On which side of the image are the people?
The people are on the left of the image.
    src        edge_attr  dst
0     0   to the left of   26
1     0   to the left of   20
2     0  to the right of   27
3     0   to the left of    1
4     1  to the right of   27
..  ...              ...  ...
63   26   to the left of   19
64   27   to the left of    1
65   27   to the left of    0
66   27   to the left of    7
67   27   to the left of    4

[68 rows x 3 columns]