diff --git a/3DBiCar/1346/metadata.json b/3DBiCar/1346/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..14a56eaa22b92e6cd98284d94353e153710ce4ca
--- /dev/null
+++ b/3DBiCar/1346/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "hippo",
+  "style": "hand_drawn",
+  "source": "http://mms1.baidu.com/it/u=980906926,1442538331&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=472&h=642"
+}
\ No newline at end of file
diff --git a/3DBiCar/1363/metadata.json b/3DBiCar/1363/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..0fc535c434f234a4e63b0b5ff447b066bd8e173a
--- /dev/null
+++ b/3DBiCar/1363/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "rabit",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1367/metadata.json b/3DBiCar/1367/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..583c3c6fa8e12d0d1d3f120a33ced93c6139c3a0
--- /dev/null
+++ b/3DBiCar/1367/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "dog",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1368/metadata.json b/3DBiCar/1368/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..cfa08044dae8ee22fe5ed691fb784cbdddfd4ad5
--- /dev/null
+++ b/3DBiCar/1368/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1375/metadata.json b/3DBiCar/1375/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..e3487b6cca6845a7a60f43ace3da4a9571f02cda
--- /dev/null
+++ b/3DBiCar/1375/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "computer_design",
+  "source": "http://5b0988e595225.cdn.sohucs.com/images/20190701/5b399543454a4236a5ef628ce9acc52d.jpeg"
+}
\ No newline at end of file
diff --git a/3DBiCar/139/metadata.json b/3DBiCar/139/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..cfa08044dae8ee22fe5ed691fb784cbdddfd4ad5
--- /dev/null
+++ b/3DBiCar/139/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1390/metadata.json b/3DBiCar/1390/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..63eaeece52dd12783050435614a07bf206f4a1f1
--- /dev/null
+++ b/3DBiCar/1390/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Bear",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1393/metadata.json b/3DBiCar/1393/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..c67457f310a11299c5e92fa0c504653f67e1ed5a
--- /dev/null
+++ b/3DBiCar/1393/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "fox",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1401/metadata.json b/3DBiCar/1401/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..0fc535c434f234a4e63b0b5ff447b066bd8e173a
--- /dev/null
+++ b/3DBiCar/1401/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "rabit",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1421/metadata.json b/3DBiCar/1421/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..200a5ceeeff1426e4c2eb4d29da1c96117ea2fec
--- /dev/null
+++ b/3DBiCar/1421/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "elephant",
+  "style": "picture_book",
+  "source": "http://mms1.baidu.com/it/u=4132275364,1799178187&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=375&h=500"
+}
\ No newline at end of file
diff --git a/3DBiCar/1535/metadata.json b/3DBiCar/1535/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..63eaeece52dd12783050435614a07bf206f4a1f1
--- /dev/null
+++ b/3DBiCar/1535/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Bear",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1540/metadata.json b/3DBiCar/1540/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..c67457f310a11299c5e92fa0c504653f67e1ed5a
--- /dev/null
+++ b/3DBiCar/1540/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "fox",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1557/metadata.json b/3DBiCar/1557/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..8a46237f9b3d2517d96d0e948df2138cef194b0c
--- /dev/null
+++ b/3DBiCar/1557/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "fox",
+  "style": "picture_book",
+  "source": "http://mms0.baidu.com/it/u=2143822840,2363060659&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=500&h=696"
+}
\ No newline at end of file
diff --git a/3DBiCar/156/metadata.json b/3DBiCar/156/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..cfa08044dae8ee22fe5ed691fb784cbdddfd4ad5
--- /dev/null
+++ b/3DBiCar/156/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1565/metadata.json b/3DBiCar/1565/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..c67457f310a11299c5e92fa0c504653f67e1ed5a
--- /dev/null
+++ b/3DBiCar/1565/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "fox",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/157/metadata.json b/3DBiCar/157/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..fbca8a40f3ddd9cd1c58b703ea801c6f863e660e
--- /dev/null
+++ b/3DBiCar/157/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "monkey",
+  "style": "picture_book",
+  "source": "http://mms1.baidu.com/it/u=3522030162,863454243&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=500&h=500"
+}
\ No newline at end of file
diff --git a/3DBiCar/1573/metadata.json b/3DBiCar/1573/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..55bb5d4c8f40dfb163bd334ac3658fa305ae3dc7
