On which side is the fence?
The fence is on the right of the image.
    src        edge_attr  dst
0     0   to the left of    9
1     0   to the left of   10
2     0   to the left of   14
3     0   to the left of    4
4     0   to the left of   11
..  ...              ...  ...
61   16   to the left of   10
62   17   to the left of    5
63   17  to the right of    8
64   17  to the right of   10
65   19  to the right of   11

[66 rows x 3 columns]