On which side is the black fence?
The fence is on the left of the image.
     src        edge_attr  dst
0      0   to the left of   23
1      0  to the right of    1
2      0               on   19
3      0  to the right of    7
4      0   to the left of   20
..   ...              ...  ...
189   41  to the right of   37
190   42  to the right of   26
191   42  to the right of   33
192   42  to the right of    2
193   42  to the right of   11

[194 rows x 3 columns]