On which side of the photo is the lamp?
The lamp is on the left of the image.
    src        edge_attr  dst
0     0               on    5
1     0  to the right of   12
2     0  to the right of   10
3     0  to the right of   16
4     1   to the left of   19
..  ...              ...  ...
65   21  to the right of   13
66   21   to the left of    2
67   21  to the right of    8
68   21   to the left of    3
69   21   to the left of    9

[70 rows x 3 columns]