Are there either any snowboards or fences?
Yes, there is a fence.
    src        edge_attr  dst
0     0   to the left of   19
1     0   to the left of   13
2     0  to the right of    3
3     0  to the right of    2
4     0   to the left of    5
..  ...              ...  ...
83   24   to the left of   21
84   24   to the left of    8
85   24   to the left of   14
86   24   to the left of   25
87   25  to the right of   24

[88 rows x 3 columns]