, Library Registration>
+<Internship Coordination, connectedTo, Student Enrollment>
+<Library Registration, connectedTo, Student Feedback Collection>
+<Online Learning Platform Management, connectedTo, Alumni Network Management>
+<Orientation, connectedTo, Library Registration>
+<Scholarship Evaluation, connectedTo, Student Application>
+<School Accreditation, connectedTo, Online Learning Platform Management>
+<Student Application, connectedTo, Orientation>
+<Student Enrollment, connectedTo, School Accreditation>
+<Student Feedback Collection, connectedTo, Curriculum Development>
+<Study Abroad Program, connectedTo, Online Learning Platform Management>
diff --git a/test/diagrams/scanned_medium/diagrams_245.dot b/test/diagrams/scanned_medium/diagrams_245.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a65c79492a0f7825c512b8b0bebb2a75c35e4198
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_245.dot
@@ -0,0 +1,71 @@
+digraph {
+	rankdir=LR
+	N0 [label="Gift Card Purchase" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N1 [label="Checkout" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	N2 [label="Search Engine Optimization" color="#C0CA33" fillcolor="#F9FBE7" shape=action style=filled]
+	N3 [label="Add to Cart" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+	N4 [label="Package Return" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N5 [label="Cross_selling Recommendation" color="#FFA726" fillcolor="#FFF3E0" shape=action style=filled]
+	N6 [label="Delivery Rescheduling" color="#C0CA33" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N7 [label="Return Merchandise Authorization" color="#FFF176" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+	N8 [label="Payment" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N9 [label="Invoice Generation" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N10 [label="Live Chat Support" color="#FFF176" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N11 [label="Customer Review" color="#C0CA33" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	S0 [label="" color="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFA726" fillcolor="#FFF3E0" 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]
+	M1 [label="" color="#FFF176" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Subscription Service {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Subscription Service"
+		nest0_0 [label="Customer Inquiry" color="#FFA726" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+		nest0_1 [label="Price Adjustment" color="#FFF176" fillcolor="#FFFDE7" shape=action style=filled]
+		nest0_2 [label="A or B Testing" color="#C0CA33" fillcolor="#F9FBE7" shape=hexagon style=filled]
+		nest0_3 [label="Product Recommendation" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	}
+	subgraph cluster_Delivery Tracking {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Delivery Tracking"
+		nest1_0 [label="Marketing Campaign Launch" color="#FFA726" fillcolor="#FFF3E0" shape=inputoutput style=filled]
+		nest1_1 [label="Wishlist Management" color="#FFA726" fillcolor="#FFF3E0" shape=preparation style=filled]
+		nest1_2 [label="Inventory Update" color="#C0CA33" fillcolor="#F9FBE7" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="personalizes" dir=forward]
+	N9 -> N10 [color="#FFF176" penwidth=1.5 style=solid label="notifies" dir=forward]
+	N10 -> N11 [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="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_0 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N9 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N9 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N3 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N6 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_246.dot b/test/diagrams/scanned_medium/diagrams_246.dot
new file mode 100644
index 0000000000000000000000000000000000000000..344334688397ef3ef325743c1f0aa4ae611b8ba7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_246.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=TB
+	N0 [label="Bridge Inspection" color="#5C6BC0" fillcolor="#E8EAF6" shape=predefinedprocess style=filled]
+	N1 [label="Customs Clearance" color="#6EB76D" fillcolor="#E9F7E8" shape=database style=filled]
+	N2 [label="Fare Calculation" color="#6EB76D" fillcolor="#E9F7E8" shape=vnode_shape style=filled]
+	N3 [label="Electric Vehicle Charging" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N4 [label="Emergency Landing" color="#5C6BC0" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	N5 [label="Luggage Handling" color="#5C6BC0" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	N6 [label="Train Dispatch" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+	N7 [label="Passenger Boarding Pass Issuance" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	N8 [label="Bus Stop Management" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+	N9 [label="Passenger Feedback" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N10 [label="Delay Alert" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N11 [label="Traffic Monitoring" color="#5C6BC0" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	N12 [label="Cargo Loading" color="#6EB76D" fillcolor="#E9F7E8" shape=inputoutput style=filled]
+	S0 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Parking Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Parking Management"
+		nest0_0 [label="Boarding" color="#6EB76D" fillcolor="#E9F7E8" shape=inputoutput style=filled]
+		nest0_1 [label="Ticket Purchase" color="#6EB76D" fillcolor="#E9F7E8" shape=vnode_shape style=filled]
+		nest0_2 [label="Route Diversion" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+		nest0_3 [label="Intermodal Transfer" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	}
+	subgraph cluster_Incident Report {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Incident Report"
+		nest1_0 [label="Vehicle Tracking" color="#6EB76D" fillcolor="#E9F7E8" shape=preparation style=filled]
+		nest1_1 [label="Arrival" color="#CB9BE1" fillcolor="#F2E6F5" shape=parallelogram style=filled]
+		nest1_2 [label="Security Check" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+		nest1_3 [label="Fleet Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#CB9BE1" penwidth=1.5 style=dashed 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=dashed dir=forward]
+	N4 -> N5 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [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="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N9 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#CB9BE1" penwidth=1.5 style=dashed label="maintains" dir=forward]
+	S0 -> N12 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N1 -> S2 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S2 -> N6 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" 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_medium/diagrams_246.txt b/test/diagrams/scanned_medium/diagrams_246.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a4c1165e7c94e0f6d993ea21a6c73e3ce2bcbecf
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_246.txt
@@ -0,0 +1,30 @@
+<Arrival, connectedTo, Security Check>
+<Boarding, connectedTo, Ticket Purchase>
+<Bridge Inspection, connectedTo, Customs Clearance>
+<Bus Stop Management, connectedTo, Passenger Feedback>
+<Customs Clearance, connectedTo, Delay Alert>
+<Customs Clearance, connectedTo, Fare Calculation>
+<Customs Clearance, connectedTo, Train Dispatch>
+<Delay Alert, connectedTo, Traffic Monitoring>
+<Delay Alert, connectedTo, Vehicle Tracking>
+<Electric Vehicle Charging, connectedTo, Emergency Landing>
+<Emergency Landing, connectedTo, Luggage Handling>
+<Fare Calculation, connectedTo, Electric Vehicle Charging>
+<Fare Calculation, connectedTo, Luggage Handling>
+<Fare Calculation, connectedTo, Passenger Boarding Pass Issuance>
+<Fare Calculation, connectedTo, Train Dispatch>
+<Fleet Management, connectedTo, Passenger Feedback>
+<Intermodal Transfer, connectedTo, Passenger Boarding Pass Issuance>
+<Luggage Handling, connectedTo, Bus Stop Management>
+<Luggage Handling, connectedTo, Cargo Loading>
+<Luggage Handling, connectedTo, Train Dispatch>
+<Luggage Handling, maintains, Passenger Feedback>
+<Passenger Boarding Pass Issuance, connectedTo, Bus Stop Management>
+<Passenger Feedback, connectedTo, Boarding>
+<Passenger Feedback, connectedTo, Delay Alert>
+<Route Diversion, connectedTo, Intermodal Transfer>
+<Security Check, connectedTo, Fleet Management>
+<Ticket Purchase, connectedTo, Route Diversion>
+<Traffic Monitoring, connectedTo, Cargo Loading>
+<Train Dispatch, connectedTo, Passenger Boarding Pass Issuance>
+<Vehicle Tracking, connectedTo, Arrival>
diff --git a/test/diagrams/scanned_medium/diagrams_247.dot b/test/diagrams/scanned_medium/diagrams_247.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b2539a9c9624675d79c1bc4a851c908d1125c0ef
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_247.dot
@@ -0,0 +1,81 @@
+digraph {
+	rankdir=TB
+	N0 [label="Substation Automation" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+	N1 [label="Fuel Delivery" color="#388E3C" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N2 [label="Grid Balancing" color="#388E3C" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N3 [label="Power Plant" color="#4DD0E1" fillcolor="#C9F0F0" shape=predefinedprocess style=filled]
+	N4 [label="Circuit Breaker Operation" color="#388E3C" fillcolor="#C8E6C9" shape=multipledocuments style=filled]
+	N5 [label="Load Shedding" color="#4DD0E1" fillcolor="#C9F0F0" shape=preparation style=filled]
+	N6 [label="Energy Efficiency Audit" color="#AED581" fillcolor="#F0F4C3" shape=diamond style=filled]
+	N7 [label="Hydropower Generation" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N8 [label="Nuclear Reactor Control" color="#4DD0E1" fillcolor="#C9F0F0" shape=document style=filled]
+	N9 [label="Carbon Capture" color="#4DD0E1" fillcolor="#C9F0F0" shape=box style=filled]
+	N10 [label="Alert Dispatch" color="#AED581" fillcolor="#F0F4C3" shape=inputoutput style=filled]
+	N11 [label="Transmission Line Maintenance" color="#4DD0E1" fillcolor="#C9F0F0" shape=predefinedprocess style=filled]
+	N12 [label="Pipeline Monitoring" color="#AED581" fillcolor="#F0F4C3" shape=inputoutput style=filled]
+	N13 [label="Energy Trading" color="#388E3C" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+	N14 [label="Sensor Reading" color="#AED581" fillcolor="#F0F4C3" shape=vnode_shape style=filled]
+	N15 [label="Demand Forecast" color="#AED581" fillcolor="#F0F4C3" shape=rectangle style=filled]
+	N16 [label="Power Backup" color="#4DD0E1" fillcolor="#C9F0F0" shape=inputoutput style=filled]
+	N17 [label="Wind Turbine Monitoring" color="#388E3C" fillcolor="#C8E6C9" shape=box style=filled]
+	N18 [label="Generator Check" color="#AED581" fillcolor="#F0F4C3" shape=hexagon style=filled]
+	S0 [label="" color="#AED581" fillcolor="#F0F4C3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#388E3C" fillcolor="#C8E6C9" 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="#AED581" fillcolor="#F0F4C3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Regulatory Compliance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Regulatory Compliance"
+		nest0_0 [label="Energy Storage" color="#388E3C" fillcolor="#C8E6C9" shape=predefinedprocess style=filled]
+		nest0_1 [label="Outage Detection" color="#388E3C" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Energy Market Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Energy Market Analysis"
+		nest1_0 [label="Consumption Logging" color="#388E3C" fillcolor="#C8E6C9" shape=hexagon style=filled]
+		nest1_1 [label="Transformer Station" color="#AED581" fillcolor="#F0F4C3" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#388E3C" penwidth=1.5 style=solid label="develops" dir=forward]
+	N1 -> N2 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#AED581" penwidth=1.5 style=solid label="upgrades" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N17 -> N18 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N10 -> nest1_0 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N2 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S0 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#4DD0E1" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N11 -> S1 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S2 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N18 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S2 -> N16 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#388E3C" penwidth=1.5 style=solid label="conserves" dir=forward]
+	M0 -> N4 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N10 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_247.txt b/test/diagrams/scanned_medium/diagrams_247.txt
new file mode 100644
index 0000000000000000000000000000000000000000..62d976d6f2a93b4a37836bd5a66f6d5766516369
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_247.txt
@@ -0,0 +1,35 @@
+<Alert Dispatch, connectedTo, Consumption Logging>
+<Alert Dispatch, connectedTo, Transmission Line Maintenance>
+<Carbon Capture, connectedTo, Alert Dispatch>
+<Circuit Breaker Operation, connectedTo, Load Shedding>
+<Consumption Logging, connectedTo, Transformer Station>
+<Demand Forecast, connectedTo, Power Backup>
+<Energy Efficiency Audit, connectedTo, Carbon Capture>
+<Energy Efficiency Audit, connectedTo, Energy Storage>
+<Energy Efficiency Audit, optimizes, Energy Trading>
+<Energy Efficiency Audit, upgrades, Hydropower Generation>
+<Energy Storage, connectedTo, Outage Detection>
+<Energy Trading, connectedTo, Sensor Reading>
+<Fuel Delivery, connectedTo, Grid Balancing>
+<Fuel Delivery, conserves, Circuit Breaker Operation>
+<Grid Balancing, connectedTo, Circuit Breaker Operation>
+<Grid Balancing, connectedTo, Power Plant>
+<Hydropower Generation, connectedTo, Alert Dispatch>
+<Hydropower Generation, connectedTo, Nuclear Reactor Control>
+<Load Shedding, connectedTo, Alert Dispatch>
+<Load Shedding, connectedTo, Energy Efficiency Audit>
+<Nuclear Reactor Control, connectedTo, Carbon Capture>
+<Nuclear Reactor Control, connectedTo, Generator Check>
+<Nuclear Reactor Control, connectedTo, Power Backup>
+<Outage Detection, connectedTo, Fuel Delivery>
+<Pipeline Monitoring, connectedTo, Energy Trading>
+<Power Backup, connectedTo, Wind Turbine Monitoring>
+<Power Plant, connectedTo, Circuit Breaker Operation>
+<Sensor Reading, connectedTo, Demand Forecast>
+<Substation Automation, connectedTo, Circuit Breaker Operation>
+<Substation Automation, develops, Fuel Delivery>
+<Transformer Station, connectedTo, Grid Balancing>
+<Transmission Line Maintenance, connectedTo, Demand Forecast>
+<Transmission Line Maintenance, connectedTo, Pipeline Monitoring>
+<Transmission Line Maintenance, connectedTo, Sensor Reading>
+<Wind Turbine Monitoring, connectedTo, Generator Check>
diff --git a/test/diagrams/scanned_medium/diagrams_248.dot b/test/diagrams/scanned_medium/diagrams_248.dot
new file mode 100644
index 0000000000000000000000000000000000000000..964108d0605749c89b412e6006fbf562604d3148
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_248.dot
@@ -0,0 +1,71 @@
+digraph {
+	rankdir=LR
+	N0 [label="Divorce Proceedings" color="#673AB7" fillcolor="#D1C4E9" shape=database style=filled]
+	N1 [label="Estate Planning" color="#A1887F" fillcolor="#EFEBE9" shape=preparation style=filled]
+	N2 [label="Contract Review" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	N3 [label="Case Filing" color="#A1887F" fillcolor="#EFEBE9" shape=parallelogram style=filled]
+	N4 [label="Patent Application" color="#673AB7" fillcolor="#D1C4E9" shape=rect style=filled]
+	N5 [label="Pre_Trial Hearing" color="#673AB7" fillcolor="#D1C4E9" shape=action style=filled]
+	N6 [label="Pro Bono Work" color="#A1887F" fillcolor="#EFEBE9" shape=database style=filled]
+	N7 [label="Trademark Registration" color="#A1887F" fillcolor="#EFEBE9" shape=database style=filled]
+	N8 [label="Settlement Negotiation" color="#A1887F" fillcolor="#EFEBE9" shape=database style=filled]
+	N9 [label="Due Diligence" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+	N10 [label="Closing Argument" color="#DCE775" fillcolor="#FCFCE7" shape=preparation style=filled]
+	N11 [label="Arbitration Session" color="#673AB7" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	S0 [label="" color="#A1887F" fillcolor="#EFEBE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#DCE775" fillcolor="#FCFCE7" 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]
+	M1 [label="" color="#DCE775" fillcolor="#FCFCE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#673AB7" fillcolor="#D1C4E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Witness Testimony {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Witness Testimony"
+		nest0_0 [label="Intel Property Licensing" color="#673AB7" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+		nest0_1 [label="Copyright Infringement" color="#DCE775" fillcolor="#FCFCE7" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Notarization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Notarization"
+		nest1_0 [label="Appeal Submission" color="#673AB7" fillcolor="#D1C4E9" shape=rect style=filled]
+		nest1_1 [label="Amicus Brief Submission" color="#DCE775" fillcolor="#FCFCE7" shape=rectangle style=filled]
+		nest1_2 [label="Bankruptcy Filing" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#A1887F" penwidth=1.5 style=solid label="settles" dir=forward]
+	N8 -> N9 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest0_0 [color="#DCE775" penwidth=1.5 style=solid label="collects" dir=forward]
+	nest0_1 -> N7 [color="#A1887F" penwidth=1.5 style=dashed label="reviews" 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]
+	N9 -> nest1_0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> S1 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	M0 -> N11 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M2 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M2 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	M2 -> N10 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_248.txt b/test/diagrams/scanned_medium/diagrams_248.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3a1956081d752705d869bd319739f887f1c86a06
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_248.txt
@@ -0,0 +1,32 @@
+<Amicus Brief Submission, connectedTo, Bankruptcy Filing>
+<Amicus Brief Submission, partOf, Amicus Brief Submission>
+<Appeal Submission, connectedTo, Amicus Brief Submission>
+<Appeal Submission, partOf, Appeal Submission>
+<Bankruptcy Filing, connectedTo, Estate Planning>
+<Bankruptcy Filing, partOf, Bankruptcy Filing>
+<Case Filing, connectedTo, Patent Application>
+<Closing Argument, connectedTo, Arbitration Session>
+<Contract Review, connectedTo, Case Filing>
+<Contract Review, connectedTo, Trademark Registration>
+<Copyright Infringement, reviews, Trademark Registration>
+<Divorce Proceedings, connectedTo, Arbitration Session>
+<Divorce Proceedings, connectedTo, Estate Planning>
+<Due Diligence, connectedTo, Appeal Submission>
+<Due Diligence, connectedTo, Closing Argument>
+<Estate Planning, connectedTo, Arbitration Session>
+<Estate Planning, connectedTo, Closing Argument>
+<Estate Planning, connectedTo, Contract Review>
+<Estate Planning, connectedTo, Trademark Registration>
+<Intel Property Licensing, connectedTo, Copyright Infringement>
+<Patent Application, connectedTo, Pre_Trial Hearing>
+<Patent Application, connectedTo, Trademark Registration>
+<Pre_Trial Hearing, connectedTo, Closing Argument>
+<Pre_Trial Hearing, connectedTo, Pro Bono Work>
+<Pre_Trial Hearing, connectedTo, Trademark Registration>
+<Pro Bono Work, connectedTo, Trademark Registration>
+<Settlement Negotiation, collects, Intel Property Licensing>
+<Settlement Negotiation, connectedTo, Arbitration Session>
+<Settlement Negotiation, connectedTo, Closing Argument>
+<Settlement Negotiation, connectedTo, Due Diligence>
+<Trademark Registration, connectedTo, Closing Argument>
+<Trademark Registration, settles, Settlement Negotiation>
diff --git a/test/diagrams/scanned_medium/diagrams_249.txt b/test/diagrams/scanned_medium/diagrams_249.txt
new file mode 100644
index 0000000000000000000000000000000000000000..824de94d4ab60835f9cbf3fc81f0391d24f6bf73
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_249.txt
@@ -0,0 +1,25 @@
+<Air Cargo Handling, connectedTo, Container Loading>
+<Barcode Scanning, connectedTo, Consolidation>
+<Consolidation, connectedTo, Route Optimization Software>
+<Container Loading, connectedTo, Warehouse Entry>
+<Container Loading, sorts, Demand Forecasting Integration>
+<Demand Forecasting Integration, connectedTo, Return Logistics>
+<Demand Forecasting Integration, connectedTo, Warehouse Entry>
+<Demand Forecasting Integration, connectedTo, Yard Management>
+<Demand Forecasting Integration, syncs, Order Picking>
+<Driver Check_in, connectedTo, Warehouse Entry>
+<Fleet Maintenance Scheduling, connectedTo, Container Loading>
+<Fleet Maintenance Scheduling, connectedTo, Order Picking>
+<Fleet Maintenance Scheduling, connectedTo, Pallet Stacking>
+<Fleet Maintenance Scheduling, connectedTo, Return Logistics>
+<Fleet Maintenance Scheduling, connectedTo, Yard Management>
+<Hazardous Material Transport, connectedTo, Fleet Maintenance Scheduling>
+<Ocean Freight Management, packs, Package Labeling>
+<Package Labeling, routes, Air Cargo Handling>
+<Pallet Stacking, connectedTo, Ocean Freight Management>
+<Rail Transport Coordination, connectedTo, Barcode Scanning>
+<Return Logistics, connectedTo, Driver Check_in>
+<Return Logistics, connectedTo, Rail Transport Coordination>
+<Route Optimization Software, connectedTo, Yard Management>
+<Warehouse Entry, connectedTo, Order Picking>
+<Yard Management, connectedTo, Return Logistics>
diff --git a/test/diagrams/scanned_medium/diagrams_25.dot b/test/diagrams/scanned_medium/diagrams_25.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f11e28b686ea07fedd9fecc510aed352096c8b25
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_25.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=TB
+	N0 [label="Clinical Trial Design" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N1 [label="Intellectual Property Protection" color="#FBC02D" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+	N2 [label="Protein Engineering" color="#4FC3F7" fillcolor="#E1F5FE" shape=action style=filled]
+	N3 [label="Biosafety Protocol" color="#7E57C2" fillcolor="#D1C4E9" shape=ellipse style=filled]
+	N4 [label="Bioprocess Optimization" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N5 [label="Biomarker Discovery" color="#4FC3F7" fillcolor="#E1F5FE" shape=document style=filled]
+	N6 [label="Personalized Medicine Formulation" color="#FBC02D" fillcolor="#FFFDE7" shape=action style=filled]
+	N7 [label="Gene Therapy Delivery" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N8 [label="Clinical Data Interpretation" color="#7E57C2" fillcolor="#D1C4E9" shape=rect style=filled]
+	N9 [label="Bioreactor Operation" color="#7E57C2" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#4FC3F7" penwidth=1.5 style=dashed label="licenses" dir=forward]
+	N4 -> N5 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="applies" dir=forward]
+	N6 -> N7 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#7E57C2" penwidth=1.5 style=solid label="isolates" dir=forward]
+	N2 -> N4 [color="#FBC02D" penwidth=1.5 style=dashed label="designs" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_25.txt b/test/diagrams/scanned_medium/diagrams_25.txt
new file mode 100644
index 0000000000000000000000000000000000000000..45b6dc25cce7e1bbf60138080ec9a7fa46dd8eeb
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_25.txt
@@ -0,0 +1,10 @@
+<Biomarker Discovery, applies, Personalized Medicine Formulation>
+<Bioprocess Optimization, connectedTo, Biomarker Discovery>
+<Biosafety Protocol, licenses, Bioprocess Optimization>
+<Clinical Data Interpretation, isolates, Bioreactor Operation>
+<Clinical Trial Design, connectedTo, Intellectual Property Protection>
+<Gene Therapy Delivery, connectedTo, Clinical Data Interpretation>
+<Intellectual Property Protection, connectedTo, Protein Engineering>
+<Personalized Medicine Formulation, connectedTo, Gene Therapy Delivery>
+<Protein Engineering, connectedTo, Biosafety Protocol>
+<Protein Engineering, designs, Bioprocess Optimization>
diff --git a/test/diagrams/scanned_medium/diagrams_250.dot b/test/diagrams/scanned_medium/diagrams_250.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8d8c6746f68e2ccc234163d713ef1521c83af87b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_250.dot
@@ -0,0 +1,67 @@
+digraph {
+	rankdir=RL
+	N0 [label="Plan Selection" color="#FBC02D" fillcolor="#FFFDE7" shape=rect style=filled]
+	N1 [label="MMS Transmission" color="#FFA726" fillcolor="#FFF3E0" shape=action style=filled]
+	N2 [label="Network Upgrade" color="#FBC02D" fillcolor="#FFFDE7" shape=action style=filled]
+	N3 [label="SIM Registration" color="#61CAC3" fillcolor="#C2E8E6" shape=rectangle style=filled]
+	N4 [label="Outage Detection" color="#FBC02D" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	N5 [label="Customer Support" color="#61CAC3" fillcolor="#C2E8E6" shape=preparation style=filled]
+	N6 [label="Network Security Monitoring" color="#FFA726" fillcolor="#FFF3E0" shape=predefinedprocess style=filled]
+	N7 [label="Fiber Optic Deployment" color="#FBC02D" fillcolor="#FFFDE7" shape=database style=filled]
+	N8 [label="Call Recording" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N9 [label="Antenna Maintenance" color="#61CAC3" fillcolor="#C2E8E6" 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="#FFA726" fillcolor="#FFF3E0" 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="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#61CAC3" fillcolor="#C2E8E6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_VoIP Service {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="VoIP Service"
+		nest0_0 [label="Video Conferencing" color="#FBC02D" fillcolor="#FFFDE7" shape=hexagon style=filled]
+		nest0_1 [label="Base Station Installation" color="#FFA726" fillcolor="#FFF3E0" shape=document style=filled]
+		nest0_2 [label="Number Porting" color="#FFA726" fillcolor="#FFF3E0" shape=database style=filled]
+	}
+	subgraph cluster_Bill Generation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Bill Generation"
+		nest1_0 [label="Bandwidth Allocation" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+		nest1_1 [label="SMS Delivery" color="#61CAC3" fillcolor="#C2E8E6" shape=document style=filled]
+	}
+	N0 -> N1 [color="#FFA726" penwidth=1.5 style=solid 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="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest1_0 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N8 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N6 -> S0 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N8 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N4 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_250.txt b/test/diagrams/scanned_medium/diagrams_250.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7734a02aefaeee93d5d7878c9949066c4150bd27
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_250.txt
@@ -0,0 +1,28 @@
+<Bandwidth Allocation, connectedTo, SMS Delivery>
+<Base Station Installation, connectedTo, Number Porting>
+<Call Recording, connectedTo, Antenna Maintenance>
+<Customer Support, connectedTo, Network Security Monitoring>
+<Fiber Optic Deployment, connectedTo, Call Recording>
+<MMS Transmission, connectedTo, Network Security Monitoring>
+<MMS Transmission, connectedTo, Network Upgrade>
+<MMS Transmission, connectedTo, Outage Detection>
+<MMS Transmission, connectedTo, Video Conferencing>
+<Network Security Monitoring, connectedTo, Antenna Maintenance>
+<Network Security Monitoring, connectedTo, Call Recording>
+<Network Security Monitoring, connectedTo, Fiber Optic Deployment>
+<Network Upgrade, connectedTo, Call Recording>
+<Network Upgrade, connectedTo, SIM Registration>
+<Number Porting, connectedTo, Outage Detection>
+<Outage Detection, connectedTo, Bandwidth Allocation>
+<Outage Detection, connectedTo, Customer Support>
+<Outage Detection, connectedTo, Network Security Monitoring>
+<Plan Selection, connectedTo, Call Recording>
+<Plan Selection, connectedTo, MMS Transmission>
+<Plan Selection, connectedTo, Outage Detection>
+<SIM Registration, connectedTo, Antenna Maintenance>
+<SIM Registration, connectedTo, Call Recording>
+<SIM Registration, connectedTo, Fiber Optic Deployment>
+<SIM Registration, connectedTo, Network Security Monitoring>
+<SIM Registration, connectedTo, Outage Detection>
+<SMS Delivery, connectedTo, Call Recording>
+<Video Conferencing, connectedTo, Base Station Installation>
diff --git a/test/diagrams/scanned_medium/diagrams_251.dot b/test/diagrams/scanned_medium/diagrams_251.dot
new file mode 100644
index 0000000000000000000000000000000000000000..26514d76a0025c7078e763356f82a3f457ce160f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_251.dot
@@ -0,0 +1,57 @@
+digraph {
+	rankdir=RL
+	N0 [label="Market Transportation" color="#E91E63" fillcolor="#F8BBD0" shape=multipledocuments style=filled]
+	N1 [label="Livestock Feeding" color="#A188DB" fillcolor="#DED7F0" shape=parallelogram style=filled]
+	N2 [label="Supply Chain to Retailers" color="#F7BEE0" fillcolor="#FAEBF3" shape=action style=filled]
+	N3 [label="Produce Sorting" color="#F7BEE0" fillcolor="#FAEBF3" shape=preparation style=filled]
+	N4 [label="Grain Drying" color="#E91E63" fillcolor="#F8BBD0" shape=hexagon style=filled]
+	N5 [label="Barn Cleaning" color="#F7BEE0" fillcolor="#FAEBF3" shape=vnode_shape style=filled]
+	N6 [label="Water Level Measurement" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+	S0 [label="" color="#F7BEE0" fillcolor="#FAEBF3" 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]
+	M1 [label="" color="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Packaging for Sale {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Packaging for Sale"
+		nest0_0 [label="Weed Removal" color="#A188DB" fillcolor="#DED7F0" shape=hexagon style=filled]
+		nest0_1 [label="Crop Monitoring" color="#A188DB" fillcolor="#DED7F0" shape=action style=filled]
+		nest0_2 [label="Organic Certification" color="#F7BEE0" fillcolor="#FAEBF3" shape=vnode_shape style=filled]
+		nest0_3 [label="Traceability System" color="#F7BEE0" fillcolor="#FAEBF3" shape=document style=filled]
+	}
+	subgraph cluster_Subsidy Application {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Subsidy Application"
+		nest1_0 [label="Animal Health Monitoring" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+		nest1_1 [label="Seedling Transplanting" color="#A188DB" fillcolor="#DED7F0" shape=document style=filled]
+		nest1_2 [label="Hydroponic System Management" color="#F7BEE0" fillcolor="#FAEBF3" shape=diamond style=filled]
+		nest1_3 [label="Equipment Repair" color="#E91E63" fillcolor="#F8BBD0" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#A188DB" penwidth=1.5 style=dashed label="removes" dir=forward]
+	N4 -> N5 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#E91E63" penwidth=1.5 style=dashed label="manages" dir=forward]
+	nest0_1 -> nest0_2 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#E91E63" 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="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest1_0 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N3 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#000000" penwidth=1.5 style=dashed label="plants" dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=dashed label="harvests" dir=forward]
+	N0 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N2 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N6 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_251.txt b/test/diagrams/scanned_medium/diagrams_251.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6f7384ac6be1f939c85911416f562fc3265703a9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_251.txt
@@ -0,0 +1,23 @@
+<Animal Health Monitoring, connectedTo, Seedling Transplanting>
+<Barn Cleaning, connectedTo, Water Level Measurement>
+<Barn Cleaning, connectedTo, Weed Removal>
+<Crop Monitoring, connectedTo, Organic Certification>
+<Equipment Repair, connectedTo, Produce Sorting>
+<Grain Drying, connectedTo, Barn Cleaning>
+<Hydroponic System Management, connectedTo, Equipment Repair>
+<Livestock Feeding, connectedTo, Produce Sorting>
+<Livestock Feeding, connectedTo, Supply Chain to Retailers>
+<Livestock Feeding, harvests, Barn Cleaning>
+<Livestock Feeding, plants, Produce Sorting>
+<Market Transportation, connectedTo, Grain Drying>
+<Market Transportation, connectedTo, Livestock Feeding>
+<Market Transportation, connectedTo, Produce Sorting>
+<Market Transportation, connectedTo, Supply Chain to Retailers>
+<Market Transportation, connectedTo, Water Level Measurement>
+<Organic Certification, connectedTo, Traceability System>
+<Produce Sorting, removes, Grain Drying>
+<Seedling Transplanting, connectedTo, Hydroponic System Management>
+<Supply Chain to Retailers, connectedTo, Animal Health Monitoring>
+<Supply Chain to Retailers, connectedTo, Produce Sorting>
+<Traceability System, connectedTo, Supply Chain to Retailers>
+<Weed Removal, manages, Crop Monitoring>
diff --git a/test/diagrams/scanned_medium/diagrams_252.dot b/test/diagrams/scanned_medium/diagrams_252.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c43589c41df25c7c48ae713a95b87eaba899f95f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_252.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=BT
+	N0 [label="Restaurant Reservation" color="#66BB6A" fillcolor="#E8F5E9" shape=multipledocuments style=filled]
+	N1 [label="Booking Modification" color="#8C9EFF" fillcolor="#D3D7EB" shape=box style=filled]
+	N2 [label="Travel Advisory Updates" color="#66BB6A" fillcolor="#E8F5E9" shape=multipledocuments style=filled]
+	N3 [label="Visa Application" color="#AF56A6" fillcolor="#DDCEDD" shape=database style=filled]
+	N4 [label="Rental Car Pickup" color="#8C9EFF" fillcolor="#D3D7EB" shape=inputoutput style=filled]
+	N5 [label="Lost and Found Service" color="#8C9EFF" fillcolor="#D3D7EB" shape=rectangle style=filled]
+	N6 [label="Feedback Collection" color="#AF56A6" fillcolor="#DDCEDD" shape=vnode_shape style=filled]
+	N7 [label="Cultural Immersion Program" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N8 [label="Group Tour Coordination" color="#8C9EFF" fillcolor="#D3D7EB" shape=box style=filled]
+	N9 [label="Tourist Information Desk" color="#AF56A6" fillcolor="#DDCEDD" shape=database style=filled]
+	N10 [label="Travel Insurance" color="#66BB6A" fillcolor="#E8F5E9" shape=document style=filled]
+	N11 [label="Baggage Handling" color="#AF56A6" fillcolor="#DDCEDD" shape=document style=filled]
+	N12 [label="Destination Selection" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+	N13 [label="Photo Capture" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+	N14 [label="Airport Transfer" color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+	N15 [label="Tour Guide Assignment" color="#66BB6A" fillcolor="#E8F5E9" shape=database style=filled]
+	S0 [label="" color="#AF56A6" fillcolor="#DDCEDD" 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="#AF56A6" fillcolor="#DDCEDD" 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_Event Reservation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Event Reservation"
+		nest0_0 [label="Passport Renewal Assistance" color="#8C9EFF" fillcolor="#D3D7EB" shape=rectangle style=filled]
+		nest0_1 [label="Travel Blog Creation" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+		nest0_2 [label="Cruise Ship Boarding" color="#8C9EFF" fillcolor="#D3D7EB" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Local Transport {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Local Transport"
+		nest1_0 [label="Return Trip" color="#8C9EFF" fillcolor="#D3D7EB" shape=predefinedprocess style=filled]
+		nest1_1 [label="Concert Ticketing" color="#AF56A6" fillcolor="#DDCEDD" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="reviews" dir=forward]
+	N3 -> N4 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed label="exchanges" dir=forward]
+	N11 -> N12 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed label="promotes" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid label="books" dir=forward]
+	N14 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N3 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest1_0 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N15 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N12 -> S1 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#8C9EFF" penwidth=1.5 style=solid label="captures" dir=forward]
+	N1 -> M0 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N6 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N11 -> M1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M1 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	M1 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_252.txt b/test/diagrams/scanned_medium/diagrams_252.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ee7c7faa60f00b60778cc6eef386628dcd50af3e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_252.txt
@@ -0,0 +1,30 @@
+<Airport Transfer, connectedTo, Passport Renewal Assistance>
+<Airport Transfer, connectedTo, Tour Guide Assignment>
+<Baggage Handling, connectedTo, Airport Transfer>
+<Baggage Handling, connectedTo, Destination Selection>
+<Booking Modification, connectedTo, Feedback Collection>
+<Booking Modification, connectedTo, Travel Advisory Updates>
+<Concert Ticketing, connectedTo, Travel Advisory Updates>
+<Cruise Ship Boarding, connectedTo, Visa Application>
+<Cultural Immersion Program, connectedTo, Group Tour Coordination>
+<Destination Selection, captures, Tour Guide Assignment>
+<Destination Selection, connectedTo, Airport Transfer>
+<Destination Selection, connectedTo, Photo Capture>
+<Feedback Collection, connectedTo, Cultural Immersion Program>
+<Group Tour Coordination, connectedTo, Tourist Information Desk>
+<Lost and Found Service, connectedTo, Feedback Collection>
+<Lost and Found Service, connectedTo, Return Trip>
+<Passport Renewal Assistance, promotes, Travel Blog Creation>
+<Photo Capture, connectedTo, Airport Transfer>
+<Rental Car Pickup, connectedTo, Group Tour Coordination>
+<Rental Car Pickup, connectedTo, Lost and Found Service>
+<Rental Car Pickup, connectedTo, Tour Guide Assignment>
+<Restaurant Reservation, connectedTo, Booking Modification>
+<Return Trip, connectedTo, Concert Ticketing>
+<Tourist Information Desk, connectedTo, Airport Transfer>
+<Tourist Information Desk, connectedTo, Travel Insurance>
+<Travel Advisory Updates, connectedTo, Feedback Collection>
+<Travel Advisory Updates, reviews, Visa Application>
+<Travel Blog Creation, books, Cruise Ship Boarding>
+<Travel Insurance, exchanges, Baggage Handling>
+<Visa Application, connectedTo, Rental Car Pickup>
diff --git a/test/diagrams/scanned_medium/diagrams_253.dot b/test/diagrams/scanned_medium/diagrams_253.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2fce276afd2c4aae6555beccef622ca9f4d6974a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_253.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=LR
+	N0 [label="Loan Pre_Approval" color="#607D8B" fillcolor="#CFD8DC" shape=preparation style=filled]
+	N1 [label="Tax Assessment" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+	N2 [label="Virtual Tour Creation" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	N3 [label="Zoning Compliance" color="#607D8B" fillcolor="#CFD8DC" shape=database style=filled]
+	N4 [label="Ownership Transfer" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+	N5 [label="Closing Meeting" color="#CB9BE1" fillcolor="#F2E6F5" shape=parallelogram style=filled]
+	N6 [label="Commission Distribution" color="#CB9BE1" fillcolor="#F2E6F5" shape=hexagon style=filled]
+	N7 [label="Site Visit Scheduling" color="#607D8B" fillcolor="#CFD8DC" shape=inputoutput style=filled]
+	N8 [label="Brokerage License Renewal" color="#BCB88A" fillcolor="#F5F5DC" shape=database style=filled]
+	N9 [label="Escrow Setup" color="#CB9BE1" fillcolor="#F2E6F5" shape=predefinedprocess style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" 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="#607D8B" fillcolor="#CFD8DC" 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="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Property Tax Payment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Property Tax Payment"
+		nest0_0 [label="Contract Review" color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+		nest0_1 [label="Commercial Lease Negotiation" color="#607D8B" fillcolor="#CFD8DC" shape=action style=filled]
+		nest0_2 [label="Property Marketing" color="#607D8B" fillcolor="#CFD8DC" shape=predefinedprocess style=filled]
+		nest0_3 [label="Investment Property Analysis" color="#BCB88A" fillcolor="#F5F5DC" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Document Signing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Document Signing"
+		nest1_0 [label="Property Insurance" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+		nest1_1 [label="Land Acquisition" color="#BCB88A" fillcolor="#F5F5DC" shape=inputoutput style=filled]
+		nest1_2 [label="Mortgage Application Assistance" color="#BCB88A" fillcolor="#F5F5DC" shape=predefinedprocess style=filled]
+		nest1_3 [label="Legal Verification" color="#BCB88A" fillcolor="#F5F5DC" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="schedules" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#BCB88A" 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]
+	N6 -> N7 [color="#BCB88A" 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]
+	nest0_0 -> nest0_1 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest0_0 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N8 [color="#CB9BE1" 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="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest1_0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N5 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	S0 -> N2 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> S1 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#BCB88A" penwidth=1.5 style=dashed label="evaluates" dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=solid label="buys" dir=forward]
+	N1 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#607D8B" penwidth=1.5 style=solid label="inspects" dir=forward]
+	N4 -> M1 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N4 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N6 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_253.txt b/test/diagrams/scanned_medium/diagrams_253.txt
new file mode 100644
index 0000000000000000000000000000000000000000..35809d2c8bf20d054ce9593326cbb52a92c59f45
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_253.txt
@@ -0,0 +1,36 @@
+<Brokerage License Renewal, connectedTo, Escrow Setup>
+<Closing Meeting, connectedTo, Commission Distribution>
+<Closing Meeting, connectedTo, Site Visit Scheduling>
+<Commercial Lease Negotiation, connectedTo, Property Marketing>
+<Commission Distribution, connectedTo, Site Visit Scheduling>
+<Contract Review, connectedTo, Commercial Lease Negotiation>
+<Investment Property Analysis, connectedTo, Brokerage License Renewal>
+<Land Acquisition, connectedTo, Mortgage Application Assistance>
+<Legal Verification, connectedTo, Closing Meeting>
+<Loan Pre_Approval, buys, Site Visit Scheduling>
+<Loan Pre_Approval, connectedTo, Brokerage License Renewal>
+<Loan Pre_Approval, connectedTo, Commission Distribution>
+<Loan Pre_Approval, connectedTo, Site Visit Scheduling>
+<Loan Pre_Approval, connectedTo, Virtual Tour Creation>
+<Loan Pre_Approval, connectedTo, Zoning Compliance>
+<Loan Pre_Approval, evaluates, Escrow Setup>
+<Loan Pre_Approval, inspects, Commission Distribution>
+<Loan Pre_Approval, schedules, Tax Assessment>
+<Mortgage Application Assistance, connectedTo, Legal Verification>
+<Ownership Transfer, connectedTo, Closing Meeting>
+<Ownership Transfer, connectedTo, Commission Distribution>
+<Property Insurance, connectedTo, Land Acquisition>
+<Property Marketing, connectedTo, Investment Property Analysis>
+<Site Visit Scheduling, connectedTo, Brokerage License Renewal>
+<Tax Assessment, connectedTo, Brokerage License Renewal>
+<Tax Assessment, connectedTo, Closing Meeting>
+<Tax Assessment, connectedTo, Commission Distribution>
+<Tax Assessment, connectedTo, Contract Review>
+<Tax Assessment, connectedTo, Site Visit Scheduling>
+<Tax Assessment, connectedTo, Virtual Tour Creation>
+<Tax Assessment, connectedTo, Zoning Compliance>
+<Virtual Tour Creation, connectedTo, Zoning Compliance>
+<Zoning Compliance, connectedTo, Commission Distribution>
+<Zoning Compliance, connectedTo, Ownership Transfer>
+<Zoning Compliance, connectedTo, Property Insurance>
+<Zoning Compliance, connectedTo, Site Visit Scheduling>
diff --git a/test/diagrams/scanned_medium/diagrams_254.dot b/test/diagrams/scanned_medium/diagrams_254.dot
new file mode 100644
index 0000000000000000000000000000000000000000..25d0531c069fa0f30bf838fb161ce75c60799a85
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_254.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=LR
+	N0 [label="Forensic Analysis" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+	N1 [label="Rescue Coordination" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+	N2 [label="SWAT Team Activation" color="#9C27B0" fillcolor="#E1BEE7" shape=document style=filled]
+	N3 [label="Law Enforcement Database Check" color="#FFB2A5" fillcolor="#FFDCD6" shape=database style=filled]
+	N4 [label="Traffic Control" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+	N5 [label="Disaster Relief Coordination" color="#9C27B0" fillcolor="#E1BEE7" shape=preparation style=filled]
+	N6 [label="Inmate Transport" color="#9C27B0" fillcolor="#E1BEE7" shape=action style=filled]
+	N7 [label="Witness Interview" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	N8 [label="Surveillance Review" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+	N9 [label="Suspect Identification" color="#FFEB3B" fillcolor="#FFF9C4" shape=document style=filled]
+	N10 [label="Shelter Setup" color="#9C27B0" fillcolor="#E1BEE7" shape=database style=filled]
+	N11 [label="Border Security" color="#FFEB3B" fillcolor="#FFF9C4" shape=diamond style=filled]
+	N12 [label="Incident Reporting" color="#9C27B0" fillcolor="#E1BEE7" shape=inputoutput style=filled]
+	N13 [label="Public Warning" color="#FFB2A5" fillcolor="#FFDCD6" shape=database style=filled]
+	S0 [label="" color="#FFEB3B" fillcolor="#FFF9C4" 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="#FFEB3B" fillcolor="#FFF9C4" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFEB3B" fillcolor="#FFF9C4" 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_Post_Incident Review {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Post_Incident Review"
+		nest0_0 [label="Evacuation Planning" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+		nest0_1 [label="Crime Scene Analysis" color="#FFEB3B" fillcolor="#FFF9C4" shape=multipledocuments style=filled]
+		nest0_2 [label="Court Testimony" color="#FFB2A5" fillcolor="#FFDCD6" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Evidence Collection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Evidence Collection"
+		nest1_0 [label="Patrol Scheduling" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+		nest1_1 [label="Bomb Disposal" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+		nest1_2 [label="Victim Support Services" color="#9C27B0" fillcolor="#E1BEE7" shape=document 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="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest1_0 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N1 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N6 -> S0 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S2 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N8 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#FFB2A5" 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_medium/diagrams_254.txt b/test/diagrams/scanned_medium/diagrams_254.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e5f239c5fcb17ab86f11a0c3f5f51e767a762573
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_254.txt
@@ -0,0 +1,33 @@
+<Bomb Disposal, connectedTo, Victim Support Services>
+<Border Security, connectedTo, Incident Reporting>
+<Court Testimony, connectedTo, Public Warning>
+<Crime Scene Analysis, connectedTo, Court Testimony>
+<Disaster Relief Coordination, connectedTo, Inmate Transport>
+<Evacuation Planning, connectedTo, Crime Scene Analysis>
+<Forensic Analysis, connectedTo, Law Enforcement Database Check>
+<Forensic Analysis, connectedTo, Rescue Coordination>
+<Incident Reporting, connectedTo, Public Warning>
+<Inmate Transport, connectedTo, Border Security>
+<Inmate Transport, connectedTo, Patrol Scheduling>
+<Inmate Transport, connectedTo, Public Warning>
+<Inmate Transport, connectedTo, Surveillance Review>
+<Inmate Transport, connectedTo, Suspect Identification>
+<Inmate Transport, connectedTo, Witness Interview>
+<Law Enforcement Database Check, connectedTo, Surveillance Review>
+<Law Enforcement Database Check, connectedTo, Traffic Control>
+<Patrol Scheduling, connectedTo, Bomb Disposal>
+<Rescue Coordination, connectedTo, Incident Reporting>
+<Rescue Coordination, connectedTo, Law Enforcement Database Check>
+<Rescue Coordination, connectedTo, SWAT Team Activation>
+<Rescue Coordination, connectedTo, Shelter Setup>
+<Rescue Coordination, connectedTo, Traffic Control>
+<SWAT Team Activation, connectedTo, Law Enforcement Database Check>
+<Shelter Setup, connectedTo, Border Security>
+<Surveillance Review, connectedTo, Suspect Identification>
+<Suspect Identification, connectedTo, Shelter Setup>
+<Traffic Control, connectedTo, Disaster Relief Coordination>
+<Traffic Control, connectedTo, Surveillance Review>
+<Traffic Control, connectedTo, Witness Interview>
+<Victim Support Services, connectedTo, Rescue Coordination>
+<Witness Interview, connectedTo, Evacuation Planning>
+<Witness Interview, connectedTo, Surveillance Review>
diff --git a/test/diagrams/scanned_medium/diagrams_255.txt b/test/diagrams/scanned_medium/diagrams_255.txt
new file mode 100644
index 0000000000000000000000000000000000000000..95ac9b51347e490c080991563a7ca4fe1b4416c2
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_255.txt
@@ -0,0 +1,36 @@
+<Animation Production, connectedTo, Editing Process>
+<Audience Feedback, distributes, Premiere Event>
+<Awards Ceremony Production, connectedTo, Script Writing>
+<Budget Planning, connectedTo, Streaming Setup>
+<Casting Call, connectedTo, Ticketing Sales>
+<Casting Call, connectedTo, Trailer Production>
+<Costume Design, connectedTo, Location Scouting>
+<Editing Process, connectedTo, Trailer Production>
+<Editing Process, secures, Film Festival Submission>
+<Film Distribution, connectedTo, Trailer Production>
+<Film Distribution, monetizes, Casting Call>
+<Film Festival Submission, connectedTo, Scene Scheduling>
+<Lighting Setup, connectedTo, Sound Engineering>
+<Location Scouting, connectedTo, Stunt Coordination>
+<Music Composition, connectedTo, Costume Design>
+<Premiere Event, connectedTo, Game Development>
+<Press Junket, connectedTo, Animation Production>
+<Scene Scheduling, connectedTo, Audience Feedback>
+<Scene Scheduling, connectedTo, Lighting Setup>
+<Scene Shooting, connectedTo, Film Distribution>
+<Script Writing, creates, Press Junket>
+<Sound Engineering, connectedTo, Audience Feedback>
+<Sponsorship Acquisition, connectedTo, Audience Feedback>
+<Sponsorship Acquisition, connectedTo, Casting Call>
+<Sponsorship Acquisition, connectedTo, Film Festival Submission>
+<Sponsorship Acquisition, connectedTo, Music Composition>
+<Sponsorship Acquisition, connectedTo, Premiere Event>
+<Sponsorship Acquisition, connectedTo, Stunt Coordination>
+<Streaming Setup, connectedTo, Awards Ceremony Production>
+<Streaming Setup, connectedTo, Film Festival Submission>
+<Stunt Coordination, connectedTo, Scene Shooting>
+<Ticketing Sales, connectedTo, Editing Process>
+<Ticketing Sales, connectedTo, Trailer Production>
+<Trailer Production, connectedTo, Budget Planning>
+<Trailer Production, connectedTo, Scene Scheduling>
+<Trailer Production, connectedTo, Streaming Setup>
diff --git a/test/diagrams/scanned_medium/diagrams_256.dot b/test/diagrams/scanned_medium/diagrams_256.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ec51cc94a5c3615206691d7ac03ed6de08466109
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_256.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=LR
+	N0 [label="Ecosystem Restoration" color="#F06292" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N1 [label="Environmental Impact Assessment" color="#F06292" fillcolor="#FCE4EC" shape=multipledocuments style=filled]
+	N2 [label="Environmental Education Programs" color="#5C6BC0" fillcolor="#E8EAF6" shape=predefinedprocess style=filled]
+	N3 [label="Biodiversity Conservation" color="#F06292" fillcolor="#FCE4EC" shape=action style=filled]
+	N4 [label="Species Reintroduction" color="#BDBDBD" fillcolor="#F5F5F5" shape=rect style=filled]
+	N5 [label="Resource Recovery" color="#BDBDBD" fillcolor="#F5F5F5" shape=database style=filled]
+	N6 [label="Citizen Science Initiative" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+	N7 [label="Air Quality Monitoring" color="#F06292" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N8 [label="Recycling Process" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N9 [label="Ecological Footprint Analysis" color="#5C6BC0" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	N10 [label="Carbon Footprint Calculation" color="#F06292" fillcolor="#FCE4EC" shape=rect style=filled]
+	N11 [label="Hazardous Material Handling" color="#F06292" fillcolor="#FCE4EC" shape=diamond style=filled]
+	S0 [label="" color="#BDBDBD" fillcolor="#F5F5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#5C6BC0" fillcolor="#E8EAF6" 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_Renewable Energy Project Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Renewable Energy Project Development"
+		nest0_0 [label="Environmental Research" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+		nest0_1 [label="Coastal Erosion Control" color="#F06292" fillcolor="#FCE4EC" shape=database style=filled]
+		nest0_2 [label="Policy Advocacy" color="#BDBDBD" fillcolor="#F5F5F5" shape=document style=filled]
+	}
+	subgraph cluster_Emission Reporting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Emission Reporting"
+		nest1_0 [label="Noise Pollution Measurement" color="#5C6BC0" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+		nest1_1 [label="Green Certification" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+		nest1_2 [label="Groundwater Monitoring" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+		nest1_3 [label="Public Awareness Campaign" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	}
+	N0 -> N1 [color="#BDBDBD" penwidth=1.5 style=dashed 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#5C6BC0" 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="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N2 [color="#000000" penwidth=1.5 style=dashed label="educates" dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N9 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> S2 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	S2 -> N4 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	S2 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	M2 -> N10 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_256.txt b/test/diagrams/scanned_medium/diagrams_256.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3e2ece7eab2284c441f410bfdf100f20d9b82860
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_256.txt
@@ -0,0 +1,34 @@
+<Air Quality Monitoring, connectedTo, Noise Pollution Measurement>
+<Air Quality Monitoring, connectedTo, Recycling Process>
+<Biodiversity Conservation, connectedTo, Carbon Footprint Calculation>
+<Biodiversity Conservation, connectedTo, Ecological Footprint Analysis>
+<Biodiversity Conservation, connectedTo, Environmental Research>
+<Biodiversity Conservation, connectedTo, Recycling Process>
+<Biodiversity Conservation, connectedTo, Species Reintroduction>
+<Carbon Footprint Calculation, connectedTo, Hazardous Material Handling>
+<Citizen Science Initiative, connectedTo, Air Quality Monitoring>
+<Coastal Erosion Control, connectedTo, Policy Advocacy>
+<Ecological Footprint Analysis, connectedTo, Carbon Footprint Calculation>
+<Ecosystem Restoration, connectedTo, Citizen Science Initiative>
+<Ecosystem Restoration, connectedTo, Environmental Impact Assessment>
+<Environmental Education Programs, connectedTo, Biodiversity Conservation>
+<Environmental Education Programs, connectedTo, Carbon Footprint Calculation>
+<Environmental Education Programs, connectedTo, Citizen Science Initiative>
+<Environmental Education Programs, connectedTo, Recycling Process>
+<Environmental Education Programs, connectedTo, Resource Recovery>
+<Environmental Education Programs, connectedTo, Species Reintroduction>
+<Environmental Impact Assessment, connectedTo, Air Quality Monitoring>
+<Environmental Impact Assessment, connectedTo, Carbon Footprint Calculation>
+<Environmental Impact Assessment, connectedTo, Citizen Science Initiative>
+<Environmental Impact Assessment, connectedTo, Environmental Education Programs>
+<Environmental Research, connectedTo, Coastal Erosion Control>
+<Green Certification, connectedTo, Groundwater Monitoring>
+<Groundwater Monitoring, connectedTo, Public Awareness Campaign>
+<Noise Pollution Measurement, connectedTo, Green Certification>
+<Policy Advocacy, educates, Environmental Education Programs>
+<Public Awareness Campaign, connectedTo, Ecological Footprint Analysis>
+<Recycling Process, connectedTo, Ecological Footprint Analysis>
+<Resource Recovery, connectedTo, Air Quality Monitoring>
+<Resource Recovery, connectedTo, Citizen Science Initiative>
+<Species Reintroduction, connectedTo, Citizen Science Initiative>
+<Species Reintroduction, connectedTo, Resource Recovery>
diff --git a/test/diagrams/scanned_medium/diagrams_257.dot b/test/diagrams/scanned_medium/diagrams_257.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5d8c64d1bb27f9c7c60d6e9a6349aedacca4ca8f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_257.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=RL
+	N0 [label="Legal Advisory" color="#CB9BE1" fillcolor="#F2E6F5" shape=parallelogram style=filled]
+	N1 [label="Service Registration" color="#CB9BE1" fillcolor="#F2E6F5" shape=predefinedprocess style=filled]
+	N2 [label="Grant Distribution" color="#CB9BE1" fillcolor="#F2E6F5" shape=parallelogram style=filled]
+	N3 [label="Public Health Initiative" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+	N4 [label="Census Collection" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	N5 [label="Public Records Request" color="#FFD54F" fillcolor="#FFF8E1" shape=preparation style=filled]
+	N6 [label="Emergency Preparedness" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+	N7 [label="Legislation Review" color="#CB9BE1" fillcolor="#F2E6F5" shape=parallelogram style=filled]
+	N8 [label="Permit Application" color="#D3EB9F" fillcolor="#F8FDD3" shape=rectangle style=filled]
+	N9 [label="Public Sector Procurement" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+	N10 [label="Whistleblower Protection" color="#FFD54F" fillcolor="#FFF8E1" shape=rectangle style=filled]
+	N11 [label="Business Licensing" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+	N12 [label="National Defense" color="#FFD54F" fillcolor="#FFF8E1" shape=inputoutput style=filled]
+	N13 [label="Public Hearing" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N14 [label="Compliance Checking" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	N15 [label="Tax Filing" color="#FFD54F" fillcolor="#FFF8E1" shape=action style=filled]
+	S0 [label="" color="#D3EB9F" fillcolor="#F8FDD3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFD54F" fillcolor="#FFF8E1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Social Security Administration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Social Security Administration"
+		nest0_0 [label="Border Control" color="#CB9BE1" fillcolor="#F2E6F5" shape=hexagon style=filled]
+		nest0_1 [label="Policy Drafting" color="#D3EB9F" fillcolor="#F8FDD3" shape=preparation style=filled]
+		nest0_2 [label="Diplomatic Negotiation" color="#D3EB9F" fillcolor="#F8FDD3" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Code Enforcement {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Code Enforcement"
+		nest1_0 [label="Driver's License Renewal" color="#FFD54F" fillcolor="#FFF8E1" shape=hexagon style=filled]
+		nest1_1 [label="Open Government Data Initiative" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+		nest1_2 [label="Urban Planning" color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+		nest1_3 [label="Public Consultation" color="#FFD54F" fillcolor="#FFF8E1" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed 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="#CB9BE1" penwidth=1.5 style=dashed label="evaluates" 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="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#D3EB9F" penwidth=1.5 style=solid label="researches" dir=forward]
+	N11 -> N12 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N5 [color="#CB9BE1" 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="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	S2 -> N14 [color="#FFD54F" penwidth=1.5 style=solid label="registers" dir=forward]
+	S2 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=dashed label="manages" dir=forward]
+	N1 -> M1 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	M1 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_257.txt b/test/diagrams/scanned_medium/diagrams_257.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4d9162b2b8da563564a0d61d666232d6fcbb1083
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_257.txt
@@ -0,0 +1,34 @@
+<Border Control, connectedTo, Policy Drafting>
+<Business Licensing, connectedTo, Driver's License Renewal>
+<Business Licensing, connectedTo, National Defense>
+<Census Collection, connectedTo, Public Records Request>
+<Compliance Checking, connectedTo, Tax Filing>
+<Diplomatic Negotiation, connectedTo, Public Records Request>
+<Driver's License Renewal, connectedTo, Open Government Data Initiative>
+<Emergency Preparedness, connectedTo, Legislation Review>
+<Grant Distribution, connectedTo, Emergency Preparedness>
+<Grant Distribution, connectedTo, National Defense>
+<Grant Distribution, connectedTo, Public Health Initiative>
+<Grant Distribution, connectedTo, Public Records Request>
+<Legal Advisory, connectedTo, Service Registration>
+<Legislation Review, connectedTo, Permit Application>
+<National Defense, connectedTo, Public Hearing>
+<Open Government Data Initiative, connectedTo, Urban Planning>
+<Permit Application, connectedTo, Public Sector Procurement>
+<Policy Drafting, connectedTo, Diplomatic Negotiation>
+<Public Consultation, connectedTo, Grant Distribution>
+<Public Health Initiative, connectedTo, Border Control>
+<Public Health Initiative, connectedTo, Census Collection>
+<Public Health Initiative, connectedTo, Permit Application>
+<Public Health Initiative, connectedTo, Public Records Request>
+<Public Health Initiative, connectedTo, Public Sector Procurement>
+<Public Health Initiative, manages, Business Licensing>
+<Public Health Initiative, registers, Compliance Checking>
+<Public Hearing, connectedTo, Compliance Checking>
+<Public Records Request, evaluates, Emergency Preparedness>
+<Public Sector Procurement, connectedTo, Whistleblower Protection>
+<Service Registration, connectedTo, Business Licensing>
+<Service Registration, connectedTo, Grant Distribution>
+<Service Registration, connectedTo, Public Records Request>
+<Urban Planning, connectedTo, Public Consultation>
+<Whistleblower Protection, researches, Business Licensing>
diff --git a/test/diagrams/scanned_medium/diagrams_258.dot b/test/diagrams/scanned_medium/diagrams_258.dot
new file mode 100644
index 0000000000000000000000000000000000000000..71fb178cd937b669b537e3fe1f93e1303db4c6e8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_258.dot
@@ -0,0 +1,62 @@
+digraph {
+	rankdir=RL
+	N0 [label="Self_Checkout Assistance" color="#BDBDBD" fillcolor="#F5F5F5" shape=inputoutput style=filled]
+	N1 [label="Customer Survey" color="#3F51B5" fillcolor="#C5CAE9" shape=document style=filled]
+	N2 [label="Gift Wrapping" color="#BDBDBD" fillcolor="#F5F5F5" shape=predefinedprocess style=filled]
+	N3 [label="Order Fulfillment" color="#3F51B5" fillcolor="#C5CAE9" shape=diamond style=filled]
+	N4 [label="Curbside Delivery" color="#BDBDBD" fillcolor="#F5F5F5" shape=action style=filled]
+	N5 [label="Return Handling" color="#3F51B5" fillcolor="#C5CAE9" shape=action style=filled]
+	N6 [label="Warehouse Picking" color="#3F51B5" fillcolor="#C5CAE9" shape=diamond style=filled]
+	N7 [label="Receipt Issuing" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+	N8 [label="Daily Report Generation" color="#CD8FF2" fillcolor="#ECCFF5" shape=parallelogram style=filled]
+	N9 [label="Sales Forecasting" color="#3F51B5" fillcolor="#C5CAE9" shape=inputoutput style=filled]
+	S1 [label="" color="#CD8FF2" fillcolor="#ECCFF5" 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="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Staff Training {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Staff Training"
+		nest0_0 [label="Seasonal Sales Planning" color="#BDBDBD" fillcolor="#F5F5F5" shape=document style=filled]
+		nest0_1 [label="Customer Checkout" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+		nest0_2 [label="Loyalty Program Update" color="#3F51B5" fillcolor="#C5CAE9" shape=box style=filled]
+		nest0_3 [label="Product Demonstration" color="#3F51B5" fillcolor="#C5CAE9" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Online Order Pickup {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Online Order Pickup"
+		nest1_0 [label="Shelf Restocking" color="#CD8FF2" fillcolor="#ECCFF5" shape=rectangle style=filled]
+		nest1_1 [label="Loss Prevention" color="#3F51B5" fillcolor="#C5CAE9" shape=multipledocuments style=filled]
+		nest1_2 [label="Point of Sale System Update" color="#CD8FF2" fillcolor="#ECCFF5" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#3F51B5" penwidth=1.5 style=dashed label="processes" dir=forward]
+	N1 -> N2 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N5 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N5 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N3 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#3F51B5" penwidth=1.5 style=dashed label="engages" dir=forward]
+	M1 -> N4 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N3 -> M2 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	M2 -> N5 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_258.txt b/test/diagrams/scanned_medium/diagrams_258.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2f9a4d5b21a579587c95480762dd97528b421146
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_258.txt
@@ -0,0 +1,25 @@
+<Curbside Delivery, connectedTo, Return Handling>
+<Customer Checkout, connectedTo, Loyalty Program Update>
+<Customer Survey, connectedTo, Curbside Delivery>
+<Customer Survey, connectedTo, Gift Wrapping>
+<Customer Survey, connectedTo, Return Handling>
+<Customer Survey, connectedTo, Seasonal Sales Planning>
+<Customer Survey, connectedTo, Shelf Restocking>
+<Daily Report Generation, connectedTo, Sales Forecasting>
+<Gift Wrapping, connectedTo, Order Fulfillment>
+<Gift Wrapping, engages, Curbside Delivery>
+<Loss Prevention, connectedTo, Point of Sale System Update>
+<Loyalty Program Update, connectedTo, Product Demonstration>
+<Order Fulfillment, connectedTo, Curbside Delivery>
+<Order Fulfillment, connectedTo, Return Handling>
+<Point of Sale System Update, connectedTo, Return Handling>
+<Product Demonstration, connectedTo, Return Handling>
+<Receipt Issuing, connectedTo, Daily Report Generation>
+<Return Handling, connectedTo, Warehouse Picking>
+<Seasonal Sales Planning, connectedTo, Customer Checkout>
+<Self_Checkout Assistance, connectedTo, Daily Report Generation>
+<Self_Checkout Assistance, connectedTo, Order Fulfillment>
+<Self_Checkout Assistance, connectedTo, Return Handling>
+<Self_Checkout Assistance, processes, Customer Survey>
+<Shelf Restocking, connectedTo, Loss Prevention>
+<Warehouse Picking, connectedTo, Receipt Issuing>
diff --git a/test/diagrams/scanned_medium/diagrams_259.txt b/test/diagrams/scanned_medium/diagrams_259.txt
new file mode 100644
index 0000000000000000000000000000000000000000..830060d6188b8e9a406390855c604a0edf0203e3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_259.txt
@@ -0,0 +1,33 @@
+<Autonomous Driving Software Development, connectedTo, Paint Application>
+<Autonomous Driving Software Development, connectedTo, Part Manufacturing>
+<Crash Simulation, connectedTo, Electric Vehicle Battery Production>
+<Crash Simulation, connectedTo, Maintenance Scheduling>
+<Customer Relationship Management, connectedTo, Component Testing>
+<Customer Relationship Management, connectedTo, Paint Application>
+<Customer Relationship Management, connectedTo, Tire Rotation>
+<Customer Relationship Management, connectedTo, Vehicle Financing>
+<Customer Test Drive, connectedTo, Global Supply Chain Management>
+<Diagnostic Trouble Code Reading, connectedTo, Tire Rotation>
+<Electric Vehicle Battery Production, connectedTo, Engine Installation>
+<Engine Installation, connectedTo, Component Testing>
+<Engine Installation, connectedTo, Inventory Tracking>
+<Fluid Level Check, connectedTo, Inventory Tracking>
+<Global Supply Chain Management, connectedTo, Part Manufacturing>
+<Infotainment System Integration, connectedTo, Research and Development>
+<Inventory Tracking, connectedTo, Component Testing>
+<Maintenance Scheduling, connectedTo, Fluid Level Check>
+<Paint Application, connectedTo, Component Testing>
+<Paint Application, connectedTo, Diagnostic Trouble Code Reading>
+<Part Manufacturing, connectedTo, Engine Installation>
+<Part Manufacturing, connectedTo, Infotainment System Integration>
+<Part Manufacturing, connectedTo, Paint Application>
+<Part Manufacturing, connectedTo, Spare Parts Order>
+<Research and Development, connectedTo, Customer Test Drive>
+<Spare Parts Order, connectedTo, Customer Relationship Management>
+<Spare Parts Order, connectedTo, Paint Application>
+<Spare Parts Order, connectedTo, Tire Rotation>
+<Tire Rotation, connectedTo, Electric Vehicle Battery Production>
+<Tire Rotation, connectedTo, Engine Installation>
+<Tire Rotation, connects, Crash Simulation>
+<Vehicle Financing, connectedTo, Paint Application>
+<Vehicle Financing, tests, Component Testing>
diff --git a/test/diagrams/scanned_medium/diagrams_26.dot b/test/diagrams/scanned_medium/diagrams_26.dot
new file mode 100644
index 0000000000000000000000000000000000000000..68f292df2150eef89b3a6b0920d8b7e6a9e3a23f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_26.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=LR
+	N0 [label="Preclinical Testing" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N1 [label="Adverse Event Reporting" color="#FFB74D" fillcolor="#FFF3E0" shape=rect style=filled]
+	N2 [label="Batch Release" color="#FFB74D" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+	N3 [label="Post_Marketing Surveillance" color="#AABEC6" fillcolor="#E0E6E9" shape=preparation style=filled]
+	N4 [label="Health Economics Outcomes Research" color="#FFB74D" fillcolor="#FFF3E0" shape=database style=filled]
+	N5 [label="Patient Adherence Programs" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N6 [label="Patent Application" color="#9C27B0" fillcolor="#E1BEE7" shape=vnode_shape style=filled]
+	N7 [label="Solid Dosage Formulation" color="#9C27B0" fillcolor="#E1BEE7" shape=rectangle style=filled]
+	N8 [label="Clinical Supply Management" color="#FFB74D" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N9 [label="Global Regulatory Affairs" color="#AABEC6" fillcolor="#E0E6E9" shape=parallelogram style=filled]
+	N10 [label="Clinical Trial Phases" color="#AABEC6" fillcolor="#E0E6E9" shape=database style=filled]
+	N11 [label="Sales and Marketing Strategy" color="#FFB74D" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N0 -> N1 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#AABEC6" penwidth=1.5 style=dashed label="advises" 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 label="packages" dir=forward]
+	N5 -> N6 [color="#FFB74D" penwidth=1.5 style=dashed label="purifies" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFB74D" penwidth=1.5 style=dashed label="evaluates" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#AABEC6" penwidth=1.5 style=solid label="partners" dir=forward]
+	N10 -> N11 [color="#FFB74D" penwidth=1.5 style=dashed label="prescribes" dir=forward]
+	N4 -> N10 [color="#AABEC6" penwidth=1.5 style=dashed label="distributes" dir=forward]
+	N1 -> N9 [color="#9C27B0" penwidth=1.5 style=solid label="transports" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_26.txt b/test/diagrams/scanned_medium/diagrams_26.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e7acdebcc1275a3d8271ef3f35346aa6a7d67e1c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_26.txt
@@ -0,0 +1,13 @@
+<Adverse Event Reporting, advises, Batch Release>
+<Adverse Event Reporting, transports, Global Regulatory Affairs>
+<Batch Release, connectedTo, Post_Marketing Surveillance>
+<Clinical Supply Management, connectedTo, Global Regulatory Affairs>
+<Clinical Trial Phases, prescribes, Sales and Marketing Strategy>
+<Global Regulatory Affairs, partners, Clinical Trial Phases>
+<Health Economics Outcomes Research, distributes, Clinical Trial Phases>
+<Health Economics Outcomes Research, packages, Patient Adherence Programs>
+<Patent Application, connectedTo, Solid Dosage Formulation>
+<Patient Adherence Programs, purifies, Patent Application>
+<Post_Marketing Surveillance, connectedTo, Health Economics Outcomes Research>
+<Preclinical Testing, connectedTo, Adverse Event Reporting>
+<Solid Dosage Formulation, evaluates, Clinical Supply Management>
diff --git a/test/diagrams/scanned_medium/diagrams_260.dot b/test/diagrams/scanned_medium/diagrams_260.dot
new file mode 100644
index 0000000000000000000000000000000000000000..16f42ee405f822edc2dbbf4b0891de7df647641f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_260.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=LR
+	N0 [label="Launch Window Calculation" color="#B8C0F5" fillcolor="#ECF0FD" shape=hexagon style=filled]
+	N1 [label="Structural Analysis" color="#DCE775" fillcolor="#FCFCE7" shape=rectangle style=filled]
+	N2 [label="Mission Debriefing" color="#B8C0F5" fillcolor="#ECF0FD" shape=rectangle style=filled]
+	N3 [label="Aviation Safety Audit" color="#B8C0F5" fillcolor="#ECF0FD" shape=preparation style=filled]
+	N4 [label="Avionics Installation" color="#B8C0F5" fillcolor="#ECF0FD" shape=diamond style=filled]
+	N5 [label="Aircraft Manufacturing" color="#B8C0F5" fillcolor="#ECF0FD" shape=database style=filled]
+	N6 [label="Aircraft Maintenance Log" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+	N7 [label="Re_entry Vehicle Design" color="#BCB88A" fillcolor="#F5F5DC" shape=document style=filled]
+	N8 [label="Thermal Shield Testing" color="#B8C0F5" fillcolor="#ECF0FD" shape=preparation style=filled]
+	N9 [label="Payload Integration" color="#B8C0F5" fillcolor="#ECF0FD" shape=database style=filled]
+	N10 [label="Component Recovery" color="#DCE775" fillcolor="#FCFCE7" shape=predefinedprocess style=filled]
+	N11 [label="Satellite Configuration" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+	N12 [label="Hypersonic Flight Testing" color="#B8C0F5" fillcolor="#ECF0FD" shape=database style=filled]
+	N13 [label="Flight Simulation" color="#B8C0F5" fillcolor="#ECF0FD" shape=document style=filled]
+	N14 [label="Flight Crew Training" color="#DCE775" fillcolor="#FCFCE7" shape=multipledocuments style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" 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]
+	S2 [label="" color="#B8C0F5" fillcolor="#ECF0FD" 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_Runway Inspection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Runway Inspection"
+		nest0_0 [label="Mission Planning" color="#BCB88A" fillcolor="#F5F5DC" shape=hexagon style=filled]
+		nest0_1 [label="System Reboot" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+		nest0_2 [label="Astronaut Training" color="#DCE775" fillcolor="#FCFCE7" shape=multipledocuments style=filled]
+	}
+	subgraph cluster_Orbit Adjustment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Orbit Adjustment"
+		nest1_0 [label="New Material Development" color="#B8C0F5" fillcolor="#ECF0FD" shape=diamond style=filled]
+		nest1_1 [label="Ground Station Coordination" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+		nest1_2 [label="Fueling Procedure" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+		nest1_3 [label="Engine Overhaul" color="#BCB88A" fillcolor="#F5F5DC" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#B8C0F5" 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="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#DCE775" 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 label="manufactures" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N13 -> nest1_0 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N3 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid label="recovers" dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S2 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N14 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N4 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_260.txt b/test/diagrams/scanned_medium/diagrams_260.txt
new file mode 100644
index 0000000000000000000000000000000000000000..70c06e1870b69345b9ee014fa7027f18de1c1df9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_260.txt
@@ -0,0 +1,34 @@
+<Aircraft Maintenance Log, connectedTo, Re_entry Vehicle Design>
+<Aircraft Manufacturing, connectedTo, Aircraft Maintenance Log>
+<Astronaut Training, connectedTo, Flight Simulation>
+<Aviation Safety Audit, connectedTo, Avionics Installation>
+<Aviation Safety Audit, connectedTo, Payload Integration>
+<Aviation Safety Audit, recovers, Component Recovery>
+<Avionics Installation, connectedTo, Aircraft Maintenance Log>
+<Avionics Installation, connectedTo, Aircraft Manufacturing>
+<Component Recovery, connectedTo, Satellite Configuration>
+<Engine Overhaul, connectedTo, Aviation Safety Audit>
+<Flight Simulation, connectedTo, Flight Crew Training>
+<Flight Simulation, connectedTo, New Material Development>
+<Fueling Procedure, connectedTo, Engine Overhaul>
+<Ground Station Coordination, connectedTo, Fueling Procedure>
+<Hypersonic Flight Testing, connectedTo, Flight Simulation>
+<Launch Window Calculation, connectedTo, Structural Analysis>
+<Mission Debriefing, connectedTo, Aircraft Maintenance Log>
+<Mission Debriefing, connectedTo, Aviation Safety Audit>
+<Mission Debriefing, connectedTo, Avionics Installation>
+<Mission Debriefing, connectedTo, Flight Crew Training>
+<Mission Debriefing, connectedTo, Flight Simulation>
+<Mission Planning, connectedTo, System Reboot>
+<New Material Development, connectedTo, Ground Station Coordination>
+<Payload Integration, connectedTo, Mission Planning>
+<Payload Integration, manufactures, Component Recovery>
+<Re_entry Vehicle Design, connectedTo, Thermal Shield Testing>
+<Satellite Configuration, connectedTo, Hypersonic Flight Testing>
+<Structural Analysis, connectedTo, Aircraft Maintenance Log>
+<Structural Analysis, connectedTo, Mission Debriefing>
+<System Reboot, connectedTo, Astronaut Training>
+<Thermal Shield Testing, connectedTo, Component Recovery>
+<Thermal Shield Testing, connectedTo, Flight Crew Training>
+<Thermal Shield Testing, connectedTo, Flight Simulation>
+<Thermal Shield Testing, connectedTo, Payload Integration>
diff --git a/test/diagrams/scanned_medium/diagrams_261.dot b/test/diagrams/scanned_medium/diagrams_261.dot
new file mode 100644
index 0000000000000000000000000000000000000000..59dc0076ef86ec9854bc502e141b9b80dae9f9ba
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_261.dot
@@ -0,0 +1,71 @@
+digraph {
+	rankdir=TB
+	N0 [label="Policy Renewal" color="#FFEB3B" fillcolor="#FFF9C4" shape=inputoutput style=filled]
+	N1 [label="Customer Communication" color="#FFEB3B" fillcolor="#FFF9C4" shape=action style=filled]
+	N2 [label="Claims Litigation Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=ellipse style=filled]
+	N3 [label="Policy Issuance" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	N4 [label="Policy Application" color="#E0E0E0" fillcolor="#EBEBEB" shape=hexagon style=filled]
+	N5 [label="Actuarial Analysis" color="#FFEB3B" fillcolor="#FFF9C4" shape=preparation style=filled]
+	N6 [label="Agent Training" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	N7 [label="Broker Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+	N8 [label="Reinsurance Negotiation" color="#E0E0E0" fillcolor="#EBEBEB" shape=predefinedprocess style=filled]
+	N9 [label="Claim Submission" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+	N10 [label="Investment Management for Reserves" color="#A2D0FF" fillcolor="#E8F0FF" shape=inputoutput style=filled]
+	N11 [label="Property Damage Assessment" color="#FFEB3B" fillcolor="#FFF9C4" shape=predefinedprocess style=filled]
+	N12 [label="Business Interruption Coverage" color="#FFEB3B" fillcolor="#FFF9C4" shape=multipledocuments style=filled]
+	N13 [label="Subrogation" color="#A2D0FF" fillcolor="#E8F0FF" shape=diamond style=filled]
+	N14 [label="Catastrophe Modeling" color="#FFEB3B" fillcolor="#FFF9C4" shape=document style=filled]
+	N15 [label="Benefit Payout" color="#E0E0E0" fillcolor="#EBEBEB" shape=inputoutput style=filled]
+	N16 [label="Telematics Data Analysis" color="#E0E0E0" fillcolor="#EBEBEB" shape=ellipse style=filled]
+	N17 [label="Customer Support" color="#E0E0E0" fillcolor="#EBEBEB" shape=inputoutput style=filled]
+	S0 [label="" color="#FFEB3B" fillcolor="#FFF9C4" 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]
+	M0 [label="" color="#E0E0E0" fillcolor="#EBEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Life Insurance Underwriting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Life Insurance Underwriting"
+		nest0_0 [label="Payment Processing" color="#FFEB3B" fillcolor="#FFF9C4" shape=vnode_shape style=filled]
+		nest0_1 [label="Digital Policy Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=rectangle style=filled]
+	}
+	subgraph cluster_Auto Accident Claims {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Auto Accident Claims"
+		nest1_0 [label="Cyber Insurance Policy" color="#E0E0E0" fillcolor="#EBEBEB" shape=ellipse style=filled]
+		nest1_1 [label="Underwriting" color="#A2D0FF" fillcolor="#E8F0FF" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N5 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N16 -> nest1_0 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N10 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N13 -> S1 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	S1 -> N16 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> M0 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N7 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N13 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_261.txt b/test/diagrams/scanned_medium/diagrams_261.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3bea66f7cbbc39e24722b7b5d9afc0ebca80efa6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_261.txt
@@ -0,0 +1,30 @@
+<Actuarial Analysis, connectedTo, Agent Training>
+<Actuarial Analysis, connectedTo, Business Interruption Coverage>
+<Actuarial Analysis, connectedTo, Property Damage Assessment>
+<Agent Training, connectedTo, Broker Management>
+<Benefit Payout, connectedTo, Telematics Data Analysis>
+<Broker Management, connectedTo, Reinsurance Negotiation>
+<Broker Management, connectedTo, Subrogation>
+<Business Interruption Coverage, connectedTo, Subrogation>
+<Catastrophe Modeling, connectedTo, Benefit Payout>
+<Claim Submission, connectedTo, Investment Management for Reserves>
+<Claims Litigation Management, connectedTo, Policy Issuance>
+<Customer Communication, connectedTo, Claims Litigation Management>
+<Cyber Insurance Policy, connectedTo, Underwriting>
+<Digital Policy Management, connectedTo, Actuarial Analysis>
+<Investment Management for Reserves, connectedTo, Property Damage Assessment>
+<Investment Management for Reserves, connectedTo, Subrogation>
+<Payment Processing, connectedTo, Digital Policy Management>
+<Policy Application, connectedTo, Actuarial Analysis>
+<Policy Application, connectedTo, Payment Processing>
+<Policy Application, connectedTo, Subrogation>
+<Policy Issuance, connectedTo, Policy Application>
+<Policy Renewal, connectedTo, Customer Communication>
+<Property Damage Assessment, connectedTo, Business Interruption Coverage>
+<Reinsurance Negotiation, connectedTo, Claim Submission>
+<Subrogation, connectedTo, Benefit Payout>
+<Subrogation, connectedTo, Catastrophe Modeling>
+<Subrogation, connectedTo, Telematics Data Analysis>
+<Telematics Data Analysis, connectedTo, Customer Support>
+<Telematics Data Analysis, connectedTo, Cyber Insurance Policy>
+<Underwriting, connectedTo, Investment Management for Reserves>
diff --git a/test/diagrams/scanned_medium/diagrams_262.dot b/test/diagrams/scanned_medium/diagrams_262.dot
new file mode 100644
index 0000000000000000000000000000000000000000..87d5dd0f599691e525fa626f422c22893968f356
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_262.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=RL
+	N0 [label="Threat Intelligence Gathering" color="#FBC02D" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N1 [label="Disaster Recovery Planning" color="#4CAF50" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N2 [label="Incident Response" color="#4CAF50" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N3 [label="Security Audit" color="#FBC02D" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N4 [label="Data Loss Prevention" color="#EAEFA5" fillcolor="#FDFCEB" shape=preparation style=filled]
+	N5 [label="DevSecOps Integration" color="#4CAF50" fillcolor="#C8E6C9" shape=database style=filled]
+	N6 [label="Physical Security Integration" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N7 [label="Security Awareness Training" color="#FBC02D" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	N8 [label="Security Information and Event Management" color="#FBC02D" fillcolor="#FFFDE7" shape=action style=filled]
+	N9 [label="Security Policy Development" color="#FBC02D" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N10 [label="Penetration Testing" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N11 [label="Risk Management Framework" color="#FBC02D" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	N12 [label="Mobile Security" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N13 [label="Vulnerability Assessment" color="#4CAF50" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	S0 [label="" color="#FBC02D" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#4CAF50" fillcolor="#C8E6C9" 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="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Web Application Firewall Deployment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Web Application Firewall Deployment"
+		nest0_0 [label="Intrusion Prevention" color="#4CAF50" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+		nest0_1 [label="Security Patch Management" color="#4CAF50" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+		nest0_2 [label="Firewall Configuration" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	}
+	subgraph cluster_Data Encryption {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Data Encryption"
+		nest1_0 [label="Compliance Monitoring" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+		nest1_1 [label="Backup and Recovery" color="#FBC02D" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+		nest1_2 [label="Threat Detection" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest0_0 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N5 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest1_0 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N1 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N9 -> S0 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> S1 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#EAEFA5" penwidth=1.5 style=solid label="complies" dir=forward]
+	S1 -> N8 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N11 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_262.txt b/test/diagrams/scanned_medium/diagrams_262.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6bf0e08b5e264137eacbdabcec206a74f64d83a0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_262.txt
@@ -0,0 +1,31 @@
+<Backup and Recovery, connectedTo, Threat Detection>
+<Compliance Monitoring, connectedTo, Backup and Recovery>
+<Data Loss Prevention, connectedTo, DevSecOps Integration>
+<Data Loss Prevention, connectedTo, Physical Security Integration>
+<DevSecOps Integration, complies, Penetration Testing>
+<DevSecOps Integration, connectedTo, Physical Security Integration>
+<DevSecOps Integration, connectedTo, Security Information and Event Management>
+<DevSecOps Integration, connectedTo, Security Policy Development>
+<DevSecOps Integration, connectedTo, Vulnerability Assessment>
+<Disaster Recovery Planning, connectedTo, Incident Response>
+<Disaster Recovery Planning, connectedTo, Intrusion Prevention>
+<Firewall Configuration, connectedTo, DevSecOps Integration>
+<Incident Response, connectedTo, Physical Security Integration>
+<Incident Response, connectedTo, Security Audit>
+<Intrusion Prevention, connectedTo, Security Patch Management>
+<Mobile Security, connectedTo, Vulnerability Assessment>
+<Penetration Testing, connectedTo, Compliance Monitoring>
+<Penetration Testing, connectedTo, Risk Management Framework>
+<Physical Security Integration, connectedTo, Risk Management Framework>
+<Physical Security Integration, connectedTo, Security Awareness Training>
+<Risk Management Framework, connectedTo, Mobile Security>
+<Security Audit, connectedTo, Data Loss Prevention>
+<Security Audit, connectedTo, Risk Management Framework>
+<Security Awareness Training, connectedTo, Security Information and Event Management>
+<Security Information and Event Management, connectedTo, Security Policy Development>
+<Security Patch Management, connectedTo, Firewall Configuration>
+<Security Policy Development, connectedTo, Mobile Security>
+<Security Policy Development, connectedTo, Penetration Testing>
+<Security Policy Development, connectedTo, Risk Management Framework>
+<Threat Detection, connectedTo, Disaster Recovery Planning>
+<Threat Intelligence Gathering, connectedTo, Disaster Recovery Planning>
diff --git a/test/diagrams/scanned_medium/diagrams_263.dot b/test/diagrams/scanned_medium/diagrams_263.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e0a604d7adf33e55b8bfd1fba169227a1e8ec33e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_263.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=RL
+	N0 [label="Remote Control" color="#AB47BC" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N1 [label="Scene Creation" color="#3F51B5" fillcolor="#C5CAE9" shape=rectangle style=filled]
+	N2 [label="Garage Door Control" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+	N3 [label="Energy Monitoring" color="#3F51B5" fillcolor="#C5CAE9" shape=diamond style=filled]
+	N4 [label="Energy Consumption Optimization" color="#AB47BC" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	N5 [label="Door Lock Management" color="#AB47BC" fillcolor="#F3E5F5" shape=rectangle style=filled]
+	N6 [label="Geofencing Trigger" color="#3F51B5" fillcolor="#C5CAE9" shape=parallelogram style=filled]
+	N7 [label="Voice Command" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	N8 [label="Security Alert" color="#AABEC6" fillcolor="#E0E6E9" shape=parallelogram style=filled]
+	N9 [label="Firmware Update" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N10 [label="Power Outage Notification" color="#AABEC6" fillcolor="#E0E6E9" shape=action style=filled]
+	N11 [label="Motion Detection" color="#3F51B5" fillcolor="#C5CAE9" shape=parallelogram style=filled]
+	N12 [label="Elderly Care Monitoring" color="#AABEC6" fillcolor="#E0E6E9" shape=document style=filled]
+	S0 [label="" color="#AB47BC" fillcolor="#F3E5F5" 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="#AABEC6" fillcolor="#E0E6E9" 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]
+	M2 [label="" color="#AB47BC" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Irrigation System Control {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Irrigation System Control"
+		nest0_0 [label="Guest Access Management" color="#3F51B5" fillcolor="#C5CAE9" shape=vnode_shape style=filled]
+		nest0_1 [label="Routine Scheduling" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+	}
+	subgraph cluster_Personalized Comfort Settings {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Personalized Comfort Settings"
+		nest1_0 [label="Smart Mirror Functionality" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+		nest1_1 [label="App Control" color="#3F51B5" fillcolor="#C5CAE9" shape=inputoutput style=filled]
+		nest1_2 [label="Home Security System Activation" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#3F51B5" 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="#AABEC6" 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="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N3 [color="#000000" 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="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest1_0 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S1 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N9 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M2 -> N12 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_264.dot b/test/diagrams/scanned_medium/diagrams_264.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5124c6343c662207ea478ae817b91d4006e8b477
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_264.dot
@@ -0,0 +1,69 @@
+digraph {
+	rankdir=RL
+	N0 [label="Public Wi_Fi Deployment" color="#A2D0FF" fillcolor="#E8F0FF" shape=preparation style=filled]
+	N1 [label="Noise Pollution Monitoring" color="#AF56A6" fillcolor="#DDCEDD" shape=rect style=filled]
+	N2 [label="Cybersecurity for Infrastructure" color="#3F51B5" fillcolor="#C5CAE9" shape=action style=filled]
+	N3 [label="Smart Traffic Lights" color="#3F51B5" fillcolor="#C5CAE9" shape=rect style=filled]
+	N4 [label="Emergency Response System" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	N5 [label="Smart Lighting" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	N6 [label="Energy Grid Management" color="#3F51B5" fillcolor="#C5CAE9" shape=vnode_shape style=filled]
+	N7 [label="Smart Building Integration" color="#AF56A6" fillcolor="#DDCEDD" shape=rect style=filled]
+	N8 [label="Smart Parking" color="#3F51B5" fillcolor="#C5CAE9" shape=vnode_shape style=filled]
+	N9 [label="Waste Management Optimization" color="#A2D0FF" fillcolor="#E8F0FF" shape=predefinedprocess style=filled]
+	N10 [label="Data Privacy Protection" color="#3F51B5" fillcolor="#C5CAE9" shape=parallelogram style=filled]
+	N11 [label="Sustainable Resource Management" color="#AF56A6" fillcolor="#DDCEDD" shape=rect style=filled]
+	N12 [label="Green Space Management" color="#AF56A6" fillcolor="#DDCEDD" shape=ellipse style=filled]
+	S0 [label="" color="#3F51B5" fillcolor="#C5CAE9" 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]
+	M1 [label="" color="#AF56A6" fillcolor="#DDCEDD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Environmental Sensor Network {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Environmental Sensor Network"
+		nest0_0 [label="E_governance Services" color="#3F51B5" fillcolor="#C5CAE9" shape=box style=filled]
+		nest0_1 [label="Water Management System" color="#AF56A6" fillcolor="#DDCEDD" shape=vnode_shape style=filled]
+		nest0_2 [label="Infrastructure Maintenance Alert" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+		nest0_3 [label="Waste Recycling Program" color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+	}
+	subgraph cluster_Smart Grid Security {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Smart Grid Security"
+		nest1_0 [label="Crowd Management" color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+		nest1_1 [label="Public Transport Tracking" color="#AF56A6" fillcolor="#DDCEDD" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#AF56A6" penwidth=1.5 style=solid label="resources" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#A2D0FF" 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="#AF56A6" 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="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N3 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S0 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	M0 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_264.txt b/test/diagrams/scanned_medium/diagrams_264.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7ee0f2bcfdb623b08ccb57eeada0182e950ce41f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_264.txt
@@ -0,0 +1,31 @@
+<Crowd Management, connectedTo, Public Transport Tracking>
+<Cybersecurity for Infrastructure, connectedTo, Smart Traffic Lights>
+<Data Privacy Protection, connectedTo, Crowd Management>
+<Data Privacy Protection, connectedTo, E_governance Services>
+<Data Privacy Protection, connectedTo, Sustainable Resource Management>
+<E_governance Services, connectedTo, Water Management System>
+<Emergency Response System, connectedTo, Smart Building Integration>
+<Emergency Response System, connectedTo, Smart Lighting>
+<Emergency Response System, connectedTo, Sustainable Resource Management>
+<Energy Grid Management, connectedTo, Data Privacy Protection>
+<Energy Grid Management, connectedTo, Green Space Management>
+<Energy Grid Management, connectedTo, Smart Building Integration>
+<Energy Grid Management, connectedTo, Sustainable Resource Management>
+<Energy Grid Management, connectedTo, Waste Management Optimization>
+<Infrastructure Maintenance Alert, connectedTo, Waste Recycling Program>
+<Noise Pollution Monitoring, connectedTo, Cybersecurity for Infrastructure>
+<Noise Pollution Monitoring, connectedTo, Sustainable Resource Management>
+<Public Transport Tracking, connectedTo, Smart Traffic Lights>
+<Public Wi_Fi Deployment, connectedTo, Smart Building Integration>
+<Public Wi_Fi Deployment, resources, Noise Pollution Monitoring>
+<Smart Building Integration, connectedTo, Smart Parking>
+<Smart Lighting, connectedTo, Energy Grid Management>
+<Smart Lighting, connectedTo, Smart Building Integration>
+<Smart Lighting, connectedTo, Sustainable Resource Management>
+<Smart Parking, connectedTo, Waste Management Optimization>
+<Smart Traffic Lights, connectedTo, Emergency Response System>
+<Smart Traffic Lights, connectedTo, Sustainable Resource Management>
+<Sustainable Resource Management, connectedTo, Green Space Management>
+<Waste Management Optimization, connectedTo, Data Privacy Protection>
+<Waste Recycling Program, connectedTo, Noise Pollution Monitoring>
+<Water Management System, connectedTo, Infrastructure Maintenance Alert>
diff --git a/test/diagrams/scanned_medium/diagrams_265.dot b/test/diagrams/scanned_medium/diagrams_265.dot
new file mode 100644
index 0000000000000000000000000000000000000000..78d57b0ae2bff0e74213e4bc35bc4c50f01c4ba2
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_265.dot
@@ -0,0 +1,70 @@
+digraph {
+	rankdir=BT
+	N0 [label="Protein Engineering" color="#B8C0F5" fillcolor="#ECF0FD" shape=diamond style=filled]
+	N1 [label="Computational Biology Modeling" color="#FFF176" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N2 [label="Clinical Trial Design" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N3 [label="Biosensor Development" color="#B8C0F5" fillcolor="#ECF0FD" shape=preparation style=filled]
+	N4 [label="Clinical Data Interpretation" color="#FFF176" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N5 [label="Quality Control" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N6 [label="Environmental Bioremediation" color="#A1887F" fillcolor="#EFEBE9" shape=ellipse style=filled]
+	N7 [label="Genomic Editing" color="#FFF176" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N8 [label="Biomanufacturing Scale_up" color="#B8C0F5" fillcolor="#ECF0FD" shape=rectangle style=filled]
+	N9 [label="Assay Development" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N10 [label="Bioprocess Optimization" color="#B8C0F5" fillcolor="#ECF0FD" shape=parallelogram style=filled]
+	N11 [label="Bioreactor Operation" color="#B8C0F5" fillcolor="#ECF0FD" shape=diamond style=filled]
+	N12 [label="Gene Therapy Delivery" color="#FFF176" fillcolor="#FFFDE7" shape=document style=filled]
+	N13 [label="Bioinformatics Analysis" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+	S0 [label="" color="#A1887F" fillcolor="#EFEBE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFF176" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#B8C0F5" fillcolor="#ECF0FD" 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_Ethical Review Board Approval {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ethical Review Board Approval"
+		nest0_0 [label="Regulatory Submission" color="#FFF176" fillcolor="#FFFDE7" shape=rect style=filled]
+		nest0_1 [label="Biomarker Discovery" color="#FFF176" fillcolor="#FFFDE7" shape=box style=filled]
+	}
+	subgraph cluster_CRISPR Technology Application {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="CRISPR Technology Application"
+		nest1_0 [label="Structural Biology" color="#A1887F" fillcolor="#EFEBE9" shape=rect style=filled]
+		nest1_1 [label="Personalized Medicine Formulation" color="#FFF176" fillcolor="#FFFDE7" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#A1887F" 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="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#B8C0F5" 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="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest0_0 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N12 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest1_0 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N10 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S0 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	S1 -> N3 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#B8C0F5" penwidth=1.5 style=dashed 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_medium/diagrams_266.dot b/test/diagrams/scanned_medium/diagrams_266.dot
new file mode 100644
index 0000000000000000000000000000000000000000..201c551657a8373c838b9fd624a399bc4fd77366
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_266.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=RL
+	N0 [label="Sales and Marketing Strategy" color="#B8C0F5" fillcolor="#ECF0FD" shape=parallelogram style=filled]
+	N1 [label="Drug Stability Testing" color="#FFA726" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	N2 [label="Manufacturing Scale_up" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N3 [label="Compound Synthesis" color="#B8C0F5" fillcolor="#ECF0FD" shape=preparation style=filled]
+	N4 [label="Biostatistics" color="#5C6BC0" fillcolor="#E8EAF6" shape=predefinedprocess style=filled]
+	N5 [label="Health Economics Outcomes Research" color="#FFA726" fillcolor="#FFF3E0" shape=vnode_shape style=filled]
+	N6 [label="Batch Release" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N7 [label="Medical Writing" color="#5C6BC0" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	N8 [label="Cold Chain Logistics" color="#B8C0F5" fillcolor="#ECF0FD" shape=diamond style=filled]
+	N9 [label="Good Manufacturing Practices" color="#FFA726" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	N10 [label="Formulation Development" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N11 [label="Cleanroom Operations" color="#B8C0F5" fillcolor="#ECF0FD" shape=document style=filled]
+	N12 [label="Process Validation" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+	N13 [label="Pharmacovigilance" color="#5C6BC0" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N14 [label="Post_Approval Commitment Tracking" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N15 [label="Packaging" color="#B8C0F5" fillcolor="#ECF0FD" shape=action 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]
