On which side of the photo is the large vehicle?
The truck is on the left of the image.
    src        edge_attr  dst
0     1   to the left of    8
1     3  to the right of    8
2     4  to the right of   25
3     4               on   15
4     4  to the right of   11
..  ...              ...  ...
65   24               on    8
66   25   to the left of    6
67   25   to the left of    4
68   26           behind   23
69   26           behind   11

[70 rows x 3 columns]