--- /dev/null
+++ b/3DBiCar/1573/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Mouse",
+  "style": "picture_book",
+  "source": "http://mms1.baidu.com/it/u=2733219769,901477465&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=483&h=500"
+}
\ No newline at end of file
diff --git a/3DBiCar/1580/metadata.json b/3DBiCar/1580/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..975c62d70d8a023bd8eef5991eb92577b9d55138
--- /dev/null
+++ b/3DBiCar/1580/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "hand_drawn",
+  "source": "http://mms0.baidu.com/it/u=846862237,2014499759&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=667&h=500"
+}
\ No newline at end of file
diff --git a/3DBiCar/1586/metadata.json b/3DBiCar/1586/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..5e49836669e68915aa80fe318048c40a35fc2a12
--- /dev/null
+++ b/3DBiCar/1586/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Tiger",
+  "style": "picture_book",
+  "source": "http://mms2.baidu.com/it/u=1741134731,2375916533&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=336&h=500"
+}
\ No newline at end of file
diff --git a/3DBiCar/1588/metadata.json b/3DBiCar/1588/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..18daacf3d6b37de86d3a5732f4edd667671fa208
--- /dev/null
+++ b/3DBiCar/1588/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Tiger",
+  "style": "picture_book",
+  "source": "http://mms2.baidu.com/it/u=2830873074,1576039013&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=474&h=628"
+}
\ No newline at end of file
diff --git a/3DBiCar/16/metadata.json b/3DBiCar/16/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..f80c6c1d209d2d17a44a8d4597d0f7ab429cc89a
--- /dev/null
+++ b/3DBiCar/16/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "monkey",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1605/metadata.json b/3DBiCar/1605/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..5fe53a56b8393f4ded2272449b07ecd5b106cba1
--- /dev/null
+++ b/3DBiCar/1605/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Mouse",
+  "style": "picture_book",
+  "source": "-"
+}
\ No newline at end of file
diff --git a/3DBiCar/1608/metadata.json b/3DBiCar/1608/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..f434597bf988a7a7777a40bb2c230b06d8c42135
--- /dev/null
+++ b/3DBiCar/1608/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "hippo",
+  "style": "computer_design",
+  "source": "https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcQy3mCYO2Ts4VT0XJ0KSA1sK4w9xKMfw42tZFwPVUQwC_ucyAey"
+}
\ No newline at end of file
diff --git a/3DBiCar/1617/metadata.json b/3DBiCar/1617/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..583c3c6fa8e12d0d1d3f120a33ced93c6139c3a0
--- /dev/null
+++ b/3DBiCar/1617/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "dog",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1619/metadata.json b/3DBiCar/1619/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..d187692fa4cf2616389c5732408affdb7c40af11
--- /dev/null
+++ b/3DBiCar/1619/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Mouse",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1625/metadata.json b/3DBiCar/1625/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..7d6a1cc1f748df20dfcdf6993785d64d153410d0
--- /dev/null
+++ b/3DBiCar/1625/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Bear",
+  "style": "picture_book",
+  "source": "http://mms0.baidu.com/it/u=582481600,910387531&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=500&h=500"
+}
\ No newline at end of file
diff --git a/3DBiCar/1634/metadata.json b/3DBiCar/1634/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..8190ccf07032cc462684d4cb79902a3ff3207c3c
--- /dev/null
+++ b/3DBiCar/1634/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Mouse",
+  "style": "picture_book",
+  "source": "http://mms2.baidu.com/it/u=2604960471,1188252906&fm=253&app=120&f=JPEG&fmt=auto&q=75?w=350&h=350"
+}
\ No newline at end of file
diff --git a/3DBiCar/1638/metadata.json b/3DBiCar/1638/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..a7b74fdc5efa3f146ec45629ae0fb05007c7f5e3
--- /dev/null
+++ b/3DBiCar/1638/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "deer",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1639/metadata.json b/3DBiCar/1639/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..583c3c6fa8e12d0d1d3f120a33ced93c6139c3a0
--- /dev/null
+++ b/3DBiCar/1639/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "dog",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/164/metadata.json b/3DBiCar/164/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..bc3b08f04e3b830660ce61c7222a881f8a4e37dc
--- /dev/null
+++ b/3DBiCar/164/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Cat",
+  "style": "picture_book",
+  "source": "http://mms0.baidu.com/it/u=2169370335,439903240&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=650&h=366"
+}
\ No newline at end of file
diff --git a/3DBiCar/1657/metadata.json b/3DBiCar/1657/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..a313ec0f2fe12cbef235b8991b8827d84aacc095
--- /dev/null
