Are there any fences or life jackets in this image?
Yes, there is a fence.
    src        edge_attr  dst
0     1  to the right of    2
1     1   to the left of    4
2     1  to the right of   22
3     1  to the right of    9
4     1  to the right of    6
..  ...              ...  ...
65   21  to the right of   16
66   22   to the left of    1
67   22   to the left of    2
68   22   to the left of   11
69   22   to the left of   16

[70 rows x 3 columns]