On which side of the photo is the concrete fence?
The fence is on the left of the image.
    src        edge_attr  dst
0     0   to the left of   19
1     0   to the left of    2
2     1   to the left of   19
3     1  to the right of    6
4     1   to the left of    2
..  ...              ...  ...
79   21   to the left of    8
80   21            under    7
81   21   to the left of    3
82   22               on   14
83   22  to the right of   11

[84 rows x 3 columns]