+++ b/3DBiCar/1657/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "cattle",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1659/metadata.json b/3DBiCar/1659/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..cfa08044dae8ee22fe5ed691fb784cbdddfd4ad5
--- /dev/null
+++ b/3DBiCar/1659/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1665/metadata.json b/3DBiCar/1665/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..54ce31e10974124d937f5eaa8886f6475012113e
--- /dev/null
+++ b/3DBiCar/1665/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Cat",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1681/metadata.json b/3DBiCar/1681/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..cfa08044dae8ee22fe5ed691fb784cbdddfd4ad5
--- /dev/null
+++ b/3DBiCar/1681/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1694/metadata.json b/3DBiCar/1694/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..cfa08044dae8ee22fe5ed691fb784cbdddfd4ad5
--- /dev/null
+++ b/3DBiCar/1694/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/170/metadata.json b/3DBiCar/170/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..5ec3b249cde83c7dae6e99f20c365ab03dd2bb56
--- /dev/null
+++ b/3DBiCar/170/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Cat",
+  "style": "picture_book",
+  "source": "http://mms1.baidu.com/it/u=2701979630,3895240081&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=500&h=385"
+}
\ No newline at end of file
diff --git a/3DBiCar/1705/metadata.json b/3DBiCar/1705/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..68c0660c98ab522317f89105ef6740803cfc8698
--- /dev/null
+++ b/3DBiCar/1705/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "dog",
+  "style": "picture_book",
+  "source": "http://mms0.baidu.com/it/u=2635356862,2842448033&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=750&h=444"
+}
\ No newline at end of file
diff --git a/3DBiCar/171/metadata.json b/3DBiCar/171/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..c67457f310a11299c5e92fa0c504653f67e1ed5a
--- /dev/null
+++ b/3DBiCar/171/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "fox",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1737/metadata.json b/3DBiCar/1737/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..ee8cbacae3334a5553be347ec1f4853eec404736
--- /dev/null
+++ b/3DBiCar/1737/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Mouse",
+  "style": "picture_book",
+  "source": "https://pbs.twimg.com/media/Et68ZaQVoAEMhKo?format=jpg&name=900x900"
+}
\ No newline at end of file
diff --git a/3DBiCar/1738/metadata.json b/3DBiCar/1738/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..1095a159812ec71e47f5c2c87cfedf73fd13a125
--- /dev/null
+++ b/3DBiCar/1738/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Tiger",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/176/metadata.json b/3DBiCar/176/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..f5cc7529f93d401d1aa5617c066c1ccbf3af2956
--- /dev/null
+++ b/3DBiCar/176/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "monkey",
+  "style": "picture_book",
+  "source": "http://mms1.baidu.com/it/u=549940882,3792821658&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=735&h=500"
+}
\ No newline at end of file
diff --git a/3DBiCar/1762/metadata.json b/3DBiCar/1762/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..6613e326d9236c4d64d8988653725c6a47a9a754
--- /dev/null
+++ b/3DBiCar/1762/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "cattle",
+  "style": "computer_design",
+  "source": "http://mms1.baidu.com/it/u=96650744,2791663842&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=400&h=400"
+}
\ No newline at end of file
diff --git a/3DBiCar/1764/metadata.json b/3DBiCar/1764/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..de6afe0a074a882881d3bc32f274b0d5ec16557e
--- /dev/null
+++ b/3DBiCar/1764/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "elephant",
+  "style": "picture_book",
+  "source": "https://www.ecoledesloisirs.fr/sites/default/files/styles/couverture_livre/public/couverture/9782211095594.jpg?itok=qRltBv8z"
+}
\ No newline at end of file
diff --git a/3DBiCar/1777/metadata.json b/3DBiCar/1777/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..24698157e6f280fbe9d61a0cb17b2367d52dd1a5
--- /dev/null
+++ b/3DBiCar/1777/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "hippo",
+  "style": "picture_book",
+  "source": "https://img.lovepik.com/back_origin_pic/05/54/88/9cb02351160520db16a3ab1e2b786a01.jpg_wh300.jpg"
+}
\ No newline at end of file
diff --git a/3DBiCar/1778/metadata.json b/3DBiCar/1778/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..b7843432fc3b95c73eb6c7241d5c2edb346c0b12
--- /dev/null
+++ b/3DBiCar/1778/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "pig",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1786/metadata.json b/3DBiCar/1786/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..92ae0347d3ee29f3713f384665ebb675b9073ac7
--- /dev/null
