Do you see any fences to the right of the people on the right side of the photo?
No, the fence is to the left of the people.
    src        edge_attr  dst
0     0   to the left of   13
1     0            below    1
2     1               in   18
3     1       sitting on    0
4     1   to the left of    2
..  ...              ...  ...
94   23  to the right of    1
95   23  to the right of   16
96   24   to the left of    9
97   24  to the right of    5
98   24  to the right of    1

[99 rows x 3 columns]