On which side of the photo is the ladder?
The ladder is on the left of the image.
     src        edge_attr  dst
0      0  to the right of   16
1      0   to the left of   20
2      0   to the left of   23
3      0   to the left of   22
4      0  to the right of    1
..   ...              ...  ...
108   24   to the left of   14
109   24   to the left of   13
110   25  to the right of   24
111   25  to the right of   14
112   25  to the right of   13

[113 rows x 3 columns]