+	S2 [label="" color="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFA726" fillcolor="#FFF3E0" 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_Clinical Data Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Clinical Data Management"
+		nest0_0 [label="Patent Application" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+		nest0_1 [label="Injectable Drug Manufacturing" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+		nest0_2 [label="Active Pharmaceutical Ingredient Production" color="#5C6BC0" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+		nest0_3 [label="Market Access Strategy" color="#5C6BC0" fillcolor="#E8EAF6" shape=rect style=filled]
+	}
+	subgraph cluster_Global Regulatory Affairs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Global Regulatory Affairs"
+		nest1_0 [label="Counterfeit Drug Detection" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+		nest1_1 [label="Quality Control" color="#5C6BC0" fillcolor="#E8EAF6" shape=action style=filled]
+	}
+	N0 -> N1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#B8C0F5" penwidth=1.5 style=dashed label="dispenses" dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N12 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N9 [color="#5C6BC0" penwidth=1.5 style=dashed label="distributes" dir=forward]
+	nest1_0 -> nest1_1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N13 -> nest1_0 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N8 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N11 -> S0 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N15 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N10 -> S1 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#000000" penwidth=1.5 style=dashed label="advises" dir=forward]
+	S1 -> N13 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N1 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N15 [color="#000000" penwidth=1.5 style=solid label="markets" dir=forward]
+	S2 -> N12 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N3 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N5 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_267.dot b/test/diagrams/scanned_medium/diagrams_267.dot
new file mode 100644
index 0000000000000000000000000000000000000000..453629943251556c7e1f9491792990de0b0c2cf0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_267.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=TB
+	N0 [label="Human_Robot Interaction" color="#6EB76D" fillcolor="#E9F7E8" shape=parallelogram style=filled]
+	N1 [label="Maintenance" color="#C2B2F0" fillcolor="#EFE6FF" shape=vnode_shape style=filled]
+	N2 [label="System Integration" color="#FFE470" fillcolor="#FFFAE0" shape=parallelogram style=filled]
+	N3 [label="Learning Algorithms" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N4 [label="End_Effector Design" color="#C2B2F0" fillcolor="#EFE6FF" shape=document style=filled]
+	N5 [label="Grasping and Manipulation" color="#C2B2F0" fillcolor="#EFE6FF" shape=vnode_shape style=filled]
+	N6 [label="Agricultural Robotics" color="#6EB76D" fillcolor="#E9F7E8" shape=rect style=filled]
+	N7 [label="Underwater Robotics" color="#6EB76D" fillcolor="#E9F7E8" shape=parallelogram style=filled]
+	N8 [label="Medical Robotics" color="#FFE470" fillcolor="#FFFAE0" shape=rectangle style=filled]
+	N9 [label="Wireless Communication" color="#6EB76D" fillcolor="#E9F7E8" shape=multipledocuments style=filled]
+	N10 [label="Robot Assembly" color="#C2B2F0" fillcolor="#EFE6FF" shape=document style=filled]
+	N11 [label="Industrial Automation" color="#6EB76D" fillcolor="#E9F7E8" shape=multipledocuments style=filled]
+	N12 [label="Force Control" color="#C2B2F0" fillcolor="#EFE6FF" shape=hexagon style=filled]
+	S0 [label="" color="#C2B2F0" fillcolor="#EFE6FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#C2B2F0" fillcolor="#EFE6FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Swarm Robotics {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Swarm Robotics"
+		nest0_0 [label="Actuator Control" color="#FFE470" fillcolor="#FFFAE0" shape=diamond style=filled]
+		nest0_1 [label="Robot Programming" color="#C2B2F0" fillcolor="#EFE6FF" shape=inputoutput style=filled]
+		nest0_2 [label="Sensor Integration" color="#6EB76D" fillcolor="#E9F7E8" shape=action style=filled]
+	}
+	subgraph cluster_Robot Fleet Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Robot Fleet Management"
+		nest1_0 [label="Software Development" color="#C2B2F0" fillcolor="#EFE6FF" shape=rectangle style=filled]
+		nest1_1 [label="Exoskeleton Development" color="#FFE470" fillcolor="#FFFAE0" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="designs" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="transports" dir=forward]
+	N3 -> N4 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N1 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N12 [color="#FFE470" penwidth=1.5 style=dashed label="monitors" dir=forward]
+	N5 -> S0 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N0 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#FFE470" penwidth=1.5 style=dashed label="calibrates" dir=forward]
+	N2 -> M0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M1 [color="#C2B2F0" penwidth=1.5 style=solid 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_medium/diagrams_267.txt b/test/diagrams/scanned_medium/diagrams_267.txt
new file mode 100644
index 0000000000000000000000000000000000000000..315f282be0ceadc66b63e4124479d7f8e922ea7b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_267.txt
@@ -0,0 +1,28 @@
+<Actuator Control, connectedTo, Robot Programming>
+<Agricultural Robotics, connectedTo, Robot Assembly>
+<Agricultural Robotics, connectedTo, Underwater Robotics>
+<End_Effector Design, connectedTo, Force Control>
+<End_Effector Design, connectedTo, Grasping and Manipulation>
+<Exoskeleton Development, monitors, Force Control>
+<Grasping and Manipulation, connectedTo, Actuator Control>
+<Grasping and Manipulation, connectedTo, Agricultural Robotics>
+<Grasping and Manipulation, connectedTo, Underwater Robotics>
+<Grasping and Manipulation, connectedTo, Wireless Communication>
+<Human_Robot Interaction, calibrates, End_Effector Design>
+<Human_Robot Interaction, connectedTo, Force Control>
+<Human_Robot Interaction, connectedTo, Maintenance>
+<Human_Robot Interaction, connectedTo, Medical Robotics>
+<Industrial Automation, connectedTo, Force Control>
+<Learning Algorithms, connectedTo, End_Effector Design>
+<Maintenance, designs, System Integration>
+<Medical Robotics, connectedTo, Robot Assembly>
+<Medical Robotics, connectedTo, Wireless Communication>
+<Robot Assembly, connectedTo, Industrial Automation>
+<Robot Programming, connectedTo, Sensor Integration>
+<Sensor Integration, connectedTo, Maintenance>
+<Software Development, connectedTo, Exoskeleton Development>
+<System Integration, connectedTo, Force Control>
+<System Integration, transports, Learning Algorithms>
+<Underwater Robotics, connectedTo, Medical Robotics>
+<Underwater Robotics, connectedTo, Software Development>
+<Wireless Communication, connectedTo, Robot Assembly>
diff --git a/test/diagrams/scanned_medium/diagrams_268.dot b/test/diagrams/scanned_medium/diagrams_268.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1fb93367734b946488454d9ad18bd06ccbdbbcae
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_268.dot
@@ -0,0 +1,84 @@
+digraph {
+	rankdir=BT
+	N0 [label="HVAC Installation" color="#03A9F4" fillcolor="#B3E5FC" shape=parallelogram style=filled]
+	N1 [label="Site Planning" color="#03A9F4" fillcolor="#B3E5FC" shape=database style=filled]
+	N2 [label="Plumbing Work" color="#BDAFA8" fillcolor="#E4E0DF" shape=database style=filled]
+	N3 [label="Drone Surveying" color="#03A9F4" fillcolor="#B3E5FC" shape=rectangle style=filled]
+	N4 [label="Change Order Management" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N5 [label="Demolition" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N6 [label="Excavation" color="#BDAFA8" fillcolor="#E4E0DF" shape=hexagon style=filled]
+	N7 [label="Sustainable Building Design" color="#BDAFA8" fillcolor="#E4E0DF" shape=document style=filled]
+	N8 [label="Project Scheduling" color="#C0CA33" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N9 [label="Quality Assurance" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N10 [label="Post_Construction Handover" color="#03A9F4" fillcolor="#B3E5FC" shape=action style=filled]
+	N11 [label="Material Procurement" color="#C0CA33" fillcolor="#F9FBE7" shape=diamond style=filled]
+	N12 [label="Electrical Wiring" color="#03A9F4" fillcolor="#B3E5FC" shape=multipledocuments style=filled]
+	N13 [label="Facade Installation" color="#BDAFA8" fillcolor="#E4E0DF" shape=parallelogram style=filled]
+	N14 [label="Risk Assessment" color="#C0CA33" fillcolor="#F9FBE7" shape=rect style=filled]
+	N15 [label="Roofing Installation" color="#BDAFA8" fillcolor="#E4E0DF" shape=hexagon style=filled]
+	N16 [label="Blueprint Review" color="#03A9F4" fillcolor="#B3E5FC" shape=preparation style=filled]
+	N17 [label="Concrete Pouring" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	S0 [label="" color="#BDAFA8" fillcolor="#E4E0DF" 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]
+	S2 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Interior Finishing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Interior Finishing"
+		nest0_0 [label="Permit Application" color="#03A9F4" fillcolor="#B3E5FC" shape=database style=filled]
+		nest0_1 [label="Waste Management" color="#BDAFA8" fillcolor="#E4E0DF" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Robotics in Construction {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Robotics in Construction"
+		nest1_0 [label="Utility Connection" color="#03A9F4" fillcolor="#B3E5FC" shape=preparation style=filled]
+		nest1_1 [label="Tunneling" color="#C0CA33" fillcolor="#F9FBE7" shape=vnode_shape style=filled]
+		nest1_2 [label="Landscape Design" color="#BDAFA8" fillcolor="#E4E0DF" shape=database style=filled]
+		nest1_3 [label="Site Logistics" color="#03A9F4" fillcolor="#B3E5FC" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#BDAFA8" penwidth=1.5 style=dashed label="supervises" dir=forward]
+	N5 -> N6 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N15 [color="#C0CA33" penwidth=1.5 style=dashed label="permits" dir=forward]
+	nest1_0 -> nest1_1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest1_0 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N13 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S0 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S2 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N12 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N15 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> M0 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N16 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N7 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_268.txt b/test/diagrams/scanned_medium/diagrams_268.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5db32ea53d1e981a1bc0c1e9629e31be98d7c0d9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_268.txt
@@ -0,0 +1,37 @@
+<Blueprint Review, connectedTo, Concrete Pouring>
+<Change Order Management, supervises, Demolition>
+<Demolition, connectedTo, Electrical Wiring>
+<Demolition, connectedTo, Excavation>
+<Demolition, connectedTo, Post_Construction Handover>
+<Demolition, connectedTo, Roofing Installation>
+<Demolition, connectedTo, Sustainable Building Design>
+<Drone Surveying, connectedTo, Change Order Management>
+<Drone Surveying, connectedTo, Sustainable Building Design>
+<Electrical Wiring, connectedTo, Facade Installation>
+<Excavation, connectedTo, Blueprint Review>
+<Excavation, connectedTo, Sustainable Building Design>
+<Facade Installation, connectedTo, Risk Assessment>
+<HVAC Installation, connectedTo, Blueprint Review>
+<HVAC Installation, connectedTo, Site Planning>
+<Landscape Design, connectedTo, Site Logistics>
+<Material Procurement, connectedTo, Electrical Wiring>
+<Permit Application, connectedTo, Waste Management>
+<Plumbing Work, connectedTo, Drone Surveying>
+<Plumbing Work, connectedTo, Post_Construction Handover>
+<Plumbing Work, connectedTo, Sustainable Building Design>
+<Plumbing Work, connectedTo, Utility Connection>
+<Post_Construction Handover, connectedTo, Material Procurement>
+<Project Scheduling, connectedTo, Quality Assurance>
+<Quality Assurance, connectedTo, Post_Construction Handover>
+<Risk Assessment, connectedTo, Roofing Installation>
+<Roofing Installation, connectedTo, Blueprint Review>
+<Site Logistics, connectedTo, Facade Installation>
+<Site Planning, connectedTo, Plumbing Work>
+<Sustainable Building Design, connectedTo, Blueprint Review>
+<Sustainable Building Design, connectedTo, Electrical Wiring>
+<Sustainable Building Design, connectedTo, Permit Application>
+<Sustainable Building Design, connectedTo, Project Scheduling>
+<Sustainable Building Design, connectedTo, Quality Assurance>
+<Tunneling, connectedTo, Landscape Design>
+<Utility Connection, connectedTo, Tunneling>
+<Waste Management, permits, Roofing Installation>
diff --git a/test/diagrams/scanned_medium/diagrams_269.dot b/test/diagrams/scanned_medium/diagrams_269.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5f488be0dda49140406caaedbf3135ee7576055f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_269.dot
@@ -0,0 +1,76 @@
+digraph {
+	rankdir=BT
+	N0 [label="Cross_Platform Syndication" color="#7986CB" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N1 [label="Advertising Sales" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N2 [label="Social Media Management" color="#73C6BC" fillcolor="#D0EFEE" shape=action style=filled]
+	N3 [label="Analytics Reporting" color="#7986CB" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	N4 [label="Data Monetization" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	N5 [label="Subscription Management" color="#A188D0" fillcolor="#DACBE3" shape=rect style=filled]
+	N6 [label="Radio Programming" color="#A188D0" fillcolor="#DACBE3" shape=preparation style=filled]
+	N7 [label="User Generated Content Curation" color="#A188D0" fillcolor="#DACBE3" shape=predefinedprocess style=filled]
+	N8 [label="Public Relations" color="#A188D0" fillcolor="#DACBE3" shape=preparation style=filled]
+	N9 [label="Distribution" color="#A188D0" fillcolor="#DACBE3" shape=box style=filled]
+	N10 [label="Brand Partnerships" color="#73C6BC" fillcolor="#D0EFEE" shape=predefinedprocess style=filled]
+	N11 [label="Crisis Communication" color="#A188D0" fillcolor="#DACBE3" shape=diamond style=filled]
+	N12 [label="Audience Engagement" color="#73C6BC" fillcolor="#D0EFEE" shape=rectangle style=filled]
+	N13 [label="Content Licensing" color="#A188D0" fillcolor="#DACBE3" shape=action style=filled]
+	N14 [label="Platform Development" color="#73C6BC" fillcolor="#D0EFEE" shape=vnode_shape style=filled]
+	S0 [label="" color="#73C6BC" fillcolor="#D0EFEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#7986CB" fillcolor="#E8EAF6" 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]
+	M2 [label="" color="#73C6BC" fillcolor="#D0EFEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Content Creation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Content Creation"
+		nest0_0 [label="Music Recording" color="#7986CB" fillcolor="#E8EAF6" shape=rectangle style=filled]
+		nest0_1 [label="Scriptwriting" color="#7986CB" fillcolor="#E8EAF6" shape=box style=filled]
+		nest0_2 [label="Podcast Production" color="#73C6BC" fillcolor="#D0EFEE" shape=database style=filled]
+		nest0_3 [label="Journalism" color="#7986CB" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Sound Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Sound Design"
+		nest1_0 [label="Interactive Storytelling" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+		nest1_1 [label="Photojournalism" color="#A188D0" fillcolor="#DACBE3" shape=ellipse style=filled]
+		nest1_2 [label="Audience Segmentation" color="#73C6BC" fillcolor="#D0EFEE" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N2 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#A188D0" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest1_0 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N3 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	N10 -> S0 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#7986CB" penwidth=1.5 style=dashed label="edits" dir=forward]
+	S0 -> N13 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N1 -> S2 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N13 [color="#7986CB" penwidth=1.5 style=solid label="markets" dir=forward]
+	S2 -> N7 [color="#7986CB" penwidth=1.5 style=solid label="innovates" dir=forward]
+	S2 -> N4 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N7 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> M2 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N7 -> M2 [color="#A188D0" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_269.txt b/test/diagrams/scanned_medium/diagrams_269.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ad658ef2e297b119820c5e29c382551ce59eac4b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_269.txt
@@ -0,0 +1,33 @@
+<Advertising Sales, connectedTo, Data Monetization>
+<Advertising Sales, connectedTo, Social Media Management>
+<Advertising Sales, innovates, User Generated Content Curation>
+<Advertising Sales, markets, Content Licensing>
+<Analytics Reporting, connectedTo, Data Monetization>
+<Audience Engagement, connectedTo, Content Licensing>
+<Audience Engagement, connectedTo, Interactive Storytelling>
+<Audience Segmentation, connectedTo, Analytics Reporting>
+<Brand Partnerships, connectedTo, Content Licensing>
+<Brand Partnerships, connectedTo, Crisis Communication>
+<Brand Partnerships, connectedTo, Platform Development>
+<Brand Partnerships, edits, Audience Engagement>
+<Content Licensing, connectedTo, Platform Development>
+<Crisis Communication, connectedTo, Audience Engagement>
+<Crisis Communication, connectedTo, Content Licensing>
+<Cross_Platform Syndication, connectedTo, Advertising Sales>
+<Data Monetization, connectedTo, Subscription Management>
+<Distribution, connectedTo, Brand Partnerships>
+<Distribution, connectedTo, Music Recording>
+<Interactive Storytelling, connectedTo, Photojournalism>
+<Journalism, connectedTo, Social Media Management>
+<Music Recording, connectedTo, Scriptwriting>
+<Photojournalism, connectedTo, Audience Segmentation>
+<Podcast Production, connectedTo, Journalism>
+<Public Relations, connectedTo, Distribution>
+<Radio Programming, connectedTo, User Generated Content Curation>
+<Scriptwriting, connectedTo, Podcast Production>
+<Social Media Management, connectedTo, Analytics Reporting>
+<Social Media Management, connectedTo, Audience Engagement>
+<Subscription Management, connectedTo, Radio Programming>
+<User Generated Content Curation, connectedTo, Audience Engagement>
+<User Generated Content Curation, connectedTo, Content Licensing>
+<User Generated Content Curation, connectedTo, Public Relations>
diff --git a/test/diagrams/scanned_medium/diagrams_27.dot b/test/diagrams/scanned_medium/diagrams_27.dot
new file mode 100644
index 0000000000000000000000000000000000000000..30617d0ca1f161eb27db2b72591a7aa10c7f9118
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_27.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=LR
+	N0 [label="Drone Control" color="#388E3C" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+	N1 [label="Agricultural Robotics" color="#388E3C" fillcolor="#F1F8E9" shape=rectangle style=filled]
+	N2 [label="Service Robotics" color="#388E3C" fillcolor="#F1F8E9" shape=action style=filled]
+	N3 [label="Industrial Automation" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N4 [label="Safety System Implementation" color="#FFA726" fillcolor="#FFF3E0" shape=database style=filled]
+	N5 [label="Robot Programming" color="#FFA726" fillcolor="#FFF3E0" shape=database style=filled]
+	N6 [label="Robot Design" color="#00BCD4" fillcolor="#B2EBF2" shape=multipledocuments style=filled]
+	N7 [label="Robot Fleet Management" color="#388E3C" fillcolor="#F1F8E9" shape=box style=filled]
+	N8 [label="Autonomous Navigation" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+	N9 [label="Collaborative Robotics" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N0 -> N1 [color="#00BCD4" penwidth=1.5 style=solid label="tests" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#00BCD4" penwidth=1.5 style=solid label="navigates" dir=forward]
+	N4 -> N5 [color="#388E3C" penwidth=1.5 style=dashed label="builds" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#00BCD4" penwidth=1.5 style=dashed label="paints" dir=forward]
+	N7 -> N8 [color="#FFA726" penwidth=1.5 style=dashed label="avoids" dir=forward]
+	N8 -> N9 [color="#FFA726" penwidth=1.5 style=solid label="manipulates" dir=forward]
+	N9 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N3 [color="#388E3C" penwidth=1.5 style=solid label="designs" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_27.txt b/test/diagrams/scanned_medium/diagrams_27.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b178a85ab75c35cfa425a83f840c9aab91f18d12
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_27.txt
@@ -0,0 +1,11 @@
+<Agricultural Robotics, connectedTo, Service Robotics>
+<Autonomous Navigation, manipulates, Collaborative Robotics>
+<Collaborative Robotics, connectedTo, Safety System Implementation>
+<Drone Control, tests, Agricultural Robotics>
+<Industrial Automation, navigates, Safety System Implementation>
+<Robot Design, paints, Robot Fleet Management>
+<Robot Fleet Management, avoids, Autonomous Navigation>
+<Robot Fleet Management, designs, Industrial Automation>
+<Robot Programming, connectedTo, Robot Design>
+<Safety System Implementation, builds, Robot Programming>
+<Service Robotics, connectedTo, Industrial Automation>
diff --git a/test/diagrams/scanned_medium/diagrams_270.dot b/test/diagrams/scanned_medium/diagrams_270.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ce5a2e96a364592147c881b6e84ee19131e33208
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_270.dot
@@ -0,0 +1,61 @@
+digraph {
+	rankdir=RL
+	N0 [label="Baking" color="#7E57C2" fillcolor="#EDE7F6" shape=document style=filled]
+	N1 [label="Nutrition Analysis" color="#7E57C2" fillcolor="#EDE7F6" shape=preparation style=filled]
+	N2 [label="Beverage Production" color="#FBC02D" fillcolor="#FFFDE7" shape=database style=filled]
+	N3 [label="Branding and Marketing" color="#7E57C2" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	N4 [label="Cooking" color="#7E57C2" fillcolor="#EDE7F6" shape=rect style=filled]
+	N5 [label="Cuisine Innovation" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N6 [label="Quality Control" color="#FBC02D" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	N7 [label="Food Preservation" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	S0 [label="" color="#FBC02D" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FBC02D" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#7E57C2" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FBC02D" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Packaging {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Packaging"
+		nest0_0 [label="Kitchen Hygiene" color="#FBC02D" fillcolor="#FFFDE7" shape=document style=filled]
+		nest0_1 [label="Supplier Management" color="#7E57C2" fillcolor="#EDE7F6" shape=action style=filled]
+		nest0_2 [label="Storage Solutions" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Recipe Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Recipe Development"
+		nest1_0 [label="Food Preparation" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+		nest1_1 [label="Waste Reduction" color="#673AB7" fillcolor="#D1C4E9" shape=parallelogram style=filled]
+		nest1_2 [label="Product Shelf_Life Testing" color="#FBC02D" fillcolor="#FFFDE7" shape=diamond style=filled]
+		nest1_3 [label="Inventory Management" color="#FBC02D" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="freezes" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N7 [color="#FBC02D" 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="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	S2 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N4 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N4 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_271.dot b/test/diagrams/scanned_medium/diagrams_271.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3e1eef015145fd5ee8165233705d02f05fd9163e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_271.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=LR
+	N0 [label="Anti_Doping Control" color="#DCE775" fillcolor="#FCFCE7" shape=box style=filled]
+	N1 [label="Ticketing Sales" color="#4DD0E1" fillcolor="#C9F0F0" shape=preparation style=filled]
+	N2 [label="Player Recruitment" color="#DCE775" fillcolor="#FCFCE7" shape=preparation style=filled]
+	N3 [label="Training Session" color="#4DD0E1" fillcolor="#C9F0F0" shape=inputoutput style=filled]
+	N4 [label="Data Analytics in Sports" color="#DCE775" fillcolor="#FCFCE7" shape=action style=filled]
+	N5 [label="Esports Event Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=vnode_shape style=filled]
+	N6 [label="Event Broadcasting" color="#4DD0E1" fillcolor="#C9F0F0" shape=inputoutput style=filled]
+	N7 [label="Athlete Nutrition Planning" color="#DCE775" fillcolor="#FCFCE7" shape=database style=filled]
+	N8 [label="Match Play" color="#4DD0E1" fillcolor="#C9F0F0" shape=preparation style=filled]
+	N9 [label="League Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=diamond style=filled]
+	N10 [label="Athlete Brand Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=box style=filled]
+	N11 [label="Accessibility in Sports Venues" color="#4DD0E1" fillcolor="#C9F0F0" shape=rect style=filled]
+	N12 [label="Fan Club Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=database style=filled]
+	N13 [label="Athlete Performance Tracking" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+	N14 [label="Fan Experience Enhancement" color="#DCE775" fillcolor="#FCFCE7" shape=rectangle style=filled]
+	N15 [label="Sports Psychology" color="#4DD0E1" fillcolor="#C9F0F0" shape=rect style=filled]
+	N16 [label="Sports Betting Regulation" color="#DCE775" fillcolor="#FCFCE7" shape=rectangle style=filled]
+	N17 [label="Sponsorship Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=rectangle style=filled]
+	S0 [label="" color="#DCE775" fillcolor="#FCFCE7" 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]
+	M1 [label="" color="#E0E0E0" fillcolor="#EBEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Injury Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Injury Management"
+		nest0_0 [label="Refereeing" color="#4DD0E1" fillcolor="#C9F0F0" shape=vnode_shape style=filled]
+		nest0_1 [label="Team Management" color="#DCE775" fillcolor="#FCFCE7" shape=action style=filled]
+		nest0_2 [label="Sports Analytics" color="#E0E0E0" fillcolor="#EBEBEB" shape=document style=filled]
+		nest0_3 [label="Scorekeeping" color="#4DD0E1" fillcolor="#C9F0F0" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Game Strategy {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Game Strategy"
+		nest1_0 [label="Tournament Organization" color="#DCE775" fillcolor="#FCFCE7" shape=ellipse style=filled]
+		nest1_1 [label="Media Rights Negotiation" color="#E0E0E0" fillcolor="#EBEBEB" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#E0E0E0" 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=dashed dir=forward]
+	N4 -> N5 [color="#DCE775" penwidth=1.5 style=dashed label="tracks" 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="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#DCE775" penwidth=1.5 style=dashed 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=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N15 -> nest0_0 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest1_0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N12 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N16 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> M0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#DCE775" penwidth=1.5 style=solid label="medicates" dir=forward]
+	M0 -> N9 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N13 -> M1 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M1 [color="#E0E0E0" penwidth=1.5 style=solid label="builds" dir=forward]
+	M1 -> N17 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N14 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_271.txt b/test/diagrams/scanned_medium/diagrams_271.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f827690b8248519e872091ad4d8b24b53d94626b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_271.txt
@@ -0,0 +1,34 @@
+<Accessibility in Sports Venues, connectedTo, Fan Club Management>
+<Anti_Doping Control, connectedTo, Ticketing Sales>
+<Athlete Brand Management, connectedTo, Accessibility in Sports Venues>
+<Athlete Nutrition Planning, connectedTo, League Management>
+<Athlete Nutrition Planning, connectedTo, Match Play>
+<Athlete Performance Tracking, connectedTo, Fan Experience Enhancement>
+<Athlete Performance Tracking, connectedTo, Sponsorship Management>
+<Data Analytics in Sports, connectedTo, Sponsorship Management>
+<Data Analytics in Sports, tracks, Esports Event Management>
+<Esports Event Management, connectedTo, Event Broadcasting>
+<Event Broadcasting, connectedTo, Athlete Nutrition Planning>
+<Fan Club Management, connectedTo, Athlete Performance Tracking>
+<Fan Club Management, connectedTo, Fan Experience Enhancement>
+<Fan Club Management, connectedTo, Sports Betting Regulation>
+<Fan Experience Enhancement, connectedTo, Sports Psychology>
+<League Management, connectedTo, Athlete Brand Management>
+<Match Play, builds, Sponsorship Management>
+<Match Play, connectedTo, League Management>
+<Match Play, connectedTo, Tournament Organization>
+<Media Rights Negotiation, connectedTo, Fan Club Management>
+<Media Rights Negotiation, connectedTo, Fan Experience Enhancement>
+<Player Recruitment, connectedTo, League Management>
+<Player Recruitment, connectedTo, Training Session>
+<Refereeing, connectedTo, Team Management>
+<Scorekeeping, connectedTo, Training Session>
+<Sports Analytics, connectedTo, Scorekeeping>
+<Sports Betting Regulation, connectedTo, Sponsorship Management>
+<Sports Psychology, connectedTo, Refereeing>
+<Sports Psychology, connectedTo, Sports Betting Regulation>
+<Team Management, connectedTo, Sports Analytics>
+<Ticketing Sales, connectedTo, Player Recruitment>
+<Tournament Organization, connectedTo, Media Rights Negotiation>
+<Training Session, connectedTo, Data Analytics in Sports>
+<Training Session, medicates, League Management>
diff --git a/test/diagrams/scanned_medium/diagrams_272.dot b/test/diagrams/scanned_medium/diagrams_272.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bc912bb5815f0e72cf3eccbb4c62841cae200572
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_272.dot
@@ -0,0 +1,80 @@
+digraph {
+	rankdir=RL
+	N0 [label="Customer Feedback Analysis" color="#CB9BE1" fillcolor="#F2E6F5" shape=diamond style=filled]
+	N1 [label="Fabric Innovation" color="#CB9BE1" fillcolor="#F2E6F5" shape=database style=filled]
+	N2 [label="Quality Check" color="#CB9BE1" fillcolor="#F2E6F5" shape=ellipse style=filled]
+	N3 [label="Marketing Campaign" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N4 [label="Intellectual Property Protection" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+	N5 [label="Return Processing" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+	N6 [label="Customer Loyalty Programs" color="#CB9BE1" fillcolor="#F2E6F5" shape=hexagon style=filled]
+	N7 [label="Influencer Collaboration" color="#CB9BE1" fillcolor="#F2E6F5" shape=hexagon style=filled]
+	N8 [label="Haute Couture Creation" color="#AB47BC" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	N9 [label="Retail Sales" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N10 [label="Textile Manufacturing" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N11 [label="Inventory Management" color="#FF5722" fillcolor="#FFCCBC" shape=vnode_shape style=filled]
+	N12 [label="Brand Building" color="#CB9BE1" fillcolor="#F2E6F5" shape=parallelogram style=filled]
+	N13 [label="Retail Store Merchandising" color="#CB9BE1" fillcolor="#F2E6F5" shape=predefinedprocess style=filled]
+	S0 [label="" color="#CB9BE1" fillcolor="#F2E6F5" 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="#CB9BE1" fillcolor="#F2E6F5" 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="#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_Garment Fitting Session {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Garment Fitting Session"
+		nest0_0 [label="Wholesale Distribution" color="#FF5722" fillcolor="#FFCCBC" shape=preparation style=filled]
+		nest0_1 [label="Trend Research" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	}
+	subgraph cluster_Custom Apparel Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Custom Apparel Design"
+		nest1_0 [label="Accessory Design" color="#AB47BC" fillcolor="#F3E5F5" shape=parallelogram style=filled]
+		nest1_1 [label="Material Sourcing" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+		nest1_2 [label="Product Photography" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+		nest1_3 [label="Color Palette Selection" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram 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="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#AB47BC" penwidth=1.5 style=dashed label="promotes" dir=forward]
+	N9 -> N10 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N11 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N13 [color="#CB9BE1" 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="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S1 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N2 [color="#AB47BC" penwidth=1.5 style=solid label="advises" dir=forward]
+	S2 -> N12 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N13 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N9 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	M2 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_272.txt b/test/diagrams/scanned_medium/diagrams_272.txt
new file mode 100644
index 0000000000000000000000000000000000000000..369cdb1033037a78b031f9f5e965e2df4ac534a3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_272.txt
@@ -0,0 +1,34 @@
+<Accessory Design, connectedTo, Material Sourcing>
+<Brand Building, connectedTo, Retail Store Merchandising>
+<Color Palette Selection, connectedTo, Textile Manufacturing>
+<Customer Feedback Analysis, advises, Quality Check>
+<Customer Feedback Analysis, connectedTo, Brand Building>
+<Customer Feedback Analysis, connectedTo, Fabric Innovation>
+<Customer Feedback Analysis, connectedTo, Retail Store Merchandising>
+<Customer Loyalty Programs, connectedTo, Influencer Collaboration>
+<Fabric Innovation, connectedTo, Accessory Design>
+<Fabric Innovation, connectedTo, Quality Check>
+<Fabric Innovation, connectedTo, Retail Sales>
+<Fabric Innovation, connectedTo, Return Processing>
+<Haute Couture Creation, promotes, Retail Sales>
+<Influencer Collaboration, connectedTo, Haute Couture Creation>
+<Intellectual Property Protection, connectedTo, Retail Sales>
+<Intellectual Property Protection, connectedTo, Return Processing>
+<Inventory Management, connectedTo, Brand Building>
+<Inventory Management, connectedTo, Wholesale Distribution>
+<Marketing Campaign, connectedTo, Brand Building>
+<Marketing Campaign, connectedTo, Influencer Collaboration>
+<Marketing Campaign, connectedTo, Intellectual Property Protection>
+<Marketing Campaign, connectedTo, Return Processing>
+<Material Sourcing, connectedTo, Product Photography>
+<Product Photography, connectedTo, Color Palette Selection>
+<Quality Check, connectedTo, Haute Couture Creation>
+<Quality Check, connectedTo, Inventory Management>
+<Quality Check, connectedTo, Marketing Campaign>
+<Quality Check, connectedTo, Retail Sales>
+<Quality Check, connectedTo, Return Processing>
+<Retail Sales, connectedTo, Textile Manufacturing>
+<Return Processing, connectedTo, Customer Loyalty Programs>
+<Textile Manufacturing, connectedTo, Inventory Management>
+<Trend Research, connectedTo, Retail Store Merchandising>
+<Wholesale Distribution, connectedTo, Trend Research>
diff --git a/test/diagrams/scanned_medium/diagrams_273.dot b/test/diagrams/scanned_medium/diagrams_273.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ea413e014a010194eb22c75730293fb88b092b4a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_273.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=RL
+	N0 [label="Leadership Training" color="#E0E0E0" fillcolor="#EBEBEB" shape=preparation style=filled]
+	N1 [label="Onboarding Process" color="#E0E0E0" fillcolor="#EBEBEB" shape=rectangle style=filled]
+	N2 [label="HR Budgeting" color="#E0E0E0" fillcolor="#EBEBEB" shape=predefinedprocess style=filled]
+	N3 [label="Organizational Development" color="#E0E0E0" fillcolor="#EBEBEB" shape=vnode_shape style=filled]
+	N4 [label="Workforce Planning" color="#61CAC3" fillcolor="#C2E8E6" shape=rectangle style=filled]
+	N5 [label="Performance Appraisal" color="#E0E0E0" fillcolor="#EBEBEB" shape=database style=filled]
+	N6 [label="Team Building Activities" color="#61CAC3" fillcolor="#C2E8E6" shape=predefinedprocess style=filled]
+	N7 [label="Talent Management" color="#61CAC3" fillcolor="#C2E8E6" shape=vnode_shape style=filled]
+	N8 [label="Change Management" color="#61CAC3" fillcolor="#C2E8E6" shape=multipledocuments style=filled]
+	N9 [label="HR Information System Implementation" color="#61CAC3" fillcolor="#C2E8E6" shape=document style=filled]
+	N10 [label="Global Mobility Programs" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+	N11 [label="Health and Safety Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=rect style=filled]
+	N12 [label="Offer Management" color="#4DB6AC" fillcolor="#E0F2F1" shape=action style=filled]
+	N13 [label="Employee Engagement Surveys" color="#61CAC3" fillcolor="#C2E8E6" shape=hexagon style=filled]
+	N14 [label="Conflict Resolution" color="#E0E0E0" fillcolor="#EBEBEB" shape=document style=filled]
+	N15 [label="Exit Interviews" color="#E0E0E0" fillcolor="#EBEBEB" shape=rectangle style=filled]
+	N16 [label="Diversity and Inclusion Initiatives" color="#E0E0E0" fillcolor="#EBEBEB" shape=database style=filled]
+	N17 [label="HR Analytics" color="#E0E0E0" fillcolor="#EBEBEB" shape=document style=filled]
+	N18 [label="HR Policy Development" color="#E0E0E0" fillcolor="#EBEBEB" shape=hexagon style=filled]
+	N19 [label="Skill Development Programs" color="#4DB6AC" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	S0 [label="" color="#E0E0E0" fillcolor="#EBEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#E0E0E0" fillcolor="#EBEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#E0E0E0" fillcolor="#EBEBEB" 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]
+	subgraph cluster_Union Negotiations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Union Negotiations"
+		nest0_0 [label="Candidate Sourcing" color="#4DB6AC" fillcolor="#E0F2F1" shape=preparation style=filled]
+		nest0_1 [label="Work_Life Balance Initiatives" color="#E0E0E0" fillcolor="#EBEBEB" shape=diamond style=filled]
+	}
+	subgraph cluster_Disciplinary Procedures {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Disciplinary Procedures"
+		nest1_0 [label="Leave Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=rectangle style=filled]
+		nest1_1 [label="Employee Training" color="#61CAC3" fillcolor="#C2E8E6" shape=parallelogram style=filled]
+		nest1_2 [label="Remote Work Policy" color="#E0E0E0" fillcolor="#EBEBEB" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#E0E0E0" 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N17 -> N18 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N18 -> N19 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N15 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N1 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest1_0 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N14 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N8 -> S0 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N17 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N16 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#61CAC3" penwidth=1.5 style=solid label="secures" dir=forward]
+	S1 -> N6 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N4 -> S2 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_274.dot b/test/diagrams/scanned_medium/diagrams_274.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1f8d0f8d2f8f0e50814528769aedc10ec48060d9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_274.dot
@@ -0,0 +1,60 @@
+digraph {
+	rankdir=TB
+	N0 [label="Applicant Tracking System Management" color="#64B5F6" fillcolor="#E3F2FD" shape=diamond style=filled]
+	N1 [label="Global Recruitment Strategy" color="#FFC085" fillcolor="#FFDAB9" shape=hexagon style=filled]
+	N2 [label="Onboarding Handoff" color="#64B5F6" fillcolor="#E3F2FD" shape=rect style=filled]
+	N3 [label="Video Interviewing" color="#64B5F6" fillcolor="#E3F2FD" shape=box style=filled]
+	N4 [label="Passive Candidate Engagement" color="#64B5F6" fillcolor="#E3F2FD" shape=rect style=filled]
+	N5 [label="Recruitment Marketing" color="#64B5F6" fillcolor="#E3F2FD" shape=diamond style=filled]
+	N6 [label="Competency_Based Interviewing" color="#64B5F6" fillcolor="#E3F2FD" shape=rect style=filled]
+	N7 [label="Campus Recruitment" color="#FFC085" fillcolor="#FFDAB9" shape=diamond style=filled]
+	N8 [label="Job Fair Organization" color="#FFC085" fillcolor="#FFDAB9" shape=database style=filled]
+	N9 [label="Candidate Relationship Management" color="#64B5F6" fillcolor="#E3F2FD" shape=database style=filled]
+	N10 [label="Candidate Feedback Collection" color="#FFC085" fillcolor="#FFDAB9" shape=predefinedprocess style=filled]
+	S0 [label="" color="#64B5F6" fillcolor="#E3F2FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#64B5F6" fillcolor="#E3F2FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Interview Panel Coordination {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Interview Panel Coordination"
+		nest0_0 [label="AI in Recruitment" color="#673AB7" fillcolor="#D1C4E9" shape=rectangle style=filled]
+		nest0_1 [label="Contingent Workforce Management" color="#673AB7" fillcolor="#D1C4E9" shape=database style=filled]
+		nest0_2 [label="Recruitment Analytics" color="#64B5F6" fillcolor="#E3F2FD" shape=document style=filled]
+	}
+	subgraph cluster_Recruiter Training {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Recruiter Training"
+		nest1_0 [label="Candidate Assessment Design" color="#673AB7" fillcolor="#D1C4E9" shape=box style=filled]
+		nest1_1 [label="Negotiation" color="#64B5F6" fillcolor="#E3F2FD" shape=vnode_shape style=filled]
+		nest1_2 [label="Executive Search" color="#64B5F6" fillcolor="#E3F2FD" shape=preparation style=filled]
+		nest1_3 [label="Recruitment Process Outsourcing Management" color="#673AB7" fillcolor="#D1C4E9" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#673AB7" 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=dashed dir=forward]
+	N3 -> N4 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFC085" 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=solid dir=forward]
+	N7 -> N8 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#64B5F6" 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="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N5 [color="#000000" penwidth=1.5 style=dashed 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="#000000" penwidth=1.5 style=dashed label="offers" dir=forward]
+	N2 -> nest1_0 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N7 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N5 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#FFC085" penwidth=1.5 style=dashed label="screens" dir=forward]
+	S0 -> N7 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N2 -> S1 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_274.txt b/test/diagrams/scanned_medium/diagrams_274.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9113b965f9fdf1797dec9e3bae1a7ccb7ac1d76c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_274.txt
@@ -0,0 +1,25 @@
+<AI in Recruitment, connectedTo, Contingent Workforce Management>
+<Applicant Tracking System Management, connectedTo, Global Recruitment Strategy>
+<Campus Recruitment, connectedTo, Job Fair Organization>
+<Candidate Assessment Design, connectedTo, Negotiation>
+<Candidate Relationship Management, connectedTo, AI in Recruitment>
+<Candidate Relationship Management, connectedTo, Candidate Feedback Collection>
+<Competency_Based Interviewing, connectedTo, Campus Recruitment>
+<Contingent Workforce Management, connectedTo, Recruitment Analytics>
+<Executive Search, offers, Recruitment Process Outsourcing Management>
+<Global Recruitment Strategy, connectedTo, Onboarding Handoff>
+<Job Fair Organization, connectedTo, Candidate Relationship Management>
+<Negotiation, connectedTo, Executive Search>
+<Onboarding Handoff, connectedTo, Candidate Assessment Design>
+<Onboarding Handoff, connectedTo, Candidate Feedback Collection>
+<Onboarding Handoff, connectedTo, Competency_Based Interviewing>
+<Onboarding Handoff, connectedTo, Passive Candidate Engagement>
+<Onboarding Handoff, connectedTo, Video Interviewing>
+<Passive Candidate Engagement, connectedTo, Recruitment Marketing>
+<Recruitment Analytics, connectedTo, Recruitment Marketing>
+<Recruitment Marketing, connectedTo, Campus Recruitment>
+<Recruitment Marketing, connectedTo, Competency_Based Interviewing>
+<Recruitment Marketing, connectedTo, Job Fair Organization>
+<Recruitment Marketing, screens, Candidate Feedback Collection>
+<Recruitment Process Outsourcing Management, connectedTo, Campus Recruitment>
+<Video Interviewing, connectedTo, Passive Candidate Engagement>
diff --git a/test/diagrams/scanned_medium/diagrams_275.txt b/test/diagrams/scanned_medium/diagrams_275.txt
new file mode 100644
index 0000000000000000000000000000000000000000..10103d0e1f3609a3e6e63c009438007c79a911cd
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_275.txt
@@ -0,0 +1,27 @@
+<Call Center Management, connectedTo, Virtual Assistant Interaction>
+<Email Support, connectedTo, FAQ Management>
+<Email Support, connectedTo, Refund Processing>
+<Email Support, resolves, Feedback Collection>
+<FAQ Management, connectedTo, Feedback Collection>
+<Feedback Collection, connectedTo, Customer Success Management>
+<Feedback Collection, connectedTo, Issue Escalation>
+<Feedback Collection, connectedTo, Live Chat Support>
+<Feedback Collection, connectedTo, Virtual Assistant Interaction>
+<Feedback Collection, exchanges, Training Customer Service Agents>
+<Feedback Loop to Product Development, connectedTo, Feedback Collection>
+<Feedback Loop to Product Development, connectedTo, Refund Processing>
+<Feedback Loop to Product Development, empathizes, Email Support>
+<Issue Escalation, connectedTo, Sentiment Analysis>
+<Issue Escalation, listens, Refund Processing>
+<Knowledge Base Creation, connectedTo, Refund Processing>
+<Knowledge Base Creation, connectedTo, Virtual Assistant Interaction>
+<Live Chat Support, connectedTo, Knowledge Base Creation>
+<Refund Processing, connectedTo, Customer Success Management>
+<Self_Service Portal Management, connectedTo, Call Center Management>
+<Sentiment Analysis, connectedTo, Service Blueprinting>
+<Service Blueprinting, connectedTo, Knowledge Base Creation>
+<Training Customer Service Agents, connectedTo, Up_selling Opportunities>
+<Up_selling Opportunities, connectedTo, Self_Service Portal Management>
+<Virtual Assistant Interaction, connectedTo, Customer Success Management>
+<Virtual Assistant Interaction, connectedTo, Issue Escalation>
+<Virtual Assistant Interaction, connectedTo, Refund Processing>
diff --git a/test/diagrams/scanned_medium/diagrams_276.dot b/test/diagrams/scanned_medium/diagrams_276.dot
new file mode 100644
index 0000000000000000000000000000000000000000..111a78e03a83ff745d76ffc434a7a9b37c12101d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_276.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=RL
+	N0 [label="Vendor Managed Inventory" color="#BDAFA8" fillcolor="#E4E0DF" shape=predefinedprocess style=filled]
+	N1 [label="Procurement" color="#9FA9E1" fillcolor="#D6D9F0" shape=preparation style=filled]
+	N2 [label="Global Sourcing Strategy" color="#66BB6A" fillcolor="#E8F5E9" shape=database style=filled]
+	N3 [label="Supplier Selection" color="#BDAFA8" fillcolor="#E4E0DF" shape=rectangle style=filled]
+	N4 [label="Risk Management" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+	N5 [label="Blockchain for Traceability" color="#BDAFA8" fillcolor="#E4E0DF" shape=hexagon style=filled]
+	N6 [label="Quality Control in Supply Chain" color="#66BB6A" fillcolor="#E8F5E9" shape=hexagon style=filled]
+	N7 [label="Data Analytics for Supply Chain" color="#BDAFA8" fillcolor="#E4E0DF" shape=rect style=filled]
+	N8 [label="Third_Party Logistics Management" color="#9FA9E1" fillcolor="#D6D9F0" shape=action style=filled]
+	N9 [label="Production Planning" color="#BDAFA8" fillcolor="#E4E0DF" shape=vnode_shape style=filled]
+	N10 [label="Hazardous Materials Handling" color="#BDAFA8" fillcolor="#E4E0DF" shape=inputoutput style=filled]
+	N11 [label="Customs Compliance" color="#66BB6A" fillcolor="#E8F5E9" shape=document style=filled]
+	N12 [label="Warehousing" color="#9FA9E1" fillcolor="#D6D9F0" shape=document style=filled]
+	S0 [label="" color="#9FA9E1" fillcolor="#D6D9F0" 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]
+	S2 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Risk Mitigation Strategies {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Risk Mitigation Strategies"
+		nest0_0 [label="Warehouse Automation" color="#66BB6A" fillcolor="#E8F5E9" shape=inputoutput style=filled]
+		nest0_1 [label="Performance Monitoring" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+		nest0_2 [label="Inventory Management" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+		nest0_3 [label="Container Tracking" color="#9FA9E1" fillcolor="#D6D9F0" shape=diamond style=filled]
+	}
+	subgraph cluster_Demand Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Demand Planning"
+		nest1_0 [label="Order Fulfillment" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+		nest1_1 [label="Material Flow Management" color="#BDAFA8" fillcolor="#E4E0DF" shape=parallelogram style=filled]
+		nest1_2 [label="Predictive Analytics" color="#9FA9E1" fillcolor="#D6D9F0" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#9FA9E1" penwidth=1.5 style=dashed label="forecasts" dir=forward]
+	N1 -> N2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#9FA9E1" penwidth=1.5 style=solid label="tracks" dir=forward]
+	N8 -> N9 [color="#9FA9E1" penwidth=1.5 style=dashed label="implements" dir=forward]
+	N9 -> N10 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N4 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_276.txt b/test/diagrams/scanned_medium/diagrams_276.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7b5e4a1b41e652644d35e1cd6d3a4e6d8b061e76
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_276.txt
@@ -0,0 +1,29 @@
+<Blockchain for Traceability, connectedTo, Quality Control in Supply Chain>
+<Container Tracking, connectedTo, Data Analytics for Supply Chain>
+<Customs Compliance, connectedTo, Warehousing>
+<Data Analytics for Supply Chain, connectedTo, Order Fulfillment>
+<Data Analytics for Supply Chain, tracks, Third_Party Logistics Management>
+<Global Sourcing Strategy, connectedTo, Blockchain for Traceability>
+<Global Sourcing Strategy, connectedTo, Production Planning>
+<Global Sourcing Strategy, connectedTo, Quality Control in Supply Chain>
+<Global Sourcing Strategy, connectedTo, Supplier Selection>
+<Hazardous Materials Handling, connectedTo, Customs Compliance>
+<Inventory Management, connectedTo, Container Tracking>
+<Material Flow Management, connectedTo, Predictive Analytics>
+<Order Fulfillment, connectedTo, Material Flow Management>
+<Performance Monitoring, connectedTo, Inventory Management>
+<Predictive Analytics, connectedTo, Procurement>
+<Procurement, connectedTo, Blockchain for Traceability>
+<Procurement, connectedTo, Global Sourcing Strategy>
+<Procurement, connectedTo, Hazardous Materials Handling>
+<Procurement, connectedTo, Production Planning>
+<Production Planning, connectedTo, Hazardous Materials Handling>
+<Quality Control in Supply Chain, connectedTo, Data Analytics for Supply Chain>
+<Risk Management, connectedTo, Blockchain for Traceability>
+<Risk Management, connectedTo, Data Analytics for Supply Chain>
+<Risk Management, connectedTo, Hazardous Materials Handling>
+<Supplier Selection, connectedTo, Risk Management>
+<Supplier Selection, connectedTo, Warehouse Automation>
+<Third_Party Logistics Management, implements, Production Planning>
+<Vendor Managed Inventory, forecasts, Procurement>
+<Warehouse Automation, connectedTo, Performance Monitoring>
diff --git a/test/diagrams/scanned_medium/diagrams_277.dot b/test/diagrams/scanned_medium/diagrams_277.dot
new file mode 100644
index 0000000000000000000000000000000000000000..63323c1e7f3919d8e3e53ead77d888824e0fbbef
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_277.dot
@@ -0,0 +1,85 @@
+digraph {
+	rankdir=LR
+	N0 [label="Exploration" color="#FFEB3B" fillcolor="#FFF9C4" shape=parallelogram style=filled]
+	N1 [label="Robotics in Mining" color="#00BCD4" fillcolor="#B2EBF2" shape=box style=filled]
+	N2 [label="Water Management" color="#00BCD4" fillcolor="#B2EBF2" shape=rect style=filled]
+	N3 [label="Geological Survey" color="#00BCD4" fillcolor="#B2EBF2" shape=document style=filled]
+	N4 [label="Regulatory Compliance Reporting" color="#E57373" fillcolor="#FFEBEE" shape=inputoutput style=filled]
+	N5 [label="Ore Extraction" color="#00BCD4" fillcolor="#B2EBF2" shape=ellipse style=filled]
+	N6 [label="Permit Acquisition" color="#FFEB3B" fillcolor="#FFF9C4" shape=diamond style=filled]
+	N7 [label="Dust Control" color="#FFEB3B" fillcolor="#FFF9C4" shape=rectangle style=filled]
+	N8 [label="Mine Dewatering" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+	N9 [label="Reclamation" color="#E57373" fillcolor="#FFEBEE" shape=database style=filled]
+	N10 [label="Exploration Drilling" color="#00BCD4" fillcolor="#B2EBF2" shape=rect style=filled]
+	N11 [label="Crushing and Grinding" color="#FFEB3B" fillcolor="#FFF9C4" shape=database style=filled]
+	N12 [label="Ventilation System" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	N13 [label="Mineral Processing" color="#00BCD4" fillcolor="#B2EBF2" shape=diamond style=filled]
+	S0 [label="" color="#E57373" fillcolor="#FFEBEE" 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="#00BCD4" fillcolor="#B2EBF2" 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="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#00BCD4" fillcolor="#B2EBF2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Mine Closure Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mine Closure Planning"
+		nest0_0 [label="Environmental Impact Assessment" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+		nest0_1 [label="Safety Management" color="#E57373" fillcolor="#FFEBEE" shape=document style=filled]
+		nest0_2 [label="Tailings Management" color="#FFEB3B" fillcolor="#FFF9C4" shape=inputoutput style=filled]
+		nest0_3 [label="Asset Management" color="#00BCD4" fillcolor="#B2EBF2" shape=diamond style=filled]
+	}
+	subgraph cluster_Resource Estimation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Resource Estimation"
+		nest1_0 [label="Noise Management" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+		nest1_1 [label="Haulage" color="#E57373" fillcolor="#FFEBEE" shape=ellipse style=filled]
+		nest1_2 [label="Drilling and Blasting" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#00BCD4" penwidth=1.5 style=solid 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="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFEB3B" 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="safety" dir=forward]
+	N9 -> N10 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFEB3B" 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#FFEB3B" penwidth=1.5 style=dashed label="repairs" dir=forward]
+	nest0_3 -> N1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#00BCD4" penwidth=1.5 style=dashed label="prices" dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed label="markets" dir=forward]
+	nest1_2 -> N6 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N9 -> S1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N10 -> S2 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S2 -> N12 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#E57373" penwidth=1.5 style=solid label="grades" dir=forward]
+	N4 -> M0 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N6 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	M2 -> N5 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_277.txt b/test/diagrams/scanned_medium/diagrams_277.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c39d6c8424d7b5d527c9f108fc84dac675e154df
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_277.txt
@@ -0,0 +1,39 @@
+<Asset Management, connectedTo, Robotics in Mining>
+<Crushing and Grinding, connectedTo, Ventilation System>
+<Drilling and Blasting, connectedTo, Permit Acquisition>
+<Dust Control, connectedTo, Mine Dewatering>
+<Dust Control, markets, Noise Management>
+<Environmental Impact Assessment, connectedTo, Safety Management>
+<Exploration, connectedTo, Ore Extraction>
+<Exploration, connectedTo, Permit Acquisition>
+<Exploration, connectedTo, Robotics in Mining>
+<Exploration Drilling, connectedTo, Crushing and Grinding>
+<Exploration Drilling, connectedTo, Ventilation System>
+<Exploration Drilling, grades, Mineral Processing>
+<Geological Survey, connectedTo, Ore Extraction>
+<Geological Survey, connectedTo, Permit Acquisition>
+<Geological Survey, connectedTo, Regulatory Compliance Reporting>
+<Haulage, connectedTo, Drilling and Blasting>
+<Mine Dewatering, safety, Reclamation>
+<Noise Management, prices, Haulage>
+<Ore Extraction, connectedTo, Permit Acquisition>
+<Ore Extraction, repairs, Environmental Impact Assessment>
+<Permit Acquisition, connectedTo, Dust Control>
+<Reclamation, connectedTo, Crushing and Grinding>
+<Reclamation, connectedTo, Exploration Drilling>
+<Reclamation, connectedTo, Mineral Processing>
+<Reclamation, connectedTo, Ventilation System>
+<Regulatory Compliance Reporting, connectedTo, Ore Extraction>
+<Regulatory Compliance Reporting, connectedTo, Permit Acquisition>
+<Regulatory Compliance Reporting, connectedTo, Reclamation>
+<Robotics in Mining, connectedTo, Geological Survey>
+<Robotics in Mining, connectedTo, Ore Extraction>
+<Robotics in Mining, connectedTo, Permit Acquisition>
+<Robotics in Mining, connectedTo, Reclamation>
+<Robotics in Mining, connectedTo, Water Management>
+<Safety Management, connectedTo, Tailings Management>
+<Tailings Management, connectedTo, Asset Management>
+<Ventilation System, connectedTo, Mineral Processing>
+<Water Management, connectedTo, Geological Survey>
+<Water Management, connectedTo, Ore Extraction>
+<Water Management, connectedTo, Reclamation>
diff --git a/test/diagrams/scanned_medium/diagrams_278.dot b/test/diagrams/scanned_medium/diagrams_278.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5ead3067d73530c8be346c0adb95069616c5daff
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_278.dot
@@ -0,0 +1,84 @@
+digraph {
+	rankdir=RL
+	N0 [label="Ship Design" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+	N1 [label="Hydrographic Surveying" color="#E91E63" fillcolor="#F8BBD0" shape=preparation style=filled]
+	N2 [label="Fuel Consumption Optimization" color="#4FC3F7" fillcolor="#E1F5FE" shape=hexagon style=filled]
+	N3 [label="Customs Clearance" color="#CB9BE1" fillcolor="#F2E6F5" shape=diamond style=filled]
+	N4 [label="Marine Data Analytics" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+	N5 [label="Fleet Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+	N6 [label="Route Planning" color="#4FC3F7" fillcolor="#E1F5FE" shape=rectangle style=filled]
+	N7 [label="Marine Insurance" color="#CB9BE1" fillcolor="#F2E6F5" shape=predefinedprocess style=filled]
+	N8 [label="Inland Waterway Transport" color="#E91E63" fillcolor="#F8BBD0" shape=database style=filled]
+	N9 [label="Salvage Operations" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+	N10 [label="Subsea Cable Laying" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	N11 [label="Navigation" color="#4FC3F7" fillcolor="#E1F5FE" shape=document style=filled]
+	N12 [label="Pilotage" color="#E91E63" fillcolor="#F8BBD0" shape=preparation style=filled]
+	N13 [label="Ballast Water Management" color="#4FC3F7" fillcolor="#E1F5FE" shape=database style=filled]
+	N14 [label="Vessel Maintenance" color="#CB9BE1" fillcolor="#F2E6F5" shape=parallelogram style=filled]
+	N15 [label="Port Operations" color="#4FC3F7" fillcolor="#E1F5FE" shape=document style=filled]
+	S0 [label="" color="#4FC3F7" fillcolor="#E1F5FE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#4FC3F7" fillcolor="#E1F5FE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#4FC3F7" fillcolor="#E1F5FE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Crew Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Crew Management"
+		nest0_0 [label="Ship Registry" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+		nest0_1 [label="Bunkering" color="#E91E63" fillcolor="#F8BBD0" shape=rectangle style=filled]
+		nest0_2 [label="Digitalization of Shipping" color="#E91E63" fillcolor="#F8BBD0" shape=predefinedprocess style=filled]
+		nest0_3 [label="Maritime Law Compliance" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+	}
+	subgraph cluster_Terminal Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Terminal Management"
+		nest1_0 [label="Voyage Optimization" color="#CB9BE1" fillcolor="#F2E6F5" shape=rect style=filled]
+		nest1_1 [label="Cargo Loading" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+	}
+	N0 -> N1 [color="#CB9BE1" penwidth=1.5 style=solid label="operates" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#E91E63" penwidth=1.5 style=solid label="audits" dir=forward]
+	N3 -> N4 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="manages" dir=forward]
+	N8 -> N9 [color="#E91E63" penwidth=1.5 style=dashed 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#E91E63" 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="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_0 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N4 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#E91E63" penwidth=1.5 style=solid label="fuels" dir=forward]
+	nest1_1 -> N3 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N10 -> S0 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#000000" penwidth=1.5 style=solid label="navigates" dir=forward]
+	S0 -> N13 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N10 -> S1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N1 -> S2 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	S2 -> N9 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	S2 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=dashed label="salvages" dir=forward]
+	N7 -> M1 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	M1 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M2 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	M2 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_278.txt b/test/diagrams/scanned_medium/diagrams_278.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4b223ccfb16d8b8ec169f19b4ccb84e6330500c5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_278.txt
@@ -0,0 +1,38 @@
+<Ballast Water Management, connectedTo, Vessel Maintenance>
+<Bunkering, connectedTo, Digitalization of Shipping>
+<Cargo Loading, connectedTo, Customs Clearance>
+<Customs Clearance, connectedTo, Marine Data Analytics>
+<Digitalization of Shipping, connectedTo, Maritime Law Compliance>
+<Fleet Management, connectedTo, Marine Insurance>
+<Fleet Management, connectedTo, Route Planning>
+<Fuel Consumption Optimization, audits, Customs Clearance>
+<Fuel Consumption Optimization, connectedTo, Marine Insurance>
+<Fuel Consumption Optimization, connectedTo, Ship Registry>
+<Fuel Consumption Optimization, salvages, Navigation>
+<Hydrographic Surveying, connectedTo, Fuel Consumption Optimization>
+<Hydrographic Surveying, connectedTo, Marine Insurance>
+<Hydrographic Surveying, connectedTo, Navigation>
+<Hydrographic Surveying, connectedTo, Pilotage>
+<Hydrographic Surveying, connectedTo, Salvage Operations>
+<Hydrographic Surveying, connectedTo, Subsea Cable Laying>
+<Hydrographic Surveying, fuels, Voyage Optimization>
+<Inland Waterway Transport, connectedTo, Salvage Operations>
+<Marine Data Analytics, connectedTo, Fleet Management>
+<Marine Insurance, connectedTo, Navigation>
+<Marine Insurance, manages, Inland Waterway Transport>
+<Maritime Law Compliance, connectedTo, Marine Data Analytics>
+<Navigation, connectedTo, Pilotage>
+<Pilotage, connectedTo, Ballast Water Management>
+<Route Planning, connectedTo, Marine Insurance>
+<Salvage Operations, connectedTo, Subsea Cable Laying>
+<Ship Design, connectedTo, Navigation>
+<Ship Design, operates, Hydrographic Surveying>
+<Ship Registry, connectedTo, Bunkering>
+<Subsea Cable Laying, connectedTo, Ballast Water Management>
+<Subsea Cable Laying, connectedTo, Navigation>
+<Subsea Cable Laying, connectedTo, Pilotage>
+<Subsea Cable Laying, connectedTo, Port Operations>
+<Subsea Cable Laying, connectedTo, Vessel Maintenance>
+<Subsea Cable Laying, navigates, Pilotage>
+<Vessel Maintenance, connectedTo, Port Operations>
+<Voyage Optimization, connectedTo, Cargo Loading>
diff --git a/test/diagrams/scanned_medium/diagrams_279.dot b/test/diagrams/scanned_medium/diagrams_279.dot
new file mode 100644
index 0000000000000000000000000000000000000000..be222699347d99be2c38be0ff594ad1c11569dc3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_279.dot
@@ -0,0 +1,73 @@
+digraph {
+	rankdir=BT
+	N0 [label="Space Weather Forecasting" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N1 [label="Mission Control Center Management" color="#FFC085" fillcolor="#FFDAB9" shape=rect style=filled]
+	N2 [label="Rocket Propulsion Development" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+	N3 [label="Launch Operations" color="#2196F3" fillcolor="#BBDEFB" shape=rectangle style=filled]
+	N4 [label="Data Acquisition" color="#80DDEA" fillcolor="#D3F7F9" shape=rect style=filled]
+	N5 [label="Extravehicular Activity Planning" color="#80DDEA" fillcolor="#D3F7F9" shape=preparation style=filled]
+	N6 [label="Mars Mission Planning" color="#FFC085" fillcolor="#FFDAB9" shape=preparation style=filled]
+	N7 [label="Satellite Deployment" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+	N8 [label="Space Station Operations" color="#FFC085" fillcolor="#FFDAB9" shape=vnode_shape style=filled]
+	N9 [label="Re_entry Vehicle Design" color="#FFC085" fillcolor="#FFDAB9" shape=rectangle style=filled]
+	N10 [label="Space Debris Mitigation" color="#80DDEA" fillcolor="#D3F7F9" shape=database style=filled]
+	N11 [label="Astrophysics Research" color="#FFC085" fillcolor="#FFDAB9" shape=inputoutput style=filled]
+	N12 [label="Radiation Shielding Design" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+	S0 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFC085" fillcolor="#FFDAB9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#80DDEA" fillcolor="#D3F7F9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [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_Space Habitat Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Space Habitat Development"
+		nest0_0 [label="Deep Space Communications" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+		nest0_1 [label="Interplanetary Trajectory Calculation" color="#80DDEA" fillcolor="#D3F7F9" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Ground Station Operations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ground Station Operations"
+		nest1_0 [label="Exoplanet Discovery" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+		nest1_1 [label="Robotics for Space Exploration" color="#2196F3" fillcolor="#BBDEFB" shape=ellipse style=filled]
+		nest1_2 [label="Microgravity Experiments" color="#2196F3" fillcolor="#BBDEFB" shape=rectangle style=filled]
+		nest1_3 [label="New Space Technology Development" color="#FFC085" fillcolor="#FFDAB9" shape=rectangle 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="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFC085" penwidth=1.5 style=dashed label="orbits" dir=forward]
+	N4 -> N5 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#2196F3" penwidth=1.5 style=solid label="plans" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#80DDEA" penwidth=1.5 style=solid label="secures" dir=forward]
+	N11 -> N12 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N6 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed label="protects" dir=forward]
+	N6 -> nest1_0 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> S0 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#2196F3" penwidth=1.5 style=dashed label="partners" dir=forward]
+	N3 -> S2 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=solid label="transmits" dir=forward]
+	N6 -> M0 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	M0 -> N9 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N5 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_279.txt b/test/diagrams/scanned_medium/diagrams_279.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8181b02b51f3e51c4b17d2f251e8c2607d865944
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_279.txt
@@ -0,0 +1,31 @@
+<Astrophysics Research, connectedTo, Radiation Shielding Design>
+<Data Acquisition, connectedTo, Extravehicular Activity Planning>
+<Deep Space Communications, connectedTo, Interplanetary Trajectory Calculation>
+<Exoplanet Discovery, connectedTo, Robotics for Space Exploration>
+<Extravehicular Activity Planning, connectedTo, Deep Space Communications>
+<Extravehicular Activity Planning, plans, Mars Mission Planning>
+<Extravehicular Activity Planning, transmits, Re_entry Vehicle Design>
+<Interplanetary Trajectory Calculation, connectedTo, Mars Mission Planning>
+<Launch Operations, connectedTo, Mars Mission Planning>
+<Launch Operations, connectedTo, Satellite Deployment>
+<Launch Operations, connectedTo, Space Debris Mitigation>
+<Launch Operations, orbits, Data Acquisition>
+<Launch Operations, partners, Space Debris Mitigation>
+<Mars Mission Planning, connectedTo, Exoplanet Discovery>
+<Mars Mission Planning, connectedTo, Re_entry Vehicle Design>
+<Mars Mission Planning, connectedTo, Satellite Deployment>
+<Microgravity Experiments, protects, New Space Technology Development>
+<Mission Control Center Management, connectedTo, Extravehicular Activity Planning>
+<Mission Control Center Management, connectedTo, Rocket Propulsion Development>
+<New Space Technology Development, connectedTo, Radiation Shielding Design>
+<Re_entry Vehicle Design, connectedTo, Astrophysics Research>
+<Re_entry Vehicle Design, connectedTo, Radiation Shielding Design>
+<Re_entry Vehicle Design, connectedTo, Space Debris Mitigation>
+<Robotics for Space Exploration, connectedTo, Microgravity Experiments>
+<Rocket Propulsion Development, connectedTo, Extravehicular Activity Planning>
+<Rocket Propulsion Development, connectedTo, Launch Operations>
+<Satellite Deployment, connectedTo, Space Station Operations>
+<Space Debris Mitigation, secures, Astrophysics Research>
+<Space Station Operations, connectedTo, Re_entry Vehicle Design>
+<Space Weather Forecasting, connectedTo, Extravehicular Activity Planning>
+<Space Weather Forecasting, connectedTo, Mission Control Center Management>
diff --git a/test/diagrams/scanned_medium/diagrams_280.dot b/test/diagrams/scanned_medium/diagrams_280.dot
new file mode 100644
index 0000000000000000000000000000000000000000..34ab6fe76e66f58b7df0ee85a0bcc17cc07f79a2
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_280.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=LR
+	N0 [label="Ocean Acidification Studies" color="#FFCC7A" fillcolor="#FFF6D9" shape=parallelogram style=filled]
+	N1 [label="Renewable Energy Potential Assessment" color="#FF8A65" fillcolor="#FBE9E7" shape=rectangle style=filled]
+	N2 [label="Extreme Weather Event Analysis" color="#FF8A65" fillcolor="#FBE9E7" shape=action style=filled]
+	N3 [label="Ecosystem Response Modeling" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N4 [label="Biodiversity Impact Assessment" color="#26A69A" fillcolor="#E0F2F1" shape=inputoutput style=filled]
+	N5 [label="Glacier Mass Balance Monitoring" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N6 [label="Water Resource Management under Climate Change" color="#FFCC7A" fillcolor="#FFF6D9" shape=predefinedprocess style=filled]
+	N7 [label="Climate Education Programs" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N8 [label="International Climate Negotiation" color="#FFCC7A" fillcolor="#FFF6D9" shape=hexagon style=filled]
+	N9 [label="Mitigation Technology Evaluation" color="#FFCC7A" fillcolor="#FFF6D9" shape=hexagon style=filled]
+	N10 [label="Ocean Current Analysis" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N11 [label="Ice Sheet Dynamics" color="#FFCC7A" fillcolor="#FFF6D9" shape=document style=filled]
+	N12 [label="Climate Modeling" color="#26A69A" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	N13 [label="Sea Level Rise Projection" color="#26A69A" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	S0 [label="" color="#26A69A" fillcolor="#E0F2F1" 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]
+	S2 [label="" color="#26A69A" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FF8A65" fillcolor="#FBE9E7" 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]
+	subgraph cluster_Climate Change Vulnerability Assessment {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Climate Change Vulnerability Assessment"
+		nest0_0 [label="Environmental Justice Study" color="#FF8A65" fillcolor="#FBE9E7" shape=hexagon style=filled]
+		nest0_1 [label="Carbon Sequestration Technologies" color="#FF8A65" fillcolor="#FBE9E7" shape=parallelogram style=filled]
+		nest0_2 [label="Paleoclimate Reconstruction" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	}
+	subgraph cluster_Indigenous Knowledge Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Indigenous Knowledge Integration"
+		nest1_0 [label="Drought Monitoring and Forecasting" color="#26A69A" fillcolor="#E0F2F1" shape=multipledocuments style=filled]
+		nest1_1 [label="Flood Risk Assessment" color="#FF8A65" fillcolor="#FBE9E7" shape=parallelogram style=filled]
+		nest1_2 [label="Atmospheric Monitoring" color="#FF8A65" fillcolor="#FBE9E7" shape=document style=filled]
+	}
+	N0 -> N1 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FF8A65" penwidth=1.5 style=dashed 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="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#FF8A65" 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]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest1_0 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N12 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N8 -> S0 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N5 -> S1 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S2 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid label="forecasts" dir=forward]
+	N2 -> M0 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N6 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N8 -> M1 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N13 [color="#26A69A" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_280.txt b/test/diagrams/scanned_medium/diagrams_280.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6afc71bcee6463954d65e0d925c22db865fdaf00
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_280.txt
@@ -0,0 +1,31 @@
+<Atmospheric Monitoring, connectedTo, Climate Modeling>
+<Biodiversity Impact Assessment, connectedTo, Glacier Mass Balance Monitoring>
+<Carbon Sequestration Technologies, connectedTo, Paleoclimate Reconstruction>
+<Climate Education Programs, connectedTo, Ice Sheet Dynamics>
+<Climate Education Programs, connectedTo, International Climate Negotiation>
+<Climate Education Programs, connectedTo, Mitigation Technology Evaluation>
+<Climate Education Programs, connectedTo, Ocean Current Analysis>
+<Climate Modeling, connectedTo, Sea Level Rise Projection>
+<Drought Monitoring and Forecasting, connectedTo, Flood Risk Assessment>
+<Ecosystem Response Modeling, connectedTo, Biodiversity Impact Assessment>
+<Environmental Justice Study, connectedTo, Carbon Sequestration Technologies>
+<Extreme Weather Event Analysis, connectedTo, Drought Monitoring and Forecasting>
+<Extreme Weather Event Analysis, connectedTo, Ecosystem Response Modeling>
+<Extreme Weather Event Analysis, connectedTo, Water Resource Management under Climate Change>
+<Flood Risk Assessment, connectedTo, Atmospheric Monitoring>
+<Glacier Mass Balance Monitoring, connectedTo, Climate Education Programs>
+<Glacier Mass Balance Monitoring, connectedTo, Mitigation Technology Evaluation>
+<Glacier Mass Balance Monitoring, connectedTo, Sea Level Rise Projection>
+<Glacier Mass Balance Monitoring, connectedTo, Water Resource Management under Climate Change>
+<Ice Sheet Dynamics, connectedTo, Climate Modeling>
+<International Climate Negotiation, connectedTo, Mitigation Technology Evaluation>
+<International Climate Negotiation, connectedTo, Ocean Current Analysis>
+<International Climate Negotiation, connectedTo, Sea Level Rise Projection>
+<Mitigation Technology Evaluation, connectedTo, Ocean Current Analysis>
+<Ocean Acidification Studies, connectedTo, Renewable Energy Potential Assessment>
+<Ocean Current Analysis, connectedTo, Ice Sheet Dynamics>
+<Paleoclimate Reconstruction, connectedTo, Sea Level Rise Projection>
+<Renewable Energy Potential Assessment, connectedTo, Extreme Weather Event Analysis>
+<Renewable Energy Potential Assessment, forecasts, Water Resource Management under Climate Change>
+<Water Resource Management under Climate Change, connectedTo, Climate Education Programs>
+<Water Resource Management under Climate Change, connectedTo, Environmental Justice Study>
diff --git a/test/diagrams/scanned_medium/diagrams_281.dot b/test/diagrams/scanned_medium/diagrams_281.dot
new file mode 100644
index 0000000000000000000000000000000000000000..22101d99f77f6d832ebb2da54d7dd5cd291d3e4c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_281.dot
@@ -0,0 +1,66 @@
+digraph {
+	rankdir=RL
+	N0 [label="Seasonal Outlook Preparation" color="#E91E63" fillcolor="#F8BBD0" shape=document style=filled]
+	N1 [label="Atmospheric Data Collection" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	N2 [label="Severe Weather Warning" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	N3 [label="Atmospheric Sounding" color="#E91E63" fillcolor="#F8BBD0" shape=database style=filled]
+	N4 [label="Flood Prediction" color="#E91E63" fillcolor="#F8BBD0" shape=preparation style=filled]
+	N5 [label="Public Weather Briefing" color="#E91E63" fillcolor="#F8BBD0" shape=rectangle style=filled]
+	N6 [label="Nowcasting" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	N7 [label="Climate Data Archiving" color="#CDDC39" fillcolor="#E6EE9C" shape=parallelogram style=filled]
+	N8 [label="Marine Weather Forecast" color="#CDDC39" fillcolor="#E6EE9C" shape=predefinedprocess style=filled]
+	S0 [label="" color="#CDDC39" fillcolor="#E6EE9C" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#CDDC39" fillcolor="#E6EE9C" 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]
+	M0 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Weather Forecasting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Weather Forecasting"
+		nest0_0 [label="Tropical Cyclone Analysis" color="#CDDC39" fillcolor="#E6EE9C" shape=action style=filled]
+		nest0_1 [label="Radar Imaging" color="#FFDA4E" fillcolor="#FFE88D" shape=database style=filled]
+		nest0_2 [label="Humidity Sensing" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	}
+	subgraph cluster_Mesoscale Meteorology {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mesoscale Meteorology"
+		nest1_0 [label="Synoptic Chart Analysis" color="#CDDC39" fillcolor="#E6EE9C" shape=multipledocuments style=filled]
+		nest1_1 [label="Tornado Watch or Warning" color="#FFDA4E" fillcolor="#FFE88D" shape=preparation style=filled]
+		nest1_2 [label="Temperature Monitoring" color="#FFDA4E" fillcolor="#FFE88D" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="archives" dir=forward]
+	N2 -> N3 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N8 [color="#E91E63" 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="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest1_0 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N3 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S0 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#E91E63" penwidth=1.5 style=dashed label="calculates" dir=forward]
+	S1 -> N8 [color="#FFDA4E" penwidth=1.5 style=solid label="charts" dir=forward]
+	S1 -> N7 [color="#FFDA4E" penwidth=1.5 style=dashed label="observes" dir=forward]
+	N5 -> S2 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#CDDC39" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N0 -> M0 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N6 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_281.txt b/test/diagrams/scanned_medium/diagrams_281.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9db10cd320dd63684f7a4ae47648cb277815d5a6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_281.txt
@@ -0,0 +1,28 @@
+<Atmospheric Data Collection, archives, Severe Weather Warning>
+<Atmospheric Data Collection, calculates, Public Weather Briefing>
+<Atmospheric Data Collection, charts, Marine Weather Forecast>
+<Atmospheric Data Collection, connectedTo, Atmospheric Sounding>
+<Atmospheric Data Collection, connectedTo, Public Weather Briefing>
+<Atmospheric Data Collection, connectedTo, Tropical Cyclone Analysis>
+<Atmospheric Data Collection, observes, Climate Data Archiving>
+<Atmospheric Sounding, connectedTo, Flood Prediction>
+<Atmospheric Sounding, connectedTo, Nowcasting>
+<Climate Data Archiving, connectedTo, Marine Weather Forecast>
+<Flood Prediction, connectedTo, Public Weather Briefing>
+<Humidity Sensing, connectedTo, Marine Weather Forecast>
+<Nowcasting, connectedTo, Climate Data Archiving>
+<Nowcasting, connectedTo, Synoptic Chart Analysis>
+<Public Weather Briefing, analyzes, Marine Weather Forecast>
+<Public Weather Briefing, connectedTo, Climate Data Archiving>
+<Public Weather Briefing, connectedTo, Nowcasting>
+<Radar Imaging, connectedTo, Humidity Sensing>
+<Seasonal Outlook Preparation, connectedTo, Atmospheric Data Collection>
+<Seasonal Outlook Preparation, connectedTo, Nowcasting>
+<Seasonal Outlook Preparation, connectedTo, Public Weather Briefing>
+<Severe Weather Warning, connectedTo, Atmospheric Sounding>
+<Severe Weather Warning, connectedTo, Nowcasting>
+<Severe Weather Warning, connectedTo, Public Weather Briefing>
+<Synoptic Chart Analysis, connectedTo, Tornado Watch or Warning>
+<Temperature Monitoring, connectedTo, Atmospheric Sounding>
+<Tornado Watch or Warning, connectedTo, Temperature Monitoring>
+<Tropical Cyclone Analysis, connectedTo, Radar Imaging>
diff --git a/test/diagrams/scanned_medium/diagrams_282.dot b/test/diagrams/scanned_medium/diagrams_282.dot
new file mode 100644
index 0000000000000000000000000000000000000000..309ece9583406527fd3a1cb80f0a5429f703f21f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_282.dot
@@ -0,0 +1,71 @@
+digraph {
+	rankdir=RL
+	N0 [label="Waste Sorting" color="#94C0C0" fillcolor="#CADEDE" shape=preparation style=filled]
+	N1 [label="Waste Logistics Optimization" color="#94C0C0" fillcolor="#CADEDE" shape=multipledocuments style=filled]
+	N2 [label="Paper Recycling" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+	N3 [label="Waste Characterization Study" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N4 [label="Landfill Gas Collection" color="#03A9F4" fillcolor="#B3E5FC" shape=diamond style=filled]
+	N5 [label="Transfer Station Management" color="#F7BEE0" fillcolor="#FAEBF3" shape=preparation style=filled]
+	N6 [label="Waste_to_Energy Conversion" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N7 [label="Plastic Recycling Technologies" color="#03A9F4" fillcolor="#B3E5FC" shape=multipledocuments style=filled]
+	N8 [label="Illegal Dumping Monitoring" color="#F7BEE0" fillcolor="#FAEBF3" shape=vnode_shape style=filled]
+	N9 [label="Waste Reduction Planning" color="#F7BEE0" fillcolor="#FAEBF3" shape=preparation style=filled]
+	N10 [label="Zero Waste Initiatives" color="#F7BEE0" fillcolor="#FAEBF3" shape=preparation style=filled]
+	N11 [label="Textile Recycling" color="#03A9F4" fillcolor="#B3E5FC" shape=predefinedprocess style=filled]
+	N12 [label="Waste Management Data Analytics" color="#94C0C0" fillcolor="#CADEDE" shape=rectangle 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="#94C0C0" fillcolor="#CADEDE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#F7BEE0" fillcolor="#FAEBF3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Community Recycling Programs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Community Recycling Programs"
+		nest0_0 [label="Recycling Processing" color="#F7BEE0" fillcolor="#FAEBF3" shape=database style=filled]
+		nest0_1 [label="Landfill Operation" color="#F7BEE0" fillcolor="#FAEBF3" shape=preparation style=filled]
+		nest0_2 [label="Construction and Demolition Waste Management" color="#F7BEE0" fillcolor="#FAEBF3" shape=ellipse style=filled]
+		nest0_3 [label="Waste Incineration" color="#F7BEE0" fillcolor="#FAEBF3" shape=rect style=filled]
+	}
+	subgraph cluster_Material Recovery Facility Operation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Material Recovery Facility Operation"
+		nest1_0 [label="Circular Economy Initiatives" color="#F7BEE0" fillcolor="#FAEBF3" shape=inputoutput style=filled]
+		nest1_1 [label="Extended Producer Responsibility" color="#03A9F4" fillcolor="#B3E5FC" shape=parallelogram style=filled]
+		nest1_2 [label="Metal Recycling" color="#94C0C0" fillcolor="#CADEDE" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#94C0C0" 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=dashed label="audits" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N9 [color="#000000" penwidth=1.5 style=dashed label="disposes" dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest1_0 [color="#94C0C0" penwidth=1.5 style=solid label="recovers" dir=forward]
+	nest1_2 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S0 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	M0 -> N8 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	M1 -> N10 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_282.txt b/test/diagrams/scanned_medium/diagrams_282.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3dc476c68ac4910c2509e3378b4972b755b1c275
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_282.txt
@@ -0,0 +1,28 @@
+<Circular Economy Initiatives, connectedTo, Extended Producer Responsibility>
+<Construction and Demolition Waste Management, connectedTo, Waste Incineration>
+<Extended Producer Responsibility, connectedTo, Metal Recycling>
+<Illegal Dumping Monitoring, connectedTo, Textile Recycling>
+<Illegal Dumping Monitoring, connectedTo, Waste Management Data Analytics>
+<Illegal Dumping Monitoring, connectedTo, Waste Reduction Planning>
+<Illegal Dumping Monitoring, connectedTo, Zero Waste Initiatives>
+<Landfill Gas Collection, connectedTo, Transfer Station Management>
+<Landfill Gas Collection, connectedTo, Zero Waste Initiatives>
+<Landfill Operation, connectedTo, Construction and Demolition Waste Management>
+<Metal Recycling, connectedTo, Waste Logistics Optimization>
+<Paper Recycling, audits, Waste Characterization Study>
+<Plastic Recycling Technologies, connectedTo, Illegal Dumping Monitoring>
+<Recycling Processing, connectedTo, Landfill Operation>
+<Textile Recycling, connectedTo, Waste Management Data Analytics>
+<Transfer Station Management, connectedTo, Waste_to_Energy Conversion>
+<Waste Characterization Study, connectedTo, Illegal Dumping Monitoring>
+<Waste Characterization Study, connectedTo, Landfill Gas Collection>
+<Waste Incineration, disposes, Waste Reduction Planning>
+<Waste Logistics Optimization, connectedTo, Paper Recycling>
+<Waste Reduction Planning, connectedTo, Recycling Processing>
+<Waste Reduction Planning, connectedTo, Zero Waste Initiatives>
+<Waste Sorting, connectedTo, Illegal Dumping Monitoring>
+<Waste Sorting, connectedTo, Waste Logistics Optimization>
+<Waste Sorting, connectedTo, Zero Waste Initiatives>
+<Waste_to_Energy Conversion, connectedTo, Plastic Recycling Technologies>
+<Waste_to_Energy Conversion, recovers, Circular Economy Initiatives>
+<Zero Waste Initiatives, connectedTo, Textile Recycling>
diff --git a/test/diagrams/scanned_medium/diagrams_283.dot b/test/diagrams/scanned_medium/diagrams_283.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4c651cd78a4f8790ce20960a541beb98da45a6c8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_283.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=LR
+	N0 [label="Water Infrastructure Maintenance" color="#AED581" fillcolor="#F0F4C3" shape=vnode_shape style=filled]
+	N1 [label="Rainwater Harvesting" color="#66BB6A" fillcolor="#E8F5E9" shape=document style=filled]
+	N2 [label="Piping Network Repair" color="#FF9800" fillcolor="#FFE0B2" shape=preparation style=filled]
+	N3 [label="Water Rights Management" color="#66BB6A" fillcolor="#E8F5E9" shape=predefinedprocess style=filled]
+	N4 [label="Environmental Flow Assessment" color="#FF9800" fillcolor="#FFE0B2" shape=hexagon style=filled]
+	N5 [label="Wastewater Collection" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+	N6 [label="Billing and Revenue Management" color="#AED581" fillcolor="#F0F4C3" shape=parallelogram style=filled]
+	N7 [label="Dam Management" color="#AED581" fillcolor="#F0F4C3" shape=document style=filled]
+	N8 [label="Watershed Management" color="#66BB6A" fillcolor="#E8F5E9" shape=predefinedprocess style=filled]
+	N9 [label="Drinking Water Standards Compliance" color="#FF9800" fillcolor="#FFE0B2" shape=document style=filled]
+	N10 [label="Smart Water Networks" color="#66BB6A" fillcolor="#E8F5E9" shape=predefinedprocess 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]
+	S2 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#66BB6A" fillcolor="#E8F5E9" 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]
+	M2 [label="" color="#AED581" fillcolor="#F0F4C3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Industrial Water Use Optimization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Industrial Water Use Optimization"
+		nest0_0 [label="Water Conservation Planning" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+		nest0_1 [label="Irrigation Management" color="#FF9800" fillcolor="#FFE0B2" shape=vnode_shape style=filled]
+		nest0_2 [label="Aquifer Recharge" color="#FF9800" fillcolor="#FFE0B2" shape=diamond style=filled]
+	}
+	subgraph cluster_Public Awareness Campaigns {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Public Awareness Campaigns"
+		nest1_0 [label="Water Source Identification" color="#AED581" fillcolor="#F0F4C3" shape=multipledocuments style=filled]
+		nest1_1 [label="Flood Control" color="#AED581" fillcolor="#F0F4C3" shape=preparation style=filled]
+		nest1_2 [label="Water Scarcity Mitigation" color="#FF9800" fillcolor="#FFE0B2" shape=predefinedprocess style=filled]
+		nest1_3 [label="Climate Change Adaptation for Water" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	}
+	N0 -> N1 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FF9800" 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="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#66BB6A" 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="#AED581" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest0_0 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N5 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N8 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N5 -> S2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid label="mitigates" dir=forward]
+	N2 -> M1 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#66BB6A" penwidth=1.5 style=solid label="warns" dir=forward]
+	M1 -> N6 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N3 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_283.txt b/test/diagrams/scanned_medium/diagrams_283.txt
new file mode 100644
index 0000000000000000000000000000000000000000..79ec8cfa80b7dc15129a97794b06d1819738fc6a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_283.txt
@@ -0,0 +1,35 @@
+<Aquifer Recharge, connectedTo, Wastewater Collection>
+<Billing and Revenue Management, connectedTo, Dam Management>
+<Climate Change Adaptation for Water, connectedTo, Watershed Management>
+<Dam Management, connectedTo, Watershed Management>
+<Drinking Water Standards Compliance, connectedTo, Smart Water Networks>
+<Environmental Flow Assessment, connectedTo, Wastewater Collection>
+<Flood Control, connectedTo, Water Scarcity Mitigation>
+<Irrigation Management, connectedTo, Aquifer Recharge>
+<Piping Network Repair, connectedTo, Billing and Revenue Management>
+<Piping Network Repair, connectedTo, Water Rights Management>
+<Piping Network Repair, connectedTo, Water Source Identification>
+<Rainwater Harvesting, connectedTo, Billing and Revenue Management>
+<Rainwater Harvesting, connectedTo, Environmental Flow Assessment>
+<Rainwater Harvesting, connectedTo, Piping Network Repair>
+<Rainwater Harvesting, connectedTo, Smart Water Networks>
+<Rainwater Harvesting, connectedTo, Wastewater Collection>
+<Rainwater Harvesting, connectedTo, Water Conservation Planning>
+<Rainwater Harvesting, connectedTo, Water Rights Management>
+<Wastewater Collection, connectedTo, Billing and Revenue Management>
+<Wastewater Collection, connectedTo, Drinking Water Standards Compliance>
+<Wastewater Collection, connectedTo, Smart Water Networks>
+<Wastewater Collection, connectedTo, Watershed Management>
+<Water Conservation Planning, connectedTo, Irrigation Management>
+<Water Infrastructure Maintenance, connectedTo, Billing and Revenue Management>
+<Water Infrastructure Maintenance, connectedTo, Rainwater Harvesting>
+<Water Infrastructure Maintenance, connectedTo, Wastewater Collection>
+<Water Infrastructure Maintenance, connectedTo, Water Rights Management>
+<Water Infrastructure Maintenance, connectedTo, Watershed Management>
+<Water Infrastructure Maintenance, mitigates, Billing and Revenue Management>
+<Water Rights Management, connectedTo, Environmental Flow Assessment>
+<Water Rights Management, connectedTo, Wastewater Collection>
+<Water Rights Management, warns, Billing and Revenue Management>
+<Water Scarcity Mitigation, connectedTo, Climate Change Adaptation for Water>
+<Water Source Identification, connectedTo, Flood Control>
+<Watershed Management, connectedTo, Drinking Water Standards Compliance>
diff --git a/test/diagrams/scanned_medium/diagrams_284.dot b/test/diagrams/scanned_medium/diagrams_284.dot
new file mode 100644
index 0000000000000000000000000000000000000000..24277a0a05e1080828cdaa32051aa9e01b9ab935
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_284.dot
@@ -0,0 +1,85 @@
+digraph {
+	rankdir=RL
+	N0 [label="Recycling Data Tracking" color="#FF5722" fillcolor="#FFCCBC" shape=preparation style=filled]
+	N1 [label="Composting Organic Waste" color="#FF5722" fillcolor="#FFCCBC" shape=inputoutput style=filled]
+	N2 [label="Material Purity Testing" color="#FFCC7A" fillcolor="#FFF6D9" shape=parallelogram style=filled]
+	N3 [label="Recycling Education" color="#AED581" fillcolor="#F0F4C3" shape=preparation style=filled]
+	N4 [label="Chemical Recycling" color="#FFCC7A" fillcolor="#FFF6D9" shape=rectangle style=filled]
+	N5 [label="Metal Recycling" color="#FF5722" fillcolor="#FFCCBC" shape=hexagon style=filled]
+	N6 [label="End_of_Life Product Management" color="#FFCC7A" fillcolor="#FFF6D9" shape=database style=filled]
+	N7 [label="Waste Stream Analysis" color="#FFCC7A" fillcolor="#FFF6D9" shape=database style=filled]
+	N8 [label="Circular Economy Implementation" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N9 [label="Recycling Policy Advocacy" color="#FF5722" fillcolor="#FFCCBC" shape=vnode_shape style=filled]
+	N10 [label="Closed_Loop Material Flow" color="#FFCC7A" fillcolor="#FFF6D9" shape=rect style=filled]
+	N11 [label="Recycling Facility Optimization" color="#AED581" fillcolor="#F0F4C3" shape=multipledocuments style=filled]
+	N12 [label="Glass Recycling" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N13 [label="Reprocessing into Raw Material" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N14 [label="Product Design for Recyclability" color="#FFCC7A" fillcolor="#FFF6D9" shape=rect style=filled]
+	N15 [label="Collection Point Management" color="#FFCC7A" fillcolor="#FFF6D9" shape=database style=filled]
+	N16 [label="Plastic Recycling" color="#AED581" fillcolor="#F0F4C3" shape=multipledocuments style=filled]
+	N17 [label="Battery Recycling" color="#FFCC7A" fillcolor="#FFF6D9" shape=box style=filled]
+	N18 [label="Energy Recovery from Non_Recyclables" color="#FFCC7A" fillcolor="#FFF6D9" shape=document style=filled]
+	S0 [label="" color="#FFCC7A" fillcolor="#FFF6D9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#AED581" fillcolor="#F0F4C3" 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]
+	subgraph cluster_Deposit_Return Schemes {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Deposit_Return Schemes"
+		nest0_0 [label="Material Collection" color="#AED581" fillcolor="#F0F4C3" shape=predefinedprocess style=filled]
+		nest0_1 [label="Cleaning and Processing" color="#AED581" fillcolor="#F0F4C3" shape=document style=filled]
+		nest0_2 [label="Waste Audit for Recycling" color="#AED581" fillcolor="#F0F4C3" shape=predefinedprocess style=filled]
+		nest0_3 [label="Commercial Recycling Solutions" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	}
+	subgraph cluster_Recycling Infrastructure Development {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Recycling Infrastructure Development"
+		nest1_0 [label="New Product Manufacturing" color="#FF5722" fillcolor="#FFCCBC" shape=predefinedprocess style=filled]
+		nest1_1 [label="Sorting and Segregation" color="#AED581" fillcolor="#F0F4C3" shape=preparation style=filled]
+		nest1_2 [label="Electronic Waste Recycling" color="#FFCC7A" fillcolor="#FFF6D9" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#FF5722" 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=solid dir=forward]
+	N3 -> N4 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FF5722" penwidth=1.5 style=dashed label="educates" dir=forward]
+	N12 -> N13 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#FFCC7A" penwidth=1.5 style=solid label="tracks" 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]
+	nest0_1 -> nest0_2 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N10 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N16 -> nest1_0 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N4 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#FF5722" penwidth=1.5 style=dashed label="manufactures" dir=forward]
+	S0 -> N12 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N7 -> S1 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#FFCC7A" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N10 -> M0 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	M0 -> N12 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N11 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#FFCC7A" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N17 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_284.txt b/test/diagrams/scanned_medium/diagrams_284.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a2f9f49b672c4595fa73e618456251e746bc63d5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_284.txt
@@ -0,0 +1,38 @@
+<Battery Recycling, connectedTo, Energy Recovery from Non_Recyclables>
+<Chemical Recycling, connectedTo, Glass Recycling>
+<Chemical Recycling, connectedTo, Metal Recycling>
+<Circular Economy Implementation, connectedTo, Recycling Policy Advocacy>
+<Cleaning and Processing, connectedTo, Waste Audit for Recycling>
+<Closed_Loop Material Flow, connectedTo, Glass Recycling>
+<Closed_Loop Material Flow, connectedTo, Recycling Facility Optimization>
+<Collection Point Management, connectedTo, Plastic Recycling>
+<Commercial Recycling Solutions, connectedTo, Closed_Loop Material Flow>
+<Composting Organic Waste, connectedTo, Battery Recycling>
+<Composting Organic Waste, connectedTo, Glass Recycling>
+<Composting Organic Waste, connectedTo, Material Purity Testing>
+<Composting Organic Waste, connectedTo, Waste Stream Analysis>
+<Composting Organic Waste, manufactures, Recycling Policy Advocacy>
+<Electronic Waste Recycling, connectedTo, Chemical Recycling>
+<End_of_Life Product Management, connectedTo, Glass Recycling>
+<End_of_Life Product Management, connectedTo, Waste Stream Analysis>
+<Glass Recycling, connectedTo, Reprocessing into Raw Material>
+<Material Collection, connectedTo, Cleaning and Processing>
+<Material Purity Testing, connectedTo, Battery Recycling>
+<Material Purity Testing, connectedTo, Recycling Education>
+<Metal Recycling, connectedTo, End_of_Life Product Management>
+<Metal Recycling, connectedTo, Material Collection>
+<New Product Manufacturing, connectedTo, Sorting and Segregation>
+<Plastic Recycling, connectedTo, New Product Manufacturing>
+<Plastic Recycling, tracks, Battery Recycling>
+<Product Design for Recyclability, connectedTo, Collection Point Management>
+<Recycling Data Tracking, connectedTo, Composting Organic Waste>
+<Recycling Education, connectedTo, Chemical Recycling>
+<Recycling Facility Optimization, connectedTo, Battery Recycling>
+<Recycling Facility Optimization, educates, Glass Recycling>
+<Recycling Policy Advocacy, connectedTo, Closed_Loop Material Flow>
+<Reprocessing into Raw Material, connectedTo, Product Design for Recyclability>
+<Sorting and Segregation, connectedTo, Electronic Waste Recycling>
+<Waste Audit for Recycling, connectedTo, Commercial Recycling Solutions>
+<Waste Stream Analysis, connectedTo, Circular Economy Implementation>
+<Waste Stream Analysis, connectedTo, Glass Recycling>
+<Waste Stream Analysis, connectedTo, Product Design for Recyclability>
diff --git a/test/diagrams/scanned_medium/diagrams_285.dot b/test/diagrams/scanned_medium/diagrams_285.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c8c2a16a632e9b011c4ef644b1fd78340c6d1c31
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_285.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=RL
+	N0 [label="Erosion Control" color="#CFCFCF" fillcolor="#F6F6F6" shape=rectangle style=filled]
+	N1 [label="Afforestation" color="#CFCFCF" fillcolor="#F6F6F6" shape=preparation style=filled]
+	N2 [label="Forest Research" color="#7986CB" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	N3 [label="Reforestation" color="#C0CA33" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N4 [label="Forest Carbon Accounting" color="#C0CA33" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	N5 [label="Logging Operations" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N6 [label="Watershed Protection" color="#CFCFCF" fillcolor="#F6F6F6" shape=database style=filled]
+	N7 [label="Sawmill Processing" color="#CFCFCF" fillcolor="#F6F6F6" shape=database style=filled]
+	N8 [label="Carbon Sequestration Monitoring" color="#CFCFCF" fillcolor="#F6F6F6" shape=action style=filled]
+	N9 [label="Forest Land Use Planning" color="#7986CB" fillcolor="#E8EAF6" 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="#7986CB" fillcolor="#E8EAF6" 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="#CFCFCF" fillcolor="#F6F6F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Forest Road Construction {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Forest Road Construction"
+		nest0_0 [label="Forest Fire Management" color="#C0CA33" fillcolor="#F9FBE7" shape=diamond style=filled]
+		nest0_1 [label="Forest Inventory" color="#CFCFCF" fillcolor="#F6F6F6" shape=preparation style=filled]
+	}
+	subgraph cluster_Timber Harvesting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Timber Harvesting"
+		nest1_0 [label="Forestry Education" color="#7986CB" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+		nest1_1 [label="Soil Conservation" color="#7986CB" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+		nest1_2 [label="Wildlife Habitat Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=diamond style=filled]