+++ b/3DBiCar/1786/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "sheep",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1834/metadata.json b/3DBiCar/1834/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..71e06c6e66bf9ef656721b4467a9a204889b1a59
--- /dev/null
+++ b/3DBiCar/1834/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "deer+horse",
+  "style": "picture_book",
+  "source": "http://mms0.baidu.com/it/u=258904387,3304144309&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=500&h=568"
+}
\ No newline at end of file
diff --git a/3DBiCar/1837/metadata.json b/3DBiCar/1837/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..27297f46940baf30a79aa63c5abdd77ecb2a2a06
--- /dev/null
+++ b/3DBiCar/1837/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "hippo",
+  "style": "picture_book",
+  "source": "http://mms2.baidu.com/it/u=2712309473,3482897618&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=677&h=500"
+}
\ No newline at end of file
diff --git a/3DBiCar/184/metadata.json b/3DBiCar/184/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..583c3c6fa8e12d0d1d3f120a33ced93c6139c3a0
--- /dev/null
+++ b/3DBiCar/184/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "dog",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1844/metadata.json b/3DBiCar/1844/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..a313ec0f2fe12cbef235b8991b8827d84aacc095
--- /dev/null
+++ b/3DBiCar/1844/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "cattle",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1847/metadata.json b/3DBiCar/1847/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..51eadd64f7ab9bcc6c60d20a1906f3253f341303
--- /dev/null
+++ b/3DBiCar/1847/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "cattle",
+  "style": "computer_design",
+  "source": "http://mms1.baidu.com/it/u=2841186081,841771398&fm=253&app=138&f=PNG&fmt=auto&q=75?w=497&h=395"
+}
\ No newline at end of file
diff --git a/3DBiCar/1849/metadata.json b/3DBiCar/1849/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..7c525a0f078c7b18d381c665d3b74a420161444f
--- /dev/null
+++ b/3DBiCar/1849/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "deer+horse",
+  "style": "picture_book",
+  "source": "http://mms1.baidu.com/it/u=4098522184,711141971&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=500&h=577"
+}
\ No newline at end of file
diff --git a/3DBiCar/1856/metadata.json b/3DBiCar/1856/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..583c3c6fa8e12d0d1d3f120a33ced93c6139c3a0
--- /dev/null
+++ b/3DBiCar/1856/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "dog",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1862/metadata.json b/3DBiCar/1862/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..00e1073782b7dfd2280494f7d0d4bab641fb44db
--- /dev/null
+++ b/3DBiCar/1862/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Tiger",
+  "style": "picture_book",
+  "source": "http://mms2.baidu.com/it/u=225415513,3918685579&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=750&h=487"
+}
\ No newline at end of file
diff --git a/3DBiCar/187/metadata.json b/3DBiCar/187/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..cfa08044dae8ee22fe5ed691fb784cbdddfd4ad5
--- /dev/null
+++ b/3DBiCar/187/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1877/metadata.json b/3DBiCar/1877/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..cacd7972b77cbbe93a16aa13c2bd04fd1fada045
--- /dev/null
+++ b/3DBiCar/1877/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Cat",
+  "style": "picture_book",
+  "source": "http://mms1.baidu.com/it/u=1426805206,3803565643&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=490&h=365"
+}
\ No newline at end of file
diff --git a/3DBiCar/1878/metadata.json b/3DBiCar/1878/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..a44acec1026c85db810611847b3d55f2fba09f64
--- /dev/null
+++ b/3DBiCar/1878/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Cat",
+  "style": "computer_design",
+  "source": "https://img.zcool.cn/community/01e13c602b87eb11013e3991375430.jpg?x-oss-process=image/auto-orient,1/resize,m_lfit,w_1280,limit_1/sharpen,100/format,webp/quality,q_100"
+}
\ No newline at end of file
diff --git a/3DBiCar/1883/metadata.json b/3DBiCar/1883/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..cfa08044dae8ee22fe5ed691fb784cbdddfd4ad5
--- /dev/null
+++ b/3DBiCar/1883/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1885/metadata.json b/3DBiCar/1885/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..cfa08044dae8ee22fe5ed691fb784cbdddfd4ad5
--- /dev/null
+++ b/3DBiCar/1885/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1918/metadata.json b/3DBiCar/1918/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..4142278a24cead4be069773542fc63e89b7915ca
--- /dev/null
+++ b/3DBiCar/1918/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "elephant",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1923/metadata.json b/3DBiCar/1923/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..d8d34201f1b6b83c93b8358d25e09101c0a7646b
--- /dev/null
+++ b/3DBiCar/1923/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "hippo",
+  "style": "picture_book",
