Are there fences in this image?
Yes, there is a fence.
    src        edge_attr  dst
0     0   to the left of    3
1     0   to the left of    1
2     0   to the left of    6
3     1   to the left of    6
4     1   to the left of    3
..  ...              ...  ...
80   20  to the right of   10
81   20  to the right of   12
82   21   to the left of    8
83   21  to the right of   14
84   21  to the right of   13

[85 rows x 3 columns]