What do both the pole and the fence have in common?
The color, both the pole and the fence are green.
     src        edge_attr  dst
0      0  to the right of   19
1      0  to the right of   10
2      0  to the right of    7
3      0  to the right of   12
4      0  to the right of    9
..   ...              ...  ...
132   19   to the left of    8
133   19  to the right of   16
134   19   to the left of    0
135   19  to the right of    2
136   19   to the left of    5

[137 rows x 3 columns]