+		nest1_3 [label="Biodiversity Conservation in Forests" color="#CFCFCF" fillcolor="#F6F6F6" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#CFCFCF" penwidth=1.5 style=solid label="removes" dir=forward]
+	N8 -> N9 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N6 [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="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest1_0 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N3 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N6 -> S0 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S1 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#C0CA33" penwidth=1.5 style=solid label="develops" dir=forward]
+	N5 -> M0 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#CFCFCF" penwidth=1.5 style=dashed label="certifies" dir=forward]
+	M1 -> N6 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N3 -> M2 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M2 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	M2 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_285.txt b/test/diagrams/scanned_medium/diagrams_285.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1570e48c04513f452465717df2f104249fe4da5d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_285.txt
@@ -0,0 +1,28 @@
+<Afforestation, certifies, Watershed Protection>
+<Afforestation, connectedTo, Forest Research>
+<Afforestation, connectedTo, Forestry Education>
+<Biodiversity Conservation in Forests, connectedTo, Reforestation>
+<Carbon Sequestration Monitoring, connectedTo, Forest Land Use Planning>
+<Erosion Control, connectedTo, Afforestation>
+<Erosion Control, connectedTo, Watershed Protection>
+<Forest Carbon Accounting, connectedTo, Forest Fire Management>
+<Forest Carbon Accounting, connectedTo, Logging Operations>
+<Forest Fire Management, connectedTo, Forest Inventory>
+<Forest Inventory, connectedTo, Watershed Protection>
+<Forest Research, connectedTo, Forest Land Use Planning>
+<Forest Research, connectedTo, Reforestation>
+<Forest Research, connectedTo, Sawmill Processing>
+<Forest Research, connectedTo, Watershed Protection>
+<Forestry Education, connectedTo, Soil Conservation>
+<Logging Operations, connectedTo, Sawmill Processing>
+<Logging Operations, connectedTo, Watershed Protection>
+<Reforestation, connectedTo, Forest Carbon Accounting>
+<Reforestation, connectedTo, Forest Land Use Planning>
+<Sawmill Processing, connectedTo, Forest Land Use Planning>
+<Sawmill Processing, removes, Carbon Sequestration Monitoring>
+<Soil Conservation, connectedTo, Wildlife Habitat Management>
+<Watershed Protection, connectedTo, Carbon Sequestration Monitoring>
+<Watershed Protection, connectedTo, Forest Land Use Planning>
+<Watershed Protection, connectedTo, Sawmill Processing>
+<Watershed Protection, develops, Carbon Sequestration Monitoring>
+<Wildlife Habitat Management, connectedTo, Biodiversity Conservation in Forests>
diff --git a/test/diagrams/scanned_medium/diagrams_286.dot b/test/diagrams/scanned_medium/diagrams_286.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f32d34cfb238e5ef3ae25f59b9f649b5195b70d5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_286.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=RL
+	N0 [label="Anesthesia Administration" color="#81C784" fillcolor="#F1F8E9" shape=inputoutput style=filled]
+	N1 [label="Veterinary Technology Training" color="#81C784" fillcolor="#F1F8E9" shape=database style=filled]
+	N2 [label="Sterilization Protocols" color="#81C784" fillcolor="#F1F8E9" shape=hexagon style=filled]
+	N3 [label="Public Health Vet Services" color="#81C784" fillcolor="#F1F8E9" shape=document style=filled]
+	N4 [label="Diagnosis" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N5 [label="Toxicology Testing" color="#BA68C8" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N6 [label="Animal Welfare Assessment" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N7 [label="Spay or Neuter Procedure" color="#FFB2A5" fillcolor="#FFDCD6" shape=rect style=filled]
+	N8 [label="Biosecurity Measures" color="#BA68C8" fillcolor="#F3E5F5" shape=box style=filled]
+	N9 [label="Pain Management" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N10 [label="Microchipping" color="#BA68C8" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N11 [label="Emergency Vet Services" color="#FFB2A5" fillcolor="#FFDCD6" shape=rectangle style=filled]
+	N12 [label="Allergy Testing" color="#81C784" fillcolor="#F1F8E9" shape=preparation style=filled]
+	N13 [label="Genetic Counseling for Animals" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N14 [label="Post_operative Care" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	N15 [label="Parasite Control" color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+	S0 [label="" color="#FFB2A5" fillcolor="#FFDCD6" 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]
+	S2 [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="#81C784" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Farm Animal Health Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Farm Animal Health Management"
+		nest0_0 [label="Medical Record Keeping" color="#81C784" fillcolor="#F1F8E9" shape=action style=filled]
+		nest0_1 [label="Reproductive Services" color="#81C784" fillcolor="#F1F8E9" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Dental Care {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Dental Care"
+		nest1_0 [label="Veterinary Pathology" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+		nest1_1 [label="Prescription" color="#FFB2A5" fillcolor="#FFDCD6" shape=database style=filled]
+		nest1_2 [label="Vaccination" color="#FFB2A5" fillcolor="#FFDCD6" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#BA68C8" penwidth=1.5 style=dashed label="sedates" dir=forward]
+	N6 -> N7 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest0_0 [color="#81C784" penwidth=1.5 style=solid label="rehabilitates" dir=forward]
+	nest0_1 -> N3 [color="#BA68C8" 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="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest1_0 [color="#BA68C8" penwidth=1.5 style=dashed label="regulates" dir=forward]
+	nest1_2 -> N1 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#BA68C8" penwidth=1.5 style=dashed label="records" dir=forward]
+	N0 -> S1 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid label="inspects" dir=forward]
+	N1 -> S2 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N4 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	S2 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	M0 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_286.txt b/test/diagrams/scanned_medium/diagrams_286.txt
new file mode 100644
index 0000000000000000000000000000000000000000..89a4dd6fcc0848e7dd4ac080bef60045d54ee40a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_286.txt
@@ -0,0 +1,34 @@
+<Allergy Testing, connectedTo, Genetic Counseling for Animals>
+<Anesthesia Administration, connectedTo, Animal Welfare Assessment>
+<Anesthesia Administration, connectedTo, Public Health Vet Services>
+<Anesthesia Administration, connectedTo, Sterilization Protocols>
+<Anesthesia Administration, connectedTo, Veterinary Technology Training>
+<Anesthesia Administration, inspects, Pain Management>
+<Animal Welfare Assessment, connectedTo, Spay or Neuter Procedure>
+<Biosecurity Measures, connectedTo, Pain Management>
+<Diagnosis, connectedTo, Pain Management>
+<Diagnosis, connectedTo, Spay or Neuter Procedure>
+<Diagnosis, connectedTo, Toxicology Testing>
+<Diagnosis, records, Parasite Control>
+<Emergency Vet Services, connectedTo, Allergy Testing>
+<Genetic Counseling for Animals, connectedTo, Post_operative Care>
+<Medical Record Keeping, connectedTo, Reproductive Services>
+<Microchipping, connectedTo, Emergency Vet Services>
+<Microchipping, regulates, Veterinary Pathology>
+<Pain Management, connectedTo, Microchipping>
+<Post_operative Care, connectedTo, Parasite Control>
+<Prescription, connectedTo, Vaccination>
+<Public Health Vet Services, connectedTo, Diagnosis>
+<Reproductive Services, connectedTo, Public Health Vet Services>
+<Spay or Neuter Procedure, connectedTo, Biosecurity Measures>
+<Spay or Neuter Procedure, rehabilitates, Medical Record Keeping>
+<Sterilization Protocols, connectedTo, Public Health Vet Services>
+<Toxicology Testing, sedates, Animal Welfare Assessment>
+<Vaccination, connectedTo, Veterinary Technology Training>
+<Veterinary Pathology, connectedTo, Prescription>
+<Veterinary Technology Training, connectedTo, Animal Welfare Assessment>
+<Veterinary Technology Training, connectedTo, Biosecurity Measures>
+<Veterinary Technology Training, connectedTo, Diagnosis>
+<Veterinary Technology Training, connectedTo, Public Health Vet Services>
+<Veterinary Technology Training, connectedTo, Spay or Neuter Procedure>
+<Veterinary Technology Training, connectedTo, Sterilization Protocols>
diff --git a/test/diagrams/scanned_medium/diagrams_287.dot b/test/diagrams/scanned_medium/diagrams_287.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d2df074b07eb581be1c276c74d7e0507699b59fa
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_287.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=RL
+	N0 [label="Infant Care" color="#A188DB" fillcolor="#DED7F0" shape=inputoutput style=filled]
+	N1 [label="Safety Supervision" color="#A188DB" fillcolor="#DED7F0" shape=action style=filled]
+	N2 [label="Child Protection Policies" color="#A188DB" fillcolor="#DED7F0" shape=inputoutput style=filled]
+	N3 [label="Sensory Play" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N4 [label="Learning Material Selection" color="#A1D7CD" fillcolor="#EDF5F3" shape=hexagon style=filled]
+	N5 [label="Social Skill Development" color="#A188DB" fillcolor="#DED7F0" shape=hexagon style=filled]
+	N6 [label="Behavior Management" color="#CFCFCF" fillcolor="#F6F6F6" shape=diamond style=filled]
+	N7 [label="Nap Time Supervision" color="#A188DB" fillcolor="#DED7F0" shape=parallelogram style=filled]
+	N8 [label="First Aid Administration" color="#A1D7CD" fillcolor="#EDF5F3" shape=action style=filled]
+	N9 [label="Early Literacy Programs" color="#A1D7CD" fillcolor="#EDF5F3" shape=document style=filled]
+	N10 [label="Music and Movement Activities" color="#A1D7CD" fillcolor="#EDF5F3" shape=multipledocuments style=filled]
+	S0 [label="" color="#A188DB" fillcolor="#DED7F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#A188DB" fillcolor="#DED7F0" 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="#A188DB" fillcolor="#DED7F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Childcare Facility Licensing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Childcare Facility Licensing"
+		nest0_0 [label="Field Trip Organization" color="#A188DB" fillcolor="#DED7F0" shape=action style=filled]
+		nest0_1 [label="Playground Safety Inspection" color="#A188DB" fillcolor="#DED7F0" shape=database style=filled]
+		nest0_2 [label="Preschool Education" color="#CFCFCF" fillcolor="#F6F6F6" shape=box style=filled]
+	}
+	subgraph cluster_Teacher_Child Ratio Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Teacher_Child Ratio Management"
+		nest1_0 [label="Creative Arts Activities" color="#A1D7CD" fillcolor="#EDF5F3" shape=document style=filled]
+		nest1_1 [label="Toddler Activities" color="#A1D7CD" fillcolor="#EDF5F3" shape=action style=filled]
+		nest1_2 [label="Outdoor Play Supervision" color="#A188DB" fillcolor="#DED7F0" shape=rectangle style=filled]
+		nest1_3 [label="Emotional Support" color="#CFCFCF" fillcolor="#F6F6F6" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#A1D7CD" 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=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="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#A188DB" 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="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N6 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S0 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N5 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	M0 -> N9 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#A188DB" penwidth=1.5 style=solid label="cleans" 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_medium/diagrams_287.txt b/test/diagrams/scanned_medium/diagrams_287.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3e18b6db3f90637d38755040c77edaad3d65d19e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_287.txt
@@ -0,0 +1,28 @@
+<Behavior Management, connectedTo, Nap Time Supervision>
+<Child Protection Policies, connectedTo, Music and Movement Activities>
+<Child Protection Policies, connectedTo, Sensory Play>
+<Creative Arts Activities, connectedTo, Toddler Activities>
+<Early Literacy Programs, connectedTo, Music and Movement Activities>
+<Emotional Support, connectedTo, Behavior Management>
+<Field Trip Organization, connectedTo, Playground Safety Inspection>
+<First Aid Administration, connectedTo, Early Literacy Programs>
+<Infant Care, cleans, Music and Movement Activities>
+<Infant Care, connectedTo, Early Literacy Programs>
+<Infant Care, connectedTo, Safety Supervision>
+<Learning Material Selection, connectedTo, Early Literacy Programs>
+<Learning Material Selection, connectedTo, Field Trip Organization>
+<Learning Material Selection, connectedTo, Social Skill Development>
+<Nap Time Supervision, connectedTo, Creative Arts Activities>
+<Nap Time Supervision, connectedTo, Early Literacy Programs>
+<Nap Time Supervision, connectedTo, First Aid Administration>
+<Nap Time Supervision, connectedTo, Music and Movement Activities>
+<Outdoor Play Supervision, connectedTo, Emotional Support>
+<Playground Safety Inspection, connectedTo, Preschool Education>
+<Preschool Education, connectedTo, Learning Material Selection>
+<Safety Supervision, connectedTo, Child Protection Policies>
+<Safety Supervision, connectedTo, Early Literacy Programs>
+<Sensory Play, connectedTo, Learning Material Selection>
+<Social Skill Development, connectedTo, Behavior Management>
+<Social Skill Development, connectedTo, Early Literacy Programs>
+<Social Skill Development, connectedTo, Nap Time Supervision>
+<Toddler Activities, connectedTo, Outdoor Play Supervision>
diff --git a/test/diagrams/scanned_medium/diagrams_288.dot b/test/diagrams/scanned_medium/diagrams_288.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8b3516353233ef9f60b93f3f828e9434ac27601b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_288.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=BT
+	N0 [label="Personal Care Assistance" color="#C2B2F0" fillcolor="#EFE6FF" shape=preparation style=filled]
+	N1 [label="Physical Therapy" color="#42A5F5" fillcolor="#F1F8FF" shape=ellipse style=filled]
+	N2 [label="Palliative Care" color="#42A5F5" fillcolor="#F1F8FF" shape=document style=filled]
+	N3 [label="Pain Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=rectangle style=filled]
+	N4 [label="Mobility Support" color="#CD8FF2" fillcolor="#ECCFF5" shape=vnode_shape style=filled]
+	N5 [label="Legal Aid Referrals" color="#CD8FF2" fillcolor="#ECCFF5" shape=diamond style=filled]
+	N6 [label="Care Plan Development" color="#C2B2F0" fillcolor="#EFE6FF" shape=diamond style=filled]
+	N7 [label="Elder Abuse Prevention" color="#C2B2F0" fillcolor="#EFE6FF" shape=parallelogram style=filled]
+	N8 [label="Incontinence Care" color="#42A5F5" fillcolor="#F1F8FF" shape=vnode_shape style=filled]
+	N9 [label="Long_Term Care Planning" color="#CD8FF2" fillcolor="#ECCFF5" shape=rect style=filled]
+	S0 [label="" color="#42A5F5" fillcolor="#F1F8FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#C2B2F0" fillcolor="#EFE6FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#C2B2F0" fillcolor="#EFE6FF" 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]
+	M1 [label="" color="#C2B2F0" fillcolor="#EFE6FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Safety Assessments {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Safety Assessments"
+		nest0_0 [label="Caregiver Training" color="#42A5F5" fillcolor="#F1F8FF" shape=rect style=filled]
+		nest0_1 [label="Smart Home Integration for Seniors" color="#42A5F5" fillcolor="#F1F8FF" shape=action style=filled]
+		nest0_2 [label="Nursing Care" color="#C2B2F0" fillcolor="#EFE6FF" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Respite Care {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Respite Care"
+		nest1_0 [label="Rehabilitation Support" color="#42A5F5" fillcolor="#F1F8FF" shape=diamond style=filled]
+		nest1_1 [label="Transportation Assistance" color="#42A5F5" fillcolor="#F1F8FF" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#C2B2F0" penwidth=1.5 style=dashed label="accompanies" dir=forward]
+	N1 -> N2 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#C2B2F0" 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=solid dir=forward]
+	N8 -> N9 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest1_0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N9 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N2 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#42A5F5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N3 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S2 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	S2 -> N9 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#42A5F5" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N8 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_288.txt b/test/diagrams/scanned_medium/diagrams_288.txt
new file mode 100644
index 0000000000000000000000000000000000000000..525f6ed765e22359a095d51e0a6c232af2b2c36d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_288.txt
@@ -0,0 +1,27 @@
+<Care Plan Development, connectedTo, Elder Abuse Prevention>
+<Care Plan Development, connectedTo, Incontinence Care>
+<Care Plan Development, connectedTo, Long_Term Care Planning>
+<Care Plan Development, connectedTo, Rehabilitation Support>
+<Caregiver Training, connectedTo, Smart Home Integration for Seniors>
+<Elder Abuse Prevention, connectedTo, Incontinence Care>
+<Incontinence Care, connectedTo, Long_Term Care Planning>
+<Legal Aid Referrals, connectedTo, Care Plan Development>
+<Mobility Support, connectedTo, Legal Aid Referrals>
+<Nursing Care, connectedTo, Palliative Care>
+<Pain Management, connectedTo, Mobility Support>
+<Palliative Care, connectedTo, Incontinence Care>
+<Palliative Care, connectedTo, Long_Term Care Planning>
+<Palliative Care, connectedTo, Pain Management>
+<Personal Care Assistance, accompanies, Physical Therapy>
+<Personal Care Assistance, connectedTo, Incontinence Care>
+<Personal Care Assistance, connectedTo, Long_Term Care Planning>
+<Personal Care Assistance, connectedTo, Mobility Support>
+<Personal Care Assistance, connectedTo, Pain Management>
+<Personal Care Assistance, connectedTo, Palliative Care>
+<Physical Therapy, connectedTo, Caregiver Training>
+<Physical Therapy, connectedTo, Incontinence Care>
+<Physical Therapy, connectedTo, Long_Term Care Planning>
+<Physical Therapy, connectedTo, Palliative Care>
+<Rehabilitation Support, connectedTo, Transportation Assistance>
+<Smart Home Integration for Seniors, connectedTo, Nursing Care>
+<Transportation Assistance, connectedTo, Long_Term Care Planning>
diff --git a/test/diagrams/scanned_medium/diagrams_289.dot b/test/diagrams/scanned_medium/diagrams_289.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e33b19a448cbeb6abd84702040491c865832c3ff
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_289.dot
@@ -0,0 +1,61 @@
+digraph {
+	rankdir=TB
+	N0 [label="Resilience Building" color="#A1887F" fillcolor="#EFEBE9" shape=box style=filled]
+	N1 [label="Emergency Drills and Exercises" color="#9FA9E1" fillcolor="#D6D9F0" shape=rect style=filled]
+	N2 [label="Logistics and Supply Chain" color="#FFF8A6" fillcolor="#FFFDE0" shape=box style=filled]
+	N3 [label="Shelter Management" color="#9FA9E1" fillcolor="#D6D9F0" shape=database style=filled]
+	N4 [label="Environmental Remediation" color="#9FA9E1" fillcolor="#D6D9F0" shape=preparation style=filled]
+	N5 [label="Public Awareness Campaigns" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+	N6 [label="Volunteer Coordination" color="#9FA9E1" fillcolor="#D6D9F0" shape=document style=filled]
+	N7 [label="Resource Mobilization" color="#9FA9E1" fillcolor="#D6D9F0" shape=rect style=filled]
+	N8 [label="Hazard Mapping" color="#9FA9E1" fillcolor="#D6D9F0" shape=predefinedprocess style=filled]
+	N9 [label="Satellite Imagery Analysis" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	S0 [label="" color="#A1887F" fillcolor="#EFEBE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#A1887F" fillcolor="#EFEBE9" 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_Early Recovery Actions {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Early Recovery Actions"
+		nest0_0 [label="Economic Recovery Initiatives" color="#9FA9E1" fillcolor="#D6D9F0" shape=parallelogram style=filled]
+		nest0_1 [label="Geographic Information Systems for Disasters" color="#FFF8A6" fillcolor="#FFFDE0" shape=database style=filled]
+		nest0_2 [label="Psychosocial Support" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+		nest0_3 [label="Drone Deployment for Assessment" color="#9FA9E1" fillcolor="#D6D9F0" shape=action style=filled]
+	}
+	subgraph cluster_Capacity Building for Local Communities {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Capacity Building for Local Communities"
+		nest1_0 [label="Debris Management" color="#A1887F" fillcolor="#EFEBE9" shape=vnode_shape style=filled]
+		nest1_1 [label="Search and Rescue Operations" color="#9FA9E1" fillcolor="#D6D9F0" shape=rectangle style=filled]
+		nest1_2 [label="Mitigation Strategies" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="locates" dir=forward]
+	N6 -> N7 [color="#A1887F" penwidth=1.5 style=dashed label="maps" dir=forward]
+	N7 -> N8 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#9FA9E1" penwidth=1.5 style=dashed label="distributes" dir=forward]
+	nest0_1 -> nest0_2 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N4 [color="#A1887F" 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="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed label="mitigates" dir=forward]
+	nest1_2 -> N7 [color="#000000" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N1 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#9FA9E1" penwidth=1.5 style=dashed label="assesses" dir=forward]
+	N6 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M2 -> N6 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_289.txt b/test/diagrams/scanned_medium/diagrams_289.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7a17e647f13319a80e45cd7dfbfd1024de0d84c6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_289.txt
@@ -0,0 +1,25 @@
+<Debris Management, connectedTo, Search and Rescue Operations>
+<Drone Deployment for Assessment, connectedTo, Environmental Remediation>
+<Economic Recovery Initiatives, distributes, Geographic Information Systems for Disasters>
+<Emergency Drills and Exercises, connectedTo, Logistics and Supply Chain>
+<Emergency Drills and Exercises, connectedTo, Public Awareness Campaigns>
+<Emergency Drills and Exercises, connectedTo, Resource Mobilization>
+<Environmental Remediation, assesses, Hazard Mapping>
+<Environmental Remediation, connectedTo, Public Awareness Campaigns>
+<Environmental Remediation, connectedTo, Volunteer Coordination>
+<Environmental Remediation, mitigates, Debris Management>
+<Geographic Information Systems for Disasters, connectedTo, Psychosocial Support>
+<Hazard Mapping, connectedTo, Satellite Imagery Analysis>
+<Logistics and Supply Chain, connectedTo, Hazard Mapping>
+<Logistics and Supply Chain, connectedTo, Shelter Management>
+<Logistics and Supply Chain, connectedTo, Volunteer Coordination>
+<Mitigation Strategies, analyzes, Resource Mobilization>
+<Psychosocial Support, connectedTo, Drone Deployment for Assessment>
+<Public Awareness Campaigns, locates, Volunteer Coordination>
+<Resilience Building, connectedTo, Emergency Drills and Exercises>
+<Resource Mobilization, connectedTo, Hazard Mapping>
+<Search and Rescue Operations, connectedTo, Mitigation Strategies>
+<Shelter Management, connectedTo, Environmental Remediation>
+<Volunteer Coordination, connectedTo, Economic Recovery Initiatives>
+<Volunteer Coordination, connectedTo, Hazard Mapping>
+<Volunteer Coordination, maps, Resource Mobilization>
diff --git a/test/diagrams/scanned_medium/diagrams_29.dot b/test/diagrams/scanned_medium/diagrams_29.dot
new file mode 100644
index 0000000000000000000000000000000000000000..30d4c021dbb82a4f6b67e9ff9685e56c145084b3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_29.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=LR
+	N0 [label="Subscription Management" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N1 [label="Virtual Reality Content Creation" color="#FBC02D" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+	N2 [label="Interactive Storytelling" color="#FBC02D" fillcolor="#FFFDE7" shape=database style=filled]
+	N3 [label="Talent Management" color="#FBC02D" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N4 [label="Photojournalism" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N5 [label="Digital Marketing" color="#AABEC6" fillcolor="#E0E6E9" shape=inputoutput style=filled]
+	N6 [label="Audience Segmentation" color="#AABEC6" fillcolor="#E0E6E9" shape=predefinedprocess style=filled]
+	N7 [label="Game Streaming" color="#AABEC6" fillcolor="#E0E6E9" shape=action style=filled]
+	N8 [label="Augmented Reality Experiences" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N0 -> N1 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#B0C5CD" penwidth=1.5 style=dashed label="promotes" dir=forward]
+	N3 -> N4 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#B0C5CD" penwidth=1.5 style=solid label="mixes" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#AABEC6" penwidth=1.5 style=dashed label="curates" dir=forward]
+	N7 -> N8 [color="#AABEC6" penwidth=1.5 style=dashed label="films" dir=forward]
+	N3 -> N7 [color="#FBC02D" penwidth=1.5 style=solid label="markets" dir=forward]
+	N1 -> N0 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_29.txt b/test/diagrams/scanned_medium/diagrams_29.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c91adb1decb07f0c32189aa39ff6fd4dc90654c3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_29.txt
@@ -0,0 +1,10 @@
+<Audience Segmentation, curates, Game Streaming>
+<Digital Marketing, connectedTo, Audience Segmentation>
+<Game Streaming, films, Augmented Reality Experiences>
+<Interactive Storytelling, promotes, Talent Management>
+<Photojournalism, mixes, Digital Marketing>
+<Subscription Management, connectedTo, Virtual Reality Content Creation>
+<Talent Management, connectedTo, Photojournalism>
+<Talent Management, markets, Game Streaming>
+<Virtual Reality Content Creation, connectedTo, Interactive Storytelling>
+<Virtual Reality Content Creation, connectedTo, Subscription Management>
diff --git a/test/diagrams/scanned_medium/diagrams_290.dot b/test/diagrams/scanned_medium/diagrams_290.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6633238b0ce6f0cf4480cb7906a1cc06095f0edc
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_290.dot
@@ -0,0 +1,67 @@
+digraph {
+	rankdir=BT
+	N0 [label="Counter_Terrorism Operations" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N1 [label="Air Operations" color="#CDDC39" fillcolor="#E6EE9C" shape=parallelogram style=filled]
+	N2 [label="Specialized Training" color="#F44336" fillcolor="#FFCDD2" shape=parallelogram style=filled]
+	N3 [label="Disaster Relief Deployment" color="#BDAFA8" fillcolor="#E4E0DF" shape=predefinedprocess style=filled]
+	N4 [label="Operations Planning" color="#CDDC39" fillcolor="#E6EE9C" shape=multipledocuments style=filled]
+	N5 [label="Intelligence Gathering" color="#CDDC39" fillcolor="#E6EE9C" shape=inputoutput style=filled]
+	N6 [label="Defense Procurement" color="#F44336" fillcolor="#FFCDD2" shape=hexagon style=filled]
+	N7 [label="Peacekeeping Missions" color="#BDAFA8" fillcolor="#E4E0DF" shape=rect style=filled]
+	N8 [label="Basic Training" color="#CDDC39" fillcolor="#E6EE9C" shape=database style=filled]
+	N9 [label="Surveillance" color="#BDAFA8" fillcolor="#E4E0DF" shape=multipledocuments style=filled]
+	N10 [label="Joint Exercises" color="#F44336" fillcolor="#FFCDD2" shape=rectangle style=filled]
+	N11 [label="Naval Operations" color="#F44336" fillcolor="#FFCDD2" shape=rect style=filled]
+	N12 [label="Rules of Engagement" color="#CDDC39" fillcolor="#E6EE9C" shape=vnode_shape style=filled]
+	N13 [label="Medical Support" color="#BDAFA8" fillcolor="#E4E0DF" shape=rectangle style=filled]
+	S0 [label="" color="#CDDC39" fillcolor="#E6EE9C" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#CDDC39" fillcolor="#E6EE9C" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#CDDC39" fillcolor="#E6EE9C" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#F44336" fillcolor="#FFCDD2" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Family Support Programs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Family Support Programs"
+		nest0_0 [label="Equipment Maintenance" color="#BDAFA8" fillcolor="#E4E0DF" shape=preparation style=filled]
+		nest0_1 [label="Space Operations" color="#BDAFA8" fillcolor="#E4E0DF" shape=hexagon style=filled]
+	}
+	subgraph cluster_Chaplain Services {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Chaplain Services"
+		nest1_0 [label="Civil_Military Cooperation" color="#F44336" fillcolor="#FFCDD2" shape=inputoutput style=filled]
+		nest1_1 [label="Targeting" color="#F44336" fillcolor="#FFCDD2" shape=database style=filled]
+	}
+	N0 -> N1 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#CDDC39" 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=solid dir=forward]
+	N5 -> N6 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#F44336" penwidth=1.5 style=dashed label="surveys" dir=forward]
+	N10 -> N11 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#BDAFA8" penwidth=1.5 style=solid label="maps" dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=solid label="operates" dir=forward]
+	nest0_1 -> N12 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N13 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N4 -> S0 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N10 -> S1 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> S2 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#CDDC39" penwidth=1.5 style=solid label="commands" dir=forward]
+	S2 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M2 -> N7 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_290.txt b/test/diagrams/scanned_medium/diagrams_290.txt
new file mode 100644
index 0000000000000000000000000000000000000000..db23319e0d97f0a177809ecd3111906e331db877
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_290.txt
@@ -0,0 +1,28 @@
+<Air Operations, connectedTo, Peacekeeping Missions>
+<Air Operations, connectedTo, Specialized Training>
+<Basic Training, connectedTo, Surveillance>
+<Civil_Military Cooperation, connectedTo, Targeting>
+<Counter_Terrorism Operations, connectedTo, Air Operations>
+<Defense Procurement, connectedTo, Peacekeeping Missions>
+<Defense Procurement, operates, Equipment Maintenance>
+<Disaster Relief Deployment, connectedTo, Operations Planning>
+<Disaster Relief Deployment, connectedTo, Peacekeeping Missions>
+<Equipment Maintenance, connectedTo, Space Operations>
+<Intelligence Gathering, connectedTo, Defense Procurement>
+<Joint Exercises, connectedTo, Medical Support>
+<Joint Exercises, connectedTo, Naval Operations>
+<Joint Exercises, connectedTo, Rules of Engagement>
+<Naval Operations, connectedTo, Rules of Engagement>
+<Operations Planning, connectedTo, Basic Training>
+<Operations Planning, connectedTo, Civil_Military Cooperation>
+<Operations Planning, connectedTo, Intelligence Gathering>
+<Operations Planning, connectedTo, Joint Exercises>
+<Operations Planning, connectedTo, Peacekeeping Missions>
+<Peacekeeping Missions, connectedTo, Basic Training>
+<Rules of Engagement, maps, Medical Support>
+<Space Operations, connectedTo, Rules of Engagement>
+<Specialized Training, commands, Joint Exercises>
+<Specialized Training, connectedTo, Disaster Relief Deployment>
+<Specialized Training, connectedTo, Naval Operations>
+<Surveillance, surveys, Joint Exercises>
+<Targeting, connectedTo, Medical Support>
diff --git a/test/diagrams/scanned_medium/diagrams_291.dot b/test/diagrams/scanned_medium/diagrams_291.dot
new file mode 100644
index 0000000000000000000000000000000000000000..edac3b44efe7738673a0e8ab74fc388ebe48fc87
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_291.dot
@@ -0,0 +1,56 @@
+digraph {
+	rankdir=LR
+	N0 [label="Delay Management" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+	N1 [label="Airworthiness Certification" color="#66BB6A" fillcolor="#E8F5E9" shape=inputoutput style=filled]
+	N2 [label="Pilot Training" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N3 [label="Remote Tower Operations" color="#388E3C" fillcolor="#C8E6C9" shape=multipledocuments style=filled]
+	N4 [label="Fleet Management" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N5 [label="Next_Generation Air Traffic Management" color="#66BB6A" fillcolor="#E8F5E9" shape=rect style=filled]
+	N6 [label="Airport Security Management" color="#66BB6A" fillcolor="#E8F5E9" shape=rect style=filled]
+	N7 [label="Aerospace Engineering" color="#AB47BC" fillcolor="#F3E5F5" shape=box style=filled]
+	N8 [label="Aircraft Manufacturing" color="#AB47BC" fillcolor="#F3E5F5" shape=document style=filled]
+	S1 [label="" color="#388E3C" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#AB47BC" fillcolor="#F3E5F5" 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_In_flight Service {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="In_flight Service"
+		nest0_0 [label="Airspace Management" color="#66BB6A" fillcolor="#E8F5E9" shape=vnode_shape style=filled]
+		nest0_1 [label="Crew Scheduling" color="#388E3C" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+		nest0_2 [label="Security Screening" color="#66BB6A" fillcolor="#E8F5E9" shape=multipledocuments style=filled]
+	}
+	subgraph cluster_Aviation Safety Investigation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Aviation Safety Investigation"
+		nest1_0 [label="Flight Simulation" color="#66BB6A" fillcolor="#E8F5E9" shape=vnode_shape style=filled]
+		nest1_1 [label="Baggage Handling" color="#AB47BC" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+		nest1_2 [label="Passenger Boarding" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#388E3C" penwidth=1.5 style=dashed label="integrates" dir=forward]
+	N7 -> N8 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N4 [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="#66BB6A" penwidth=1.5 style=dashed label="boards" dir=forward]
+	N5 -> nest1_0 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N8 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#388E3C" penwidth=1.5 style=dashed label="audits" dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> S2 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_291.txt b/test/diagrams/scanned_medium/diagrams_291.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7ebcbad1b9f88d99f816a232f049a8ecf3acfd68
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_291.txt
@@ -0,0 +1,21 @@
+<Aerospace Engineering, connectedTo, Aircraft Manufacturing>
+<Airport Security Management, integrates, Aerospace Engineering>
+<Airspace Management, connectedTo, Crew Scheduling>
+<Airworthiness Certification, connectedTo, Airspace Management>
+<Airworthiness Certification, connectedTo, Pilot Training>
+<Airworthiness Certification, connectedTo, Remote Tower Operations>
+<Baggage Handling, boards, Passenger Boarding>
+<Crew Scheduling, connectedTo, Security Screening>
+<Delay Management, connectedTo, Airworthiness Certification>
+<Delay Management, connectedTo, Remote Tower Operations>
+<Fleet Management, connectedTo, Next_Generation Air Traffic Management>
+<Flight Simulation, connectedTo, Baggage Handling>
+<Next_Generation Air Traffic Management, audits, Aerospace Engineering>
+<Next_Generation Air Traffic Management, connectedTo, Aerospace Engineering>
+<Next_Generation Air Traffic Management, connectedTo, Aircraft Manufacturing>
+<Next_Generation Air Traffic Management, connectedTo, Airport Security Management>
+<Next_Generation Air Traffic Management, connectedTo, Flight Simulation>
+<Passenger Boarding, connectedTo, Aircraft Manufacturing>
+<Pilot Training, connectedTo, Remote Tower Operations>
+<Remote Tower Operations, connectedTo, Fleet Management>
+<Security Screening, connectedTo, Fleet Management>
diff --git a/test/diagrams/scanned_medium/diagrams_292.dot b/test/diagrams/scanned_medium/diagrams_292.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7cf8e94e7e565a1e01c576443e292d0a1f9d553f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_292.dot
@@ -0,0 +1,65 @@
+digraph {
+	rankdir=LR
+	N0 [label="Multi_modal Navigation" color="#FFA726" fillcolor="#FFF3E0" shape=inputoutput style=filled]
+	N1 [label="Geocoding" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+	N2 [label="Route Calculation" color="#A1887F" fillcolor="#EFEBE9" shape=diamond style=filled]
+	N3 [label="Augmented Reality Navigation" color="#FFA726" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	N4 [label="Cycle Route Planning" color="#A1887F" fillcolor="#EFEBE9" shape=rect style=filled]
+	N5 [label="Geofencing" color="#AED581" fillcolor="#F0F4C3" shape=ellipse style=filled]
+	N6 [label="Inertial Navigation System" color="#AED581" fillcolor="#F0F4C3" shape=inputoutput style=filled]
+	N7 [label="Celestial Navigation" color="#FFA726" fillcolor="#FFF3E0" shape=inputoutput style=filled]
+	N8 [label="Offline Map Support" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+	N9 [label="Navigation Data Update" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+	N10 [label="Turn_by_Turn Directions" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N11 [label="Real_Time Re_routing" color="#A1887F" fillcolor="#EFEBE9" shape=document style=filled]
+	S0 [label="" color="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFA726" fillcolor="#FFF3E0" 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_Satellite Navigation Systems {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Satellite Navigation Systems"
+		nest0_0 [label="Points of Interest Search" color="#A1887F" fillcolor="#EFEBE9" shape=multipledocuments style=filled]
+		nest0_1 [label="Dead Reckoning" color="#AED581" fillcolor="#F0F4C3" shape=inputoutput style=filled]
+		nest0_2 [label="Speed Calculation" color="#A1887F" fillcolor="#EFEBE9" shape=box style=filled]
+		nest0_3 [label="Traffic Information" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Terrestrial Navigation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Terrestrial Navigation"
+		nest1_0 [label="Reverse Geocoding" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+		nest1_1 [label="Altitude Tracking" color="#FFA726" fillcolor="#FFF3E0" shape=hexagon style=filled]
+		nest1_2 [label="Public Transit Navigation" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid 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="#AED581" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#FFA726" penwidth=1.5 style=dashed label="validates" dir=forward]
+	nest0_3 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> S0 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#FFA726" penwidth=1.5 style=dashed label="alerts" dir=forward]
+	S0 -> N10 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> S1 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#A1887F" penwidth=1.5 style=solid label="identifies" dir=forward]
+	S1 -> N11 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N6 -> M0 [color="#AED581" penwidth=1.5 style=solid label="authenticates" dir=forward]
+	N4 -> M0 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_292.txt b/test/diagrams/scanned_medium/diagrams_292.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a180abdd8a9de591656fa16e66b0dbc01cfa8c9c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_292.txt
@@ -0,0 +1,27 @@
+<Altitude Tracking, connectedTo, Public Transit Navigation>
+<Augmented Reality Navigation, connectedTo, Cycle Route Planning>
+<Celestial Navigation, alerts, Real_Time Re_routing>
+<Celestial Navigation, connectedTo, Navigation Data Update>
+<Celestial Navigation, connectedTo, Offline Map Support>
+<Celestial Navigation, connectedTo, Turn_by_Turn Directions>
+<Celestial Navigation, validates, Points of Interest Search>
+<Cycle Route Planning, connectedTo, Geofencing>
+<Cycle Route Planning, connectedTo, Offline Map Support>
+<Dead Reckoning, connectedTo, Speed Calculation>
+<Geocoding, connectedTo, Route Calculation>
+<Geofencing, connectedTo, Inertial Navigation System>
+<Inertial Navigation System, authenticates, Offline Map Support>
+<Inertial Navigation System, connectedTo, Celestial Navigation>
+<Multi_modal Navigation, connectedTo, Geocoding>
+<Navigation Data Update, connectedTo, Turn_by_Turn Directions>
+<Offline Map Support, connectedTo, Navigation Data Update>
+<Offline Map Support, connectedTo, Real_Time Re_routing>
+<Offline Map Support, identifies, Turn_by_Turn Directions>
+<Points of Interest Search, connectedTo, Dead Reckoning>
+<Public Transit Navigation, connectedTo, Route Calculation>
+<Reverse Geocoding, connectedTo, Altitude Tracking>
+<Route Calculation, connectedTo, Augmented Reality Navigation>
+<Speed Calculation, connectedTo, Traffic Information>
+<Traffic Information, connectedTo, Route Calculation>
+<Turn_by_Turn Directions, connectedTo, Real_Time Re_routing>
+<Turn_by_Turn Directions, connectedTo, Reverse Geocoding>
diff --git a/test/diagrams/scanned_medium/diagrams_293.dot b/test/diagrams/scanned_medium/diagrams_293.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5efb54dfe0e580425a1050a9797d1da405330256
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_293.dot
@@ -0,0 +1,59 @@
+digraph {
+	rankdir=TB
+	N0 [label="Rapid Manufacturing" color="#7E57C2" fillcolor="#EDE7F6" shape=parallelogram style=filled]
+	N1 [label="Medical Device Prototyping" color="#D2D2D2" fillcolor="#F0F0F0" shape=inputoutput style=filled]
+	N2 [label="3D Printed Tooling" color="#FFEB3B" fillcolor="#FFF9C4" shape=parallelogram style=filled]
+	N3 [label="Post_Processing" color="#D2D2D2" fillcolor="#F0F0F0" shape=action style=filled]
+	N4 [label="Selective Laser Sintering" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+	N5 [label="Consumer Product Creation" color="#D2D2D2" fillcolor="#F0F0F0" shape=document style=filled]
+	N6 [label="Additive Manufacturing" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N7 [label="Printing Process" color="#D2D2D2" fillcolor="#F0F0F0" shape=action style=filled]
+	N8 [label="Fused Deposition Modeling" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N9 [label="On_Demand Production" color="#FFEB3B" fillcolor="#FFF9C4" shape=inputoutput style=filled]
+	S1 [label="" color="#7E57C2" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#7E57C2" fillcolor="#EDE7F6" 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_Slicing Software Operation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Slicing Software Operation"
+		nest0_0 [label="Troubleshooting Print Errors" color="#D2D2D2" fillcolor="#F0F0F0" shape=hexagon style=filled]
+		nest0_1 [label="Bioprinting" color="#7E57C2" fillcolor="#EDE7F6" shape=rect style=filled]
+		nest0_2 [label="Sustainable 3D Printing Materials" color="#FFEB3B" fillcolor="#FFF9C4" shape=diamond style=filled]
+		nest0_3 [label="Educational Applications" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	}
+	subgraph cluster_Direct Metal Laser Sintering {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Direct Metal Laser Sintering"
+		nest1_0 [label="Custom Part Production" color="#D2D2D2" fillcolor="#F0F0F0" shape=action style=filled]
+		nest1_1 [label="Support Structure Design" color="#FFEB3B" fillcolor="#FFF9C4" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#7E57C2" penwidth=1.5 style=dashed 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="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N4 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest1_0 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N8 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S1 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#D2D2D2" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_293.txt b/test/diagrams/scanned_medium/diagrams_293.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2a677775243117d2dc7dcd5cfb78fe16a0ca85bf
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_293.txt
@@ -0,0 +1,24 @@
+<3D Printed Tooling, connectedTo, Post_Processing>
+<Additive Manufacturing, connectedTo, Printing Process>
+<Bioprinting, connectedTo, Sustainable 3D Printing Materials>
+<Consumer Product Creation, connectedTo, Additive Manufacturing>
+<Consumer Product Creation, connectedTo, Custom Part Production>
+<Consumer Product Creation, connectedTo, Fused Deposition Modeling>
+<Consumer Product Creation, connectedTo, On_Demand Production>
+<Consumer Product Creation, connectedTo, Printing Process>
+<Custom Part Production, connectedTo, Support Structure Design>
+<Educational Applications, connectedTo, Selective Laser Sintering>
+<Fused Deposition Modeling, connectedTo, On_Demand Production>
+<Medical Device Prototyping, connectedTo, 3D Printed Tooling>
+<Medical Device Prototyping, connectedTo, Consumer Product Creation>
+<Post_Processing, connectedTo, Additive Manufacturing>
+<Post_Processing, connectedTo, Selective Laser Sintering>
+<Printing Process, connectedTo, Fused Deposition Modeling>
+<Rapid Manufacturing, connectedTo, Additive Manufacturing>
+<Rapid Manufacturing, connectedTo, Consumer Product Creation>
+<Rapid Manufacturing, connectedTo, Medical Device Prototyping>
+<Selective Laser Sintering, connectedTo, Consumer Product Creation>
+<Selective Laser Sintering, connectedTo, Troubleshooting Print Errors>
+<Support Structure Design, connectedTo, Fused Deposition Modeling>
+<Sustainable 3D Printing Materials, connectedTo, Educational Applications>
+<Troubleshooting Print Errors, connectedTo, Bioprinting>
diff --git a/test/diagrams/scanned_medium/diagrams_294.dot b/test/diagrams/scanned_medium/diagrams_294.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e88da6f597f46a967adbab9cb9c2498017b0ef4b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_294.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=LR
+	N0 [label="Bio_Nanotechnology Interface" color="#AED581" fillcolor="#F0F4C3" shape=predefinedprocess style=filled]
+	N1 [label="Risk Assessment of Nanomaterials" color="#AED581" fillcolor="#F0F4C3" shape=parallelogram style=filled]
+	N2 [label="Lab_on_a_Chip Devices" color="#AED581" fillcolor="#F0F4C3" shape=multipledocuments style=filled]
+	N3 [label="Graphene Production" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+	N4 [label="Catalysis at Nanoscale" color="#AED581" fillcolor="#F0F4C3" shape=parallelogram style=filled]
+	N5 [label="Solar Cell Efficiency Enhancement" color="#80DDEA" fillcolor="#D3F7F9" shape=diamond style=filled]
+	N6 [label="Carbon Nanotube Synthesis" color="#AED581" fillcolor="#F0F4C3" shape=predefinedprocess style=filled]
+	N7 [label="Transmission Electron Microscopy" color="#AED581" fillcolor="#F0F4C3" shape=action style=filled]
+	N8 [label="Ethical Implications of Nanotech" color="#AED581" fillcolor="#F0F4C3" shape=document style=filled]
+	N9 [label="Atomic Force Microscopy" color="#80DDEA" fillcolor="#D3F7F9" shape=predefinedprocess style=filled]
+	N10 [label="Nanofabrication Techniques" color="#80DDEA" fillcolor="#D3F7F9" shape=preparation style=filled]
+	N11 [label="X_ray Diffraction" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+	N12 [label="Nanoscale Imaging" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+	N13 [label="Nanotoxicology" color="#66BB6A" fillcolor="#E8F5E9" shape=rect style=filled]
+	N14 [label="Nanomaterial Synthesis" color="#80DDEA" fillcolor="#D3F7F9" shape=inputoutput style=filled]
+	N15 [label="Nanoparticle Characterization" color="#AED581" fillcolor="#F0F4C3" shape=predefinedprocess style=filled]
+	N16 [label="Nanoelectronics" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N17 [label="Nanocomposites" color="#80DDEA" fillcolor="#D3F7F9" shape=inputoutput style=filled]
+	N18 [label="Spintronics" color="#66BB6A" fillcolor="#E8F5E9" shape=rect style=filled]
+	S0 [label="" color="#AED581" fillcolor="#F0F4C3" 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]
+	S2 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#AED581" fillcolor="#F0F4C3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Spectroscopy {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Spectroscopy"
+		nest0_0 [label="Advanced Materials Research" color="#80DDEA" fillcolor="#D3F7F9" shape=database style=filled]
+		nest0_1 [label="Photovoltaics" color="#AED581" fillcolor="#F0F4C3" shape=diamond style=filled]
+	}
+	subgraph cluster_Molecular Self_Assembly {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Molecular Self_Assembly"
+		nest1_0 [label="Nanomedicine Development" color="#AED581" fillcolor="#F0F4C3" shape=database style=filled]
+		nest1_1 [label="Food Packaging Improvement" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#80DDEA" penwidth=1.5 style=solid label="complies" dir=forward]
+	N4 -> N5 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="characterizes" dir=forward]
+	N6 -> N7 [color="#66BB6A" penwidth=1.5 style=solid label="monitors" dir=forward]
+	N7 -> N8 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N17 -> N18 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest0_0 [color="#AED581" penwidth=1.5 style=dashed label="secures" dir=forward]
+	nest0_1 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N4 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N14 -> S0 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N16 [color="#80DDEA" penwidth=1.5 style=dashed label="designs" dir=forward]
+	S0 -> N18 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N17 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#80DDEA" penwidth=1.5 style=dashed label="develops" dir=forward]
+	N11 -> S2 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	S2 -> N16 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S2 -> N14 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N11 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_294.txt b/test/diagrams/scanned_medium/diagrams_294.txt
new file mode 100644
index 0000000000000000000000000000000000000000..551bcffd7470e4772a7993b6f9f6d16eff0f898a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_294.txt
@@ -0,0 +1,34 @@
+<Advanced Materials Research, connectedTo, Photovoltaics>
+<Advanced Materials Research, partOf, Advanced Materials Research>
+<Atomic Force Microscopy, connectedTo, Nanofabrication Techniques>
+<Atomic Force Microscopy, connectedTo, Nanomedicine Development>
+<Bio_Nanotechnology Interface, connectedTo, Risk Assessment of Nanomaterials>
+<Carbon Nanotube Synthesis, monitors, Transmission Electron Microscopy>
+<Catalysis at Nanoscale, connectedTo, Solar Cell Efficiency Enhancement>
+<Ethical Implications of Nanotech, connectedTo, Atomic Force Microscopy>
+<Food Packaging Improvement, connectedTo, Catalysis at Nanoscale>
+<Graphene Production, complies, Catalysis at Nanoscale>
+<Lab_on_a_Chip Devices, connectedTo, Graphene Production>
+<Nanocomposites, connectedTo, Spintronics>
+<Nanoelectronics, connectedTo, Nanocomposites>
+<Nanofabrication Techniques, connectedTo, X_ray Diffraction>
+<Nanomaterial Synthesis, connectedTo, Nanocomposites>
+<Nanomaterial Synthesis, connectedTo, Nanoparticle Characterization>
+<Nanomaterial Synthesis, connectedTo, Spintronics>
+<Nanomaterial Synthesis, designs, Nanoelectronics>
+<Nanomedicine Development, connectedTo, Food Packaging Improvement>
+<Nanoparticle Characterization, connectedTo, Nanoelectronics>
+<Nanoscale Imaging, connectedTo, Nanotoxicology>
+<Nanotoxicology, connectedTo, Nanomaterial Synthesis>
+<Photovoltaics, connectedTo, X_ray Diffraction>
+<Photovoltaics, partOf, Photovoltaics>
+<Risk Assessment of Nanomaterials, connectedTo, Lab_on_a_Chip Devices>
+<Risk Assessment of Nanomaterials, secures, Advanced Materials Research>
+<Solar Cell Efficiency Enhancement, characterizes, Carbon Nanotube Synthesis>
+<Solar Cell Efficiency Enhancement, connectedTo, Ethical Implications of Nanotech>
+<Solar Cell Efficiency Enhancement, connectedTo, Nanomaterial Synthesis>
+<Solar Cell Efficiency Enhancement, develops, Nanoelectronics>
+<Transmission Electron Microscopy, connectedTo, Ethical Implications of Nanotech>
+<X_ray Diffraction, connectedTo, Nanoelectronics>
+<X_ray Diffraction, connectedTo, Nanomaterial Synthesis>
+<X_ray Diffraction, connectedTo, Nanoscale Imaging>
diff --git a/test/diagrams/scanned_medium/diagrams_295.dot b/test/diagrams/scanned_medium/diagrams_295.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cdf177f1fc059a052307e2dee00f42cb20bb15cb
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_295.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=TB
+	N0 [label="Quantum Annealing" color="#2196F3" fillcolor="#BBDEFB" shape=inputoutput style=filled]
+	N1 [label="Quantum Supremacy Claims" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+	N2 [label="Quantum Cryptography" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	N3 [label="Decoherence Mitigation" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N4 [label="Cryogenic Systems for Qubits" color="#BCB88A" fillcolor="#F5F5DC" shape=preparation style=filled]
+	N5 [label="Quantum Algorithm Development" color="#FFB2A5" fillcolor="#FFDCD6" shape=database style=filled]
+	N6 [label="Quantum Computing Benchmarking" color="#BCB88A" fillcolor="#F5F5DC" shape=ellipse style=filled]
+	N7 [label="Topological Qubits" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N8 [label="Quantum Programming Languages" color="#BCB88A" fillcolor="#F5F5DC" shape=diamond style=filled]
+	N9 [label="Quantum Bit Design" color="#2196F3" fillcolor="#BBDEFB" shape=action style=filled]
+	N10 [label="Material Science Simulations" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N11 [label="Post_Quantum Cryptography" color="#BCB88A" fillcolor="#F5F5DC" shape=rect style=filled]
+	N12 [label="Quantum Cloud Computing Services" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+	N13 [label="Quantum Hardware Control" color="#2196F3" fillcolor="#BBDEFB" shape=hexagon style=filled]
+	N14 [label="Quantum Circuit Design" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N15 [label="Quantum Teleportation Research" color="#BCB88A" fillcolor="#F5F5DC" shape=rect style=filled]
+	N16 [label="Quantum Software Development Kit" color="#BCB88A" fillcolor="#F5F5DC" shape=preparation style=filled]
+	S0 [label="" color="#2196F3" fillcolor="#BBDEFB" 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="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Photonic Qubits {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Photonic Qubits"
+		nest0_0 [label="Quantum Processor Fabrication" color="#FFB2A5" fillcolor="#FFDCD6" shape=multipledocuments style=filled]
+		nest0_1 [label="Quantum Sensing" color="#2196F3" fillcolor="#BBDEFB" shape=document style=filled]
+		nest0_2 [label="Quantum Communication Protocols" color="#BCB88A" fillcolor="#F5F5DC" shape=predefinedprocess style=filled]
+		nest0_3 [label="Quantum Machine Learning" color="#FFB2A5" fillcolor="#FFDCD6" shape=diamond style=filled]
+	}
+	subgraph cluster_Quantum Entanglement Generation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Quantum Entanglement Generation"
+		nest1_0 [label="Quantum Key Distribution" color="#BCB88A" fillcolor="#F5F5DC" shape=document style=filled]
+		nest1_1 [label="Superconducting Qubits" color="#FFB2A5" fillcolor="#FFDCD6" shape=document style=filled]
+	}
+	N0 -> N1 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#BCB88A" penwidth=1.5 style=solid label="innovates" dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFB2A5" penwidth=1.5 style=dashed label="factors" dir=forward]
+	N9 -> N10 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#FFB2A5" 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]
+	nest0_0 -> nest0_1 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N13 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N15 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#2196F3" penwidth=1.5 style=solid label="develops" dir=forward]
+	nest1_1 -> N12 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N16 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N15 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N7 -> S1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M0 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N15 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=dashed label="entangles" dir=forward]
+	M1 -> N6 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_296.dot b/test/diagrams/scanned_medium/diagrams_296.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4591e265b3a909d298fafa63f827bc67615ed54e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_296.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=LR
+	N0 [label="Facial Recognition in AR or VR" color="#6FE1D5" fillcolor="#C9EFEC" shape=action style=filled]
+	N1 [label="Multiplayer Experience Design" color="#6FE1D5" fillcolor="#C9EFEC" shape=database style=filled]
+	N2 [label="Hardware Prototyping" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+	N3 [label="Hand Tracking and Interaction" color="#66BB6A" fillcolor="#E8F5E9" shape=inputoutput style=filled]
+	N4 [label="Industrial Maintenance Support" color="#66BB6A" fillcolor="#E8F5E9" shape=vnode_shape style=filled]
+	N5 [label="Neuro_VR Interfaces" color="#6FE1D5" fillcolor="#C9EFEC" shape=box style=filled]
+	N6 [label="Medical Applications" color="#EAEFA5" fillcolor="#FDFCEB" shape=parallelogram style=filled]
+	N7 [label="User Experience Testing" color="#66BB6A" fillcolor="#E8F5E9" shape=inputoutput style=filled]
+	N8 [label="Gesture Recognition" color="#66BB6A" fillcolor="#E8F5E9" shape=database style=filled]
+	N9 [label="Augmented Reality App Development" color="#66BB6A" fillcolor="#E8F5E9" shape=rect style=filled]
+	N10 [label="Latency Reduction" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N11 [label="Performance Optimization" color="#66BB6A" fillcolor="#E8F5E9" shape=document style=filled]
+	N12 [label="Software Development Kit Integration" color="#EAEFA5" fillcolor="#FDFCEB" shape=rectangle style=filled]
+	S0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#6FE1D5" fillcolor="#C9EFEC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#6FE1D5" fillcolor="#C9EFEC" 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]
+	M2 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Eye Tracking {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Eye Tracking"
+		nest0_0 [label="Live Event Streaming in VR" color="#EAEFA5" fillcolor="#FDFCEB" shape=preparation style=filled]
+		nest0_1 [label="Headset Development" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+		nest0_2 [label="AR for Navigation" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+		nest0_3 [label="Training Simulations" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	}
+	subgraph cluster_Wearable AR Devices {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Wearable AR Devices"
+		nest1_0 [label="Field of View Optimization" color="#6FE1D5" fillcolor="#C9EFEC" shape=ellipse style=filled]
+		nest1_1 [label="Architectural Visualization" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+		nest1_2 [label="Virtual Tourism Experiences" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+		nest1_3 [label="Virtual Reality Game Development" color="#6FE1D5" fillcolor="#C9EFEC" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=solid label="overlays" dir=forward]
+	nest0_1 -> nest0_2 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N9 [color="#EAEFA5" 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="#66BB6A" penwidth=1.5 style=dashed label="renders" dir=forward]
+	nest1_2 -> nest1_3 [color="#66BB6A" penwidth=1.5 style=dashed label="maps" dir=forward]
+	N4 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N4 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> S1 [color="#6FE1D5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	M0 -> N9 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#66BB6A" penwidth=1.5 style=solid label="simulates" 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 -> N6 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#6FE1D5" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N3 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_296.txt b/test/diagrams/scanned_medium/diagrams_296.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5eca1092f37efd4b27370f3629f5a96acb1d7172
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_296.txt
@@ -0,0 +1,35 @@
+<AR for Navigation, connectedTo, Training Simulations>
+<Architectural Visualization, renders, Virtual Tourism Experiences>
+<Augmented Reality App Development, connectedTo, Latency Reduction>
+<Augmented Reality App Development, connectedTo, Live Event Streaming in VR>
+<Augmented Reality App Development, connectedTo, Performance Optimization>
+<Augmented Reality App Development, connectedTo, Software Development Kit Integration>
+<Facial Recognition in AR or VR, connectedTo, Augmented Reality App Development>
+<Facial Recognition in AR or VR, connectedTo, Hand Tracking and Interaction>
+<Facial Recognition in AR or VR, connectedTo, Medical Applications>
+<Facial Recognition in AR or VR, connectedTo, Multiplayer Experience Design>
+<Field of View Optimization, connectedTo, Architectural Visualization>
+<Gesture Recognition, connectedTo, Augmented Reality App Development>
+<Hand Tracking and Interaction, connectedTo, Augmented Reality App Development>
+<Hand Tracking and Interaction, connectedTo, Industrial Maintenance Support>
+<Hardware Prototyping, connectedTo, Hand Tracking and Interaction>
+<Hardware Prototyping, connectedTo, Medical Applications>
+<Headset Development, connectedTo, AR for Navigation>
+<Industrial Maintenance Support, connectedTo, Field of View Optimization>
+<Industrial Maintenance Support, connectedTo, Neuro_VR Interfaces>
+<Industrial Maintenance Support, connectedTo, Performance Optimization>
+<Industrial Maintenance Support, connectedTo, Software Development Kit Integration>
+<Latency Reduction, connectedTo, Performance Optimization>
+<Live Event Streaming in VR, overlays, Headset Development>
+<Medical Applications, connectedTo, Augmented Reality App Development>
+<Medical Applications, connectedTo, User Experience Testing>
+<Multiplayer Experience Design, connectedTo, Augmented Reality App Development>
+<Multiplayer Experience Design, connectedTo, Hand Tracking and Interaction>
+<Multiplayer Experience Design, connectedTo, Hardware Prototyping>
+<Multiplayer Experience Design, simulates, Medical Applications>
+<Neuro_VR Interfaces, connectedTo, Medical Applications>
+<Performance Optimization, connectedTo, Software Development Kit Integration>
+<Training Simulations, connectedTo, Augmented Reality App Development>
+<User Experience Testing, connectedTo, Gesture Recognition>
+<Virtual Reality Game Development, connectedTo, Industrial Maintenance Support>
+<Virtual Tourism Experiences, maps, Virtual Reality Game Development>
diff --git a/test/diagrams/scanned_medium/diagrams_297.dot b/test/diagrams/scanned_medium/diagrams_297.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b4a39a5774aed47abc44eb4643502fbad3bc9152
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_297.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=RL
+	N0 [label="Marketing and Promotion" color="#607D8B" fillcolor="#CFD8DC" shape=inputoutput style=filled]
+	N1 [label="Asset Creation" color="#8C9EFF" fillcolor="#D3D7EB" shape=box style=filled]
+	N2 [label="Narrative Design" color="#AABEC6" fillcolor="#E0E6E9" shape=predefinedprocess style=filled]
+	N3 [label="Augmented Reality Gaming" color="#607D8B" fillcolor="#CFD8DC" shape=inputoutput style=filled]
+	N4 [label="Programming" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N5 [label="Esports Event Organization" color="#607D8B" fillcolor="#CFD8DC" shape=action style=filled]
+	N6 [label="Player Feedback Integration" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+	N7 [label="Virtual Reality Gaming" color="#607D8B" fillcolor="#CFD8DC" shape=preparation style=filled]
+	N8 [label="Network Code Optimization" color="#8C9EFF" fillcolor="#D3D7EB" shape=diamond style=filled]
+	N9 [label="Voice Acting" color="#AABEC6" fillcolor="#E0E6E9" shape=hexagon style=filled]
+	N10 [label="Localization" color="#8C9EFF" fillcolor="#D3D7EB" shape=parallelogram style=filled]
+	N11 [label="Motion Capture" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	S0 [label="" color="#8C9EFF" fillcolor="#D3D7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#607D8B" fillcolor="#CFD8DC" 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]
+	M1 [label="" color="#8C9EFF" fillcolor="#D3D7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Game Balancing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Game Balancing"
+		nest0_0 [label="Monetization Strategy" color="#607D8B" fillcolor="#CFD8DC" shape=vnode_shape style=filled]
+		nest0_1 [label="In_Game Economy Design" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+		nest0_2 [label="Console Game Development" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+		nest0_3 [label="Level Design" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	}
+	subgraph cluster_User Experience Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="User Experience Design"
+		nest1_0 [label="Community Management" color="#8C9EFF" fillcolor="#D3D7EB" shape=rect style=filled]
+		nest1_1 [label="Game Analytics" color="#607D8B" fillcolor="#CFD8DC" shape=box style=filled]
+		nest1_2 [label="Game Performance Optimization" color="#AABEC6" fillcolor="#E0E6E9" shape=database style=filled]
+		nest1_3 [label="Game Publishing" color="#607D8B" fillcolor="#CFD8DC" shape=database style=filled]
+	}
+	N0 -> N1 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N1 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#AABEC6" penwidth=1.5 style=solid label="monetizes" dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#607D8B" penwidth=1.5 style=solid label="interacts" dir=forward]
+	nest1_3 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N4 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S2 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#607D8B" penwidth=1.5 style=dashed label="broadcasts" dir=forward]
+	S2 -> N9 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_297.txt b/test/diagrams/scanned_medium/diagrams_297.txt
new file mode 100644
index 0000000000000000000000000000000000000000..218b5c4472d6dfac2eae54b33538e9275b56367c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_297.txt
@@ -0,0 +1,33 @@
+<Asset Creation, connectedTo, Augmented Reality Gaming>
+<Asset Creation, connectedTo, Esports Event Organization>
+<Asset Creation, connectedTo, Localization>
+<Asset Creation, connectedTo, Narrative Design>
+<Asset Creation, connectedTo, Network Code Optimization>
+<Asset Creation, connectedTo, Player Feedback Integration>
+<Asset Creation, interacts, Community Management>
+<Augmented Reality Gaming, connectedTo, Programming>
+<Community Management, connectedTo, Game Analytics>
+<Console Game Development, connectedTo, Level Design>
+<Esports Event Organization, connectedTo, Player Feedback Integration>
+<Game Analytics, monetizes, Game Performance Optimization>
+<Game Performance Optimization, connectedTo, Game Publishing>
+<Game Publishing, connectedTo, Localization>
+<In_Game Economy Design, connectedTo, Console Game Development>
+<Level Design, connectedTo, Asset Creation>
+<Localization, connectedTo, Motion Capture>
+<Marketing and Promotion, connectedTo, Asset Creation>
+<Marketing and Promotion, connectedTo, Augmented Reality Gaming>
+<Marketing and Promotion, connectedTo, Motion Capture>
+<Marketing and Promotion, connectedTo, Programming>
+<Monetization Strategy, connectedTo, In_Game Economy Design>
+<Narrative Design, connectedTo, Augmented Reality Gaming>
+<Network Code Optimization, connectedTo, Voice Acting>
+<Player Feedback Integration, connectedTo, Virtual Reality Gaming>
+<Programming, broadcasts, Localization>
+<Programming, connectedTo, Esports Event Organization>
+<Programming, connectedTo, Motion Capture>
+<Programming, connectedTo, Virtual Reality Gaming>
+<Programming, connectedTo, Voice Acting>
+<Virtual Reality Gaming, connectedTo, Monetization Strategy>
+<Virtual Reality Gaming, connectedTo, Network Code Optimization>
+<Voice Acting, connectedTo, Localization>
diff --git a/test/diagrams/scanned_medium/diagrams_298.dot b/test/diagrams/scanned_medium/diagrams_298.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a26278d00da69e504c0a97bc89bcb8ff845a6248
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_298.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=TB
+	N0 [label="Digital Audio Workstation Operation" color="#A1887F" fillcolor="#EFEBE9" shape=document style=filled]
+	N1 [label="Music Publishing" color="#A1887F" fillcolor="#EFEBE9" shape=multipledocuments style=filled]
+	N2 [label="Crowdfunding for Music Projects" color="#A1887F" fillcolor="#EFEBE9" shape=action style=filled]
+	N3 [label="Sampling" color="#A1887F" fillcolor="#EFEBE9" shape=diamond style=filled]
+	N4 [label="Music Production" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+	N5 [label="Mixing" color="#FFD54F" fillcolor="#FFF8E1" shape=rect style=filled]
+	N6 [label="Music Licensing" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N7 [label="Music Therapy" color="#A1887F" fillcolor="#EFEBE9" shape=preparation style=filled]
+	N8 [label="Audio Engineering" color="#FFD54F" fillcolor="#FFF8E1" shape=multipledocuments style=filled]
+	N9 [label="Performance" color="#A1887F" fillcolor="#EFEBE9" shape=diamond style=filled]
+	N10 [label="Live Sound Engineering" color="#A1887F" fillcolor="#EFEBE9" shape=ellipse style=filled]
+	N11 [label="Fan Engagement Strategy" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N12 [label="A&R" color="#A1887F" fillcolor="#EFEBE9" shape=action style=filled]
+	N13 [label="Recording" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+	N14 [label="Music Video Production" color="#FFD54F" fillcolor="#FFF8E1" shape=inputoutput style=filled]
+	N15 [label="Copyright Management" color="#A1887F" fillcolor="#EFEBE9" shape=parallelogram style=filled]
+	N16 [label="Instrumental Performance" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+	N17 [label="Music Distribution" color="#FBC02D" fillcolor="#FFFDE7" shape=document style=filled]
+	S0 [label="" color="#FFD54F" fillcolor="#FFF8E1" 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]
+	M0 [label="" color="#FBC02D" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#A1887F" fillcolor="#EFEBE9" 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="Music Education" color="#A1887F" fillcolor="#EFEBE9" shape=predefinedprocess style=filled]
+		nest0_1 [label="Sound Design for Media" color="#A1887F" fillcolor="#EFEBE9" shape=box style=filled]
+		nest0_2 [label="Music Theory Analysis" color="#FBC02D" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+		nest0_3 [label="Artist Management" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	}
+	subgraph cluster_Record Label Operations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Record Label Operations"
+		nest1_0 [label="Vocal Performance" color="#FFD54F" fillcolor="#FFF8E1" shape=action style=filled]
+		nest1_1 [label="Lyric Writing" color="#A1887F" fillcolor="#EFEBE9" shape=rectangle style=filled]
+	}
+	N0 -> N1 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FBC02D" penwidth=1.5 style=solid label="transcribes" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="markets" dir=forward]
+	N10 -> N11 [color="#FFD54F" 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=solid dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#FFD54F" 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=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N8 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N15 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> S1 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#A1887F" penwidth=1.5 style=dashed label="engineers" dir=forward]
+	M0 -> N3 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N11 -> M1 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M1 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_298.txt b/test/diagrams/scanned_medium/diagrams_298.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d591e5e9d984dc96b9224cab55878fe733e4cc60
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_298.txt
@@ -0,0 +1,38 @@
+<A&R, connectedTo, Recording>
+<Artist Management, connectedTo, Performance>
+<Artist Management, partOf, Artist Management>
+<Audio Engineering, connectedTo, Performance>
+<Copyright Management, connectedTo, Instrumental Performance>
+<Crowdfunding for Music Projects, connectedTo, Sampling>
+<Digital Audio Workstation Operation, connectedTo, Music Publishing>
+<Digital Audio Workstation Operation, connectedTo, Sampling>
+<Fan Engagement Strategy, connectedTo, A&R>
+<Fan Engagement Strategy, connectedTo, Copyright Management>
+<Instrumental Performance, connectedTo, Music Distribution>
+<Live Sound Engineering, connectedTo, Fan Engagement Strategy>
+<Lyric Writing, connectedTo, Audio Engineering>
+<Mixing, connectedTo, Copyright Management>
+<Mixing, connectedTo, Live Sound Engineering>
+<Mixing, connectedTo, Music Licensing>
+<Mixing, connectedTo, Recording>
+<Music Education, connectedTo, Sound Design for Media>
+<Music Education, partOf, Music Education>
+<Music Licensing, connectedTo, Music Education>
+<Music Licensing, transcribes, Music Therapy>
+<Music Production, connectedTo, Mixing>
+<Music Production, connectedTo, Vocal Performance>
+<Music Publishing, connectedTo, Crowdfunding for Music Projects>
+<Music Publishing, engineers, Sampling>
+<Music Theory Analysis, connectedTo, Artist Management>
+<Music Theory Analysis, partOf, Music Theory Analysis>
+<Music Therapy, connectedTo, Audio Engineering>
+<Music Video Production, connectedTo, Copyright Management>
+<Performance, connectedTo, Copyright Management>
+<Performance, connectedTo, Music Video Production>
+<Performance, connectedTo, Recording>
+<Performance, markets, Live Sound Engineering>
+<Recording, connectedTo, Music Video Production>
+<Sampling, connectedTo, Music Production>
+<Sound Design for Media, connectedTo, Music Theory Analysis>
+<Sound Design for Media, partOf, Sound Design for Media>
+<Vocal Performance, connectedTo, Lyric Writing>
diff --git a/test/diagrams/scanned_medium/diagrams_299.dot b/test/diagrams/scanned_medium/diagrams_299.dot
new file mode 100644
index 0000000000000000000000000000000000000000..dec3fba3cdf5e464c9eff47c102ce7494d4d663d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_299.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=LR
+	N0 [label="Distribution Strategy" color="#CDDC39" fillcolor="#E6EE9C" shape=predefinedprocess style=filled]
+	N1 [label="Script Development" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N2 [label="Insurance Management" color="#CDDC39" fillcolor="#E6EE9C" shape=hexagon style=filled]
+	N3 [label="Visual Effects" color="#A188DB" fillcolor="#DED7F0" shape=document style=filled]
+	N4 [label="Sound Recording" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N5 [label="Archiving and Preservation" color="#CDDC39" fillcolor="#E6EE9C" shape=rect style=filled]
+	N6 [label="Lighting Design" color="#A188DB" fillcolor="#DED7F0" shape=rectangle style=filled]
+	N7 [label="Production Accounting" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+	N8 [label="Location Scouting" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N9 [label="Legal Compliance" color="#A188DB" fillcolor="#DED7F0" shape=hexagon style=filled]
+	N10 [label="Talent Negotiation" color="#A188DB" fillcolor="#DED7F0" shape=action style=filled]
+	N11 [label="Makeup and Hair Design" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	N12 [label="Production Scheduling" color="#2196F3" fillcolor="#BBDEFB" shape=inputoutput style=filled]
+	S0 [label="" color="#CDDC39" fillcolor="#E6EE9C" 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]
+	M1 [label="" color="#CDDC39" fillcolor="#E6EE9C" 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_Audience Research {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Audience Research"
+		nest0_0 [label="Green Production Practices" color="#CDDC39" fillcolor="#E6EE9C" shape=predefinedprocess style=filled]
+		nest0_1 [label="Costume Design" color="#CDDC39" fillcolor="#E6EE9C" shape=inputoutput style=filled]
+		nest0_2 [label="Screenwriting Workshops" color="#A188DB" fillcolor="#DED7F0" shape=diamond style=filled]
+	}
+	subgraph cluster_Film Festival Submission {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Film Festival Submission"
+		nest1_0 [label="Digital Asset Management" color="#2196F3" fillcolor="#BBDEFB" shape=predefinedprocess style=filled]
+		nest1_1 [label="Casting" color="#CDDC39" fillcolor="#E6EE9C" shape=preparation style=filled]
+		nest1_2 [label="Art Direction" color="#2196F3" fillcolor="#BBDEFB" 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="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#A188DB" penwidth=1.5 style=dashed label="scripts" dir=forward]
+	N5 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N2 [color="#000000" penwidth=1.5 style=solid label="protects" dir=forward]
+	nest1_0 -> nest1_1 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=dashed label="casts" dir=forward]
+	N2 -> nest1_0 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N12 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#CDDC39" penwidth=1.5 style=dashed label="budgets" dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S1 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#2196F3" penwidth=1.5 style=dashed label="dresses" dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed label="finances" dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N12 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N11 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_299.txt b/test/diagrams/scanned_medium/diagrams_299.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6e79a77b3d759f54d7d6b02412e32a50490b1ea1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_299.txt
@@ -0,0 +1,34 @@
+<Archiving and Preservation, connectedTo, Green Production Practices>
+<Archiving and Preservation, connectedTo, Legal Compliance>
+<Archiving and Preservation, connectedTo, Lighting Design>
+<Archiving and Preservation, connectedTo, Production Accounting>
+<Archiving and Preservation, dresses, Production Scheduling>
+<Archiving and Preservation, finances, Talent Negotiation>
+<Art Direction, connectedTo, Production Scheduling>
+<Casting, casts, Art Direction>
+<Costume Design, scripts, Screenwriting Workshops>
+<Digital Asset Management, connectedTo, Casting>
+<Distribution Strategy, connectedTo, Makeup and Hair Design>
+<Distribution Strategy, connectedTo, Production Scheduling>
+<Distribution Strategy, connectedTo, Script Development>
+<Green Production Practices, connectedTo, Costume Design>
+<Insurance Management, connectedTo, Digital Asset Management>
+<Insurance Management, connectedTo, Makeup and Hair Design>
+<Insurance Management, connectedTo, Production Scheduling>
+<Insurance Management, connectedTo, Visual Effects>
+<Legal Compliance, connectedTo, Talent Negotiation>
+<Lighting Design, connectedTo, Production Accounting>
+<Location Scouting, connectedTo, Legal Compliance>
+<Location Scouting, connectedTo, Makeup and Hair Design>
+<Location Scouting, connectedTo, Production Scheduling>
+<Makeup and Hair Design, connectedTo, Production Scheduling>
+<Production Accounting, connectedTo, Location Scouting>
+<Screenwriting Workshops, protects, Insurance Management>
+<Script Development, budgets, Archiving and Preservation>
+<Script Development, connectedTo, Insurance Management>
+<Script Development, connectedTo, Location Scouting>
+<Script Development, connectedTo, Production Scheduling>
+<Sound Recording, connectedTo, Archiving and Preservation>
+<Talent Negotiation, connectedTo, Makeup and Hair Design>
+<Visual Effects, connectedTo, Makeup and Hair Design>
+<Visual Effects, connectedTo, Sound Recording>
diff --git a/test/diagrams/scanned_medium/diagrams_3.dot b/test/diagrams/scanned_medium/diagrams_3.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3426c7d42a51ec8b913c62db9345f98bad4ab62c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_3.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=LR
+	N0 [label="Painting" color="#FFB2A5" fillcolor="#FFDCD6" shape=inputoutput style=filled]
+	N1 [label="Tool Path Generation" color="#E0E0E0" fillcolor="#EBEBEB" shape=rectangle style=filled]
+	N2 [label="Robotics Integration" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N3 [label="Safety Audit" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N4 [label="Supply Chain Synchronization" color="#FFB2A5" fillcolor="#FFDCD6" shape=database style=filled]
+	N5 [label="Ergonomics Assessment" color="#4285F4" fillcolor="#D0E0F8" shape=diamond style=filled]
+	N6 [label="Inspection" color="#FFB2A5" fillcolor="#FFDCD6" shape=document style=filled]
+	N7 [label="Raw Material" color="#4285F4" fillcolor="#D0E0F8" shape=preparation style=filled]
+	N8 [label="Environmental Compliance" color="#E0E0E0" fillcolor="#EBEBEB" shape=document style=filled]
+	N0 -> N1 [color="#E0E0E0" penwidth=1.5 style=solid label="stores" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="assembles" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#E0E0E0" penwidth=1.5 style=dashed label="transports" dir=forward]
+	N4 -> N5 [color="#E0E0E0" penwidth=1.5 style=dashed label="cleans" dir=forward]
+	N5 -> N6 [color="#FFB2A5" penwidth=1.5 style=dashed label="audits" dir=forward]
+	N6 -> N7 [color="#E0E0E0" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_3.txt b/test/diagrams/scanned_medium/diagrams_3.txt
new file mode 100644
index 0000000000000000000000000000000000000000..682317b0d93e6ca6184ace03f98f62d8ed3e3f63
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_3.txt
@@ -0,0 +1,9 @@
+<Ergonomics Assessment, audits, Inspection>
+<Inspection, analyzes, Raw Material>
+<Inspection, connectedTo, Safety Audit>
+<Painting, stores, Tool Path Generation>
+<Raw Material, connectedTo, Environmental Compliance>
+<Robotics Integration, connectedTo, Safety Audit>
+<Safety Audit, transports, Supply Chain Synchronization>
+<Supply Chain Synchronization, cleans, Ergonomics Assessment>
+<Tool Path Generation, assembles, Robotics Integration>
diff --git a/test/diagrams/scanned_medium/diagrams_30.dot b/test/diagrams/scanned_medium/diagrams_30.dot
new file mode 100644
index 0000000000000000000000000000000000000000..88f90fe28edbf12fca48ef592e5bc9adad0718a1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_30.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=TB
+	N0 [label="Waste Reduction" color="#AED581" fillcolor="#F0F4C3" shape=hexagon style=filled]
+	N1 [label="Regulatory Compliance" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N2 [label="Beverage Production" color="#AED581" fillcolor="#F0F4C3" shape=parallelogram style=filled]
+	N3 [label="Catering Operations" color="#92C79A" fillcolor="#E8F0EA" shape=diamond style=filled]
+	N4 [label="Restaurant Reservation System" color="#92C79A" fillcolor="#E8F0EA" shape=vnode_shape style=filled]
+	N5 [label="Allergen Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N6 [label="Brewing" color="#A2D0FF" fillcolor="#E8F0FF" shape=preparation style=filled]
+	N7 [label="Food Preservation" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	N0 -> N1 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#A2D0FF" penwidth=1.5 style=dashed label="prepares" dir=forward]
+	N2 -> N3 [color="#AED581" penwidth=1.5 style=dashed label="chills" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="promotes" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="complies" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="nutrifies" dir=forward]
+	N6 -> N7 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N5 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_30.txt b/test/diagrams/scanned_medium/diagrams_30.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cb2195945043ab75374bc92e61d0497128e6c52d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_30.txt
@@ -0,0 +1,8 @@
+<Allergen Management, nutrifies, Brewing>
+<Beverage Production, chills, Catering Operations>
+<Brewing, connectedTo, Food Preservation>
+<Catering Operations, promotes, Restaurant Reservation System>
+<Food Preservation, connectedTo, Allergen Management>
+<Regulatory Compliance, prepares, Beverage Production>
+<Restaurant Reservation System, complies, Allergen Management>
+<Waste Reduction, connectedTo, Regulatory Compliance>
diff --git a/test/diagrams/scanned_medium/diagrams_300.dot b/test/diagrams/scanned_medium/diagrams_300.dot
new file mode 100644
index 0000000000000000000000000000000000000000..947f44230bd6be0dba8214452dd7063cb8e2840e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_300.dot
@@ -0,0 +1,73 @@
+digraph {
+	rankdir=RL
+	N0 [label="Interactive Content Development" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N1 [label="Search Engine Optimization" color="#4DB6AC" fillcolor="#E0F2F1" shape=diamond style=filled]
+	N2 [label="Distribution Planning" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	N3 [label="Graphic Design" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N4 [label="Branding" color="#3F51B5" fillcolor="#C5CAE9" shape=ellipse style=filled]
+	N5 [label="Plagiarism Checking" color="#4DB6AC" fillcolor="#E0F2F1" shape=preparation style=filled]
+	N6 [label="Drafting Content" color="#2196F3" fillcolor="#BBDEFB" shape=parallelogram style=filled]
+	N7 [label="Blog Post Writing" color="#3F51B5" fillcolor="#C5CAE9" shape=diamond style=filled]
+	N8 [label="Performance Tracking" color="#4DB6AC" fillcolor="#E0F2F1" shape=diamond style=filled]
+	N9 [label="Ideation and Brainstorming" color="#3F51B5" fillcolor="#C5CAE9" shape=preparation style=filled]
+	N10 [label="Video Scripting" color="#4DB6AC" fillcolor="#E0F2F1" shape=document style=filled]
+	N11 [label="Audience Engagement" color="#3F51B5" fillcolor="#C5CAE9" shape=vnode_shape style=filled]
+	S0 [label="" color="#4DB6AC" fillcolor="#E0F2F1" 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="#2196F3" fillcolor="#BBDEFB" 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="#3F51B5" fillcolor="#C5CAE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Content Management System Operation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Content Management System Operation"
+		nest0_0 [label="Transcribing Audio or Video" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+		nest0_1 [label="Editing and Proofreading" color="#2196F3" fillcolor="#BBDEFB" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Call to Action Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Call to Action Design"
+		nest1_0 [label="Voice Acting or Narration" color="#3F51B5" fillcolor="#C5CAE9" shape=hexagon style=filled]
+		nest1_1 [label="Newsletter Creation" color="#4DB6AC" fillcolor="#E0F2F1" shape=ellipse style=filled]
+		nest1_2 [label="Research and Outline" color="#3F51B5" fillcolor="#C5CAE9" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N6 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N4 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S1 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N11 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N9 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	M2 -> N11 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_300.txt b/test/diagrams/scanned_medium/diagrams_300.txt
new file mode 100644
index 0000000000000000000000000000000000000000..30f09af860b148e582ad6ea4aa3437b5296fb574
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_300.txt
@@ -0,0 +1,31 @@
+<Blog Post Writing, connectedTo, Performance Tracking>
+<Branding, connectedTo, Plagiarism Checking>
+<Distribution Planning, connectedTo, Audience Engagement>
+<Distribution Planning, connectedTo, Branding>
+<Distribution Planning, connectedTo, Graphic Design>
+<Distribution Planning, connectedTo, Ideation and Brainstorming>
+<Drafting Content, connectedTo, Blog Post Writing>
+<Editing and Proofreading, connectedTo, Drafting Content>
+<Graphic Design, connectedTo, Branding>
+<Ideation and Brainstorming, connectedTo, Video Scripting>
+<Interactive Content Development, connectedTo, Audience Engagement>
+<Interactive Content Development, connectedTo, Branding>
+<Interactive Content Development, connectedTo, Distribution Planning>
+<Interactive Content Development, connectedTo, Graphic Design>
+<Interactive Content Development, connectedTo, Ideation and Brainstorming>
+<Interactive Content Development, connectedTo, Search Engine Optimization>
+<Newsletter Creation, connectedTo, Research and Outline>
+<Performance Tracking, connectedTo, Audience Engagement>
+<Performance Tracking, connectedTo, Ideation and Brainstorming>
+<Performance Tracking, connectedTo, Video Scripting>
+<Performance Tracking, connectedTo, Voice Acting or Narration>
+<Plagiarism Checking, connectedTo, Drafting Content>
+<Plagiarism Checking, connectedTo, Ideation and Brainstorming>
+<Plagiarism Checking, connectedTo, Transcribing Audio or Video>
+<Research and Outline, connectedTo, Branding>
+<Search Engine Optimization, connectedTo, Blog Post Writing>
+<Search Engine Optimization, connectedTo, Distribution Planning>
+<Search Engine Optimization, connectedTo, Video Scripting>
+<Transcribing Audio or Video, connectedTo, Editing and Proofreading>
+<Video Scripting, connectedTo, Audience Engagement>
+<Voice Acting or Narration, connectedTo, Newsletter Creation>
diff --git a/test/diagrams/scanned_medium/diagrams_301.dot b/test/diagrams/scanned_medium/diagrams_301.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f67f70f67c2276a7950fead6f86a495adc5bd3b4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_301.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=BT
+	N0 [label="Sentiment Analysis" color="#66BB6A" fillcolor="#E8F5E9" shape=rect style=filled]
+	N1 [label="Time Series Forecasting" color="#73C6BC" fillcolor="#D0EFEE" shape=predefinedprocess style=filled]
+	N2 [label="Data Visualization" color="#66BB6A" fillcolor="#E8F5E9" shape=database style=filled]
+	N3 [label="Report Generation" color="#7986CB" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N4 [label="Exploratory Data Analysis" color="#7986CB" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N5 [label="Business User Training on Analytics" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+	N6 [label="Financial Data Analysis" color="#7986CB" fillcolor="#E8EAF6" shape=database style=filled]
+	N7 [label="Data Pipeline Development" color="#66BB6A" fillcolor="#E8F5E9" shape=inputoutput style=filled]
+	N8 [label="Data Security Best Practices" color="#66BB6A" fillcolor="#E8F5E9" shape=multipledocuments style=filled]
+	N9 [label="Data Transformation" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+	S1 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#66BB6A" fillcolor="#E8F5E9" 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="#7986CB" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#73C6BC" fillcolor="#D0EFEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Data Governance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Data Governance"
+		nest0_0 [label="Statistical Modeling" color="#7986CB" fillcolor="#E8EAF6" shape=predefinedprocess style=filled]
+		nest0_1 [label="Geospatial Analysis" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+		nest0_2 [label="Natural Language Processing for Data" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+		nest0_3 [label="Healthcare Data Analysis" color="#7986CB" fillcolor="#E8EAF6" shape=action style=filled]
+	}
+	subgraph cluster_Machine Learning Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Machine Learning Integration"
+		nest1_0 [label="Data Cleaning" color="#73C6BC" fillcolor="#D0EFEE" shape=predefinedprocess style=filled]
+		nest1_1 [label="Cloud_based Data Platforms" color="#7986CB" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+		nest1_2 [label="Marketing Campaign Analysis" color="#7986CB" fillcolor="#E8EAF6" shape=rectangle style=filled]
+		nest1_3 [label="Web Analytics" color="#7986CB" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#73C6BC" 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="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest0_0 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest1_0 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#66BB6A" penwidth=1.5 style=dashed label="secures" dir=forward]
+	S1 -> N8 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S2 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N5 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S2 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N6 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#7986CB" penwidth=1.5 style=solid label="reports" dir=forward]
+	N1 -> M0 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#7986CB" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N5 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_302.dot b/test/diagrams/scanned_medium/diagrams_302.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9b70acba661b68a29fbccdf6cebddc71824b47f8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_302.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=BT
+	N0 [label="Data Storytelling for Business" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N1 [label="OLAP Cube Creation" color="#81C784" fillcolor="#F1F8E9" shape=multipledocuments style=filled]
+	N2 [label="Actionable Insights Generation" color="#81C784" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+	N3 [label="Dashboard Design" color="#A1887F" fillcolor="#EFEBE9" shape=hexagon style=filled]
+	N4 [label="Budget Performance Analysis" color="#81C784" fillcolor="#F1F8E9" shape=box style=filled]
+	N5 [label="Master Data Management" color="#A1887F" fillcolor="#EFEBE9" shape=rectangle style=filled]
+	N6 [label="Data Source Integration" color="#81C784" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+	N7 [label="Sales Forecasting" color="#81C784" fillcolor="#F1F8E9" shape=preparation style=filled]
+	N8 [label="Performance Monitoring" color="#81C784" fillcolor="#F1F8E9" shape=database style=filled]
+	N9 [label="Competitive Analysis" color="#94C0C0" fillcolor="#CADEDE" shape=database style=filled]
+	N10 [label="Regulatory Compliance Reporting" color="#A1887F" fillcolor="#EFEBE9" shape=preparation style=filled]
+	N11 [label="Cloud BI Solutions" color="#A1887F" fillcolor="#EFEBE9" shape=document style=filled]
+	N12 [label="Financial Performance Reporting" color="#81C784" fillcolor="#F1F8E9" shape=database style=filled]
+	N13 [label="Real_time BI Dashboards" color="#81C784" fillcolor="#F1F8E9" shape=document style=filled]
+	N14 [label="Operational Efficiency Measurement" color="#A1887F" fillcolor="#EFEBE9" shape=database style=filled]
+	N15 [label="Prescriptive Analytics Implementation" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+	N16 [label="Executive Summary Reporting" color="#81C784" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	S0 [label="" color="#A1887F" fillcolor="#EFEBE9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#94C0C0" fillcolor="#CADEDE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#A1887F" fillcolor="#EFEBE9" 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_Data Lineage Tracking {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Data Lineage Tracking"
+		nest0_0 [label="Data Governance Policies" color="#81C784" fillcolor="#F1F8E9" shape=rectangle style=filled]
+		nest0_1 [label="Self_Service BI Tools" color="#94C0C0" fillcolor="#CADEDE" shape=multipledocuments style=filled]
+		nest0_2 [label="Mobile BI Development" color="#94C0C0" fillcolor="#CADEDE" shape=ellipse style=filled]
+		nest0_3 [label="Supply Chain Optimization" color="#81C784" fillcolor="#F1F8E9" shape=rectangle style=filled]
+	}
+	subgraph cluster_Risk Assessment Reporting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Risk Assessment Reporting"
+		nest1_0 [label="Data Security in BI" color="#A1887F" fillcolor="#EFEBE9" shape=diamond style=filled]
+		nest1_1 [label="Business Process Improvement" color="#81C784" fillcolor="#F1F8E9" shape=predefinedprocess style=filled]
+		nest1_2 [label="Data Warehousing" color="#A1887F" fillcolor="#EFEBE9" shape=diamond style=filled]
+		nest1_3 [label="ETL Development" color="#81C784" fillcolor="#F1F8E9" shape=document style=filled]
+	}
+	N0 -> N1 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#81C784" penwidth=1.5 style=solid label="designs" dir=forward]
+	N10 -> N11 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#81C784" penwidth=1.5 style=dashed label="controls" dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N3 [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="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N6 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=solid label="supports" dir=forward]
+	S0 -> N12 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#A1887F" penwidth=1.5 style=dashed label="presents" dir=forward]
+	N12 -> S1 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	S1 -> N15 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#94C0C0" penwidth=1.5 style=dashed label="complies" dir=forward]
+	M1 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#81C784" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N6 -> M2 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N15 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_302.txt b/test/diagrams/scanned_medium/diagrams_302.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d23f155db506990b1fc7e13eecd57fd688e3336f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_302.txt
@@ -0,0 +1,36 @@
+<Actionable Insights Generation, connectedTo, Dashboard Design>
+<Budget Performance Analysis, connectedTo, Financial Performance Reporting>
+<Budget Performance Analysis, connectedTo, Master Data Management>
+<Budget Performance Analysis, presents, Real_time BI Dashboards>
+<Budget Performance Analysis, supports, Data Source Integration>
+<Business Process Improvement, connectedTo, Data Warehousing>
+<Cloud BI Solutions, connectedTo, Financial Performance Reporting>
+<Competitive Analysis, connectedTo, Data Governance Policies>
+<Competitive Analysis, designs, Regulatory Compliance Reporting>
+<Dashboard Design, connectedTo, Budget Performance Analysis>
+<Data Governance Policies, connectedTo, Self_Service BI Tools>
+<Data Security in BI, connectedTo, Business Process Improvement>
+<Data Source Integration, connectedTo, Prescriptive Analytics Implementation>
+<Data Source Integration, connectedTo, Sales Forecasting>
+<Data Storytelling for Business, connectedTo, Budget Performance Analysis>
+<Data Storytelling for Business, connectedTo, OLAP Cube Creation>
+<Data Warehousing, connectedTo, ETL Development>
+<ETL Development, connectedTo, Data Source Integration>
+<Financial Performance Reporting, connectedTo, Executive Summary Reporting>
+<Financial Performance Reporting, connectedTo, Operational Efficiency Measurement>
+<Financial Performance Reporting, connectedTo, Prescriptive Analytics Implementation>
+<Financial Performance Reporting, connectedTo, Real_time BI Dashboards>
+<Master Data Management, connectedTo, Data Source Integration>
+<Mobile BI Development, connectedTo, Supply Chain Optimization>
+<OLAP Cube Creation, complies, Budget Performance Analysis>
+<OLAP Cube Creation, connectedTo, Actionable Insights Generation>
+<OLAP Cube Creation, optimizes, Prescriptive Analytics Implementation>
+<Operational Efficiency Measurement, connectedTo, Prescriptive Analytics Implementation>
+<Performance Monitoring, connectedTo, Competitive Analysis>
+<Prescriptive Analytics Implementation, connectedTo, Executive Summary Reporting>
+<Real_time BI Dashboards, connectedTo, Operational Efficiency Measurement>
+<Regulatory Compliance Reporting, connectedTo, Cloud BI Solutions>
+<Regulatory Compliance Reporting, connectedTo, Data Security in BI>
+<Sales Forecasting, connectedTo, Performance Monitoring>
+<Self_Service BI Tools, controls, Mobile BI Development>
+<Supply Chain Optimization, connectedTo, Dashboard Design>
diff --git a/test/diagrams/scanned_medium/diagrams_303.dot b/test/diagrams/scanned_medium/diagrams_303.dot
new file mode 100644
index 0000000000000000000000000000000000000000..145b99535ac7a788bfdf10f8bc9410494c0f5d39
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_303.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=TB
+	N0 [label="Conversion Rate Optimization" color="#E91E63" fillcolor="#F8BBD0" shape=action style=filled]
+	N1 [label="Podcast Marketing" color="#D3EB9F" fillcolor="#F8FDD3" shape=diamond style=filled]
+	N2 [label="Search Engine Marketing" color="#D3EB9F" fillcolor="#F8FDD3" shape=predefinedprocess style=filled]
+	N3 [label="Pricing Strategy" color="#D3EB9F" fillcolor="#F8FDD3" shape=inputoutput style=filled]
+	N4 [label="Event Marketing" color="#FFB2A5" fillcolor="#FFDCD6" shape=inputoutput style=filled]
+	N5 [label="Telemarketing" color="#D3EB9F" fillcolor="#F8FDD3" shape=inputoutput style=filled]
+	N6 [label="Remarketing Campaigns" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	N7 [label="Website Design and Optimization" color="#E91E63" fillcolor="#F8BBD0" shape=action style=filled]
+	N8 [label="Affiliate Marketing" color="#FFB2A5" fillcolor="#FFDCD6" shape=document style=filled]
+	N9 [label="Marketing Analytics" color="#FFB2A5" fillcolor="#FFDCD6" shape=inputoutput style=filled]
+	N10 [label="Competitive Analysis" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	N11 [label="Campaign Performance Tracking" color="#FFB2A5" fillcolor="#FFDCD6" shape=parallelogram style=filled]
+	N12 [label="Promotional Campaigns" color="#FFB2A5" fillcolor="#FFDCD6" shape=parallelogram style=filled]
+	N13 [label="Distribution Channel Management" color="#E91E63" fillcolor="#F8BBD0" shape=preparation style=filled]
+	N14 [label="Marketing Budget Allocation" color="#E91E63" fillcolor="#F8BBD0" shape=multipledocuments style=filled]
+	N15 [label="Email Marketing" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N16 [label="Social Media Marketing" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	S0 [label="" color="#FFB2A5" fillcolor="#FFDCD6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#D3EB9F" fillcolor="#F8FDD3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [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_Brand Reputation Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Brand Reputation Management"
+		nest0_0 [label="Partnership Marketing" color="#E91E63" fillcolor="#F8BBD0" shape=rect style=filled]
+		nest0_1 [label="Market Research" color="#D3EB9F" fillcolor="#F8FDD3" shape=hexagon style=filled]
+		nest0_2 [label="Personalization Strategies" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+		nest0_3 [label="Brand Strategy Development" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	}
+	subgraph cluster_Search Engine Optimization {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Search Engine Optimization"
+		nest1_0 [label="Loyalty Programs" color="#E91E63" fillcolor="#F8BBD0" shape=preparation style=filled]
+		nest1_1 [label="Customer Journey Mapping" color="#D3EB9F" fillcolor="#F8FDD3" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#D3EB9F" penwidth=1.5 style=solid label="organizes events" dir=forward]
+	N3 -> N4 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#D3EB9F" penwidth=1.5 style=solid label="distributes products" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#E91E63" penwidth=1.5 style=dashed label="builds loyalty" dir=forward]
+	N9 -> N10 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#FFB2A5" penwidth=1.5 style=solid label="manages reputation" dir=forward]
+	N13 -> N14 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#FFB2A5" 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="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N11 -> nest0_0 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N12 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest1_0 [color="#D3EB9F" penwidth=1.5 style=dashed label="manages social media" dir=forward]
