Do you see coats that are black?
No, there is a coat but it is green.
     src        edge_attr  dst
0      0  to the right of   11
1      0  to the right of    8
2      0  to the right of   13
3      1            above    9
4      1   to the left of    5
..   ...              ...  ...
132   21  to the right of    1
133   21  to the right of   17
134   22  to the right of   13
135   22  to the right of   18
136   22  to the right of   17

[137 rows x 3 columns]