Are there fences or trash cans?
Yes, there is a fence.
    src        edge_attr  dst
0     0   to the left of   13
1     0   to the left of   15
2     0   to the left of   16
3     0   to the left of    2
4     0   to the left of    1
..  ...              ...  ...
68   23   to the left of    8
69   23   to the left of   25
70   23  to the right of   14
71   25  to the right of   23
72   25  to the right of   22

[73 rows x 3 columns]