+	nest1_1 -> N15 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N6 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N16 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S1 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N8 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N7 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	M1 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_304.dot b/test/diagrams/scanned_medium/diagrams_304.dot
new file mode 100644
index 0000000000000000000000000000000000000000..525e5796f1dbfe42112d32d791101999bbdb3c05
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_304.dot
@@ -0,0 +1,62 @@
+digraph {
+	rankdir=TB
+	N0 [label="Interactive Ad Formats" color="#FBC02D" fillcolor="#FFFDE7" shape=database style=filled]
+	N1 [label="Search Engine Ads" color="#DCE775" fillcolor="#F9FBE7" shape=vnode_shape style=filled]
+	N2 [label="Direct Response Campaigns" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	N3 [label="Audience Targeting" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N4 [label="Ad Platform Management" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N5 [label="Print Advertising" color="#FBC02D" fillcolor="#FFFDE7" shape=document style=filled]
+	N6 [label="Campaign Planning" color="#DCE775" fillcolor="#F9FBE7" shape=action style=filled]
+	N7 [label="Social Media Ads" color="#9FA9E1" fillcolor="#D6D9F0" shape=predefinedprocess style=filled]
+	N8 [label="Brand Awareness Campaigns" color="#DCE775" fillcolor="#F9FBE7" shape=document style=filled]
+	N9 [label="Television Advertising" color="#FBC02D" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N10 [label="Demographic Targeting" color="#FBC02D" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N11 [label="Competitor Ad Analysis" color="#9FA9E1" fillcolor="#D6D9F0" shape=diamond style=filled]
+	S1 [label="" color="#FBC02D" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Psychographic Targeting {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Psychographic Targeting"
+		nest0_0 [label="Ad Placement Optimization" color="#9FA9E1" fillcolor="#D6D9F0" shape=document style=filled]
+		nest0_1 [label="Visual Design for Ads" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	}
+	subgraph cluster_Ad Network Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ad Network Management"
+		nest1_0 [label="Radio Advertising" color="#DCE775" fillcolor="#F9FBE7" shape=action style=filled]
+		nest1_1 [label="Digital Advertising" color="#DCE775" fillcolor="#F9FBE7" shape=rectangle style=filled]
+		nest1_2 [label="Fraud Detection in Ads" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#FBC02D" penwidth=1.5 style=solid label="radio ads" dir=forward]
+	N1 -> N2 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="segments audiences" dir=forward]
+	N9 -> N10 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#9FA9E1" penwidth=1.5 style=solid label="calculates CAC" dir=forward]
+	N5 -> nest0_0 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N2 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest1_0 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N4 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N4 -> S1 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N3 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N4 -> M2 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N3 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M2 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	M2 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_304.txt b/test/diagrams/scanned_medium/diagrams_304.txt
new file mode 100644
index 0000000000000000000000000000000000000000..bead47b2a463aadf0f5925963ececa410414741a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_304.txt
@@ -0,0 +1,26 @@
+<Ad Placement Optimization, calculates CAC, Visual Design for Ads>
+<Ad Platform Management, connectedTo, Brand Awareness Campaigns>
+<Ad Platform Management, connectedTo, Demographic Targeting>
+<Ad Platform Management, connectedTo, Print Advertising>
+<Ad Platform Management, connectedTo, Television Advertising>
+<Audience Targeting, connectedTo, Ad Platform Management>
+<Audience Targeting, connectedTo, Demographic Targeting>
+<Brand Awareness Campaigns, segments audiences, Television Advertising>
+<Campaign Planning, connectedTo, Social Media Ads>
+<Demographic Targeting, connectedTo, Competitor Ad Analysis>
+<Digital Advertising, connectedTo, Fraud Detection in Ads>
+<Direct Response Campaigns, connectedTo, Audience Targeting>
+<Fraud Detection in Ads, connectedTo, Ad Platform Management>
+<Interactive Ad Formats, connectedTo, Audience Targeting>
+<Interactive Ad Formats, radio ads, Search Engine Ads>
+<Print Advertising, connectedTo, Ad Placement Optimization>
+<Print Advertising, connectedTo, Campaign Planning>
+<Print Advertising, connectedTo, Demographic Targeting>
+<Radio Advertising, connectedTo, Digital Advertising>
+<Search Engine Ads, connectedTo, Audience Targeting>
+<Search Engine Ads, connectedTo, Direct Response Campaigns>
+<Search Engine Ads, connectedTo, Radio Advertising>
+<Social Media Ads, connectedTo, Brand Awareness Campaigns>
+<Social Media Ads, connectedTo, Demographic Targeting>
+<Television Advertising, connectedTo, Demographic Targeting>
+<Visual Design for Ads, connectedTo, Direct Response Campaigns>
diff --git a/test/diagrams/scanned_medium/diagrams_305.dot b/test/diagrams/scanned_medium/diagrams_305.dot
new file mode 100644
index 0000000000000000000000000000000000000000..15cc5f85818e42732d718979a195cb328a4a35ab
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_305.dot
@@ -0,0 +1,60 @@
+digraph {
+	rankdir=BT
+	N0 [label="Sharding Implementation" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+	N1 [label="Private Blockchain Implementation" color="#FFDA4E" fillcolor="#FFE88D" shape=hexagon style=filled]
+	N2 [label="Cross_Border Payments" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N3 [label="Consortium Blockchain Setup" color="#A188DB" fillcolor="#DED7F0" shape=multipledocuments style=filled]
+	N4 [label="Digital Identity Management" color="#BDBDBD" fillcolor="#F5F5F5" shape=multipledocuments style=filled]
+	N5 [label="Regulatory Compliance for Blockchain" color="#A188DB" fillcolor="#DED7F0" shape=action style=filled]
+	N6 [label="Cross_Chain Bridges" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N7 [label="Mining Operations" color="#BDBDBD" fillcolor="#F5F5F5" shape=document style=filled]
+	S0 [label="" color="#FFDA4E" fillcolor="#FFE88D" 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]
+	M2 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Oracles Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Oracles Integration"
+		nest0_0 [label="Scalability Solutions" color="#BDBDBD" fillcolor="#F5F5F5" shape=inputoutput style=filled]
+		nest0_1 [label="Sidechains and Layer 2 Solutions" color="#A188DB" fillcolor="#DED7F0" shape=vnode_shape style=filled]
+		nest0_2 [label="Public Blockchain Deployment" color="#A188DB" fillcolor="#DED7F0" shape=rect style=filled]
+		nest0_3 [label="Non_Fungible Token Creation" color="#A188DB" fillcolor="#DED7F0" shape=rect style=filled]
+	}
+	subgraph cluster_Zero_Knowledge Proofs {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Zero_Knowledge Proofs"
+		nest1_0 [label="Security Token Offerings" color="#A188DB" fillcolor="#DED7F0" shape=inputoutput style=filled]
+		nest1_1 [label="Wallet Management" color="#FFDA4E" fillcolor="#FFE88D" shape=multipledocuments style=filled]
+		nest1_2 [label="Decentralized Applications Development" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+		nest1_3 [label="Decentralized Finance Protocols" color="#BDBDBD" fillcolor="#F5F5F5" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="builds enterprise solutions" 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="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A188DB" penwidth=1.5 style=solid label="creates bridges" dir=forward]
+	N6 -> N7 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#A188DB" penwidth=1.5 style=dashed label="builds NFTs" dir=forward]
+	N1 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N3 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N4 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N3 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#FFDA4E" penwidth=1.5 style=dashed label="ensures compliance" dir=forward]
+	N1 -> M2 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	M2 -> N5 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_305.txt b/test/diagrams/scanned_medium/diagrams_305.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ef37046c0e908a6f1194568d0747c2f1b0b85a58
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_305.txt
@@ -0,0 +1,25 @@
+<Consortium Blockchain Setup, connectedTo, Digital Identity Management>
+<Consortium Blockchain Setup, connectedTo, Mining Operations>
+<Cross_Border Payments, connectedTo, Consortium Blockchain Setup>
+<Cross_Border Payments, connectedTo, Regulatory Compliance for Blockchain>
+<Cross_Chain Bridges, connectedTo, Mining Operations>
+<Decentralized Applications Development, connectedTo, Decentralized Finance Protocols>
+<Decentralized Finance Protocols, connectedTo, Digital Identity Management>
+<Digital Identity Management, connectedTo, Regulatory Compliance for Blockchain>
+<Non_Fungible Token Creation, connectedTo, Consortium Blockchain Setup>
+<Private Blockchain Implementation, builds enterprise solutions, Cross_Border Payments>
+<Private Blockchain Implementation, connectedTo, Consortium Blockchain Setup>
+<Private Blockchain Implementation, connectedTo, Cross_Chain Bridges>
+<Private Blockchain Implementation, connectedTo, Mining Operations>
+<Private Blockchain Implementation, connectedTo, Regulatory Compliance for Blockchain>
+<Private Blockchain Implementation, connectedTo, Scalability Solutions>
+<Private Blockchain Implementation, connectedTo, Security Token Offerings>
+<Public Blockchain Deployment, builds NFTs, Non_Fungible Token Creation>
+<Regulatory Compliance for Blockchain, connectedTo, Mining Operations>
+<Regulatory Compliance for Blockchain, creates bridges, Cross_Chain Bridges>
+<Scalability Solutions, connectedTo, Sidechains and Layer 2 Solutions>
+<Security Token Offerings, connectedTo, Wallet Management>
+<Sharding Implementation, connectedTo, Private Blockchain Implementation>
+<Sharding Implementation, ensures compliance, Regulatory Compliance for Blockchain>
+<Sidechains and Layer 2 Solutions, connectedTo, Public Blockchain Deployment>
+<Wallet Management, connectedTo, Decentralized Applications Development>
diff --git a/test/diagrams/scanned_medium/diagrams_306.dot b/test/diagrams/scanned_medium/diagrams_306.dot
new file mode 100644
index 0000000000000000000000000000000000000000..aeef1ed037623b1df6ada2bb123d4e5076f22b63
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_306.dot
@@ -0,0 +1,70 @@
+digraph {
+	rankdir=LR
+	N0 [label="Portfolio Management" color="#607D8B" fillcolor="#CFD8DC" shape=database style=filled]
+	N1 [label="Decentralized Autonomous Organizations" color="#00BCD4" fillcolor="#B2EBF2" shape=rect style=filled]
+	N2 [label="Transaction Processing" color="#607D8B" fillcolor="#CFD8DC" shape=inputoutput style=filled]
+	N3 [label="Cold Storage Solutions" color="#00BCD4" fillcolor="#B2EBF2" shape=parallelogram style=filled]
+	N4 [label="Smart Contract Auditing" color="#607D8B" fillcolor="#CFD8DC" shape=database style=filled]
+	N5 [label="KYC or AML Procedures" color="#00BCD4" fillcolor="#B2EBF2" shape=rectangle style=filled]
+	N6 [label="Regulatory Compliance" color="#00BCD4" fillcolor="#B2EBF2" shape=box style=filled]
+	N7 [label="Lending and Borrowing Protocols" color="#90A4AE" fillcolor="#ECEFF1" shape=multipledocuments style=filled]
+	N8 [label="Blockchain Integration" color="#00BCD4" fillcolor="#B2EBF2" shape=rectangle style=filled]
+	N9 [label="Fiat On or Off Ramps" color="#90A4AE" fillcolor="#ECEFF1" shape=diamond style=filled]
+	N10 [label="Stablecoin Design" color="#90A4AE" fillcolor="#ECEFF1" shape=action style=filled]
+	N11 [label="Key Management" color="#607D8B" fillcolor="#CFD8DC" shape=document style=filled]
+	N12 [label="GameFi Development" color="#607D8B" fillcolor="#CFD8DC" shape=rect style=filled]
+	N13 [label="Legal Advisory for Crypto" color="#00BCD4" fillcolor="#B2EBF2" 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="#90A4AE" fillcolor="#ECEFF1" 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]
+	M2 [label="" color="#90A4AE" fillcolor="#ECEFF1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Blockchain Explorers {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Blockchain Explorers"
+		nest0_0 [label="Liquidity Provision" color="#607D8B" fillcolor="#CFD8DC" shape=predefinedprocess style=filled]
+		nest0_1 [label="NFT Marketplace Development" color="#607D8B" fillcolor="#CFD8DC" shape=multipledocuments style=filled]
+	}
+	subgraph cluster_Decentralized Exchange Operation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Decentralized Exchange Operation"
+		nest1_0 [label="Initial Exchange Offering" color="#90A4AE" fillcolor="#ECEFF1" shape=hexagon style=filled]
+		nest1_1 [label="Web3 Integration" color="#90A4AE" fillcolor="#ECEFF1" shape=action style=filled]
+		nest1_2 [label="Community Building" color="#00BCD4" fillcolor="#B2EBF2" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#90A4AE" 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="#90A4AE" penwidth=1.5 style=solid label="develops GameFi" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#00BCD4" penwidth=1.5 style=solid label="optimizes investments" dir=forward]
+	N12 -> N13 [color="#607D8B" penwidth=1.5 style=dashed label="secures private keys" dir=forward]
+	nest0_0 -> nest0_1 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N5 [color="#00BCD4" 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="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest1_0 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> S0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=dashed label="ensures interoperability" dir=forward]
+	N2 -> S1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#000000" penwidth=1.5 style=dashed label="calculates taxes" dir=forward]
+	N0 -> M2 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N6 -> M2 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N8 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_306.txt b/test/diagrams/scanned_medium/diagrams_306.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a597a28ad74da8fb6a345acf7a3225642df937ed
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_306.txt
@@ -0,0 +1,30 @@
+<Blockchain Integration, connectedTo, Fiat On or Off Ramps>
+<Cold Storage Solutions, calculates taxes, Blockchain Integration>
+<Cold Storage Solutions, develops GameFi, Smart Contract Auditing>
+<Community Building, connectedTo, Decentralized Autonomous Organizations>
+<Decentralized Autonomous Organizations, connectedTo, Smart Contract Auditing>
+<Decentralized Autonomous Organizations, connectedTo, Transaction Processing>
+<Fiat On or Off Ramps, connectedTo, GameFi Development>
+<Fiat On or Off Ramps, connectedTo, Liquidity Provision>
+<Fiat On or Off Ramps, connectedTo, Stablecoin Design>
+<Fiat On or Off Ramps, ensures interoperability, Key Management>
+<GameFi Development, secures private keys, Legal Advisory for Crypto>
+<Initial Exchange Offering, connectedTo, Web3 Integration>
+<KYC or AML Procedures, connectedTo, Regulatory Compliance>
+<Key Management, optimizes investments, GameFi Development>
+<Lending and Borrowing Protocols, connectedTo, Blockchain Integration>
+<Liquidity Provision, connectedTo, NFT Marketplace Development>
+<NFT Marketplace Development, connectedTo, KYC or AML Procedures>
+<Portfolio Management, connectedTo, Blockchain Integration>
+<Portfolio Management, connectedTo, Decentralized Autonomous Organizations>
+<Portfolio Management, connectedTo, Smart Contract Auditing>
+<Regulatory Compliance, connectedTo, Blockchain Integration>
+<Regulatory Compliance, connectedTo, Lending and Borrowing Protocols>
+<Smart Contract Auditing, connectedTo, KYC or AML Procedures>
+<Stablecoin Design, connectedTo, Key Management>
+<Transaction Processing, connectedTo, Cold Storage Solutions>
+<Transaction Processing, connectedTo, Initial Exchange Offering>
+<Transaction Processing, connectedTo, Lending and Borrowing Protocols>
+<Transaction Processing, connectedTo, Regulatory Compliance>
+<Transaction Processing, connectedTo, Stablecoin Design>
+<Web3 Integration, connectedTo, Community Building>
diff --git a/test/diagrams/scanned_medium/diagrams_307.dot b/test/diagrams/scanned_medium/diagrams_307.dot
new file mode 100644
index 0000000000000000000000000000000000000000..75dbe28817c1f67c8a945aba645373436b2f07f5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_307.dot
@@ -0,0 +1,66 @@
+digraph {
+	rankdir=RL
+	N0 [label="Manufacturing Planning" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N1 [label="Social Media Promotion" color="#9FA9E1" fillcolor="#D6D9F0" shape=action style=filled]
+	N2 [label="Intellectual Property Protection" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	N3 [label="International Crowdfunding" color="#CD8FF2" fillcolor="#ECCFF5" shape=rect style=filled]
+	N4 [label="Debt Crowdfunding" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	N5 [label="Securities Regulations Adherence" color="#2196F3" fillcolor="#BBDEFB" shape=rectangle style=filled]
+	N6 [label="Goal Setting" color="#CD8FF2" fillcolor="#ECCFF5" shape=inputoutput style=filled]
+	N7 [label="Equity Crowdfunding" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N8 [label="Post_Campaign Reporting" color="#9FA9E1" fillcolor="#D6D9F0" shape=preparation style=filled]
+	N9 [label="Customer Support for Backers" color="#CD8FF2" fillcolor="#ECCFF5" shape=database style=filled]
+	N10 [label="Product Development Lifecycle" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N11 [label="Payment Processing" color="#2196F3" fillcolor="#BBDEFB" shape=hexagon style=filled]
+	S0 [label="" color="#2196F3" fillcolor="#BBDEFB" 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="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Real Estate Crowdfunding {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Real Estate Crowdfunding"
+		nest0_0 [label="Pitch Deck Preparation" color="#2196F3" fillcolor="#BBDEFB" shape=hexagon style=filled]
+		nest0_1 [label="Donation_Based Crowdfunding" color="#2196F3" fillcolor="#BBDEFB" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Investor Relations {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Investor Relations"
+		nest1_0 [label="Platform Fee Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=action style=filled]
+		nest1_1 [label="Backer Communication" color="#2196F3" fillcolor="#BBDEFB" shape=document style=filled]
+		nest1_2 [label="Success Fee Structures" color="#9FA9E1" fillcolor="#D6D9F0" shape=action style=filled]
+	}
+	N0 -> N1 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#CD8FF2" 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 dir=forward]
+	N6 -> N7 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N4 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest1_0 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N11 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N8 -> S0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S1 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N5 -> S2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	M1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_307.txt b/test/diagrams/scanned_medium/diagrams_307.txt
new file mode 100644
index 0000000000000000000000000000000000000000..23b3ef490eff66d876e1bb5c233bc2a484334111
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_307.txt
@@ -0,0 +1,26 @@
+<Backer Communication, connectedTo, Success Fee Structures>
+<Customer Support for Backers, connectedTo, Product Development Lifecycle>
+<Debt Crowdfunding, connectedTo, Pitch Deck Preparation>
+<Debt Crowdfunding, connectedTo, Securities Regulations Adherence>
+<Donation_Based Crowdfunding, connectedTo, Debt Crowdfunding>
+<Equity Crowdfunding, connectedTo, Post_Campaign Reporting>
+<Goal Setting, connectedTo, Equity Crowdfunding>
+<Goal Setting, connectedTo, Platform Fee Management>
+<Goal Setting, connectedTo, Post_Campaign Reporting>
+<Intellectual Property Protection, connectedTo, International Crowdfunding>
+<International Crowdfunding, connectedTo, Debt Crowdfunding>
+<Manufacturing Planning, connectedTo, Social Media Promotion>
+<Pitch Deck Preparation, connectedTo, Donation_Based Crowdfunding>
+<Platform Fee Management, connectedTo, Backer Communication>
+<Post_Campaign Reporting, connectedTo, Customer Support for Backers>
+<Post_Campaign Reporting, connectedTo, Payment Processing>
+<Post_Campaign Reporting, connectedTo, Product Development Lifecycle>
+<Product Development Lifecycle, connectedTo, Payment Processing>
+<Securities Regulations Adherence, connectedTo, Customer Support for Backers>
+<Securities Regulations Adherence, connectedTo, Equity Crowdfunding>
+<Securities Regulations Adherence, connectedTo, Goal Setting>
+<Securities Regulations Adherence, connectedTo, Payment Processing>
+<Securities Regulations Adherence, connectedTo, Post_Campaign Reporting>
+<Securities Regulations Adherence, connectedTo, Product Development Lifecycle>
+<Social Media Promotion, connectedTo, Intellectual Property Protection>
+<Success Fee Structures, connectedTo, Payment Processing>
diff --git a/test/diagrams/scanned_medium/diagrams_308.dot b/test/diagrams/scanned_medium/diagrams_308.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0aa8717150830526fc23116f49db9d0a1687d639
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_308.dot
@@ -0,0 +1,76 @@
+digraph {
+	rankdir=BT
+	N0 [label="Smart Manufacturing" color="#FFE470" fillcolor="#FFFAE0" shape=rectangle style=filled]
+	N1 [label="Agricultural IoT" color="#FF5722" fillcolor="#FFCCBC" shape=predefinedprocess style=filled]
+	N2 [label="Remote Monitoring and Control" color="#FFE470" fillcolor="#FFFAE0" shape=action style=filled]
+	N3 [label="Smart City Sensors" color="#66BB6A" fillcolor="#E8F5E9" shape=vnode_shape style=filled]
+	N4 [label="Data Collection" color="#FFE470" fillcolor="#FFFAE0" shape=multipledocuments style=filled]
+	N5 [label="Interoperability Standards" color="#FFE470" fillcolor="#FFFAE0" shape=diamond style=filled]
+	N6 [label="Over_the_Air Updates" color="#FF5722" fillcolor="#FFCCBC" shape=ellipse style=filled]
+	N7 [label="Environmental Monitoring" color="#FF5722" fillcolor="#FFCCBC" shape=preparation style=filled]
+	N8 [label="Security Implementation" color="#FF5722" fillcolor="#FFCCBC" shape=preparation style=filled]
+	N9 [label="Firmware Updates" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N10 [label="Transportation IoT" color="#FFE470" fillcolor="#FFFAE0" shape=parallelogram style=filled]
+	N11 [label="Connected Vehicles" color="#FFE470" fillcolor="#FFFAE0" shape=document style=filled]
+	N12 [label="Device Prototyping" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N13 [label="Cloud Platform Integration" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse 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]
+	S2 [label="" color="#FFE470" fillcolor="#FFFAE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFE470" fillcolor="#FFFAE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFE470" fillcolor="#FFFAE0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Power Management for Devices {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Power Management for Devices"
+		nest0_0 [label="Edge Computing for IoT" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+		nest0_1 [label="Connectivity Management" color="#66BB6A" fillcolor="#E8F5E9" shape=predefinedprocess style=filled]
+		nest0_2 [label="Device Management" color="#66BB6A" fillcolor="#E8F5E9" shape=hexagon style=filled]
+	}
+	subgraph cluster_API Development for IoT {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="API Development for IoT"
+		nest1_0 [label="Gateway Development" color="#FF5722" fillcolor="#FFCCBC" shape=database style=filled]
+		nest1_1 [label="IoT Device Certification" color="#FFE470" fillcolor="#FFFAE0" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="improves retail" dir=forward]
+	N3 -> N4 [color="#FF5722" 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 dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#FF5722" 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=dashed dir=forward]
+	N12 -> nest0_0 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest1_0 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N1 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N1 -> S1 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+	N5 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N12 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#FF5722" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N6 [color="#FFE470" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_308.txt b/test/diagrams/scanned_medium/diagrams_308.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b52d78df0d56adfdb2067b3333e0bbe75c1498d4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_308.txt
@@ -0,0 +1,33 @@
+<Agricultural IoT, connectedTo, Environmental Monitoring>
+<Agricultural IoT, connectedTo, Gateway Development>
+<Agricultural IoT, connectedTo, Interoperability Standards>
+<Agricultural IoT, connectedTo, Over_the_Air Updates>
+<Agricultural IoT, connectedTo, Remote Monitoring and Control>
+<Agricultural IoT, connectedTo, Security Implementation>
+<Agricultural IoT, connectedTo, Transportation IoT>
+<Connected Vehicles, connectedTo, Device Prototyping>
+<Connectivity Management, connectedTo, Device Management>
+<Data Collection, connectedTo, Interoperability Standards>
+<Device Management, connectedTo, Agricultural IoT>
+<Device Prototyping, connectedTo, Cloud Platform Integration>
+<Device Prototyping, connectedTo, Edge Computing for IoT>
+<Edge Computing for IoT, connectedTo, Connectivity Management>
+<Environmental Monitoring, connectedTo, Security Implementation>
+<Firmware Updates, connectedTo, Transportation IoT>
+<Gateway Development, connectedTo, IoT Device Certification>
+<Interoperability Standards, connectedTo, Cloud Platform Integration>
+<Interoperability Standards, connectedTo, Device Prototyping>
+<Interoperability Standards, connectedTo, Environmental Monitoring>
+<Interoperability Standards, connectedTo, Firmware Updates>
+<Interoperability Standards, connectedTo, Over_the_Air Updates>
+<Interoperability Standards, connectedTo, Security Implementation>
+<IoT Device Certification, connectedTo, Agricultural IoT>
+<Over_the_Air Updates, connectedTo, Environmental Monitoring>
+<Remote Monitoring and Control, connectedTo, Over_the_Air Updates>
+<Remote Monitoring and Control, improves retail, Smart City Sensors>
+<Security Implementation, connectedTo, Firmware Updates>
+<Smart City Sensors, connectedTo, Data Collection>
+<Smart Manufacturing, connectedTo, Agricultural IoT>
+<Smart Manufacturing, connectedTo, Interoperability Standards>
+<Smart Manufacturing, connectedTo, Over_the_Air Updates>
+<Transportation IoT, connectedTo, Connected Vehicles>
diff --git a/test/diagrams/scanned_medium/diagrams_309.dot b/test/diagrams/scanned_medium/diagrams_309.dot
new file mode 100644
index 0000000000000000000000000000000000000000..563554873b8beb909ff0496d2d12fd95492f99e5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_309.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=LR
+	N0 [label="Remote Device Management" color="#73C6BC" fillcolor="#D0EFEE" shape=hexagon style=filled]
+	N1 [label="Retail Edge Computing" color="#FFD54F" fillcolor="#FFF8E1" shape=parallelogram style=filled]
+	N2 [label="Bandwidth Optimization" color="#4DD0E1" fillcolor="#C9F0F0" shape=multipledocuments style=filled]
+	N3 [label="Edge Device Provisioning" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+	N4 [label="Healthcare Edge Computing" color="#73C6BC" fillcolor="#D0EFEE" shape=multipledocuments style=filled]
+	N5 [label="Edge Data Processing" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+	N6 [label="Data Filtering at Edge" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+	N7 [label="Edge Device Deployment" color="#4DD0E1" fillcolor="#C9F0F0" shape=action style=filled]
+	N8 [label="Edge Gateway Management" color="#FFD54F" fillcolor="#FFF8E1" shape=parallelogram style=filled]
+	N9 [label="Sensor Data Aggregation" color="#73C6BC" fillcolor="#D0EFEE" shape=database style=filled]
+	N10 [label="Orchestration of Edge Workloads" color="#FFD54F" fillcolor="#FFF8E1" shape=preparation style=filled]
+	N11 [label="Virtualization at Edge" color="#73C6BC" fillcolor="#D0EFEE" shape=document style=filled]
+	N12 [label="Edge Security Analytics" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+	N13 [label="Edge_to_Cloud Data Transfer Optimization" color="#FFD54F" fillcolor="#FFF8E1" shape=predefinedprocess style=filled]
+	N14 [label="Industrial Edge Computing" color="#FFD54F" fillcolor="#FFF8E1" shape=inputoutput style=filled]
+	N15 [label="Network Optimization for Edge" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+	N16 [label="Edge AI Model Deployment" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+	S0 [label="" color="#4DD0E1" fillcolor="#C9F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#4DD0E1" fillcolor="#C9F0F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#73C6BC" fillcolor="#D0EFEE" 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_Fault Tolerance at Edge {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Fault Tolerance at Edge"
+		nest0_0 [label="Containerization at Edge" color="#4DD0E1" fillcolor="#C9F0F0" shape=vnode_shape style=filled]
+		nest0_1 [label="Compliance and Governance at Edge" color="#4DD0E1" fillcolor="#C9F0F0" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Connectivity to Cloud {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Connectivity to Cloud"
+		nest1_0 [label="Local AI or ML Inference" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+		nest1_1 [label="Smart City Edge Solutions" color="#4DD0E1" fillcolor="#C9F0F0" shape=box 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="#FFD54F" penwidth=1.5 style=solid label="powers healthcare devices" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#73C6BC" 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="orchestrates containers" dir=forward]
+	N8 -> N9 [color="#73C6BC" penwidth=1.5 style=dashed label="manages APIs" dir=forward]
+	N9 -> N10 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest0_0 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFD54F" penwidth=1.5 style=solid label="designs architectures" dir=forward]
+	N13 -> nest1_0 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N15 [color="#73C6BC" penwidth=1.5 style=solid label="deploys analytics" dir=forward]
+	N2 -> M0 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N12 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N15 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_309.txt b/test/diagrams/scanned_medium/diagrams_309.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6e64e5a49ae3452b0ab651b4a3cf074998f7ee8c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_309.txt
@@ -0,0 +1,34 @@
+<Bandwidth Optimization, connectedTo, Healthcare Edge Computing>
+<Bandwidth Optimization, connectedTo, Virtualization at Edge>
+<Bandwidth Optimization, powers healthcare devices, Edge Device Provisioning>
+<Compliance and Governance at Edge, connectedTo, Edge_to_Cloud Data Transfer Optimization>
+<Containerization at Edge, connectedTo, Compliance and Governance at Edge>
+<Data Filtering at Edge, connectedTo, Edge Device Deployment>
+<Edge Data Processing, connectedTo, Containerization at Edge>
+<Edge Data Processing, connectedTo, Data Filtering at Edge>
+<Edge Data Processing, connectedTo, Network Optimization for Edge>
+<Edge Device Deployment, orchestrates containers, Edge Gateway Management>
+<Edge Device Provisioning, connectedTo, Healthcare Edge Computing>
+<Edge Device Provisioning, connectedTo, Network Optimization for Edge>
+<Edge Gateway Management, connectedTo, Edge_to_Cloud Data Transfer Optimization>
+<Edge Gateway Management, connectedTo, Orchestration of Edge Workloads>
+<Edge Gateway Management, deploys analytics, Network Optimization for Edge>
+<Edge Gateway Management, manages APIs, Sensor Data Aggregation>
+<Edge Security Analytics, connectedTo, Edge_to_Cloud Data Transfer Optimization>
+<Edge Security Analytics, connectedTo, Network Optimization for Edge>
+<Edge_to_Cloud Data Transfer Optimization, connectedTo, Industrial Edge Computing>
+<Edge_to_Cloud Data Transfer Optimization, connectedTo, Local AI or ML Inference>
+<Healthcare Edge Computing, connectedTo, Edge AI Model Deployment>
+<Healthcare Edge Computing, connectedTo, Edge Data Processing>
+<Healthcare Edge Computing, connectedTo, Edge Device Deployment>
+<Healthcare Edge Computing, connectedTo, Orchestration of Edge Workloads>
+<Industrial Edge Computing, connectedTo, Network Optimization for Edge>
+<Local AI or ML Inference, designs architectures, Smart City Edge Solutions>
+<Network Optimization for Edge, connectedTo, Edge AI Model Deployment>
+<Orchestration of Edge Workloads, connectedTo, Virtualization at Edge>
+<Remote Device Management, connectedTo, Healthcare Edge Computing>
+<Remote Device Management, connectedTo, Retail Edge Computing>
+<Retail Edge Computing, connectedTo, Bandwidth Optimization>
+<Sensor Data Aggregation, connectedTo, Orchestration of Edge Workloads>
+<Smart City Edge Solutions, connectedTo, Healthcare Edge Computing>
+<Virtualization at Edge, connectedTo, Edge Security Analytics>
diff --git a/test/diagrams/scanned_medium/diagrams_31.dot b/test/diagrams/scanned_medium/diagrams_31.dot
new file mode 100644
index 0000000000000000000000000000000000000000..954df634750f4ffef3d0e26087e7d8cc56361ca8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_31.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=BT
+	N0 [label="Player Recruitment" color="#B8C0F5" fillcolor="#ECF0FD" shape=predefinedprocess style=filled]
+	N1 [label="Fitness Conditioning" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N2 [label="Media Rights Negotiation" color="#7E57C2" fillcolor="#EDE7F6" shape=predefinedprocess style=filled]
+	N3 [label="Talent Scouting" color="#7E57C2" fillcolor="#EDE7F6" shape=rectangle style=filled]
+	N4 [label="Sponsorship Management" color="#C0CA33" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N5 [label="Ticketing Sales" color="#7E57C2" fillcolor="#EDE7F6" shape=predefinedprocess style=filled]
+	N6 [label="Sports Marketing" color="#7E57C2" fillcolor="#EDE7F6" shape=database style=filled]
+	N7 [label="Sports Technology Integration" color="#7E57C2" fillcolor="#EDE7F6" shape=rectangle style=filled]
+	N8 [label="Fan Experience Enhancement" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N9 [label="Rule Enforcement" color="#B8C0F5" fillcolor="#ECF0FD" shape=rectangle style=filled]
+	N0 -> N1 [color="#C0CA33" penwidth=1.5 style=dashed label="loses" dir=forward]
+	N1 -> N2 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#C0CA33" penwidth=1.5 style=dashed label="trains" dir=forward]
+	N5 -> N6 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#7E57C2" penwidth=1.5 style=solid label="rehabilitates" dir=forward]
+	N7 -> N8 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N0 [color="#C0CA33" penwidth=1.5 style=solid label="tests" dir=forward]
+	N0 -> N8 [color="#000000" penwidth=1.5 style=solid label="coaches" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_31.txt b/test/diagrams/scanned_medium/diagrams_31.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f38a704beb3b10e270164819086f570c8da976a6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_31.txt
@@ -0,0 +1,11 @@
+<Fan Experience Enhancement, connectedTo, Rule Enforcement>
+<Fitness Conditioning, connectedTo, Media Rights Negotiation>
+<Media Rights Negotiation, connectedTo, Talent Scouting>
+<Player Recruitment, coaches, Fan Experience Enhancement>
+<Player Recruitment, loses, Fitness Conditioning>
+<Rule Enforcement, tests, Player Recruitment>
+<Sponsorship Management, trains, Ticketing Sales>
+<Sports Marketing, rehabilitates, Sports Technology Integration>
+<Sports Technology Integration, connectedTo, Fan Experience Enhancement>
+<Talent Scouting, connectedTo, Sponsorship Management>
+<Ticketing Sales, connectedTo, Sports Marketing>
diff --git a/test/diagrams/scanned_medium/diagrams_310.dot b/test/diagrams/scanned_medium/diagrams_310.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ec77eebaa9475aa3a878d31e82ba65f8c4b3478a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_310.dot
@@ -0,0 +1,65 @@
+digraph {
+	rankdir=LR
+	N0 [label="Compliance in Cloud" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N1 [label="Auto_Scaling Configurations" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N2 [label="Cloud Firewall Configuration" color="#388E3C" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+	N3 [label="Database as a Service" color="#A188DB" fillcolor="#DED7F0" shape=vnode_shape style=filled]
+	N4 [label="Cloud Monitoring and Logging" color="#A188DB" fillcolor="#DED7F0" shape=diamond style=filled]
+	N5 [label="Cloud Migration Strategy" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	N6 [label="Software as a Service" color="#A188DB" fillcolor="#DED7F0" shape=predefinedprocess style=filled]
+	N7 [label="Cloud Marketplace Integration" color="#A188DB" fillcolor="#DED7F0" shape=box style=filled]
+	S0 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#388E3C" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#A188DB" fillcolor="#DED7F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Disaster Recovery in Cloud {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Disaster Recovery in Cloud"
+		nest0_0 [label="Cloud Security" color="#A188DB" fillcolor="#DED7F0" shape=database style=filled]
+		nest0_1 [label="Cloud Architecture Design" color="#A188DB" fillcolor="#DED7F0" shape=rect style=filled]
+		nest0_2 [label="Hybrid Cloud Deployment" color="#388E3C" fillcolor="#F1F8E9" shape=action style=filled]
+	}
+	subgraph cluster_Cloud Backup Solutions {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cloud Backup Solutions"
+		nest1_0 [label="Big Data Services in Cloud" color="#388E3C" fillcolor="#F1F8E9" shape=rectangle style=filled]
+		nest1_1 [label="Cloud FinOps" color="#388E3C" fillcolor="#F1F8E9" shape=parallelogram style=filled]
+		nest1_2 [label="Cloud Vendor Lock_in Mitigation" color="#A188DB" fillcolor="#DED7F0" shape=rectangle style=filled]
+		nest1_3 [label="Serverless Computing" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="processes big data" dir=forward]
+	N1 -> N2 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#388E3C" 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=solid dir=forward]
+	N3 -> nest0_0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N6 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#A188DB" penwidth=1.5 style=dashed label="secures environments" dir=forward]
+	nest1_2 -> nest1_3 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest1_0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N6 [color="#A188DB" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N0 -> S1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N2 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N3 -> S2 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N5 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=solid label="tags resources" dir=forward]
+	N3 -> M0 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#A188DB" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N6 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_310.txt b/test/diagrams/scanned_medium/diagrams_310.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8fe0f835c4cd23627e8eead55f3d41c0e6125c69
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_310.txt
@@ -0,0 +1,25 @@
+<Auto_Scaling Configurations, connectedTo, Cloud Firewall Configuration>
+<Auto_Scaling Configurations, connectedTo, Software as a Service>
+<Big Data Services in Cloud, connectedTo, Cloud FinOps>
+<Cloud Architecture Design, connectedTo, Hybrid Cloud Deployment>
+<Cloud FinOps, secures environments, Cloud Vendor Lock_in Mitigation>
+<Cloud Firewall Configuration, connectedTo, Database as a Service>
+<Cloud Migration Strategy, connectedTo, Big Data Services in Cloud>
+<Cloud Migration Strategy, connectedTo, Software as a Service>
+<Cloud Monitoring and Logging, connectedTo, Cloud Marketplace Integration>
+<Cloud Monitoring and Logging, connectedTo, Cloud Migration Strategy>
+<Cloud Monitoring and Logging, connectedTo, Software as a Service>
+<Cloud Monitoring and Logging, tags resources, Cloud Marketplace Integration>
+<Cloud Security, connectedTo, Cloud Architecture Design>
+<Cloud Vendor Lock_in Mitigation, connectedTo, Serverless Computing>
+<Compliance in Cloud, connectedTo, Cloud Firewall Configuration>
+<Compliance in Cloud, connectedTo, Cloud Marketplace Integration>
+<Compliance in Cloud, processes big data, Auto_Scaling Configurations>
+<Database as a Service, connectedTo, Cloud Marketplace Integration>
+<Database as a Service, connectedTo, Cloud Migration Strategy>
+<Database as a Service, connectedTo, Cloud Monitoring and Logging>
+<Database as a Service, connectedTo, Cloud Security>
+<Database as a Service, connectedTo, Software as a Service>
+<Hybrid Cloud Deployment, connectedTo, Software as a Service>
+<Serverless Computing, connectedTo, Software as a Service>
+<Software as a Service, connectedTo, Cloud Marketplace Integration>
diff --git a/test/diagrams/scanned_medium/diagrams_311.dot b/test/diagrams/scanned_medium/diagrams_311.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4fd5bbfa6ec4223af5ac1c8e1a7fdea4cf5fa186
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_311.dot
@@ -0,0 +1,69 @@
+digraph {
+	rankdir=RL
+	N0 [label="Hardware Procurement" color="#EAEFA5" fillcolor="#FDFCEB" shape=database style=filled]
+	N1 [label="Software Licensing Management" color="#BDAFA8" fillcolor="#E4E0DF" shape=rect style=filled]
+	N2 [label="User Account Management" color="#2196F3" fillcolor="#BBDEFB" shape=rectangle style=filled]
+	N3 [label="Group Policy Management" color="#BDAFA8" fillcolor="#E4E0DF" shape=hexagon style=filled]
+	N4 [label="Server Deployment" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+	N5 [label="Load Balancer Setup" color="#BDAFA8" fillcolor="#E4E0DF" shape=database style=filled]
+	N6 [label="Power and Cooling Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N7 [label="Database Administration" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	N8 [label="Antivirus and Endpoint Protection" color="#2196F3" fillcolor="#BBDEFB" shape=hexagon style=filled]
+	S0 [label="" color="#2196F3" fillcolor="#BBDEFB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Capacity Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Capacity Planning"
+		nest0_0 [label="Network Performance Tuning" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+		nest0_1 [label="Environmental Monitoring" color="#EAEFA5" fillcolor="#FDFCEB" shape=parallelogram style=filled]
+		nest0_2 [label="Patch Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	}
+	subgraph cluster_Rack and Cabinet Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Rack and Cabinet Management"
+		nest1_0 [label="Virtualization" color="#2196F3" fillcolor="#BBDEFB" shape=rectangle style=filled]
+		nest1_1 [label="Hardware Maintenance" color="#BDAFA8" fillcolor="#E4E0DF" shape=parallelogram style=filled]
+		nest1_2 [label="Web Server Configuration" color="#BDAFA8" fillcolor="#E4E0DF" shape=box style=filled]
+	}
+	N0 -> N1 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#EAEFA5" penwidth=1.5 style=solid label="ensures business continuity" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#EAEFA5" 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="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N4 [color="#2196F3" 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="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N8 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N5 -> S0 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#2196F3" penwidth=1.5 style=solid label="plans capacity" dir=forward]
+	N5 -> S1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#000000" penwidth=1.5 style=dashed label="manages storage" dir=forward]
+	N5 -> M0 [color="#2196F3" penwidth=1.5 style=dashed label="manages power" dir=forward]
+	N1 -> M0 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	M0 -> N7 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#EAEFA5" penwidth=1.5 style=dashed label="manages directories" dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N8 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	M2 -> N6 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_311.txt b/test/diagrams/scanned_medium/diagrams_311.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ba520e29b30587d577328414fa9988a630e9ebe5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_311.txt
@@ -0,0 +1,29 @@
+<Database Administration, connectedTo, Antivirus and Endpoint Protection>
+<Environmental Monitoring, connectedTo, Patch Management>
+<Group Policy Management, connectedTo, Power and Cooling Management>
+<Group Policy Management, connectedTo, Server Deployment>
+<Hardware Maintenance, connectedTo, Web Server Configuration>
+<Hardware Procurement, connectedTo, Antivirus and Endpoint Protection>
+<Hardware Procurement, connectedTo, Software Licensing Management>
+<Load Balancer Setup, connectedTo, Antivirus and Endpoint Protection>
+<Load Balancer Setup, ensures business continuity, Power and Cooling Management>
+<Load Balancer Setup, manages power, Database Administration>
+<Load Balancer Setup, manages storage, Database Administration>
+<Load Balancer Setup, plans capacity, Database Administration>
+<Network Performance Tuning, connectedTo, Environmental Monitoring>
+<Patch Management, connectedTo, Server Deployment>
+<Power and Cooling Management, connectedTo, Database Administration>
+<Power and Cooling Management, connectedTo, Network Performance Tuning>
+<Power and Cooling Management, manages directories, Antivirus and Endpoint Protection>
+<Server Deployment, connectedTo, Load Balancer Setup>
+<Server Deployment, connectedTo, Power and Cooling Management>
+<Server Deployment, connectedTo, Virtualization>
+<Software Licensing Management, connectedTo, Database Administration>
+<Software Licensing Management, connectedTo, Power and Cooling Management>
+<Software Licensing Management, connectedTo, User Account Management>
+<User Account Management, connectedTo, Antivirus and Endpoint Protection>
+<User Account Management, connectedTo, Database Administration>
+<User Account Management, connectedTo, Group Policy Management>
+<User Account Management, connectedTo, Power and Cooling Management>
+<Virtualization, connectedTo, Hardware Maintenance>
+<Web Server Configuration, connectedTo, Antivirus and Endpoint Protection>
diff --git a/test/diagrams/scanned_medium/diagrams_312.dot b/test/diagrams/scanned_medium/diagrams_312.dot
new file mode 100644
index 0000000000000000000000000000000000000000..567bb8964412788aff54f90a1da868a73435086b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_312.dot
@@ -0,0 +1,87 @@
+digraph {
+	rankdir=BT
+	N0 [label="Cloud Native Development" color="#FFC2C2" fillcolor="#FFEBEB" shape=action style=filled]
+	N1 [label="Containerization" color="#F06292" fillcolor="#FCE4EC" shape=document style=filled]
+	N2 [label="Cost Optimization in Cloud DevOps" color="#82DAFF" fillcolor="#C8EDFF" shape=rectangle style=filled]
+	N3 [label="Feature Flags" color="#FFC2C2" fillcolor="#FFEBEB" shape=multipledocuments style=filled]
+	N4 [label="Configuration Management" color="#82DAFF" fillcolor="#C8EDFF" shape=database style=filled]
+	N5 [label="Observability Implementation" color="#F06292" fillcolor="#FCE4EC" shape=rect style=filled]
+	N6 [label="Infrastructure Provisioning" color="#FFC2C2" fillcolor="#FFEBEB" shape=multipledocuments style=filled]
+	N7 [label="GitOps" color="#FFC2C2" fillcolor="#FFEBEB" shape=multipledocuments style=filled]
+	N8 [label="Blue_Green Deployments" color="#F06292" fillcolor="#FCE4EC" shape=document style=filled]
+	N9 [label="Site Reliability Engineering Principles" color="#FFC2C2" fillcolor="#FFEBEB" shape=rectangle style=filled]
+	N10 [label="Immutable Infrastructure" color="#82DAFF" fillcolor="#C8EDFF" shape=action style=filled]
+	N11 [label="Serverless Deployment" color="#F06292" fillcolor="#FCE4EC" shape=document style=filled]
+	N12 [label="ChatOps" color="#FFC2C2" fillcolor="#FFEBEB" shape=rectangle style=filled]
+	N13 [label="Infrastructure as Code" color="#F06292" fillcolor="#FCE4EC" shape=preparation style=filled]
+	N14 [label="Post_Mortem Analysis" color="#F06292" fillcolor="#FCE4EC" shape=action style=filled]
+	N15 [label="Monitoring and Logging" color="#82DAFF" fillcolor="#C8EDFF" shape=inputoutput style=filled]
+	N16 [label="Continuous Delivery" color="#82DAFF" fillcolor="#C8EDFF" shape=inputoutput style=filled]
+	S0 [label="" color="#FFC2C2" fillcolor="#FFEBEB" 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]
+	S2 [label="" color="#82DAFF" fillcolor="#C8EDFF" 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]
+	M1 [label="" color="#F06292" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Code Quality Checks {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Code Quality Checks"
+		nest0_0 [label="Static Code Analysis" color="#F06292" fillcolor="#FCE4EC" shape=preparation style=filled]
+		nest0_1 [label="Automated Testing" color="#FFC2C2" fillcolor="#FFEBEB" shape=inputoutput style=filled]
+		nest0_2 [label="Continuous Integration" color="#82DAFF" fillcolor="#C8EDFF" shape=diamond style=filled]
+	}
+	subgraph cluster_Performance Metrics Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Performance Metrics Analysis"
+		nest1_0 [label="Security in DevOps" color="#82DAFF" fillcolor="#C8EDFF" shape=predefinedprocess style=filled]
+		nest1_1 [label="Automated Deployment" color="#F06292" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+		nest1_2 [label="Secrets Management" color="#F06292" fillcolor="#FCE4EC" shape=predefinedprocess style=filled]
+		nest1_3 [label="Pipeline Automation" color="#F06292" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#F06292" 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="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#F06292" penwidth=1.5 style=solid label="gathers feedback" dir=forward]
+	nest0_1 -> nest0_2 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N7 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N7 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N13 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S2 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#F06292" penwidth=1.5 style=solid label="manages versions" dir=forward]
+	S2 -> N16 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#F06292" penwidth=1.5 style=solid label="automates quality" dir=forward]
+	M0 -> N4 [color="#FFC2C2" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=dashed label="builds cloud_native apps" dir=forward]
+	N7 -> M1 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_312.txt b/test/diagrams/scanned_medium/diagrams_312.txt
new file mode 100644
index 0000000000000000000000000000000000000000..84d26384ec2fd16aaa93a8958a2c178c9c19baa6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_312.txt
@@ -0,0 +1,40 @@
+<Automated Deployment, connectedTo, Secrets Management>
+<Automated Testing, connectedTo, Continuous Integration>
+<Blue_Green Deployments, connectedTo, Security in DevOps>
+<Blue_Green Deployments, connectedTo, Site Reliability Engineering Principles>
+<ChatOps, connectedTo, Infrastructure as Code>
+<Cloud Native Development, builds cloud_native apps, Immutable Infrastructure>
+<Cloud Native Development, connectedTo, Configuration Management>
+<Cloud Native Development, connectedTo, Containerization>
+<Configuration Management, connectedTo, Immutable Infrastructure>
+<Configuration Management, connectedTo, Observability Implementation>
+<Containerization, connectedTo, Configuration Management>
+<Containerization, connectedTo, Cost Optimization in Cloud DevOps>
+<Continuous Integration, connectedTo, GitOps>
+<Cost Optimization in Cloud DevOps, automates quality, Configuration Management>
+<Cost Optimization in Cloud DevOps, connectedTo, Continuous Delivery>
+<Cost Optimization in Cloud DevOps, connectedTo, Feature Flags>
+<Cost Optimization in Cloud DevOps, connectedTo, Immutable Infrastructure>
+<Cost Optimization in Cloud DevOps, connectedTo, Site Reliability Engineering Principles>
+<Cost Optimization in Cloud DevOps, manages versions, GitOps>
+<Feature Flags, connectedTo, Configuration Management>
+<GitOps, connectedTo, Blue_Green Deployments>
+<GitOps, connectedTo, Immutable Infrastructure>
+<Immutable Infrastructure, connectedTo, Serverless Deployment>
+<Infrastructure Provisioning, connectedTo, GitOps>
+<Infrastructure Provisioning, connectedTo, Immutable Infrastructure>
+<Infrastructure Provisioning, connectedTo, Static Code Analysis>
+<Infrastructure as Code, connectedTo, Continuous Delivery>
+<Infrastructure as Code, connectedTo, Monitoring and Logging>
+<Infrastructure as Code, connectedTo, Post_Mortem Analysis>
+<Monitoring and Logging, connectedTo, Continuous Delivery>
+<Observability Implementation, connectedTo, GitOps>
+<Observability Implementation, connectedTo, Infrastructure Provisioning>
+<Observability Implementation, connectedTo, Site Reliability Engineering Principles>
+<Pipeline Automation, connectedTo, GitOps>
+<Post_Mortem Analysis, connectedTo, Monitoring and Logging>
+<Secrets Management, connectedTo, Pipeline Automation>
+<Security in DevOps, connectedTo, Automated Deployment>
+<Serverless Deployment, connectedTo, ChatOps>
+<Site Reliability Engineering Principles, connectedTo, Immutable Infrastructure>
+<Static Code Analysis, gathers feedback, Automated Testing>
diff --git a/test/diagrams/scanned_medium/diagrams_313.txt b/test/diagrams/scanned_medium/diagrams_313.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9e3fd1f1d47548d245a64bcb7fe6a916405a0ece
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_313.txt
@@ -0,0 +1,34 @@
+<Architecture Planning, conducts code reviews, Requirements Gathering>
+<Backend Development, connectedTo, Web Application Development>
+<Cloud_Native Development, performs refactoring, Integration Testing>
+<Coding, connectedTo, Containerization>
+<Coding, connectedTo, Security Hardening>
+<Coding, connectedTo, System Design>
+<Coding, uses containers, Operating System Development>
+<Compiler Design, connectedTo, Embedded Systems Development>
+<Compiler Design, connectedTo, Operating System Development>
+<Containerization, connectedTo, Version Control>
+<Continuous Integration, connectedTo, Compiler Design>
+<Deployment, connectedTo, System Testing>
+<Documentation, connectedTo, User Experience Design>
+<Embedded Systems Development, connectedTo, Performance Optimization>
+<Game Development, connectedTo, Backend Development>
+<Game Development, connectedTo, Embedded Systems Development>
+<Game Development, connectedTo, User Interface Design>
+<Integration Testing, connectedTo, Documentation>
+<Microservices Architecture, connectedTo, Technical Debt Management>
+<Mobile Application Development, connectedTo, Deployment>
+<Mobile Application Development, connectedTo, Unit Testing>
+<Operating System Development, connectedTo, Architecture Planning>
+<Requirements Gathering, connectedTo, Coding>
+<Security Hardening, designs algorithms, Continuous Integration>
+<System Design, designs APIs, Containerization>
+<System Testing, connectedTo, System Design>
+<Technical Debt Management, connectedTo, Mobile Application Development>
+<Unit Testing, connectedTo, Game Development>
+<User Experience Design, connectedTo, Microservices Architecture>
+<User Experience Design, connectedTo, Unit Testing>
+<User Experience Design, connectedTo, User Interface Design>
+<User Interface Design, builds desktop apps, Operating System Development>
+<Version Control, connectedTo, Backend Development>
+<Web Application Development, connectedTo, Embedded Systems Development>
diff --git a/test/diagrams/scanned_medium/diagrams_314.dot b/test/diagrams/scanned_medium/diagrams_314.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c9ee394dcc885c05c9ad08b78ba457414b588256
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_314.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=RL
+	N0 [label="Mixed_Signal Design" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+	N1 [label="Failure Analysis" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+	N2 [label="Thermal Management" color="#E57373" fillcolor="#FFEBEE" shape=parallelogram style=filled]
+	N3 [label="Environmental Testing" color="#6EB76D" fillcolor="#E9F7E8" shape=vnode_shape style=filled]
+	N4 [label="PCB Layout" color="#6EB76D" fillcolor="#E9F7E8" shape=database style=filled]
+	N5 [label="Material Selection" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N6 [label="Cost Optimization" color="#E57373" fillcolor="#FFEBEE" shape=multipledocuments style=filled]
+	N7 [label="Troubleshooting and Debugging" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+	N8 [label="Sensor Integration" color="#6EB76D" fillcolor="#E9F7E8" shape=parallelogram style=filled]
+	N9 [label="Regulatory Compliance" color="#B0C5CD" fillcolor="#DFE7EB" shape=ellipse style=filled]
+	N10 [label="Optical Module Design" color="#B0C5CD" fillcolor="#DFE7EB" shape=ellipse style=filled]
+	N11 [label="Reverse Engineering" color="#E57373" fillcolor="#FFEBEE" shape=rect style=filled]
+	N12 [label="Assembly Line Optimization" color="#B0C5CD" fillcolor="#DFE7EB" shape=vnode_shape style=filled]
+	N13 [label="Mechanical Design Integration" color="#6EB76D" fillcolor="#E9F7E8" shape=vnode_shape style=filled]
+	N14 [label="Reliability Testing" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+	S0 [label="" color="#B0C5CD" fillcolor="#DFE7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#E57373" fillcolor="#FFEBEE" 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="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#E57373" fillcolor="#FFEBEE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Intellectual Property Protection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Intellectual Property Protection"
+		nest0_0 [label="Prototyping" color="#E57373" fillcolor="#FFEBEE" shape=database style=filled]
+		nest0_1 [label="Enclosure Design" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+		nest0_2 [label="Testing and Validation" color="#B0C5CD" fillcolor="#DFE7EB" shape=database style=filled]
+		nest0_3 [label="Test Fixture Design" color="#B0C5CD" fillcolor="#DFE7EB" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_High_Speed Digital Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="High_Speed Digital Design"
+		nest1_0 [label="Electromagnetic Compatibility Testing" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+		nest1_1 [label="Supply Chain Management for Components" color="#B0C5CD" fillcolor="#DFE7EB" shape=action style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="designs fixtures" dir=forward]
+	N1 -> N2 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#E57373" 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=solid label="creates documentation" dir=forward]
+	N8 -> N9 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed label="designs circuits" dir=forward]
+	N11 -> N12 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#E57373" penwidth=1.5 style=dashed label="optimizes costs" dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N3 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#6EB76D" penwidth=1.5 style=dashed label="manages cables" dir=forward]
+	N5 -> nest1_0 [color="#E57373" penwidth=1.5 style=dashed label="troubleshoots issues" dir=forward]
+	nest1_1 -> N10 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N11 -> S0 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N1 -> S2 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N3 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N14 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N6 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_314.txt b/test/diagrams/scanned_medium/diagrams_314.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a6d6e7b99cbf0e654b4c8260ae057d539d485de7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_314.txt
@@ -0,0 +1,35 @@
+<Assembly Line Optimization, optimizes costs, Mechanical Design Integration>
+<Cost Optimization, connectedTo, Troubleshooting and Debugging>
+<Electromagnetic Compatibility Testing, manages cables, Supply Chain Management for Components>
+<Enclosure Design, connectedTo, Testing and Validation>
+<Environmental Testing, connectedTo, Cost Optimization>
+<Environmental Testing, connectedTo, Material Selection>
+<Environmental Testing, connectedTo, PCB Layout>
+<Failure Analysis, connectedTo, Environmental Testing>
+<Failure Analysis, connectedTo, Optical Module Design>
+<Failure Analysis, connectedTo, Reliability Testing>
+<Failure Analysis, connectedTo, Thermal Management>
+<Material Selection, connectedTo, Cost Optimization>
+<Material Selection, troubleshoots issues, Electromagnetic Compatibility Testing>
+<Mechanical Design Integration, connectedTo, Reliability Testing>
+<Mixed_Signal Design, connectedTo, Cost Optimization>
+<Mixed_Signal Design, connectedTo, Material Selection>
+<Mixed_Signal Design, designs fixtures, Failure Analysis>
+<Optical Module Design, designs circuits, Reverse Engineering>
+<PCB Layout, connectedTo, Material Selection>
+<Prototyping, connectedTo, Enclosure Design>
+<Regulatory Compliance, connectedTo, Optical Module Design>
+<Reverse Engineering, connectedTo, Assembly Line Optimization>
+<Reverse Engineering, connectedTo, Mechanical Design Integration>
+<Reverse Engineering, connectedTo, Reliability Testing>
+<Sensor Integration, connectedTo, Regulatory Compliance>
+<Supply Chain Management for Components, connectedTo, Optical Module Design>
+<Test Fixture Design, connectedTo, Environmental Testing>
+<Testing and Validation, connectedTo, Test Fixture Design>
+<Thermal Management, connectedTo, Environmental Testing>
+<Thermal Management, connectedTo, Material Selection>
+<Troubleshooting and Debugging, connectedTo, Assembly Line Optimization>
+<Troubleshooting and Debugging, connectedTo, Prototyping>
+<Troubleshooting and Debugging, connectedTo, Regulatory Compliance>
+<Troubleshooting and Debugging, connectedTo, Reliability Testing>
+<Troubleshooting and Debugging, creates documentation, Sensor Integration>
diff --git a/test/diagrams/scanned_medium/diagrams_315.dot b/test/diagrams/scanned_medium/diagrams_315.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b19aa769404004618c68e7ce95c72233d1986f37
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_315.dot
@@ -0,0 +1,67 @@
+digraph {
+	rankdir=RL
+	N0 [label="Wearable Device Integration" color="#A1887F" fillcolor="#EFEBE9" shape=database style=filled]
+	N1 [label="Testing and Debugging" color="#A1887F" fillcolor="#EFEBE9" shape=action style=filled]
+	N2 [label="Cross_Platform Development" color="#2196F3" fillcolor="#BBDEFB" shape=rectangle style=filled]
+	N3 [label="Camera Integration" color="#388E3C" fillcolor="#C8E6C9" shape=action style=filled]
+	N4 [label="Deep Linking" color="#A1887F" fillcolor="#EFEBE9" shape=inputoutput style=filled]
+	N5 [label="Performance Optimization" color="#388E3C" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N6 [label="Concept Development" color="#A1887F" fillcolor="#EFEBE9" shape=multipledocuments style=filled]
+	N7 [label="User Interface Design" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N8 [label="AR or VR Features in Mobile" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	N9 [label="Deployment to App Stores" color="#388E3C" fillcolor="#C8E6C9" shape=database style=filled]
+	S0 [label="" color="#A1887F" fillcolor="#EFEBE9" 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="#388E3C" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Real_time Communication Features {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Real_time Communication Features"
+		nest0_0 [label="Analytics Tracking" color="#2196F3" fillcolor="#BBDEFB" shape=rect style=filled]
+		nest0_1 [label="Offline Mode Development" color="#388E3C" fillcolor="#C8E6C9" shape=hexagon style=filled]
+		nest0_2 [label="Gamification Elements" color="#388E3C" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+		nest0_3 [label="Backend Integration" color="#2196F3" fillcolor="#BBDEFB" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Chat Functionality {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Chat Functionality"
+		nest1_0 [label="Crash Reporting" color="#A1887F" fillcolor="#EFEBE9" shape=inputoutput style=filled]
+		nest1_1 [label="Accessibility Features" color="#A1887F" fillcolor="#EFEBE9" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#2196F3" 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 label="gathers feedback" dir=forward]
+	nest0_2 -> nest0_3 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N6 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest1_0 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N5 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N6 -> S0 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N2 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N5 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N8 [color="#A1887F" penwidth=1.5 style=solid label="designs UIs" dir=forward]
+	N2 -> M0 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_315.txt b/test/diagrams/scanned_medium/diagrams_315.txt
new file mode 100644
index 0000000000000000000000000000000000000000..596a3b013ac1720150f18cd9226116dd08f726f0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_315.txt
@@ -0,0 +1,29 @@
+<AR or VR Features in Mobile, connectedTo, Analytics Tracking>
+<AR or VR Features in Mobile, connectedTo, Deployment to App Stores>
+<Accessibility Features, connectedTo, Performance Optimization>
+<Analytics Tracking, connectedTo, Offline Mode Development>
+<Backend Integration, connectedTo, Concept Development>
+<Camera Integration, connectedTo, AR or VR Features in Mobile>
+<Camera Integration, connectedTo, Concept Development>
+<Camera Integration, connectedTo, Deep Linking>
+<Camera Integration, connectedTo, Deployment to App Stores>
+<Camera Integration, connectedTo, Performance Optimization>
+<Camera Integration, connectedTo, User Interface Design>
+<Concept Development, connectedTo, AR or VR Features in Mobile>
+<Concept Development, connectedTo, Deployment to App Stores>
+<Concept Development, connectedTo, User Interface Design>
+<Crash Reporting, connectedTo, Accessibility Features>
+<Cross_Platform Development, connectedTo, Camera Integration>
+<Cross_Platform Development, connectedTo, Performance Optimization>
+<Cross_Platform Development, connectedTo, User Interface Design>
+<Cross_Platform Development, designs UIs, AR or VR Features in Mobile>
+<Deep Linking, connectedTo, Performance Optimization>
+<Gamification Elements, connectedTo, Backend Integration>
+<Offline Mode Development, gathers feedback, Gamification Elements>
+<Performance Optimization, connectedTo, Concept Development>
+<Performance Optimization, connectedTo, Crash Reporting>
+<Testing and Debugging, connectedTo, Cross_Platform Development>
+<Testing and Debugging, connectedTo, Performance Optimization>
+<User Interface Design, connectedTo, AR or VR Features in Mobile>
+<Wearable Device Integration, connectedTo, Performance Optimization>
+<Wearable Device Integration, connectedTo, Testing and Debugging>
diff --git a/test/diagrams/scanned_medium/diagrams_316.dot b/test/diagrams/scanned_medium/diagrams_316.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1c3d268aea89781da781bcec8593bdcf4e4ea652
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_316.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=TB
+	N0 [label="Partnership Management on Social" color="#4FC3F7" fillcolor="#E1F5FE" shape=inputoutput style=filled]
+	N1 [label="User_Generated Content Curation" color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+	N2 [label="Crisis Communication Plan" color="#80DDEA" fillcolor="#D3F7F9" shape=multipledocuments style=filled]
+	N3 [label="Crisis Management" color="#4FC3F7" fillcolor="#E1F5FE" shape=predefinedprocess style=filled]
+	N4 [label="Trend Monitoring" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N5 [label="Paid Social Media Advertising" color="#4FC3F7" fillcolor="#E1F5FE" shape=multipledocuments style=filled]
+	N6 [label="Hashtag Research" color="#CD8FF2" fillcolor="#ECCFF5" shape=rect style=filled]
+	N7 [label="Reputation Management" color="#4FC3F7" fillcolor="#E1F5FE" shape=rectangle style=filled]
+	N8 [label="Direct Messaging Strategy" color="#80DDEA" fillcolor="#D3F7F9" shape=parallelogram style=filled]
+	N9 [label="Polls and Quizzes Creation" color="#80DDEA" fillcolor="#D3F7F9" shape=action style=filled]
+	N10 [label="Follower Growth Monitoring" color="#80DDEA" fillcolor="#D3F7F9" shape=database style=filled]
+	N11 [label="Content Creation" color="#4FC3F7" fillcolor="#E1F5FE" shape=hexagon style=filled]
+	N12 [label="Campaign Management" color="#CD8FF2" fillcolor="#ECCFF5" shape=preparation style=filled]
+	S0 [label="" color="#4FC3F7" fillcolor="#E1F5FE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#4FC3F7" fillcolor="#E1F5FE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#80DDEA" fillcolor="#D3F7F9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#4FC3F7" fillcolor="#E1F5FE" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Audience Engagement {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Audience Engagement"
+		nest0_0 [label="Content Moderation" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+		nest0_1 [label="Social Listening" color="#4FC3F7" fillcolor="#E1F5FE" shape=preparation style=filled]
+		nest0_2 [label="Content Strategy" color="#4FC3F7" fillcolor="#E1F5FE" shape=document style=filled]
+		nest0_3 [label="Social Media Audits" color="#4FC3F7" fillcolor="#E1F5FE" shape=action style=filled]
+	}
+	subgraph cluster_Ethical Use of Social Media {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ethical Use of Social Media"
+		nest1_0 [label="Group Management" color="#4FC3F7" fillcolor="#E1F5FE" shape=hexagon style=filled]
+		nest1_1 [label="Reporting and Optimization" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+		nest1_2 [label="Customer Service on Social Media" color="#80DDEA" fillcolor="#D3F7F9" shape=document style=filled]
+		nest1_3 [label="Reels or Short Video Production" color="#80DDEA" fillcolor="#D3F7F9" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#CD8FF2" 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="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" 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 label="manages profiles" dir=forward]
+	N9 -> N10 [color="#CD8FF2" 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]
+	nest0_0 -> nest0_1 [color="#80DDEA" penwidth=1.5 style=dashed label="measures reach" dir=forward]
+	nest0_1 -> nest0_2 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N10 -> nest0_0 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N11 [color="#4FC3F7" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#80DDEA" penwidth=1.5 style=dashed label="runs polls" dir=forward]
+	nest1_2 -> nest1_3 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N12 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N8 -> S0 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#4FC3F7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N8 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#CD8FF2" penwidth=1.5 style=dashed label="selects platforms" dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+	N5 -> M0 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_316.txt b/test/diagrams/scanned_medium/diagrams_316.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c74579f41311dd99c763c3d8c4d05e435d35eb71
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_316.txt
@@ -0,0 +1,33 @@
+<Content Creation, connectedTo, Campaign Management>
+<Content Moderation, measures reach, Social Listening>
+<Content Strategy, connectedTo, Social Media Audits>
+<Crisis Communication Plan, connectedTo, Crisis Management>
+<Crisis Communication Plan, connectedTo, Reputation Management>
+<Crisis Communication Plan, connectedTo, Trend Monitoring>
+<Crisis Management, connectedTo, Reputation Management>
+<Crisis Management, connectedTo, Trend Monitoring>
+<Customer Service on Social Media, connectedTo, Reels or Short Video Production>
+<Direct Messaging Strategy, connectedTo, Campaign Management>
+<Direct Messaging Strategy, connectedTo, Content Creation>
+<Direct Messaging Strategy, connectedTo, Follower Growth Monitoring>
+<Direct Messaging Strategy, manages profiles, Polls and Quizzes Creation>
+<Follower Growth Monitoring, connectedTo, Content Creation>
+<Follower Growth Monitoring, connectedTo, Content Moderation>
+<Group Management, connectedTo, Reporting and Optimization>
+<Hashtag Research, connectedTo, Direct Messaging Strategy>
+<Hashtag Research, connectedTo, Reputation Management>
+<Hashtag Research, selects platforms, Polls and Quizzes Creation>
+<Paid Social Media Advertising, connectedTo, Hashtag Research>
+<Paid Social Media Advertising, connectedTo, Reputation Management>
+<Partnership Management on Social, connectedTo, Reputation Management>
+<Partnership Management on Social, connectedTo, User_Generated Content Curation>
+<Polls and Quizzes Creation, connectedTo, Follower Growth Monitoring>
+<Reels or Short Video Production, connectedTo, Campaign Management>
+<Reporting and Optimization, runs polls, Customer Service on Social Media>
+<Reputation Management, connectedTo, Direct Messaging Strategy>
+<Reputation Management, connectedTo, Group Management>
+<Social Listening, connectedTo, Content Strategy>
+<Social Media Audits, connectedTo, Content Creation>
+<Trend Monitoring, connectedTo, Paid Social Media Advertising>
+<User_Generated Content Curation, connectedTo, Crisis Communication Plan>
+<User_Generated Content Curation, connectedTo, Trend Monitoring>
diff --git a/test/diagrams/scanned_medium/diagrams_317.dot b/test/diagrams/scanned_medium/diagrams_317.dot
new file mode 100644
index 0000000000000000000000000000000000000000..80e93db9a8927dba57c9c670b31c4f0961f9971a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_317.dot
@@ -0,0 +1,56 @@
+digraph {
+	rankdir=TB
+	N0 [label="Search Result Display" color="#FFF8A6" fillcolor="#FFFDE0" shape=diamond style=filled]
+	N1 [label="Personalized Search Results" color="#61CAC3" fillcolor="#C2E8E6" shape=predefinedprocess style=filled]
+	N2 [label="Competitor Keyword Analysis" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N3 [label="Ranking Algorithms" color="#61CAC3" fillcolor="#C2E8E6" shape=ellipse style=filled]
+	N4 [label="Negative SEO Prevention" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N5 [label="International SEO" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N6 [label="On_Page SEO" color="#FFF8A6" fillcolor="#FFFDE0" shape=rect style=filled]
+	N7 [label="Featured Snippets Optimization" color="#5C6BC0" fillcolor="#E8EAF6" shape=action style=filled]
+	N8 [label="Google Analytics Integration" color="#5C6BC0" fillcolor="#E8EAF6" shape=rect style=filled]
+	S0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" 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="#61CAC3" fillcolor="#C2E8E6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Paid Search Advertising {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Paid Search Advertising"
+		nest0_0 [label="Google My Business Management" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+		nest0_1 [label="Image Search" color="#FFF8A6" fillcolor="#FFFDE0" shape=preparation style=filled]
+		nest0_2 [label="Indexing Content" color="#FFF8A6" fillcolor="#FFFDE0" shape=rectangle style=filled]
+		nest0_3 [label="Voice Search Optimization" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	}
+	subgraph cluster_Technical SEO {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Technical SEO"
+		nest1_0 [label="Knowledge Graph Integration" color="#61CAC3" fillcolor="#C2E8E6" shape=diamond style=filled]
+		nest1_1 [label="Core Web Vitals Optimization" color="#FFF8A6" fillcolor="#FFFDE0" 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=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="manages technical SEO" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#61CAC3" penwidth=1.5 style=dashed label="manages SEM" dir=forward]
+	N6 -> N7 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#5C6BC0" 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="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#5C6BC0" penwidth=1.5 style=dashed label="optimizes keywords" dir=forward]
+	nest0_3 -> N7 [color="#FFF8A6" penwidth=1.5 style=dashed label="monitors rankings" dir=forward]
+	nest1_0 -> nest1_1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest1_0 [color="#FFF8A6" penwidth=1.5 style=solid label="processes updates" dir=forward]
+	nest1_1 -> N6 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> S2 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	S2 -> N6 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_317.txt b/test/diagrams/scanned_medium/diagrams_317.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1e45649e140b56f77c13416ab9b0713627b127cf
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_317.txt
@@ -0,0 +1,22 @@
+<Competitor Keyword Analysis, connectedTo, Ranking Algorithms>
+<Core Web Vitals Optimization, connectedTo, On_Page SEO>
+<Featured Snippets Optimization, connectedTo, Google Analytics Integration>
+<Google My Business Management, connectedTo, Image Search>
+<Image Search, connectedTo, Indexing Content>
+<Indexing Content, connectedTo, Voice Search Optimization>
+<International SEO, manages SEM, On_Page SEO>
+<Knowledge Graph Integration, connectedTo, Core Web Vitals Optimization>
+<Negative SEO Prevention, connectedTo, International SEO>
+<Negative SEO Prevention, processes updates, Knowledge Graph Integration>
+<On_Page SEO, connectedTo, Featured Snippets Optimization>
+<On_Page SEO, optimizes keywords, Google My Business Management>
+<Personalized Search Results, connectedTo, Competitor Keyword Analysis>
+<Personalized Search Results, connectedTo, International SEO>
+<Personalized Search Results, connectedTo, On_Page SEO>
+<Ranking Algorithms, manages technical SEO, Negative SEO Prevention>
+<Search Result Display, connectedTo, Google Analytics Integration>
+<Search Result Display, connectedTo, International SEO>
+<Search Result Display, connectedTo, On_Page SEO>
+<Search Result Display, connectedTo, Personalized Search Results>
+<Search Result Display, connectedTo, Ranking Algorithms>
+<Voice Search Optimization, monitors rankings, Featured Snippets Optimization>
diff --git a/test/diagrams/scanned_medium/diagrams_318.dot b/test/diagrams/scanned_medium/diagrams_318.dot
new file mode 100644
index 0000000000000000000000000000000000000000..648d5ccd1bdbf2608e69d72eecc847f48fd03a89
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_318.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=BT
+	N0 [label="Customer Identity and Access Management" color="#8C9EFF" fillcolor="#D3D7EB" shape=rectangle style=filled]
+	N1 [label="KYC Integration" color="#66BB6A" fillcolor="#E8F5E9" shape=predefinedprocess style=filled]
+	N2 [label="User Provisioning" color="#8C9EFF" fillcolor="#D3D7EB" shape=database style=filled]
+	N3 [label="Compliance with Data Protection Regulations" color="#9FA9E1" fillcolor="#D6D9F0" shape=parallelogram style=filled]
+	N4 [label="Credential Management" color="#8C9EFF" fillcolor="#D3D7EB" shape=preparation style=filled]
+	N5 [label="Verifiable Credentials" color="#66BB6A" fillcolor="#E8F5E9" shape=inputoutput style=filled]
+	N6 [label="Attribute Management" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	N7 [label="Non_Repudiation" color="#9FA9E1" fillcolor="#D6D9F0" shape=diamond style=filled]
+	N8 [label="Risk_Based Authentication" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	N9 [label="Data Minimization Principles" color="#8C9EFF" fillcolor="#D3D7EB" shape=rect style=filled]
+	N10 [label="Identity Verification" color="#9FA9E1" fillcolor="#D6D9F0" shape=rectangle style=filled]
+	N11 [label="Blockchain_based Identity" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	N12 [label="Federated Identity Management" color="#66BB6A" fillcolor="#E8F5E9" shape=predefinedprocess style=filled]
+	N13 [label="Decentralized Identifiers" color="#9FA9E1" fillcolor="#D6D9F0" shape=preparation style=filled]
+	N14 [label="Digital Wallets for Identity" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N15 [label="Biometric Authentication" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+	N16 [label="Authentication" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+	N17 [label="Authorization" color="#8C9EFF" fillcolor="#D3D7EB" shape=ellipse style=filled]
+	S0 [label="" color="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#8C9EFF" fillcolor="#D3D7EB" 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_Access Governance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Access Governance"
+		nest0_0 [label="Fraud Detection in Identity" color="#8C9EFF" fillcolor="#D3D7EB" shape=parallelogram style=filled]
+		nest0_1 [label="Digital Signatures" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+		nest0_2 [label="Data Encryption for Identity" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	}
+	subgraph cluster_Social Login Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Social Login Integration"
+		nest1_0 [label="Portable Identities" color="#9FA9E1" fillcolor="#D6D9F0" shape=action style=filled]
+		nest1_1 [label="Password Management" color="#66BB6A" fillcolor="#E8F5E9" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#8C9EFF" penwidth=1.5 style=solid 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="#9FA9E1" penwidth=1.5 style=solid 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="#9FA9E1" 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=dashed dir=forward]
+	N9 -> N10 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#66BB6A" penwidth=1.5 style=dashed label="performs KYCs" dir=forward]
+	N16 -> nest0_0 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N1 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N6 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N12 -> S0 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	N0 -> S1 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N17 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#8C9EFF" penwidth=1.5 style=solid dir=forward]
+	M1 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_318.txt b/test/diagrams/scanned_medium/diagrams_318.txt
new file mode 100644
index 0000000000000000000000000000000000000000..70204b1acade46a05daec420630d9c10e7e1eff4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_318.txt
@@ -0,0 +1,33 @@
+<Attribute Management, connectedTo, Federated Identity Management>
+<Attribute Management, connectedTo, Non_Repudiation>
+<Authentication, connectedTo, Authorization>
+<Authentication, connectedTo, Fraud Detection in Identity>
+<Biometric Authentication, connectedTo, Authentication>
+<Blockchain_based Identity, connectedTo, Federated Identity Management>
+<Compliance with Data Protection Regulations, connectedTo, Credential Management>
+<Credential Management, connectedTo, Federated Identity Management>
+<Credential Management, connectedTo, Verifiable Credentials>
+<Customer Identity and Access Management, connectedTo, Authorization>
+<Customer Identity and Access Management, connectedTo, Digital Wallets for Identity>
+<Customer Identity and Access Management, connectedTo, Federated Identity Management>
+<Customer Identity and Access Management, connectedTo, Identity Verification>
+<Customer Identity and Access Management, connectedTo, KYC Integration>
+<Data Encryption for Identity, connectedTo, KYC Integration>
+<Data Minimization Principles, connectedTo, Identity Verification>
+<Decentralized Identifiers, connectedTo, Digital Wallets for Identity>
+<Digital Signatures, performs KYCs, Data Encryption for Identity>
+<Digital Wallets for Identity, connectedTo, Biometric Authentication>
+<Federated Identity Management, connectedTo, Biometric Authentication>
+<Federated Identity Management, connectedTo, Decentralized Identifiers>
+<Federated Identity Management, connectedTo, Digital Wallets for Identity>
+<Fraud Detection in Identity, connectedTo, Digital Signatures>
+<Identity Verification, connectedTo, Blockchain_based Identity>
+<KYC Integration, connectedTo, Federated Identity Management>
+<KYC Integration, connectedTo, User Provisioning>
+<Non_Repudiation, connectedTo, Risk_Based Authentication>
+<Password Management, connectedTo, Attribute Management>
+<Portable Identities, connectedTo, Password Management>
+<Risk_Based Authentication, connectedTo, Data Minimization Principles>
+<Risk_Based Authentication, connectedTo, Portable Identities>
+<User Provisioning, connectedTo, Compliance with Data Protection Regulations>
+<Verifiable Credentials, connectedTo, Attribute Management>
diff --git a/test/diagrams/scanned_medium/diagrams_319.dot b/test/diagrams/scanned_medium/diagrams_319.dot
new file mode 100644
index 0000000000000000000000000000000000000000..92d7a31b26bd45750c60dada01fede7382c54cc5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_319.dot
@@ -0,0 +1,76 @@
+digraph {
+	rankdir=BT
+	N0 [label="Content Creation" color="#9C27B0" fillcolor="#E1BEE7" shape=hexagon style=filled]
+	N1 [label="Bootcamp Development" color="#C0CA33" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N2 [label="Student Engagement Strategies" color="#BDAFA8" fillcolor="#E4E0DF" shape=rect style=filled]
+	N3 [label="Virtual Labs and Simulations" color="#9C27B0" fillcolor="#E1BEE7" shape=diamond style=filled]
+	N4 [label="Instructor Training" color="#9C27B0" fillcolor="#E1BEE7" shape=action style=filled]
+	N5 [label="Micro_credential Programs" color="#BDAFA8" fillcolor="#E4E0DF" shape=parallelogram style=filled]
+	N6 [label="Parent or Guardian Communication" color="#9C27B0" fillcolor="#E1BEE7" shape=database style=filled]
+	N7 [label="Student Progress Tracking" color="#9C27B0" fillcolor="#E1BEE7" shape=vnode_shape style=filled]
+	N8 [label="Course Design" color="#BDAFA8" fillcolor="#E4E0DF" shape=vnode_shape style=filled]
+	N9 [label="Learning Management System Administration" color="#C0CA33" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N10 [label="Asynchronous Learning" color="#9C27B0" fillcolor="#E1BEE7" shape=database style=filled]
+	N11 [label="Certification Issuance" color="#BDAFA8" fillcolor="#E4E0DF" shape=multipledocuments style=filled]
+	N12 [label="Enrollment and Retention Strategies" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+	N13 [label="Accessibility Features" color="#BDAFA8" fillcolor="#E4E0DF" shape=inputoutput style=filled]
+	S0 [label="" color="#BDAFA8" fillcolor="#E4E0DF" 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]
+	S2 [label="" color="#BDAFA8" fillcolor="#E4E0DF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#9C27B0" fillcolor="#E1BEE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Course Evaluation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Course Evaluation"
+		nest0_0 [label="Online Tutoring" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+		nest0_1 [label="Virtual Field Trips" color="#C0CA33" fillcolor="#F9FBE7" shape=diamond style=filled]
+		nest0_2 [label="Adaptive Learning Technologies" color="#C0CA33" fillcolor="#F9FBE7" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Peer_to_Peer Learning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Peer_to_Peer Learning"
+		nest1_0 [label="Synchronous Learning" color="#C0CA33" fillcolor="#F9FBE7" shape=rect style=filled]
+		nest1_1 [label="Technical Support for Students" color="#C0CA33" fillcolor="#F9FBE7" shape=vnode_shape style=filled]
+		nest1_2 [label="Interactive Learning Activities" color="#C0CA33" fillcolor="#F9FBE7" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#BDAFA8" penwidth=1.5 style=solid label="simulates labs" dir=forward]
+	N4 -> N5 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#9C27B0" penwidth=1.5 style=solid label="engages parents" dir=forward]
+	N8 -> N9 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest0_0 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N2 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest1_0 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N12 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N0 -> S0 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#9C27B0" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#9C27B0" penwidth=1.5 style=dashed label="supports competency_based" dir=forward]
+	S1 -> N8 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#BDAFA8" penwidth=1.5 style=dashed label="trains educators" dir=forward]
+	N4 -> S2 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N13 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N13 [color="#C0CA33" 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 -> N4 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_319.txt b/test/diagrams/scanned_medium/diagrams_319.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ec387cc7ed353112dc8c981d3fed955022a7155e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_319.txt
@@ -0,0 +1,33 @@
+<Adaptive Learning Technologies, connectedTo, Student Engagement Strategies>
+<Asynchronous Learning, connectedTo, Certification Issuance>
+<Bootcamp Development, connectedTo, Student Engagement Strategies>
+<Certification Issuance, connectedTo, Enrollment and Retention Strategies>
+<Content Creation, connectedTo, Bootcamp Development>
+<Content Creation, connectedTo, Instructor Training>
+<Content Creation, connectedTo, Micro_credential Programs>
+<Content Creation, connectedTo, Student Progress Tracking>
+<Course Design, connectedTo, Accessibility Features>
+<Course Design, connectedTo, Learning Management System Administration>
+<Enrollment and Retention Strategies, connectedTo, Accessibility Features>
+<Instructor Training, connectedTo, Accessibility Features>
+<Instructor Training, connectedTo, Micro_credential Programs>
+<Instructor Training, connectedTo, Student Progress Tracking>
+<Interactive Learning Activities, connectedTo, Enrollment and Retention Strategies>
+<Learning Management System Administration, connectedTo, Asynchronous Learning>
+<Micro_credential Programs, connectedTo, Accessibility Features>
+<Micro_credential Programs, connectedTo, Parent or Guardian Communication>
+<Online Tutoring, connectedTo, Virtual Field Trips>
+<Parent or Guardian Communication, connectedTo, Asynchronous Learning>
+<Parent or Guardian Communication, connectedTo, Course Design>
+<Parent or Guardian Communication, connectedTo, Student Progress Tracking>
+<Parent or Guardian Communication, supports competency_based, Accessibility Features>
+<Parent or Guardian Communication, trains educators, Learning Management System Administration>
+<Student Engagement Strategies, connectedTo, Instructor Training>
+<Student Engagement Strategies, connectedTo, Virtual Labs and Simulations>
+<Student Progress Tracking, connectedTo, Online Tutoring>
+<Student Progress Tracking, engages parents, Course Design>
+<Synchronous Learning, connectedTo, Technical Support for Students>
+<Technical Support for Students, connectedTo, Interactive Learning Activities>
+<Virtual Field Trips, connectedTo, Adaptive Learning Technologies>
+<Virtual Labs and Simulations, connectedTo, Synchronous Learning>
+<Virtual Labs and Simulations, simulates labs, Instructor Training>
diff --git a/test/diagrams/scanned_medium/diagrams_32.dot b/test/diagrams/scanned_medium/diagrams_32.dot
new file mode 100644
index 0000000000000000000000000000000000000000..570422ee74ea005c7a1c362df6a62733d73d7b7f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_32.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=BT
+	N0 [label="Design Sketching" color="#64B5F6" fillcolor="#E3F2FD" shape=rect style=filled]
+	N1 [label="Customer Feedback Analysis" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N2 [label="Wholesale Distribution" color="#64B5F6" fillcolor="#E3F2FD" shape=predefinedprocess style=filled]
+	N3 [label="Garment Fitting Session" color="#5C6BC0" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	N4 [label="Embroidery and Embellishment" color="#5C6BC0" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	N5 [label="Intellectual Property Protection" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N6 [label="Ready_to_Wear Collection Launch" color="#64B5F6" fillcolor="#E3F2FD" shape=inputoutput style=filled]
+	N7 [label="Distribution" color="#5C6BC0" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N8 [label="Seasonal Collection Planning" color="#EAEFA5" fillcolor="#FDFCEB" shape=vnode_shape style=filled]
+	N9 [label="Retail Store Merchandising" color="#5C6BC0" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N10 [label="Sample Creation" color="#5C6BC0" fillcolor="#E8EAF6" shape=database style=filled]
+	N0 -> N1 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#5C6BC0" penwidth=1.5 style=solid label="audits" dir=forward]
+	N2 -> N3 [color="#5C6BC0" penwidth=1.5 style=solid label="samples" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="patterns" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="sells" dir=forward]
+	N5 -> N6 [color="#EAEFA5" penwidth=1.5 style=solid label="recycles" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#EAEFA5" penwidth=1.5 style=dashed label="advises" dir=forward]
+	N8 -> N9 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#5C6BC0" penwidth=1.5 style=solid label="brands" dir=forward]
+	N8 -> N7 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_32.txt b/test/diagrams/scanned_medium/diagrams_32.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a0afc6e90ca81f89da8a1fec77c08fcf75f2eea6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_32.txt
@@ -0,0 +1,11 @@
+<Customer Feedback Analysis, audits, Wholesale Distribution>
+<Design Sketching, connectedTo, Customer Feedback Analysis>
+<Distribution, advises, Seasonal Collection Planning>
+<Embroidery and Embellishment, sells, Intellectual Property Protection>
+<Garment Fitting Session, patterns, Embroidery and Embellishment>
+<Intellectual Property Protection, recycles, Ready_to_Wear Collection Launch>
+<Ready_to_Wear Collection Launch, connectedTo, Distribution>
+<Retail Store Merchandising, brands, Sample Creation>
+<Seasonal Collection Planning, connectedTo, Distribution>
+<Seasonal Collection Planning, connectedTo, Retail Store Merchandising>
+<Wholesale Distribution, samples, Garment Fitting Session>
diff --git a/test/diagrams/scanned_medium/diagrams_320.dot b/test/diagrams/scanned_medium/diagrams_320.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4480868ea5ac0078523efaf167e55e5f5c954438
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_320.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=TB
+	N0 [label="Continuous Course Improvement" color="#FFDA4E" fillcolor="#FFE88D" shape=document style=filled]
+	N1 [label="Specialization or Professional Certificate Programs" color="#81C784" fillcolor="#F1F8E9" shape=action style=filled]
+	N2 [label="Global Accessibility Features" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N3 [label="Certificate of Completion Issuance" color="#FFDA4E" fillcolor="#FFE88D" shape=preparation style=filled]
+	N4 [label="Corporate Training Solutions" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	N5 [label="Industry Collaboration for Content" color="#81C784" fillcolor="#F1F8E9" shape=action style=filled]
+	N6 [label="Peer Grading Implementation" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+	N7 [label="Content Licensing" color="#6EB76D" fillcolor="#E9F7E8" shape=multipledocuments style=filled]
+	N8 [label="Research on MOOC Effectiveness" color="#81C784" fillcolor="#F1F8E9" shape=multipledocuments style=filled]
+	N9 [label="University Partnerships" color="#81C784" fillcolor="#F1F8E9" shape=vnode_shape style=filled]
+	N10 [label="Course Promotion" color="#FFDA4E" fillcolor="#FFE88D" shape=document style=filled]
+	N11 [label="Career Pathway Mapping" color="#81C784" fillcolor="#F1F8E9" shape=preparation style=filled]
+	N12 [label="Subscription Models" color="#81C784" fillcolor="#F1F8E9" shape=rectangle style=filled]
+	S0 [label="" color="#6EB76D" fillcolor="#E9F7E8" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#81C784" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#81C784" fillcolor="#F1F8E9" 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_Mobile Learning Experience {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mobile Learning Experience"
+		nest0_0 [label="Employer Recognition" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+		nest0_1 [label="Verified Track Management" color="#81C784" fillcolor="#F1F8E9" shape=database style=filled]
+		nest0_2 [label="Learner Support" color="#FFDA4E" fillcolor="#FFE88D" shape=hexagon style=filled]
+	}
+	subgraph cluster_Micro_credential Stacking {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Micro_credential Stacking"
+		nest1_0 [label="Gamification for Engagement" color="#81C784" fillcolor="#F1F8E9" shape=preparation style=filled]
+		nest1_1 [label="Marketing to Global Audience" color="#6EB76D" fillcolor="#E9F7E8" shape=diamond style=filled]
+		nest1_2 [label="Course Pilot Testing" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+		nest1_3 [label="Financial Aid for Learners" color="#FFDA4E" fillcolor="#FFE88D" shape=database 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="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="promotes courses" dir=forward]
+	N4 -> N5 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#81C784" penwidth=1.5 style=dashed label="monetizes offerings" dir=forward]
+	N10 -> N11 [color="#6EB76D" penwidth=1.5 style=dashed label="integrates tools" dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest0_0 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N11 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#6EB76D" penwidth=1.5 style=dashed label="integrates videos" dir=forward]
+	nest1_1 -> nest1_2 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest1_0 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N6 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N8 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N6 -> S1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#6EB76D" penwidth=1.5 style=dashed label="issues statements of accomplishment" dir=forward]
+	S1 -> N8 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	N6 -> S2 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	S2 -> N8 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#81C784" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#81C784" penwidth=1.5 style=solid dir=forward]
+	M1 -> N9 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_320.txt b/test/diagrams/scanned_medium/diagrams_320.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c209a7606db1861ec21723b68fdd3b0545fa98ef
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_320.txt
@@ -0,0 +1,31 @@
+<Career Pathway Mapping, connectedTo, Subscription Models>
+<Certificate of Completion Issuance, promotes courses, Corporate Training Solutions>
+<Content Licensing, connectedTo, Research on MOOC Effectiveness>
+<Continuous Course Improvement, connectedTo, Specialization or Professional Certificate Programs>
+<Continuous Course Improvement, connectedTo, University Partnerships>
+<Corporate Training Solutions, connectedTo, Industry Collaboration for Content>
+<Course Pilot Testing, connectedTo, Financial Aid for Learners>
+<Course Promotion, integrates tools, Career Pathway Mapping>
+<Employer Recognition, connectedTo, Verified Track Management>
+<Financial Aid for Learners, connectedTo, Peer Grading Implementation>
+<Gamification for Engagement, integrates videos, Marketing to Global Audience>
+<Global Accessibility Features, connectedTo, Certificate of Completion Issuance>
+<Global Accessibility Features, connectedTo, University Partnerships>
+<Industry Collaboration for Content, connectedTo, Peer Grading Implementation>
+<Learner Support, connectedTo, Career Pathway Mapping>
+<Marketing to Global Audience, connectedTo, Course Pilot Testing>
+<Peer Grading Implementation, connectedTo, Career Pathway Mapping>
+<Peer Grading Implementation, connectedTo, Content Licensing>
+<Peer Grading Implementation, connectedTo, Course Promotion>
+<Peer Grading Implementation, connectedTo, Research on MOOC Effectiveness>
+<Peer Grading Implementation, connectedTo, University Partnerships>
+<Peer Grading Implementation, issues statements of accomplishment, Course Promotion>
+<Research on MOOC Effectiveness, connectedTo, Employer Recognition>
+<Research on MOOC Effectiveness, connectedTo, Gamification for Engagement>
+<Research on MOOC Effectiveness, connectedTo, University Partnerships>
+<Specialization or Professional Certificate Programs, connectedTo, Content Licensing>
+<Specialization or Professional Certificate Programs, connectedTo, Course Promotion>
+<Specialization or Professional Certificate Programs, connectedTo, Global Accessibility Features>
+<Specialization or Professional Certificate Programs, connectedTo, Research on MOOC Effectiveness>
+<University Partnerships, monetizes offerings, Course Promotion>
+<Verified Track Management, connectedTo, Learner Support>
diff --git a/test/diagrams/scanned_medium/diagrams_321.dot b/test/diagrams/scanned_medium/diagrams_321.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e0520797646d041de404324ece378ee83b2c3743
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_321.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=BT
+	N0 [label="Performance Prediction Models" color="#F06292" fillcolor="#FCE4EC" shape=predefinedprocess style=filled]
+	N1 [label="Science Concept Review" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N2 [label="Study Material Design" color="#9FA9E1" fillcolor="#D6D9F0" shape=diamond style=filled]
+	N3 [label="Flashcard Creation" color="#F06292" fillcolor="#FCE4EC" shape=multipledocuments style=filled]
+	N4 [label="Video Lecture Production" color="#FFF9AE" fillcolor="#FFFCE6" shape=rectangle style=filled]
+	N5 [label="Mock Exam Administration" color="#9FA9E1" fillcolor="#D6D9F0" shape=document style=filled]
+	N6 [label="Stress Management for Exams" color="#FFF9AE" fillcolor="#FFFCE6" shape=rectangle style=filled]
+	N7 [label="Test_Taking Strategies" color="#F06292" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N8 [label="Parent or Guardian Updates" color="#FFF9AE" fillcolor="#FFFCE6" shape=rect style=filled]
+	N9 [label="Adaptive Learning Algorithms" color="#9FA9E1" fillcolor="#D6D9F0" shape=predefinedprocess style=filled]
+	N10 [label="Graduate School Exam Prep" color="#F06292" fillcolor="#FCE4EC" shape=diamond style=filled]
+	N11 [label="Personalized Study Plans" color="#9FA9E1" fillcolor="#D6D9F0" shape=vnode_shape style=filled]
+	N12 [label="College Entrance Exam Prep" color="#9FA9E1" fillcolor="#D6D9F0" shape=database style=filled]
+	N13 [label="Interactive Exercises" color="#FFF9AE" fillcolor="#FFFCE6" shape=rectangle style=filled]
+	N14 [label="Certification Exam Prep" color="#FFF9AE" fillcolor="#FFFCE6" shape=rect style=filled]
+	N15 [label="Professional Licensure Exam Prep" color="#9FA9E1" fillcolor="#D6D9F0" shape=diamond style=filled]
+	N16 [label="Score Analysis" color="#F06292" fillcolor="#FCE4EC" shape=inputoutput style=filled]
+	N17 [label="Diagnostic Assessment" color="#FFF9AE" fillcolor="#FFFCE6" shape=predefinedprocess style=filled]
+	S1 [label="" color="#FFF9AE" fillcolor="#FFFCE6" 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_Writing Skills Improvement {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Writing Skills Improvement"
+		nest0_0 [label="English Proficiency Test Prep" color="#F06292" fillcolor="#FCE4EC" shape=action style=filled]
+		nest0_1 [label="Performance Feedback" color="#FFF9AE" fillcolor="#FFFCE6" shape=rect style=filled]
+		nest0_2 [label="Motivation Coaching" color="#F06292" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+		nest0_3 [label="Critical Thinking Development" color="#F06292" fillcolor="#FCE4EC" shape=document style=filled]
+	}
+	subgraph cluster_Memory Techniques Training {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Memory Techniques Training"
+		nest1_0 [label="Curriculum Development" color="#FFF9AE" fillcolor="#FFFCE6" shape=document style=filled]
