Is the metal fence in the top part of the photo?
Yes, the fence is in the top of the image.
    src        edge_attr  dst
0     0   to the left of   28
1     0   to the left of   13
2     1   to the left of   28
3     1   to the left of   13
4     2   to the left of   24
..  ...              ...  ...
87   28   to the left of   21
88   28  to the right of    1
89   28  to the right of    0
90   28   to the left of    9
91   28   to the left of   24

[92 rows x 3 columns]