On which side of the picture are the people?
The people are on the right of the image.
     src        edge_attr  dst
0      0   to the left of   26
1      0   to the left of    1
2      0   to the left of   24
3      0   to the left of   19
4      1  to the right of    0
..   ...              ...  ...
198   26   to the left of   25
199   26   to the left of   12
200   26   to the left of   14
201   26   to the left of   15
202   26   to the left of   21

[203 rows x 3 columns]