+		nest1_1 [label="Reading Comprehension Drills" color="#9FA9E1" fillcolor="#D6D9F0" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#FFF9AE" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
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+	N16 -> N17 [color="#000000" penwidth=1.5 style=solid dir=forward]
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+	nest0_1 -> nest0_2 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#FFF9AE" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
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+	N16 -> nest1_0 [color="#F06292" penwidth=1.5 style=solid dir=forward]
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+	N1 -> M0 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	M0 -> N4 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
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+	N6 -> nest0_2 [color="#9FA9E1" penwidth=1.5 style=solid label="simulates" dir=forward]
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+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_321.txt b/test/diagrams/scanned_medium/diagrams_321.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3151fbc28d0968607a91abda8731439a7d4f0279
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_321.txt
@@ -0,0 +1,34 @@
+<Adaptive Learning Algorithms, connectedTo, Graduate School Exam Prep>
+<Certification Exam Prep, connectedTo, Professional Licensure Exam Prep>
+<College Entrance Exam Prep, connectedTo, English Proficiency Test Prep>
+<College Entrance Exam Prep, connectedTo, Interactive Exercises>
+<Critical Thinking Development, connectedTo, College Entrance Exam Prep>
+<Curriculum Development, connectedTo, Reading Comprehension Drills>
+<Curriculum Development, connectedTo, Stress Management for Exams>
+<English Proficiency Test Prep, connectedTo, Performance Feedback>
+<Flashcard Creation, connectedTo, Video Lecture Production>
+<Graduate School Exam Prep, connectedTo, Personalized Study Plans>
+<Interactive Exercises, connectedTo, Certification Exam Prep>
+<Mock Exam Administration, connectedTo, Stress Management for Exams>
+<Motivation Coaching, connectedTo, Critical Thinking Development>
+<Parent or Guardian Updates, connectedTo, Adaptive Learning Algorithms>
+<Parent or Guardian Updates, connectedTo, Certification Exam Prep>
+<Performance Feedback, connectedTo, Motivation Coaching>
+<Performance Feedback, connectedTo, Science Concept Review>
+<Performance Prediction Models, connectedTo, Science Concept Review>
+<Performance Prediction Models, connectedTo, Video Lecture Production>
+<Personalized Study Plans, connectedTo, College Entrance Exam Prep>
+<Professional Licensure Exam Prep, connectedTo, Score Analysis>
+<Reading Comprehension Drills, connectedTo, Score Analysis>
+<Science Concept Review, connectedTo, Study Material Design>
+<Science Concept Review, connectedTo, Video Lecture Production>
+<Score Analysis, connectedTo, Curriculum Development>
+<Score Analysis, connectedTo, Diagnostic Assessment>
+<Stress Management for Exams, connectedTo, Test_Taking Strategies>
+<Stress Management for Exams, simulates, Motivation Coaching>
+<Study Material Design, connectedTo, Flashcard Creation>
+<Study Material Design, connectedTo, Video Lecture Production>
+<Test_Taking Strategies, connectedTo, Diagnostic Assessment>
+<Test_Taking Strategies, connectedTo, Parent or Guardian Updates>
+<Test_Taking Strategies, connectedTo, Professional Licensure Exam Prep>
+<Video Lecture Production, connectedTo, Mock Exam Administration>
diff --git a/test/diagrams/scanned_medium/diagrams_322.dot b/test/diagrams/scanned_medium/diagrams_322.dot
new file mode 100644
index 0000000000000000000000000000000000000000..21247b1165e0a72032ffa79dded2fdd60c89b3d4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_322.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=RL
+	N0 [label="Virtual Reality Language Environments" color="#4FC3F7" fillcolor="#E1F5FE" shape=ellipse style=filled]
+	N1 [label="Grammar Practice" color="#4FC3F7" fillcolor="#E1F5FE" shape=box style=filled]
+	N2 [label="Error Correction Feedback" color="#FFF8A6" fillcolor="#FFFDE0" shape=vnode_shape style=filled]
+	N3 [label="Business Language Training" color="#9FA9E1" fillcolor="#D6D9F0" shape=predefinedprocess style=filled]
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+	N7 [label="Reading Comprehension" color="#4FC3F7" fillcolor="#E1F5FE" shape=document style=filled]
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+		color=gray50
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+	}
+	subgraph cluster_Memory Retention Techniques {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Memory Retention Techniques"
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+		nest1_1 [label="Vocabulary Acquisition" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
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+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_322.txt b/test/diagrams/scanned_medium/diagrams_322.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ae924d11d5e551852b35c06bdc99f691371a1b27
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_322.txt
@@ -0,0 +1,27 @@
+<Adult Language Learning, connectedTo, Instructor_Led Classes>
+<Business Language Training, connectedTo, Listening Comprehension>
+<Business Language Training, connectedTo, Travel Language Essentials>
+<Children's Language Learning, connectedTo, Interactive Dialogues>
+<Error Correction Feedback, connectedTo, Adult Language Learning>
+<Error Correction Feedback, connectedTo, Business Language Training>
+<Error Correction Feedback, connectedTo, Reading Comprehension>
+<Grammar Practice, connectedTo, Error Correction Feedback>
+<Grammar Practice, connectedTo, Writing Exercises>
+<Instructor_Led Classes, connectedTo, Children's Language Learning>
+<Interactive Dialogues, connectedTo, AI_Powered Language Tutors>
+<Language Assessment Tests, connectedTo, Slang and Idioms Learning>
+<Language for Specific Purposes, connectedTo, Reading Comprehension>
+<Listening Comprehension, connectedTo, Reading Comprehension>
+<Listening Comprehension, connectedTo, Slang and Idioms Learning>
+<Listening Comprehension, connectedTo, Travel Language Essentials>
+<Reading Comprehension, connectedTo, Language Assessment Tests>
+<Slang and Idioms Learning, connectedTo, AI_Powered Language Tutors>
+<Translation Exercises, connectedTo, Error Correction Feedback>
+<Travel Language Essentials, connectedTo, Language Assessment Tests>
+<Travel Language Essentials, connectedTo, Reading Comprehension>
+<Travel Language Essentials, pronounces, Slang and Idioms Learning>
+<Travel Language Essentials, simulates, Language for Specific Purposes>
+<Virtual Reality Language Environments, connectedTo, Grammar Practice>
+<Virtual Reality Language Environments, connectedTo, Travel Language Essentials>
+<Vocabulary Acquisition, connectedTo, Translation Exercises>
+<Writing Exercises, connectedTo, Vocabulary Acquisition>
diff --git a/test/diagrams/scanned_medium/diagrams_323.dot b/test/diagrams/scanned_medium/diagrams_323.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d9fea396d960e7e4b079feca04ae43eb0c4e41a7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_323.dot
@@ -0,0 +1,73 @@
+digraph {
+	rankdir=BT
+	N0 [label="Relapse Prevention" color="#6EB76D" fillcolor="#E9F7E8" shape=rectangle style=filled]
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+	M1 [label="" color="#CB9BE1" fillcolor="#F2E6F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Grief Counseling {
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+		color=gray50
+		label="Grief Counseling"
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+		nest0_2 [label="Family Therapy" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+	}
+	subgraph cluster_Post_Traumatic Stress Disorder Support {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Post_Traumatic Stress Disorder Support"
+		nest1_0 [label="Mindfulness Practice" color="#6EB76D" fillcolor="#E9F7E8" shape=multipledocuments style=filled]
+		nest1_1 [label="Child & Adolescent Therapy" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+		nest1_2 [label="Art Therapy" color="#CB9BE1" fillcolor="#F2E6F5" shape=database style=filled]
+	}
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\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_323.txt b/test/diagrams/scanned_medium/diagrams_323.txt
new file mode 100644
index 0000000000000000000000000000000000000000..84094da5957a02862c3b55d787d6eebea7978f2f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_323.txt
@@ -0,0 +1,31 @@
+<Advocacy for Mental Health, connectedTo, Trauma Therapy>
+<Art Therapy, connectedTo, Digital Mental Health Tools>
+<Bipolar Disorder Management, connectedTo, Crisis Intervention>
+<Bipolar Disorder Management, connectedTo, Workplace Mental Health Programs>
+<Child & Adolescent Therapy, connectedTo, Art Therapy>
+<Crisis Intervention, connectedTo, Dialectical Behavior Therapy>
+<Depression Treatment, connectedTo, Diagnosis and Assessment>
+<Diagnosis and Assessment, connectedTo, Bipolar Disorder Management>
+<Digital Mental Health Tools, connectedTo, Bipolar Disorder Management>
+<Digital Mental Health Tools, connectedTo, Depression Treatment>
+<Digital Mental Health Tools, protects, Dialectical Behavior Therapy>
+<Family Therapy, connectedTo, Crisis Intervention>
+<Mindfulness Practice, connectedTo, Child & Adolescent Therapy>
+<Music Therapy, connectedTo, Family Therapy>
+<Outpatient Program Management, connectedTo, Peer Support Programs>
+<Outpatient Program Management, refers, Bipolar Disorder Management>
+<Peer Support Programs, connectedTo, Bipolar Disorder Management>
+<Peer Support Programs, connectedTo, Mindfulness Practice>
+<Peer Support Programs, connectedTo, Therapy Session>
+<Psychiatric Evaluation, connectedTo, Treatment Plan Development>
+<Relapse Prevention, connectedTo, Outpatient Program Management>
+<Substance Abuse Counseling, improves, Advocacy for Mental Health>
+<Therapy Session, connectedTo, Psychiatric Evaluation>
+<Therapy Session, connectedTo, Trauma Therapy>
+<Trauma Therapy, connectedTo, Bipolar Disorder Management>
+<Trauma Therapy, connectedTo, Digital Mental Health Tools>
+<Treatment Plan Development, connectedTo, Advocacy for Mental Health>
+<Treatment Plan Development, connectedTo, Bipolar Disorder Management>
+<Treatment Plan Development, connectedTo, Substance Abuse Counseling>
+<Treatment Plan Development, connectedTo, Trauma Therapy>
+<Workplace Mental Health Programs, connectedTo, Music Therapy>
diff --git a/test/diagrams/scanned_medium/diagrams_324.dot b/test/diagrams/scanned_medium/diagrams_324.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d899a8455af52546b0dee06137e0d01acafec53b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_324.dot
@@ -0,0 +1,86 @@
+digraph {
+	rankdir=BT
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+	nest0_3 -> N11 [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="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest1_0 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N11 -> S0 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N10 -> S1 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#FFCC80" penwidth=1.5 style=solid dir=forward]
+	N1 -> S2 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N5 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N10 -> M0 [color="#FFCC80" penwidth=1.5 style=dashed label="researches" dir=forward]
+	N4 -> M0 [color="#FF8A65" penwidth=1.5 style=dashed label="certifies" dir=forward]
+	M0 -> N13 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N9 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_324.txt b/test/diagrams/scanned_medium/diagrams_324.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cd9d54e4ddd69fa04efa44aef6f0678dc39a9548
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_324.txt
@@ -0,0 +1,38 @@
+<Agricultural Nutrition Impact, connectedTo, Recipe Adaptation>
+<Body Composition Analysis, connectedTo, Dietary Supplement Review>
+<Detoxification Programs, identifies, Food Fortification Strategies>
+<Dietary Software Usage, connectedTo, Nutritional Biomarker Analysis>
+<Dietary Supplement Review, supports, Hydration Planning>
+<Eating Habit Modification, connectedTo, Detoxification Programs>
+<Elderly Nutrition, connectedTo, Supplement Recommendation>
+<Food Allergy Management, connectedTo, Food Preparation Guidance>
+<Food Fortification Strategies, motivates, Restaurant Menu Analysis>
+<Food Preparation Guidance, connectedTo, Detoxification Programs>
+<Food Preparation Guidance, connectedTo, Food Fortification Strategies>
+<Food Preparation Guidance, connectedTo, Restaurant Menu Analysis>
+<Food Preparation Guidance, connectedTo, Sports Nutrition>
+<Food Waste Reduction, connectedTo, Dietary Software Usage>
+<Grocery Shopping Guidance, certifies, Elderly Nutrition>
+<Grocery Shopping Guidance, connectedTo, Detoxification Programs>
+<Grocery Shopping Guidance, connectedTo, Food Fortification Strategies>
+<Grocery Shopping Guidance, connectedTo, Recipe Adaptation>
+<Hydration Planning, connectedTo, Micronutrient Analysis>
+<Inflammation and Diet, connectedTo, Elderly Nutrition>
+<Inflammation and Diet, connectedTo, Food Waste Reduction>
+<Micronutrient Analysis, connectedTo, Nutritional Counseling>
+<Nutritional Biomarker Analysis, connectedTo, Eating Habit Modification>
+<Nutritional Counseling, connectedTo, Elderly Nutrition>
+<Nutritional Counseling, connectedTo, Inflammation and Diet>
+<Nutritional Counseling, connectedTo, Supplement Recommendation>
+<Public Health Nutrition Programs, connectedTo, Food Fortification Strategies>
+<Public Health Nutrition Programs, connectedTo, Grocery Shopping Guidance>
+<Public Health Nutrition Programs, connectedTo, Recipe Adaptation>
+<Recipe Adaptation, balances, Body Composition Analysis>
+<Recipe Adaptation, processes, Weight Management>
+<Restaurant Menu Analysis, connectedTo, Agricultural Nutrition Impact>
+<Sports Nutrition, connectedTo, Public Health Nutrition Programs>
+<Weight Management, connectedTo, Elderly Nutrition>
+<Weight Management, connectedTo, Inflammation and Diet>
+<Weight Management, connectedTo, Nutritional Counseling>
+<Weight Management, connectedTo, Supplement Recommendation>
+<Weight Management, researches, Elderly Nutrition>
diff --git a/test/diagrams/scanned_medium/diagrams_325.dot b/test/diagrams/scanned_medium/diagrams_325.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8678b412a99053edb2703f17ed1fba8fe3510fa1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_325.dot
@@ -0,0 +1,67 @@
+digraph {
+	rankdir=BT
+	N0 [label="Corporate Wellness Programs" color="#61CAC3" fillcolor="#C2E8E6" shape=inputoutput style=filled]
+	N1 [label="Fitness Equipment Maintenance" color="#795548" fillcolor="#D7CCC8" shape=diamond style=filled]
+	N2 [label="Workout Tracking Apps" color="#795548" fillcolor="#D7CCC8" shape=document style=filled]
+	N3 [label="Wearable Fitness Devices" color="#E91E63" fillcolor="#F8BBD0" shape=predefinedprocess style=filled]
+	N4 [label="Endurance Training" color="#E91E63" fillcolor="#F8BBD0" shape=hexagon style=filled]
+	N5 [label="Outdoor Fitness Activities" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	N6 [label="Strength Training" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N7 [label="Pilates Instruction" color="#61CAC3" fillcolor="#C2E8E6" shape=action style=filled]
+	N8 [label="Nutrition for Fitness" color="#61CAC3" fillcolor="#C2E8E6" shape=box style=filled]
+	N9 [label="Cardiovascular Training" color="#795548" fillcolor="#D7CCC8" shape=rect style=filled]
+	N10 [label="Mind_Body Connection" color="#795548" fillcolor="#D7CCC8" shape=rect style=filled]
+	N11 [label="Virtual Fitness Classes" color="#61CAC3" fillcolor="#C2E8E6" shape=diamond style=filled]
+	N12 [label="Functional Fitness Training" color="#795548" fillcolor="#D7CCC8" shape=preparation style=filled]
+	S0 [label="" color="#795548" fillcolor="#D7CCC8" 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="#E91E63" fillcolor="#F8BBD0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Flexibility Training {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Flexibility Training"
+		nest0_0 [label="Group Fitness Classes" color="#61CAC3" fillcolor="#C2E8E6" shape=rectangle style=filled]
+		nest0_1 [label="Yoga Instruction" color="#E91E63" fillcolor="#F8BBD0" shape=multipledocuments style=filled]
+	}
+	subgraph cluster_Workout Planning {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Workout Planning"
+		nest1_0 [label="Balance and Coordination" color="#795548" fillcolor="#D7CCC8" shape=preparation style=filled]
+		nest1_1 [label="HIIT Workouts" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+	}
+	N0 -> N1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#795548" 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="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N8 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest1_0 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N6 [color="#E91E63" penwidth=1.5 style=solid label="distributes" dir=forward]
+	N8 -> S0 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M0 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N12 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#61CAC3" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	M1 -> N8 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#E91E63" penwidth=1.5 style=solid label="communicates" dir=forward]
+	N1 -> M2 [color="#61CAC3" penwidth=1.5 style=solid label="develops" 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_medium/diagrams_325.txt b/test/diagrams/scanned_medium/diagrams_325.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ba290df29421e27db9a6685189ae467ff3feeed8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_325.txt
@@ -0,0 +1,28 @@
+<Balance and Coordination, connectedTo, HIIT Workouts>
+<Cardiovascular Training, connectedTo, Mind_Body Connection>
+<Corporate Wellness Programs, connectedTo, Fitness Equipment Maintenance>
+<Endurance Training, communicates, Pilates Instruction>
+<Endurance Training, connectedTo, Outdoor Fitness Activities>
+<Fitness Equipment Maintenance, connectedTo, Workout Tracking Apps>
+<Fitness Equipment Maintenance, develops, Pilates Instruction>
+<Group Fitness Classes, connectedTo, Yoga Instruction>
+<HIIT Workouts, distributes, Strength Training>
+<Mind_Body Connection, connectedTo, Virtual Fitness Classes>
+<Nutrition for Fitness, connectedTo, Balance and Coordination>
+<Nutrition for Fitness, connectedTo, Cardiovascular Training>
+<Nutrition for Fitness, connectedTo, Functional Fitness Training>
+<Nutrition for Fitness, connectedTo, Mind_Body Connection>
+<Nutrition for Fitness, connectedTo, Virtual Fitness Classes>
+<Outdoor Fitness Activities, connectedTo, Nutrition for Fitness>
+<Outdoor Fitness Activities, connectedTo, Strength Training>
+<Pilates Instruction, connectedTo, Functional Fitness Training>
+<Pilates Instruction, connectedTo, Nutrition for Fitness>
+<Strength Training, connectedTo, Functional Fitness Training>
+<Strength Training, connectedTo, Pilates Instruction>
+<Virtual Fitness Classes, connectedTo, Functional Fitness Training>
+<Wearable Fitness Devices, connectedTo, Endurance Training>
+<Wearable Fitness Devices, connectedTo, Nutrition for Fitness>
+<Workout Tracking Apps, connectedTo, Group Fitness Classes>
+<Workout Tracking Apps, connectedTo, Pilates Instruction>
+<Workout Tracking Apps, connectedTo, Wearable Fitness Devices>
+<Yoga Instruction, connectedTo, Nutrition for Fitness>
diff --git a/test/diagrams/scanned_medium/diagrams_326.dot b/test/diagrams/scanned_medium/diagrams_326.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4b4726be4fe863968f894fc3ca3b711fc1ba07e8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_326.dot
@@ -0,0 +1,86 @@
+digraph {
+	rankdir=LR
+	N0 [label="Environmental Wellness" color="#E0E0E0" fillcolor="#EBEBEB" shape=multipledocuments style=filled]
+	N1 [label="Meditation Coaching" color="#388E3C" fillcolor="#F1F8E9" shape=ellipse style=filled]
+	N2 [label="Immune System Support" color="#388E3C" fillcolor="#F1F8E9" shape=preparation style=filled]
+	N3 [label="Alternative Therapies" color="#4DB6AC" fillcolor="#E0F2F1" shape=preparation style=filled]
+	N4 [label="Behavior Change Support" color="#4DB6AC" fillcolor="#E0F2F1" shape=rect style=filled]
+	N5 [label="Detox Programs" color="#388E3C" fillcolor="#F1F8E9" shape=hexagon style=filled]
+	N6 [label="Personal Growth Planning" color="#E0E0E0" fillcolor="#EBEBEB" shape=preparation style=filled]
+	N7 [label="Gratitude Practice" color="#4DB6AC" fillcolor="#E0F2F1" shape=document style=filled]
+	N8 [label="Journaling for Wellness" color="#4DB6AC" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N9 [label="Gut Health for Wellness" color="#E0E0E0" fillcolor="#EBEBEB" shape=database style=filled]
+	N10 [label="Chiropractic Care" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+	N11 [label="Hydrotherapy" color="#4DB6AC" fillcolor="#E0F2F1" shape=multipledocuments style=filled]
+	N12 [label="Breathwork Exercises" color="#E0E0E0" fillcolor="#EBEBEB" shape=ellipse style=filled]
+	N13 [label="Social Connection Enhancement" color="#4DB6AC" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N14 [label="Wellness Retreat Planning" color="#E0E0E0" fillcolor="#EBEBEB" 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="#E0E0E0" fillcolor="#EBEBEB" 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="#388E3C" fillcolor="#F1F8E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#E0E0E0" fillcolor="#EBEBEB" 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_Spiritual Exploration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Spiritual Exploration"
+		nest0_0 [label="Biofeedback Training" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+		nest0_1 [label="Burnout Prevention" color="#4DB6AC" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+		nest0_2 [label="Mindfulness Practice" color="#E0E0E0" fillcolor="#EBEBEB" shape=preparation style=filled]
+		nest0_3 [label="Nature Connection" color="#4DB6AC" fillcolor="#E0F2F1" shape=document style=filled]
+	}
+	subgraph cluster_Massage Therapy {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Massage Therapy"
+		nest1_0 [label="Digital Detox" color="#388E3C" fillcolor="#F1F8E9" shape=hexagon style=filled]
+		nest1_1 [label="Aromatherapy Usage" color="#E0E0E0" fillcolor="#EBEBEB" shape=action style=filled]
+		nest1_2 [label="Physical Activity Planning" color="#388E3C" fillcolor="#F1F8E9" shape=database style=filled]
+		nest1_3 [label="Positive Psychology Application" color="#E0E0E0" fillcolor="#EBEBEB" shape=parallelogram 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="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#4DB6AC" penwidth=1.5 style=dashed label="promotes" dir=forward]
+	N13 -> N14 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest0_0 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N5 [color="#4DB6AC" 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="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> nest1_0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N12 [color="#000000" penwidth=1.5 style=dashed label="guides" dir=forward]
+	N9 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N2 -> S1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S2 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S2 -> N10 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	M0 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N4 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_326.txt b/test/diagrams/scanned_medium/diagrams_326.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a841d6db55d6bade94ff9bbc446d0ad23309ed87
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_326.txt
@@ -0,0 +1,37 @@
+<Alternative Therapies, connectedTo, Behavior Change Support>
+<Alternative Therapies, connectedTo, Hydrotherapy>
+<Aromatherapy Usage, connectedTo, Physical Activity Planning>
+<Behavior Change Support, connectedTo, Detox Programs>
+<Biofeedback Training, connectedTo, Burnout Prevention>
+<Breathwork Exercises, connectedTo, Biofeedback Training>
+<Breathwork Exercises, promotes, Social Connection Enhancement>
+<Burnout Prevention, connectedTo, Mindfulness Practice>
+<Chiropractic Care, connectedTo, Hydrotherapy>
+<Detox Programs, connectedTo, Personal Growth Planning>
+<Digital Detox, connectedTo, Aromatherapy Usage>
+<Environmental Wellness, connectedTo, Behavior Change Support>
+<Environmental Wellness, connectedTo, Chiropractic Care>
+<Environmental Wellness, connectedTo, Gut Health for Wellness>
+<Environmental Wellness, connectedTo, Meditation Coaching>
+<Gratitude Practice, connectedTo, Journaling for Wellness>
+<Gut Health for Wellness, connectedTo, Chiropractic Care>
+<Gut Health for Wellness, connectedTo, Hydrotherapy>
+<Gut Health for Wellness, connectedTo, Social Connection Enhancement>
+<Gut Health for Wellness, connectedTo, Wellness Retreat Planning>
+<Hydrotherapy, connectedTo, Breathwork Exercises>
+<Hydrotherapy, connectedTo, Digital Detox>
+<Immune System Support, connectedTo, Alternative Therapies>
+<Immune System Support, connectedTo, Behavior Change Support>
+<Immune System Support, connectedTo, Breathwork Exercises>
+<Immune System Support, connectedTo, Chiropractic Care>
+<Immune System Support, connectedTo, Hydrotherapy>
+<Immune System Support, connectedTo, Personal Growth Planning>
+<Journaling for Wellness, connectedTo, Gut Health for Wellness>
+<Meditation Coaching, connectedTo, Behavior Change Support>
+<Meditation Coaching, connectedTo, Immune System Support>
+<Mindfulness Practice, connectedTo, Nature Connection>
+<Nature Connection, connectedTo, Detox Programs>
+<Personal Growth Planning, connectedTo, Gratitude Practice>
+<Physical Activity Planning, connectedTo, Positive Psychology Application>
+<Positive Psychology Application, guides, Breathwork Exercises>
+<Social Connection Enhancement, connectedTo, Wellness Retreat Planning>
diff --git a/test/diagrams/scanned_medium/diagrams_327.dot b/test/diagrams/scanned_medium/diagrams_327.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2dce29c75d9b9b5b8c040f58a17a1110e2905c6a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_327.dot
@@ -0,0 +1,84 @@
+digraph {
+	rankdir=BT
+	N0 [label="Construction Documentation" color="#673AB7" fillcolor="#D1C4E9" shape=diamond style=filled]
+	N1 [label="Project Management" color="#673AB7" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N2 [label="Post_Occupancy Evaluation" color="#EAEFA5" fillcolor="#FDFCEB" shape=predefinedprocess style=filled]
+	N3 [label="Living Room Design" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N4 [label="Ergonomics Integration" color="#EAEFA5" fillcolor="#FDFCEB" shape=predefinedprocess style=filled]
+	N5 [label="Sustainable Design Practices" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+	N6 [label="Acoustic Treatment" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+	N7 [label="Bathroom Design" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	N8 [label="Contractor Coordination" color="#EAEFA5" fillcolor="#FDFCEB" shape=rect style=filled]
+	N9 [label="Installation Supervision" color="#673AB7" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N10 [label="Ventilation Planning" color="#CD8FF2" fillcolor="#ECCFF5" shape=diamond style=filled]
+	N11 [label="Custom Furniture Design" color="#673AB7" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N12 [label="Bedroom Design" color="#CD8FF2" fillcolor="#ECCFF5" shape=vnode_shape style=filled]
+	N13 [label="Color Scheme Selection" color="#CD8FF2" fillcolor="#ECCFF5" shape=action style=filled]
+	N14 [label="Building Code Compliance" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	N15 [label="Space Planning" color="#673AB7" fillcolor="#D1C4E9" shape=database style=filled]
+	N16 [label="CAD Drafting" color="#EAEFA5" fillcolor="#FDFCEB" shape=document style=filled]
+	N17 [label="3D Rendering" color="#EAEFA5" fillcolor="#FDFCEB" shape=preparation style=filled]
+	N18 [label="Universal Design Principles" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	S0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" 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]
+	M0 [label="" color="#673AB7" fillcolor="#D1C4E9" 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_Office Space Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Office Space Design"
+		nest0_0 [label="Retail Interior Design" color="#673AB7" fillcolor="#D1C4E9" shape=rect style=filled]
+		nest0_1 [label="Feng Shui Consultation" color="#CD8FF2" fillcolor="#ECCFF5" shape=database style=filled]
+		nest0_2 [label="Flooring Specification" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	}
+	subgraph cluster_Lighting Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Lighting Design"
+		nest1_0 [label="Material and Finish Specification" color="#673AB7" fillcolor="#D1C4E9" shape=preparation style=filled]
+		nest1_1 [label="Kitchen Design" color="#EAEFA5" fillcolor="#FDFCEB" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#673AB7" 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=solid dir=forward]
+	N8 -> N9 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed label="markets" dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid label="photographs" dir=forward]
+	N12 -> N13 [color="#CD8FF2" penwidth=1.5 style=solid label="colors" dir=forward]
+	N13 -> N14 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#CD8FF2" penwidth=1.5 style=dashed label="customizes" dir=forward]
+	N17 -> N18 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest0_0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N3 [color="#673AB7" penwidth=1.5 style=solid label="materials" dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N15 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N6 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N10 -> S0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N2 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#000000" penwidth=1.5 style=dashed label="presents" dir=forward]
+	S1 -> N18 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> S2 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N15 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	S2 -> N16 [color="#000000" penwidth=1.5 style=dashed label="supervises" dir=forward]
+	S2 -> N18 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#673AB7" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#673AB7" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N18 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#EAEFA5" penwidth=1.5 style=solid label="showcases" dir=forward]
+	M1 -> N4 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_327.txt b/test/diagrams/scanned_medium/diagrams_327.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a693ed226c1384afb51d4fa21440829c876060d3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_327.txt
@@ -0,0 +1,37 @@
+<3D Rendering, connectedTo, Universal Design Principles>
+<Acoustic Treatment, connectedTo, Bathroom Design>
+<Bathroom Design, connectedTo, Contractor Coordination>
+<Bedroom Design, colors, Color Scheme Selection>
+<Bedroom Design, connectedTo, Retail Interior Design>
+<Building Code Compliance, connectedTo, Space Planning>
+<CAD Drafting, customizes, 3D Rendering>
+<Color Scheme Selection, connectedTo, Building Code Compliance>
+<Color Scheme Selection, connectedTo, Space Planning>
+<Color Scheme Selection, connectedTo, Universal Design Principles>
+<Color Scheme Selection, supervises, CAD Drafting>
+<Construction Documentation, connectedTo, Project Management>
+<Construction Documentation, connectedTo, Universal Design Principles>
+<Contractor Coordination, connectedTo, Installation Supervision>
+<Custom Furniture Design, photographs, Bedroom Design>
+<Ergonomics Integration, connectedTo, Sustainable Design Practices>
+<Feng Shui Consultation, connectedTo, Flooring Specification>
+<Flooring Specification, materials, Living Room Design>
+<Installation Supervision, connectedTo, Ventilation Planning>
+<Kitchen Design, connectedTo, Acoustic Treatment>
+<Living Room Design, connectedTo, Ergonomics Integration>
+<Material and Finish Specification, connectedTo, Kitchen Design>
+<Post_Occupancy Evaluation, connectedTo, Living Room Design>
+<Post_Occupancy Evaluation, connectedTo, Universal Design Principles>
+<Post_Occupancy Evaluation, presents, Acoustic Treatment>
+<Post_Occupancy Evaluation, showcases, Ergonomics Integration>
+<Project Management, connectedTo, Ergonomics Integration>
+<Project Management, connectedTo, Post_Occupancy Evaluation>
+<Retail Interior Design, connectedTo, Feng Shui Consultation>
+<Space Planning, connectedTo, CAD Drafting>
+<Space Planning, connectedTo, Material and Finish Specification>
+<Sustainable Design Practices, connectedTo, Acoustic Treatment>
+<Sustainable Design Practices, connectedTo, Universal Design Principles>
+<Ventilation Planning, connectedTo, Bedroom Design>
+<Ventilation Planning, connectedTo, Color Scheme Selection>
+<Ventilation Planning, connectedTo, Space Planning>
+<Ventilation Planning, markets, Custom Furniture Design>
diff --git a/test/diagrams/scanned_medium/diagrams_328.dot b/test/diagrams/scanned_medium/diagrams_328.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4edfd9590890415242d28ec7e4ae645f315acac0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_328.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=TB
+	N0 [label="Wearable Translation Devices" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	N1 [label="Consecutive Interpretation" color="#FFDA4E" fillcolor="#FFE88D" shape=document style=filled]
+	N2 [label="Real_Time Captioning" color="#90A4AE" fillcolor="#ECEFF1" shape=rect style=filled]
+	N3 [label="Glossary Management" color="#FFDA4E" fillcolor="#FFE88D" shape=document style=filled]
+	N4 [label="Speaker Diarization" color="#FFDA4E" fillcolor="#FFE88D" shape=multipledocuments style=filled]
+	N5 [label="Speech Recognition" color="#D3EB9F" fillcolor="#F8FDD3" shape=predefinedprocess style=filled]
+	N6 [label="Custom Vocabulary Integration" color="#90A4AE" fillcolor="#ECEFF1" shape=box style=filled]
+	N7 [label="Medical Translation" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	N8 [label="Customer Support Translation" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	N9 [label="Social Media Translation" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+	S0 [label="" color="#D3EB9F" fillcolor="#F8FDD3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#D3EB9F" fillcolor="#F8FDD3" 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]
+	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]
+	M2 [label="" color="#90A4AE" fillcolor="#ECEFF1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Subtitling Generation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Subtitling Generation"
+		nest0_0 [label="Cross_Lingual Communication" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+		nest0_1 [label="Real_Time Document Translation" color="#90A4AE" fillcolor="#ECEFF1" shape=multipledocuments style=filled]
+		nest0_2 [label="Language Detection" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Simultaneous Interpretation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Simultaneous Interpretation"
+		nest1_0 [label="Noise Reduction for Speech Input" color="#FFDA4E" fillcolor="#FFE88D" shape=predefinedprocess style=filled]
+		nest1_1 [label="API Integration for Translation Services" color="#D3EB9F" fillcolor="#F8FDD3" shape=ellipse style=filled]
+		nest1_2 [label="Rule_Based Machine Translation" color="#90A4AE" fillcolor="#ECEFF1" shape=vnode_shape style=filled]
+		nest1_3 [label="Tone Recognition" color="#FFDA4E" fillcolor="#FFE88D" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid 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 label="protects" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFDA4E" 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="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest0_0 [color="#D3EB9F" penwidth=1.5 style=dashed label="customizes" dir=forward]
+	nest0_2 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed label="generates" dir=forward]
+	nest1_3 -> N4 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N1 -> S0 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N2 -> S1 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S1 -> N4 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S2 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#FFDA4E" penwidth=1.5 style=dashed label="outputs" dir=forward]
+	M0 -> N3 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#000000" penwidth=1.5 style=dashed label="automates" dir=forward]
+	N4 -> M2 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	M2 -> N6 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_328.txt b/test/diagrams/scanned_medium/diagrams_328.txt
new file mode 100644
index 0000000000000000000000000000000000000000..840984634040da9e5a47163fa2e29e772057bc45
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_328.txt
@@ -0,0 +1,31 @@
+<API Integration for Translation Services, connectedTo, Rule_Based Machine Translation>
+<Consecutive Interpretation, connectedTo, Custom Vocabulary Integration>
+<Consecutive Interpretation, connectedTo, Glossary Management>
+<Consecutive Interpretation, connectedTo, Real_Time Captioning>
+<Consecutive Interpretation, connectedTo, Speech Recognition>
+<Cross_Lingual Communication, connectedTo, Real_Time Document Translation>
+<Custom Vocabulary Integration, connectedTo, Medical Translation>
+<Customer Support Translation, connectedTo, Social Media Translation>
+<Customer Support Translation, customizes, Cross_Lingual Communication>
+<Glossary Management, connectedTo, Custom Vocabulary Integration>
+<Glossary Management, protects, Speaker Diarization>
+<Language Detection, connectedTo, Real_Time Captioning>
+<Medical Translation, connectedTo, Customer Support Translation>
+<Medical Translation, generates, Noise Reduction for Speech Input>
+<Noise Reduction for Speech Input, connectedTo, API Integration for Translation Services>
+<Real_Time Captioning, connectedTo, Custom Vocabulary Integration>
+<Real_Time Captioning, connectedTo, Customer Support Translation>
+<Real_Time Captioning, connectedTo, Glossary Management>
+<Real_Time Captioning, connectedTo, Speaker Diarization>
+<Real_Time Document Translation, connectedTo, Language Detection>
+<Rule_Based Machine Translation, connectedTo, Tone Recognition>
+<Speaker Diarization, connectedTo, Custom Vocabulary Integration>
+<Speaker Diarization, connectedTo, Speech Recognition>
+<Speech Recognition, connectedTo, Custom Vocabulary Integration>
+<Speech Recognition, connectedTo, Customer Support Translation>
+<Speech Recognition, connectedTo, Medical Translation>
+<Speech Recognition, connectedTo, Social Media Translation>
+<Tone Recognition, connectedTo, Speaker Diarization>
+<Wearable Translation Devices, automates, Custom Vocabulary Integration>
+<Wearable Translation Devices, connectedTo, Consecutive Interpretation>
+<Wearable Translation Devices, outputs, Glossary Management>
diff --git a/test/diagrams/scanned_medium/diagrams_329.dot b/test/diagrams/scanned_medium/diagrams_329.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ed159d2956bb77f716833defa1c519ba2e32b6b4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_329.dot
@@ -0,0 +1,65 @@
+digraph {
+	rankdir=BT
+	N0 [label="3D Modeling from Drone Data" color="#E57373" fillcolor="#FFEBEE" shape=hexagon style=filled]
+	N1 [label="Payload Customization" color="#A2D0FF" fillcolor="#E8F0FF" shape=document style=filled]
+	N2 [label="Precision Agriculture" color="#3F51B5" fillcolor="#C5CAE9" shape=document style=filled]
+	N3 [label="Thermal Imaging with Drones" color="#3F51B5" fillcolor="#C5CAE9" shape=parallelogram style=filled]
+	N4 [label="Ground Control Station Development" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+	N5 [label="Environmental Monitoring" color="#3F51B5" fillcolor="#C5CAE9" shape=action style=filled]
+	N6 [label="Search and Rescue Operations" color="#E57373" fillcolor="#FFEBEE" shape=diamond style=filled]
+	N7 [label="Autonomous Flight" color="#3F51B5" fillcolor="#C5CAE9" shape=preparation style=filled]
+	N8 [label="Battery Management System" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	N9 [label="Swarm Robotics for Drones" color="#E57373" fillcolor="#FFEBEE" shape=rect style=filled]
+	N10 [label="Airspace Management for Drones" color="#A2D0FF" fillcolor="#E8F0FF" shape=preparation style=filled]
+	N11 [label="Sensor Integration" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	S0 [label="" color="#E57373" fillcolor="#FFEBEE" 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="#A2D0FF" fillcolor="#E8F0FF" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Payload Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Payload Integration"
+		nest0_0 [label="AI for Drone Autonomy" color="#3F51B5" fillcolor="#C5CAE9" shape=document style=filled]
+		nest0_1 [label="Endurance Optimization" color="#E57373" fillcolor="#FFEBEE" shape=rect style=filled]
+		nest0_2 [label="Drone Regulations Compliance" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+	}
+	subgraph cluster_Drone Delivery Logistics {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Drone Delivery Logistics"
+		nest1_0 [label="Flight Planning Software" color="#A2D0FF" fillcolor="#E8F0FF" shape=inputoutput style=filled]
+		nest1_1 [label="Drone Design" color="#A2D0FF" fillcolor="#E8F0FF" shape=database style=filled]
+	}
+	N0 -> N1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#A2D0FF" 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 dir=forward]
+	N4 -> N5 [color="#E57373" penwidth=1.5 style=dashed label="builds" dir=forward]
+	N5 -> N6 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N5 -> nest0_0 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N3 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#A2D0FF" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N10 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#3F51B5" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M0 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#3F51B5" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_329.txt b/test/diagrams/scanned_medium/diagrams_329.txt
new file mode 100644
index 0000000000000000000000000000000000000000..132f0bd3b1bffca2c44f5ce7ea17ccca7c47c39a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_329.txt
@@ -0,0 +1,26 @@
+<3D Modeling from Drone Data, connectedTo, Payload Customization>
+<3D Modeling from Drone Data, connectedTo, Search and Rescue Operations>
+<AI for Drone Autonomy, connectedTo, Endurance Optimization>
+<Airspace Management for Drones, connectedTo, Flight Planning Software>
+<Airspace Management for Drones, connectedTo, Sensor Integration>
+<Autonomous Flight, connectedTo, Battery Management System>
+<Battery Management System, connectedTo, Swarm Robotics for Drones>
+<Drone Design, connectedTo, Ground Control Station Development>
+<Drone Regulations Compliance, connectedTo, Thermal Imaging with Drones>
+<Endurance Optimization, connectedTo, Drone Regulations Compliance>
+<Environmental Monitoring, connectedTo, AI for Drone Autonomy>
+<Environmental Monitoring, connectedTo, Autonomous Flight>
+<Environmental Monitoring, connectedTo, Search and Rescue Operations>
+<Environmental Monitoring, connectedTo, Sensor Integration>
+<Flight Planning Software, optimizes, Drone Design>
+<Ground Control Station Development, builds, Environmental Monitoring>
+<Ground Control Station Development, connectedTo, Search and Rescue Operations>
+<Payload Customization, connectedTo, Precision Agriculture>
+<Precision Agriculture, connectedTo, Search and Rescue Operations>
+<Precision Agriculture, connectedTo, Swarm Robotics for Drones>
+<Precision Agriculture, connectedTo, Thermal Imaging with Drones>
+<Search and Rescue Operations, connectedTo, Autonomous Flight>
+<Swarm Robotics for Drones, connectedTo, Airspace Management for Drones>
+<Swarm Robotics for Drones, connectedTo, Sensor Integration>
+<Thermal Imaging with Drones, connectedTo, Ground Control Station Development>
+<Thermal Imaging with Drones, connectedTo, Search and Rescue Operations>
diff --git a/test/diagrams/scanned_medium/diagrams_33.dot b/test/diagrams/scanned_medium/diagrams_33.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2072ef93463f2f53da53f44a86c14b6b0801b011
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_33.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=RL
+	N0 [label="Change Management" color="#A1887F" fillcolor="#EFEBE9" shape=diamond style=filled]
+	N1 [label="Employee Relations" color="#F44336" fillcolor="#FFCDD2" shape=predefinedprocess style=filled]
+	N2 [label="Workforce Planning" color="#AF56A6" fillcolor="#DDCEDD" shape=vnode_shape style=filled]
+	N3 [label="Health and Safety Management" color="#F44336" fillcolor="#FFCDD2" shape=inputoutput style=filled]
+	N4 [label="HR Information System Implementation" color="#AF56A6" fillcolor="#DDCEDD" shape=action style=filled]
+	N5 [label="Onboarding Process" color="#AF56A6" fillcolor="#DDCEDD" shape=multipledocuments style=filled]
+	N6 [label="Union Negotiations" color="#AF56A6" fillcolor="#DDCEDD" shape=rectangle style=filled]
+	N7 [label="Job Posting" color="#AF56A6" fillcolor="#DDCEDD" shape=hexagon style=filled]
+	N8 [label="Succession Planning" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	N9 [label="Work_Life Balance Initiatives" color="#A1887F" fillcolor="#EFEBE9" shape=rectangle style=filled]
+	N0 -> N1 [color="#F44336" penwidth=1.5 style=dashed label="develops" dir=forward]
+	N1 -> N2 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#AF56A6" penwidth=1.5 style=solid label="communicates" dir=forward]
+	N5 -> N6 [color="#AF56A6" penwidth=1.5 style=solid label="disciplines" dir=forward]
+	N6 -> N7 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#F44336" penwidth=1.5 style=solid label="compensates" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed label="strategies" dir=forward]
+	N9 -> N2 [color="#F44336" penwidth=1.5 style=solid label="trains" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_33.txt b/test/diagrams/scanned_medium/diagrams_33.txt
new file mode 100644
index 0000000000000000000000000000000000000000..466d80bae3092bc6791cd4763f82dc0d9f6a3cac
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_33.txt
@@ -0,0 +1,10 @@
+<Change Management, develops, Employee Relations>
+<Employee Relations, connectedTo, Workforce Planning>
+<HR Information System Implementation, communicates, Onboarding Process>
+<Health and Safety Management, connectedTo, HR Information System Implementation>
+<Job Posting, compensates, Succession Planning>
+<Onboarding Process, disciplines, Union Negotiations>
+<Succession Planning, strategies, Work_Life Balance Initiatives>
+<Union Negotiations, connectedTo, Job Posting>
+<Work_Life Balance Initiatives, trains, Workforce Planning>
+<Workforce Planning, connectedTo, Health and Safety Management>
diff --git a/test/diagrams/scanned_medium/diagrams_330.dot b/test/diagrams/scanned_medium/diagrams_330.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2225071f052167465f02a9d18156f634e7c27479
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_330.dot
@@ -0,0 +1,73 @@
+digraph {
+	rankdir=TB
+	N0 [label="Cybersecurity for AVs" color="#FFDA4E" fillcolor="#FFE88D" shape=predefinedprocess style=filled]
+	N1 [label="Cloud Connectivity for AVs" color="#FFDA4E" fillcolor="#FFE88D" shape=rect style=filled]
+	N2 [label="Remote Operation Capability" color="#CDDC39" fillcolor="#E6EE9C" shape=vnode_shape style=filled]
+	N3 [label="Object Detection and Classification" color="#CDDC39" fillcolor="#E6EE9C" shape=diamond style=filled]
+	N4 [label="Automatic Emergency Braking" color="#4285F4" fillcolor="#D0E0F8" shape=rectangle style=filled]
+	N5 [label="Perception System" color="#4285F4" fillcolor="#D0E0F8" shape=predefinedprocess style=filled]
+	N6 [label="Redundancy in Sensors" color="#CDDC39" fillcolor="#E6EE9C" shape=predefinedprocess style=filled]
+	N7 [label="Hardware Design" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	N8 [label="Simulation and Testing" color="#FFDA4E" fillcolor="#FFE88D" shape=document style=filled]
+	N9 [label="Battery Management for EVs" color="#4285F4" fillcolor="#D0E0F8" shape=multipledocuments style=filled]
+	N10 [label="Map Data Management" color="#FFDA4E" fillcolor="#FFE88D" shape=ellipse style=filled]
+	S0 [label="" color="#4285F4" fillcolor="#D0E0F8" 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="#FFDA4E" fillcolor="#FFE88D" 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]
+	M2 [label="" color="#FFDA4E" fillcolor="#FFE88D" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Adaptive Cruise Control {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Adaptive Cruise Control"
+		nest0_0 [label="Localization and Mapping" color="#FFDA4E" fillcolor="#FFE88D" shape=predefinedprocess style=filled]
+		nest0_1 [label="Over_the_Air Updates" color="#4285F4" fillcolor="#D0E0F8" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Traffic Sign Recognition {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Traffic Sign Recognition"
+		nest1_0 [label="Public Acceptance and Trust" color="#4285F4" fillcolor="#D0E0F8" shape=document style=filled]
+		nest1_1 [label="Human_Machine Interface" color="#FFDA4E" fillcolor="#FFE88D" shape=multipledocuments style=filled]
+		nest1_2 [label="Parking Assistance Systems" color="#FFDA4E" fillcolor="#FFE88D" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N8 [color="#CDDC39" 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="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N1 -> nest1_0 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N9 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#CDDC39" penwidth=1.5 style=dashed label="complies" dir=forward]
+	S0 -> N10 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#4285F4" penwidth=1.5 style=dashed label="certifies" dir=forward]
+	N3 -> S1 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#FFDA4E" penwidth=1.5 style=dashed label="routes" dir=forward]
+	S1 -> N10 [color="#000000" penwidth=1.5 style=dashed label="maintains" dir=forward]
+	N6 -> S2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N9 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#FFDA4E" penwidth=1.5 style=solid label="senses" dir=forward]
+	M0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N4 -> M2 [color="#FFDA4E" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N10 [color="#FFDA4E" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_330.txt b/test/diagrams/scanned_medium/diagrams_330.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1c0950e78d609ffaeebba02ce2f17608cc40b055
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_330.txt
@@ -0,0 +1,33 @@
+<Automatic Emergency Braking, connectedTo, Localization and Mapping>
+<Automatic Emergency Braking, connectedTo, Map Data Management>
+<Automatic Emergency Braking, connectedTo, Perception System>
+<Automatic Emergency Braking, senses, Battery Management for EVs>
+<Battery Management for EVs, connectedTo, Map Data Management>
+<Cloud Connectivity for AVs, connectedTo, Map Data Management>
+<Cloud Connectivity for AVs, connectedTo, Public Acceptance and Trust>
+<Cloud Connectivity for AVs, connectedTo, Remote Operation Capability>
+<Cybersecurity for AVs, connectedTo, Battery Management for EVs>
+<Cybersecurity for AVs, connectedTo, Cloud Connectivity for AVs>
+<Cybersecurity for AVs, connectedTo, Map Data Management>
+<Hardware Design, connectedTo, Simulation and Testing>
+<Human_Machine Interface, connectedTo, Parking Assistance Systems>
+<Localization and Mapping, connectedTo, Over_the_Air Updates>
+<Object Detection and Classification, certifies, Hardware Design>
+<Object Detection and Classification, complies, Perception System>
+<Object Detection and Classification, connectedTo, Automatic Emergency Braking>
+<Object Detection and Classification, connectedTo, Battery Management for EVs>
+<Object Detection and Classification, connectedTo, Map Data Management>
+<Object Detection and Classification, connectedTo, Redundancy in Sensors>
+<Object Detection and Classification, maintains, Map Data Management>
+<Object Detection and Classification, routes, Perception System>
+<Over_the_Air Updates, connectedTo, Simulation and Testing>
+<Parking Assistance Systems, connectedTo, Battery Management for EVs>
+<Perception System, connectedTo, Redundancy in Sensors>
+<Public Acceptance and Trust, connectedTo, Human_Machine Interface>
+<Redundancy in Sensors, connectedTo, Battery Management for EVs>
+<Redundancy in Sensors, connectedTo, Hardware Design>
+<Redundancy in Sensors, connectedTo, Map Data Management>
+<Redundancy in Sensors, connectedTo, Simulation and Testing>
+<Remote Operation Capability, connectedTo, Map Data Management>
+<Remote Operation Capability, connectedTo, Object Detection and Classification>
+<Simulation and Testing, connectedTo, Battery Management for EVs>
diff --git a/test/diagrams/scanned_medium/diagrams_331.dot b/test/diagrams/scanned_medium/diagrams_331.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8dcd6c9ba60694e84b0b23667fc0adfbb9e8cf87
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_331.dot
@@ -0,0 +1,85 @@
+digraph {
+	rankdir=RL
+	N0 [label="User Rating and Feedback Systems" color="#03A9F4" fillcolor="#B3E5FC" shape=rectangle style=filled]
+	N1 [label="Autonomous Shared Vehicles" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	N2 [label="Scooter_sharing Services" color="#FFB2A5" fillcolor="#FFDCD6" shape=database style=filled]
+	N3 [label="User Onboarding" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N4 [label="Fraud Prevention" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N5 [label="Platform Development" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N6 [label="Charging or Refueling Logistics" color="#03A9F4" fillcolor="#B3E5FC" shape=inputoutput style=filled]
+	N7 [label="Route Optimization" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+	N8 [label="Passenger Safety Protocols" color="#FFB2A5" fillcolor="#FFDCD6" shape=rectangle style=filled]
+	N9 [label="Carbon Emission Tracking" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N10 [label="Fleet Management" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+	N11 [label="Insurance Models" color="#03A9F4" fillcolor="#B3E5FC" shape=vnode_shape style=filled]
+	N12 [label="Smart City Integration" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+	N13 [label="Policy Advocacy for Shared Mobility" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+	N14 [label="Driver Management" color="#03A9F4" fillcolor="#B3E5FC" shape=database style=filled]
+	N15 [label="First_Mile or Last_Mile Solutions" color="#03A9F4" fillcolor="#B3E5FC" shape=preparation style=filled]
+	S0 [label="" color="#03A9F4" fillcolor="#B3E5FC" 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]
+	S2 [label="" color="#03A9F4" fillcolor="#B3E5FC" 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="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#03A9F4" fillcolor="#B3E5FC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Accessibility for Users {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Accessibility for Users"
+		nest0_0 [label="Bike_sharing Services" color="#66BB6A" fillcolor="#E8F5E9" shape=database style=filled]
+		nest0_1 [label="Vehicle Rebalancing" color="#FFB2A5" fillcolor="#FFDCD6" shape=predefinedprocess style=filled]
+		nest0_2 [label="Regulatory Compliance" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+		nest0_3 [label="Geofencing for Operations" color="#66BB6A" fillcolor="#E8F5E9" shape=multipledocuments style=filled]
+	}
+	subgraph cluster_Dynamic Pricing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Dynamic Pricing"
+		nest1_0 [label="Vehicle Location Tracking" color="#03A9F4" fillcolor="#B3E5FC" shape=multipledocuments style=filled]
+		nest1_1 [label="Payment Processing" color="#66BB6A" fillcolor="#E8F5E9" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#03A9F4" penwidth=1.5 style=dashed label="cleans" dir=forward]
+	N10 -> N11 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#03A9F4" penwidth=1.5 style=solid label="complies" dir=forward]
+	nest0_0 -> nest0_1 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest1_0 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N10 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N5 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N8 -> S1 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#03A9F4" penwidth=1.5 style=dashed label="parks" dir=forward]
+	S1 -> N13 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N12 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N14 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	S2 -> N15 [color="#66BB6A" penwidth=1.5 style=solid label="dispatches" dir=forward]
+	N0 -> M0 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N6 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N11 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N3 -> M2 [color="#FFB2A5" penwidth=1.5 style=solid label="forecasts" dir=forward]
+	N0 -> M2 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N6 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_331.txt b/test/diagrams/scanned_medium/diagrams_331.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4467499f2747ae8aac9923efeb9c2f37a30f669c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_331.txt
@@ -0,0 +1,37 @@
+<Autonomous Shared Vehicles, connectedTo, Scooter_sharing Services>
+<Bike_sharing Services, connectedTo, Vehicle Rebalancing>
+<Carbon Emission Tracking, cleans, Fleet Management>
+<Charging or Refueling Logistics, connectedTo, Bike_sharing Services>
+<Charging or Refueling Logistics, connectedTo, Insurance Models>
+<Charging or Refueling Logistics, connectedTo, Route Optimization>
+<Driver Management, complies, First_Mile or Last_Mile Solutions>
+<Fleet Management, connectedTo, Insurance Models>
+<Fraud Prevention, connectedTo, Platform Development>
+<Fraud Prevention, connectedTo, Vehicle Location Tracking>
+<Geofencing for Operations, connectedTo, Charging or Refueling Logistics>
+<Insurance Models, connectedTo, Smart City Integration>
+<Passenger Safety Protocols, connectedTo, Carbon Emission Tracking>
+<Passenger Safety Protocols, connectedTo, Driver Management>
+<Passenger Safety Protocols, connectedTo, Insurance Models>
+<Passenger Safety Protocols, connectedTo, Policy Advocacy for Shared Mobility>
+<Passenger Safety Protocols, parks, Smart City Integration>
+<Payment Processing, connectedTo, Fleet Management>
+<Platform Development, connectedTo, Charging or Refueling Logistics>
+<Platform Development, connectedTo, Insurance Models>
+<Policy Advocacy for Shared Mobility, connectedTo, Driver Management>
+<Regulatory Compliance, connectedTo, Geofencing for Operations>
+<Route Optimization, connectedTo, Passenger Safety Protocols>
+<Scooter_sharing Services, connectedTo, Charging or Refueling Logistics>
+<Scooter_sharing Services, connectedTo, Platform Development>
+<Scooter_sharing Services, connectedTo, Smart City Integration>
+<Scooter_sharing Services, connectedTo, User Onboarding>
+<Smart City Integration, connectedTo, Driver Management>
+<Smart City Integration, connectedTo, Policy Advocacy for Shared Mobility>
+<Smart City Integration, dispatches, First_Mile or Last_Mile Solutions>
+<User Onboarding, connectedTo, Charging or Refueling Logistics>
+<User Onboarding, connectedTo, Fraud Prevention>
+<User Onboarding, forecasts, Charging or Refueling Logistics>
+<User Rating and Feedback Systems, connectedTo, Autonomous Shared Vehicles>
+<User Rating and Feedback Systems, connectedTo, Charging or Refueling Logistics>
+<Vehicle Location Tracking, connectedTo, Payment Processing>
+<Vehicle Rebalancing, connectedTo, Regulatory Compliance>
diff --git a/test/diagrams/scanned_medium/diagrams_332.dot b/test/diagrams/scanned_medium/diagrams_332.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d192eb96cd8b9d3f256f4f62a29ce088eff61e9d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_332.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=BT
+	N0 [label="Access Control Systems" color="#5C6BC0" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N1 [label="Parking Guidance Systems" color="#DCE775" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N2 [label="Customer Support" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N3 [label="License Plate Recognition" color="#FFA726" fillcolor="#FFF3E0" shape=document style=filled]
+	N4 [label="Valet Parking Automation" color="#DCE775" fillcolor="#F9FBE7" shape=vnode_shape style=filled]
+	N5 [label="Integration with Navigation Apps" color="#DCE775" fillcolor="#F9FBE7" shape=document style=filled]
+	N6 [label="Reservations System" color="#DCE775" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N7 [label="Security Surveillance" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+	N8 [label="User Experience Design for Apps" color="#FFA726" fillcolor="#FFF3E0" shape=hexagon style=filled]
+	N9 [label="Dynamic Pricing" color="#FFA726" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	N10 [label="Violation Detection" color="#5C6BC0" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	N11 [label="Real_Time Information Display" color="#FFA726" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+	N12 [label="Barrier Gate Control" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+	N13 [label="Vacancy Monitoring" color="#DCE775" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N14 [label="Revenue Management" color="#FFA726" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	N15 [label="Space Detection" color="#DCE775" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	N16 [label="Permit Management" color="#5C6BC0" fillcolor="#E8EAF6" shape=predefinedprocess style=filled]
+	N17 [label="Intelligent Traffic Management Interaction" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	S0 [label="" color="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#DCE775" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#5C6BC0" fillcolor="#E8EAF6" 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]
+	M1 [label="" color="#DCE775" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Electric Vehicle Charging Integration {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Electric Vehicle Charging Integration"
+		nest0_0 [label="Automated Parking Garages" color="#FFA726" fillcolor="#FFF3E0" shape=action style=filled]
+		nest0_1 [label="Enforcement and Fines Management" color="#FFA726" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+		nest0_2 [label="Smart City Integration for Parking" color="#FFA726" fillcolor="#FFF3E0" shape=preparation style=filled]
+	}
+	subgraph cluster_Cloud_based Parking Platforms {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cloud_based Parking Platforms"
+		nest1_0 [label="Environmental Impact Monitoring" color="#5C6BC0" fillcolor="#E8EAF6" shape=preparation style=filled]
+		nest1_1 [label="Data Analytics for Parking Usage" color="#DCE775" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#DCE775" penwidth=1.5 style=dashed label="filters" dir=forward]
+	N4 -> N5 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#5C6BC0" penwidth=1.5 style=solid label="processes" 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="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid label="guides" dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#5C6BC0" penwidth=1.5 style=solid label="communicates" dir=forward]
+	N14 -> N15 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#5C6BC0" penwidth=1.5 style=solid label="identifies" dir=forward]
+	N16 -> N17 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N16 -> nest0_0 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N1 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N11 -> S0 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	S0 -> N17 [color="#DCE775" penwidth=1.5 style=solid dir=forward]
+	S0 -> N16 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N8 -> S1 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N16 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	S1 -> N12 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N14 -> S2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N16 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N17 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N14 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#DCE775" penwidth=1.5 style=solid 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_medium/diagrams_332.txt b/test/diagrams/scanned_medium/diagrams_332.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4835416cf9fbe94f76eab7565a8fca7f1fca5de7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_332.txt
@@ -0,0 +1,36 @@
+<Access Control Systems, connectedTo, Parking Guidance Systems>
+<Automated Parking Garages, connectedTo, Enforcement and Fines Management>
+<Barrier Gate Control, connectedTo, Vacancy Monitoring>
+<Customer Support, connectedTo, License Plate Recognition>
+<Customer Support, connectedTo, Reservations System>
+<Data Analytics for Parking Usage, connectedTo, Parking Guidance Systems>
+<Dynamic Pricing, connectedTo, Violation Detection>
+<Enforcement and Fines Management, connectedTo, Smart City Integration for Parking>
+<Environmental Impact Monitoring, connectedTo, Data Analytics for Parking Usage>
+<Integration with Navigation Apps, connectedTo, Reservations System>
+<Integration with Navigation Apps, connectedTo, Revenue Management>
+<License Plate Recognition, connectedTo, Reservations System>
+<License Plate Recognition, filters, Valet Parking Automation>
+<Parking Guidance Systems, connectedTo, Customer Support>
+<Parking Guidance Systems, connectedTo, Reservations System>
+<Permit Management, connectedTo, Automated Parking Garages>
+<Permit Management, connectedTo, Intelligent Traffic Management Interaction>
+<Real_Time Information Display, connectedTo, Intelligent Traffic Management Interaction>
+<Real_Time Information Display, connectedTo, Permit Management>
+<Real_Time Information Display, guides, Barrier Gate Control>
+<Reservations System, connectedTo, Environmental Impact Monitoring>
+<Reservations System, connectedTo, Security Surveillance>
+<Revenue Management, connectedTo, Intelligent Traffic Management Interaction>
+<Revenue Management, connectedTo, Permit Management>
+<Revenue Management, connectedTo, Space Detection>
+<Security Surveillance, processes, User Experience Design for Apps>
+<Smart City Integration for Parking, connectedTo, Revenue Management>
+<Space Detection, identifies, Permit Management>
+<User Experience Design for Apps, connectedTo, Barrier Gate Control>
+<User Experience Design for Apps, connectedTo, Dynamic Pricing>
+<User Experience Design for Apps, connectedTo, Permit Management>
+<User Experience Design for Apps, connectedTo, Real_Time Information Display>
+<Vacancy Monitoring, communicates, Revenue Management>
+<Valet Parking Automation, connectedTo, Integration with Navigation Apps>
+<Valet Parking Automation, connectedTo, Revenue Management>
+<Violation Detection, connectedTo, Real_Time Information Display>
diff --git a/test/diagrams/scanned_medium/diagrams_333.dot b/test/diagrams/scanned_medium/diagrams_333.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7107b07d985799f100be9837be11d359aac2b097
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_333.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=BT
+	N0 [label="Post_Event Feedback Collection" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N1 [label="Ticket Delivery" color="#00BCD4" fillcolor="#E0F7FA" shape=inputoutput style=filled]
+	N2 [label="Museum Ticketing" color="#C2B2F0" fillcolor="#EFE6FF" shape=document style=filled]
+	N3 [label="Refund Management" color="#C2B2F0" fillcolor="#EFE6FF" shape=hexagon style=filled]
+	N4 [label="Airline Ticketing" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+	N5 [label="Sports Event Ticketing" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	N6 [label="Audience Segmentation" color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+	N7 [label="Theater Ticketing" color="#C2B2F0" fillcolor="#EFE6FF" shape=vnode_shape style=filled]
+	N8 [label="Seat Mapping" color="#00BCD4" fillcolor="#E0F7FA" shape=document style=filled]
+	N9 [label="Concert Ticketing" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N10 [label="Event Creation" color="#FFB2A5" fillcolor="#FFDCD6" shape=box style=filled]
+	N11 [label="Queue Management" color="#C2B2F0" fillcolor="#EFE6FF" shape=parallelogram style=filled]
+	N12 [label="Festival Ticketing" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	S0 [label="" color="#00BCD4" fillcolor="#E0F7FA" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#00BCD4" fillcolor="#E0F7FA" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#00BCD4" fillcolor="#E0F7FA" 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_Personalized Ticket Offers {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Personalized Ticket Offers"
+		nest0_0 [label="Pricing Configuration" color="#FFB2A5" fillcolor="#FFDCD6" shape=diamond style=filled]
+		nest0_1 [label="Analytics on Sales Data" color="#FFB2A5" fillcolor="#FFDCD6" shape=multipledocuments style=filled]
+		nest0_2 [label="Access Control" color="#FFB2A5" fillcolor="#FFDCD6" shape=rectangle style=filled]
+		nest0_3 [label="Public Transport Ticketing" color="#FFB2A5" fillcolor="#FFDCD6" shape=database style=filled]
+	}
+	subgraph cluster_Agent Network Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Agent Network Management"
+		nest1_0 [label="Promotional Code Management" color="#C2B2F0" fillcolor="#EFE6FF" shape=predefinedprocess style=filled]
+		nest1_1 [label="Event Promotion Tools" color="#FFB2A5" fillcolor="#FFDCD6" shape=rect style=filled]
+		nest1_2 [label="Order Confirmation" color="#FFB2A5" fillcolor="#FFDCD6" shape=rect style=filled]
+		nest1_3 [label="Theme Park Ticketing" color="#C2B2F0" fillcolor="#EFE6FF" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed 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=dashed dir=forward]
+	N6 -> N7 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFB2A5" penwidth=1.5 style=solid label="forecasts" dir=forward]
+	N10 -> N11 [color="#FFB2A5" penwidth=1.5 style=dashed label="payments" dir=forward]
+	N11 -> N12 [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=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest1_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_3 -> N1 [color="#00BCD4" penwidth=1.5 style=dashed label="responds" dir=forward]
+	N3 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#00BCD4" penwidth=1.5 style=solid dir=forward]
+	N2 -> S1 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N3 -> M0 [color="#00BCD4" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid label="sells" dir=forward]
+	M0 -> N7 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N7 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_333.txt b/test/diagrams/scanned_medium/diagrams_333.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4dd516b4e9734c26543860616ea39f8ac3cf4a5b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_333.txt
@@ -0,0 +1,31 @@
+<Access Control, connectedTo, Public Transport Ticketing>
+<Airline Ticketing, connectedTo, Promotional Code Management>
+<Airline Ticketing, connectedTo, Sports Event Ticketing>
+<Airline Ticketing, connectedTo, Theater Ticketing>
+<Analytics on Sales Data, connectedTo, Access Control>
+<Audience Segmentation, connectedTo, Theater Ticketing>
+<Concert Ticketing, forecasts, Event Creation>
+<Event Creation, connectedTo, Pricing Configuration>
+<Event Creation, payments, Queue Management>
+<Event Promotion Tools, connectedTo, Order Confirmation>
+<Museum Ticketing, connectedTo, Concert Ticketing>
+<Museum Ticketing, connectedTo, Event Creation>
+<Museum Ticketing, connectedTo, Festival Ticketing>
+<Museum Ticketing, connectedTo, Refund Management>
+<Museum Ticketing, sells, Theater Ticketing>
+<Order Confirmation, connectedTo, Theme Park Ticketing>
+<Post_Event Feedback Collection, connectedTo, Ticket Delivery>
+<Pricing Configuration, connectedTo, Analytics on Sales Data>
+<Promotional Code Management, connectedTo, Event Promotion Tools>
+<Public Transport Ticketing, connectedTo, Queue Management>
+<Queue Management, connectedTo, Festival Ticketing>
+<Refund Management, connectedTo, Airline Ticketing>
+<Refund Management, connectedTo, Audience Segmentation>
+<Refund Management, connectedTo, Seat Mapping>
+<Refund Management, connectedTo, Theater Ticketing>
+<Seat Mapping, connectedTo, Concert Ticketing>
+<Sports Event Ticketing, connectedTo, Audience Segmentation>
+<Sports Event Ticketing, connectedTo, Theater Ticketing>
+<Theater Ticketing, connectedTo, Seat Mapping>
+<Theme Park Ticketing, responds, Ticket Delivery>
+<Ticket Delivery, connectedTo, Museum Ticketing>
diff --git a/test/diagrams/scanned_medium/diagrams_334.dot b/test/diagrams/scanned_medium/diagrams_334.dot
new file mode 100644
index 0000000000000000000000000000000000000000..95ca2901603384effa6a7855ba4a4d2330b529e9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_334.dot
@@ -0,0 +1,79 @@
+digraph {
+	rankdir=RL
+	N0 [label="Penetration Testing" color="#FFA726" fillcolor="#FFF3E0" shape=preparation style=filled]
+	N1 [label="Auditability" color="#BA68C8" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N2 [label="Hardware Tamper Detection" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N3 [label="Public Trust Building" color="#BA68C8" fillcolor="#F3E5F5" shape=box style=filled]
+	N4 [label="Voting Machine Design" color="#7E57C2" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+	N5 [label="Undue Influence Prevention" color="#FFA726" fillcolor="#FFF3E0" shape=vnode_shape style=filled]
+	N6 [label="Remote Voting Solutions" color="#BA68C8" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+	N7 [label="Voter Registration" color="#7E57C2" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	N8 [label="Voter Authentication" color="#BA68C8" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	N9 [label="Cybersecurity for Voting Systems" color="#BA68C8" fillcolor="#F3E5F5" shape=preparation style=filled]
+	N10 [label="System Certification" color="#7E57C2" fillcolor="#EDE7F6" shape=preparation style=filled]
+	N11 [label="Zero_Knowledge Proofs for Privacy" color="#BA68C8" fillcolor="#F3E5F5" shape=rectangle style=filled]
+	N12 [label="Ballot Creation" color="#7E57C2" fillcolor="#EDE7F6" shape=rectangle style=filled]
+	N13 [label="Voter Education Programs" color="#FFA726" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+	N14 [label="Risk Management for Elections" color="#FFA726" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+	N15 [label="Touchscreen Voting Machines" color="#FFA726" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	N16 [label="Post_Election Audits" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+	N17 [label="Blockchain for Voting" color="#FFA726" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	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="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Optical Scan Systems {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Optical Scan Systems"
+		nest0_0 [label="Biometric Voter ID" color="#BA68C8" fillcolor="#F3E5F5" shape=preparation style=filled]
+		nest0_1 [label="Voter Privacy Protection" color="#FFA726" fillcolor="#FFF3E0" shape=vnode_shape style=filled]
+		nest0_2 [label="Security Protocols" color="#BA68C8" fillcolor="#F3E5F5" shape=rect style=filled]
+	}
+	subgraph cluster_Cryptographic Security {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Cryptographic Security"
+		nest1_0 [label="Anonymous Credential Systems" color="#7E57C2" fillcolor="#EDE7F6" shape=hexagon style=filled]
+		nest1_1 [label="Online Voting Systems" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+		nest1_2 [label="Results Aggregation" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+		nest1_3 [label="Direct Recording Electronic Systems" color="#BA68C8" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="counts" dir=forward]
+	N2 -> N3 [color="#BA68C8" penwidth=1.5 style=solid label="stores" dir=forward]
+	N3 -> N4 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#7E57C2" penwidth=1.5 style=solid label="encrypts" dir=forward]
+	N6 -> N7 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#7E57C2" penwidth=1.5 style=dashed label="registers" dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#BA68C8" penwidth=1.5 style=solid 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="#FFA726" 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="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N16 -> nest0_0 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N6 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFA726" 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="#BA68C8" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	N12 -> nest1_0 [color="#FFA726" penwidth=1.5 style=dashed label="certifies" dir=forward]
+	nest1_3 -> N14 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N9 -> S1 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N17 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N16 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N11 -> M0 [color="#7E57C2" penwidth=1.5 style=dashed label="informs" dir=forward]
+	N7 -> M0 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N16 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> M1 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	M1 -> N12 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_334.txt b/test/diagrams/scanned_medium/diagrams_334.txt
new file mode 100644
index 0000000000000000000000000000000000000000..469e5544615398fc21717dafd368f43f2fcefb81
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_334.txt
@@ -0,0 +1,35 @@
+<Anonymous Credential Systems, connectedTo, Online Voting Systems>
+<Auditability, counts, Hardware Tamper Detection>
+<Ballot Creation, certifies, Anonymous Credential Systems>
+<Ballot Creation, connectedTo, Voter Education Programs>
+<Biometric Voter ID, connectedTo, Voter Privacy Protection>
+<Cybersecurity for Voting Systems, connectedTo, Blockchain for Voting>
+<Cybersecurity for Voting Systems, connectedTo, Post_Election Audits>
+<Cybersecurity for Voting Systems, connectedTo, System Certification>
+<Cybersecurity for Voting Systems, connectedTo, Voter Education Programs>
+<Cybersecurity for Voting Systems, connectedTo, Zero_Knowledge Proofs for Privacy>
+<Direct Recording Electronic Systems, connectedTo, Risk Management for Elections>
+<Hardware Tamper Detection, stores, Public Trust Building>
+<Online Voting Systems, connectedTo, Results Aggregation>
+<Penetration Testing, connectedTo, Auditability>
+<Post_Election Audits, connectedTo, Biometric Voter ID>
+<Post_Election Audits, connectedTo, Blockchain for Voting>
+<Public Trust Building, connectedTo, Voting Machine Design>
+<Remote Voting Solutions, connectedTo, Ballot Creation>
+<Remote Voting Solutions, connectedTo, Voter Registration>
+<Results Aggregation, communicates, Direct Recording Electronic Systems>
+<Risk Management for Elections, connectedTo, Touchscreen Voting Machines>
+<Security Protocols, connectedTo, Remote Voting Solutions>
+<System Certification, registers, Zero_Knowledge Proofs for Privacy>
+<Touchscreen Voting Machines, connectedTo, Post_Election Audits>
+<Undue Influence Prevention, encrypts, Remote Voting Solutions>
+<Voter Authentication, connectedTo, Cybersecurity for Voting Systems>
+<Voter Education Programs, connectedTo, Risk Management for Elections>
+<Voter Privacy Protection, connectedTo, Security Protocols>
+<Voter Registration, connectedTo, Ballot Creation>
+<Voter Registration, connectedTo, Post_Election Audits>
+<Voter Registration, connectedTo, Voter Authentication>
+<Voting Machine Design, connectedTo, Ballot Creation>
+<Voting Machine Design, connectedTo, Undue Influence Prevention>
+<Zero_Knowledge Proofs for Privacy, connectedTo, Ballot Creation>
+<Zero_Knowledge Proofs for Privacy, informs, Post_Election Audits>
diff --git a/test/diagrams/scanned_medium/diagrams_335.dot b/test/diagrams/scanned_medium/diagrams_335.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6ccf913453f5819ec927d4d72501400f2b7c6086
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_335.dot
@@ -0,0 +1,77 @@
+digraph {
+	rankdir=RL
+	N0 [label="Implementation Plan Development" color="#BDAFA8" fillcolor="#E4E0DF" shape=multipledocuments style=filled]
+	N1 [label="Risk Assessment" color="#BDAFA8" fillcolor="#E4E0DF" shape=diamond style=filled]
+	N2 [label="Legal Review" color="#FFF8A6" fillcolor="#FFFDE0" shape=inputoutput style=filled]
+	N3 [label="Criteria Establishment" color="#9575CD" fillcolor="#EDE7F6" shape=document style=filled]
+	N4 [label="Non_profit Policy Influence" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N5 [label="Local Government Policy" color="#9575CD" fillcolor="#EDE7F6" shape=database style=filled]
+	N6 [label="Monitoring and Evaluation Framework" color="#FFF8A6" fillcolor="#FFFDE0" shape=rectangle style=filled]
+	N7 [label="National Policy Development" color="#FFF8A6" fillcolor="#FFFDE0" shape=document style=filled]
+	N8 [label="Option Generation" color="#BDAFA8" fillcolor="#E4E0DF" shape=box style=filled]
+	N9 [label="Policy Brief Writing" color="#FFF8A6" fillcolor="#FFFDE0" shape=ellipse style=filled]
+	N10 [label="Feasibility Study" color="#FFF8A6" fillcolor="#FFFDE0" shape=rectangle style=filled]
+	N11 [label="International Policy Analysis" color="#9575CD" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+	N12 [label="Regulatory Impact Assessment" color="#9575CD" fillcolor="#EDE7F6" shape=hexagon style=filled]
+	N13 [label="Ethical Considerations" color="#BDAFA8" fillcolor="#E4E0DF" shape=vnode_shape style=filled]
+	N14 [label="Policy Evaluation" color="#9575CD" fillcolor="#EDE7F6" shape=vnode_shape style=filled]
+	N15 [label="Public Opinion Research" color="#BDAFA8" fillcolor="#E4E0DF" shape=ellipse style=filled]
+	S0 [label="" color="#FFF8A6" fillcolor="#FFFDE0" 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="#9575CD" fillcolor="#EDE7F6" 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]
+	M2 [label="" color="#9575CD" fillcolor="#EDE7F6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Recommendation Formulation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Recommendation Formulation"
+		nest0_0 [label="Quantitative Analysis" color="#BDAFA8" fillcolor="#E4E0DF" shape=parallelogram style=filled]
+		nest0_1 [label="Qualitative Analysis" color="#BDAFA8" fillcolor="#E4E0DF" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Evidence_Based Policymaking {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Evidence_Based Policymaking"
+		nest1_0 [label="Presentation Skills" color="#9575CD" fillcolor="#EDE7F6" shape=parallelogram style=filled]
+		nest1_1 [label="Cost_Benefit Analysis" color="#9575CD" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid 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="#9575CD" 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 dir=forward]
+	N6 -> N7 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
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+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#BDAFA8" penwidth=1.5 style=dashed label="secures" dir=forward]
+	nest0_1 -> N2 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest1_0 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N10 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N2 -> S0 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
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+	S0 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N12 -> S1 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
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+	S2 -> N14 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
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+	N9 -> M0 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N7 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#FFF8A6" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N15 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#9575CD" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	M2 -> N6 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_335.txt b/test/diagrams/scanned_medium/diagrams_335.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a037003399f4f2912b36d1bf326237271f514317
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_335.txt
@@ -0,0 +1,34 @@
+<Cost_Benefit Analysis, connectedTo, Feasibility Study>
+<Criteria Establishment, connectedTo, Non_profit Policy Influence>
+<Ethical Considerations, connectedTo, Policy Evaluation>
+<Feasibility Study, connectedTo, International Policy Analysis>
+<Implementation Plan Development, connectedTo, Criteria Establishment>
+<Implementation Plan Development, connectedTo, Monitoring and Evaluation Framework>
+<Implementation Plan Development, connectedTo, Policy Brief Writing>
+<Implementation Plan Development, connectedTo, Policy Evaluation>
+<Implementation Plan Development, connectedTo, Risk Assessment>
+<International Policy Analysis, connectedTo, Regulatory Impact Assessment>
+<Legal Review, connectedTo, Criteria Establishment>
+<Legal Review, connectedTo, Monitoring and Evaluation Framework>
+<Legal Review, connectedTo, National Policy Development>
+<Legal Review, connectedTo, Non_profit Policy Influence>
+<Legal Review, connectedTo, Presentation Skills>
+<Legal Review, connectedTo, Public Opinion Research>
+<Legal Review, connectedTo, Regulatory Impact Assessment>
+<Local Government Policy, connectedTo, Monitoring and Evaluation Framework>
+<Monitoring and Evaluation Framework, connectedTo, National Policy Development>
+<National Policy Development, connectedTo, Option Generation>
+<National Policy Development, connectedTo, Public Opinion Research>
+<Non_profit Policy Influence, connectedTo, Local Government Policy>
+<Option Generation, connectedTo, Policy Brief Writing>
+<Policy Brief Writing, connectedTo, Feasibility Study>
+<Policy Brief Writing, connectedTo, Public Opinion Research>
+<Policy Brief Writing, secures, Quantitative Analysis>
+<Policy Evaluation, connectedTo, Public Opinion Research>
+<Presentation Skills, connectedTo, Cost_Benefit Analysis>
+<Qualitative Analysis, connectedTo, Legal Review>
+<Quantitative Analysis, connectedTo, Qualitative Analysis>
+<Regulatory Impact Assessment, connectedTo, Ethical Considerations>
+<Regulatory Impact Assessment, connectedTo, Policy Evaluation>
+<Regulatory Impact Assessment, connectedTo, Public Opinion Research>
+<Risk Assessment, connectedTo, Legal Review>
diff --git a/test/diagrams/scanned_medium/diagrams_336.txt b/test/diagrams/scanned_medium/diagrams_336.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f9b0d4682cce7b260ecfe7eb066877417d7f1281
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_336.txt
@@ -0,0 +1,26 @@
+<Academic Mentorship, connectedTo, Data Visualization for Research>
+<Citation Management, connectedTo, Peer Review Process>
+<Data Analysis, connectedTo, Citation Management>
+<Data Collection, connectedTo, Data Analysis>
+<Data Visualization for Research, connectedTo, Research Design>
+<Funding Agency Reporting, connectedTo, Methodology Selection>
+<Funding Agency Reporting, connectedTo, Sampling Techniques>
+<Grant Proposal Writing, connectedTo, Research Design>
+<Literature Review, connectedTo, Funding Agency Reporting>
+<Literature Review, connectedTo, Grant Proposal Writing>
+<Literature Review, connectedTo, Hypothesis Formulation>
+<Literature Review, connectedTo, Methodology Selection>
+<Literature Review, connectedTo, Survey Design>
+<Methodology Selection, connectedTo, Survey Design>
+<Peer Review Process, connectedTo, Grant Proposal Writing>
+<Research Design, connectedTo, Hypothesis Formulation>
+<Sampling Techniques, connectedTo, Academic Mentorship>
+<Sampling Techniques, experimentals, Methodology Selection>
+<Software for Statistical Analysis, connectedTo, Data Collection>
+<Survey Design, connectedTo, Peer Review Process>
+<Survey Design, connectedTo, Software for Statistical Analysis>
+<Theory Development, connectedTo, Grant Proposal Writing>
+<Theory Development, connectedTo, Hypothesis Formulation>
+<Theory Development, connectedTo, Literature Review>
+<Theory Development, connectedTo, Methodology Selection>
+<Theory Development, connectedTo, Survey Design>
diff --git a/test/diagrams/scanned_medium/diagrams_337.dot b/test/diagrams/scanned_medium/diagrams_337.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8b8f84a4eec95a4c6a4196d55aa0f89b065f7b37
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_337.dot
@@ -0,0 +1,60 @@
+digraph {
+	rankdir=RL
+	N0 [label="Data Migration" color="#82DAFF" fillcolor="#C8EDFF" shape=rectangle style=filled]
+	N1 [label="Linked Data for Libraries" color="#AED581" fillcolor="#F0F4C3" shape=preparation style=filled]
+	N2 [label="Technical Support for Systems" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+	N3 [label="Online Public Access Catalog" color="#E0E0E0" fillcolor="#EBEBEB" shape=multipledocuments style=filled]
+	N4 [label="Resource Sharing Networks" color="#AED581" fillcolor="#F0F4C3" shape=vnode_shape style=filled]
+	N5 [label="Library Management Systems" color="#AED581" fillcolor="#F0F4C3" shape=predefinedprocess style=filled]
+	N6 [label="Database Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=multipledocuments style=filled]
+	N7 [label="Subject Indexing" color="#AED581" fillcolor="#F0F4C3" shape=vnode_shape style=filled]
+	N8 [label="System Upgrades" color="#AED581" fillcolor="#F0F4C3" shape=multipledocuments style=filled]
+	N9 [label="System Security" color="#AED581" fillcolor="#F0F4C3" shape=document style=filled]
+	N10 [label="Reference Desk Support" color="#AED581" fillcolor="#F0F4C3" shape=rectangle style=filled]
+	N11 [label="Circulation Management" color="#82DAFF" fillcolor="#C8EDFF" shape=ellipse style=filled]
+	N12 [label="Collection Development" color="#82DAFF" fillcolor="#C8EDFF" shape=preparation style=filled]
+	S0 [label="" color="#AED581" fillcolor="#F0F4C3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#E0E0E0" fillcolor="#EBEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#E0E0E0" fillcolor="#EBEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Discovery Layers {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Discovery Layers"
+		nest0_0 [label="Federated Search" color="#E0E0E0" fillcolor="#EBEBEB" shape=database style=filled]
+		nest0_1 [label="Preservation of Materials" color="#E0E0E0" fillcolor="#EBEBEB" shape=action style=filled]
+	}
+	subgraph cluster_Serials Control {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Serials Control"
+		nest1_0 [label="Electronic Resource Management" color="#AED581" fillcolor="#F0F4C3" shape=rectangle style=filled]
+		nest1_1 [label="RFID System Implementation" color="#82DAFF" fillcolor="#C8EDFF" shape=diamond style=filled]
+	}
+	N0 -> N1 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
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+	N5 -> N6 [color="#AED581" penwidth=1.5 style=solid dir=forward]
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+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#AED581" penwidth=1.5 style=dashed label="displays" dir=forward]
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+	nest0_0 -> nest0_1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N11 [color="#000000" penwidth=1.5 style=solid label="reserves" dir=forward]
+	nest1_0 -> nest1_1 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N8 -> nest1_0 [color="#AED581" penwidth=1.5 style=solid dir=forward]
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+	S1 -> N11 [color="#000000" penwidth=1.5 style=dashed label="weeds" dir=forward]
+	N7 -> S2 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
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+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_337.txt b/test/diagrams/scanned_medium/diagrams_337.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6936bfb582953c7113571060064f7816826233b1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_337.txt
@@ -0,0 +1,24 @@
+<Circulation Management, connectedTo, Collection Development>
+<Data Migration, connectedTo, Linked Data for Libraries>
+<Database Management, connectedTo, Subject Indexing>
+<Electronic Resource Management, connectedTo, RFID System Implementation>
+<Federated Search, connectedTo, Preservation of Materials>
+<Library Management Systems, connectedTo, Database Management>
+<Linked Data for Libraries, connectedTo, Technical Support for Systems>
+<Online Public Access Catalog, connectedTo, Federated Search>
+<Online Public Access Catalog, connectedTo, Resource Sharing Networks>
+<Preservation of Materials, reserves, Circulation Management>
+<RFID System Implementation, connectedTo, Circulation Management>
+<Reference Desk Support, connectedTo, Circulation Management>
+<Resource Sharing Networks, connectedTo, Library Management Systems>
+<Subject Indexing, connectedTo, Circulation Management>
+<Subject Indexing, connectedTo, Reference Desk Support>
+<Subject Indexing, connectedTo, System Upgrades>
+<System Security, connectedTo, Collection Development>
+<System Security, connectedTo, Reference Desk Support>
+<System Security, weeds, Circulation Management>
+<System Upgrades, connectedTo, Electronic Resource Management>
+<System Upgrades, displays, System Security>
+<Technical Support for Systems, connectedTo, Library Management Systems>
+<Technical Support for Systems, connectedTo, Online Public Access Catalog>
+<Technical Support for Systems, connectedTo, Resource Sharing Networks>
diff --git a/test/diagrams/scanned_medium/diagrams_338.dot b/test/diagrams/scanned_medium/diagrams_338.dot
new file mode 100644
index 0000000000000000000000000000000000000000..536603dbdb3773a896ad32d12c276cde9003edc6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_338.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=TB
+	N0 [label="Records Management Integration" color="#FFB74D" fillcolor="#FFF3E0" shape=database style=filled]
+	N1 [label="Arrangement and Description" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N2 [label="Intellectual Property Rights Management" color="#73C6BC" fillcolor="#D0EFEE" shape=inputoutput style=filled]
+	N3 [label="Exhibition Curation" color="#73C6BC" fillcolor="#D0EFEE" shape=rect style=filled]
+	N4 [label="Authority Control for Archival Names" color="#FFB74D" fillcolor="#FFF3E0" shape=predefinedprocess style=filled]
+	N5 [label="User Interface for Digital Archives" color="#73C6BC" fillcolor="#D0EFEE" shape=action style=filled]
+	N6 [label="Security of Holdings" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N7 [label="Collection Management Policy" color="#73C6BC" fillcolor="#D0EFEE" shape=preparation style=filled]
+	N8 [label="Preservation Planning" color="#FFB74D" fillcolor="#FFF3E0" shape=diamond style=filled]
+	N9 [label="Emulation for Obsolete Formats" color="#BA68C8" fillcolor="#F3E5F5" shape=rectangle style=filled]
+	N10 [label="Researchers Support" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
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+	N12 [label="Archival Advocacy" color="#BA68C8" fillcolor="#F3E5F5" shape=diamond style=filled]
+	N13 [label="Oral History Collection" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N14 [label="Finding Aid Creation" color="#FFB74D" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N15 [label="Digital Asset Management" color="#BA68C8" fillcolor="#F3E5F5" shape=rect style=filled]
+	S1 [label="" color="#BA68C8" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#BA68C8" fillcolor="#F3E5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Digital Forensics for Archives {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Digital Forensics for Archives"
+		nest0_0 [label="Database Management" color="#73C6BC" fillcolor="#D0EFEE" shape=diamond style=filled]
+		nest0_1 [label="Environmental Control" color="#FFB74D" fillcolor="#FFF3E0" shape=predefinedprocess style=filled]
+		nest0_2 [label="Subject Indexing for Archives" color="#BA68C8" fillcolor="#F3E5F5" shape=predefinedprocess style=filled]
+		nest0_3 [label="Ethical Use of Archival Materials" color="#73C6BC" fillcolor="#D0EFEE" shape=parallelogram style=filled]
+	}
+	subgraph cluster_Legal and Ethical Compliance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Legal and Ethical Compliance"
+		nest1_0 [label="Web Archiving" color="#73C6BC" fillcolor="#D0EFEE" shape=rect style=filled]
+		nest1_1 [label="Grant Writing for Archives" color="#73C6BC" fillcolor="#D0EFEE" shape=database style=filled]
+		nest1_2 [label="Long_Term Digital Preservation" color="#73C6BC" fillcolor="#D0EFEE" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFB74D" 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="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#73C6BC" penwidth=1.5 style=dashed label="develops" dir=forward]
+	nest0_0 -> nest0_1 [color="#FFB74D" 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="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N11 -> nest0_0 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	nest0_3 -> N12 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N14 -> nest1_0 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N6 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N8 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N0 -> N3 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest0_1 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N13 [color="#BA68C8" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_338.txt b/test/diagrams/scanned_medium/diagrams_338.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2c12bd132a4c9ae9b74f2e74c3e18d8fd0ee5aa6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_338.txt
@@ -0,0 +1,31 @@
+<Archival Advocacy, connectedTo, Oral History Collection>
+<Arrangement and Description, connectedTo, Exhibition Curation>
+<Arrangement and Description, connectedTo, Intellectual Property Rights Management>
+<Authority Control for Archival Names, connectedTo, User Interface for Digital Archives>
+<Collection Management Policy, connectedTo, Preservation Planning>
+<Collection Management Policy, connectedTo, Web Archiving>
+<Database Management, connectedTo, Environmental Control>
+<Emulation for Obsolete Formats, connectedTo, Researchers Support>
+<Environmental Control, connectedTo, Subject Indexing for Archives>
+<Ethical Use of Archival Materials, connectedTo, Archival Advocacy>
+<Exhibition Curation, connectedTo, Authority Control for Archival Names>
+<Finding Aid Creation, connectedTo, Web Archiving>
+<Finding Aid Creation, develops, Digital Asset Management>
+<Grant Writing for Archives, connectedTo, Long_Term Digital Preservation>
+<Intellectual Property Rights Management, connectedTo, Exhibition Curation>
+<Long_Term Digital Preservation, connectedTo, Security of Holdings>
+<Oral History Collection, connectedTo, Finding Aid Creation>
+<Outreach and Education, connectedTo, Archival Advocacy>
+<Outreach and Education, connectedTo, Database Management>
+<Preservation Planning, connectedTo, Archival Advocacy>
+<Preservation Planning, connectedTo, Emulation for Obsolete Formats>
+<Preservation Planning, connectedTo, Finding Aid Creation>
+<Records Management Integration, connectedTo, Arrangement and Description>
+<Records Management Integration, connectedTo, Exhibition Curation>
+<Researchers Support, connectedTo, Environmental Control>
+<Researchers Support, connectedTo, Outreach and Education>
+<Security of Holdings, connectedTo, Collection Management Policy>
+<Subject Indexing for Archives, connectedTo, Ethical Use of Archival Materials>
+<Subject Indexing for Archives, connectedTo, Oral History Collection>
+<User Interface for Digital Archives, connectedTo, Security of Holdings>
+<Web Archiving, connectedTo, Grant Writing for Archives>
diff --git a/test/diagrams/scanned_medium/diagrams_339.dot b/test/diagrams/scanned_medium/diagrams_339.dot
new file mode 100644
index 0000000000000000000000000000000000000000..58ece2cedb286b8b188ad1b25828c80a7102de30
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_339.dot
@@ -0,0 +1,92 @@
+digraph {
+	rankdir=RL
+	N0 [label="Educational Technology Integration" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N1 [label="Predictive Maintenance for Tech" color="#BCB88A" fillcolor="#F5F5DC" shape=inputoutput style=filled]
+	N2 [label="Conservation Technology" color="#9FA9E1" fillcolor="#D6D9F0" shape=database style=filled]
+	N3 [label="3D Scanning of Artifacts" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	N4 [label="Environmental Control Systems" color="#BCB88A" fillcolor="#F5F5DC" shape=diamond style=filled]
+	N5 [label="Augmented Reality Experiences" color="#4285F4" fillcolor="#D0E0F8" shape=parallelogram style=filled]
+	N6 [label="Collection Digitization" color="#4285F4" fillcolor="#D0E0F8" shape=diamond style=filled]
+	N7 [label="Ticketing and Visitor Systems" color="#4285F4" fillcolor="#D0E0F8" shape=vnode_shape style=filled]
+	N8 [label="Database Management" color="#BCB88A" fillcolor="#F5F5DC" shape=action style=filled]
+	N9 [label="Accessibility Technology for Visitors" color="#BCB88A" fillcolor="#F5F5DC" shape=diamond style=filled]
+	N10 [label="Crowdsourcing for Collections" color="#9FA9E1" fillcolor="#D6D9F0" shape=predefinedprocess style=filled]
+	N11 [label="Exhibition Lighting Design" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	N12 [label="Multisensory Exhibits" color="#BCB88A" fillcolor="#F5F5DC" shape=document style=filled]
+	N13 [label="Soundscape Design" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+	N14 [label="Wayfinding Systems" color="#4285F4" fillcolor="#D0E0F8" shape=database style=filled]
+	N15 [label="Member Management Systems" color="#4285F4" fillcolor="#D0E0F8" shape=preparation style=filled]
+	N16 [label="Online Shop Integration" color="#9FA9E1" fillcolor="#D6D9F0" shape=multipledocuments style=filled]
+	N17 [label="Digital Archiving" color="#4285F4" fillcolor="#D0E0F8" shape=hexagon style=filled]
+	S0 [label="" color="#4285F4" fillcolor="#D0E0F8" 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]
+	S2 [label="" color="#4285F4" fillcolor="#D0E0F8" 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="#BCB88A" fillcolor="#F5F5DC" 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_Visitor Analytics {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Visitor Analytics"
+		nest0_0 [label="RFID for Object Tracking" color="#9FA9E1" fillcolor="#D6D9F0" shape=parallelogram style=filled]
+		nest0_1 [label="Visitor Flow Analysis" color="#BCB88A" fillcolor="#F5F5DC" shape=rect style=filled]
+	}
+	subgraph cluster_Exhibition Design {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Exhibition Design"
+		nest1_0 [label="Digital Signage" color="#4285F4" fillcolor="#D0E0F8" shape=multipledocuments style=filled]
+		nest1_1 [label="Content Management Systems" color="#BCB88A" fillcolor="#F5F5DC" shape=action style=filled]
+		nest1_2 [label="Community Engagement Platforms" color="#BCB88A" fillcolor="#F5F5DC" shape=rectangle style=filled]
+		nest1_3 [label="Mobile App Development" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	}
+	N0 -> N1 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#4285F4" 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="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#9FA9E1" 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=solid dir=forward]
+	N8 -> N9 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid label="engages" dir=forward]
+	N11 -> N12 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N8 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#4285F4" penwidth=1.5 style=dashed label="informs" dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=solid label="notifies" dir=forward]
+	nest1_2 -> nest1_3 [color="#4285F4" penwidth=1.5 style=solid label="curates" dir=forward]
+	N1 -> nest1_0 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N17 [color="#4285F4" penwidth=1.5 style=dashed label="restores" dir=forward]
+	N8 -> S0 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N16 [color="#4285F4" penwidth=1.5 style=solid label="complies" dir=forward]
+	S0 -> N12 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S1 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N12 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N11 -> S2 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N15 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N14 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	S2 -> N17 [color="#000000" penwidth=1.5 style=solid label="secures" dir=forward]