+  "source": "http://mms1.baidu.com/it/u=519274384,3859961939&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=667&h=500"
+}
\ No newline at end of file
diff --git a/3DBiCar/1926/metadata.json b/3DBiCar/1926/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..584d3818644a5a35be672e7573977cfa28c70335
--- /dev/null
+++ b/3DBiCar/1926/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "pig",
+  "style": "computer_design",
+  "source": "http://mms1.baidu.com/it/u=1027162264,1162338801&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=500&h=674"
+}
\ No newline at end of file
diff --git a/3DBiCar/1929/metadata.json b/3DBiCar/1929/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..0fc535c434f234a4e63b0b5ff447b066bd8e173a
--- /dev/null
+++ b/3DBiCar/1929/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "rabit",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1931/metadata.json b/3DBiCar/1931/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..d7f12f37fe7429f4053c767d6502c6d830e82b5b
--- /dev/null
+++ b/3DBiCar/1931/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "dog",
+  "style": "picture_book",
+  "source": "http://mms2.baidu.com/it/u=3676389094,3777552967&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=500&h=224"
+}
\ No newline at end of file
diff --git a/3DBiCar/194/metadata.json b/3DBiCar/194/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..54ce31e10974124d937f5eaa8886f6475012113e
--- /dev/null
+++ b/3DBiCar/194/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Cat",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1943/metadata.json b/3DBiCar/1943/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..a50409cc45518ae6b8ebac42344a77406f5fa80d
--- /dev/null
+++ b/3DBiCar/1943/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "deer+horse",
+  "style": "picture_book",
+  "source": "http://mms0.baidu.com/it/u=2323194658,1467288047&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=500&h=375"
+}
\ No newline at end of file
diff --git a/3DBiCar/1945/metadata.json b/3DBiCar/1945/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..f80c6c1d209d2d17a44a8d4597d0f7ab429cc89a
--- /dev/null
+++ b/3DBiCar/1945/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "monkey",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1948/metadata.json b/3DBiCar/1948/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..b7843432fc3b95c73eb6c7241d5c2edb346c0b12
--- /dev/null
+++ b/3DBiCar/1948/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "pig",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1951/metadata.json b/3DBiCar/1951/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..0fc535c434f234a4e63b0b5ff447b066bd8e173a
--- /dev/null
+++ b/3DBiCar/1951/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "rabit",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/196/metadata.json b/3DBiCar/196/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..60fe965697412feab088b99822b821a2b52cf30f
--- /dev/null
+++ b/3DBiCar/196/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Cat",
+  "style": "picture_book",
+  "source": "http://mms1.baidu.com/it/u=1191669553,2441504422&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=500&h=541"
+}
\ No newline at end of file
diff --git a/3DBiCar/1961/metadata.json b/3DBiCar/1961/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..c67457f310a11299c5e92fa0c504653f67e1ed5a
--- /dev/null
+++ b/3DBiCar/1961/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "fox",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1973/metadata.json b/3DBiCar/1973/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..583c3c6fa8e12d0d1d3f120a33ced93c6139c3a0
--- /dev/null
+++ b/3DBiCar/1973/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "dog",
+  "style": "render",
+  "source": "None"
+}
\ No newline at end of file
diff --git a/3DBiCar/1983/metadata.json b/3DBiCar/1983/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..42d651a2ab2ad0958b3cab315798db8d61083030
--- /dev/null
+++ b/3DBiCar/1983/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "dog",
+  "style": "computer_design",
+  "source": "http://mms0.baidu.com/it/u=114343021,3302078018&fm=253&app=138&f=JPEG&fmt=auto&q=75?w=500&h=552"
+}
\ No newline at end of file
diff --git a/3DBiCar/1984/metadata.json b/3DBiCar/1984/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..0f2eb70e3bc6c9abf000008c47d13a38caae87e1
--- /dev/null
+++ b/3DBiCar/1984/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Human",
+  "style": "computer_design",
+  "source": "https://5b0988e595225.cdn.sohucs.com/a_auto,c_cut,x_9,y_21,w_181,h_181/images/20180722/b06958edc02f4116839f075501cc2c43.jpeg"
+}
\ No newline at end of file
diff --git a/3DBiCar/1993/metadata.json b/3DBiCar/1993/metadata.json
new file mode 100644
index 0000000000000000000000000000000000000000..a202ec75e99fe71f44bf8b671ca0de527023f170
--- /dev/null
+++ b/3DBiCar/1993/metadata.json
@@ -0,0 +1,5 @@
+{
+  "category": "Tiger",
+  "style": "hand_drawn",
+  "source": "http://img36.ddimg.cn/imgother/201502/04_2/201502041638392226.jpg"
+}
\ No newline at end of file