Do you see either any frisbees or fences?
Yes, there is a fence.
    src        edge_attr  dst
0     0  to the right of   16
1     0  to the right of   15
2     0   to the left of    3
3     0   to the left of    1
4     0   to the left of   12
..  ...              ...  ...
89   19  to the right of    4
90   19   to the left of   11
91   19   to the left of   13
92   19  to the right of    1
93   19           behind    1

[94 rows x 3 columns]