+	S2 -> N13 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N12 -> M0 [color="#4285F4" penwidth=1.5 style=dashed dir=forward]
+	N11 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M0 -> N16 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#000000" penwidth=1.5 style=solid label="collects" dir=forward]
+	N1 -> M1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N11 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N13 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M2 [color="#BCB88A" penwidth=1.5 style=solid label="designs" dir=forward]
+	N10 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> M2 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_339.txt b/test/diagrams/scanned_medium/diagrams_339.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e0eb738c2168c20d6344d56368d53965c9d18f6a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_339.txt
@@ -0,0 +1,41 @@
+<3D Scanning of Artifacts, connectedTo, Environmental Control Systems>
+<3D Scanning of Artifacts, connectedTo, RFID for Object Tracking>
+<Accessibility Technology for Visitors, connectedTo, Crowdsourcing for Collections>
+<Augmented Reality Experiences, connectedTo, Collection Digitization>
+<Augmented Reality Experiences, designs, Online Shop Integration>
+<Collection Digitization, collects, Soundscape Design>
+<Collection Digitization, connectedTo, Ticketing and Visitor Systems>
+<Community Engagement Platforms, curates, Mobile App Development>
+<Conservation Technology, connectedTo, 3D Scanning of Artifacts>
+<Content Management Systems, notifies, Community Engagement Platforms>
+<Crowdsourcing for Collections, connectedTo, Online Shop Integration>
+<Crowdsourcing for Collections, engages, Exhibition Lighting Design>
+<Database Management, complies, Online Shop Integration>
+<Database Management, connectedTo, Accessibility Technology for Visitors>
+<Database Management, connectedTo, Exhibition Lighting Design>
+<Database Management, connectedTo, Member Management Systems>
+<Database Management, connectedTo, Multisensory Exhibits>
+<Digital Signage, informs, Content Management Systems>
+<Educational Technology Integration, connectedTo, Online Shop Integration>
+<Educational Technology Integration, connectedTo, Predictive Maintenance for Tech>
+<Environmental Control Systems, connectedTo, Augmented Reality Experiences>
+<Exhibition Lighting Design, connectedTo, Member Management Systems>
+<Exhibition Lighting Design, connectedTo, Multisensory Exhibits>
+<Exhibition Lighting Design, connectedTo, Online Shop Integration>
+<Exhibition Lighting Design, connectedTo, Soundscape Design>
+<Exhibition Lighting Design, connectedTo, Wayfinding Systems>
+<Exhibition Lighting Design, secures, Digital Archiving>
+<Member Management Systems, connectedTo, Online Shop Integration>
+<Mobile App Development, restores, Digital Archiving>
+<Multisensory Exhibits, connectedTo, Online Shop Integration>
+<Multisensory Exhibits, connectedTo, Soundscape Design>
+<Online Shop Integration, connectedTo, Digital Archiving>
+<Predictive Maintenance for Tech, connectedTo, Conservation Technology>
+<Predictive Maintenance for Tech, connectedTo, Digital Signage>
+<Predictive Maintenance for Tech, connectedTo, Soundscape Design>
+<RFID for Object Tracking, connectedTo, Visitor Flow Analysis>
+<Soundscape Design, connectedTo, Wayfinding Systems>
+<Ticketing and Visitor Systems, connectedTo, Database Management>
+<Ticketing and Visitor Systems, connectedTo, Online Shop Integration>
+<Visitor Flow Analysis, connectedTo, Database Management>
+<Wayfinding Systems, connectedTo, Member Management Systems>
diff --git a/test/diagrams/scanned_medium/diagrams_34.txt b/test/diagrams/scanned_medium/diagrams_34.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3e41e9b8d26f2369d00d48c4d3e7672259fffcd1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_34.txt
@@ -0,0 +1,8 @@
+<Applicant Tracking System Management, connectedTo, Interview Conducting>
+<Candidate Screening, connectedTo, Interview Conducting>
+<Candidate Screening, connectedTo, Psychometric Testing>
+<Interview Conducting, trains, Recruitment Analytics>
+<Psychometric Testing, communicates, Video Interviewing>
+<Recruitment Analytics, sources, Reference Checking>
+<Recruitment Marketing, innovates, Candidate Screening>
+<Video Interviewing, connectedTo, Applicant Tracking System Management>
diff --git a/test/diagrams/scanned_medium/diagrams_340.dot b/test/diagrams/scanned_medium/diagrams_340.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e161e991f68373acbc83b76ce033e7a8ca35dd42
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_340.dot
@@ -0,0 +1,80 @@
+digraph {
+	rankdir=BT
+	N0 [label="Data Privacy Compliance" color="#CDDC39" fillcolor="#E6EE9C" shape=action style=filled]
+	N1 [label="Environmental Compliance" color="#CDDC39" fillcolor="#E6EE9C" shape=inputoutput style=filled]
+	N2 [label="Incident Response Planning" color="#EAEFA5" fillcolor="#FDFCEB" shape=vnode_shape style=filled]
+	N3 [label="Code of Conduct Implementation" color="#EAEFA5" fillcolor="#FDFCEB" shape=database style=filled]
+	N4 [label="Risk Assessment" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N5 [label="Third_Party Due Diligence" color="#CDDC39" fillcolor="#E6EE9C" shape=action style=filled]
+	N6 [label="Legal Advisory" color="#CDDC39" fillcolor="#E6EE9C" shape=hexagon style=filled]
+	N7 [label="Internal Investigations" color="#66BB6A" fillcolor="#E8F5E9" shape=diamond style=filled]
+	N8 [label="Monitoring and Enforcement" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+	N9 [label="Audit Planning" color="#CDDC39" fillcolor="#E6EE9C" shape=diamond style=filled]
+	N10 [label="Transparent Communication" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N11 [label="Ethics Committee Formation" color="#66BB6A" fillcolor="#E8F5E9" shape=database style=filled]
+	N12 [label="Ethical Decision_Making Frameworks" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+	N13 [label="Information Security Compliance" color="#EAEFA5" fillcolor="#FDFCEB" shape=document style=filled]
+	N14 [label="Export Control Compliance" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N15 [label="Labor Law Compliance" color="#CDDC39" fillcolor="#E6EE9C" shape=parallelogram style=filled]
+	S0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Bias Mitigation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Bias Mitigation"
+		nest0_0 [label="Product Safety Compliance" color="#CDDC39" fillcolor="#E6EE9C" shape=vnode_shape style=filled]
+		nest0_1 [label="Financial Regulations Compliance" color="#EAEFA5" fillcolor="#FDFCEB" shape=rect style=filled]
+	}
+	subgraph cluster_Healthcare Compliance {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Healthcare Compliance"
+		nest1_0 [label="Ethical Leadership Development" color="#66BB6A" fillcolor="#E8F5E9" shape=action style=filled]
+		nest1_1 [label="Corporate Governance Standards" color="#EAEFA5" fillcolor="#FDFCEB" shape=parallelogram style=filled]
+		nest1_2 [label="Compliance Hotlines" color="#EAEFA5" fillcolor="#FDFCEB" shape=predefinedprocess style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#EAEFA5" penwidth=1.5 style=solid label="establishes" dir=forward]
+	N3 -> N4 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#66BB6A" penwidth=1.5 style=dashed label="monitors" dir=forward]
+	N9 -> N10 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#66BB6A" penwidth=1.5 style=solid label="protects" dir=forward]
+	N13 -> N14 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N9 -> nest0_0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N13 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#000000" penwidth=1.5 style=dashed label="certifies" dir=forward]
+	N9 -> nest1_0 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> N9 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S0 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N0 -> S1 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	S1 -> N2 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S2 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N15 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S2 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N6 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S2 -> N8 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N12 -> M0 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N10 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	M0 -> N15 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=solid label="guides" dir=forward]
+	N1 -> M1 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N6 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_340.txt b/test/diagrams/scanned_medium/diagrams_340.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7cb37f568d2d957da2ee36c6c82fa1439740e1de
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_340.txt
@@ -0,0 +1,35 @@
+<Audit Planning, connectedTo, Ethical Leadership Development>
+<Audit Planning, connectedTo, Product Safety Compliance>
+<Audit Planning, connectedTo, Transparent Communication>
+<Code of Conduct Implementation, connectedTo, Risk Assessment>
+<Compliance Hotlines, connectedTo, Audit Planning>
+<Corporate Governance Standards, certifies, Compliance Hotlines>
+<Data Privacy Compliance, connectedTo, Environmental Compliance>
+<Data Privacy Compliance, connectedTo, Ethics Committee Formation>
+<Data Privacy Compliance, connectedTo, Incident Response Planning>
+<Data Privacy Compliance, connectedTo, Information Security Compliance>
+<Data Privacy Compliance, connectedTo, Internal Investigations>
+<Data Privacy Compliance, connectedTo, Labor Law Compliance>
+<Environmental Compliance, connectedTo, Export Control Compliance>
+<Environmental Compliance, connectedTo, Incident Response Planning>
+<Environmental Compliance, connectedTo, Labor Law Compliance>
+<Environmental Compliance, connectedTo, Legal Advisory>
+<Environmental Compliance, connectedTo, Monitoring and Enforcement>
+<Ethical Decision_Making Frameworks, connectedTo, Labor Law Compliance>
+<Ethical Decision_Making Frameworks, protects, Information Security Compliance>
+<Ethical Leadership Development, connectedTo, Corporate Governance Standards>
+<Ethics Committee Formation, connectedTo, Ethical Decision_Making Frameworks>
+<Export Control Compliance, connectedTo, Labor Law Compliance>
+<Financial Regulations Compliance, connectedTo, Information Security Compliance>
+<Incident Response Planning, connectedTo, Labor Law Compliance>
+<Incident Response Planning, establishes, Code of Conduct Implementation>
+<Incident Response Planning, guides, Legal Advisory>
+<Information Security Compliance, connectedTo, Export Control Compliance>
+<Internal Investigations, connectedTo, Monitoring and Enforcement>
+<Legal Advisory, connectedTo, Internal Investigations>
+<Monitoring and Enforcement, monitors, Audit Planning>
+<Product Safety Compliance, connectedTo, Financial Regulations Compliance>
+<Risk Assessment, connectedTo, Third_Party Due Diligence>
+<Third_Party Due Diligence, connectedTo, Legal Advisory>
+<Transparent Communication, connectedTo, Ethics Committee Formation>
+<Transparent Communication, connectedTo, Labor Law Compliance>
diff --git a/test/diagrams/scanned_medium/diagrams_341.dot b/test/diagrams/scanned_medium/diagrams_341.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d3c6ef4664134eb1240ce28a2efca15b7e4c72fc
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_341.dot
@@ -0,0 +1,81 @@
+digraph {
+	rankdir=BT
+	N0 [label="Vehicle Forensics" color="#BDBDBD" fillcolor="#F5F5F5" shape=inputoutput style=filled]
+	N1 [label="Forensic Accounting" color="#FFD54F" fillcolor="#FFF8E1" shape=parallelogram style=filled]
+	N2 [label="Legal Standards Compliance" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+	N3 [label="Forensic Photography" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+	N4 [label="Evidence Preservation" color="#FFD54F" fillcolor="#FFF8E1" shape=diamond style=filled]
+	N5 [label="Evidence Collection" color="#FFC085" fillcolor="#FFDAB9" shape=predefinedprocess style=filled]
+	N6 [label="Forensic Botany" color="#FFC085" fillcolor="#FFDAB9" shape=parallelogram style=filled]
+	N7 [label="Cold Case Review" color="#FFD54F" fillcolor="#FFF8E1" shape=rect style=filled]
+	N8 [label="Toolmark Analysis" color="#FFC085" fillcolor="#FFDAB9" shape=parallelogram style=filled]
+	N9 [label="Arson Investigation" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+	N10 [label="Bloodstain Pattern Analysis" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+	N11 [label="Chain of Custody Management" color="#FFC085" fillcolor="#FFDAB9" shape=database style=filled]
+	N12 [label="Toxicology Testing" color="#FFC085" fillcolor="#FFDAB9" shape=diamond style=filled]
+	N13 [label="Laboratory Analysis" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+	N14 [label="Digital Forensics" color="#BDBDBD" fillcolor="#F5F5F5" shape=action style=filled]
+	N15 [label="Voice Recognition" color="#FFD54F" fillcolor="#FFF8E1" shape=hexagon style=filled]
+	N16 [label="Cyber Crime Investigation" color="#FFD54F" fillcolor="#FFF8E1" shape=diamond style=filled]
+	N17 [label="Forensic Anthropology" color="#FFC085" fillcolor="#FFDAB9" shape=database style=filled]
+	N18 [label="Ballistics Analysis" color="#FFC085" fillcolor="#FFDAB9" shape=database style=filled]
+	N19 [label="Crime Scene Investigation" color="#FFC085" fillcolor="#FFDAB9" shape=rect style=filled]
+	S1 [label="" color="#FFD54F" fillcolor="#FFF8E1" 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="#FFD54F" fillcolor="#FFF8E1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#BDBDBD" fillcolor="#F5F5F5" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Forensic Psychology {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Forensic Psychology"
+		nest0_0 [label="Document Examination" color="#BDBDBD" fillcolor="#F5F5F5" shape=hexagon style=filled]
+		nest0_1 [label="Forensic Interviewing" color="#BDBDBD" fillcolor="#F5F5F5" shape=database style=filled]
+	}
+	subgraph cluster_Trace Evidence Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Trace Evidence Analysis"
+		nest1_0 [label="Facial Recognition" color="#BDBDBD" fillcolor="#F5F5F5" shape=document style=filled]
+		nest1_1 [label="Fingerprint Analysis" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+		nest1_2 [label="Forensic Pathology" color="#BDBDBD" fillcolor="#F5F5F5" shape=rectangle 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="#FFC085" 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=solid dir=forward]
+	N5 -> N6 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#FFC085" penwidth=1.5 style=solid label="processes" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N16 -> N17 [color="#000000" penwidth=1.5 style=solid label="photographs" dir=forward]
+	N17 -> N18 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N18 -> N19 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N15 -> nest0_0 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N17 [color="#BDBDBD" 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="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest1_0 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> N6 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S2 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	S2 -> N15 [color="#FFC085" 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=dashed dir=forward]
+	N6 -> M0 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N8 -> M1 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#BDBDBD" penwidth=1.5 style=solid 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_medium/diagrams_341.txt b/test/diagrams/scanned_medium/diagrams_341.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8746686e0305a46faebb5c1970c140dc0fbea961
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_341.txt
@@ -0,0 +1,34 @@
+<Arson Investigation, processes, Bloodstain Pattern Analysis>
+<Ballistics Analysis, connectedTo, Crime Scene Investigation>
+<Bloodstain Pattern Analysis, connectedTo, Chain of Custody Management>
+<Chain of Custody Management, connectedTo, Toxicology Testing>
+<Cold Case Review, connectedTo, Arson Investigation>
+<Cold Case Review, connectedTo, Laboratory Analysis>
+<Cold Case Review, connectedTo, Toolmark Analysis>
+<Cyber Crime Investigation, photographs, Forensic Anthropology>
+<Digital Forensics, connectedTo, Voice Recognition>
+<Document Examination, connectedTo, Forensic Interviewing>
+<Evidence Collection, connectedTo, Forensic Botany>
+<Evidence Preservation, connectedTo, Arson Investigation>
+<Evidence Preservation, connectedTo, Evidence Collection>
+<Evidence Preservation, connectedTo, Toxicology Testing>
+<Evidence Preservation, connectedTo, Voice Recognition>
+<Facial Recognition, connectedTo, Fingerprint Analysis>
+<Fingerprint Analysis, connectedTo, Forensic Pathology>
+<Forensic Accounting, connectedTo, Legal Standards Compliance>
+<Forensic Anthropology, connectedTo, Ballistics Analysis>
+<Forensic Botany, connectedTo, Arson Investigation>
+<Forensic Botany, connectedTo, Cold Case Review>
+<Forensic Interviewing, connectedTo, Forensic Anthropology>
+<Forensic Pathology, connectedTo, Forensic Botany>
+<Forensic Photography, connectedTo, Evidence Preservation>
+<Forensic Photography, connectedTo, Facial Recognition>
+<Forensic Photography, connectedTo, Laboratory Analysis>
+<Laboratory Analysis, connectedTo, Digital Forensics>
+<Legal Standards Compliance, connectedTo, Forensic Photography>
+<Toolmark Analysis, connectedTo, Arson Investigation>
+<Toolmark Analysis, connectedTo, Laboratory Analysis>
+<Toxicology Testing, connectedTo, Laboratory Analysis>
+<Vehicle Forensics, connectedTo, Forensic Accounting>
+<Voice Recognition, connectedTo, Cyber Crime Investigation>
+<Voice Recognition, connectedTo, Document Examination>
diff --git a/test/diagrams/scanned_medium/diagrams_342.dot b/test/diagrams/scanned_medium/diagrams_342.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6b4eb041b530688deb628becc98e1a7a90b2ce85
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_342.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=TB
+	N0 [label="Chemical Biological Radiological Nuclear Defense" color="#388E3C" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	N1 [label="Hostage Negotiation" color="#388E3C" fillcolor="#C8E6C9" shape=action style=filled]
+	N2 [label="Legislation and Policy Development" color="#B0C5CD" fillcolor="#DFE7EB" shape=inputoutput style=filled]
+	N3 [label="International Cooperation" color="#90A4AE" fillcolor="#ECEFF1" shape=predefinedprocess style=filled]
+	N4 [label="Biometric Screening" color="#388E3C" fillcolor="#C8E6C9" shape=preparation style=filled]
+	N5 [label="Critical Infrastructure Protection" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	N6 [label="Military Counterterrorism" color="#B0C5CD" fillcolor="#DFE7EB" shape=rect style=filled]
+	N7 [label="Target Hardening" color="#B0C5CD" fillcolor="#DFE7EB" shape=rectangle style=filled]
+	N8 [label="Bomb Disposal" color="#B0C5CD" fillcolor="#DFE7EB" shape=multipledocuments style=filled]
+	N9 [label="Training Exercises" color="#388E3C" fillcolor="#C8E6C9" shape=action style=filled]
+	N10 [label="Forensic Investigation of Attacks" color="#B0C5CD" fillcolor="#DFE7EB" shape=ellipse style=filled]
+	N11 [label="Crisis Response Planning" color="#90A4AE" fillcolor="#ECEFF1" shape=vnode_shape style=filled]
+	N12 [label="Port Security" color="#B0C5CD" fillcolor="#DFE7EB" shape=rect style=filled]
+	N13 [label="Border Security" color="#388E3C" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N14 [label="Law Enforcement Operations" color="#388E3C" fillcolor="#C8E6C9" shape=preparation style=filled]
+	N15 [label="Threat Assessment" color="#388E3C" fillcolor="#C8E6C9" shape=parallelogram style=filled]
+	N16 [label="Vulnerability Assessment" color="#B0C5CD" fillcolor="#DFE7EB" shape=preparation style=filled]
+	N17 [label="Post_Incident Recovery" color="#90A4AE" fillcolor="#ECEFF1" shape=multipledocuments style=filled]
+	N18 [label="Psychological Operations" color="#388E3C" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	N19 [label="Fusion Center Operations" color="#388E3C" fillcolor="#C8E6C9" shape=multipledocuments style=filled]
+	S0 [label="" color="#388E3C" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#388E3C" fillcolor="#C8E6C9" 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]
+	M2 [label="" color="#B0C5CD" fillcolor="#DFE7EB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Counter_Propaganda {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Counter_Propaganda"
+		nest0_0 [label="Intelligence Analysis" color="#90A4AE" fillcolor="#ECEFF1" shape=action style=filled]
+		nest0_1 [label="Behavioral Threat Assessment" color="#90A4AE" fillcolor="#ECEFF1" shape=ellipse style=filled]
+	}
+	subgraph cluster_Risk Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Risk Analysis"
+		nest1_0 [label="Emergency Preparedness" color="#B0C5CD" fillcolor="#DFE7EB" shape=predefinedprocess style=filled]
+		nest1_1 [label="Radicalization Prevention" color="#90A4AE" fillcolor="#ECEFF1" shape=rect style=filled]
+		nest1_2 [label="Information Sharing" color="#B0C5CD" fillcolor="#DFE7EB" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#B0C5CD" 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=dashed dir=forward]
+	N12 -> N13 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N17 -> N18 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N18 -> N19 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N17 -> nest0_0 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N19 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N18 -> nest1_0 [color="#B0C5CD" penwidth=1.5 style=dashed label="de_radicalizes" dir=forward]
+	nest1_2 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N13 -> S0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N17 [color="#90A4AE" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	S0 -> N18 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N4 -> S1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S1 -> N10 [color="#90A4AE" penwidth=1.5 style=dashed label="drills" dir=forward]
+	S1 -> N16 [color="#000000" penwidth=1.5 style=dashed label="exercises_conducts" dir=forward]
+	S1 -> N7 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N13 -> M1 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N16 -> M1 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N18 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> M2 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N8 -> M2 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N6 -> M2 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N13 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_342.txt b/test/diagrams/scanned_medium/diagrams_342.txt
new file mode 100644
index 0000000000000000000000000000000000000000..bba0ab3ce19324a5472d96011555f047df738d39
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_342.txt
@@ -0,0 +1,37 @@
+<Behavioral Threat Assessment, connectedTo, Fusion Center Operations>
+<Behavioral Threat Assessment, partOf, Behavioral Threat Assessment>
+<Biometric Screening, connectedTo, Critical Infrastructure Protection>
+<Biometric Screening, connectedTo, Target Hardening>
+<Biometric Screening, drills, Forensic Investigation of Attacks>
+<Biometric Screening, exercises_conducts, Vulnerability Assessment>
+<Bomb Disposal, connectedTo, Border Security>
+<Bomb Disposal, connectedTo, Training Exercises>
+<Border Security, analyzes, Post_Incident Recovery>
+<Border Security, connectedTo, Law Enforcement Operations>
+<Border Security, connectedTo, Psychological Operations>
+<Chemical Biological Radiological Nuclear Defense, connectedTo, Hostage Negotiation>
+<Crisis Response Planning, connectedTo, Port Security>
+<Critical Infrastructure Protection, connectedTo, Military Counterterrorism>
+<Emergency Preparedness, connectedTo, Radicalization Prevention>
+<Forensic Investigation of Attacks, connectedTo, Crisis Response Planning>
+<Hostage Negotiation, connectedTo, Legislation and Policy Development>
+<Information Sharing, connectedTo, Threat Assessment>
+<Intelligence Analysis, connectedTo, Behavioral Threat Assessment>
+<Intelligence Analysis, partOf, Intelligence Analysis>
+<International Cooperation, connectedTo, Biometric Screening>
+<Law Enforcement Operations, connectedTo, Threat Assessment>
+<Legislation and Policy Development, connectedTo, International Cooperation>
+<Military Counterterrorism, connectedTo, Border Security>
+<Military Counterterrorism, connectedTo, Target Hardening>
+<Port Security, connectedTo, Border Security>
+<Post_Incident Recovery, connectedTo, Intelligence Analysis>
+<Post_Incident Recovery, connectedTo, Psychological Operations>
+<Psychological Operations, connectedTo, Fusion Center Operations>
+<Psychological Operations, de_radicalizes, Emergency Preparedness>
+<Radicalization Prevention, connectedTo, Information Sharing>
+<Target Hardening, connectedTo, Bomb Disposal>
+<Threat Assessment, connectedTo, Vulnerability Assessment>
+<Training Exercises, connectedTo, Border Security>
+<Training Exercises, connectedTo, Forensic Investigation of Attacks>
+<Vulnerability Assessment, connectedTo, Post_Incident Recovery>
+<Vulnerability Assessment, connectedTo, Psychological Operations>
diff --git a/test/diagrams/scanned_medium/diagrams_343.dot b/test/diagrams/scanned_medium/diagrams_343.dot
new file mode 100644
index 0000000000000000000000000000000000000000..894c20c67e0b7605632ef68c87d2d5def0215a2d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_343.dot
@@ -0,0 +1,75 @@
+digraph {
+	rankdir=BT
+	N0 [label="Border Surveillance" color="#FFD54F" fillcolor="#FFF8E1" shape=rect style=filled]
+	N1 [label="Satellite Imaging" color="#388E3C" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N2 [label="Cyber Surveillance" color="#FFC085" fillcolor="#FFDAB9" shape=predefinedprocess style=filled]
+	N3 [label="Predictive Policing" color="#FFC085" fillcolor="#FFDAB9" shape=inputoutput style=filled]
+	N4 [label="Perimeter Security" color="#FFD54F" fillcolor="#FFF8E1" shape=vnode_shape style=filled]
+	N5 [label="Remote Sensing" color="#FFC085" fillcolor="#FFDAB9" shape=multipledocuments style=filled]
+	N6 [label="Video Analytics" color="#388E3C" fillcolor="#C8E6C9" shape=multipledocuments style=filled]
+	N7 [label="Environmental Monitoring" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	N8 [label="Social Media Monitoring" color="#388E3C" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N9 [label="Audio Surveillance" color="#388E3C" fillcolor="#C8E6C9" shape=database style=filled]
+	N10 [label="Public Space Monitoring" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N11 [label="Traffic Surveillance" color="#FFC085" fillcolor="#FFDAB9" shape=ellipse style=filled]
+	N12 [label="Network Monitoring" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+	N13 [label="Asset Tracking" color="#FFC085" fillcolor="#FFDAB9" shape=multipledocuments style=filled]
+	N14 [label="Ethical Guidelines" color="#388E3C" fillcolor="#C8E6C9" shape=action style=filled]
+	N15 [label="Data Collection" color="#FFD54F" fillcolor="#FFF8E1" shape=action style=filled]
+	S0 [label="" color="#FFC085" fillcolor="#FFDAB9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#388E3C" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#FFC085" fillcolor="#FFDAB9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Biometric Data Analysis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Biometric Data Analysis"
+		nest0_0 [label="Privacy Concerns Mitigation" color="#FFC085" fillcolor="#FFDAB9" shape=box style=filled]
+		nest0_1 [label="Internet Traffic Monitoring" color="#FFD54F" fillcolor="#FFF8E1" shape=ellipse style=filled]
+	}
+	subgraph cluster_Automated Threat Detection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Automated Threat Detection"
+		nest1_0 [label="Access Control Systems" color="#FFD54F" fillcolor="#FFF8E1" shape=predefinedprocess style=filled]
+		nest1_1 [label="Mobile Phone Interception" color="#FFC085" fillcolor="#FFDAB9" shape=inputoutput style=filled]
+		nest1_2 [label="Data Storage and Retention" color="#388E3C" fillcolor="#C8E6C9" shape=ellipse style=filled]
+		nest1_3 [label="GPS Tracking" color="#FFD54F" fillcolor="#FFF8E1" shape=parallelogram style=filled]
+	}
+	N0 -> N1 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#000000" penwidth=1.5 style=solid label="detects" dir=forward]
+	N13 -> N14 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N10 -> nest0_0 [color="#FFC085" penwidth=1.5 style=solid label="privacy_protects" dir=forward]
+	nest0_1 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest1_0 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N13 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N10 -> S0 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N14 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N4 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N13 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> M0 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N15 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_343.txt b/test/diagrams/scanned_medium/diagrams_343.txt
new file mode 100644
index 0000000000000000000000000000000000000000..090bd47e1dbb17816acab6d4404c037e312fd583
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_343.txt
@@ -0,0 +1,33 @@
+<Access Control Systems, connectedTo, Mobile Phone Interception>
+<Asset Tracking, connectedTo, Data Collection>
+<Asset Tracking, connectedTo, Ethical Guidelines>
+<Audio Surveillance, connectedTo, Access Control Systems>
+<Audio Surveillance, connectedTo, Public Space Monitoring>
+<Border Surveillance, connectedTo, Satellite Imaging>
+<Cyber Surveillance, connectedTo, Predictive Policing>
+<Data Storage and Retention, connectedTo, GPS Tracking>
+<Environmental Monitoring, connectedTo, Data Collection>
+<Environmental Monitoring, connectedTo, Social Media Monitoring>
+<Ethical Guidelines, connectedTo, Data Collection>
+<GPS Tracking, connectedTo, Asset Tracking>
+<Internet Traffic Monitoring, connectedTo, Remote Sensing>
+<Mobile Phone Interception, connectedTo, Data Storage and Retention>
+<Network Monitoring, detects, Asset Tracking>
+<Perimeter Security, connectedTo, Asset Tracking>
+<Perimeter Security, connectedTo, Audio Surveillance>
+<Perimeter Security, connectedTo, Data Collection>
+<Perimeter Security, connectedTo, Remote Sensing>
+<Predictive Policing, connectedTo, Perimeter Security>
+<Privacy Concerns Mitigation, connectedTo, Internet Traffic Monitoring>
+<Public Space Monitoring, connectedTo, Asset Tracking>
+<Public Space Monitoring, connectedTo, Data Collection>
+<Public Space Monitoring, connectedTo, Ethical Guidelines>
+<Public Space Monitoring, connectedTo, Network Monitoring>
+<Public Space Monitoring, connectedTo, Traffic Surveillance>
+<Public Space Monitoring, privacy_protects, Privacy Concerns Mitigation>
+<Remote Sensing, connectedTo, Video Analytics>
+<Satellite Imaging, connectedTo, Cyber Surveillance>
+<Satellite Imaging, connectedTo, Data Collection>
+<Social Media Monitoring, connectedTo, Audio Surveillance>
+<Traffic Surveillance, connectedTo, Network Monitoring>
+<Video Analytics, connectedTo, Environmental Monitoring>
diff --git a/test/diagrams/scanned_medium/diagrams_344.dot b/test/diagrams/scanned_medium/diagrams_344.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d76161453e2bdbede4ca73977ac2c47b840fedbf
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_344.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=TB
+	N0 [label="Crime Prevention Through Education" color="#FBC02D" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+	N1 [label="Early Intervention Programs" color="#BCB88A" fillcolor="#F5F5DC" shape=preparation style=filled]
+	N2 [label="Restorative Justice" color="#BCB88A" fillcolor="#F5F5DC" shape=diamond style=filled]
+	N3 [label="Gang Intervention" color="#FBC02D" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N4 [label="Policy Development for Prevention" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N5 [label="Technology for Prevention" color="#FBC02D" fillcolor="#FFFDE7" shape=action style=filled]
+	N6 [label="Burglary Prevention" color="#AF56A6" fillcolor="#DDCEDD" shape=rect style=filled]
+	N7 [label="Identity Theft Prevention" color="#FBC02D" fillcolor="#FFFDE7" shape=document style=filled]
+	N8 [label="Neighborhood Watch Programs" color="#BCB88A" fillcolor="#F5F5DC" shape=action style=filled]
+	N9 [label="Reintegration Programs" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N10 [label="School Safety Programs" color="#FBC02D" fillcolor="#FFFDE7" shape=action style=filled]
+	N11 [label="Drug Prevention Initiatives" color="#AF56A6" fillcolor="#DDCEDD" shape=predefinedprocess style=filled]
+	N12 [label="Community Policing" color="#BCB88A" fillcolor="#F5F5DC" shape=parallelogram style=filled]
+	N13 [label="Patrol Operations" color="#AF56A6" fillcolor="#DDCEDD" shape=box style=filled]
+	N14 [label="Conflict Resolution Training" color="#FBC02D" fillcolor="#FFFDE7" shape=parallelogram style=filled]
+	N15 [label="Crisis Intervention" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N16 [label="Deterrence Strategies" color="#FBC02D" fillcolor="#FFFDE7" shape=database style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" 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="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#FBC02D" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Hotspot Policing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Hotspot Policing"
+		nest0_0 [label="Law Enforcement Training" color="#AF56A6" fillcolor="#DDCEDD" shape=rectangle style=filled]
+		nest0_1 [label="Crime Data Analysis" color="#FBC02D" fillcolor="#FFFDE7" shape=diamond style=filled]
+		nest0_2 [label="Situational Crime Prevention" color="#BCB88A" fillcolor="#F5F5DC" shape=database style=filled]
+	}
+	subgraph cluster_Gun Violence Prevention {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Gun Violence Prevention"
+		nest1_0 [label="CCTV Installation" color="#FBC02D" fillcolor="#FFFDE7" shape=rectangle style=filled]
+		nest1_1 [label="Environmental Design" color="#AF56A6" fillcolor="#DDCEDD" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#AF56A6" 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=solid dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest0_0 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N5 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N12 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N12 [color="#FBC02D" penwidth=1.5 style=solid dir=forward]
+	N9 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N13 [color="#BCB88A" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N16 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	N10 -> M0 [color="#AF56A6" penwidth=1.5 style=solid dir=forward]
+	M0 -> N15 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M2 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	M2 -> N15 [color="#AF56A6" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_344.txt b/test/diagrams/scanned_medium/diagrams_344.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9c6fb54085fcf555bd3b2a2ad34a8160555a08c7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_344.txt
@@ -0,0 +1,31 @@
+<Burglary Prevention, connectedTo, Identity Theft Prevention>
+<CCTV Installation, connectedTo, Environmental Design>
+<Community Policing, connectedTo, CCTV Installation>
+<Community Policing, connectedTo, Law Enforcement Training>
+<Community Policing, connectedTo, Patrol Operations>
+<Conflict Resolution Training, connectedTo, Crisis Intervention>
+<Crime Data Analysis, connectedTo, Situational Crime Prevention>
+<Crime Prevention Through Education, connectedTo, Early Intervention Programs>
+<Crime Prevention Through Education, connectedTo, Gang Intervention>
+<Crisis Intervention, connectedTo, Deterrence Strategies>
+<Drug Prevention Initiatives, connectedTo, Community Policing>
+<Early Intervention Programs, connectedTo, Gang Intervention>
+<Early Intervention Programs, connectedTo, Restorative Justice>
+<Environmental Design, connectedTo, Community Policing>
+<Gang Intervention, connectedTo, Policy Development for Prevention>
+<Identity Theft Prevention, connectedTo, Crisis Intervention>
+<Identity Theft Prevention, connectedTo, Neighborhood Watch Programs>
+<Law Enforcement Training, connectedTo, Crime Data Analysis>
+<Neighborhood Watch Programs, connectedTo, Reintegration Programs>
+<Patrol Operations, connectedTo, Conflict Resolution Training>
+<Policy Development for Prevention, connectedTo, Crisis Intervention>
+<Policy Development for Prevention, connectedTo, Technology for Prevention>
+<Reintegration Programs, connectedTo, Deterrence Strategies>
+<Reintegration Programs, connectedTo, Patrol Operations>
+<Reintegration Programs, connectedTo, School Safety Programs>
+<Restorative Justice, connectedTo, Gang Intervention>
+<School Safety Programs, connectedTo, Crisis Intervention>
+<School Safety Programs, connectedTo, Drug Prevention Initiatives>
+<Situational Crime Prevention, connectedTo, Technology for Prevention>
+<Technology for Prevention, connectedTo, Burglary Prevention>
+<Technology for Prevention, connectedTo, Crisis Intervention>
diff --git a/test/diagrams/scanned_medium/diagrams_345.dot b/test/diagrams/scanned_medium/diagrams_345.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f739c4e8861b035afb431c9316ae66d39c49f018
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_345.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=RL
+	N0 [label="Genetic Diversity Analysis" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N1 [label="Invasive Species Control" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	N2 [label="Human_Wildlife Conflict Mitigation" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	N3 [label="Freshwater Conservation" color="#FF8A65" fillcolor="#FBE9E7" shape=diamond style=filled]
+	N4 [label="Research and Development in Conservation" color="#FF8A65" fillcolor="#FBE9E7" shape=predefinedprocess style=filled]
+	N5 [label="Reintroduction Programs" color="#4CAF50" fillcolor="#C8E6C9" shape=preparation style=filled]
+	N6 [label="Rewilding Initiatives" color="#FF8A65" fillcolor="#FBE9E7" shape=preparation style=filled]
+	N7 [label="Anti_Poaching Operations" color="#4CAF50" fillcolor="#C8E6C9" shape=rect style=filled]
+	N8 [label="Policy Advocacy" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N9 [label="Translocation of Species" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	N10 [label="Conservation Education" color="#4CAF50" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N11 [label="Data Management for Conservation" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N12 [label="Satellite Tracking of Animals" color="#A2D0FF" fillcolor="#E8F0FF" shape=document style=filled]
+	N13 [label="Carbon Sequestration in Habitats" color="#4CAF50" fillcolor="#C8E6C9" shape=rect style=filled]
+	N14 [label="Pollution Impact Assessment" color="#FF8A65" fillcolor="#FBE9E7" shape=multipledocuments style=filled]
+	N15 [label="Community Engagement" color="#FF8A65" fillcolor="#FBE9E7" shape=database style=filled]
+	S0 [label="" color="#FF8A65" fillcolor="#FBE9E7" 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="#FF8A65" fillcolor="#FBE9E7" 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_GIS Mapping for Habitats {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="GIS Mapping for Habitats"
+		nest0_0 [label="Conservation Genetics" color="#A2D0FF" fillcolor="#E8F0FF" shape=vnode_shape style=filled]
+		nest0_1 [label="Sustainable Resource Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=multipledocuments style=filled]
+		nest0_2 [label="Forestry Practices for Conservation" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	}
+	subgraph cluster_Ecosystem Services Valuation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Ecosystem Services Valuation"
+		nest1_0 [label="Habitat Restoration" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+		nest1_1 [label="Population Dynamics Study" color="#A2D0FF" fillcolor="#E8F0FF" shape=document style=filled]
+		nest1_2 [label="Grassland Conservation" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+		nest1_3 [label="Species Monitoring" color="#FF8A65" fillcolor="#FBE9E7" shape=rect style=filled]
+	}
+	N0 -> N1 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> N12 [color="#FF8A65" 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="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	nest1_2 -> nest1_3 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N14 -> nest1_0 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N8 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N9 -> S0 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N14 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N11 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N12 -> S1 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	S1 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N15 [color="#FF8A65" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#4CAF50" penwidth=1.5 style=dashed label="restores" dir=forward]
+	N3 -> M1 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	M1 -> N5 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_345.txt b/test/diagrams/scanned_medium/diagrams_345.txt
new file mode 100644
index 0000000000000000000000000000000000000000..80d7fb2635792a1da2473126ba720226c486ea69
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_345.txt
@@ -0,0 +1,38 @@
+<Anti_Poaching Operations, connectedTo, Policy Advocacy>
+<Anti_Poaching Operations, connectedTo, Translocation of Species>
+<Carbon Sequestration in Habitats, connectedTo, Pollution Impact Assessment>
+<Conservation Education, connectedTo, Data Management for Conservation>
+<Conservation Genetics, connectedTo, Sustainable Resource Management>
+<Data Management for Conservation, connectedTo, Satellite Tracking of Animals>
+<Forestry Practices for Conservation, connectedTo, Satellite Tracking of Animals>
+<Freshwater Conservation, connectedTo, Reintroduction Programs>
+<Freshwater Conservation, connectedTo, Research and Development in Conservation>
+<Genetic Diversity Analysis, connectedTo, Invasive Species Control>
+<Genetic Diversity Analysis, restores, Reintroduction Programs>
+<Grassland Conservation, connectedTo, Species Monitoring>
+<Habitat Restoration, connectedTo, Population Dynamics Study>
+<Human_Wildlife Conflict Mitigation, connectedTo, Freshwater Conservation>
+<Human_Wildlife Conflict Mitigation, connectedTo, Reintroduction Programs>
+<Invasive Species Control, connectedTo, Human_Wildlife Conflict Mitigation>
+<Invasive Species Control, connectedTo, Reintroduction Programs>
+<Invasive Species Control, connectedTo, Translocation of Species>
+<Policy Advocacy, connectedTo, Translocation of Species>
+<Pollution Impact Assessment, connectedTo, Community Engagement>
+<Pollution Impact Assessment, connectedTo, Habitat Restoration>
+<Population Dynamics Study, connectedTo, Grassland Conservation>
+<Reintroduction Programs, connectedTo, Rewilding Initiatives>
+<Reintroduction Programs, connectedTo, Translocation of Species>
+<Research and Development in Conservation, connectedTo, Reintroduction Programs>
+<Research and Development in Conservation, connectedTo, Translocation of Species>
+<Rewilding Initiatives, connectedTo, Anti_Poaching Operations>
+<Satellite Tracking of Animals, connectedTo, Carbon Sequestration in Habitats>
+<Satellite Tracking of Animals, connectedTo, Community Engagement>
+<Satellite Tracking of Animals, connectedTo, Pollution Impact Assessment>
+<Species Monitoring, connectedTo, Policy Advocacy>
+<Sustainable Resource Management, connectedTo, Forestry Practices for Conservation>
+<Translocation of Species, connectedTo, Carbon Sequestration in Habitats>
+<Translocation of Species, connectedTo, Conservation Education>
+<Translocation of Species, connectedTo, Conservation Genetics>
+<Translocation of Species, connectedTo, Data Management for Conservation>
+<Translocation of Species, connectedTo, Pollution Impact Assessment>
+<Translocation of Species, connectedTo, Satellite Tracking of Animals>
diff --git a/test/diagrams/scanned_medium/diagrams_346.dot b/test/diagrams/scanned_medium/diagrams_346.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b932c749bce65b01f90e187dbfdb25a65c1d6d45
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_346.dot
@@ -0,0 +1,78 @@
+digraph {
+	rankdir=LR
+	N0 [label="Ocean Current Measurement" color="#FFF176" fillcolor="#FFFDE7" shape=diamond style=filled]
+	N1 [label="Ocean Acidification Research" color="#FFF176" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N2 [label="Chemical Oceanography" color="#E91E63" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N3 [label="Polar Oceanography" color="#FFC107" fillcolor="#FFECB3" shape=multipledocuments style=filled]
+	N4 [label="ROV or AUV Operations" color="#E91E63" fillcolor="#FCE4EC" shape=ellipse style=filled]
+	N5 [label="Tsunami Prediction" color="#FFC107" fillcolor="#FFECB3" shape=rect style=filled]
+	N6 [label="Marine Protected Area Planning" color="#E91E63" fillcolor="#FCE4EC" shape=preparation style=filled]
+	N7 [label="Coastal Erosion Research" color="#E91E63" fillcolor="#FCE4EC" shape=database style=filled]
+	N8 [label="Sea Level Monitoring" color="#FFF176" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N9 [label="Fisheries Management" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N10 [label="Plastic Pollution Research" color="#FFF176" fillcolor="#FFFDE7" shape=predefinedprocess style=filled]
+	N11 [label="Ocean Temperature Sensing" color="#E91E63" fillcolor="#FCE4EC" shape=predefinedprocess style=filled]
+	N12 [label="Underwater Acoustics" color="#FFC107" fillcolor="#FFECB3" shape=predefinedprocess style=filled]
+	N13 [label="Coastal Zone Management" color="#E91E63" fillcolor="#FCE4EC" shape=inputoutput style=filled]
+	N14 [label="Ocean Carbon Cycle" color="#FFF176" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N15 [label="Seabed Resource Exploration" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	S0 [label="" color="#FFC107" fillcolor="#FFECB3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFF176" fillcolor="#FFFDE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M0 [label="" color="#E91E63" fillcolor="#FCE4EC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#FFC107" fillcolor="#FFECB3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Marine Life Observation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Marine Life Observation"
+		nest0_0 [label="Acoustic Oceanography" color="#E91E63" fillcolor="#FCE4EC" shape=preparation style=filled]
+		nest0_1 [label="Coral Reef Monitoring" color="#FFC107" fillcolor="#FFECB3" shape=database style=filled]
+		nest0_2 [label="Marine Ecosystem Health" color="#E91E63" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+		nest0_3 [label="Satellite Oceanography" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	}
+	subgraph cluster_Marine Remote Sensing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Marine Remote Sensing"
+		nest1_0 [label="Marine Hazards Assessment" color="#E91E63" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+		nest1_1 [label="Ocean Data Archiving" color="#E91E63" fillcolor="#FCE4EC" shape=inputoutput 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="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FFC107" 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="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFF176" penwidth=1.5 style=solid label="interprets" 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="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#FFF176" penwidth=1.5 style=solid label="ecosystems" dir=forward]
+	nest0_0 -> nest0_1 [color="#E91E63" penwidth=1.5 style=dashed label="predicts" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#E91E63" penwidth=1.5 style=dashed label="visualizes_data" dir=forward]
+	N8 -> nest0_0 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N6 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> S0 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N4 -> S1 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#FFC107" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N8 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_346.txt b/test/diagrams/scanned_medium/diagrams_346.txt
new file mode 100644
index 0000000000000000000000000000000000000000..52c23307d7d91a9832117f7ff670792904d53fe3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_346.txt
@@ -0,0 +1,34 @@
+<Acoustic Oceanography, predicts, Coral Reef Monitoring>
+<Chemical Oceanography, connectedTo, Polar Oceanography>
+<Coastal Erosion Research, connectedTo, Sea Level Monitoring>
+<Coastal Zone Management, connectedTo, Ocean Carbon Cycle>
+<Coral Reef Monitoring, connectedTo, Marine Ecosystem Health>
+<Fisheries Management, connectedTo, Plastic Pollution Research>
+<Marine Ecosystem Health, visualizes_data, Satellite Oceanography>
+<Marine Hazards Assessment, connectedTo, Ocean Data Archiving>
+<Marine Protected Area Planning, connectedTo, Coastal Erosion Research>
+<Marine Protected Area Planning, connectedTo, Sea Level Monitoring>
+<Ocean Acidification Research, connectedTo, Chemical Oceanography>
+<Ocean Carbon Cycle, ecosystems, Seabed Resource Exploration>
+<Ocean Current Measurement, connectedTo, Fisheries Management>
+<Ocean Current Measurement, connectedTo, Ocean Acidification Research>
+<Ocean Current Measurement, connectedTo, Sea Level Monitoring>
+<Ocean Data Archiving, connectedTo, Sea Level Monitoring>
+<Ocean Temperature Sensing, connectedTo, Underwater Acoustics>
+<Plastic Pollution Research, interprets, Ocean Temperature Sensing>
+<Polar Oceanography, connectedTo, ROV or AUV Operations>
+<Polar Oceanography, connectedTo, Sea Level Monitoring>
+<ROV or AUV Operations, connectedTo, Coastal Erosion Research>
+<ROV or AUV Operations, connectedTo, Coastal Zone Management>
+<ROV or AUV Operations, connectedTo, Ocean Temperature Sensing>
+<ROV or AUV Operations, connectedTo, Sea Level Monitoring>
+<ROV or AUV Operations, connectedTo, Tsunami Prediction>
+<Satellite Oceanography, connectedTo, Marine Protected Area Planning>
+<Sea Level Monitoring, connectedTo, Acoustic Oceanography>
+<Sea Level Monitoring, connectedTo, Fisheries Management>
+<Sea Level Monitoring, connectedTo, Plastic Pollution Research>
+<Sea Level Monitoring, connectedTo, Seabed Resource Exploration>
+<Tsunami Prediction, connectedTo, Fisheries Management>
+<Tsunami Prediction, connectedTo, Marine Hazards Assessment>
+<Tsunami Prediction, connectedTo, Marine Protected Area Planning>
+<Underwater Acoustics, connectedTo, Coastal Zone Management>
diff --git a/test/diagrams/scanned_medium/diagrams_347.dot b/test/diagrams/scanned_medium/diagrams_347.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1dcab23d2ce85cd26824602682a3a30cdbf84216
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_347.dot
@@ -0,0 +1,64 @@
+digraph {
+	rankdir=TB
+	N0 [label="Seismic Instrumentation Maintenance" color="#E57373" fillcolor="#FFEBEE" shape=predefinedprocess style=filled]
+	N1 [label="Subsurface Imaging" color="#E57373" fillcolor="#FFEBEE" shape=database style=filled]
+	N2 [label="Microseismicity Study" color="#7E57C2" fillcolor="#EDE7F6" shape=action style=filled]
+	N3 [label="Ground Motion Prediction" color="#E57373" fillcolor="#FFEBEE" shape=inputoutput style=filled]
+	N4 [label="Aftershock Analysis" color="#7E57C2" fillcolor="#EDE7F6" shape=box style=filled]
+	N5 [label="Building Code Development" color="#7E57C2" fillcolor="#EDE7F6" shape=rectangle style=filled]
+	N6 [label="Emergency Preparedness for Earthquakes" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N7 [label="Strong Motion Instrumentation" color="#7E57C2" fillcolor="#EDE7F6" shape=ellipse style=filled]
+	N8 [label="Computational Seismology" color="#E57373" fillcolor="#FFEBEE" shape=inputoutput style=filled]
+	N9 [label="Seismic Risk Mitigation" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+	N10 [label="Earthquake Early Warning Systems" color="#AB47BC" fillcolor="#F3E5F5" shape=preparation style=filled]
+	N11 [label="Epicenter Location" color="#E57373" fillcolor="#FFEBEE" shape=predefinedprocess 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]
+	M1 [label="" color="#E57373" fillcolor="#FFEBEE" 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_Earthquake Prediction Research {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Earthquake Prediction Research"
+		nest0_0 [label="Seismic Tomography" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+		nest0_1 [label="Magnitude Determination" color="#E57373" fillcolor="#FFEBEE" shape=vnode_shape style=filled]
+	}
+	subgraph cluster_Planetary Seismology {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Planetary Seismology"
+		nest1_0 [label="Deep Earth Seismology" color="#AB47BC" fillcolor="#F3E5F5" shape=ellipse style=filled]
+		nest1_1 [label="Fault Line Mapping" color="#AB47BC" fillcolor="#F3E5F5" shape=vnode_shape style=filled]
+	}
+	N0 -> N1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#E57373" 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=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="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	N6 -> nest0_0 [color="#AB47BC" penwidth=1.5 style=solid label="alerts" dir=forward]
+	nest0_1 -> N6 [color="#E57373" penwidth=1.5 style=solid label="forecasts" dir=forward]
+	nest1_0 -> nest1_1 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest1_0 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N4 [color="#7E57C2" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	S0 -> N8 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#7E57C2" penwidth=1.5 style=solid label="develops_technologies" dir=forward]
+	S0 -> N9 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N7 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N10 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#000000" penwidth=1.5 style=dashed label="warns" dir=forward]
+	N0 -> M1 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	M1 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N2 -> M2 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+	M2 -> N5 [color="#AB47BC" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_347.txt b/test/diagrams/scanned_medium/diagrams_347.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b6bc2b8f36bfef56573a86262e57c29421e4c2fd
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_347.txt
@@ -0,0 +1,27 @@
+<Aftershock Analysis, connectedTo, Building Code Development>
+<Building Code Development, connectedTo, Emergency Preparedness for Earthquakes>
+<Computational Seismology, connectedTo, Seismic Risk Mitigation>
+<Deep Earth Seismology, connectedTo, Fault Line Mapping>
+<Earthquake Early Warning Systems, connectedTo, Epicenter Location>
+<Emergency Preparedness for Earthquakes, alerts, Seismic Tomography>
+<Emergency Preparedness for Earthquakes, connectedTo, Strong Motion Instrumentation>
+<Fault Line Mapping, connectedTo, Aftershock Analysis>
+<Ground Motion Prediction, connectedTo, Aftershock Analysis>
+<Ground Motion Prediction, connectedTo, Building Code Development>
+<Ground Motion Prediction, connectedTo, Computational Seismology>
+<Ground Motion Prediction, connectedTo, Seismic Risk Mitigation>
+<Ground Motion Prediction, develops_technologies, Building Code Development>
+<Ground Motion Prediction, warns, Earthquake Early Warning Systems>
+<Magnitude Determination, forecasts, Emergency Preparedness for Earthquakes>
+<Microseismicity Study, connectedTo, Building Code Development>
+<Microseismicity Study, connectedTo, Deep Earth Seismology>
+<Microseismicity Study, connectedTo, Ground Motion Prediction>
+<Seismic Instrumentation Maintenance, connectedTo, Earthquake Early Warning Systems>
+<Seismic Instrumentation Maintenance, connectedTo, Subsurface Imaging>
+<Seismic Risk Mitigation, connectedTo, Earthquake Early Warning Systems>
+<Seismic Tomography, connectedTo, Magnitude Determination>
+<Strong Motion Instrumentation, connectedTo, Computational Seismology>
+<Strong Motion Instrumentation, connectedTo, Earthquake Early Warning Systems>
+<Strong Motion Instrumentation, connectedTo, Epicenter Location>
+<Strong Motion Instrumentation, connectedTo, Seismic Risk Mitigation>
+<Subsurface Imaging, connectedTo, Microseismicity Study>
diff --git a/test/diagrams/scanned_medium/diagrams_348.txt b/test/diagrams/scanned_medium/diagrams_348.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0b1edc020ca8eb91703457e3631a3f14ec88d7e3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_348.txt
@@ -0,0 +1,31 @@
+<CRISPR Gene Drive Research, connectedTo, Spatial Genomics>
+<CRISPR Gene Drive Research, modifies, Genomic Data Analysis>
+<Cancer Genomics, commercializes, CRISPR Gene Drive Research>
+<Cancer Genomics, connectedTo, Disease Gene Identification>
+<Cancer Genomics, connectedTo, Spatial Genomics>
+<Cloning Technologies, connectedTo, Variant Calling>
+<Comparative Genomics, connectedTo, Genomic Data Visualization>
+<Disease Gene Identification, connectedTo, CRISPR Gene Drive Research>
+<Disease Gene Identification, connectedTo, Metabolomics>
+<Disease Gene Identification, connectedTo, Methylation Analysis>
+<Disease Gene Identification, connectedTo, Personalized Medicine>
+<Disease Gene Identification, connectedTo, Spatial Genomics>
+<Disease Gene Identification, shares_data, Genomic Data Analysis>
+<Epigenomics, connectedTo, Cancer Genomics>
+<Epigenomics, connectedTo, Spatial Genomics>
+<Gene Annotation, connectedTo, Methylation Analysis>
+<Genome Assembly, connectedTo, Comparative Genomics>
+<Genomic Data Analysis, connectedTo, Cloning Technologies>
+<Genomic Data Analysis, connectedTo, Spatial Genomics>
+<Genomic Data Sharing, connectedTo, Genomic Editing>
+<Genomic Data Visualization, connectedTo, Proteomics>
+<Genomic Editing, connectedTo, CRISPR Gene Drive Research>
+<Metabolomics, connectedTo, CRISPR Gene Drive Research>
+<Metabolomics, connectedTo, Spatial Genomics>
+<Personalized Medicine, connectedTo, Gene Annotation>
+<Personalized Medicine, connectedTo, Genome Assembly>
+<Proteomics, connectedTo, Disease Gene Identification>
+<Spatial Genomics, connectedTo, Gene Annotation>
+<Spatial Genomics, connectedTo, Methylation Analysis>
+<Spatial Genomics, connectedTo, Personalized Medicine>
+<Variant Calling, connectedTo, Genomic Data Sharing>
diff --git a/test/diagrams/scanned_medium/diagrams_349.dot b/test/diagrams/scanned_medium/diagrams_349.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6cae42f284469e637cad1ecfd6252e004ff5e460
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_349.dot
@@ -0,0 +1,73 @@
+digraph {
+	rankdir=LR
+	N0 [label="Cloud_based Speech Services" color="#388E3C" fillcolor="#C8E6C9" shape=database style=filled]
+	N1 [label="Voice Biometrics" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	N2 [label="Command and Control" color="#FF9800" fillcolor="#FFE0B2" shape=action style=filled]
+	N3 [label="Phonetic Transcription" color="#4CAF50" fillcolor="#C8E6C9" shape=multipledocuments style=filled]
+	N4 [label="Disordered Speech Recognition" color="#388E3C" fillcolor="#C8E6C9" shape=document style=filled]
+	N5 [label="Voice Assistant Development" color="#4CAF50" fillcolor="#C8E6C9" shape=diamond style=filled]
+	N6 [label="Voice User Interface Design" color="#FF9800" fillcolor="#FFE0B2" shape=multipledocuments style=filled]
+	N7 [label="Call Center Automation" color="#4CAF50" fillcolor="#C8E6C9" shape=diamond style=filled]
+	N8 [label="Medical Transcription" color="#FF9800" fillcolor="#FFE0B2" shape=multipledocuments style=filled]
+	N9 [label="Noise Reduction" color="#FF9800" fillcolor="#FFE0B2" shape=rect style=filled]
+	N10 [label="Text_to_Speech Synthesis" color="#388E3C" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	N11 [label="Emotion Recognition from Voice" color="#FF9800" fillcolor="#FFE0B2" shape=predefinedprocess style=filled]
+	N12 [label="Speaker Identification" color="#4CAF50" fillcolor="#C8E6C9" shape=diamond style=filled]
+	S0 [label="" color="#388E3C" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#388E3C" fillcolor="#C8E6C9" 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]
+	M1 [label="" color="#4CAF50" fillcolor="#C8E6C9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Speech Emotion Recognition {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Speech Emotion Recognition"
+		nest0_0 [label="Legal Transcription" color="#FF9800" fillcolor="#FFE0B2" shape=multipledocuments style=filled]
+		nest0_1 [label="Children's Speech Recognition" color="#4CAF50" fillcolor="#C8E6C9" shape=database style=filled]
+		nest0_2 [label="Meeting Transcription" color="#388E3C" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+		nest0_3 [label="Accent Recognition" color="#388E3C" fillcolor="#C8E6C9" shape=inputoutput style=filled]
+	}
+	subgraph cluster_Speech_to_Text Conversion {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Speech_to_Text Conversion"
+		nest1_0 [label="Natural Language Understanding" color="#4CAF50" fillcolor="#C8E6C9" shape=database style=filled]
+		nest1_1 [label="Prosody Analysis" color="#4CAF50" fillcolor="#C8E6C9" shape=box style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#388E3C" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	nest0_1 -> nest0_2 [color="#000000" penwidth=1.5 style=solid label="synthesizes" dir=forward]
+	nest0_2 -> nest0_3 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#FF9800" penwidth=1.5 style=solid label="designs" dir=forward]
+	nest0_3 -> N9 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> nest1_0 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> S0 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	S0 -> N11 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#388E3C" penwidth=1.5 style=solid label="understands" dir=forward]
+	S1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#4CAF50" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S2 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+	S2 -> N7 [color="#388E3C" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M0 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#4CAF50" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N3 [color="#FF9800" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_349.txt b/test/diagrams/scanned_medium/diagrams_349.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cf660b8b231260e5c21733b1e713b1fe99c67481
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_349.txt
@@ -0,0 +1,30 @@
+<Accent Recognition, connectedTo, Noise Reduction>
+<Call Center Automation, connectedTo, Medical Transcription>
+<Call Center Automation, connectedTo, Natural Language Understanding>
+<Children's Speech Recognition, synthesizes, Meeting Transcription>
+<Cloud_based Speech Services, connectedTo, Phonetic Transcription>
+<Cloud_based Speech Services, connectedTo, Voice Biometrics>
+<Command and Control, connectedTo, Noise Reduction>
+<Command and Control, connectedTo, Phonetic Transcription>
+<Command and Control, connectedTo, Voice User Interface Design>
+<Command and Control, understands, Call Center Automation>
+<Disordered Speech Recognition, connectedTo, Voice Assistant Development>
+<Emotion Recognition from Voice, connectedTo, Speaker Identification>
+<Legal Transcription, analyzes, Children's Speech Recognition>
+<Medical Transcription, connectedTo, Noise Reduction>
+<Meeting Transcription, connectedTo, Accent Recognition>
+<Natural Language Understanding, connectedTo, Prosody Analysis>
+<Noise Reduction, connectedTo, Emotion Recognition from Voice>
+<Noise Reduction, connectedTo, Speaker Identification>
+<Noise Reduction, connectedTo, Text_to_Speech Synthesis>
+<Phonetic Transcription, connectedTo, Call Center Automation>
+<Phonetic Transcription, connectedTo, Disordered Speech Recognition>
+<Phonetic Transcription, connectedTo, Emotion Recognition from Voice>
+<Phonetic Transcription, designs, Legal Transcription>
+<Prosody Analysis, connectedTo, Voice Biometrics>
+<Text_to_Speech Synthesis, connectedTo, Emotion Recognition from Voice>
+<Voice Assistant Development, connectedTo, Voice User Interface Design>
+<Voice Biometrics, connectedTo, Call Center Automation>
+<Voice Biometrics, connectedTo, Command and Control>
+<Voice Biometrics, connectedTo, Phonetic Transcription>
+<Voice User Interface Design, connectedTo, Call Center Automation>
diff --git a/test/diagrams/scanned_medium/diagrams_35.dot b/test/diagrams/scanned_medium/diagrams_35.dot
new file mode 100644
index 0000000000000000000000000000000000000000..2b1a95daf7100ee513ff2b13c7cb503bc6712f0a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_35.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=RL
+	N0 [label="Personalized Assistance" color="#81C784" fillcolor="#F1F8E9" shape=action style=filled]
+	N1 [label="Complaint Resolution" color="#AABEC6" fillcolor="#E0E6E9" shape=ellipse style=filled]
+	N2 [label="Customer Success Management" color="#AABEC6" fillcolor="#E0E6E9" shape=document style=filled]
+	N3 [label="Email Support" color="#81C784" fillcolor="#F1F8E9" shape=rectangle style=filled]
+	N4 [label="Phone Support" color="#AABEC6" fillcolor="#E0E6E9" shape=parallelogram style=filled]
+	N5 [label="Issue Escalation" color="#81C784" fillcolor="#F1F8E9" shape=rect style=filled]
+	N6 [label="Call Center Management" color="#81C784" fillcolor="#F1F8E9" shape=document style=filled]
+	N7 [label="Customer Onboarding Support" color="#81C784" fillcolor="#F1F8E9" shape=multipledocuments style=filled]
+	N8 [label="Account Management" color="#B8C0F5" fillcolor="#ECF0FD" shape=database style=filled]
+	N9 [label="Proactive Communication" color="#B8C0F5" fillcolor="#ECF0FD" shape=ellipse style=filled]
+	N10 [label="Product Information Provision" color="#B8C0F5" fillcolor="#ECF0FD" shape=box style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="retains" dir=forward]
+	N1 -> N2 [color="#AABEC6" penwidth=1.5 style=solid label="resolves" dir=forward]
+	N2 -> N3 [color="#81C784" penwidth=1.5 style=solid label="listens" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#81C784" penwidth=1.5 style=dashed label="calls" dir=forward]
+	N5 -> N6 [color="#B8C0F5" penwidth=1.5 style=solid label="advises" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="consults" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#81C784" penwidth=1.5 style=dashed label="guides" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N8 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_35.txt b/test/diagrams/scanned_medium/diagrams_35.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a00be3262d693390693c32e496219f5fff43e52a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_35.txt
@@ -0,0 +1,11 @@
+<Account Management, guides, Proactive Communication>
+<Call Center Management, consults, Customer Onboarding Support>
+<Complaint Resolution, connectedTo, Account Management>
+<Complaint Resolution, resolves, Customer Success Management>
+<Customer Onboarding Support, connectedTo, Account Management>
+<Customer Success Management, listens, Email Support>
+<Email Support, connectedTo, Phone Support>
+<Issue Escalation, advises, Call Center Management>
+<Personalized Assistance, retains, Complaint Resolution>
+<Phone Support, calls, Issue Escalation>
+<Proactive Communication, connectedTo, Product Information Provision>
diff --git a/test/diagrams/scanned_medium/diagrams_350.dot b/test/diagrams/scanned_medium/diagrams_350.dot
new file mode 100644
index 0000000000000000000000000000000000000000..379f4e18f149ddf37680449ae3a3a46980aad05d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_350.dot
@@ -0,0 +1,72 @@
+digraph {
+	rankdir=TB
+	N0 [label="Chatbot Development" color="#B0C5CD" fillcolor="#DFE7EB" shape=parallelogram style=filled]
+	N1 [label="Patent Analysis" color="#E91E63" fillcolor="#F8BBD0" shape=rect style=filled]
+	N2 [label="Natural Language Processing" color="#B0C5CD" fillcolor="#DFE7EB" shape=inputoutput style=filled]
+	N3 [label="Information Extraction" color="#E91E63" fillcolor="#F8BBD0" shape=rect style=filled]
+	N4 [label="Sentiment Analysis" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N5 [label="Concept Extraction" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	N6 [label="Part_of_Speech Tagging" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N7 [label="Deep Learning for NLP" color="#5C6BC0" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N8 [label="Document Summarization" color="#5C6BC0" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	N9 [label="Language Translation for Text Mining" color="#B0C5CD" fillcolor="#DFE7EB" shape=predefinedprocess style=filled]
+	N10 [label="Regular Expressions for Text" color="#B0C5CD" fillcolor="#DFE7EB" shape=parallelogram style=filled]
+	N11 [label="Data Cleaning for Text" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	S0 [label="" color="#E91E63" fillcolor="#F8BBD0" 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="#B0C5CD" fillcolor="#DFE7EB" 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]
+	M2 [label="" color="#5C6BC0" fillcolor="#E8EAF6" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Named Entity Recognition {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Named Entity Recognition"
+		nest0_0 [label="Biomedical Text Mining" color="#B0C5CD" fillcolor="#DFE7EB" shape=database style=filled]
+		nest0_1 [label="Plagiarism Detection" color="#B0C5CD" fillcolor="#DFE7EB" shape=predefinedprocess style=filled]
+	}
+	subgraph cluster_Automated Content Tagging {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Automated Content Tagging"
+		nest1_0 [label="Machine Learning for Text Mining" color="#5C6BC0" fillcolor="#E8EAF6" shape=action style=filled]
+		nest1_1 [label="Text Preprocessing" color="#E91E63" fillcolor="#F8BBD0" shape=multipledocuments style=filled]
+		nest1_2 [label="Knowledge Graph Construction" color="#E91E63" fillcolor="#F8BBD0" shape=parallelogram style=filled]
+		nest1_3 [label="Author Attribution" color="#B0C5CD" fillcolor="#DFE7EB" shape=database style=filled]
+	}
+	N0 -> N1 [color="#B0C5CD" 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=solid dir=forward]
+	N3 -> N4 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N1 -> nest0_0 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N1 [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="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	N7 -> nest1_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> S0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N10 [color="#000000" penwidth=1.5 style=solid label="patterns" dir=forward]
+	S0 -> N11 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S2 [color="#B0C5CD" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N10 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N11 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M0 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N7 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	N1 -> M1 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	M1 -> N5 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M2 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+	M2 -> N5 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_350.txt b/test/diagrams/scanned_medium/diagrams_350.txt
new file mode 100644
index 0000000000000000000000000000000000000000..675e6c25326f7e41f031246a66706d25af81c88a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_350.txt
@@ -0,0 +1,29 @@
+<Author Attribution, connectedTo, Deep Learning for NLP>
+<Biomedical Text Mining, connectedTo, Plagiarism Detection>
+<Chatbot Development, connectedTo, Concept Extraction>
+<Chatbot Development, connectedTo, Deep Learning for NLP>
+<Chatbot Development, connectedTo, Patent Analysis>
+<Concept Extraction, connectedTo, Part_of_Speech Tagging>
+<Deep Learning for NLP, connectedTo, Document Summarization>
+<Deep Learning for NLP, connectedTo, Machine Learning for Text Mining>
+<Document Summarization, connectedTo, Data Cleaning for Text>
+<Document Summarization, connectedTo, Language Translation for Text Mining>
+<Document Summarization, patterns, Regular Expressions for Text>
+<Information Extraction, connectedTo, Concept Extraction>
+<Information Extraction, connectedTo, Sentiment Analysis>
+<Knowledge Graph Construction, connectedTo, Author Attribution>
+<Language Translation for Text Mining, connectedTo, Regular Expressions for Text>
+<Machine Learning for Text Mining, connectedTo, Text Preprocessing>
+<Natural Language Processing, connectedTo, Information Extraction>
+<Part_of_Speech Tagging, connectedTo, Deep Learning for NLP>
+<Patent Analysis, connectedTo, Biomedical Text Mining>
+<Patent Analysis, connectedTo, Concept Extraction>
+<Patent Analysis, connectedTo, Natural Language Processing>
+<Plagiarism Detection, connectedTo, Patent Analysis>
+<Regular Expressions for Text, connectedTo, Data Cleaning for Text>
+<Sentiment Analysis, connectedTo, Concept Extraction>
+<Sentiment Analysis, connectedTo, Data Cleaning for Text>
+<Sentiment Analysis, connectedTo, Deep Learning for NLP>
+<Sentiment Analysis, connectedTo, Document Summarization>
+<Sentiment Analysis, connectedTo, Regular Expressions for Text>
+<Text Preprocessing, connectedTo, Knowledge Graph Construction>
diff --git a/test/diagrams/scanned_medium/diagrams_351.dot b/test/diagrams/scanned_medium/diagrams_351.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9e4d4fa6f09be20840c99d9390e592320ef44734
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_351.dot
@@ -0,0 +1,89 @@
+digraph {
+	rankdir=LR
+	N0 [label="Building Information Modeling Integration" color="#5C6BC0" fillcolor="#E8EAF6" shape=diamond style=filled]
+	N1 [label="Automotive Digital Twins" color="#5C6BC0" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+	N2 [label="Enterprise Asset Management Integration" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+	N3 [label="Real_Time Data Streaming" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+	N4 [label="Simulation and Prediction" color="#A1D7CD" fillcolor="#EDF5F3" shape=rectangle style=filled]
+	N5 [label="Anomaly Detection" color="#5C6BC0" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N6 [label="AI or ML Model Integration" color="#EAEFA5" fillcolor="#FDFCEB" shape=parallelogram style=filled]
+	N7 [label="Interoperability Standards" color="#A1D7CD" fillcolor="#EDF5F3" shape=hexagon style=filled]
+	N8 [label="Scalability of Models" color="#EAEFA5" fillcolor="#FDFCEB" shape=parallelogram style=filled]
+	N9 [label="Simulation Platform Development" color="#EAEFA5" fillcolor="#FDFCEB" shape=multipledocuments style=filled]
+	N10 [label="IoT Data Ingestion" color="#5C6BC0" fillcolor="#E8EAF6" shape=multipledocuments style=filled]
+	N11 [label="Design Validation" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+	N12 [label="Aerospace Digital Twins" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+	N13 [label="Sensor Data Integration" color="#5C6BC0" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	N14 [label="What_If Scenario Analysis" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N15 [label="Maintenance Scheduling" color="#EAEFA5" fillcolor="#FDFCEB" shape=vnode_shape style=filled]
+	N16 [label="Asset Optimization" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N17 [label="Data Governance for Twins" color="#EAEFA5" fillcolor="#FDFCEB" shape=multipledocuments style=filled]
+	N18 [label="Healthcare Digital Twins" color="#5C6BC0" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	S0 [label="" color="#EAEFA5" fillcolor="#FDFCEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#EAEFA5" fillcolor="#FDFCEB" 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="#5C6BC0" fillcolor="#E8EAF6" 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_Remote Control Capabilities {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Remote Control Capabilities"
+		nest0_0 [label="Smart Manufacturing" color="#5C6BC0" fillcolor="#E8EAF6" shape=inputoutput style=filled]
+		nest0_1 [label="Lifecycle Management" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+		nest0_2 [label="Predictive Maintenance" color="#5C6BC0" fillcolor="#E8EAF6" shape=ellipse style=filled]
+		nest0_3 [label="Cyber_Physical Systems" color="#EAEFA5" fillcolor="#FDFCEB" shape=database style=filled]
+	}
+	subgraph cluster_Digital Twin Lifecycle Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Digital Twin Lifecycle Management"
+		nest1_0 [label="Virtual Reality Interaction" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+		nest1_1 [label="Edge Computing for Twins" color="#A1D7CD" fillcolor="#EDF5F3" shape=preparation style=filled]
+	}
+	N0 -> N1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N11 -> N12 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N12 -> N13 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N15 -> N16 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N16 -> N17 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N17 -> N18 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> nest0_3 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N13 -> nest0_0 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N5 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest1_0 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N1 [color="#EAEFA5" penwidth=1.5 style=dashed label="systems_optimizes" dir=forward]
+	N9 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N12 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N15 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N13 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N9 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N7 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M0 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N13 -> M0 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	M0 -> N18 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N6 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N15 -> M2 [color="#5C6BC0" penwidth=1.5 style=solid label="creates" dir=forward]
+	N7 -> M2 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N17 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_351.txt b/test/diagrams/scanned_medium/diagrams_351.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4b3cf895016af1a5bdb7aa0e1be7013786db93ad
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_351.txt
@@ -0,0 +1,41 @@
+<AI or ML Model Integration, connectedTo, Interoperability Standards>
+<Aerospace Digital Twins, connectedTo, Sensor Data Integration>
+<Anomaly Detection, connectedTo, AI or ML Model Integration>
+<Anomaly Detection, connectedTo, Healthcare Digital Twins>
+<Asset Optimization, connectedTo, Data Governance for Twins>
+<Automotive Digital Twins, connectedTo, Enterprise Asset Management Integration>
+<Building Information Modeling Integration, connectedTo, AI or ML Model Integration>
+<Building Information Modeling Integration, connectedTo, Automotive Digital Twins>
+<Cyber_Physical Systems, connectedTo, Anomaly Detection>
+<Data Governance for Twins, connectedTo, Healthcare Digital Twins>
+<Design Validation, connectedTo, Aerospace Digital Twins>
+<Edge Computing for Twins, systems_optimizes, Automotive Digital Twins>
+<Enterprise Asset Management Integration, connectedTo, AI or ML Model Integration>
+<Enterprise Asset Management Integration, connectedTo, Interoperability Standards>
+<Enterprise Asset Management Integration, connectedTo, Real_Time Data Streaming>
+<Enterprise Asset Management Integration, connectedTo, Sensor Data Integration>
+<Enterprise Asset Management Integration, connectedTo, Simulation Platform Development>
+<Enterprise Asset Management Integration, connectedTo, Virtual Reality Interaction>
+<Enterprise Asset Management Integration, connectedTo, What_If Scenario Analysis>
+<Interoperability Standards, connectedTo, Data Governance for Twins>
+<Interoperability Standards, connectedTo, Scalability of Models>
+<IoT Data Ingestion, connectedTo, Design Validation>
+<Lifecycle Management, connectedTo, Predictive Maintenance>
+<Maintenance Scheduling, connectedTo, Asset Optimization>
+<Maintenance Scheduling, creates, Data Governance for Twins>
+<Predictive Maintenance, connectedTo, Cyber_Physical Systems>
+<Real_Time Data Streaming, connectedTo, AI or ML Model Integration>
+<Real_Time Data Streaming, connectedTo, Simulation and Prediction>
+<Scalability of Models, connectedTo, Data Governance for Twins>
+<Scalability of Models, connectedTo, Simulation Platform Development>
+<Sensor Data Integration, connectedTo, Healthcare Digital Twins>
+<Sensor Data Integration, connectedTo, Smart Manufacturing>
+<Sensor Data Integration, connectedTo, What_If Scenario Analysis>
+<Simulation Platform Development, connectedTo, Aerospace Digital Twins>
+<Simulation Platform Development, connectedTo, IoT Data Ingestion>
+<Simulation Platform Development, connectedTo, Maintenance Scheduling>
+<Simulation and Prediction, connectedTo, AI or ML Model Integration>
+<Simulation and Prediction, connectedTo, Anomaly Detection>
+<Smart Manufacturing, connectedTo, Lifecycle Management>
+<Virtual Reality Interaction, connectedTo, Edge Computing for Twins>
+<What_If Scenario Analysis, connectedTo, Maintenance Scheduling>
diff --git a/test/diagrams/scanned_medium/diagrams_352.dot b/test/diagrams/scanned_medium/diagrams_352.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f44a5dcf088ece0d327f7d72c3ff2fa315fe6f9a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_352.dot
@@ -0,0 +1,66 @@
+digraph {
+	rankdir=LR
+	N0 [label="Report Generation Automation" color="#4DB6AC" fillcolor="#E0F2F1" shape=preparation style=filled]
+	N1 [label="Automation Opportunity Identification" color="#FFB74D" fillcolor="#FFF3E0" shape=ellipse style=filled]
+	N2 [label="Finance Process Automation" color="#4DB6AC" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N3 [label="Audit Trail for Automation" color="#FFB74D" fillcolor="#FFF3E0" shape=database style=filled]
+	N4 [label="Change Management for Automation" color="#FFB74D" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N5 [label="Email Automation" color="#D3EB9F" fillcolor="#F8FDD3" shape=vnode_shape style=filled]
+	N6 [label="User Training for Automated Systems" color="#4DB6AC" fillcolor="#E0F2F1" shape=box style=filled]
+	N7 [label="Document Processing Automation" color="#FFB74D" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N8 [label="Compliance in Automation" color="#FFB74D" fillcolor="#FFF3E0" shape=rectangle style=filled]
+	N9 [label="Supply Chain Automation" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+	S0 [label="" color="#4DB6AC" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFB74D" fillcolor="#FFF3E0" 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]
+	M2 [label="" color="#4DB6AC" fillcolor="#E0F2F1" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Business Process Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Business Process Management"
+		nest0_0 [label="Natural Language Processing for Automation" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+		nest0_1 [label="Process Mapping" color="#D3EB9F" fillcolor="#F8FDD3" shape=preparation style=filled]
+	}
+	subgraph cluster_API Automation {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="API Automation"
+		nest1_0 [label="IT Operations Automation" color="#D3EB9F" fillcolor="#F8FDD3" shape=predefinedprocess style=filled]
+		nest1_1 [label="Task Automation" color="#4DB6AC" fillcolor="#E0F2F1" shape=box style=filled]
+	}
+	N0 -> N1 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFB74D" penwidth=1.5 style=dashed label="BPM_utilizes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	nest0_0 -> nest0_1 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N3 -> nest0_0 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N2 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N4 -> nest1_0 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N9 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N9 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N3 -> S2 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N5 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M0 [color="#FFB74D" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M1 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N5 -> M1 [color="#FFB74D" penwidth=1.5 style=dashed label="improves_accuracy" dir=forward]
+	M1 -> N9 [color="#FFB74D" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M2 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N7 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_352.txt b/test/diagrams/scanned_medium/diagrams_352.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cb270b8e2c2c7cfa6e097b5f86756b19cd3402e7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_352.txt
@@ -0,0 +1,28 @@
+<Audit Trail for Automation, connectedTo, Change Management for Automation>
+<Audit Trail for Automation, connectedTo, Compliance in Automation>
+<Audit Trail for Automation, connectedTo, Document Processing Automation>
+<Audit Trail for Automation, connectedTo, Email Automation>
+<Audit Trail for Automation, connectedTo, Natural Language Processing for Automation>
+<Audit Trail for Automation, connectedTo, Supply Chain Automation>
+<Automation Opportunity Identification, connectedTo, Document Processing Automation>
+<Automation Opportunity Identification, connectedTo, Email Automation>
+<Automation Opportunity Identification, connectedTo, Finance Process Automation>
+<Change Management for Automation, connectedTo, Email Automation>
+<Change Management for Automation, connectedTo, IT Operations Automation>
+<Compliance in Automation, connectedTo, Supply Chain Automation>
+<Document Processing Automation, connectedTo, Compliance in Automation>
+<Document Processing Automation, connectedTo, Supply Chain Automation>
+<Email Automation, BPM_utilizes, User Training for Automated Systems>
+<Email Automation, connectedTo, Document Processing Automation>
+<Email Automation, improves_accuracy, Supply Chain Automation>
+<Finance Process Automation, connectedTo, Audit Trail for Automation>
+<Finance Process Automation, connectedTo, Document Processing Automation>
+<Finance Process Automation, connectedTo, Email Automation>
+<IT Operations Automation, connectedTo, Task Automation>
+<Natural Language Processing for Automation, connectedTo, Process Mapping>
+<Process Mapping, connectedTo, Finance Process Automation>
+<Report Generation Automation, connectedTo, Automation Opportunity Identification>
+<Report Generation Automation, connectedTo, Email Automation>
+<Report Generation Automation, connectedTo, Supply Chain Automation>
+<Task Automation, connectedTo, Supply Chain Automation>
+<User Training for Automated Systems, connectedTo, Document Processing Automation>
diff --git a/test/diagrams/scanned_medium/diagrams_353.dot b/test/diagrams/scanned_medium/diagrams_353.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fee526ba8e4621850e1946e9e22c148fcc1d82cf
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_353.dot
@@ -0,0 +1,58 @@
+digraph {
+	rankdir=LR
+	N0 [label="Root Cause Analysis" color="#FFF176" fillcolor="#FFFDE7" shape=multipledocuments style=filled]
+	N1 [label="Food Safety Quality Control" color="#FFF176" fillcolor="#FFFDE7" shape=document style=filled]
+	N2 [label="Six Sigma Methodologies" color="#FFF176" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N3 [label="Sampling Plans" color="#FFA726" fillcolor="#FFF3E0" shape=document style=filled]
+	N4 [label="Process Monitoring" color="#FFA726" fillcolor="#FFF3E0" shape=document style=filled]
+	N5 [label="Lean Principles in Quality" color="#FFA726" fillcolor="#FFF3E0" shape=box style=filled]
+	N6 [label="Calibration of Instruments" color="#FFA726" fillcolor="#FFF3E0" shape=preparation style=filled]
+	N7 [label="Non_Destructive Testing" color="#C0CA33" fillcolor="#F9FBE7" shape=rectangle style=filled]
+	N8 [label="Total Quality Management" color="#C0CA33" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	N9 [label="Customer Feedback Analysis" color="#C0CA33" fillcolor="#F9FBE7" shape=diamond style=filled]
+	N10 [label="Automated Optical Inspection" color="#C0CA33" fillcolor="#F9FBE7" shape=rect style=filled]
+	N11 [label="Audit Planning" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	S0 [label="" color="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S1 [label="" color="#FFA726" fillcolor="#FFF3E0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#C0CA33" fillcolor="#F9FBE7" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Statistical Process Control {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Statistical Process Control"
+		nest0_0 [label="Quality Data Analysis" color="#FFF176" fillcolor="#FFFDE7" shape=diamond style=filled]
+		nest0_1 [label="Service Quality Management" color="#FFA726" fillcolor="#FFF3E0" shape=preparation style=filled]
+	}
+	subgraph cluster_Component Inspection {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Component Inspection"
+		nest1_0 [label="Quality Standards Development" color="#FFA726" fillcolor="#FFF3E0" shape=predefinedprocess style=filled]
+		nest1_1 [label="Measurement System Analysis" color="#FFF176" fillcolor="#FFFDE7" shape=multipledocuments style=filled]
+	}
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="root_causes_analyzes" 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="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N2 -> nest0_0 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N3 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#C0CA33" penwidth=1.5 style=solid label="improves" dir=forward]
+	N3 -> nest1_0 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> N3 [color="#FFF176" penwidth=1.5 style=dashed dir=forward]
+	N3 -> S0 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#FFF176" penwidth=1.5 style=solid dir=forward]
+	S0 -> N6 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S1 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	S1 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S1 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N4 -> M1 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	M1 -> N11 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_353.txt b/test/diagrams/scanned_medium/diagrams_353.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6d4fe71b83ca2dcb718820af2c2c78a9dab40cd3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_353.txt
@@ -0,0 +1,23 @@
+<Automated Optical Inspection, connectedTo, Audit Planning>
+<Calibration of Instruments, connectedTo, Audit Planning>
+<Calibration of Instruments, connectedTo, Non_Destructive Testing>
+<Customer Feedback Analysis, connectedTo, Automated Optical Inspection>
+<Food Safety Quality Control, connectedTo, Audit Planning>
+<Food Safety Quality Control, connectedTo, Six Sigma Methodologies>
+<Food Safety Quality Control, connectedTo, Total Quality Management>
+<Lean Principles in Quality, connectedTo, Calibration of Instruments>
+<Measurement System Analysis, connectedTo, Sampling Plans>
+<Non_Destructive Testing, connectedTo, Total Quality Management>
+<Process Monitoring, connectedTo, Audit Planning>
+<Process Monitoring, connectedTo, Lean Principles in Quality>
+<Quality Data Analysis, connectedTo, Service Quality Management>
+<Quality Standards Development, improves, Measurement System Analysis>
+<Root Cause Analysis, root_causes_analyzes, Food Safety Quality Control>
+<Sampling Plans, connectedTo, Calibration of Instruments>
+<Sampling Plans, connectedTo, Lean Principles in Quality>
+<Sampling Plans, connectedTo, Process Monitoring>
+<Sampling Plans, connectedTo, Quality Standards Development>
+<Service Quality Management, connectedTo, Sampling Plans>
+<Six Sigma Methodologies, connectedTo, Quality Data Analysis>
+<Six Sigma Methodologies, connectedTo, Sampling Plans>
+<Total Quality Management, connectedTo, Customer Feedback Analysis>
diff --git a/test/diagrams/scanned_medium/diagrams_354.dot b/test/diagrams/scanned_medium/diagrams_354.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c3cd2a74faed7f623c49a8bdf46fe1cf12eb4ca5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_354.dot
@@ -0,0 +1,63 @@
+digraph {
+	rankdir=BT
+	N0 [label="Cloud ERP Deployment" color="#E0E0E0" fillcolor="#EBEBEB" shape=action style=filled]
+	N1 [label="Master Data Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=predefinedprocess style=filled]
+	N2 [label="Module Implementation" color="#E0E0E0" fillcolor="#EBEBEB" shape=rect style=filled]
+	N3 [label="ERP Consulting" color="#B8C0F5" fillcolor="#ECF0FD" shape=vnode_shape style=filled]
+	N4 [label="Data Migration" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N5 [label="Customization" color="#B8C0F5" fillcolor="#ECF0FD" shape=predefinedprocess style=filled]
+	N6 [label="User Training" color="#E0E0E0" fillcolor="#EBEBEB" shape=multipledocuments style=filled]
+	N7 [label="On_Premise ERP Solutions" color="#E0E0E0" fillcolor="#EBEBEB" shape=rectangle style=filled]
+	S0 [label="" color="#CD8FF2" fillcolor="#ECCFF5" 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="#B8C0F5" fillcolor="#ECF0FD" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#E0E0E0" fillcolor="#EBEBEB" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_User Acceptance Testing {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="User Acceptance Testing"
+		nest0_0 [label="Workflow Automation in ERP" color="#B8C0F5" fillcolor="#ECF0FD" shape=database style=filled]
+		nest0_1 [label="Security Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=inputoutput style=filled]
+		nest0_2 [label="Business Intelligence Integration" color="#B8C0F5" fillcolor="#ECF0FD" shape=action style=filled]
+	}
+	subgraph cluster_Mobile ERP Access {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Mobile ERP Access"
+		nest1_0 [label="Hybrid ERP Models" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+		nest1_1 [label="System Configuration" color="#E0E0E0" fillcolor="#EBEBEB" shape=vnode_shape style=filled]
+		nest1_2 [label="Asset Management" color="#E0E0E0" fillcolor="#EBEBEB" shape=box style=filled]
+		nest1_3 [label="ERP System Selection" color="#B8C0F5" fillcolor="#ECF0FD" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> nest0_2 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest0_0 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	nest0_2 -> N6 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> nest1_0 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N6 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N3 -> S0 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N5 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N7 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N5 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	S1 -> N6 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M0 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	M0 -> N5 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#CD8FF2" penwidth=1.5 style=dashed dir=forward]
+	N4 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#E0E0E0" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_354.txt b/test/diagrams/scanned_medium/diagrams_354.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1e77eb1cc1a735f2c7d5b539c1d0d86e18dba65f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_354.txt
@@ -0,0 +1,24 @@
+<Asset Management, connectedTo, ERP System Selection>
+<Business Intelligence Integration, connectedTo, User Training>
+<Cloud ERP Deployment, connectedTo, Customization>
+<Cloud ERP Deployment, connectedTo, Master Data Management>
+<Cloud ERP Deployment, connectedTo, On_Premise ERP Solutions>
+<Customization, connectedTo, User Training>
+<Data Migration, connectedTo, Customization>
+<Data Migration, connectedTo, On_Premise ERP Solutions>
+<ERP Consulting, connectedTo, Customization>
+<ERP Consulting, connectedTo, Data Migration>
+<ERP Consulting, connectedTo, On_Premise ERP Solutions>
+<ERP Consulting, connectedTo, User Training>
+<ERP System Selection, connectedTo, User Training>
+<Hybrid ERP Models, connectedTo, System Configuration>
+<Master Data Management, connectedTo, Customization>
+<Master Data Management, connectedTo, Module Implementation>
+<Module Implementation, connectedTo, Customization>
+<Module Implementation, connectedTo, ERP Consulting>
+<Security Management, connectedTo, Business Intelligence Integration>
+<System Configuration, connectedTo, Asset Management>
+<User Training, connectedTo, Hybrid ERP Models>
+<User Training, connectedTo, On_Premise ERP Solutions>
+<User Training, connectedTo, Workflow Automation in ERP>
+<Workflow Automation in ERP, connectedTo, Security Management>
diff --git a/test/diagrams/scanned_medium/diagrams_355.dot b/test/diagrams/scanned_medium/diagrams_355.dot
new file mode 100644
index 0000000000000000000000000000000000000000..de393af49bb47455130abe182a1c9b3689cc5769
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_355.dot
@@ -0,0 +1,68 @@
+digraph {
+	rankdir=LR
+	N0 [label="Yield Mapping" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+	N1 [label="IoT in Agriculture" color="#FFB2A5" fillcolor="#FFDCD6" shape=hexagon style=filled]
+	N2 [label="Carbon Farming Initiatives" color="#607D8B" fillcolor="#CFD8DC" shape=predefinedprocess style=filled]
+	N3 [label="Farm Management Software" color="#FFB2A5" fillcolor="#FFDCD6" shape=inputoutput style=filled]
+	N4 [label="Connectivity Solutions" color="#C0CA33" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N5 [label="Aquaculture Monitoring" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	N6 [label="Herd Health Monitoring" color="#FFB2A5" fillcolor="#FFDCD6" shape=predefinedprocess style=filled]
+	N7 [label="Digital Agronomy" color="#607D8B" fillcolor="#CFD8DC" shape=hexagon style=filled]
+	N8 [label="Pest and Disease Management Systems" color="#FFB2A5" fillcolor="#FFDCD6" shape=predefinedprocess style=filled]
+	N9 [label="Resource Optimization" color="#C0CA33" fillcolor="#F9FBE7" shape=predefinedprocess style=filled]
+	N10 [label="Automated Irrigation" color="#C0CA33" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N11 [label="Drone Monitoring" color="#C0CA33" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N12 [label="Crop Insurance Assessment" color="#FFB2A5" fillcolor="#FFDCD6" shape=rect style=filled]
+	N13 [label="Forestry Management with Digital Tools" color="#C0CA33" fillcolor="#F9FBE7" shape=database style=filled]
+	N14 [label="Vertical Farming Technology" color="#C0CA33" fillcolor="#F9FBE7" shape=inputoutput style=filled]
+	N15 [label="Farm Data Integration" color="#607D8B" fillcolor="#CFD8DC" 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="#607D8B" fillcolor="#CFD8DC" 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_Smart Livestock Monitoring {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Smart Livestock Monitoring"
+		nest0_0 [label="Sensor Deployment" color="#FFB2A5" fillcolor="#FFDCD6" shape=document style=filled]
+		nest0_1 [label="Geographic Information Systems for Farms" color="#FFB2A5" fillcolor="#FFDCD6" shape=preparation style=filled]
+	}
+	subgraph cluster_Farm Labor Management Software {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Farm Labor Management Software"
+		nest1_0 [label="Smart Greenhouses" color="#FFB2A5" fillcolor="#FFDCD6" shape=vnode_shape style=filled]
+		nest1_1 [label="Variable Rate Application" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	}
+	N0 -> N1 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#C0CA33" 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="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N8 -> nest0_0 [color="#C0CA33" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N13 -> nest1_0 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N2 [color="#607D8B" penwidth=1.5 style=solid label="automates" dir=forward]
+	N9 -> S1 [color="#C0CA33" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N14 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N11 [color="#000000" 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=dashed dir=forward]
+	N0 -> M0 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	M0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M1 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N0 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> M1 [color="#FFB2A5" penwidth=1.5 style=dashed dir=forward]
+	M1 -> N6 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_355.txt b/test/diagrams/scanned_medium/diagrams_355.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3f8cdc5aef547d18f1dbfa140482b04af0b82112
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_355.txt
@@ -0,0 +1,29 @@
+<Aquaculture Monitoring, connectedTo, Herd Health Monitoring>
+<Automated Irrigation, connectedTo, Drone Monitoring>
+<Carbon Farming Initiatives, connectedTo, Connectivity Solutions>
+<Carbon Farming Initiatives, connectedTo, Farm Management Software>
+<Connectivity Solutions, connectedTo, Aquaculture Monitoring>
+<Crop Insurance Assessment, connectedTo, Forestry Management with Digital Tools>
+<Digital Agronomy, connectedTo, Pest and Disease Management Systems>
+<Drone Monitoring, connectedTo, Crop Insurance Assessment>
+<Farm Management Software, connectedTo, Connectivity Solutions>
+<Farm Management Software, connectedTo, Herd Health Monitoring>
+<Forestry Management with Digital Tools, connectedTo, Smart Greenhouses>
+<Forestry Management with Digital Tools, connectedTo, Vertical Farming Technology>
+<Geographic Information Systems for Farms, connectedTo, Automated Irrigation>
+<Herd Health Monitoring, connectedTo, Digital Agronomy>
+<IoT in Agriculture, connectedTo, Carbon Farming Initiatives>
+<IoT in Agriculture, connectedTo, Connectivity Solutions>
+<IoT in Agriculture, connectedTo, Herd Health Monitoring>
+<Pest and Disease Management Systems, connectedTo, Resource Optimization>
+<Pest and Disease Management Systems, connectedTo, Sensor Deployment>
+<Resource Optimization, connectedTo, Automated Irrigation>
+<Resource Optimization, connectedTo, Drone Monitoring>
+<Resource Optimization, connectedTo, Vertical Farming Technology>
+<Sensor Deployment, connectedTo, Geographic Information Systems for Farms>
+<Smart Greenhouses, connectedTo, Variable Rate Application>
+<Variable Rate Application, automates, Carbon Farming Initiatives>
+<Vertical Farming Technology, connectedTo, Farm Data Integration>
+<Yield Mapping, connectedTo, Connectivity Solutions>
+<Yield Mapping, connectedTo, Herd Health Monitoring>
+<Yield Mapping, connectedTo, IoT in Agriculture>
diff --git a/test/diagrams/scanned_medium/diagrams_356.dot b/test/diagrams/scanned_medium/diagrams_356.dot
new file mode 100644
index 0000000000000000000000000000000000000000..db5d3b591f4576545c535d39de5904b7e0ac9f0c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_356.dot
@@ -0,0 +1,82 @@
+digraph {
+	rankdir=BT
+	N0 [label="Esports Analytics" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+	N1 [label="Legal Advisory for Esports" color="#03A9F4" fillcolor="#B3E5FC" shape=multipledocuments style=filled]
+	N2 [label="Content Creation" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+	N3 [label="Player Contracts" color="#BDAFA8" fillcolor="#E4E0DF" shape=diamond style=filled]
+	N4 [label="Merchandise Sales" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N5 [label="Esports Team Ownership" color="#03A9F4" fillcolor="#B3E5FC" shape=action style=filled]
+	N6 [label="Social Media Management" color="#03A9F4" fillcolor="#B3E5FC" shape=box style=filled]
+	N7 [label="Fan Community Building" color="#BDAFA8" fillcolor="#E4E0DF" shape=box style=filled]
+	N8 [label="Team Management" color="#03A9F4" fillcolor="#B3E5FC" shape=ellipse style=filled]
+	N9 [label="Audience Engagement" color="#03A9F4" fillcolor="#B3E5FC" shape=rect style=filled]
+	N10 [label="Game Strategy Development" color="#A2D0FF" fillcolor="#E8F0FF" shape=inputoutput style=filled]
+	N11 [label="League Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=rect style=filled]
+	N12 [label="Coaching Staff Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=parallelogram style=filled]
+	N13 [label="Player Scouting" color="#03A9F4" fillcolor="#B3E5FC" shape=database style=filled]
+	N14 [label="Physical Conditioning for Players" color="#03A9F4" fillcolor="#B3E5FC" shape=rect style=filled]
+	N15 [label="Event Broadcasting" color="#A2D0FF" fillcolor="#E8F0FF" shape=predefinedprocess style=filled]
+	N16 [label="Rules and Regulations Enforcement" color="#A2D0FF" fillcolor="#E8F0FF" shape=hexagon style=filled]
+	N17 [label="Player Wellness Programs" color="#03A9F4" fillcolor="#B3E5FC" shape=vnode_shape style=filled]
+	N18 [label="Sponsorship Acquisition" color="#03A9F4" fillcolor="#B3E5FC" shape=rect style=filled]
+	N19 [label="Gaming Hardware Optimization" color="#BDAFA8" fillcolor="#E4E0DF" shape=inputoutput style=filled]
