Which side of the image is the fence on?
The fence is on the right of the image.
    src        edge_attr  dst
0     0               in    7
1     0               by   17
2     0   to the left of   17
3     0   to the left of   14
4     0   to the left of    8
..  ...              ...  ...
58   18   to the left of   10
59   18   to the left of    9
60   18   to the left of    0
61   18   to the left of   15
62   19  to the right of   17

[63 rows x 3 columns]