+	N20 [label="Anti_Cheat Measures" color="#BDAFA8" fillcolor="#E4E0DF" shape=inputoutput style=filled]
+	S0 [label="" color="#BDAFA8" fillcolor="#E4E0DF" 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]
+	M2 [label="" color="#03A9F4" fillcolor="#B3E5FC" 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="Live Streaming Production" color="#A2D0FF" fillcolor="#E8F0FF" shape=box style=filled]
+		nest0_1 [label="Talent Representation" color="#BDAFA8" fillcolor="#E4E0DF" shape=box style=filled]
+	}
+	subgraph cluster_Game Server Management {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Game Server Management"
+		nest1_0 [label="Broadcast Technology for Esports" color="#03A9F4" fillcolor="#B3E5FC" shape=vnode_shape style=filled]
+		nest1_1 [label="Prize Pool Management" color="#03A9F4" fillcolor="#B3E5FC" shape=action style=filled]
+	}
+	N0 -> N1 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#03A9F4" penwidth=1.5 style=dashed label="streams" dir=forward]
+	N8 -> N9 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#A2D0FF" 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=dashed label="partners" dir=forward]
+	N12 -> N13 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N14 -> N15 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#BDAFA8" penwidth=1.5 style=dashed label="financial_advises" dir=forward]
+	N16 -> N17 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N17 -> N18 [color="#000000" penwidth=1.5 style=dashed label="players_scouts" dir=forward]
+	N18 -> N19 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N19 -> N20 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N18 -> nest0_0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> N4 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	nest1_0 -> nest1_1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N15 -> nest1_0 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> S0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S0 -> N10 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N7 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	S0 -> N16 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M0 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M0 [color="#03A9F4" penwidth=1.5 style=solid label="tournaments_hosts" dir=forward]
+	N3 -> M0 [color="#A2D0FF" penwidth=1.5 style=dashed label="teams_forms" dir=forward]
+	N5 -> M0 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N12 [color="#03A9F4" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#03A9F4" penwidth=1.5 style=solid dir=forward]
+	N0 -> M2 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N1 -> M2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	M2 -> N5 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_356.txt b/test/diagrams/scanned_medium/diagrams_356.txt
new file mode 100644
index 0000000000000000000000000000000000000000..39ce9b22a86bab82da39cdceb89f835263280d08
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_356.txt
@@ -0,0 +1,37 @@
+<Audience Engagement, connectedTo, Game Strategy Development>
+<Broadcast Technology for Esports, connectedTo, Prize Pool Management>
+<Coaching Staff Management, connectedTo, Player Scouting>
+<Content Creation, connectedTo, Esports Team Ownership>
+<Content Creation, connectedTo, Player Contracts>
+<Esports Analytics, connectedTo, Esports Team Ownership>
+<Esports Analytics, connectedTo, Legal Advisory for Esports>
+<Esports Team Ownership, connectedTo, Coaching Staff Management>
+<Esports Team Ownership, connectedTo, Fan Community Building>
+<Esports Team Ownership, connectedTo, Game Strategy Development>
+<Esports Team Ownership, connectedTo, Rules and Regulations Enforcement>
+<Esports Team Ownership, connectedTo, Social Media Management>
+<Event Broadcasting, connectedTo, Broadcast Technology for Esports>
+<Event Broadcasting, financial_advises, Rules and Regulations Enforcement>
+<Fan Community Building, connectedTo, Coaching Staff Management>
+<Fan Community Building, streams, Team Management>
+<Game Strategy Development, connectedTo, League Management>
+<Gaming Hardware Optimization, connectedTo, Anti_Cheat Measures>
+<League Management, partners, Coaching Staff Management>
+<Legal Advisory for Esports, connectedTo, Content Creation>
+<Legal Advisory for Esports, connectedTo, Esports Team Ownership>
+<Live Streaming Production, connectedTo, Talent Representation>
+<Merchandise Sales, connectedTo, Esports Team Ownership>
+<Physical Conditioning for Players, connectedTo, Event Broadcasting>
+<Player Contracts, connectedTo, Esports Team Ownership>
+<Player Contracts, connectedTo, Merchandise Sales>
+<Player Contracts, teams_forms, Coaching Staff Management>
+<Player Scouting, connectedTo, Physical Conditioning for Players>
+<Player Wellness Programs, players_scouts, Sponsorship Acquisition>
+<Prize Pool Management, connectedTo, League Management>
+<Rules and Regulations Enforcement, connectedTo, Player Wellness Programs>
+<Social Media Management, connectedTo, Fan Community Building>
+<Sponsorship Acquisition, connectedTo, Gaming Hardware Optimization>
+<Sponsorship Acquisition, connectedTo, Live Streaming Production>
+<Talent Representation, connectedTo, Merchandise Sales>
+<Team Management, connectedTo, Audience Engagement>
+<Team Management, tournaments_hosts, Coaching Staff Management>
diff --git a/test/diagrams/scanned_medium/diagrams_357.dot b/test/diagrams/scanned_medium/diagrams_357.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0a61c869c56bd690665a5b2a33d5f38356f9b162
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_357.dot
@@ -0,0 +1,74 @@
+digraph {
+	rankdir=BT
+	N0 [label="Spike Train Analysis" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N1 [label="Consciousness Studies" color="#D3EB9F" fillcolor="#F8FDD3" shape=document style=filled]
+	N2 [label="Neurotransmitter Research" color="#FFEB3B" fillcolor="#FFF9C4" shape=box style=filled]
+	N3 [label="Optogenetics" color="#66BB6A" fillcolor="#E8F5E9" shape=database style=filled]
+	N4 [label="Brain Mapping" color="#D3EB9F" fillcolor="#F8FDD3" shape=rect style=filled]
+	N5 [label="Motor Control Research" color="#FFEB3B" fillcolor="#FFF9C4" shape=parallelogram style=filled]
+	N6 [label="Sleep Research" color="#FFEB3B" fillcolor="#FFF9C4" shape=predefinedprocess style=filled]
+	N7 [label="Brain_Computer Interface" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	N8 [label="Stem Cell Research" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N9 [label="Neuroethics" color="#66BB6A" fillcolor="#E8F5E9" shape=rect style=filled]
+	N10 [label="Neural Network Analysis" color="#FFEB3B" fillcolor="#FFF9C4" shape=rectangle style=filled]
+	N11 [label="Systems Neuroscience" color="#FFEB3B" fillcolor="#FFF9C4" shape=multipledocuments style=filled]
+	N12 [label="Artificial Neural Networks Modeling" color="#FFEB3B" fillcolor="#FFF9C4" shape=hexagon style=filled]
+	N13 [label="Connectomics" color="#D3EB9F" fillcolor="#F8FDD3" shape=hexagon style=filled]
+	S0 [label="" color="#66BB6A" fillcolor="#E8F5E9" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	S2 [label="" color="#FFEB3B" fillcolor="#FFF9C4" 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]
+	M2 [label="" color="#D3EB9F" fillcolor="#F8FDD3" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_Synaptic Plasticity Study {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Synaptic Plasticity Study"
+		nest0_0 [label="Developmental Neuroscience" color="#D3EB9F" fillcolor="#F8FDD3" shape=diamond style=filled]
+		nest0_1 [label="Neural Data Analysis" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	}
+	subgraph cluster_Behavioral Neuroscience {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Behavioral Neuroscience"
+		nest1_0 [label="Computational Neuroscience" color="#66BB6A" fillcolor="#E8F5E9" shape=multipledocuments style=filled]
+		nest1_1 [label="Electrophysiology" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+		nest1_2 [label="Brain Imaging" color="#66BB6A" fillcolor="#E8F5E9" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed label="treats_disorders" dir=forward]
+	N9 -> N10 [color="#D3EB9F" penwidth=1.5 style=dashed label="processes_data" dir=forward]
+	N10 -> N11 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N11 -> nest0_0 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N5 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	nest1_1 -> nest1_2 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest1_0 [color="#D3EB9F" penwidth=1.5 style=dashed label="researches" dir=forward]
+	nest1_2 -> N9 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N7 -> S0 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N12 [color="#D3EB9F" penwidth=1.5 style=dashed label="ethical_considers" dir=forward]
+	S0 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> S2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N8 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	N1 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> M0 [color="#FFEB3B" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N9 [color="#FFEB3B" penwidth=1.5 style=solid dir=forward]
+	N6 -> M1 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N8 -> M1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M1 -> N10 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N7 -> M2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N0 -> M2 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	M2 -> N12 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_357.txt b/test/diagrams/scanned_medium/diagrams_357.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9960f6873e8ed7172a36b2940e3e506e0a64e094
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_357.txt
@@ -0,0 +1,32 @@
+<Artificial Neural Networks Modeling, connectedTo, Connectomics>
+<Brain Imaging, connectedTo, Neuroethics>
+<Brain Mapping, connectedTo, Brain_Computer Interface>
+<Brain Mapping, connectedTo, Motor Control Research>
+<Brain Mapping, connectedTo, Neuroethics>
+<Brain Mapping, connectedTo, Stem Cell Research>
+<Brain Mapping, connectedTo, Systems Neuroscience>
+<Brain_Computer Interface, connectedTo, Artificial Neural Networks Modeling>
+<Brain_Computer Interface, connectedTo, Neuroethics>
+<Brain_Computer Interface, connectedTo, Stem Cell Research>
+<Brain_Computer Interface, ethical_considers, Artificial Neural Networks Modeling>
+<Computational Neuroscience, connectedTo, Electrophysiology>
+<Consciousness Studies, connectedTo, Neuroethics>
+<Consciousness Studies, connectedTo, Neurotransmitter Research>
+<Developmental Neuroscience, connectedTo, Neural Data Analysis>
+<Electrophysiology, connectedTo, Brain Imaging>
+<Motor Control Research, connectedTo, Sleep Research>
+<Neural Data Analysis, connectedTo, Motor Control Research>
+<Neural Network Analysis, connectedTo, Systems Neuroscience>
+<Neuroethics, processes_data, Neural Network Analysis>
+<Neurotransmitter Research, connectedTo, Neuroethics>
+<Neurotransmitter Research, connectedTo, Optogenetics>
+<Neurotransmitter Research, researches, Computational Neuroscience>
+<Optogenetics, connectedTo, Brain Mapping>
+<Sleep Research, connectedTo, Brain_Computer Interface>
+<Sleep Research, connectedTo, Neural Network Analysis>
+<Spike Train Analysis, connectedTo, Artificial Neural Networks Modeling>
+<Spike Train Analysis, connectedTo, Consciousness Studies>
+<Stem Cell Research, connectedTo, Neural Network Analysis>
+<Stem Cell Research, treats_disorders, Neuroethics>
+<Systems Neuroscience, connectedTo, Artificial Neural Networks Modeling>
+<Systems Neuroscience, connectedTo, Developmental Neuroscience>
diff --git a/test/diagrams/scanned_medium/diagrams_358.txt b/test/diagrams/scanned_medium/diagrams_358.txt
new file mode 100644
index 0000000000000000000000000000000000000000..504085468f3fc795f0a25d298f8f1d940f3632fa
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_358.txt
@@ -0,0 +1,29 @@
+<3D Scanning of Artifacts, connectedTo, Digital Storytelling>
+<Cultural Tourism Development, connectedTo, Dating Techniques>
+<Cultural Tourism Development, connectedTo, Historical Research>
+<Dating Techniques, connectedTo, Oral History Collection>
+<Exhibition Curation, connectedTo, Risk Assessment for Heritage>
+<Heritage Site Management, connectedTo, Exhibition Curation>
+<Historical Research, connectedTo, 3D Scanning of Artifacts>
+<Historical Research, connectedTo, Dating Techniques>
+<Historical Research, connectedTo, Digital Storytelling>
+<Historical Research, connectedTo, Oral History Collection>
+<Historical Research, connectedTo, Restoration Techniques>
+<Historical Research, connectedTo, Risk Assessment for Heritage>
+<Historical Research, narrates, Repatriation of Artifacts>
+<Illicit Trafficking Control, connectedTo, Oral History Collection>
+<Legal Protection for Heritage, connectedTo, Cultural Tourism Development>
+<Legal Protection for Heritage, connectedTo, Dating Techniques>
+<Legal Protection for Heritage, connectedTo, Historical Research>
+<Oral History Collection, connectedTo, 3D Scanning of Artifacts>
+<Oral History Collection, connectedTo, Digital Storytelling>
+<Oral History Collection, connectedTo, Risk Assessment for Heritage>
+<Photogrammetry for Documentation, connectedTo, Dating Techniques>
+<Photogrammetry for Documentation, connectedTo, Historical Research>
+<Photogrammetry for Documentation, connectedTo, Legal Protection for Heritage>
+<Repatriation of Artifacts, analyzes_data, Heritage Site Management>
+<Restoration Techniques, connectedTo, 3D Scanning of Artifacts>
+<Restoration Techniques, connectedTo, Sustainable Heritage Management>
+<Risk Assessment for Heritage, artifacts_excavates, Restoration Techniques>
+<Site Preservation, connectedTo, Illicit Trafficking Control>
+<Sustainable Heritage Management, connectedTo, Site Preservation>
diff --git a/test/diagrams/scanned_medium/diagrams_359.dot b/test/diagrams/scanned_medium/diagrams_359.dot
new file mode 100644
index 0000000000000000000000000000000000000000..53d8d0b1a27b8c3080b68709dc7f75d84874b985
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_359.dot
@@ -0,0 +1,86 @@
+digraph {
+	rankdir=TB
+	N0 [label="Cell_Free Systems" color="#E57373" fillcolor="#FFEBEE" shape=predefinedprocess style=filled]
+	N1 [label="Bio_computation" color="#9FA9E1" fillcolor="#D6D9F0" shape=document style=filled]
+	N2 [label="Gene Synthesis Platforms" color="#9FA9E1" fillcolor="#D6D9F0" shape=parallelogram style=filled]
+	N3 [label="Regulatory Frameworks" color="#C2B2F0" fillcolor="#EFE6FF" shape=rect style=filled]
+	N4 [label="Biosensor Development" color="#C2B2F0" fillcolor="#EFE6FF" shape=rect style=filled]
+	N5 [label="High_Throughput Screening" color="#9FA9E1" fillcolor="#D6D9F0" shape=multipledocuments style=filled]
+	N6 [label="Novel Enzyme Creation" color="#E57373" fillcolor="#FFEBEE" shape=preparation style=filled]
+	N7 [label="Sustainable Chemical Production" color="#E57373" fillcolor="#FFEBEE" shape=action style=filled]
+	N8 [label="CRISPR_Cas System Optimization" color="#9FA9E1" fillcolor="#D6D9F0" shape=database style=filled]
+	N9 [label="Biofuel Production" color="#9FA9E1" fillcolor="#D6D9F0" shape=parallelogram style=filled]
+	N10 [label="Biofoundry Operations" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	N11 [label="DNA Storage Technologies" color="#C2B2F0" fillcolor="#EFE6FF" shape=preparation style=filled]
+	N12 [label="Bioremediation Applications" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N13 [label="Gene Therapy Delivery Systems" color="#C2B2F0" fillcolor="#EFE6FF" shape=vnode_shape style=filled]
+	N14 [label="Artificial Cells" color="#C2B2F0" fillcolor="#EFE6FF" shape=box style=filled]
+	N15 [label="Bio_logic Gates" color="#C2B2F0" fillcolor="#EFE6FF" shape=inputoutput style=filled]
+	N16 [label="Genome Engineering" color="#C2B2F0" fillcolor="#EFE6FF" shape=box 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]
+	S2 [label="" color="#E57373" fillcolor="#FFEBEE" 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="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M2 [label="" color="#9FA9E1" fillcolor="#D6D9F0" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	subgraph cluster_DNA Synthesis {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="DNA Synthesis"
+		nest0_0 [label="Vaccine Synthesis" color="#9FA9E1" fillcolor="#D6D9F0" shape=rectangle style=filled]
+		nest0_1 [label="Protein Design" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	}
+	subgraph cluster_Drug Delivery Systems {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Drug Delivery Systems"
+		nest1_0 [label="Modular Biology Design" color="#E57373" fillcolor="#FFEBEE" shape=predefinedprocess style=filled]
+		nest1_1 [label="Biocontainment Strategies" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+		nest1_2 [label="Genetic Circuit Design" color="#9FA9E1" fillcolor="#D6D9F0" shape=multipledocuments style=filled]
+		nest1_3 [label="Synthetic Organism Design" color="#C2B2F0" fillcolor="#EFE6FF" shape=box style=filled]
+	}
+	N0 -> N1 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#9FA9E1" penwidth=1.5 style=dashed label="ethical_considers" dir=forward]
+	N5 -> N6 [color="#C2B2F0" penwidth=1.5 style=solid label="synthesizes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N11 -> N12 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	N12 -> N13 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N13 -> N14 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N14 -> N15 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N15 -> N16 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	nest0_0 -> nest0_1 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N2 -> nest0_0 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	nest0_1 -> N13 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	nest1_0 -> nest1_1 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	nest1_1 -> nest1_2 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N15 -> nest1_0 [color="#C2B2F0" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N6 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S0 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N13 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N6 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N13 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	S1 -> N9 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N2 -> S2 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S2 -> N11 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	S2 -> N4 [color="#C2B2F0" penwidth=1.5 style=dashed dir=forward]
+	S2 -> N7 [color="#000000" penwidth=1.5 style=dashed label="DNA_sequences" dir=forward]
+	N5 -> M0 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	M0 -> N12 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N5 -> M1 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N9 -> M1 [color="#9FA9E1" penwidth=1.5 style=solid dir=forward]
+	N11 -> M1 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	M1 -> N13 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N9 -> M2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	M2 -> N13 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_359.txt b/test/diagrams/scanned_medium/diagrams_359.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a51fab2444f625d27f2fb6bf205e3cc9693a3d44
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_359.txt
@@ -0,0 +1,36 @@
+<Artificial Cells, connectedTo, Bio_logic Gates>
+<Bio_computation, connectedTo, Gene Synthesis Platforms>
+<Bio_logic Gates, connectedTo, Genome Engineering>
+<Bio_logic Gates, connectedTo, Modular Biology Design>
+<Biocontainment Strategies, connectedTo, Genetic Circuit Design>
+<Biofoundry Operations, connectedTo, DNA Storage Technologies>
+<Biofuel Production, connectedTo, Biofoundry Operations>
+<Biofuel Production, connectedTo, Gene Therapy Delivery Systems>
+<Bioremediation Applications, connectedTo, Gene Therapy Delivery Systems>
+<Biosensor Development, ethical_considers, High_Throughput Screening>
+<CRISPR_Cas System Optimization, connectedTo, Biofuel Production>
+<Cell_Free Systems, connectedTo, Bio_computation>
+<Cell_Free Systems, connectedTo, Bioremediation Applications>
+<DNA Storage Technologies, connectedTo, Bioremediation Applications>
+<DNA Storage Technologies, connectedTo, Gene Therapy Delivery Systems>
+<Gene Synthesis Platforms, DNA_sequences, Sustainable Chemical Production>
+<Gene Synthesis Platforms, connectedTo, Biosensor Development>
+<Gene Synthesis Platforms, connectedTo, DNA Storage Technologies>
+<Gene Synthesis Platforms, connectedTo, Gene Therapy Delivery Systems>
+<Gene Synthesis Platforms, connectedTo, Regulatory Frameworks>
+<Gene Synthesis Platforms, connectedTo, Sustainable Chemical Production>
+<Gene Synthesis Platforms, connectedTo, Vaccine Synthesis>
+<Gene Therapy Delivery Systems, connectedTo, Artificial Cells>
+<Genetic Circuit Design, connectedTo, Synthetic Organism Design>
+<High_Throughput Screening, connectedTo, Bioremediation Applications>
+<High_Throughput Screening, connectedTo, Gene Therapy Delivery Systems>
+<High_Throughput Screening, synthesizes, Novel Enzyme Creation>
+<Modular Biology Design, connectedTo, Biocontainment Strategies>
+<Novel Enzyme Creation, connectedTo, Biofuel Production>
+<Novel Enzyme Creation, connectedTo, Gene Therapy Delivery Systems>
+<Novel Enzyme Creation, connectedTo, Sustainable Chemical Production>
+<Protein Design, connectedTo, Gene Therapy Delivery Systems>
+<Regulatory Frameworks, connectedTo, Biosensor Development>
+<Sustainable Chemical Production, connectedTo, CRISPR_Cas System Optimization>
+<Synthetic Organism Design, connectedTo, Novel Enzyme Creation>
+<Vaccine Synthesis, connectedTo, Protein Design>
diff --git a/test/diagrams/scanned_medium/diagrams_36.dot b/test/diagrams/scanned_medium/diagrams_36.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0c1c2cc826f03f11f37c1a848db8b938ccd873cb
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_36.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=TB
+	N0 [label="Global Sourcing Strategy" color="#D3EB9F" fillcolor="#F8FDD3" shape=document style=filled]
+	N1 [label="Freight Auditing" color="#7E57C2" fillcolor="#D1C4E9" shape=action style=filled]
+	N2 [label="Customs Compliance" color="#7E57C2" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N3 [label="Reverse Logistics" color="#82DAFF" fillcolor="#C8EDFF" shape=vnode_shape style=filled]
+	N4 [label="Inventory Management" color="#82DAFF" fillcolor="#C8EDFF" shape=diamond style=filled]
+	N5 [label="Resilience Planning" color="#82DAFF" fillcolor="#C8EDFF" shape=vnode_shape style=filled]
+	N6 [label="Warehouse Automation" color="#D3EB9F" fillcolor="#F8FDD3" shape=parallelogram style=filled]
+	N7 [label="Performance Monitoring" color="#D3EB9F" fillcolor="#F8FDD3" shape=vnode_shape style=filled]
+	N8 [label="Material Flow Management" color="#7E57C2" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N9 [label="Warehousing" color="#D3EB9F" fillcolor="#F8FDD3" shape=diamond style=filled]
+	N10 [label="Demand Planning" color="#7E57C2" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N11 [label="Third_Party Logistics Management" color="#82DAFF" fillcolor="#C8EDFF" shape=predefinedprocess style=filled]
+	N0 -> N1 [color="#82DAFF" penwidth=1.5 style=dashed label="sources" dir=forward]
+	N1 -> N2 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="procures" dir=forward]
+	N3 -> N4 [color="#D3EB9F" 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="#7E57C2" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#D3EB9F" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="manages" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid label="plans" dir=forward]
+	N1 -> N10 [color="#82DAFF" penwidth=1.5 style=dashed label="stores" dir=forward]
+	N7 -> N4 [color="#D3EB9F" penwidth=1.5 style=dashed label="mitigates" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_36.txt b/test/diagrams/scanned_medium/diagrams_36.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b78b515017e8f5965cc272826b4777d4a9a5b8b7
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_36.txt
@@ -0,0 +1,13 @@
+<Customs Compliance, procures, Reverse Logistics>
+<Demand Planning, plans, Third_Party Logistics Management>
+<Freight Auditing, connectedTo, Customs Compliance>
+<Freight Auditing, stores, Demand Planning>
+<Global Sourcing Strategy, sources, Freight Auditing>
+<Inventory Management, connectedTo, Resilience Planning>
+<Material Flow Management, connectedTo, Warehousing>
+<Performance Monitoring, connectedTo, Material Flow Management>
+<Performance Monitoring, mitigates, Inventory Management>
+<Resilience Planning, connectedTo, Warehouse Automation>
+<Reverse Logistics, connectedTo, Inventory Management>
+<Warehouse Automation, connectedTo, Performance Monitoring>
+<Warehousing, manages, Demand Planning>
diff --git a/test/diagrams/scanned_medium/diagrams_360.dot b/test/diagrams/scanned_medium/diagrams_360.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8b8e67421155059ad81f22193e8a0d4f7bc1b7f9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_360.dot
@@ -0,0 +1,66 @@
+digraph {
+	rankdir=LR
+	N0 [label="Remote Learning Solutions" color="#90A4AE" fillcolor="#ECEFF1" shape=preparation style=filled]
+	N1 [label="Learning Design Principles" color="#90A4AE" fillcolor="#ECEFF1" shape=rectangle style=filled]
+	N2 [label="Badging and Certification Systems" color="#2196F3" fillcolor="#BBDEFB" shape=preparation style=filled]
+	N3 [label="E_Learning Platform Design" color="#2196F3" fillcolor="#BBDEFB" shape=diamond style=filled]
+	N4 [label="Formative Assessment Tools" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N5 [label="Data Privacy in Education" color="#BCB88A" fillcolor="#F5F5DC" shape=inputoutput style=filled]
+	N6 [label="Student Information Systems" color="#90A4AE" fillcolor="#ECEFF1" shape=multipledocuments style=filled]
+	S0 [label="" color="#BCB88A" fillcolor="#F5F5DC" 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]
+	M0 [label="" color="#BCB88A" fillcolor="#F5F5DC" shape=circle style=filled fixedsize=true height=0.1 width=0.1]
+	M1 [label="" color="#90A4AE" fillcolor="#ECEFF1" 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_Social_Emotional Learning Tools {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Social_Emotional Learning Tools"
+		nest0_0 [label="Massive Open Online Courses" color="#90A4AE" fillcolor="#ECEFF1" shape=predefinedprocess style=filled]
+		nest0_1 [label="Simulations for Learning" color="#90A4AE" fillcolor="#ECEFF1" shape=hexagon style=filled]
+		nest0_2 [label="Adaptive Learning Systems" color="#2196F3" fillcolor="#BBDEFB" shape=action style=filled]
+		nest0_3 [label="Blockchain for Educational Credentials" color="#90A4AE" fillcolor="#ECEFF1" shape=document style=filled]
+	}
+	subgraph cluster_Educational Data Mining {
+		style="rounded,filled,dashed"
+		color=gray50
+		label="Educational Data Mining"
+		nest1_0 [label="Digital Textbooks" color="#90A4AE" fillcolor="#ECEFF1" shape=parallelogram style=filled]
+		nest1_1 [label="Teacher Training Platforms" color="#BCB88A" fillcolor="#F5F5DC" shape=box style=filled]
+		nest1_2 [label="EdTech Hardware Solutions" color="#2196F3" fillcolor="#BBDEFB" shape=ellipse style=filled]
+		nest1_3 [label="AI in Education" color="#BCB88A" fillcolor="#F5F5DC" shape=inputoutput style=filled]
+	}
+	N0 -> N1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#BCB88A" penwidth=1.5 style=solid label="learning_gamifies" dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="assesses" dir=forward]
+	nest0_0 -> nest0_1 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	nest0_1 -> nest0_2 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest0_2 -> nest0_3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> nest0_0 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	nest0_3 -> N4 [color="#BCB88A" 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="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	nest1_2 -> nest1_3 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N5 -> nest1_0 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	nest1_3 -> N2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N1 -> S0 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	S0 -> N4 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N6 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	S0 -> N3 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	N3 -> S1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N6 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	S1 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N0 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> M0 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> M0 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	M0 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M1 [color="#2196F3" penwidth=1.5 style=solid label="implements" dir=forward]
+	N1 -> M1 [color="#BCB88A" penwidth=1.5 style=solid dir=forward]
+	M1 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> M2 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N2 -> M2 [color="#000000" penwidth=1.5 style=dashed label="develops" dir=forward]
+	M2 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_360.txt b/test/diagrams/scanned_medium/diagrams_360.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8bb88b517cc7dc4ad7f536890247c745af0ef8e5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_360.txt
@@ -0,0 +1,26 @@
+<AI in Education, connectedTo, Badging and Certification Systems>
+<Adaptive Learning Systems, connectedTo, Blockchain for Educational Credentials>
+<Badging and Certification Systems, connectedTo, Formative Assessment Tools>
+<Badging and Certification Systems, develops, Data Privacy in Education>
+<Badging and Certification Systems, learning_gamifies, E_Learning Platform Design>
+<Blockchain for Educational Credentials, connectedTo, Formative Assessment Tools>
+<Data Privacy in Education, assesses, Student Information Systems>
+<Data Privacy in Education, connectedTo, Digital Textbooks>
+<Digital Textbooks, connectedTo, Teacher Training Platforms>
+<E_Learning Platform Design, connectedTo, Data Privacy in Education>
+<E_Learning Platform Design, connectedTo, Formative Assessment Tools>
+<E_Learning Platform Design, connectedTo, Student Information Systems>
+<E_Learning Platform Design, implements, Data Privacy in Education>
+<EdTech Hardware Solutions, connectedTo, AI in Education>
+<Formative Assessment Tools, connectedTo, Data Privacy in Education>
+<Formative Assessment Tools, connectedTo, Massive Open Online Courses>
+<Learning Design Principles, connectedTo, Badging and Certification Systems>
+<Learning Design Principles, connectedTo, Data Privacy in Education>
+<Learning Design Principles, connectedTo, E_Learning Platform Design>
+<Learning Design Principles, connectedTo, Formative Assessment Tools>
+<Learning Design Principles, connectedTo, Student Information Systems>
+<Massive Open Online Courses, connectedTo, Simulations for Learning>
+<Remote Learning Solutions, connectedTo, Formative Assessment Tools>
+<Remote Learning Solutions, connectedTo, Learning Design Principles>
+<Simulations for Learning, connectedTo, Adaptive Learning Systems>
+<Teacher Training Platforms, connectedTo, EdTech Hardware Solutions>
diff --git a/test/diagrams/scanned_medium/diagrams_37.txt b/test/diagrams/scanned_medium/diagrams_37.txt
new file mode 100644
index 0000000000000000000000000000000000000000..daff039836e5d2c0656bc53bdabd0653ec695891
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_37.txt
@@ -0,0 +1,12 @@
+<Community Relations, operates, Water Management>
+<Core Logging, sells, Tailings Management>
+<Emergency Response Planning, connectedTo, Community Relations>
+<Emergency Response Planning, smelts, Exploration>
+<Equipment Maintenance, audits, Core Logging>
+<Exploration, connectedTo, Ventilation System>
+<Open Pit Mining Operations, connectedTo, Equipment Maintenance>
+<Ore Sorting, simulates, Smelting>
+<Smelting, repairs, Emergency Response Planning>
+<Tailings Management, connectedTo, Community Relations>
+<Water Management, complies, Emergency Response Planning>
+<Water Management, forecasts, Ore Sorting>
diff --git a/test/diagrams/scanned_medium/diagrams_38.dot b/test/diagrams/scanned_medium/diagrams_38.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c32bfe3f27aefe57120fa483476d66b2f8dc74e9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_38.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=BT
+	N0 [label="Marine Insurance" color="#FF8A65" fillcolor="#FBE9E7" shape=parallelogram style=filled]
+	N1 [label="Voyage Optimization" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N2 [label="Salvage Operations" color="#FF8A65" fillcolor="#FBE9E7" shape=ellipse style=filled]
+	N3 [label="Marine Research" color="#DCE775" fillcolor="#FCFCE7" shape=action style=filled]
+	N4 [label="Marine Safety Inspection" color="#DCE775" fillcolor="#FCFCE7" shape=action style=filled]
+	N5 [label="Vessel Chartering" color="#A1D7CD" fillcolor="#EDF5F3" shape=rect style=filled]
+	N6 [label="Marine Data Analytics" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+	N7 [label="Fisheries Management" color="#A1D7CD" fillcolor="#EDF5F3" shape=preparation style=filled]
+	N8 [label="Bunkering" color="#FF8A65" fillcolor="#FBE9E7" shape=vnode_shape style=filled]
+	N9 [label="Maritime Law Compliance" color="#A1D7CD" fillcolor="#EDF5F3" shape=database style=filled]
+	N10 [label="Pollution Control" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N11 [label="Container Tracking" color="#A1D7CD" fillcolor="#EDF5F3" shape=box style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="designs" dir=forward]
+	N1 -> N2 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#A1D7CD" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FF8A65" penwidth=1.5 style=solid label="conserves" dir=forward]
+	N5 -> N6 [color="#A1D7CD" penwidth=1.5 style=solid label="operates" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#A1D7CD" penwidth=1.5 style=solid label="systems" dir=forward]
+	N8 -> N9 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N10 -> N11 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N7 -> N4 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_38.txt b/test/diagrams/scanned_medium/diagrams_38.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ddc1543017fb9520edac3ea7044884c15c5bfb2c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_38.txt
@@ -0,0 +1,12 @@
+<Bunkering, connectedTo, Maritime Law Compliance>
+<Fisheries Management, connectedTo, Marine Safety Inspection>
+<Fisheries Management, systems, Bunkering>
+<Marine Data Analytics, connectedTo, Fisheries Management>
+<Marine Insurance, designs, Voyage Optimization>
+<Marine Research, connectedTo, Marine Safety Inspection>
+<Marine Safety Inspection, conserves, Vessel Chartering>
+<Maritime Law Compliance, optimizes, Pollution Control>
+<Pollution Control, connectedTo, Container Tracking>
+<Salvage Operations, connectedTo, Marine Research>
+<Vessel Chartering, operates, Marine Data Analytics>
+<Voyage Optimization, connectedTo, Salvage Operations>
diff --git a/test/diagrams/scanned_medium/diagrams_39.dot b/test/diagrams/scanned_medium/diagrams_39.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a786a6aeb9891d3726e5ee02c0635e7da4af2681
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_39.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=LR
+	N0 [label="Re_entry Vehicle Design" color="#92C79A" fillcolor="#E8F0EA" shape=hexagon style=filled]
+	N1 [label="Propellant Management" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+	N2 [label="Data Acquisition" color="#80DDEA" fillcolor="#D3F7F9" shape=action style=filled]
+	N3 [label="Microgravity Experiments" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+	N4 [label="Extravehicular Activity Planning" color="#92C79A" fillcolor="#E8F0EA" shape=action style=filled]
+	N5 [label="Mission Design" color="#80DDEA" fillcolor="#D3F7F9" shape=vnode_shape style=filled]
+	N6 [label="Exoplanet Discovery" color="#CD8FF2" fillcolor="#ECCFF5" shape=rect style=filled]
+	N7 [label="Mission Control Center Management" color="#92C79A" fillcolor="#E8F0EA" shape=rectangle style=filled]
+	N8 [label="Sample Return Missions" color="#CD8FF2" fillcolor="#ECCFF5" shape=ellipse style=filled]
+	N9 [label="Life Support Systems" color="#CD8FF2" fillcolor="#ECCFF5" shape=predefinedprocess style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="budgets" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#CD8FF2" penwidth=1.5 style=solid label="educates" dir=forward]
+	N3 -> N4 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#92C79A" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="simulates" dir=forward]
+	N7 -> N8 [color="#92C79A" penwidth=1.5 style=dashed label="inspires" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N7 -> N9 [color="#CD8FF2" penwidth=1.5 style=solid label="repairs" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_39.txt b/test/diagrams/scanned_medium/diagrams_39.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7e3a916faf264f36837b9b5bd40bc78e6ace3370
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_39.txt
@@ -0,0 +1,10 @@
+<Data Acquisition, educates, Microgravity Experiments>
+<Exoplanet Discovery, simulates, Mission Control Center Management>
+<Extravehicular Activity Planning, connectedTo, Mission Design>
+<Microgravity Experiments, connectedTo, Extravehicular Activity Planning>
+<Mission Control Center Management, inspires, Sample Return Missions>
+<Mission Control Center Management, repairs, Life Support Systems>
+<Mission Design, analyzes, Exoplanet Discovery>
+<Propellant Management, connectedTo, Data Acquisition>
+<Re_entry Vehicle Design, budgets, Propellant Management>
+<Sample Return Missions, connectedTo, Life Support Systems>
diff --git a/test/diagrams/scanned_medium/diagrams_4.dot b/test/diagrams/scanned_medium/diagrams_4.dot
new file mode 100644
index 0000000000000000000000000000000000000000..462069220566294c1748d22ff8a5591a01d90604
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_4.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=TB
+	N0 [label="Academic Review" color="#FF5722" fillcolor="#FFCCBC" shape=multipledocuments style=filled]
+	N1 [label="Club Registration" color="#9FA9E1" fillcolor="#D6D9F0" shape=rect style=filled]
+	N2 [label="Extracurricular Activity" color="#9FA9E1" fillcolor="#D6D9F0" shape=multipledocuments style=filled]
+	N3 [label="Parent_Teacher Conference" color="#64B5F6" fillcolor="#E3F2FD" shape=inputoutput style=filled]
+	N4 [label="Internship Coordination" color="#9FA9E1" fillcolor="#D6D9F0" shape=multipledocuments style=filled]
+	N5 [label="Timetable Scheduling" color="#FF5722" fillcolor="#FFCCBC" shape=action style=filled]
+	N6 [label="Study Abroad Program" color="#FF5722" fillcolor="#FFCCBC" shape=box style=filled]
+	N7 [label="Student Application" color="#FF5722" fillcolor="#FFCCBC" shape=diamond style=filled]
+	N8 [label="Result Declaration" color="#64B5F6" fillcolor="#E3F2FD" shape=database style=filled]
+	N9 [label="Alumni Network Management" color="#FF5722" fillcolor="#FFCCBC" shape=inputoutput style=filled]
+	N10 [label="Online Learning Platform Management" color="#64B5F6" fillcolor="#E3F2FD" shape=ellipse style=filled]
+	N11 [label="Disciplinary Action" color="#9FA9E1" fillcolor="#D6D9F0" shape=parallelogram style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FF5722" penwidth=1.5 style=solid label="learns" dir=forward]
+	N2 -> N3 [color="#FF5722" penwidth=1.5 style=dashed label="monitors" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="integrates" dir=forward]
+	N4 -> N5 [color="#9FA9E1" penwidth=1.5 style=solid label="licenses" dir=forward]
+	N5 -> N6 [color="#9FA9E1" penwidth=1.5 style=solid label="funds" dir=forward]
+	N6 -> N7 [color="#9FA9E1" penwidth=1.5 style=dashed label="trains" dir=forward]
+	N7 -> N8 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#64B5F6" penwidth=1.5 style=dashed label="evaluates" dir=forward]
+	N9 -> N10 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N0 [color="#64B5F6" penwidth=1.5 style=solid label="awards" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_4.txt b/test/diagrams/scanned_medium/diagrams_4.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6faa50087f9d8fa2d2cde37cb3b13ff774c3bec0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_4.txt
@@ -0,0 +1,12 @@
+<Academic Review, connectedTo, Club Registration>
+<Alumni Network Management, connectedTo, Online Learning Platform Management>
+<Club Registration, learns, Extracurricular Activity>
+<Extracurricular Activity, monitors, Parent_Teacher Conference>
+<Internship Coordination, licenses, Timetable Scheduling>
+<Online Learning Platform Management, connectedTo, Disciplinary Action>
+<Parent_Teacher Conference, integrates, Internship Coordination>
+<Result Declaration, awards, Academic Review>
+<Result Declaration, evaluates, Alumni Network Management>
+<Student Application, connectedTo, Result Declaration>
+<Study Abroad Program, trains, Student Application>
+<Timetable Scheduling, funds, Study Abroad Program>
diff --git a/test/diagrams/scanned_medium/diagrams_40.dot b/test/diagrams/scanned_medium/diagrams_40.dot
new file mode 100644
index 0000000000000000000000000000000000000000..4c07f54f36f53d99c23bcae6b9e4a61a50b1872e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_40.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=BT
+	N0 [label="Atmospheric Monitoring" color="#2196F3" fillcolor="#BBDEFB" shape=inputoutput style=filled]
+	N1 [label="Permafrost Thaw Assessment" color="#2196F3" fillcolor="#BBDEFB" shape=vnode_shape style=filled]
+	N2 [label="Satellite Data Interpretation" color="#2196F3" fillcolor="#BBDEFB" shape=parallelogram style=filled]
+	N3 [label="Ocean Current Analysis" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+	N4 [label="Public Engagement on Climate" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N5 [label="Biodiversity Impact Assessment" color="#BDAFA8" fillcolor="#E4E0DF" shape=rect style=filled]
+	N6 [label="Climate Change Vulnerability Assessment" color="#2196F3" fillcolor="#BBDEFB" shape=rect style=filled]
+	N7 [label="Paleoclimate Reconstruction" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+	N8 [label="Ecological Footprint Calculation" color="#BDAFA8" fillcolor="#E4E0DF" shape=rect style=filled]
+	N9 [label="Mitigation Technology Evaluation" color="#2196F3" fillcolor="#BBDEFB" shape=preparation style=filled]
+	N10 [label="Climate Impact Assessment" color="#BDAFA8" fillcolor="#E4E0DF" shape=action style=filled]
+	N11 [label="Climate Resilient Agriculture" color="#82DAFF" fillcolor="#C8EDFF" shape=rect style=filled]
+	N0 -> N1 [color="#82DAFF" penwidth=1.5 style=solid label="visualizes" dir=forward]
+	N1 -> N2 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=dashed label="adapts" dir=forward]
+	N4 -> N5 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="vulnerabilities" dir=forward]
+	N6 -> N7 [color="#BDAFA8" penwidth=1.5 style=solid label="impacts" 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="#000000" penwidth=1.5 style=dashed label="mitigates" dir=forward]
+	N10 -> N11 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N3 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_40.txt b/test/diagrams/scanned_medium/diagrams_40.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7b76aeeee1bcc1052e9ac545b221dff549b35e9c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_40.txt
@@ -0,0 +1,13 @@
+<Atmospheric Monitoring, visualizes, Permafrost Thaw Assessment>
+<Biodiversity Impact Assessment, vulnerabilities, Climate Change Vulnerability Assessment>
+<Climate Change Vulnerability Assessment, impacts, Paleoclimate Reconstruction>
+<Climate Impact Assessment, connectedTo, Climate Resilient Agriculture>
+<Ecological Footprint Calculation, connectedTo, Mitigation Technology Evaluation>
+<Ecological Footprint Calculation, connectedTo, Ocean Current Analysis>
+<Mitigation Technology Evaluation, mitigates, Climate Impact Assessment>
+<Ocean Current Analysis, adapts, Public Engagement on Climate>
+<Paleoclimate Reconstruction, connectedTo, Ecological Footprint Calculation>
+<Permafrost Thaw Assessment, connectedTo, Satellite Data Interpretation>
+<Public Engagement on Climate, connectedTo, Biodiversity Impact Assessment>
+<Satellite Data Interpretation, connectedTo, Ecological Footprint Calculation>
+<Satellite Data Interpretation, connectedTo, Ocean Current Analysis>
diff --git a/test/diagrams/scanned_medium/diagrams_41.dot b/test/diagrams/scanned_medium/diagrams_41.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ff379b9c2e6d3d98ae627ba6a75d6bbdf30794c1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_41.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=BT
+	N0 [label="Air Quality Forecasting" color="#6EB76D" fillcolor="#E9F7E8" shape=box style=filled]
+	N1 [label="Hurricane Trajectory Modeling" color="#FF8A65" fillcolor="#FBE9E7" shape=diamond style=filled]
+	N2 [label="Pollution Dispersion Modeling" color="#6EB76D" fillcolor="#E9F7E8" shape=document style=filled]
+	N3 [label="Tropical Cyclone Analysis" color="#6EB76D" fillcolor="#E9F7E8" shape=document style=filled]
+	N4 [label="Aviation Weather Briefing" color="#6EB76D" fillcolor="#E9F7E8" shape=document style=filled]
+	N5 [label="Mesoscale Meteorology" color="#BA68C8" fillcolor="#F3E5F5" shape=database style=filled]
+	N6 [label="Atmospheric Data Collection" color="#6EB76D" fillcolor="#E9F7E8" shape=vnode_shape style=filled]
+	N7 [label="Numerical Weather Prediction" color="#BA68C8" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N8 [label="Temperature Monitoring" color="#BA68C8" fillcolor="#F3E5F5" shape=inputoutput style=filled]
+	N9 [label="Satellite Meteorology" color="#FF8A65" fillcolor="#FBE9E7" shape=action style=filled]
+	N10 [label="Severe Weather Warning" color="#FF8A65" fillcolor="#FBE9E7" shape=multipledocuments style=filled]
+	N11 [label="Climate Change Impact Study" color="#BA68C8" fillcolor="#F3E5F5" shape=database style=filled]
+	N0 -> N1 [color="#6EB76D" penwidth=1.5 style=solid label="alerts" dir=forward]
+	N1 -> N2 [color="#6EB76D" penwidth=1.5 style=dashed label="observes" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="collects" dir=forward]
+	N3 -> N4 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#BA68C8" penwidth=1.5 style=solid label="advises" dir=forward]
+	N5 -> N6 [color="#6EB76D" penwidth=1.5 style=solid label="validates" dir=forward]
+	N6 -> N7 [color="#6EB76D" penwidth=1.5 style=dashed label="receives" dir=forward]
+	N7 -> N8 [color="#FF8A65" penwidth=1.5 style=dashed label="generates" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N10 [color="#6EB76D" penwidth=1.5 style=dashed label="warns" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_41.txt b/test/diagrams/scanned_medium/diagrams_41.txt
new file mode 100644
index 0000000000000000000000000000000000000000..183467d3f43f30e0bbbd10f99cdead0fba8b876d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_41.txt
@@ -0,0 +1,12 @@
+<Air Quality Forecasting, alerts, Hurricane Trajectory Modeling>
+<Atmospheric Data Collection, receives, Numerical Weather Prediction>
+<Aviation Weather Briefing, advises, Mesoscale Meteorology>
+<Aviation Weather Briefing, warns, Severe Weather Warning>
+<Hurricane Trajectory Modeling, observes, Pollution Dispersion Modeling>
+<Mesoscale Meteorology, validates, Atmospheric Data Collection>
+<Numerical Weather Prediction, generates, Temperature Monitoring>
+<Pollution Dispersion Modeling, collects, Tropical Cyclone Analysis>
+<Satellite Meteorology, connectedTo, Severe Weather Warning>
+<Severe Weather Warning, connectedTo, Climate Change Impact Study>
+<Temperature Monitoring, connectedTo, Satellite Meteorology>
+<Tropical Cyclone Analysis, connectedTo, Aviation Weather Briefing>
diff --git a/test/diagrams/scanned_medium/diagrams_42.dot b/test/diagrams/scanned_medium/diagrams_42.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8aa22e4edb4549f302483d0380aff6f4e9f1271c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_42.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=TB
+	N0 [label="Resource Recovery" color="#4DD0E1" fillcolor="#C9F0F0" shape=rect style=filled]
+	N1 [label="Waste Sorting" color="#FFC2C2" fillcolor="#FFEBEB" shape=preparation style=filled]
+	N2 [label="Waste Logistics Optimization" color="#FFC2C2" fillcolor="#FFEBEB" shape=document style=filled]
+	N3 [label="Extended Producer Responsibility" color="#CDDC39" fillcolor="#E6EE9C" shape=multipledocuments style=filled]
+	N4 [label="Waste Reduction Planning" color="#CDDC39" fillcolor="#E6EE9C" shape=rect style=filled]
+	N5 [label="Composting" color="#CDDC39" fillcolor="#E6EE9C" shape=action style=filled]
+	N6 [label="Waste Collection" color="#FFC2C2" fillcolor="#FFEBEB" shape=ellipse style=filled]
+	N7 [label="Illegal Dumping Monitoring" color="#FFC2C2" fillcolor="#FFEBEB" shape=hexagon style=filled]
+	N0 -> N1 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#CDDC39" penwidth=1.5 style=dashed label="reclaims" dir=forward]
+	N2 -> N3 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#4DD0E1" penwidth=1.5 style=solid label="reports" dir=forward]
+	N5 -> N6 [color="#CDDC39" penwidth=1.5 style=solid label="collects" dir=forward]
+	N6 -> N7 [color="#CDDC39" penwidth=1.5 style=solid label="converts" dir=forward]
+	N5 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_42.txt b/test/diagrams/scanned_medium/diagrams_42.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c25f039e893075af529bc5177651253a28af423c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_42.txt
@@ -0,0 +1,8 @@
+<Composting, collects, Waste Collection>
+<Composting, connectedTo, Waste Sorting>
+<Extended Producer Responsibility, connectedTo, Waste Reduction Planning>
+<Resource Recovery, connectedTo, Waste Sorting>
+<Waste Collection, converts, Illegal Dumping Monitoring>
+<Waste Logistics Optimization, connectedTo, Extended Producer Responsibility>
+<Waste Reduction Planning, reports, Composting>
+<Waste Sorting, reclaims, Waste Logistics Optimization>
diff --git a/test/diagrams/scanned_medium/diagrams_43.dot b/test/diagrams/scanned_medium/diagrams_43.dot
new file mode 100644
index 0000000000000000000000000000000000000000..243dec3f0d0925456b335fb6060f46b7d3be28cf
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_43.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=BT
+	N0 [label="Water Infrastructure Maintenance" color="#FBC02D" fillcolor="#FFFDE7" shape=hexagon style=filled]
+	N1 [label="Flood Control" color="#66BB6A" fillcolor="#E8F5E9" shape=vnode_shape style=filled]
+	N2 [label="Water Treatment" color="#E91E63" fillcolor="#FCE4EC" shape=document style=filled]
+	N3 [label="Water Resource Planning" color="#E91E63" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N4 [label="Transboundary Water Management" color="#FBC02D" fillcolor="#FFFDE7" shape=ellipse style=filled]
+	N5 [label="Wastewater Collection" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N6 [label="Rainwater Harvesting" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N7 [label="Agricultural Water Use Efficiency" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N8 [label="Water Distribution" color="#E91E63" fillcolor="#FCE4EC" shape=predefinedprocess style=filled]
+	N9 [label="Drinking Water Standards Compliance" color="#66BB6A" fillcolor="#E8F5E9" shape=ellipse style=filled]
+	N10 [label="Water Scarcity Mitigation" color="#E91E63" fillcolor="#FCE4EC" shape=rect style=filled]
+	N11 [label="Water Loss Detection" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N0 -> N1 [color="#66BB6A" penwidth=1.5 style=dashed label="permits" dir=forward]
+	N1 -> N2 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#FBC02D" penwidth=1.5 style=dashed label="analyzes" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#E91E63" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N8 -> N9 [color="#66BB6A" penwidth=1.5 style=solid label="conserves" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed label="purifies" dir=forward]
+	N10 -> N11 [color="#66BB6A" penwidth=1.5 style=dashed label="recycles" dir=forward]
+	N8 -> N2 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_43.txt b/test/diagrams/scanned_medium/diagrams_43.txt
new file mode 100644
index 0000000000000000000000000000000000000000..84dba8ed5e51b77171ce6b52ee1b56857abdbc3b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_43.txt
@@ -0,0 +1,12 @@
+<Agricultural Water Use Efficiency, optimizes, Water Distribution>
+<Drinking Water Standards Compliance, purifies, Water Scarcity Mitigation>
+<Flood Control, connectedTo, Water Treatment>
+<Rainwater Harvesting, connectedTo, Agricultural Water Use Efficiency>
+<Transboundary Water Management, connectedTo, Wastewater Collection>
+<Wastewater Collection, analyzes, Rainwater Harvesting>
+<Water Distribution, connectedTo, Water Treatment>
+<Water Distribution, conserves, Drinking Water Standards Compliance>
+<Water Infrastructure Maintenance, permits, Flood Control>
+<Water Resource Planning, connectedTo, Transboundary Water Management>
+<Water Scarcity Mitigation, recycles, Water Loss Detection>
+<Water Treatment, connectedTo, Water Resource Planning>
diff --git a/test/diagrams/scanned_medium/diagrams_44.dot b/test/diagrams/scanned_medium/diagrams_44.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0c2df14a14c16fc1c6df716e4dd739e8c6312c28
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_44.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=BT
+	N0 [label="Battery Recycling" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N1 [label="Composting Organic Waste" color="#673AB7" fillcolor="#D1C4E9" shape=multipledocuments style=filled]
+	N2 [label="Material Collection" color="#F7BEE0" fillcolor="#FAEBF3" shape=rectangle style=filled]
+	N3 [label="New Product Manufacturing" color="#673AB7" fillcolor="#D1C4E9" shape=document style=filled]
+	N4 [label="Plastic Recycling" color="#673AB7" fillcolor="#D1C4E9" shape=inputoutput style=filled]
+	N5 [label="Recycling Education" color="#80DDEA" fillcolor="#D3F7F9" shape=ellipse style=filled]
+	N6 [label="Cleaning and Processing" color="#673AB7" fillcolor="#D1C4E9" shape=database style=filled]
+	N7 [label="Hazardous Material Recovery" color="#80DDEA" fillcolor="#D3F7F9" shape=box style=filled]
+	N0 -> N1 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#673AB7" penwidth=1.5 style=dashed label="converts" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#80DDEA" penwidth=1.5 style=solid label="grades" dir=forward]
+	N5 -> N6 [color="#F7BEE0" penwidth=1.5 style=dashed label="designs" dir=forward]
+	N6 -> N7 [color="#673AB7" penwidth=1.5 style=solid label="subsidizes" dir=forward]
+	N2 -> N7 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N5 [color="#000000" penwidth=1.5 style=solid label="processes" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_44.txt b/test/diagrams/scanned_medium/diagrams_44.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1d0b9e1fdef003780516841b95dc7816e4b2aa20
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_44.txt
@@ -0,0 +1,9 @@
+<Battery Recycling, connectedTo, Composting Organic Waste>
+<Cleaning and Processing, subsidizes, Hazardous Material Recovery>
+<Composting Organic Waste, converts, Material Collection>
+<Material Collection, connectedTo, Hazardous Material Recovery>
+<Material Collection, optimizes, New Product Manufacturing>
+<Material Collection, processes, Recycling Education>
+<New Product Manufacturing, connectedTo, Plastic Recycling>
+<Plastic Recycling, grades, Recycling Education>
+<Recycling Education, designs, Cleaning and Processing>
diff --git a/test/diagrams/scanned_medium/diagrams_45.dot b/test/diagrams/scanned_medium/diagrams_45.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f421ff74e5129cfbf6da6c1e3fba0f088ed36cc8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_45.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=LR
+	N0 [label="Indigenous Forestry Practices" color="#795548" fillcolor="#D7CCC8" shape=multipledocuments style=filled]
+	N1 [label="Forestry Policy Development" color="#795548" fillcolor="#D7CCC8" shape=hexagon style=filled]
+	N2 [label="Drone Surveying for Forests" color="#4CAF50" fillcolor="#C8E6C9" shape=diamond style=filled]
+	N3 [label="Forest Road Construction" color="#94C0C0" fillcolor="#CADEDE" shape=rectangle style=filled]
+	N4 [label="Wood Product Manufacturing" color="#94C0C0" fillcolor="#CADEDE" shape=rectangle style=filled]
+	N5 [label="Recreation Management" color="#94C0C0" fillcolor="#CADEDE" shape=rectangle style=filled]
+	N6 [label="Climate Change Adaptation in Forests" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N7 [label="Logging Operations" color="#4CAF50" fillcolor="#C8E6C9" shape=multipledocuments style=filled]
+	N8 [label="Forest Health Monitoring" color="#4CAF50" fillcolor="#C8E6C9" shape=rectangle style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="grades" dir=forward]
+	N4 -> N5 [color="#4CAF50" penwidth=1.5 style=dashed label="conserves" dir=forward]
+	N5 -> N6 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#94C0C0" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#4CAF50" penwidth=1.5 style=solid label="regulates" dir=forward]
+	N1 -> N7 [color="#000000" penwidth=1.5 style=dashed label="prevents" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_45.txt b/test/diagrams/scanned_medium/diagrams_45.txt
new file mode 100644
index 0000000000000000000000000000000000000000..37807ec7cf73fa7c94733ddd724d0df00d2c68d9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_45.txt
@@ -0,0 +1,9 @@
+<Climate Change Adaptation in Forests, connectedTo, Logging Operations>
+<Drone Surveying for Forests, connectedTo, Forest Road Construction>
+<Forest Road Construction, grades, Wood Product Manufacturing>
+<Forestry Policy Development, connectedTo, Drone Surveying for Forests>
+<Forestry Policy Development, prevents, Logging Operations>
+<Indigenous Forestry Practices, connectedTo, Forestry Policy Development>
+<Logging Operations, regulates, Forest Health Monitoring>
+<Recreation Management, connectedTo, Climate Change Adaptation in Forests>
+<Wood Product Manufacturing, conserves, Recreation Management>
diff --git a/test/diagrams/scanned_medium/diagrams_46.dot b/test/diagrams/scanned_medium/diagrams_46.dot
new file mode 100644
index 0000000000000000000000000000000000000000..089b575229c0a1ef60be8511cff6324e204bbcb8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_46.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=LR
+	N0 [label="Pharmacy Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=predefinedprocess style=filled]
+	N1 [label="Sterilization Protocols" color="#CB9BE1" fillcolor="#F2E6F5" shape=vnode_shape style=filled]
+	N2 [label="Medical Treatment" color="#795548" fillcolor="#D7CCC8" shape=predefinedprocess style=filled]
+	N3 [label="Medical Record Keeping" color="#DCE775" fillcolor="#F9FBE7" shape=multipledocuments style=filled]
+	N4 [label="Anesthesia Administration" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N5 [label="Hospice Care for Animals" color="#DCE775" fillcolor="#F9FBE7" shape=ellipse style=filled]
+	N6 [label="Public Health Vet Services" color="#DCE775" fillcolor="#F9FBE7" shape=rect style=filled]
+	N7 [label="Livestock Disease Prevention" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+	N8 [label="Farm Animal Health Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=multipledocuments style=filled]
+	N9 [label="Surgery" color="#DCE775" fillcolor="#F9FBE7" shape=preparation style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#795548" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#795548" penwidth=1.5 style=dashed label="treats" dir=forward]
+	N3 -> N4 [color="#DCE775" penwidth=1.5 style=solid label="operates" dir=forward]
+	N4 -> N5 [color="#CB9BE1" penwidth=1.5 style=dashed label="inspects" dir=forward]
+	N5 -> N6 [color="#795548" penwidth=1.5 style=dashed label="consults" dir=forward]
+	N6 -> N7 [color="#CB9BE1" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#795548" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed label="consults" dir=forward]
+	N5 -> N7 [color="#795548" penwidth=1.5 style=solid label="dispenses" dir=forward]
+	N2 -> N5 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_46.txt b/test/diagrams/scanned_medium/diagrams_46.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f91ce807ea495a1d6d6ac7a78554b75500599b07
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_46.txt
@@ -0,0 +1,11 @@
+<Anesthesia Administration, inspects, Hospice Care for Animals>
+<Farm Animal Health Management, consults, Surgery>
+<Hospice Care for Animals, consults, Public Health Vet Services>
+<Hospice Care for Animals, dispenses, Livestock Disease Prevention>
+<Livestock Disease Prevention, connectedTo, Farm Animal Health Management>
+<Medical Record Keeping, operates, Anesthesia Administration>
+<Medical Treatment, connectedTo, Hospice Care for Animals>
+<Medical Treatment, treats, Medical Record Keeping>
+<Pharmacy Management, connectedTo, Sterilization Protocols>
+<Public Health Vet Services, connectedTo, Livestock Disease Prevention>
+<Sterilization Protocols, connectedTo, Medical Treatment>
diff --git a/test/diagrams/scanned_medium/diagrams_47.dot b/test/diagrams/scanned_medium/diagrams_47.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fa7c6f9bfd095f0a901c9b46a12dc0d21b4bbb69
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_47.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=RL
+	N0 [label="Child Development Assessment" color="#82DAFF" fillcolor="#C8EDFF" shape=hexagon style=filled]
+	N1 [label="Outdoor Play Supervision" color="#82DAFF" fillcolor="#C8EDFF" shape=inputoutput style=filled]
+	N2 [label="Child Protection Policies" color="#82DAFF" fillcolor="#C8EDFF" shape=rect style=filled]
+	N3 [label="Emergency Evacuation Drills" color="#82DAFF" fillcolor="#C8EDFF" shape=preparation style=filled]
+	N4 [label="Child Psychology Application" color="#FFC085" fillcolor="#FFDAB9" shape=parallelogram style=filled]
+	N5 [label="First Aid Administration" color="#C0CA33" fillcolor="#F9FBE7" shape=document style=filled]
+	N6 [label="Behavior Management" color="#FFC085" fillcolor="#FFDAB9" shape=multipledocuments style=filled]
+	N7 [label="Field Trip Organization" color="#82DAFF" fillcolor="#C8EDFF" shape=predefinedprocess style=filled]
+	N8 [label="Diaper Changing" color="#C0CA33" fillcolor="#F9FBE7" shape=diamond style=filled]
+	N9 [label="Childcare Facility Licensing" color="#82DAFF" fillcolor="#C8EDFF" shape=preparation style=filled]
+	N0 -> N1 [color="#FFC085" penwidth=1.5 style=dashed label="develops" dir=forward]
+	N1 -> N2 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFC085" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#82DAFF" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#82DAFF" penwidth=1.5 style=dashed label="reports" dir=forward]
+	N6 -> N7 [color="#82DAFF" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#C0CA33" penwidth=1.5 style=solid label="teaches" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed label="educates" dir=forward]
+	N1 -> N5 [color="#82DAFF" penwidth=1.5 style=solid label="safeguards" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_47.txt b/test/diagrams/scanned_medium/diagrams_47.txt
new file mode 100644
index 0000000000000000000000000000000000000000..16ba6f91953f182e8884cd4df2d927104eea6218
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_47.txt
@@ -0,0 +1,10 @@
+<Behavior Management, connectedTo, Field Trip Organization>
+<Child Development Assessment, develops, Outdoor Play Supervision>
+<Child Protection Policies, connectedTo, Emergency Evacuation Drills>
+<Child Psychology Application, connectedTo, First Aid Administration>
+<Diaper Changing, educates, Childcare Facility Licensing>
+<Emergency Evacuation Drills, connectedTo, Child Psychology Application>
+<Field Trip Organization, teaches, Diaper Changing>
+<First Aid Administration, reports, Behavior Management>
+<Outdoor Play Supervision, connectedTo, Child Protection Policies>
+<Outdoor Play Supervision, safeguards, First Aid Administration>
diff --git a/test/diagrams/scanned_medium/diagrams_48.dot b/test/diagrams/scanned_medium/diagrams_48.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8e77e271b425361808d0ba23f3cd0a716ab8df6f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_48.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=TB
+	N0 [label="Chronic Disease Management" color="#CB9BE1" fillcolor="#F2E6F5" shape=preparation style=filled]
+	N1 [label="Social Engagement Activities" color="#D2D2D2" fillcolor="#F0F0F0" shape=rect style=filled]
+	N2 [label="Family Communication" color="#BA68C8" fillcolor="#F3E5F5" shape=rectangle style=filled]
+	N3 [label="Home Health Aide Services" color="#D2D2D2" fillcolor="#F0F0F0" shape=diamond style=filled]
+	N4 [label="Recreational Activities Planning" color="#BA68C8" fillcolor="#F3E5F5" shape=ellipse style=filled]
+	N5 [label="Physical Therapy" color="#BA68C8" fillcolor="#F3E5F5" shape=diamond style=filled]
+	N6 [label="Health Monitoring" color="#D2D2D2" fillcolor="#F0F0F0" shape=action style=filled]
+	N7 [label="Community Resource Connection" color="#D2D2D2" fillcolor="#F0F0F0" shape=database style=filled]
+	N8 [label="Emotional Support and Counseling" color="#D2D2D2" fillcolor="#F0F0F0" shape=predefinedprocess style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="personalizes" dir=forward]
+	N1 -> N2 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="bathes" dir=forward]
+	N4 -> N5 [color="#D2D2D2" penwidth=1.5 style=dashed label="cares for" dir=forward]
+	N5 -> N6 [color="#BA68C8" penwidth=1.5 style=solid label="administers" dir=forward]
+	N6 -> N7 [color="#CB9BE1" penwidth=1.5 style=solid label="coordinates" dir=forward]
+	N7 -> N8 [color="#BA68C8" penwidth=1.5 style=solid label="assesses" dir=forward]
+	N8 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_48.txt b/test/diagrams/scanned_medium/diagrams_48.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a52c398dc280eba1866918af5129764deb776b10
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_48.txt
@@ -0,0 +1,9 @@
+<Chronic Disease Management, personalizes, Social Engagement Activities>
+<Community Resource Connection, assesses, Emotional Support and Counseling>
+<Emotional Support and Counseling, connectedTo, Health Monitoring>
+<Family Communication, connectedTo, Home Health Aide Services>
+<Health Monitoring, coordinates, Community Resource Connection>
+<Home Health Aide Services, bathes, Recreational Activities Planning>
+<Physical Therapy, administers, Health Monitoring>
+<Recreational Activities Planning, cares for, Physical Therapy>
+<Social Engagement Activities, connectedTo, Family Communication>
diff --git a/test/diagrams/scanned_medium/diagrams_49.dot b/test/diagrams/scanned_medium/diagrams_49.dot
new file mode 100644
index 0000000000000000000000000000000000000000..24d9a7ed3ec9db2f162eb8e1de7c02c9e3927eee
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_49.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=LR
+	N0 [label="Medical Aid Deployment" color="#AED581" fillcolor="#F0F4C3" shape=hexagon style=filled]
+	N1 [label="Satellite Imagery Analysis" color="#F7BEE0" fillcolor="#FAEBF3" shape=database style=filled]
+	N2 [label="Communication Protocols" color="#BDBDBD" fillcolor="#F5F5F5" shape=parallelogram style=filled]
+	N3 [label="Shelter Management" color="#AED581" fillcolor="#F0F4C3" shape=predefinedprocess style=filled]
+	N4 [label="Emergency Planning" color="#AED581" fillcolor="#F0F4C3" shape=hexagon style=filled]
+	N5 [label="Search and Rescue Operations" color="#AED581" fillcolor="#F0F4C3" shape=preparation style=filled]
+	N6 [label="Emergency Drills and Exercises" color="#AED581" fillcolor="#F0F4C3" shape=hexagon style=filled]
+	N7 [label="Psychosocial Support" color="#AED581" fillcolor="#F0F4C3" shape=inputoutput style=filled]
+	N8 [label="Climate Change Adaptation for Disasters" color="#AED581" fillcolor="#F0F4C3" shape=predefinedprocess style=filled]
+	N9 [label="Debris Management" color="#BDBDBD" fillcolor="#F5F5F5" shape=diamond style=filled]
+	N0 -> N1 [color="#F7BEE0" penwidth=1.5 style=solid label="simulates" dir=forward]
+	N1 -> N2 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#BDBDBD" penwidth=1.5 style=solid label="rebuilds" dir=forward]
+	N3 -> N4 [color="#F7BEE0" penwidth=1.5 style=solid label="warns" dir=forward]
+	N4 -> N5 [color="#F7BEE0" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#AED581" penwidth=1.5 style=dashed label="evaluates" dir=forward]
+	N7 -> N8 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N9 [color="#000000" penwidth=1.5 style=dashed label="donates" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_49.txt b/test/diagrams/scanned_medium/diagrams_49.txt
new file mode 100644
index 0000000000000000000000000000000000000000..90235051a9f85b9cd81759263cf6d0e1ad6cc7e2
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_49.txt
@@ -0,0 +1,11 @@
+<Climate Change Adaptation for Disasters, connectedTo, Debris Management>
+<Communication Protocols, donates, Debris Management>
+<Communication Protocols, rebuilds, Shelter Management>
+<Emergency Drills and Exercises, evaluates, Psychosocial Support>
+<Emergency Planning, connectedTo, Search and Rescue Operations>
+<Medical Aid Deployment, simulates, Satellite Imagery Analysis>
+<Psychosocial Support, connectedTo, Climate Change Adaptation for Disasters>
+<Satellite Imagery Analysis, connectedTo, Communication Protocols>
+<Search and Rescue Operations, connectedTo, Emergency Drills and Exercises>
+<Search and Rescue Operations, connectedTo, Emergency Planning>
+<Shelter Management, warns, Emergency Planning>
diff --git a/test/diagrams/scanned_medium/diagrams_5.dot b/test/diagrams/scanned_medium/diagrams_5.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bb6fd149968df641754ee844959c971e05dc8a59
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_5.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=BT
+	N0 [label="Delivery Tracking" color="#FFD54F" fillcolor="#FFF8E1" shape=multipledocuments style=filled]
+	N1 [label="Loyalty Points" color="#4DB6AC" fillcolor="#E0F2F1" shape=document style=filled]
+	N2 [label="Payment" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N3 [label="Stock Replenishment" color="#4DB6AC" fillcolor="#E0F2F1" shape=document style=filled]
+	N4 [label="Refund Process" color="#4DB6AC" fillcolor="#E0F2F1" shape=box style=filled]
+	N5 [label="User Account Management" color="#4DB6AC" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	N6 [label="Package Return" color="#4DB6AC" fillcolor="#E0F2F1" shape=database style=filled]
+	N7 [label="Checkout" color="#9C27B0" fillcolor="#E1BEE7" shape=document style=filled]
+	N8 [label="Live Chat Support" color="#4DB6AC" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N9 [label="Payment Gateway Reconciliation" color="#FFD54F" fillcolor="#FFF8E1" shape=action style=filled]
+	N10 [label="Product Recommendation" color="#4DB6AC" fillcolor="#E0F2F1" shape=database style=filled]
+	N11 [label="Cart Abandonment" color="#4DB6AC" fillcolor="#E0F2F1" shape=rectangle style=filled]
+	N0 -> N1 [color="#9C27B0" penwidth=1.5 style=dashed label="pays" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#9C27B0" penwidth=1.5 style=solid label="personalizes" dir=forward]
+	N3 -> N4 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FFD54F" penwidth=1.5 style=solid label="adjusts" dir=forward]
+	N5 -> N6 [color="#FFD54F" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#9C27B0" penwidth=1.5 style=solid label="promotes" dir=forward]
+	N7 -> N8 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#4DB6AC" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#4DB6AC" penwidth=1.5 style=solid dir=forward]
+	N9 -> N4 [color="#FFD54F" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N0 -> N7 [color="#000000" penwidth=1.5 style=dashed label="compares" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_5.txt b/test/diagrams/scanned_medium/diagrams_5.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e66a776bd764f21507a49f66c60db2c1c31d4d96
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_5.txt
@@ -0,0 +1,13 @@
+<Checkout, connectedTo, Live Chat Support>
+<Delivery Tracking, compares, Checkout>
+<Delivery Tracking, pays, Loyalty Points>
+<Live Chat Support, connectedTo, Payment Gateway Reconciliation>
+<Loyalty Points, connectedTo, Payment>
+<Package Return, promotes, Checkout>
+<Payment, personalizes, Stock Replenishment>
+<Payment Gateway Reconciliation, connectedTo, Product Recommendation>
+<Payment Gateway Reconciliation, secures, Refund Process>
+<Product Recommendation, connectedTo, Cart Abandonment>
+<Refund Process, adjusts, User Account Management>
+<Stock Replenishment, connectedTo, Refund Process>
+<User Account Management, connectedTo, Package Return>
diff --git a/test/diagrams/scanned_medium/diagrams_50.dot b/test/diagrams/scanned_medium/diagrams_50.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bc6d7571b9afeaee762f62228ffad0796d5cf6b9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_50.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=BT
+	N0 [label="Defense Procurement" color="#388E3C" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N1 [label="Logistics Support" color="#F44336" fillcolor="#FFCDD2" shape=hexagon style=filled]
+	N2 [label="Basic Training" color="#F44336" fillcolor="#FFCDD2" shape=preparation style=filled]
+	N3 [label="Intelligence Gathering" color="#388E3C" fillcolor="#C8E6C9" shape=hexagon style=filled]
+	N4 [label="Rules of Engagement" color="#F44336" fillcolor="#FFCDD2" shape=inputoutput style=filled]
+	N5 [label="Personnel Management" color="#FFE470" fillcolor="#FFFAE0" shape=rect style=filled]
+	N6 [label="Civil_Military Cooperation" color="#388E3C" fillcolor="#C8E6C9" shape=vnode_shape style=filled]
+	N7 [label="Targeting" color="#FFE470" fillcolor="#FFFAE0" shape=ellipse style=filled]
+	N8 [label="Family Support Programs" color="#388E3C" fillcolor="#C8E6C9" shape=multipledocuments style=filled]
+	N9 [label="Counter_Insurgency Operations" color="#FFE470" fillcolor="#FFFAE0" shape=preparation style=filled]
+	N10 [label="Military Strategy Development" color="#FFE470" fillcolor="#FFFAE0" shape=box style=filled]
+	N11 [label="Military Law" color="#FFE470" fillcolor="#FFFAE0" shape=database style=filled]
+	N0 -> N1 [color="#FFE470" penwidth=1.5 style=solid label="secures" dir=forward]
+	N1 -> N2 [color="#388E3C" penwidth=1.5 style=dashed label="enforces" dir=forward]
+	N2 -> N3 [color="#388E3C" penwidth=1.5 style=dashed label="protects" dir=forward]
+	N3 -> N4 [color="#FFE470" penwidth=1.5 style=solid label="tests" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#F44336" 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 label="maintains" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid label="warns" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#FFE470" penwidth=1.5 style=dashed label="negotiates" dir=forward]
+	N9 -> N11 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N6 [color="#388E3C" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_50.txt b/test/diagrams/scanned_medium/diagrams_50.txt
new file mode 100644
index 0000000000000000000000000000000000000000..cb17de706b701c8db69792e60c4096d9423203cf
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_50.txt
@@ -0,0 +1,13 @@
+<Basic Training, protects, Intelligence Gathering>
+<Civil_Military Cooperation, connectedTo, Targeting>
+<Counter_Insurgency Operations, connectedTo, Military Law>
+<Counter_Insurgency Operations, connectedTo, Military Strategy Development>
+<Defense Procurement, secures, Logistics Support>
+<Family Support Programs, warns, Counter_Insurgency Operations>
+<Intelligence Gathering, tests, Rules of Engagement>
+<Logistics Support, enforces, Basic Training>
+<Military Strategy Development, negotiates, Military Law>
+<Personnel Management, connectedTo, Civil_Military Cooperation>
+<Rules of Engagement, connectedTo, Personnel Management>
+<Targeting, connectedTo, Civil_Military Cooperation>
+<Targeting, maintains, Family Support Programs>
diff --git a/test/diagrams/scanned_medium/diagrams_51.dot b/test/diagrams/scanned_medium/diagrams_51.dot
new file mode 100644
index 0000000000000000000000000000000000000000..085ea9c8e4f199e2e812e9844b51f96e1439cc2b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_51.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=LR
+	N0 [label="Engine Overhaul" color="#AED581" fillcolor="#F0F4C3" shape=database style=filled]
+	N1 [label="Flight Simulation" color="#80DDEA" fillcolor="#D3F7F9" shape=inputoutput style=filled]
+	N2 [label="Airworthiness Certification" color="#FFCC80" fillcolor="#FFF0CC" shape=inputoutput style=filled]
+	N3 [label="Passenger Check_in" color="#AED581" fillcolor="#F0F4C3" shape=action style=filled]
+	N4 [label="Airport Security Management" color="#AED581" fillcolor="#F0F4C3" shape=multipledocuments style=filled]
+	N5 [label="Aircraft Maintenance" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N6 [label="Navigation System Check" color="#80DDEA" fillcolor="#D3F7F9" shape=vnode_shape style=filled]
+	N7 [label="Avionics Repair" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+	N8 [label="Unmanned Aerial Vehicle Integration" color="#80DDEA" fillcolor="#D3F7F9" shape=box style=filled]
+	N9 [label="Next_Generation Air Traffic Management" color="#FFCC80" fillcolor="#FFF0CC" shape=database style=filled]
+	N0 -> N1 [color="#80DDEA" penwidth=1.5 style=dashed label="maintains" dir=forward]
+	N1 -> N2 [color="#80DDEA" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#AED581" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="repairs" dir=forward]
+	N5 -> N6 [color="#AED581" penwidth=1.5 style=solid label="checks" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N7 -> N8 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#FFCC80" penwidth=1.5 style=dashed label="flies" dir=forward]
+	N0 -> N5 [color="#80DDEA" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_51.txt b/test/diagrams/scanned_medium/diagrams_51.txt
new file mode 100644
index 0000000000000000000000000000000000000000..add68545837bea4c9bc7595ba53c0d8074b2f42a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_51.txt
@@ -0,0 +1,10 @@
+<Aircraft Maintenance, checks, Navigation System Check>
+<Airport Security Management, repairs, Aircraft Maintenance>
+<Airworthiness Certification, optimizes, Passenger Check_in>
+<Avionics Repair, connectedTo, Unmanned Aerial Vehicle Integration>
+<Engine Overhaul, connectedTo, Aircraft Maintenance>
+<Engine Overhaul, maintains, Flight Simulation>
+<Flight Simulation, connectedTo, Airworthiness Certification>
+<Navigation System Check, secures, Avionics Repair>
+<Passenger Check_in, connectedTo, Airport Security Management>
+<Unmanned Aerial Vehicle Integration, flies, Next_Generation Air Traffic Management>
diff --git a/test/diagrams/scanned_medium/diagrams_52.dot b/test/diagrams/scanned_medium/diagrams_52.dot
new file mode 100644
index 0000000000000000000000000000000000000000..713eb6e343265cae4bb89d858f761ad27c60cc38
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_52.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=BT
+	N0 [label="Real_Time Re_routing" color="#AED581" fillcolor="#F0F4C3" shape=rectangle style=filled]
+	N1 [label="Augmented Reality Navigation" color="#AED581" fillcolor="#F0F4C3" shape=rectangle style=filled]
+	N2 [label="Pedestrian Navigation" color="#E0E0E0" fillcolor="#EBEBEB" shape=action style=filled]
+	N3 [label="Digital Compass Integration" color="#E0E0E0" fillcolor="#EBEBEB" shape=database style=filled]
+	N4 [label="Cycle Route Planning" color="#5C6BC0" fillcolor="#E8EAF6" shape=document style=filled]
+	N5 [label="Waypoint Setting" color="#E0E0E0" fillcolor="#EBEBEB" shape=inputoutput style=filled]
+	N6 [label="Offline Map Support" color="#5C6BC0" fillcolor="#E8EAF6" shape=vnode_shape style=filled]
+	N7 [label="Map Display" color="#E0E0E0" fillcolor="#EBEBEB" shape=vnode_shape style=filled]
+	N8 [label="Celestial Navigation" color="#5C6BC0" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N9 [label="Hazard Alerts" color="#5C6BC0" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	N0 -> N1 [color="#E0E0E0" penwidth=1.5 style=solid label="avoids" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="maps" dir=forward]
+	N2 -> N3 [color="#5C6BC0" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="predicts" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="tracks" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="processes" dir=forward]
+	N7 -> N8 [color="#AED581" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#AED581" penwidth=1.5 style=solid label="displays" dir=forward]
+	N3 -> N7 [color="#AED581" penwidth=1.5 style=solid label="interprets" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_52.txt b/test/diagrams/scanned_medium/diagrams_52.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5215f7bc0fcdf807d94c64199950c3a9ab08f4f6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_52.txt
@@ -0,0 +1,10 @@
+<Augmented Reality Navigation, maps, Pedestrian Navigation>
+<Celestial Navigation, displays, Hazard Alerts>
+<Cycle Route Planning, predicts, Waypoint Setting>
+<Digital Compass Integration, connectedTo, Cycle Route Planning>
+<Digital Compass Integration, interprets, Map Display>
+<Map Display, connectedTo, Celestial Navigation>
+<Offline Map Support, processes, Map Display>
+<Pedestrian Navigation, connectedTo, Digital Compass Integration>
+<Real_Time Re_routing, avoids, Augmented Reality Navigation>
+<Waypoint Setting, tracks, Offline Map Support>
diff --git a/test/diagrams/scanned_medium/diagrams_53.dot b/test/diagrams/scanned_medium/diagrams_53.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f4b11b30fd0cab7b7b2c8ef7deab4c908925e86e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_53.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=TB
+	N0 [label="Printer Setup" color="#9575CD" fillcolor="#EDE7F6" shape=rect style=filled]
+	N1 [label="Distributed Manufacturing" color="#9575CD" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	N2 [label="4D Printing" color="#4DD0E1" fillcolor="#C9F0F0" shape=ellipse style=filled]
+	N3 [label="Digital Twin for 3D Prints" color="#A1D7CD" fillcolor="#EDF5F3" shape=box style=filled]
+	N4 [label="Stereolithography" color="#A1D7CD" fillcolor="#EDF5F3" shape=database style=filled]
+	N5 [label="Construction 3D Printing" color="#9575CD" fillcolor="#EDE7F6" shape=inputoutput style=filled]
+	N6 [label="Print Farm Management" color="#A1D7CD" fillcolor="#EDF5F3" shape=diamond style=filled]
+	N7 [label="Consumer Product Creation" color="#4DD0E1" fillcolor="#C9F0F0" shape=vnode_shape style=filled]
+	N8 [label="Multi_Material Printing" color="#9575CD" fillcolor="#EDE7F6" shape=diamond style=filled]
+	N9 [label="File Format Conversion" color="#4DD0E1" fillcolor="#C9F0F0" shape=parallelogram style=filled]
+	N0 -> N1 [color="#9575CD" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N1 -> N2 [color="#9575CD" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#A1D7CD" penwidth=1.5 style=solid label="integrates" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="tests" dir=forward]
+	N5 -> N6 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="produces" dir=forward]
+	N7 -> N8 [color="#A1D7CD" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed label="creates" dir=forward]
+	N8 -> N0 [color="#4DD0E1" penwidth=1.5 style=dashed label="controls" dir=forward]
+	N5 -> N4 [color="#4DD0E1" penwidth=1.5 style=dashed label="prints" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_53.txt b/test/diagrams/scanned_medium/diagrams_53.txt
new file mode 100644
index 0000000000000000000000000000000000000000..83ff46e35b14600c99070cfc467ee90c13faa620
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_53.txt
@@ -0,0 +1,11 @@
+<4D Printing, integrates, Digital Twin for 3D Prints>
+<Construction 3D Printing, connectedTo, Print Farm Management>
+<Construction 3D Printing, prints, Stereolithography>
+<Consumer Product Creation, connectedTo, Multi_Material Printing>
+<Digital Twin for 3D Prints, connectedTo, Stereolithography>
+<Distributed Manufacturing, connectedTo, 4D Printing>
+<Multi_Material Printing, controls, Printer Setup>
+<Multi_Material Printing, creates, File Format Conversion>
+<Print Farm Management, produces, Consumer Product Creation>
+<Printer Setup, secures, Distributed Manufacturing>
+<Stereolithography, tests, Construction 3D Printing>
diff --git a/test/diagrams/scanned_medium/diagrams_54.dot b/test/diagrams/scanned_medium/diagrams_54.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1d4a61c8db007c1e9983c2f3f5e8430c45c86d98
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_54.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=BT
+	N0 [label="Biosensors" color="#BDBDBD" fillcolor="#F5F5F5" shape=rect style=filled]
+	N1 [label="Food Packaging Improvement" color="#6EB76D" fillcolor="#E9F7E8" shape=predefinedprocess style=filled]
+	N2 [label="Graphene Production" color="#6EB76D" fillcolor="#E9F7E8" shape=database style=filled]
+	N3 [label="Nanoscale Imaging" color="#6EB76D" fillcolor="#E9F7E8" shape=document style=filled]
+	N4 [label="Energy Storage Applications" color="#6EB76D" fillcolor="#E9F7E8" shape=parallelogram style=filled]
+	N5 [label="Nanosensors" color="#BDBDBD" fillcolor="#F5F5F5" shape=parallelogram style=filled]
+	N6 [label="Transmission Electron Microscopy" color="#6EB76D" fillcolor="#E9F7E8" shape=preparation style=filled]
+	N7 [label="Nanodevice Fabrication" color="#FFEB3B" fillcolor="#FFF9C4" shape=preparation style=filled]
+	N8 [label="Scanning Electron Microscopy" color="#6EB76D" fillcolor="#E9F7E8" shape=multipledocuments style=filled]
+	N9 [label="Nanocomposites" color="#FFEB3B" fillcolor="#FFF9C4" shape=ellipse style=filled]
+	N10 [label="Solar Cell Efficiency Enhancement" color="#6EB76D" fillcolor="#E9F7E8" shape=database style=filled]
+	N11 [label="Bio_Nanotechnology Interface" color="#BDBDBD" fillcolor="#F5F5F5" shape=preparation style=filled]
+	N0 -> N1 [color="#BDBDBD" penwidth=1.5 style=dashed label="assembles" dir=forward]
+	N1 -> N2 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="measures" dir=forward]
+	N4 -> N5 [color="#6EB76D" penwidth=1.5 style=dashed label="filters" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="functionalizes" dir=forward]
+	N6 -> N7 [color="#FFEB3B" penwidth=1.5 style=dashed label="produces" dir=forward]
+	N7 -> N8 [color="#BDBDBD" penwidth=1.5 style=solid label="complies" dir=forward]
+	N8 -> N9 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#6EB76D" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N7 -> N10 [color="#BDBDBD" penwidth=1.5 style=solid label="tests" dir=forward]
+	N0 -> N7 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_54.txt b/test/diagrams/scanned_medium/diagrams_54.txt
new file mode 100644
index 0000000000000000000000000000000000000000..daee46ae45fd66dea1ff5dbc7c079b3ca0f16901
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_54.txt
@@ -0,0 +1,13 @@
+<Biosensors, assembles, Food Packaging Improvement>
+<Biosensors, connectedTo, Nanodevice Fabrication>
+<Energy Storage Applications, filters, Nanosensors>
+<Food Packaging Improvement, connectedTo, Graphene Production>
+<Graphene Production, connectedTo, Nanoscale Imaging>
+<Nanocomposites, connectedTo, Solar Cell Efficiency Enhancement>
+<Nanodevice Fabrication, complies, Scanning Electron Microscopy>
+<Nanodevice Fabrication, tests, Solar Cell Efficiency Enhancement>
+<Nanoscale Imaging, measures, Energy Storage Applications>
+<Nanosensors, functionalizes, Transmission Electron Microscopy>
+<Scanning Electron Microscopy, connectedTo, Nanocomposites>
+<Solar Cell Efficiency Enhancement, connectedTo, Bio_Nanotechnology Interface>
+<Transmission Electron Microscopy, produces, Nanodevice Fabrication>
diff --git a/test/diagrams/scanned_medium/diagrams_55.dot b/test/diagrams/scanned_medium/diagrams_55.dot
new file mode 100644
index 0000000000000000000000000000000000000000..6fabe23b84d1c56c7cc9805c7880489086e6d433
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_55.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=RL
+	N0 [label="Quantum Network Development" color="#FFF8A6" fillcolor="#FFFDE0" shape=hexagon style=filled]
+	N1 [label="Quantum Bit Design" color="#FFF8A6" fillcolor="#FFFDE0" shape=vnode_shape style=filled]
+	N2 [label="Quantum Error Correction" color="#94C0C0" fillcolor="#CADEDE" shape=box style=filled]
+	N3 [label="Quantum Simulation" color="#94C0C0" fillcolor="#CADEDE" shape=predefinedprocess style=filled]
+	N4 [label="Quantum Sensing" color="#94C0C0" fillcolor="#CADEDE" shape=database style=filled]
+	N5 [label="Quantum Computing Education" color="#FFF8A6" fillcolor="#FFFDE0" shape=inputoutput style=filled]
+	N6 [label="Quantum Circuit Design" color="#73C6BC" fillcolor="#D0EFEE" shape=ellipse style=filled]
+	N7 [label="Optimization Problems with Quantum Annealing" color="#FFF8A6" fillcolor="#FFFDE0" shape=rectangle style=filled]
+	N8 [label="Financial Modeling with Quantum Computing" color="#94C0C0" fillcolor="#CADEDE" shape=parallelogram style=filled]
+	N0 -> N1 [color="#73C6BC" penwidth=1.5 style=dashed label="entangles" dir=forward]
+	N1 -> N2 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#73C6BC" penwidth=1.5 style=solid label="shares" dir=forward]
+	N3 -> N4 [color="#94C0C0" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#94C0C0" penwidth=1.5 style=solid label="benchmarks" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FFF8A6" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#FFF8A6" penwidth=1.5 style=dashed label="transmits" dir=forward]
+	N6 -> N8 [color="#73C6BC" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_55.txt b/test/diagrams/scanned_medium/diagrams_55.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0cefb12da128014d60f4631f68e0c45a10364da8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_55.txt
@@ -0,0 +1,9 @@
+<Optimization Problems with Quantum Annealing, transmits, Financial Modeling with Quantum Computing>
+<Quantum Bit Design, connectedTo, Quantum Error Correction>
+<Quantum Circuit Design, connectedTo, Financial Modeling with Quantum Computing>
+<Quantum Circuit Design, connectedTo, Optimization Problems with Quantum Annealing>
+<Quantum Computing Education, connectedTo, Quantum Circuit Design>
+<Quantum Error Correction, shares, Quantum Simulation>
+<Quantum Network Development, entangles, Quantum Bit Design>
+<Quantum Sensing, benchmarks, Quantum Computing Education>
+<Quantum Simulation, connectedTo, Quantum Sensing>
diff --git a/test/diagrams/scanned_medium/diagrams_56.dot b/test/diagrams/scanned_medium/diagrams_56.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9dbf542ccf6f60d34da2d5f141f2307bfa1c1292
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_56.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=BT
+	N0 [label="Haptic Feedback Integration" color="#DCE775" fillcolor="#F9FBE7" shape=box style=filled]
+	N1 [label="Cloud_based AR or VR Rendering" color="#E91E63" fillcolor="#F8BBD0" shape=vnode_shape style=filled]
+	N2 [label="Gesture Recognition" color="#E91E63" fillcolor="#F8BBD0" shape=hexagon style=filled]
+	N3 [label="Spatial Audio Implementation" color="#E91E63" fillcolor="#F8BBD0" shape=multipledocuments style=filled]
+	N4 [label="Headset Development" color="#94C0C0" fillcolor="#CADEDE" shape=action style=filled]
+	N5 [label="Industrial Maintenance Support" color="#94C0C0" fillcolor="#CADEDE" shape=document style=filled]
+	N6 [label="Architectural Visualization" color="#94C0C0" fillcolor="#CADEDE" shape=predefinedprocess style=filled]
+	N7 [label="Data Visualization in AR or VR" color="#E91E63" fillcolor="#F8BBD0" shape=ellipse style=filled]
+	N8 [label="Retail Experience Enhancement" color="#E91E63" fillcolor="#F8BBD0" shape=box style=filled]
+	N9 [label="Medical Applications" color="#E91E63" fillcolor="#F8BBD0" shape=predefinedprocess style=filled]
+	N0 -> N1 [color="#E91E63" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="tests" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="audits" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N4 -> N5 [color="#E91E63" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#E91E63" penwidth=1.5 style=dashed label="controls" dir=forward]
+	N6 -> N7 [color="#E91E63" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#94C0C0" penwidth=1.5 style=solid label="tracks" dir=forward]
+	N8 -> N9 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_56.txt b/test/diagrams/scanned_medium/diagrams_56.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e48313500573e22828449750315ac43a88e5f1c6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_56.txt
@@ -0,0 +1,10 @@
+<Architectural Visualization, connectedTo, Data Visualization in AR or VR>
+<Cloud_based AR or VR Rendering, tests, Gesture Recognition>
+<Data Visualization in AR or VR, tracks, Retail Experience Enhancement>
+<Gesture Recognition, audits, Spatial Audio Implementation>
+<Haptic Feedback Integration, optimizes, Cloud_based AR or VR Rendering>
+<Headset Development, connectedTo, Gesture Recognition>
+<Headset Development, connectedTo, Industrial Maintenance Support>
+<Industrial Maintenance Support, controls, Architectural Visualization>
+<Retail Experience Enhancement, connectedTo, Medical Applications>
+<Spatial Audio Implementation, analyzes, Headset Development>
diff --git a/test/diagrams/scanned_medium/diagrams_57.dot b/test/diagrams/scanned_medium/diagrams_57.dot
new file mode 100644
index 0000000000000000000000000000000000000000..ce821ff734ba88a3edaffa927dad1398500042f5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_57.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=TB
+	N0 [label="Programming" color="#FFC2C2" fillcolor="#FFEBEB" shape=document style=filled]
+	N1 [label="Bug Fixing" color="#FFC2C2" fillcolor="#FFEBEB" shape=database style=filled]
+	N2 [label="Console Game Development" color="#607D8B" fillcolor="#CFD8DC" shape=vnode_shape style=filled]
+	N3 [label="Multiplayer Game Development" color="#FFC2C2" fillcolor="#FFEBEB" shape=multipledocuments style=filled]
+	N4 [label="Game Analytics" color="#607D8B" fillcolor="#CFD8DC" shape=parallelogram style=filled]
+	N5 [label="Network Code Optimization" color="#607D8B" fillcolor="#CFD8DC" shape=rectangle style=filled]
+	N6 [label="Game Design" color="#FFB2A5" fillcolor="#FFDCD6" shape=multipledocuments style=filled]
+	N7 [label="Level Design" color="#607D8B" fillcolor="#CFD8DC" shape=predefinedprocess style=filled]
+	N8 [label="Quality Assurance Testing" color="#FFB2A5" fillcolor="#FFDCD6" shape=action style=filled]
+	N9 [label="Game Performance Optimization" color="#FFC2C2" fillcolor="#FFEBEB" shape=preparation style=filled]
+	N10 [label="AI Behavior Programming" color="#FFB2A5" fillcolor="#FFDCD6" shape=ellipse style=filled]
+	N0 -> N1 [color="#FFB2A5" penwidth=1.5 style=dashed label="sounds" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFC2C2" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#607D8B" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFB2A5" penwidth=1.5 style=dashed label="communicates" dir=forward]
+	N5 -> N6 [color="#FFB2A5" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#FFB2A5" penwidth=1.5 style=solid label="designs" dir=forward]
+	N7 -> N8 [color="#FFC2C2" penwidth=1.5 style=dashed label="optimizes" dir=forward]
+	N8 -> N9 [color="#607D8B" penwidth=1.5 style=solid label="coaches" dir=forward]
+	N9 -> N10 [color="#607D8B" penwidth=1.5 style=solid dir=forward]
+	N2 -> N6 [color="#000000" penwidth=1.5 style=dashed label="markets" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_57.txt b/test/diagrams/scanned_medium/diagrams_57.txt
new file mode 100644
index 0000000000000000000000000000000000000000..21b701d90c2d8ec5dbfe5bfc11e9b58043626694
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_57.txt
@@ -0,0 +1,11 @@
+<Bug Fixing, connectedTo, Console Game Development>
+<Console Game Development, connectedTo, Multiplayer Game Development>
+<Console Game Development, markets, Game Design>
+<Game Analytics, communicates, Network Code Optimization>
+<Game Design, designs, Level Design>
+<Game Performance Optimization, connectedTo, AI Behavior Programming>
+<Level Design, optimizes, Quality Assurance Testing>
+<Multiplayer Game Development, connectedTo, Game Analytics>
+<Network Code Optimization, connectedTo, Game Design>
+<Programming, sounds, Bug Fixing>
+<Quality Assurance Testing, coaches, Game Performance Optimization>
diff --git a/test/diagrams/scanned_medium/diagrams_58.dot b/test/diagrams/scanned_medium/diagrams_58.dot
new file mode 100644
index 0000000000000000000000000000000000000000..e61c9bd8301275719dc645d8204ebeb5399e0199
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_58.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=BT
+	N0 [label="Record Label Operations" color="#61CAC3" fillcolor="#C2E8E6" shape=diamond style=filled]
+	N1 [label="Streaming Platform Management" color="#FFC085" fillcolor="#FFDAB9" shape=rect style=filled]
+	N2 [label="Sound System Design" color="#61CAC3" fillcolor="#C2E8E6" shape=hexagon style=filled]
+	N3 [label="Concert Promotion" color="#61CAC3" fillcolor="#C2E8E6" shape=multipledocuments style=filled]
+	N4 [label="Vocal Performance" color="#FFC085" fillcolor="#FFDAB9" shape=predefinedprocess style=filled]
+	N5 [label="Music for Film or TV or Games" color="#FFC085" fillcolor="#FFDAB9" shape=hexagon style=filled]
+	N6 [label="Sound Design for Media" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	N7 [label="Music Therapy" color="#FFC085" fillcolor="#FFDAB9" shape=rect style=filled]
+	N8 [label="Copyright Management" color="#EAEFA5" fillcolor="#FDFCEB" shape=vnode_shape style=filled]
+	N9 [label="Arrangement" color="#EAEFA5" fillcolor="#FDFCEB" shape=preparation style=filled]
+	N10 [label="Fan Engagement Strategy" color="#EAEFA5" fillcolor="#FDFCEB" shape=document style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="publishes" dir=forward]
+	N1 -> N2 [color="#EAEFA5" penwidth=1.5 style=solid label="analyzes" dir=forward]
+	N2 -> N3 [color="#EAEFA5" penwidth=1.5 style=solid label="critiques" dir=forward]
+	N3 -> N4 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="scores" dir=forward]
+	N5 -> N6 [color="#EAEFA5" penwidth=1.5 style=dashed label="generates" dir=forward]
+	N6 -> N7 [color="#61CAC3" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="masters" dir=forward]
+	N7 -> N9 [color="#FFC085" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_58.txt b/test/diagrams/scanned_medium/diagrams_58.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3ab3ed464fa84a14a45a9ce0856ee8468421cd87
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_58.txt
@@ -0,0 +1,11 @@
+<Arrangement, masters, Fan Engagement Strategy>
+<Concert Promotion, connectedTo, Vocal Performance>
+<Copyright Management, connectedTo, Arrangement>
+<Music Therapy, connectedTo, Arrangement>
+<Music Therapy, connectedTo, Copyright Management>
+<Music for Film or TV or Games, generates, Sound Design for Media>
+<Record Label Operations, publishes, Streaming Platform Management>
+<Sound Design for Media, connectedTo, Music Therapy>
+<Sound System Design, critiques, Concert Promotion>
+<Streaming Platform Management, analyzes, Sound System Design>
+<Vocal Performance, scores, Music for Film or TV or Games>
diff --git a/test/diagrams/scanned_medium/diagrams_59.dot b/test/diagrams/scanned_medium/diagrams_59.dot
new file mode 100644
index 0000000000000000000000000000000000000000..198285c8bbd2a01c9ea33847f3f2f876cc5a1097
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_59.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=BT
+	N0 [label="Stunt Coordination" color="#7986CB" fillcolor="#E8EAF6" shape=document style=filled]
+	N1 [label="Virtual Production Techniques" color="#7986CB" fillcolor="#E8EAF6" shape=parallelogram style=filled]
+	N2 [label="Pre_production Planning" color="#DCE775" fillcolor="#FCFCE7" shape=vnode_shape style=filled]
+	N3 [label="Sound Recording" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	N4 [label="Storyboarding" color="#A2D0FF" fillcolor="#E8F0FF" shape=vnode_shape style=filled]
+	N5 [label="Post_production Audio" color="#A2D0FF" fillcolor="#E8F0FF" shape=inputoutput style=filled]
+	N6 [label="Tax Incentive Management" color="#DCE775" fillcolor="#FCFCE7" shape=preparation style=filled]
+	N7 [label="Distribution Strategy" color="#7986CB" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N8 [label="Marketing and Publicity" color="#A2D0FF" fillcolor="#E8F0FF" shape=diamond style=filled]
+	N9 [label="Digital Asset Management" color="#7986CB" fillcolor="#E8EAF6" shape=document style=filled]
+	N0 -> N1 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#DCE775" penwidth=1.5 style=solid label="dresses" dir=forward]
+	N2 -> N3 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#A2D0FF" penwidth=1.5 style=solid label="color grades" dir=forward]
+	N4 -> N5 [color="#A2D0FF" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A2D0FF" penwidth=1.5 style=solid label="designs" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="secures" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="screens" dir=forward]
+	N8 -> N9 [color="#DCE775" penwidth=1.5 style=dashed label="uploads" dir=forward]
+	N9 -> N4 [color="#DCE775" penwidth=1.5 style=dashed label="lights" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_59.txt b/test/diagrams/scanned_medium/diagrams_59.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dd6a91647ea53e9ee8b94f632c63f50bb0ba65cc
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_59.txt
@@ -0,0 +1,10 @@
+<Digital Asset Management, lights, Storyboarding>
+<Distribution Strategy, screens, Marketing and Publicity>
+<Marketing and Publicity, uploads, Digital Asset Management>
+<Post_production Audio, designs, Tax Incentive Management>
+<Pre_production Planning, connectedTo, Sound Recording>
+<Sound Recording, color grades, Storyboarding>
+<Storyboarding, connectedTo, Post_production Audio>
+<Stunt Coordination, connectedTo, Virtual Production Techniques>
+<Tax Incentive Management, secures, Distribution Strategy>
+<Virtual Production Techniques, dresses, Pre_production Planning>
diff --git a/test/diagrams/scanned_medium/diagrams_6.dot b/test/diagrams/scanned_medium/diagrams_6.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9355a25da19e44ab9a10cdc76cb5308aab44bfd1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_6.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=TB
+	N0 [label="Parking Management" color="#FFE69C" fillcolor="#FFF9D4" shape=diamond style=filled]
+	N1 [label="Electric Vehicle Charging" color="#FFE69C" fillcolor="#FFF9D4" shape=inputoutput style=filled]
+	N2 [label="Passenger Feedback" color="#E57373" fillcolor="#FFEBEE" shape=diamond style=filled]
+	N3 [label="Train Dispatch" color="#FFE69C" fillcolor="#FFF9D4" shape=vnode_shape style=filled]
+	N4 [label="Navigation Update" color="#E57373" fillcolor="#FFEBEE" shape=hexagon style=filled]
+	N5 [label="Air Traffic Control" color="#FFE69C" fillcolor="#FFF9D4" shape=multipledocuments style=filled]
+	N6 [label="Intermodal Transfer" color="#AABEC6" fillcolor="#E0E6E9" shape=diamond style=filled]
+	N7 [label="Ride_sharing Request" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N0 -> N1 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#AABEC6" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N2 -> N3 [color="#E57373" penwidth=1.5 style=solid label="manages" dir=forward]
+	N3 -> N4 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#AABEC6" penwidth=1.5 style=solid label="diversifies" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="lands" dir=forward]
+	N6 -> N7 [color="#E57373" penwidth=1.5 style=solid label="tracks" dir=forward]
+	N3 -> N0 [color="#000000" penwidth=1.5 style=solid label="maintains" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_6.txt b/test/diagrams/scanned_medium/diagrams_6.txt
new file mode 100644
index 0000000000000000000000000000000000000000..eb5a6c9db9e409ce9f019f62699e8fe46f003002
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_6.txt
@@ -0,0 +1,8 @@
+<Air Traffic Control, lands, Intermodal Transfer>
+<Electric Vehicle Charging, secures, Passenger Feedback>
+<Intermodal Transfer, tracks, Ride_sharing Request>
+<Navigation Update, diversifies, Air Traffic Control>
+<Parking Management, connectedTo, Electric Vehicle Charging>
+<Passenger Feedback, manages, Train Dispatch>
+<Train Dispatch, connectedTo, Navigation Update>
+<Train Dispatch, maintains, Parking Management>
diff --git a/test/diagrams/scanned_medium/diagrams_60.dot b/test/diagrams/scanned_medium/diagrams_60.dot
new file mode 100644
index 0000000000000000000000000000000000000000..24adeb0c8fa9ee35807cf8843bde20ba9b9a834a
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_60.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=RL
+	N0 [label="Interactive Content Development" color="#80DDEA" fillcolor="#D3F7F9" shape=box style=filled]
+	N1 [label="Fact_Checking" color="#E0E0E0" fillcolor="#EBEBEB" shape=diamond style=filled]
+	N2 [label="Search Engine Optimization" color="#80DDEA" fillcolor="#D3F7F9" shape=diamond style=filled]
+	N3 [label="Content Localization" color="#E0E0E0" fillcolor="#EBEBEB" shape=multipledocuments style=filled]
+	N4 [label="Research and Outline" color="#80DDEA" fillcolor="#D3F7F9" shape=rectangle style=filled]
+	N5 [label="Interview Conduct" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N6 [label="Content Repurposing" color="#80DDEA" fillcolor="#D3F7F9" shape=hexagon style=filled]
+	N7 [label="Publishing" color="#FBC02D" fillcolor="#FFFDE7" shape=rect style=filled]
+	N0 -> N1 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#E0E0E0" penwidth=1.5 style=dashed label="translates" dir=forward]
+	N3 -> N4 [color="#80DDEA" penwidth=1.5 style=solid label="creates" dir=forward]
+	N4 -> N5 [color="#80DDEA" penwidth=1.5 style=solid label="narrates" dir=forward]
+	N5 -> N6 [color="#E0E0E0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#E0E0E0" penwidth=1.5 style=solid label="optimizes" dir=forward]
+	N2 -> N5 [color="#E0E0E0" penwidth=1.5 style=dashed label="films" dir=forward]
+	N6 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_60.txt b/test/diagrams/scanned_medium/diagrams_60.txt
new file mode 100644
index 0000000000000000000000000000000000000000..136a525370ded9e9f012fa62d877c3aeca2b3a6e
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_60.txt
@@ -0,0 +1,9 @@
+<Content Localization, creates, Research and Outline>
+<Content Repurposing, connectedTo, Interview Conduct>
+<Content Repurposing, optimizes, Publishing>
+<Fact_Checking, connectedTo, Search Engine Optimization>
+<Interactive Content Development, connectedTo, Fact_Checking>
+<Interview Conduct, connectedTo, Content Repurposing>
+<Research and Outline, narrates, Interview Conduct>
+<Search Engine Optimization, films, Interview Conduct>
+<Search Engine Optimization, translates, Content Localization>
diff --git a/test/diagrams/scanned_medium/diagrams_61.dot b/test/diagrams/scanned_medium/diagrams_61.dot
new file mode 100644
index 0000000000000000000000000000000000000000..12c4182cf971829c51856613644617c4dd3a3865
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_61.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=LR
+	N0 [label="Time Series Forecasting" color="#A2D0FF" fillcolor="#E8F0FF" shape=preparation style=filled]
+	N1 [label="Data Warehouse Design" color="#2196F3" fillcolor="#BBDEFB" shape=hexagon style=filled]
+	N2 [label="A or B Testing Analysis" color="#2196F3" fillcolor="#BBDEFB" shape=parallelogram style=filled]
+	N3 [label="Machine Learning Integration" color="#A2D0FF" fillcolor="#E8F0FF" shape=database style=filled]
+	N4 [label="Social Media Analytics" color="#2196F3" fillcolor="#BBDEFB" shape=inputoutput style=filled]
+	N5 [label="Operational Efficiency Metrics" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N6 [label="Prescriptive Analytics" color="#A2D0FF" fillcolor="#E8F0FF" shape=rectangle style=filled]
+	N7 [label="Sales Performance Analysis" color="#A2D0FF" fillcolor="#E8F0FF" shape=ellipse style=filled]
+	N8 [label="Exploratory Data Analysis" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N0 -> N1 [color="#A2D0FF" penwidth=1.5 style=dashed label="queries" dir=forward]
+	N1 -> N2 [color="#A2D0FF" penwidth=1.5 style=dashed label="develops" dir=forward]
+	N2 -> N3 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="supports" dir=forward]
+	N6 -> N7 [color="#2196F3" penwidth=1.5 style=dashed label="automates" dir=forward]
+	N7 -> N8 [color="#2196F3" penwidth=1.5 style=solid label="correlates" dir=forward]
+	N1 -> N5 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_61.txt b/test/diagrams/scanned_medium/diagrams_61.txt
new file mode 100644
index 0000000000000000000000000000000000000000..378126df910fc09f5dd53f3ff787ebd8d20eb9b3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_61.txt
@@ -0,0 +1,9 @@
+<A or B Testing Analysis, connectedTo, Machine Learning Integration>
+<Data Warehouse Design, connectedTo, Operational Efficiency Metrics>
+<Data Warehouse Design, develops, A or B Testing Analysis>
+<Machine Learning Integration, connectedTo, Social Media Analytics>
+<Operational Efficiency Metrics, supports, Prescriptive Analytics>
+<Prescriptive Analytics, automates, Sales Performance Analysis>
+<Sales Performance Analysis, correlates, Exploratory Data Analysis>
+<Social Media Analytics, connectedTo, Operational Efficiency Metrics>
+<Time Series Forecasting, queries, Data Warehouse Design>
diff --git a/test/diagrams/scanned_medium/diagrams_62.dot b/test/diagrams/scanned_medium/diagrams_62.dot
new file mode 100644
index 0000000000000000000000000000000000000000..a6d15ac1ed695f5659afdd6f98255aae857601a4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_62.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=BT
+	N0 [label="Cloud BI Solutions" color="#7E57C2" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N1 [label="OLAP Cube Creation" color="#5C6BC0" fillcolor="#E8EAF6" shape=preparation style=filled]
+	N2 [label="Risk Assessment Reporting" color="#7E57C2" fillcolor="#D1C4E9" shape=hexagon style=filled]
+	N3 [label="Prescriptive Analytics Implementation" color="#F06292" fillcolor="#FCE4EC" shape=preparation style=filled]
+	N4 [label="Business Process Improvement" color="#F06292" fillcolor="#FCE4EC" shape=database style=filled]
+	N5 [label="Query Optimization" color="#5C6BC0" fillcolor="#E8EAF6" shape=predefinedprocess style=filled]
+	N6 [label="Operational Efficiency Measurement" color="#5C6BC0" fillcolor="#E8EAF6" shape=box style=filled]
+	N7 [label="ETL Development" color="#F06292" fillcolor="#FCE4EC" shape=action style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="benchmarks" dir=forward]
+	N2 -> N3 [color="#F06292" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#F06292" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N4 -> N5 [color="#5C6BC0" penwidth=1.5 style=dashed label="OLAPs" dir=forward]
+	N5 -> N6 [color="#5C6BC0" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="dashboards" dir=forward]
+	N2 -> N6 [color="#5C6BC0" penwidth=1.5 style=solid label="plans" dir=forward]
+	N6 -> N1 [color="#000000" penwidth=1.5 style=dashed label="manages" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_62.txt b/test/diagrams/scanned_medium/diagrams_62.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d3b4ab25e90c1a830dbfb183898e9e469c01c1d5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_62.txt
@@ -0,0 +1,9 @@
+<Business Process Improvement, OLAPs, Query Optimization>
+<Cloud BI Solutions, connectedTo, OLAP Cube Creation>
+<OLAP Cube Creation, benchmarks, Risk Assessment Reporting>
+<Operational Efficiency Measurement, dashboards, ETL Development>
+<Operational Efficiency Measurement, manages, OLAP Cube Creation>
+<Prescriptive Analytics Implementation, secures, Business Process Improvement>
+<Query Optimization, connectedTo, Operational Efficiency Measurement>
+<Risk Assessment Reporting, connectedTo, Prescriptive Analytics Implementation>
+<Risk Assessment Reporting, plans, Operational Efficiency Measurement>
diff --git a/test/diagrams/scanned_medium/diagrams_63.txt b/test/diagrams/scanned_medium/diagrams_63.txt
new file mode 100644
index 0000000000000000000000000000000000000000..162135af9a84f2f07ce3b311b318ac201c13e106
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_63.txt
@@ -0,0 +1,11 @@
+<A or B Testing for Marketing, connectedTo, Loyalty Programs>
+<Affiliate Marketing, distributes products, Brand Strategy Development>
+<Brand Reputation Management, handles PR, Affiliate Marketing>
+<Brand Strategy Development, connectedTo, Remarketing Campaigns>
+<Brand Strategy Development, forms partnerships, Affiliate Marketing>
+<Conversion Rate Optimization, A or B tests, Pricing Strategy>
+<Guerilla Marketing, connectedTo, Mobile Marketing>
+<Marketing Automation, connectedTo, Brand Reputation Management>
+<Mobile Marketing, monitors competitors, Conversion Rate Optimization>
+<Pricing Strategy, connectedTo, A or B Testing for Marketing>
+<Remarketing Campaigns, connectedTo, Guerilla Marketing>
diff --git a/test/diagrams/scanned_medium/diagrams_64.dot b/test/diagrams/scanned_medium/diagrams_64.dot
new file mode 100644
index 0000000000000000000000000000000000000000..bd9078f85b1ceaa843536d23f019aa54911b3710
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_64.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=TB
+	N0 [label="Ad Analytics Reporting" color="#73C6BC" fillcolor="#D0EFEE" shape=rect style=filled]
+	N1 [label="Demographic Targeting" color="#7E57C2" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N2 [label="Television Advertising" color="#7E57C2" fillcolor="#D1C4E9" shape=database style=filled]
+	N3 [label="A or B Testing for Ads" color="#FF8A65" fillcolor="#FBE9E7" shape=parallelogram style=filled]
+	N4 [label="Programmatic Advertising" color="#7E57C2" fillcolor="#D1C4E9" shape=preparation style=filled]
+	N5 [label="Campaign Planning" color="#73C6BC" fillcolor="#D0EFEE" shape=box style=filled]
+	N6 [label="Budget Management" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N7 [label="Ad Placement Optimization" color="#FF8A65" fillcolor="#FBE9E7" shape=box style=filled]
+	N8 [label="Retargeting Campaigns" color="#7E57C2" fillcolor="#D1C4E9" shape=box style=filled]
+	N9 [label="Landing Page Optimization" color="#FF8A65" fillcolor="#FBE9E7" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#73C6BC" penwidth=1.5 style=dashed label="tracks performance" dir=forward]
+	N1 -> N2 [color="#7E57C2" penwidth=1.5 style=dashed label="writes copy" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#FF8A65" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#FF8A65" penwidth=1.5 style=dashed label="social media ads" dir=forward]
+	N7 -> N8 [color="#FF8A65" penwidth=1.5 style=solid label="digital advertising" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed label="targets demographics" dir=forward]
+	N7 -> N4 [color="#FF8A65" penwidth=1.5 style=dashed label="creates ads" dir=forward]
+	N7 -> N0 [color="#7E57C2" penwidth=1.5 style=solid label="calculates CAC" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_64.txt b/test/diagrams/scanned_medium/diagrams_64.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b2ff7ebbf54114ecbc7016b030f4e0ef4236fca8
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_64.txt
@@ -0,0 +1,11 @@
+<A or B Testing for Ads, connectedTo, Programmatic Advertising>
+<Ad Analytics Reporting, tracks performance, Demographic Targeting>
+<Ad Placement Optimization, calculates CAC, Ad Analytics Reporting>
+<Ad Placement Optimization, creates ads, Programmatic Advertising>
+<Ad Placement Optimization, digital advertising, Retargeting Campaigns>
+<Budget Management, social media ads, Ad Placement Optimization>
+<Campaign Planning, connectedTo, Budget Management>
+<Demographic Targeting, writes copy, Television Advertising>
+<Programmatic Advertising, connectedTo, Campaign Planning>
+<Retargeting Campaigns, targets demographics, Landing Page Optimization>
+<Television Advertising, connectedTo, A or B Testing for Ads>
diff --git a/test/diagrams/scanned_medium/diagrams_65.dot b/test/diagrams/scanned_medium/diagrams_65.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7521abd827ec1aa0bae3ad65655f4db13156d791
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_65.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=TB
+	N0 [label="Zero_Knowledge Proofs" color="#D3EB9F" fillcolor="#F8FDD3" shape=hexagon style=filled]
+	N1 [label="Regulatory Compliance for Blockchain" color="#EAEFA5" fillcolor="#FDFCEB" shape=rectangle style=filled]
+	N2 [label="Public Blockchain Deployment" color="#EAEFA5" fillcolor="#FDFCEB" shape=diamond style=filled]
+	N3 [label="Real Estate Tokenization" color="#D3EB9F" fillcolor="#F8FDD3" shape=box style=filled]
+	N4 [label="Digital Identity Management" color="#FF9800" fillcolor="#FFE0B2" shape=predefinedprocess style=filled]
+	N5 [label="Consortium Blockchain Setup" color="#EAEFA5" fillcolor="#FDFCEB" shape=ellipse style=filled]
+	N6 [label="Decentralized Applications Development" color="#FF9800" fillcolor="#FFE0B2" shape=vnode_shape style=filled]
+	N7 [label="Mining Operations" color="#EAEFA5" fillcolor="#FDFCEB" shape=database style=filled]
+	N8 [label="Smart Contract Development" color="#EAEFA5" fillcolor="#FDFCEB" shape=hexagon style=filled]
+	N9 [label="Tokenomics Design" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+	N10 [label="Distributed Ledger Technology" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#EAEFA5" penwidth=1.5 style=solid label="manages networks" dir=forward]
+	N3 -> N4 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=dashed label="develops layer_2s" dir=forward]
+	N5 -> N6 [color="#EAEFA5" penwidth=1.5 style=dashed label="tokenizes assets" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="ensures interoperability" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="designs protocols" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed label="implements sharding" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed label="verifies transactions" dir=forward]
+	N8 -> N7 [color="#FF9800" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N8 [color="#D3EB9F" penwidth=1.5 style=dashed label="uses ZKPs" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_65.txt b/test/diagrams/scanned_medium/diagrams_65.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b6606276abdc2179374c9ae4d289f1a000a83e48
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_65.txt
@@ -0,0 +1,12 @@
+<Consortium Blockchain Setup, tokenizes assets, Decentralized Applications Development>
+<Decentralized Applications Development, ensures interoperability, Mining Operations>
+<Decentralized Applications Development, uses ZKPs, Smart Contract Development>
+<Digital Identity Management, develops layer_2s, Consortium Blockchain Setup>
+<Mining Operations, designs protocols, Smart Contract Development>
+<Public Blockchain Deployment, manages networks, Real Estate Tokenization>
+<Real Estate Tokenization, connectedTo, Digital Identity Management>
+<Regulatory Compliance for Blockchain, connectedTo, Public Blockchain Deployment>
+<Smart Contract Development, connectedTo, Mining Operations>
+<Smart Contract Development, implements sharding, Tokenomics Design>
+<Tokenomics Design, verifies transactions, Distributed Ledger Technology>
+<Zero_Knowledge Proofs, connectedTo, Regulatory Compliance for Blockchain>
diff --git a/test/diagrams/scanned_medium/diagrams_66.txt b/test/diagrams/scanned_medium/diagrams_66.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c54321857f69ef24e287924996742365ce546925
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_66.txt
@@ -0,0 +1,9 @@
+<Blockchain Integration, connectedTo, Yield Farming>
+<Cross_chain Swaps, connectedTo, Transaction Processing>
+<Cross_chain Swaps, stores keys, Custodial Services>
+<Custodial Services, designs tokenomics, Transaction Processing>
+<Fiat On or Off Ramps, performs KYCs, Key Management>
+<KYC or AML Procedures, facilitates trades, Fiat On or Off Ramps>
+<Transaction Processing, connectedTo, Blockchain Integration>
+<Transaction Processing, lends funds, Fiat On or Off Ramps>
+<Yield Farming, connectedTo, KYC or AML Procedures>
diff --git a/test/diagrams/scanned_medium/diagrams_67.dot b/test/diagrams/scanned_medium/diagrams_67.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1ce40d6cfd847353d6306402bb95dee04c43ffc1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_67.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=BT
+	N0 [label="Equity Crowdfunding" color="#BA68C8" fillcolor="#F3E5F5" shape=box style=filled]
+	N1 [label="Manufacturing Planning" color="#BA68C8" fillcolor="#F3E5F5" shape=database style=filled]
+	N2 [label="Pitch Deck Preparation" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N3 [label="Reward_Based Crowdfunding" color="#BA68C8" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	N4 [label="Debt Crowdfunding" color="#F44336" fillcolor="#FFCDD2" shape=multipledocuments style=filled]
+	N5 [label="Platform Selection" color="#CDDC39" fillcolor="#E6EE9C" shape=rect style=filled]
+	N6 [label="Campaign Creation" color="#CDDC39" fillcolor="#E6EE9C" shape=multipledocuments style=filled]
+	N7 [label="Legal Compliance" color="#CDDC39" fillcolor="#E6EE9C" shape=rect style=filled]
+	N8 [label="Platform Fee Management" color="#CDDC39" fillcolor="#E6EE9C" shape=action style=filled]
+	N9 [label="Press Outreach" color="#BA68C8" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N10 [label="Investor Relations" color="#CDDC39" fillcolor="#E6EE9C" shape=multipledocuments style=filled]
+	N0 -> N1 [color="#BA68C8" penwidth=1.5 style=dashed label="vets projects" dir=forward]
+	N1 -> N2 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="performs due diligence" dir=forward]
+	N3 -> N4 [color="#CDDC39" penwidth=1.5 style=solid label="markets projects" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="provides support" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#CDDC39" penwidth=1.5 style=dashed label="selects platforms" dir=forward]
+	N7 -> N8 [color="#BA68C8" penwidth=1.5 style=dashed label="plans promotions" dir=forward]
+	N8 -> N9 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#F44336" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N0 [color="#F44336" penwidth=1.5 style=dashed label="manages shareholders" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_67.txt b/test/diagrams/scanned_medium/diagrams_67.txt
new file mode 100644
index 0000000000000000000000000000000000000000..80f6feefb5c6542abb0e6db8599ddc06dc1c2b08
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_67.txt
@@ -0,0 +1,11 @@
+<Campaign Creation, selects platforms, Legal Compliance>
+<Debt Crowdfunding, provides support, Platform Selection>
+<Equity Crowdfunding, vets projects, Manufacturing Planning>
+<Legal Compliance, plans promotions, Platform Fee Management>
+<Manufacturing Planning, connectedTo, Pitch Deck Preparation>
+<Pitch Deck Preparation, manages shareholders, Equity Crowdfunding>
+<Pitch Deck Preparation, performs due diligence, Reward_Based Crowdfunding>
+<Platform Fee Management, connectedTo, Press Outreach>
+<Platform Selection, connectedTo, Campaign Creation>
+<Press Outreach, connectedTo, Investor Relations>
+<Reward_Based Crowdfunding, markets projects, Debt Crowdfunding>
diff --git a/test/diagrams/scanned_medium/diagrams_68.dot b/test/diagrams/scanned_medium/diagrams_68.dot
new file mode 100644
index 0000000000000000000000000000000000000000..5e5da72034a7da4f1d39b646b6e10c2d249f0eaa
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_68.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=LR
+	N0 [label="Healthcare IoT Devices" color="#795548" fillcolor="#D7CCC8" shape=inputoutput style=filled]
+	N1 [label="Retail IoT" color="#E57373" fillcolor="#FFEBEE" shape=vnode_shape style=filled]
+	N2 [label="Edge Computing for IoT" color="#795548" fillcolor="#D7CCC8" shape=diamond style=filled]
+	N3 [label="Smart Home Devices" color="#6EB76D" fillcolor="#E9F7E8" shape=document style=filled]
+	N4 [label="Power Management for Devices" color="#6EB76D" fillcolor="#E9F7E8" shape=diamond style=filled]
+	N5 [label="Security Implementation" color="#6EB76D" fillcolor="#E9F7E8" shape=document style=filled]
+	N6 [label="Device Management" color="#6EB76D" fillcolor="#E9F7E8" shape=ellipse style=filled]
+	N7 [label="Device Prototyping" color="#6EB76D" fillcolor="#E9F7E8" shape=rectangle style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#6EB76D" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#795548" penwidth=1.5 style=dashed label="integrates AI" dir=forward]
+	N3 -> N4 [color="#795548" penwidth=1.5 style=dashed label="automates homes" dir=forward]
+	N4 -> N5 [color="#6EB76D" penwidth=1.5 style=dashed label="manages deployments" dir=forward]
+	N5 -> N6 [color="#795548" penwidth=1.5 style=dashed label="analyzes insights" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="enables wearables" dir=forward]
+	N2 -> N0 [color="#6EB76D" penwidth=1.5 style=dashed label="collects data" dir=forward]
+	N0 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_68.txt b/test/diagrams/scanned_medium/diagrams_68.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e7c85afa271a557b1edccbc82092947508ce7ec2
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_68.txt
@@ -0,0 +1,9 @@
+<Device Management, enables wearables, Device Prototyping>
+<Edge Computing for IoT, collects data, Healthcare IoT Devices>
+<Edge Computing for IoT, integrates AI, Smart Home Devices>
+<Healthcare IoT Devices, connectedTo, Retail IoT>
+<Healthcare IoT Devices, connectedTo, Smart Home Devices>
+<Power Management for Devices, manages deployments, Security Implementation>
+<Retail IoT, connectedTo, Edge Computing for IoT>
+<Security Implementation, analyzes insights, Device Management>
+<Smart Home Devices, automates homes, Power Management for Devices>
diff --git a/test/diagrams/scanned_medium/diagrams_69.dot b/test/diagrams/scanned_medium/diagrams_69.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8681ee85ffcf7017cd480c6a867863bea3f89a4b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_69.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=BT
+	N0 [label="Real_time Analytics at Edge" color="#AABEC6" fillcolor="#E0E6E9" shape=rect style=filled]
+	N1 [label="Edge AI Model Deployment" color="#BDAFA8" fillcolor="#E4E0DF" shape=rect style=filled]
+	N2 [label="Security for Edge Devices" color="#BA68C8" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	N3 [label="Resource Management at Edge" color="#AABEC6" fillcolor="#E0E6E9" shape=predefinedprocess style=filled]
+	N4 [label="Remote Device Management" color="#BA68C8" fillcolor="#F3E5F5" shape=box style=filled]
+	N5 [label="Smart City Edge Solutions" color="#AABEC6" fillcolor="#E0E6E9" shape=action style=filled]
+	N6 [label="Telecom Edge Computing" color="#BDAFA8" fillcolor="#E4E0DF" shape=vnode_shape style=filled]
+	N7 [label="Edge Data Processing" color="#BA68C8" fillcolor="#F3E5F5" shape=inputoutput style=filled]
+	N0 -> N1 [color="#BDAFA8" penwidth=1.5 style=dashed label="manages APIs" dir=forward]
+	N1 -> N2 [color="#BA68C8" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#BDAFA8" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#AABEC6" penwidth=1.5 style=dashed label="enhances retail experiences" dir=forward]
+	N5 -> N6 [color="#BDAFA8" penwidth=1.5 style=solid label="designs architectures" dir=forward]
+	N6 -> N7 [color="#BDAFA8" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N7 [color="#000000" penwidth=1.5 style=dashed label="processes events" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_69.txt b/test/diagrams/scanned_medium/diagrams_69.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fac240d570bcb513b242463dd9c238d286bd45e1
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_69.txt
@@ -0,0 +1,8 @@
+<Edge AI Model Deployment, connectedTo, Security for Edge Devices>
+<Real_time Analytics at Edge, manages APIs, Edge AI Model Deployment>
+<Remote Device Management, enhances retail experiences, Smart City Edge Solutions>
+<Resource Management at Edge, connectedTo, Remote Device Management>
+<Security for Edge Devices, connectedTo, Resource Management at Edge>
+<Security for Edge Devices, processes events, Edge Data Processing>
+<Smart City Edge Solutions, designs architectures, Telecom Edge Computing>
+<Telecom Edge Computing, connectedTo, Edge Data Processing>
diff --git a/test/diagrams/scanned_medium/diagrams_7.txt b/test/diagrams/scanned_medium/diagrams_7.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c9f0c5135ddf1d07ffc638ffc36e96d1d956a2d3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_7.txt
@@ -0,0 +1,9 @@
+<Energy Trading, researches, Grid Modernization>
+<Generator Check, connectedTo, Load Shedding>
+<Generator Check, connectedTo, Oil and Gas Exploration>
+<Grid Modernization, detects, Generator Check>
+<Load Distribution, connectedTo, Oil and Gas Exploration>
+<Load Distribution, connects, Battery Monitoring>
+<Load Shedding, isolates, Oil and Gas Exploration>
+<Oil and Gas Exploration, models, Transmission Line Maintenance>
+<Transmission Line Maintenance, forecasts, Load Distribution>
diff --git a/test/diagrams/scanned_medium/diagrams_70.dot b/test/diagrams/scanned_medium/diagrams_70.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cae5d29f66f06718ff5e5c293b4a3627188fd291
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_70.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=LR
+	N0 [label="Multi_Cloud Management" color="#00BCD4" fillcolor="#E0F7FA" shape=multipledocuments style=filled]
+	N1 [label="DevOps on Cloud" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N2 [label="Cloud Automation" color="#FBC02D" fillcolor="#FFFDE7" shape=action style=filled]
+	N3 [label="Machine Learning as a Service" color="#FBC02D" fillcolor="#FFFDE7" shape=multipledocuments style=filled]
+	N4 [label="Software as a Service" color="#F44336" fillcolor="#FFCDD2" shape=rectangle style=filled]
+	N5 [label="Load Balancing in Cloud" color="#F44336" fillcolor="#FFCDD2" shape=rectangle style=filled]
+	N6 [label="Cloud Vendor Lock_in Mitigation" color="#F44336" fillcolor="#FFCDD2" shape=rect style=filled]
+	N7 [label="Private Cloud Management" color="#FBC02D" fillcolor="#FFFDE7" shape=preparation style=filled]
+	N8 [label="Data Storage in Cloud" color="#FBC02D" fillcolor="#FFFDE7" shape=diamond style=filled]
+	N9 [label="Hybrid Cloud Deployment" color="#F44336" fillcolor="#FFCDD2" shape=action style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#00BCD4" penwidth=1.5 style=solid label="orchestrates Kubernetes" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="sets up VPNs" dir=forward]
+	N3 -> N4 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="manages multi_clouds" dir=forward]
+	N5 -> N6 [color="#F44336" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="configures firewalls" dir=forward]
+	N7 -> N8 [color="#00BCD4" penwidth=1.5 style=dashed label="tags resources" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N2 [color="#00BCD4" penwidth=1.5 style=solid label="offers PaaS" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_70.txt b/test/diagrams/scanned_medium/diagrams_70.txt
new file mode 100644
index 0000000000000000000000000000000000000000..63a34327e29e016289b0929790124f5875553b3d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_70.txt
@@ -0,0 +1,10 @@
+<Cloud Automation, sets up VPNs, Machine Learning as a Service>
+<Cloud Vendor Lock_in Mitigation, configures firewalls, Private Cloud Management>
+<Data Storage in Cloud, connectedTo, Hybrid Cloud Deployment>
+<DevOps on Cloud, orchestrates Kubernetes, Cloud Automation>
+<Load Balancing in Cloud, connectedTo, Cloud Vendor Lock_in Mitigation>
+<Machine Learning as a Service, connectedTo, Software as a Service>
+<Machine Learning as a Service, offers PaaS, Cloud Automation>
+<Multi_Cloud Management, connectedTo, DevOps on Cloud>
+<Private Cloud Management, tags resources, Data Storage in Cloud>
+<Software as a Service, manages multi_clouds, Load Balancing in Cloud>
diff --git a/test/diagrams/scanned_medium/diagrams_71.dot b/test/diagrams/scanned_medium/diagrams_71.dot
new file mode 100644
index 0000000000000000000000000000000000000000..1915ee6767118e2349d3395fb5e29899123287f6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_71.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=LR
+	N0 [label="Database Administration" color="#9FA9E1" fillcolor="#D6D9F0" shape=inputoutput style=filled]
+	N1 [label="Capacity Planning" color="#9FA9E1" fillcolor="#D6D9F0" shape=multipledocuments style=filled]
+	N2 [label="Network Security" color="#9FA9E1" fillcolor="#D6D9F0" shape=box style=filled]
+	N3 [label="Hardware Maintenance" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+	N4 [label="Antivirus and Endpoint Protection" color="#9FA9E1" fillcolor="#D6D9F0" shape=hexagon style=filled]
+	N5 [label="Virtualization" color="#9C27B0" fillcolor="#E1BEE7" shape=inputoutput style=filled]
+	N6 [label="Disaster Recovery Planning" color="#9C27B0" fillcolor="#E1BEE7" shape=multipledocuments style=filled]
+	N7 [label="Backup and Recovery Systems" color="#9FA9E1" fillcolor="#D6D9F0" shape=inputoutput style=filled]
+	N8 [label="System Administration" color="#9FA9E1" fillcolor="#D6D9F0" shape=parallelogram style=filled]
+	N9 [label="Data Center Management" color="#9FA9E1" fillcolor="#D6D9F0" shape=diamond style=filled]
+	N10 [label="Rack and Cabinet Management" color="#9FA9E1" fillcolor="#D6D9F0" shape=ellipse style=filled]
+	N0 -> N1 [color="#9FA9E1" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#9C27B0" penwidth=1.5 style=solid label="implements disaster recovery" dir=forward]
+	N4 -> N5 [color="#9FA9E1" penwidth=1.5 style=dashed label="deploys servers" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="manages power" dir=forward]
+	N6 -> N7 [color="#4DD0E1" penwidth=1.5 style=solid label="optimizes environments" dir=forward]
+	N7 -> N8 [color="#9FA9E1" penwidth=1.5 style=solid label="monitors performance" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#9C27B0" penwidth=1.5 style=dashed label="installs software" dir=forward]
+	N1 -> N8 [color="#4DD0E1" penwidth=1.5 style=solid label="manages access controls" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_71.txt b/test/diagrams/scanned_medium/diagrams_71.txt
new file mode 100644
index 0000000000000000000000000000000000000000..086a3f731d16ce8088848e42c7d64f2fa33f3846
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_71.txt
@@ -0,0 +1,11 @@
+<Antivirus and Endpoint Protection, deploys servers, Virtualization>
+<Backup and Recovery Systems, monitors performance, System Administration>
+<Capacity Planning, connectedTo, Network Security>
+<Capacity Planning, manages access controls, System Administration>
+<Data Center Management, installs software, Rack and Cabinet Management>
+<Database Administration, connectedTo, Capacity Planning>
+<Disaster Recovery Planning, optimizes environments, Backup and Recovery Systems>
+<Hardware Maintenance, implements disaster recovery, Antivirus and Endpoint Protection>
+<Network Security, connectedTo, Hardware Maintenance>
+<System Administration, connectedTo, Data Center Management>
+<Virtualization, manages power, Disaster Recovery Planning>
diff --git a/test/diagrams/scanned_medium/diagrams_72.dot b/test/diagrams/scanned_medium/diagrams_72.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b3263f98f49c6d330d43801d29b871d6eab0bf75
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_72.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=TB
+	N0 [label="Collaboration Tools" color="#4DB6AC" fillcolor="#E0F2F1" shape=action style=filled]
+	N1 [label="Serverless Deployment" color="#2196F3" fillcolor="#BBDEFB" shape=vnode_shape style=filled]
+	N2 [label="Environment Management" color="#4DB6AC" fillcolor="#E0F2F1" shape=rect style=filled]
+	N3 [label="Continuous Integration" color="#2196F3" fillcolor="#BBDEFB" shape=diamond style=filled]
+	N4 [label="Cost Optimization in Cloud DevOps" color="#4DB6AC" fillcolor="#E0F2F1" shape=document style=filled]
+	N5 [label="Continuous Delivery" color="#2196F3" fillcolor="#BBDEFB" shape=hexagon style=filled]
+	N6 [label="Chaos Engineering" color="#A2D0FF" fillcolor="#E8F0FF" shape=diamond style=filled]
+	N7 [label="Automated Deployment" color="#A2D0FF" fillcolor="#E8F0FF" shape=preparation style=filled]
+	N8 [label="ChatOps" color="#A2D0FF" fillcolor="#E8F0FF" shape=diamond style=filled]
+	N9 [label="Release Management" color="#A2D0FF" fillcolor="#E8F0FF" shape=predefinedprocess style=filled]
+	N10 [label="Alerting and Incident Response" color="#2196F3" fillcolor="#BBDEFB" shape=box style=filled]
+	N11 [label="Configuration Management" color="#4DB6AC" fillcolor="#E0F2F1" shape=inputoutput style=filled]
+	N0 -> N1 [color="#4DB6AC" penwidth=1.5 style=dashed label="provisions infrastructure" dir=forward]
+	N1 -> N2 [color="#A2D0FF" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#4DB6AC" penwidth=1.5 style=dashed label="implements blue_green" dir=forward]
+	N3 -> N4 [color="#2196F3" penwidth=1.5 style=solid label="sends alerts" dir=forward]
+	N4 -> N5 [color="#2196F3" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#A2D0FF" penwidth=1.5 style=solid label="uses IaC" dir=forward]
+	N6 -> N7 [color="#A2D0FF" penwidth=1.5 style=dashed label="runs DAST" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#4DB6AC" penwidth=1.5 style=dashed label="fosters cross_functional teams" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N10 -> N11 [color="#4DB6AC" penwidth=1.5 style=dashed label="manages environments" dir=forward]
+	N3 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N8 [color="#2196F3" penwidth=1.5 style=dashed label="integrates security" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_72.txt b/test/diagrams/scanned_medium/diagrams_72.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ad71c1c4f80d2aa34f80302de6352e41e19e2786
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_72.txt
@@ -0,0 +1,13 @@
+<Alerting and Incident Response, manages environments, Configuration Management>
+<Automated Deployment, connectedTo, ChatOps>
+<Chaos Engineering, runs DAST, Automated Deployment>
+<ChatOps, fosters cross_functional teams, Release Management>
+<Collaboration Tools, provisions infrastructure, Serverless Deployment>
+<Continuous Delivery, uses IaC, Chaos Engineering>
+<Continuous Integration, connectedTo, Release Management>
+<Continuous Integration, sends alerts, Cost Optimization in Cloud DevOps>
+<Cost Optimization in Cloud DevOps, connectedTo, Continuous Delivery>
+<Environment Management, implements blue_green, Continuous Integration>
+<Release Management, connectedTo, Alerting and Incident Response>
+<Release Management, integrates security, ChatOps>
+<Serverless Deployment, connectedTo, Environment Management>
diff --git a/test/diagrams/scanned_medium/diagrams_73.dot b/test/diagrams/scanned_medium/diagrams_73.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0389ccb3608ada1c073703089845814c592245af
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_73.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=BT
+	N0 [label="Backend Development" color="#64B5F6" fillcolor="#E3F2FD" shape=rect style=filled]
+	N1 [label="User Interface Design" color="#FFDA4E" fillcolor="#FFE88D" shape=inputoutput style=filled]
+	N2 [label="Game Development" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N3 [label="Agile Methodologies" color="#FFDA4E" fillcolor="#FFE88D" shape=document style=filled]
+	N4 [label="Algorithm Design" color="#64B5F6" fillcolor="#E3F2FD" shape=vnode_shape style=filled]
+	N5 [label="System Design" color="#64B5F6" fillcolor="#E3F2FD" shape=database style=filled]
+	N6 [label="Embedded Systems Development" color="#FFDA4E" fillcolor="#FFE88D" shape=action style=filled]
+	N7 [label="Technical Debt Management" color="#FFDA4E" fillcolor="#FFE88D" shape=rectangle style=filled]
+	N8 [label="Compiler Design" color="#64B5F6" fillcolor="#E3F2FD" shape=document style=filled]
+	N9 [label="Requirements Gathering" color="#FFDA4E" fillcolor="#FFE88D" shape=box style=filled]
+	N10 [label="Architecture Planning" color="#64B5F6" fillcolor="#E3F2FD" shape=predefinedprocess style=filled]
+	N11 [label="Mobile Application Development" color="#64B5F6" fillcolor="#E3F2FD" shape=diamond style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFDA4E" penwidth=1.5 style=dashed label="develops web apps" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid label="develops cloud_native apps" dir=forward]
+	N4 -> N5 [color="#FFDA4E" penwidth=1.5 style=solid label="builds microservices" dir=forward]
+	N5 -> N6 [color="#64B5F6" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#FFDA4E" penwidth=1.5 style=solid label="tests systems" dir=forward]
+	N8 -> N9 [color="#64B5F6" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#81C784" penwidth=1.5 style=solid label="builds desktop apps" dir=forward]
+	N10 -> N11 [color="#81C784" penwidth=1.5 style=solid label="implements security" dir=forward]
+	N6 -> N11 [color="#000000" penwidth=1.5 style=dashed label="manages versions" dir=forward]
+	N5 -> N0 [color="#FFDA4E" penwidth=1.5 style=dashed label="develops frontends" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_73.txt b/test/diagrams/scanned_medium/diagrams_73.txt
new file mode 100644
index 0000000000000000000000000000000000000000..edb0fd497679f9a6c8d0aa1b39998dd1f0dc9db4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_73.txt
@@ -0,0 +1,13 @@
+<Agile Methodologies, develops cloud_native apps, Algorithm Design>
+<Algorithm Design, builds microservices, System Design>
+<Architecture Planning, implements security, Mobile Application Development>
+<Backend Development, connectedTo, User Interface Design>
+<Compiler Design, connectedTo, Requirements Gathering>
+<Embedded Systems Development, connectedTo, Technical Debt Management>
+<Embedded Systems Development, manages versions, Mobile Application Development>
+<Game Development, develops web apps, Agile Methodologies>
+<Requirements Gathering, builds desktop apps, Architecture Planning>
+<System Design, connectedTo, Embedded Systems Development>
+<System Design, develops frontends, Backend Development>
+<Technical Debt Management, tests systems, Compiler Design>
+<User Interface Design, connectedTo, Game Development>
diff --git a/test/diagrams/scanned_medium/diagrams_74.dot b/test/diagrams/scanned_medium/diagrams_74.dot
new file mode 100644
index 0000000000000000000000000000000000000000..0b3fef28838a30f3741fdcb92f2a2dc95ec500c4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_74.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=BT
+	N0 [label="Failure Analysis" color="#CB9BE1" fillcolor="#F2E6F5" shape=inputoutput style=filled]
+	N1 [label="Schematic Capture" color="#CDDC39" fillcolor="#E6EE9C" shape=hexagon style=filled]
+	N2 [label="Troubleshooting and Debugging" color="#CB9BE1" fillcolor="#F2E6F5" shape=inputoutput style=filled]
+	N3 [label="Test Fixture Design" color="#CB9BE1" fillcolor="#F2E6F5" shape=box style=filled]
+	N4 [label="Reliability Testing" color="#CB9BE1" fillcolor="#F2E6F5" shape=action style=filled]
+	N5 [label="Cost Optimization" color="#673AB7" fillcolor="#D1C4E9" shape=rectangle style=filled]
+	N6 [label="Optical Module Design" color="#CDDC39" fillcolor="#E6EE9C" shape=vnode_shape style=filled]
+	N7 [label="Material Selection" color="#CDDC39" fillcolor="#E6EE9C" shape=database style=filled]
+	N8 [label="Prototyping" color="#CDDC39" fillcolor="#E6EE9C" shape=multipledocuments style=filled]
+	N9 [label="Documentation" color="#CB9BE1" fillcolor="#F2E6F5" shape=rectangle style=filled]
+	N10 [label="Testing and Validation" color="#CB9BE1" fillcolor="#F2E6F5" shape=document style=filled]
+	N11 [label="Power Integrity Analysis" color="#CDDC39" fillcolor="#E6EE9C" shape=box style=filled]
+	N0 -> N1 [color="#673AB7" penwidth=1.5 style=solid label="designs optical systems" 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="#000000" penwidth=1.5 style=solid label="ensures reliability" dir=forward]
+	N4 -> N5 [color="#CB9BE1" penwidth=1.5 style=dashed label="designs FPGAs" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="ensures compliance" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="designs mixed_signal" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#CB9BE1" penwidth=1.5 style=dashed dir=forward]
+	N10 -> N11 [color="#CDDC39" penwidth=1.5 style=dashed label="optimizes power delivery" dir=forward]
+	N2 -> N1 [color="#673AB7" penwidth=1.5 style=dashed label="develops firmware" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_74.txt b/test/diagrams/scanned_medium/diagrams_74.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a6efd500b9ee5ef9fac5b4efc6e4cbb7bb4a919d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_74.txt
@@ -0,0 +1,12 @@
+<Cost Optimization, ensures compliance, Optical Module Design>
+<Documentation, connectedTo, Testing and Validation>
+<Failure Analysis, designs optical systems, Schematic Capture>
+<Material Selection, designs mixed_signal, Prototyping>
+<Optical Module Design, connectedTo, Material Selection>
+<Prototyping, connectedTo, Documentation>
+<Reliability Testing, designs FPGAs, Cost Optimization>
+<Schematic Capture, connectedTo, Troubleshooting and Debugging>
+<Test Fixture Design, ensures reliability, Reliability Testing>
+<Testing and Validation, optimizes power delivery, Power Integrity Analysis>
+<Troubleshooting and Debugging, connectedTo, Test Fixture Design>
+<Troubleshooting and Debugging, develops firmware, Schematic Capture>
diff --git a/test/diagrams/scanned_medium/diagrams_75.dot b/test/diagrams/scanned_medium/diagrams_75.dot
new file mode 100644
index 0000000000000000000000000000000000000000..36537ef6c9b4cb1817eabfdd368ca9e4dd0fb071
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_75.dot
@@ -0,0 +1,27 @@
+digraph {
+	rankdir=LR
+	N0 [label="User Feedback Collection" color="#FBC02D" fillcolor="#FFFDE7" shape=box style=filled]
+	N1 [label="Native App Development" color="#FBC02D" fillcolor="#FFFDE7" shape=rectangle style=filled]
+	N2 [label="Analytics Tracking" color="#CDDC39" fillcolor="#E6EE9C" shape=ellipse style=filled]
+	N3 [label="Deployment to App Stores" color="#CDDC39" fillcolor="#E6EE9C" shape=rect style=filled]
+	N4 [label="User Experience Design" color="#FFC085" fillcolor="#FFDAB9" shape=hexagon style=filled]
+	N5 [label="Offline Mode Development" color="#FFC085" fillcolor="#FFDAB9" shape=rect style=filled]
+	N6 [label="Chat Functionality" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N7 [label="Real_time Communication Features" color="#CDDC39" fillcolor="#E6EE9C" shape=database style=filled]
+	N8 [label="API Development" color="#FBC02D" fillcolor="#FFFDE7" shape=vnode_shape style=filled]
+	N9 [label="Push Notification Implementation" color="#CDDC39" fillcolor="#E6EE9C" shape=diamond style=filled]
+	N10 [label="Deep Linking" color="#FBC02D" fillcolor="#FFFDE7" shape=document style=filled]
+	N11 [label="Accessibility Features" color="#CDDC39" fillcolor="#E6EE9C" shape=multipledocuments style=filled]
+	N0 -> N1 [color="#CDDC39" penwidth=1.5 style=solid label="enables real_time features" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="uses cloud services" dir=forward]
+	N2 -> N3 [color="#FBC02D" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#FFC085" penwidth=1.5 style=solid label="integrates wearables" dir=forward]
+	N4 -> N5 [color="#CDDC39" penwidth=1.5 style=dashed label="builds prototypes" dir=forward]
+	N5 -> N6 [color="#CDDC39" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#CDDC39" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="optimizes ASO" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#FFC085" penwidth=1.5 style=dashed label="develops native apps" dir=forward]
+	N10 -> N11 [color="#000000" penwidth=1.5 style=solid label="manages subscriptions" dir=forward]
+	N10 -> N2 [color="#000000" penwidth=1.5 style=dashed label="deploys to stores" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_75.txt b/test/diagrams/scanned_medium/diagrams_75.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1999bb4122521195cbf3c0f1d7728287b5eb0309
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_75.txt
@@ -0,0 +1,12 @@
+<API Development, connectedTo, Push Notification Implementation>
+<Analytics Tracking, connectedTo, Deployment to App Stores>
+<Chat Functionality, connectedTo, Real_time Communication Features>
+<Deep Linking, deploys to stores, Analytics Tracking>
+<Deep Linking, manages subscriptions, Accessibility Features>
+<Deployment to App Stores, integrates wearables, User Experience Design>
+<Native App Development, uses cloud services, Analytics Tracking>
+<Offline Mode Development, connectedTo, Chat Functionality>
+<Push Notification Implementation, develops native apps, Deep Linking>
+<Real_time Communication Features, optimizes ASO, API Development>
+<User Experience Design, builds prototypes, Offline Mode Development>
+<User Feedback Collection, enables real_time features, Native App Development>
diff --git a/test/diagrams/scanned_medium/diagrams_76.dot b/test/diagrams/scanned_medium/diagrams_76.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f9d93eb124a7dbd08d06932ead405a6b2664a8b0
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_76.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=BT
+	N0 [label="Community Management" color="#FFC085" fillcolor="#FFDAB9" shape=predefinedprocess style=filled]
+	N1 [label="Ethical Use of Social Media" color="#2196F3" fillcolor="#BBDEFB" shape=database style=filled]
+	N2 [label="Reputation Management" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	N3 [label="Direct Messaging Strategy" color="#2196F3" fillcolor="#BBDEFB" shape=rect style=filled]
+	N4 [label="Competitor Analysis" color="#FFC085" fillcolor="#FFDAB9" shape=parallelogram style=filled]
+	N5 [label="Engagement Rate Calculation" color="#FFC085" fillcolor="#FFDAB9" shape=rectangle style=filled]
+	N6 [label="Emerging Platform Exploration" color="#2196F3" fillcolor="#BBDEFB" shape=multipledocuments style=filled]
+	N7 [label="Reels or Short Video Production" color="#2196F3" fillcolor="#BBDEFB" shape=hexagon style=filled]
+	N8 [label="User_Generated Content Curation" color="#66BB6A" fillcolor="#E8F5E9" shape=rectangle style=filled]
+	N9 [label="Partnership Management on Social" color="#2196F3" fillcolor="#BBDEFB" shape=diamond style=filled]
+	N10 [label="Brand Voice Development" color="#66BB6A" fillcolor="#E8F5E9" shape=rect style=filled]
+	N0 -> N1 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#2196F3" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#66BB6A" penwidth=1.5 style=solid label="hosts live streams" dir=forward]
+	N3 -> N4 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFC085" penwidth=1.5 style=solid label="manages profiles" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="monitors competitors" dir=forward]
+	N6 -> N7 [color="#FFC085" penwidth=1.5 style=dashed label="drives sales" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#2196F3" penwidth=1.5 style=dashed label="produces reels" dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="conducts social audits" dir=forward]
+	N5 -> N3 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_76.txt b/test/diagrams/scanned_medium/diagrams_76.txt
new file mode 100644
index 0000000000000000000000000000000000000000..629123a45603b96ffcbb718fc0eaca67079821ff
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_76.txt
@@ -0,0 +1,11 @@
+<Community Management, connectedTo, Ethical Use of Social Media>
+<Competitor Analysis, manages profiles, Engagement Rate Calculation>
+<Direct Messaging Strategy, connectedTo, Competitor Analysis>
+<Emerging Platform Exploration, drives sales, Reels or Short Video Production>
+<Engagement Rate Calculation, connectedTo, Direct Messaging Strategy>
+<Engagement Rate Calculation, monitors competitors, Emerging Platform Exploration>
+<Ethical Use of Social Media, connectedTo, Reputation Management>
+<Partnership Management on Social, conducts social audits, Brand Voice Development>
+<Reels or Short Video Production, connectedTo, User_Generated Content Curation>
+<Reputation Management, hosts live streams, Direct Messaging Strategy>
+<User_Generated Content Curation, produces reels, Partnership Management on Social>
diff --git a/test/diagrams/scanned_medium/diagrams_77.dot b/test/diagrams/scanned_medium/diagrams_77.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b2096e5ce9c749d2820c148f293ea856571c4629
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_77.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=LR
+	N0 [label="Content Quality Assessment" color="#8C9EFF" fillcolor="#D3D7EB" shape=inputoutput style=filled]
+	N1 [label="Technical SEO" color="#90A4AE" fillcolor="#ECEFF1" shape=preparation style=filled]
+	N2 [label="Keyword Research" color="#8C9EFF" fillcolor="#D3D7EB" shape=rect style=filled]
+	N3 [label="Google My Business Management" color="#8C9EFF" fillcolor="#D3D7EB" shape=hexagon style=filled]
+	N4 [label="Video Search" color="#F7BEE0" fillcolor="#FAEBF3" shape=vnode_shape style=filled]
+	N5 [label="Competitor Keyword Analysis" color="#90A4AE" fillcolor="#ECEFF1" shape=preparation style=filled]
+	N6 [label="Schema Markup Implementation" color="#8C9EFF" fillcolor="#D3D7EB" shape=inputoutput style=filled]
+	N7 [label="Paid Search Advertising" color="#8C9EFF" fillcolor="#D3D7EB" shape=database style=filled]
+	N0 -> N1 [color="#90A4AE" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="uses schema markup" dir=forward]
+	N2 -> N3 [color="#90A4AE" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed label="optimizes on_page" dir=forward]
+	N4 -> N5 [color="#8C9EFF" penwidth=1.5 style=solid label="designs site architecture" dir=forward]
+	N5 -> N6 [color="#F7BEE0" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N7 [color="#F7BEE0" penwidth=1.5 style=dashed label="manages international SEO" dir=forward]
+	N5 -> N7 [color="#F7BEE0" penwidth=1.5 style=solid label="detects spam" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_77.txt b/test/diagrams/scanned_medium/diagrams_77.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3914d50750db02aa6fb2bcefd4bcd38a5ea5b27f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_77.txt
@@ -0,0 +1,8 @@
+<Competitor Keyword Analysis, connectedTo, Schema Markup Implementation>
+<Competitor Keyword Analysis, detects spam, Paid Search Advertising>
+<Content Quality Assessment, connectedTo, Technical SEO>
+<Google My Business Management, optimizes on_page, Video Search>
+<Keyword Research, connectedTo, Google My Business Management>
+<Schema Markup Implementation, manages international SEO, Paid Search Advertising>
+<Technical SEO, uses schema markup, Keyword Research>
+<Video Search, designs site architecture, Competitor Keyword Analysis>
diff --git a/test/diagrams/scanned_medium/diagrams_78.dot b/test/diagrams/scanned_medium/diagrams_78.dot
new file mode 100644
index 0000000000000000000000000000000000000000..03c93d21f9582761b16b8dee1fbfe8fe0de8f8bb
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_78.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=BT
+	N0 [label="Data Minimization Principles" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+	N1 [label="Privileged Access Management" color="#4DD0E1" fillcolor="#C9F0F0" shape=hexagon style=filled]
+	N2 [label="Identity Proofing" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N3 [label="Consent Management" color="#AABEC6" fillcolor="#E0E6E9" shape=vnode_shape style=filled]
+	N4 [label="Compliance with Data Protection Regulations" color="#AABEC6" fillcolor="#E0E6E9" shape=predefinedprocess style=filled]
+	N5 [label="Identity as a Service" color="#4DD0E1" fillcolor="#C9F0F0" shape=hexagon style=filled]
+	N6 [label="Multi_Factor Authentication" color="#FFA726" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+	N7 [label="Credential Management" color="#AABEC6" fillcolor="#E0E6E9" shape=vnode_shape style=filled]
+	N8 [label="KYC Integration" color="#FFA726" fillcolor="#FFF3E0" shape=multipledocuments style=filled]
+	N9 [label="Identity Verification" color="#AABEC6" fillcolor="#E0E6E9" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#4DD0E1" penwidth=1.5 style=dashed label="uses biometrics" dir=forward]
+	N2 -> N3 [color="#FFA726" penwidth=1.5 style=solid label="issues verifiable credentials" dir=forward]
+	N3 -> N4 [color="#4DD0E1" penwidth=1.5 style=solid label="creates portable identities" dir=forward]
+	N4 -> N5 [color="#AABEC6" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#4DD0E1" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="revokes access" dir=forward]
+	N8 -> N9 [color="#AABEC6" penwidth=1.5 style=solid label="manages consents" dir=forward]
+	N9 -> N7 [color="#000000" penwidth=1.5 style=solid label="enables MFA" dir=forward]
+	N9 -> N4 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_78.txt b/test/diagrams/scanned_medium/diagrams_78.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7df158f10642db0cef57d314d7c46b9f4f63cf6c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_78.txt
@@ -0,0 +1,11 @@
+<Compliance with Data Protection Regulations, connectedTo, Identity as a Service>
+<Consent Management, creates portable identities, Compliance with Data Protection Regulations>
+<Credential Management, revokes access, KYC Integration>
+<Data Minimization Principles, connectedTo, Privileged Access Management>
+<Identity Proofing, issues verifiable credentials, Consent Management>
+<Identity Verification, connectedTo, Compliance with Data Protection Regulations>
+<Identity Verification, enables MFA, Credential Management>
+<Identity as a Service, connectedTo, Multi_Factor Authentication>
+<KYC Integration, manages consents, Identity Verification>
+<Multi_Factor Authentication, connectedTo, Credential Management>
+<Privileged Access Management, uses biometrics, Identity Proofing>
diff --git a/test/diagrams/scanned_medium/diagrams_79.dot b/test/diagrams/scanned_medium/diagrams_79.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f481f5460517890cc4cfb7c67fbabd44c62b6152
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_79.dot
@@ -0,0 +1,19 @@
+digraph {
+	rankdir=LR
+	N0 [label="Course Design" color="#26A69A" fillcolor="#E0F2F1" shape=vnode_shape style=filled]
+	N1 [label="Synchronous Learning" color="#A1887F" fillcolor="#EFEBE9" shape=document style=filled]
+	N2 [label="Bootcamp Development" color="#AB47BC" fillcolor="#F3E5F5" shape=rectangle style=filled]
+	N3 [label="Feedback and Grading" color="#A1887F" fillcolor="#EFEBE9" shape=inputoutput style=filled]
+	N4 [label="Accreditation Management" color="#AB47BC" fillcolor="#F3E5F5" shape=hexagon style=filled]
+	N5 [label="Test Preparation Courses" color="#AB47BC" fillcolor="#F3E5F5" shape=multipledocuments style=filled]
+	N6 [label="AI in Online Education" color="#26A69A" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N7 [label="Course Evaluation" color="#26A69A" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="administers assessments" dir=forward]
+	N1 -> N2 [color="#A1887F" penwidth=1.5 style=solid label="hosts MOOCs" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="creates analytics dashboards" dir=forward]
+	N3 -> N4 [color="#26A69A" penwidth=1.5 style=dashed label="offers online tutoring" dir=forward]
+	N4 -> N5 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="issues badges" dir=forward]
+	N6 -> N7 [color="#A1887F" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N7 [color="#AB47BC" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_79.txt b/test/diagrams/scanned_medium/diagrams_79.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9eb236f5f90f4a7c6002f98dbe34d0c648811976
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_79.txt
@@ -0,0 +1,8 @@
+<AI in Online Education, connectedTo, Course Evaluation>
+<Accreditation Management, connectedTo, Course Evaluation>
+<Accreditation Management, connectedTo, Test Preparation Courses>
+<Bootcamp Development, creates analytics dashboards, Feedback and Grading>
+<Course Design, administers assessments, Synchronous Learning>
+<Feedback and Grading, offers online tutoring, Accreditation Management>
+<Synchronous Learning, hosts MOOCs, Bootcamp Development>
+<Test Preparation Courses, issues badges, AI in Online Education>
diff --git a/test/diagrams/scanned_medium/diagrams_8.dot b/test/diagrams/scanned_medium/diagrams_8.dot
new file mode 100644
index 0000000000000000000000000000000000000000..d33fe4edfbf98543011496f4d057ba7463744587
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_8.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=LR
+	N0 [label="Bail Hearing" color="#D3EB9F" fillcolor="#F8FDD3" shape=predefinedprocess style=filled]
+	N1 [label="Trademark Registration" color="#FFD54F" fillcolor="#FFF8E1" shape=document style=filled]
+	N2 [label="Pre_Trial Hearing" color="#FFD54F" fillcolor="#FFF8E1" shape=inputoutput style=filled]
+	N3 [label="Trial Session" color="#26A69A" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N4 [label="Verdict Announcement" color="#D3EB9F" fillcolor="#F8FDD3" shape=database style=filled]
+	N5 [label="Document Drafting" color="#26A69A" fillcolor="#E0F2F1" shape=diamond style=filled]
+	N6 [label="Bankruptcy Filing" color="#26A69A" fillcolor="#E0F2F1" shape=action style=filled]
+	N7 [label="Contract Review" color="#D3EB9F" fillcolor="#F8FDD3" shape=rectangle style=filled]
+	N8 [label="Patent Application" color="#FFD54F" fillcolor="#FFF8E1" shape=predefinedprocess style=filled]
+	N0 -> N1 [color="#26A69A" penwidth=1.5 style=dashed label="advises" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="negotiates" dir=forward]
+	N2 -> N3 [color="#26A69A" penwidth=1.5 style=dashed label="arbitrates" dir=forward]
+	N3 -> N4 [color="#D3EB9F" penwidth=1.5 style=dashed label="settles" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="represents" dir=forward]
+	N5 -> N6 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="educates" dir=forward]
+	N7 -> N8 [color="#FFD54F" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N1 [color="#D3EB9F" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N8 [color="#000000" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_8.txt b/test/diagrams/scanned_medium/diagrams_8.txt
new file mode 100644
index 0000000000000000000000000000000000000000..28081cbb8ad880722bc1e00d0f735c371f02f797
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_8.txt
@@ -0,0 +1,10 @@
+<Bail Hearing, advises, Trademark Registration>
+<Bankruptcy Filing, educates, Contract Review>
+<Contract Review, connectedTo, Patent Application>
+<Document Drafting, connectedTo, Bankruptcy Filing>
+<Pre_Trial Hearing, arbitrates, Trial Session>
+<Pre_Trial Hearing, connectedTo, Patent Application>
+<Trademark Registration, negotiates, Pre_Trial Hearing>
+<Trial Session, connectedTo, Trademark Registration>
+<Trial Session, settles, Verdict Announcement>
+<Verdict Announcement, represents, Document Drafting>
diff --git a/test/diagrams/scanned_medium/diagrams_80.dot b/test/diagrams/scanned_medium/diagrams_80.dot
new file mode 100644
index 0000000000000000000000000000000000000000..b7d70b08e408e28ad12afe874bb83beecb04361c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_80.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=BT
+	N0 [label="Course Retirement Planning" color="#61CAC3" fillcolor="#C2E8E6" shape=action style=filled]
+	N1 [label="Financial Aid for Learners" color="#B8C0F5" fillcolor="#ECF0FD" shape=rect style=filled]
+	N2 [label="Learner Feedback Analysis" color="#61CAC3" fillcolor="#C2E8E6" shape=rect style=filled]
+	N3 [label="Verified Track Management" color="#B8C0F5" fillcolor="#ECF0FD" shape=action style=filled]
+	N4 [label="University Partnerships" color="#61CAC3" fillcolor="#C2E8E6" shape=preparation style=filled]
+	N5 [label="Content Licensing" color="#B8C0F5" fillcolor="#ECF0FD" shape=parallelogram style=filled]
+	N6 [label="Platform Selection" color="#AABEC6" fillcolor="#E0E6E9" shape=box style=filled]
+	N7 [label="Peer Grading Implementation" color="#B8C0F5" fillcolor="#ECF0FD" shape=document style=filled]
+	N8 [label="Course Audit Options" color="#B8C0F5" fillcolor="#ECF0FD" shape=vnode_shape style=filled]
+	N9 [label="Certificate of Completion Issuance" color="#61CAC3" fillcolor="#C2E8E6" shape=document style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="develops content" dir=forward]
+	N1 -> N2 [color="#AABEC6" penwidth=1.5 style=dashed label="issues statements of accomplishment" dir=forward]
+	N2 -> N3 [color="#B8C0F5" penwidth=1.5 style=dashed label="manages certifications" dir=forward]
+	N3 -> N4 [color="#B8C0F5" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#AABEC6" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#B8C0F5" penwidth=1.5 style=dashed label="offers pathways" dir=forward]
+	N6 -> N7 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#61CAC3" penwidth=1.5 style=dashed label="secures data" dir=forward]
+	N7 -> N3 [color="#B8C0F5" penwidth=1.5 style=dashed label="provides readings" dir=forward]
+	N3 -> N1 [color="#B8C0F5" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_80.txt b/test/diagrams/scanned_medium/diagrams_80.txt
new file mode 100644
index 0000000000000000000000000000000000000000..024df8a0cea9df956ff2167dcfb2356fb0f3a7e2
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_80.txt
@@ -0,0 +1,11 @@
+<Content Licensing, offers pathways, Platform Selection>
+<Course Audit Options, secures data, Certificate of Completion Issuance>
+<Course Retirement Planning, develops content, Financial Aid for Learners>
+<Financial Aid for Learners, issues statements of accomplishment, Learner Feedback Analysis>
+<Learner Feedback Analysis, manages certifications, Verified Track Management>
+<Peer Grading Implementation, connectedTo, Course Audit Options>
+<Peer Grading Implementation, provides readings, Verified Track Management>
+<Platform Selection, connectedTo, Peer Grading Implementation>
+<University Partnerships, connectedTo, Content Licensing>
+<Verified Track Management, connectedTo, Financial Aid for Learners>
+<Verified Track Management, connectedTo, University Partnerships>
diff --git a/test/diagrams/scanned_medium/diagrams_81.dot b/test/diagrams/scanned_medium/diagrams_81.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8c369925193e54c2b4930c44049d4530b018abb4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_81.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=TB
+	N0 [label="Score Analysis" color="#4285F4" fillcolor="#D0E0F8" shape=preparation style=filled]
+	N1 [label="Memory Techniques Training" color="#4285F4" fillcolor="#D0E0F8" shape=parallelogram style=filled]
+	N2 [label="History Topic Mastery" color="#92C79A" fillcolor="#E8F0EA" shape=ellipse style=filled]
+	N3 [label="Adaptive Learning Algorithms" color="#7986CB" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N4 [label="Time Management Coaching" color="#92C79A" fillcolor="#E8F0EA" shape=multipledocuments style=filled]
+	N5 [label="Diagnostic Assessment" color="#7986CB" fillcolor="#E8EAF6" shape=rectangle style=filled]
+	N6 [label="Graduate School Exam Prep" color="#4285F4" fillcolor="#D0E0F8" shape=preparation style=filled]
+	N7 [label="Science Concept Review" color="#7986CB" fillcolor="#E8EAF6" shape=hexagon style=filled]
+	N8 [label="Curriculum Development" color="#92C79A" fillcolor="#E8F0EA" shape=parallelogram style=filled]
+	N9 [label="College Entrance Exam Prep" color="#4285F4" fillcolor="#D0E0F8" shape=ellipse style=filled]
+	N10 [label="Practice Test Creation" color="#7986CB" fillcolor="#E8EAF6" shape=database style=filled]
+	N0 -> N1 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#92C79A" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#7986CB" penwidth=1.5 style=dashed label="counsels" dir=forward]
+	N3 -> N4 [color="#4285F4" penwidth=1.5 style=dashed label="coaches" dir=forward]
+	N4 -> N5 [color="#92C79A" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="adapts" dir=forward]
+	N6 -> N7 [color="#4285F4" penwidth=1.5 style=solid label="teaches" dir=forward]
+	N7 -> N8 [color="#7986CB" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#4285F4" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid label="facilitates" dir=forward]
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+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_81.txt b/test/diagrams/scanned_medium/diagrams_81.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a37d6d4037d37cd55bdb38cb2795bfd5012f9013
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_81.txt
@@ -0,0 +1,11 @@
+<Adaptive Learning Algorithms, coaches, Time Management Coaching>
+<College Entrance Exam Prep, facilitates, Practice Test Creation>
+<Curriculum Development, connectedTo, College Entrance Exam Prep>
+<Diagnostic Assessment, adapts, Graduate School Exam Prep>
+<Graduate School Exam Prep, teaches, Science Concept Review>
+<History Topic Mastery, counsels, Adaptive Learning Algorithms>
+<Memory Techniques Training, connectedTo, History Topic Mastery>
+<Science Concept Review, connectedTo, Curriculum Development>
+<Science Concept Review, connectedTo, Diagnostic Assessment>
+<Score Analysis, connectedTo, Memory Techniques Training>
+<Time Management Coaching, connectedTo, Diagnostic Assessment>
diff --git a/test/diagrams/scanned_medium/diagrams_82.dot b/test/diagrams/scanned_medium/diagrams_82.dot
new file mode 100644
index 0000000000000000000000000000000000000000..78ba59d8a4f0c3de8eca63bf551ec4a6c213b908
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_82.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=BT
+	N0 [label="Curriculum Customization" color="#FFCC80" fillcolor="#FFF0CC" shape=box style=filled]
+	N1 [label="Sentence Construction Practice" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N2 [label="Progress Tracking" color="#E57373" fillcolor="#FFEBEE" shape=diamond style=filled]
+	N3 [label="Adult Language Learning" color="#82DAFF" fillcolor="#C8EDFF" shape=hexagon style=filled]
+	N4 [label="Language Exchange Programs" color="#E57373" fillcolor="#FFEBEE" shape=predefinedprocess style=filled]
+	N5 [label="Listening Comprehension" color="#FFCC80" fillcolor="#FFF0CC" shape=ellipse style=filled]
+	N6 [label="Vocabulary Acquisition" color="#82DAFF" fillcolor="#C8EDFF" shape=document style=filled]
+	N7 [label="Speaking Practice" color="#FFCC80" fillcolor="#FFF0CC" shape=diamond style=filled]
+	N8 [label="Role_Playing Scenarios" color="#82DAFF" fillcolor="#C8EDFF" shape=database style=filled]
+	N0 -> N1 [color="#FFCC80" penwidth=1.5 style=dashed label="reads" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="markets" dir=forward]
+	N2 -> N3 [color="#82DAFF" penwidth=1.5 style=solid label="provides" 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="#82DAFF" penwidth=1.5 style=dashed label="speaks" dir=forward]
+	N6 -> N7 [color="#FFCC80" penwidth=1.5 style=dashed label="gamifies" dir=forward]
+	N7 -> N8 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N5 [color="#FFCC80" penwidth=1.5 style=dashed label="dialogues" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_83.dot b/test/diagrams/scanned_medium/diagrams_83.dot
new file mode 100644
index 0000000000000000000000000000000000000000..8b3dd4bba8ba0d6edbdeb2721b45cf069c2e7480
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_83.dot
@@ -0,0 +1,25 @@
+digraph {
+	rankdir=TB
+	N0 [label="Medication Management" color="#A1887F" fillcolor="#EFEBE9" shape=hexagon style=filled]
+	N1 [label="Schizophrenia Management" color="#A1887F" fillcolor="#EFEBE9" shape=inputoutput style=filled]
+	N2 [label="Group Therapy" color="#00BCD4" fillcolor="#E0F7FA" shape=rectangle style=filled]
+	N3 [label="Telehealth Counseling" color="#FFA726" fillcolor="#FFF3E0" shape=parallelogram style=filled]
+	N4 [label="Treatment Plan Development" color="#A1887F" fillcolor="#EFEBE9" shape=document style=filled]
+	N5 [label="Digital Mental Health Tools" color="#00BCD4" fillcolor="#E0F7FA" shape=hexagon style=filled]
+	N6 [label="Suicide Prevention" color="#FFA726" fillcolor="#FFF3E0" shape=database style=filled]
+	N7 [label="Emotional Regulation Training" color="#FFA726" fillcolor="#FFF3E0" shape=rect style=filled]
+	N8 [label="Dialectical Behavior Therapy" color="#A1887F" fillcolor="#EFEBE9" shape=multipledocuments style=filled]
+	N9 [label="Cognitive Behavioral Therapy" color="#A1887F" fillcolor="#EFEBE9" shape=rectangle style=filled]
+	N10 [label="Crisis Intervention" color="#A1887F" fillcolor="#EFEBE9" shape=box style=filled]
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+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed label="advises" dir=forward]
+	N3 -> N4 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFA726" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#A1887F" penwidth=1.5 style=solid label="tracks" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=dashed label="supports" dir=forward]
+	N7 -> N8 [color="#A1887F" penwidth=1.5 style=dashed label="diagnoses" dir=forward]
+	N8 -> N9 [color="#FFA726" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#A1887F" penwidth=1.5 style=solid dir=forward]
+	N4 -> N9 [color="#FFA726" penwidth=1.5 style=solid label="protects" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_83.txt b/test/diagrams/scanned_medium/diagrams_83.txt
new file mode 100644
index 0000000000000000000000000000000000000000..9f342b28d6f3808414cb5519b17829609c5ca3c9
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_83.txt
@@ -0,0 +1,11 @@
+<Cognitive Behavioral Therapy, connectedTo, Crisis Intervention>
+<Dialectical Behavior Therapy, connectedTo, Cognitive Behavioral Therapy>
+<Digital Mental Health Tools, tracks, Suicide Prevention>
+<Emotional Regulation Training, diagnoses, Dialectical Behavior Therapy>
+<Group Therapy, advises, Telehealth Counseling>
+<Medication Management, coping, Schizophrenia Management>
+<Schizophrenia Management, connectedTo, Group Therapy>
+<Suicide Prevention, supports, Emotional Regulation Training>
+<Telehealth Counseling, connectedTo, Treatment Plan Development>
+<Treatment Plan Development, connectedTo, Digital Mental Health Tools>
+<Treatment Plan Development, protects, Cognitive Behavioral Therapy>
diff --git a/test/diagrams/scanned_medium/diagrams_84.dot b/test/diagrams/scanned_medium/diagrams_84.dot
new file mode 100644
index 0000000000000000000000000000000000000000..eef3d44062836aa3d034b07497c89181ab67a4b6
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_84.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=RL
+	N0 [label="Community Nutrition Workshops" color="#FFEB3B" fillcolor="#FFF9C4" shape=database style=filled]
+	N1 [label="Dietary Assessment" color="#00BCD4" fillcolor="#B2EBF2" shape=action style=filled]
+	N2 [label="Dietary Supplement Review" color="#00BCD4" fillcolor="#B2EBF2" shape=inputoutput style=filled]
+	N3 [label="Weight Management" color="#00BCD4" fillcolor="#B2EBF2" shape=preparation style=filled]
+	N4 [label="Gut Microbiome Health" color="#00BCD4" fillcolor="#B2EBF2" shape=diamond style=filled]
+	N5 [label="Grocery Shopping Guidance" color="#FF5722" fillcolor="#FFCCBC" shape=preparation style=filled]
+	N6 [label="Food Service Management Consulting" color="#FFEB3B" fillcolor="#FFF9C4" shape=rect style=filled]
+	N7 [label="Metabolism Rate Assessment" color="#FFEB3B" fillcolor="#FFF9C4" shape=parallelogram style=filled]
+	N8 [label="Disease_Specific Nutrition" color="#FF5722" fillcolor="#FFCCBC" shape=predefinedprocess style=filled]
+	N9 [label="Nutrigenomics Research" color="#FFEB3B" fillcolor="#FFF9C4" shape=rect style=filled]
+	N10 [label="Maternal Nutrition" color="#FF5722" fillcolor="#FFCCBC" shape=action style=filled]
+	N0 -> N1 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#FF5722" penwidth=1.5 style=solid label="prepares" dir=forward]
+	N2 -> N3 [color="#FF5722" penwidth=1.5 style=dashed label="educates" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid label="promotes" dir=forward]
+	N5 -> N6 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#00BCD4" penwidth=1.5 style=dashed label="generates" dir=forward]
+	N7 -> N8 [color="#00BCD4" penwidth=1.5 style=dashed label="cooks" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N6 -> N0 [color="#000000" penwidth=1.5 style=dashed label="plans" dir=forward]
+	N1 -> N9 [color="#000000" penwidth=1.5 style=solid dir=forward]
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\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_84.txt b/test/diagrams/scanned_medium/diagrams_84.txt
new file mode 100644
index 0000000000000000000000000000000000000000..017cfddb6ea8392434e9455b34ae04b1676a83ed
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_84.txt
@@ -0,0 +1,12 @@
+<Community Nutrition Workshops, connectedTo, Dietary Assessment>
+<Dietary Assessment, connectedTo, Nutrigenomics Research>
+<Dietary Assessment, prepares, Dietary Supplement Review>
+<Dietary Supplement Review, educates, Weight Management>
+<Disease_Specific Nutrition, connectedTo, Nutrigenomics Research>
+<Food Service Management Consulting, generates, Metabolism Rate Assessment>
+<Food Service Management Consulting, plans, Community Nutrition Workshops>
+<Grocery Shopping Guidance, connectedTo, Food Service Management Consulting>
+<Gut Microbiome Health, promotes, Grocery Shopping Guidance>
+<Metabolism Rate Assessment, cooks, Disease_Specific Nutrition>
+<Nutrigenomics Research, connectedTo, Maternal Nutrition>
+<Weight Management, connectedTo, Gut Microbiome Health>
diff --git a/test/diagrams/scanned_medium/diagrams_85.dot b/test/diagrams/scanned_medium/diagrams_85.dot
new file mode 100644
index 0000000000000000000000000000000000000000..c194ac9d54b9d5f7682139c25a88278b597d3577
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_85.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=BT
+	N0 [label="Online Fitness Coaching" color="#CFCFCF" fillcolor="#F6F6F6" shape=predefinedprocess style=filled]
+	N1 [label="Outdoor Fitness Activities" color="#CFCFCF" fillcolor="#F6F6F6" shape=ellipse style=filled]
+	N2 [label="Senior Fitness Programs" color="#CFCFCF" fillcolor="#F6F6F6" shape=action style=filled]
+	N3 [label="Personal Training" color="#CFCFCF" fillcolor="#F6F6F6" shape=action style=filled]
+	N4 [label="Mind_Body Connection" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+	N5 [label="Biometric Feedback Integration" color="#DCE775" fillcolor="#FCFCE7" shape=document style=filled]
+	N6 [label="Workout Tracking Apps" color="#DCE775" fillcolor="#FCFCE7" shape=vnode_shape style=filled]
+	N7 [label="Balance and Coordination" color="#DCE775" fillcolor="#FCFCE7" shape=parallelogram style=filled]
+	N8 [label="Rehabilitation Exercises" color="#CFCFCF" fillcolor="#F6F6F6" shape=database style=filled]
+	N9 [label="Fitness Assessment" color="#CFCFCF" fillcolor="#F6F6F6" shape=diamond style=filled]
+	N10 [label="Wearable Fitness Devices" color="#D2D2D2" fillcolor="#F0F0F0" shape=multipledocuments style=filled]
+	N11 [label="Nutrition for Fitness" color="#DCE775" fillcolor="#FCFCE7" shape=inputoutput style=filled]
+	N0 -> N1 [color="#D2D2D2" penwidth=1.5 style=solid label="supports" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid label="designs" dir=forward]
+	N2 -> N3 [color="#DCE775" penwidth=1.5 style=dashed label="educates" dir=forward]
+	N3 -> N4 [color="#D2D2D2" penwidth=1.5 style=dashed label="measures" dir=forward]
+	N4 -> N5 [color="#DCE775" penwidth=1.5 style=dashed label="connects" dir=forward]
+	N5 -> N6 [color="#DCE775" penwidth=1.5 style=dashed label="tests" dir=forward]
+	N6 -> N7 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N7 -> N8 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N9 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#D2D2D2" penwidth=1.5 style=solid label="guides" dir=forward]
+	N10 -> N11 [color="#D2D2D2" penwidth=1.5 style=solid label="automates" dir=forward]
+	N2 -> N0 [color="#D2D2D2" penwidth=1.5 style=solid label="consults" dir=forward]
+	N5 -> N4 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_85.txt b/test/diagrams/scanned_medium/diagrams_85.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e634110323a58cf61ad0f67b21a5ef6fd933e0d3
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_85.txt
@@ -0,0 +1,13 @@
+<Balance and Coordination, connectedTo, Rehabilitation Exercises>
+<Biometric Feedback Integration, connectedTo, Mind_Body Connection>
+<Biometric Feedback Integration, tests, Workout Tracking Apps>
+<Fitness Assessment, guides, Wearable Fitness Devices>
+<Mind_Body Connection, connects, Biometric Feedback Integration>
+<Online Fitness Coaching, supports, Outdoor Fitness Activities>
+<Outdoor Fitness Activities, designs, Senior Fitness Programs>
+<Personal Training, measures, Mind_Body Connection>
+<Rehabilitation Exercises, connectedTo, Fitness Assessment>
+<Senior Fitness Programs, consults, Online Fitness Coaching>
+<Senior Fitness Programs, educates, Personal Training>
+<Wearable Fitness Devices, automates, Nutrition for Fitness>
+<Workout Tracking Apps, connectedTo, Balance and Coordination>
diff --git a/test/diagrams/scanned_medium/diagrams_86.dot b/test/diagrams/scanned_medium/diagrams_86.dot
new file mode 100644
index 0000000000000000000000000000000000000000..cb10605afb1897367a69e72967f21345f067987f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_86.dot
@@ -0,0 +1,28 @@
+digraph {
+	rankdir=TB
+	N0 [label="Health Coaching" color="#FFD54F" fillcolor="#FFF8E1" shape=database style=filled]
+	N1 [label="Journaling for Wellness" color="#FFC107" fillcolor="#FFECB3" shape=diamond style=filled]
+	N2 [label="Alternative Therapies" color="#FFD54F" fillcolor="#FFF8E1" shape=box style=filled]
+	N3 [label="Biofeedback Training" color="#FFC107" fillcolor="#FFECB3" shape=database style=filled]
+	N4 [label="Mindfulness Practice" color="#FFC107" fillcolor="#FFECB3" shape=document style=filled]
+	N5 [label="Positive Psychology Application" color="#FFC107" fillcolor="#FFECB3" shape=action style=filled]
+	N6 [label="Longevity Planning" color="#FFC107" fillcolor="#FFECB3" shape=database style=filled]
+	N7 [label="Work_Life Balance Coaching" color="#FFC107" fillcolor="#FFECB3" shape=database style=filled]
+	N8 [label="Meditation Coaching" color="#FFD54F" fillcolor="#FFF8E1" shape=inputoutput style=filled]
+	N9 [label="Wellness Retreat Planning" color="#FFC107" fillcolor="#FFECB3" shape=rectangle style=filled]
+	N10 [label="Resilience Building" color="#CDDC39" fillcolor="#E6EE9C" shape=vnode_shape style=filled]
+	N11 [label="Stress Management" color="#FFC107" fillcolor="#FFECB3" shape=diamond style=filled]
+	N0 -> N1 [color="#FFD54F" penwidth=1.5 style=solid label="personalizes" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFD54F" penwidth=1.5 style=solid label="promotes" dir=forward]
+	N3 -> N4 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#CDDC39" penwidth=1.5 style=solid label="stress_reduces" dir=forward]
+	N5 -> N6 [color="#CDDC39" penwidth=1.5 style=solid label="complies" dir=forward]
+	N6 -> N7 [color="#FFD54F" penwidth=1.5 style=dashed label="manages" dir=forward]
+	N7 -> N8 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#FFC107" penwidth=1.5 style=solid dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed label="develops" dir=forward]
+	N10 -> N11 [color="#CDDC39" penwidth=1.5 style=dashed label="meditates" dir=forward]
+	N4 -> N9 [color="#FFC107" penwidth=1.5 style=solid label="sleeps" dir=forward]
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\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_86.txt b/test/diagrams/scanned_medium/diagrams_86.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5529f83c96a8874be12d346e55f06884c8418c2d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_86.txt
@@ -0,0 +1,13 @@
+<Alternative Therapies, promotes, Biofeedback Training>
+<Biofeedback Training, connectedTo, Mindfulness Practice>
+<Health Coaching, personalizes, Journaling for Wellness>
+<Journaling for Wellness, connectedTo, Alternative Therapies>
+<Longevity Planning, manages, Work_Life Balance Coaching>
+<Meditation Coaching, connectedTo, Wellness Retreat Planning>
+<Mindfulness Practice, researches, Longevity Planning>
+<Mindfulness Practice, sleeps, Wellness Retreat Planning>
+<Mindfulness Practice, stress_reduces, Positive Psychology Application>
+<Positive Psychology Application, complies, Longevity Planning>
+<Resilience Building, meditates, Stress Management>
+<Wellness Retreat Planning, develops, Resilience Building>
+<Work_Life Balance Coaching, connectedTo, Meditation Coaching>
diff --git a/test/diagrams/scanned_medium/diagrams_87.dot b/test/diagrams/scanned_medium/diagrams_87.dot
new file mode 100644
index 0000000000000000000000000000000000000000..fc1edb99a5a9cfd53772ef56d9693ae563cf59af
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_87.dot
@@ -0,0 +1,26 @@
+digraph {
+	rankdir=RL
+	N0 [label="Ventilation Planning" color="#F44336" fillcolor="#FFCDD2" shape=ellipse style=filled]
+	N1 [label="CAD Drafting" color="#4DD0E1" fillcolor="#C9F0F0" shape=vnode_shape style=filled]
+	N2 [label="Space Planning" color="#E57373" fillcolor="#FFEBEE" shape=box style=filled]
+	N3 [label="Concept Development" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+	N4 [label="Furniture Selection" color="#E57373" fillcolor="#FFEBEE" shape=diamond style=filled]
+	N5 [label="Office Space Design" color="#E57373" fillcolor="#FFEBEE" shape=rectangle style=filled]
+	N6 [label="Hospitality Interior Design" color="#4DD0E1" fillcolor="#C9F0F0" shape=diamond style=filled]
+	N7 [label="Site Measurement" color="#F44336" fillcolor="#FFCDD2" shape=diamond style=filled]
+	N8 [label="Smart Home Technology Integration" color="#E57373" fillcolor="#FFEBEE" shape=parallelogram style=filled]
+	N9 [label="Ergonomics Integration" color="#4DD0E1" fillcolor="#C9F0F0" shape=action style=filled]
+	N10 [label="Healthcare Interior Design" color="#F44336" fillcolor="#FFCDD2" shape=box style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="manages" dir=forward]
+	N1 -> N2 [color="#E57373" penwidth=1.5 style=dashed label="markets" dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#4DD0E1" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#4DD0E1" penwidth=1.5 style=dashed label="customizes" dir=forward]
+	N6 -> N7 [color="#F44336" penwidth=1.5 style=dashed label="renders" dir=forward]
+	N7 -> N8 [color="#E57373" penwidth=1.5 style=solid dir=forward]
+	N8 -> N9 [color="#E57373" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N10 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N6 -> N4 [color="#000000" penwidth=1.5 style=dashed label="consults" dir=forward]
+	N7 -> N9 [color="#4DD0E1" penwidth=1.5 style=dashed label="photographs" dir=forward]
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\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_87.txt b/test/diagrams/scanned_medium/diagrams_87.txt
new file mode 100644
index 0000000000000000000000000000000000000000..501be522bc0d78809dc5dd1897d426d81ff75b10
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_87.txt
@@ -0,0 +1,12 @@
+<CAD Drafting, markets, Space Planning>
+<Concept Development, connectedTo, Furniture Selection>
+<Ergonomics Integration, connectedTo, Healthcare Interior Design>
+<Furniture Selection, connectedTo, Office Space Design>
+<Hospitality Interior Design, consults, Furniture Selection>
+<Hospitality Interior Design, renders, Site Measurement>
+<Office Space Design, customizes, Hospitality Interior Design>
+<Site Measurement, connectedTo, Smart Home Technology Integration>
+<Site Measurement, photographs, Ergonomics Integration>
+<Smart Home Technology Integration, connectedTo, Ergonomics Integration>
+<Space Planning, connectedTo, Concept Development>
+<Ventilation Planning, manages, CAD Drafting>
diff --git a/test/diagrams/scanned_medium/diagrams_88.dot b/test/diagrams/scanned_medium/diagrams_88.dot
new file mode 100644
index 0000000000000000000000000000000000000000..73ffead3cbad7ae168f2f5b655f4c95095f25fac
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_88.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=RL
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+	N4 [label="Customer Support Translation" color="#9C27B0" fillcolor="#E1BEE7" shape=box style=filled]
+	N5 [label="Cross_Lingual Communication" color="#00BCD4" fillcolor="#E0F7FA" shape=preparation style=filled]
+	N6 [label="Multimodal Translation" color="#00BCD4" fillcolor="#E0F7FA" shape=document style=filled]
+	N7 [label="API Integration for Translation Services" color="#81C784" fillcolor="#F1F8E9" shape=diamond style=filled]
+	N8 [label="Wearable Translation Devices" color="#81C784" fillcolor="#F1F8E9" shape=inputoutput style=filled]
+	N9 [label="Dialect Recognition" color="#00BCD4" fillcolor="#E0F7FA" shape=box style=filled]
+	N0 -> N1 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#9C27B0" penwidth=1.5 style=solid label="recognizes" dir=forward]
+	N3 -> N4 [color="#81C784" penwidth=1.5 style=dashed label="improves" dir=forward]
+	N4 -> N5 [color="#9C27B0" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N6 [color="#81C784" penwidth=1.5 style=dashed label="integrates" dir=forward]
+	N6 -> N7 [color="#9C27B0" penwidth=1.5 style=dashed label="pronounces" dir=forward]
+	N7 -> N8 [color="#9C27B0" penwidth=1.5 style=dashed label="learns" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed label="outputs" dir=forward]
+	N7 -> N4 [color="#000000" penwidth=1.5 style=solid label="deploys" dir=forward]
+	N1 -> N9 [color="#00BCD4" penwidth=1.5 style=solid label="researches" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_88.txt b/test/diagrams/scanned_medium/diagrams_88.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dce8987b13e02cef9db67a990cb4652d49e1fc31
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_88.txt
@@ -0,0 +1,11 @@
+<API Integration for Translation Services, deploys, Customer Support Translation>
+<API Integration for Translation Services, learns, Wearable Translation Devices>
+<Continuous Learning Models for Translation, improves, Customer Support Translation>
+<Cross_Lingual Communication, integrates, Multimodal Translation>
+<Customer Support Translation, connectedTo, Cross_Lingual Communication>
+<Domain_Specific Translation Models, connectedTo, Real_Time Document Translation>
+<Domain_Specific Translation Models, researches, Dialect Recognition>
+<Multimodal Translation, pronounces, API Integration for Translation Services>
+<Real_Time Document Translation, recognizes, Continuous Learning Models for Translation>
+<Speech Recognition, connectedTo, Domain_Specific Translation Models>
+<Wearable Translation Devices, outputs, Dialect Recognition>
diff --git a/test/diagrams/scanned_medium/diagrams_89.dot b/test/diagrams/scanned_medium/diagrams_89.dot
new file mode 100644
index 0000000000000000000000000000000000000000..9b7de21069dbb260e1f8a370de5741e906b80eea
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_89.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=TB
+	N0 [label="Flight Planning Software" color="#795548" fillcolor="#D7CCC8" shape=ellipse style=filled]
+	N1 [label="Drone Maintenance" color="#A1D7CD" fillcolor="#EDF5F3" shape=ellipse style=filled]
+	N2 [label="Drone Delivery Logistics" color="#FFE470" fillcolor="#FFFAE0" shape=preparation style=filled]
+	N3 [label="Aerial Photography" color="#A1D7CD" fillcolor="#EDF5F3" shape=hexagon style=filled]
+	N4 [label="Payload Integration" color="#795548" fillcolor="#D7CCC8" shape=database style=filled]
+	N5 [label="Drone Data Security" color="#795548" fillcolor="#D7CCC8" shape=action style=filled]
+	N6 [label="Communication Systems" color="#795548" fillcolor="#D7CCC8" shape=ellipse style=filled]
+	N7 [label="Sensor Integration" color="#795548" fillcolor="#D7CCC8" shape=hexagon style=filled]
+	N8 [label="Security Surveillance" color="#795548" fillcolor="#D7CCC8" shape=diamond style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=dashed label="records" dir=forward]
+	N1 -> N2 [color="#FFE470" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid label="audits" 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="#A1D7CD" penwidth=1.5 style=dashed label="sprays" dir=forward]
+	N6 -> N7 [color="#795548" penwidth=1.5 style=solid label="collects" dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=dashed label="navigates" dir=forward]
+	N4 -> N6 [color="#795548" penwidth=1.5 style=solid label="gathers" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_89.txt b/test/diagrams/scanned_medium/diagrams_89.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a48c1320faf9429da56c5f8f354cc328eba35e7f
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_89.txt
@@ -0,0 +1,9 @@
+<Aerial Photography, connectedTo, Payload Integration>
+<Communication Systems, collects, Sensor Integration>
+<Drone Data Security, sprays, Communication Systems>
+<Drone Delivery Logistics, audits, Aerial Photography>
+<Drone Maintenance, connectedTo, Drone Delivery Logistics>
+<Flight Planning Software, records, Drone Maintenance>
+<Payload Integration, connectedTo, Drone Data Security>
+<Payload Integration, gathers, Communication Systems>
+<Sensor Integration, navigates, Security Surveillance>
diff --git a/test/diagrams/scanned_medium/diagrams_9.dot b/test/diagrams/scanned_medium/diagrams_9.dot
new file mode 100644
index 0000000000000000000000000000000000000000..15bafe43163b4dfa546273c6254c810306f61440
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_9.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=LR
+	N0 [label="Cross_docking" color="#26A69A" fillcolor="#E0F2F1" shape=hexagon style=filled]
+	N1 [label="Damage Reporting" color="#66BB6A" fillcolor="#E8F5E9" shape=box style=filled]
+	N2 [label="Order Picking" color="#CFCFCF" fillcolor="#F6F6F6" shape=multipledocuments style=filled]
+	N3 [label="Rail Transport Coordination" color="#CFCFCF" fillcolor="#F6F6F6" shape=document style=filled]
+	N4 [label="Delay Notification" color="#26A69A" fillcolor="#E0F2F1" shape=box style=filled]
+	N5 [label="Route Optimization Software" color="#26A69A" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N6 [label="Sorting Center" color="#CFCFCF" fillcolor="#F6F6F6" shape=action style=filled]
+	N7 [label="Container Loading" color="#CFCFCF" fillcolor="#F6F6F6" shape=hexagon style=filled]
+	N8 [label="Demand Forecasting Integration" color="#66BB6A" fillcolor="#E8F5E9" shape=preparation style=filled]
+	N0 -> N1 [color="#CFCFCF" penwidth=1.5 style=solid dir=forward]
+	N1 -> N2 [color="#CFCFCF" penwidth=1.5 style=solid label="weighs" dir=forward]
+	N2 -> N3 [color="#CFCFCF" penwidth=1.5 style=dashed dir=forward]
+	N3 -> N4 [color="#66BB6A" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#26A69A" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#26A69A" penwidth=1.5 style=solid label="scans" dir=forward]
+	N6 -> N7 [color="#66BB6A" penwidth=1.5 style=solid label="loads" dir=forward]
+	N7 -> N8 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+	N8 -> N0 [color="#000000" penwidth=1.5 style=dashed label="receives" dir=forward]
+	N4 -> N2 [color="#66BB6A" penwidth=1.5 style=dashed dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_9.txt b/test/diagrams/scanned_medium/diagrams_9.txt
new file mode 100644
index 0000000000000000000000000000000000000000..14b67e5f52ae70f71df0403fdbe897fdafd25616
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_9.txt
@@ -0,0 +1,10 @@
+<Container Loading, connectedTo, Demand Forecasting Integration>
+<Cross_docking, connectedTo, Damage Reporting>
+<Damage Reporting, weighs, Order Picking>
+<Delay Notification, connectedTo, Order Picking>
+<Delay Notification, connectedTo, Route Optimization Software>
+<Demand Forecasting Integration, receives, Cross_docking>
+<Order Picking, connectedTo, Rail Transport Coordination>
+<Rail Transport Coordination, connectedTo, Delay Notification>
+<Route Optimization Software, scans, Sorting Center>
+<Sorting Center, loads, Container Loading>
diff --git a/test/diagrams/scanned_medium/diagrams_90.dot b/test/diagrams/scanned_medium/diagrams_90.dot
new file mode 100644
index 0000000000000000000000000000000000000000..f0dcdec4de7c64dbb3fd3251b7e0f56d3b9d3594
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_90.dot
@@ -0,0 +1,22 @@
+digraph {
+	rankdir=BT
+	N0 [label="Map Data Management" color="#FF5722" fillcolor="#FFCCBC" shape=parallelogram style=filled]
+	N1 [label="Software Development" color="#D2D2D2" fillcolor="#F0F0F0" shape=diamond style=filled]
+	N2 [label="Localization and Mapping" color="#FF5722" fillcolor="#FFCCBC" shape=rectangle style=filled]
+	N3 [label="Perception System" color="#BDBDBD" fillcolor="#F5F5F5" shape=rectangle style=filled]
+	N4 [label="Object Detection and Classification" color="#FF5722" fillcolor="#FFCCBC" shape=inputoutput style=filled]
+	N5 [label="Parking Assistance Systems" color="#FF5722" fillcolor="#FFCCBC" shape=document style=filled]
+	N6 [label="Redundancy in Sensors" color="#FF5722" fillcolor="#FFCCBC" shape=inputoutput style=filled]
+	N7 [label="Fail_Safe Systems" color="#BDBDBD" fillcolor="#F5F5F5" shape=database style=filled]
+	N8 [label="Predictive Maintenance" color="#BDBDBD" fillcolor="#F5F5F5" shape=box style=filled]
+	N0 -> N1 [color="#BDBDBD" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#BDBDBD" penwidth=1.5 style=solid label="alerts" dir=forward]
+	N2 -> N3 [color="#FF5722" penwidth=1.5 style=solid label="upgrades" dir=forward]
+	N3 -> N4 [color="#D2D2D2" penwidth=1.5 style=solid dir=forward]
+	N4 -> N5 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#BDBDBD" penwidth=1.5 style=solid dir=forward]
+	N6 -> N7 [color="#BDBDBD" penwidth=1.5 style=solid label="routes" dir=forward]
+	N7 -> N8 [color="#FF5722" penwidth=1.5 style=solid dir=forward]
+	N2 -> N8 [color="#D2D2D2" penwidth=1.5 style=dashed label="predicts" dir=forward]
+	N7 -> N1 [color="#BDBDBD" penwidth=1.5 style=solid label="senses" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_90.txt b/test/diagrams/scanned_medium/diagrams_90.txt
new file mode 100644
index 0000000000000000000000000000000000000000..09d17773db8b37edf330c934ca7fa340e1ffde24
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_90.txt
@@ -0,0 +1,10 @@
+<Fail_Safe Systems, connectedTo, Predictive Maintenance>
+<Fail_Safe Systems, senses, Software Development>
+<Localization and Mapping, predicts, Predictive Maintenance>
+<Localization and Mapping, upgrades, Perception System>
+<Map Data Management, connectedTo, Software Development>
+<Object Detection and Classification, connectedTo, Parking Assistance Systems>
+<Parking Assistance Systems, connectedTo, Redundancy in Sensors>
+<Perception System, connectedTo, Object Detection and Classification>
+<Redundancy in Sensors, routes, Fail_Safe Systems>
+<Software Development, alerts, Localization and Mapping>
diff --git a/test/diagrams/scanned_medium/diagrams_91.dot b/test/diagrams/scanned_medium/diagrams_91.dot
new file mode 100644
index 0000000000000000000000000000000000000000..da499f23b4ee8da7f184d87d8276908f883d1a05
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_91.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=RL
+	N0 [label="Demand Prediction" color="#DCE775" fillcolor="#FCFCE7" shape=inputoutput style=filled]
+	N1 [label="Autonomous Shared Vehicles" color="#FFF176" fillcolor="#FFFDE7" shape=database style=filled]
+	N2 [label="Platform Development" color="#DCE775" fillcolor="#FCFCE7" shape=vnode_shape style=filled]
+	N3 [label="User Registration" color="#FFF176" fillcolor="#FFFDE7" shape=inputoutput style=filled]
+	N4 [label="User Rating and Feedback Systems" color="#BDBDBD" fillcolor="#F5F5F5" shape=ellipse style=filled]
+	N5 [label="Regulatory Compliance" color="#DCE775" fillcolor="#FCFCE7" shape=vnode_shape style=filled]
+	N6 [label="Car_sharing Services" color="#BDBDBD" fillcolor="#F5F5F5" shape=document style=filled]
+	N7 [label="Parking Integration" color="#BDBDBD" fillcolor="#F5F5F5" shape=vnode_shape style=filled]
+	N0 -> N1 [color="#BDBDBD" penwidth=1.5 style=dashed label="unlocks" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#FFF176" penwidth=1.5 style=dashed label="secures" dir=forward]
+	N3 -> N4 [color="#DCE775" penwidth=1.5 style=dashed label="forecasts" dir=forward]
+	N4 -> N5 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N5 -> N6 [color="#BDBDBD" penwidth=1.5 style=dashed label="dispatches" dir=forward]
+	N6 -> N7 [color="#BDBDBD" penwidth=1.5 style=dashed label="books" dir=forward]
+	N1 -> N3 [color="#DCE775" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N4 [color="#DCE775" penwidth=1.5 style=solid label="verifies" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_91.txt b/test/diagrams/scanned_medium/diagrams_91.txt
new file mode 100644
index 0000000000000000000000000000000000000000..789904dc3d7f2fc0f62206c3460f0640506b43a4
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_91.txt
@@ -0,0 +1,9 @@
+<Autonomous Shared Vehicles, connectedTo, Platform Development>
+<Autonomous Shared Vehicles, connectedTo, User Registration>
+<Autonomous Shared Vehicles, verifies, User Rating and Feedback Systems>
+<Car_sharing Services, books, Parking Integration>
+<Demand Prediction, unlocks, Autonomous Shared Vehicles>
+<Platform Development, secures, User Registration>
+<Regulatory Compliance, dispatches, Car_sharing Services>
+<User Rating and Feedback Systems, connectedTo, Regulatory Compliance>
+<User Registration, forecasts, User Rating and Feedback Systems>
diff --git a/test/diagrams/scanned_medium/diagrams_92.dot b/test/diagrams/scanned_medium/diagrams_92.dot
new file mode 100644
index 0000000000000000000000000000000000000000..7ac367f06cb5468b7e0d3906c70281d08993fc1b
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_92.dot
@@ -0,0 +1,20 @@
+digraph {
+	rankdir=LR
+	N0 [label="Off_Street Parking Management" color="#26A69A" fillcolor="#E0F2F1" shape=ellipse style=filled]
+	N1 [label="Environmental Impact Monitoring" color="#AED581" fillcolor="#F0F4C3" shape=box style=filled]
+	N2 [label="Event Parking Management" color="#73C6BC" fillcolor="#D0EFEE" shape=database style=filled]
+	N3 [label="Permit Management" color="#AED581" fillcolor="#F0F4C3" shape=document style=filled]
+	N4 [label="Smart City Integration for Parking" color="#AED581" fillcolor="#F0F4C3" shape=preparation style=filled]
+	N5 [label="Intelligent Traffic Management Interaction" color="#26A69A" fillcolor="#E0F2F1" shape=document style=filled]
+	N6 [label="Security Surveillance" color="#AED581" fillcolor="#F0F4C3" shape=multipledocuments style=filled]
+	N7 [label="Demand Forecasting" color="#26A69A" fillcolor="#E0F2F1" shape=parallelogram style=filled]
+	N0 -> N1 [color="#73C6BC" penwidth=1.5 style=solid label="integrates" dir=forward]
+	N1 -> N2 [color="#000000" penwidth=1.5 style=dashed label="predicts" dir=forward]
+	N2 -> N3 [color="#AED581" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#73C6BC" penwidth=1.5 style=dashed label="automates" dir=forward]
+	N4 -> N5 [color="#26A69A" penwidth=1.5 style=dashed label="alerts" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=solid label="maintains" dir=forward]
+	N6 -> N7 [color="#73C6BC" penwidth=1.5 style=solid dir=forward]
+	N4 -> N1 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N5 -> N2 [color="#AED581" penwidth=1.5 style=dashed label="forecasts" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_93.dot b/test/diagrams/scanned_medium/diagrams_93.dot
new file mode 100644
index 0000000000000000000000000000000000000000..3390cbd1121ba257c0e84da10183867907afa3f5
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_93.dot
@@ -0,0 +1,21 @@
+digraph {
+	rankdir=TB
+	N0 [label="Post_Event Feedback Collection" color="#B0C5CD" fillcolor="#DFE7EB" shape=box style=filled]
+	N1 [label="Event Promotion Tools" color="#B0C5CD" fillcolor="#DFE7EB" shape=ellipse style=filled]
+	N2 [label="Queue Management" color="#B0C5CD" fillcolor="#DFE7EB" shape=parallelogram style=filled]
+	N3 [label="Scalper Prevention" color="#B0C5CD" fillcolor="#DFE7EB" shape=multipledocuments style=filled]
+	N4 [label="Public Transport Ticketing" color="#CD8FF2" fillcolor="#ECCFF5" shape=vnode_shape style=filled]
+	N5 [label="Group Booking Management" color="#B0C5CD" fillcolor="#DFE7EB" shape=predefinedprocess style=filled]
+	N6 [label="Order Confirmation" color="#CD8FF2" fillcolor="#ECCFF5" shape=box style=filled]
+	N7 [label="Theater Ticketing" color="#CD8FF2" fillcolor="#ECCFF5" shape=inputoutput style=filled]
+	N8 [label="Agent Network Management" color="#B0C5CD" fillcolor="#DFE7EB" shape=inputoutput style=filled]
+	N0 -> N1 [color="#000000" penwidth=1.5 style=solid label="markets" dir=forward]
+	N1 -> N2 [color="#8C9EFF" penwidth=1.5 style=dashed dir=forward]
+	N2 -> N3 [color="#000000" penwidth=1.5 style=solid dir=forward]
+	N3 -> N4 [color="#B0C5CD" penwidth=1.5 style=solid label="protects" dir=forward]
+	N4 -> N5 [color="#B0C5CD" penwidth=1.5 style=solid label="designs" dir=forward]
+	N5 -> N6 [color="#000000" penwidth=1.5 style=dashed label="upgrades" dir=forward]
+	N6 -> N7 [color="#CD8FF2" penwidth=1.5 style=solid dir=forward]
+	N7 -> N8 [color="#000000" penwidth=1.5 style=solid label="advertises" dir=forward]
+	N4 -> N2 [color="#B0C5CD" penwidth=1.5 style=solid dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_93.txt b/test/diagrams/scanned_medium/diagrams_93.txt
new file mode 100644
index 0000000000000000000000000000000000000000..34486ceee8da2ac39f08764c1347f7d61194b73d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_93.txt
@@ -0,0 +1,9 @@
+<Event Promotion Tools, connectedTo, Queue Management>
+<Group Booking Management, upgrades, Order Confirmation>
+<Order Confirmation, connectedTo, Theater Ticketing>
+<Post_Event Feedback Collection, markets, Event Promotion Tools>
+<Public Transport Ticketing, connectedTo, Queue Management>
+<Public Transport Ticketing, designs, Group Booking Management>
+<Queue Management, connectedTo, Scalper Prevention>
+<Scalper Prevention, protects, Public Transport Ticketing>
+<Theater Ticketing, advertises, Agent Network Management>
diff --git a/test/diagrams/scanned_medium/diagrams_94.dot b/test/diagrams/scanned_medium/diagrams_94.dot
new file mode 100644
index 0000000000000000000000000000000000000000..77f323c394d559c3ffa8a859843271f237ad0510
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_94.dot
@@ -0,0 +1,23 @@
+digraph {
+	rankdir=RL
+	N0 [label="Blockchain for Voting" color="#FFC085" fillcolor="#FFDAB9" shape=vnode_shape style=filled]
+	N1 [label="Election Official Training" color="#F06292" fillcolor="#FCE4EC" shape=hexagon style=filled]
+	N2 [label="Touchscreen Voting Machines" color="#F06292" fillcolor="#FCE4EC" shape=inputoutput style=filled]
+	N3 [label="Biometric Voter ID" color="#FFC085" fillcolor="#FFDAB9" shape=database style=filled]
+	N4 [label="Risk Management for Elections" color="#F06292" fillcolor="#FCE4EC" shape=rectangle style=filled]
+	N5 [label="Voter Privacy Protection" color="#F06292" fillcolor="#FCE4EC" shape=parallelogram style=filled]
+	N6 [label="Voting Machine Design" color="#FFC085" fillcolor="#FFDAB9" shape=rect style=filled]
+	N7 [label="Hardware Tamper Detection" color="#EAEFA5" fillcolor="#FDFCEB" shape=action style=filled]
+	N8 [label="Remote Voting Solutions" color="#F06292" fillcolor="#FCE4EC" shape=vnode_shape style=filled]
+	N9 [label="Optical Scan Systems" color="#EAEFA5" fillcolor="#FDFCEB" shape=predefinedprocess style=filled]
+	N0 -> N1 [color="#EAEFA5" penwidth=1.5 style=dashed dir=forward]
+	N1 -> N2 [color="#EAEFA5" penwidth=1.5 style=solid dir=forward]
+	N2 -> N3 [color="#F06292" penwidth=1.5 style=solid label="receives" dir=forward]
+	N3 -> N4 [color="#F06292" penwidth=1.5 style=dashed dir=forward]
+	N4 -> N5 [color="#FFC085" penwidth=1.5 style=solid label="encrypts" dir=forward]
+	N5 -> N6 [color="#FFC085" penwidth=1.5 style=dashed label="develops" dir=forward]
+	N6 -> N7 [color="#000000" penwidth=1.5 style=solid label="facilitates" dir=forward]
+	N7 -> N8 [color="#F06292" penwidth=1.5 style=solid label="tests" dir=forward]
+	N8 -> N9 [color="#000000" penwidth=1.5 style=dashed dir=forward]
+	N9 -> N3 [color="#EAEFA5" penwidth=1.5 style=dashed label="communicates" dir=forward]
+}
\ No newline at end of file
diff --git a/test/diagrams/scanned_medium/diagrams_94.txt b/test/diagrams/scanned_medium/diagrams_94.txt
new file mode 100644
index 0000000000000000000000000000000000000000..35160fb237e9d5b3166a6ea3809a44b9f3b3747c
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_94.txt
@@ -0,0 +1,10 @@
+<Biometric Voter ID, connectedTo, Risk Management for Elections>
+<Blockchain for Voting, connectedTo, Election Official Training>
+<Election Official Training, connectedTo, Touchscreen Voting Machines>
+<Hardware Tamper Detection, tests, Remote Voting Solutions>
+<Optical Scan Systems, communicates, Biometric Voter ID>
+<Remote Voting Solutions, connectedTo, Optical Scan Systems>
+<Risk Management for Elections, encrypts, Voter Privacy Protection>
+<Touchscreen Voting Machines, receives, Biometric Voter ID>
+<Voter Privacy Protection, develops, Voting Machine Design>
+<Voting Machine Design, facilitates, Hardware Tamper Detection>
diff --git a/test/diagrams/scanned_medium/diagrams_95.dot b/test/diagrams/scanned_medium/diagrams_95.dot
new file mode 100644
index 0000000000000000000000000000000000000000..49aa930203a7f6424dbf2f9779c45d5d61a6ab4d
--- /dev/null
+++ b/test/diagrams/scanned_medium/diagrams_95.dot
@@ -0,0 +1,24 @@
+digraph {
+	rankdir=BT
+	N0 [label="Advocacy Strategy" color="#FFCC7A" fillcolor="#FFF6D9" shape=inputoutput style=filled]
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new file mode 100644
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