On which side of the picture are the people?
The people are on the left of the image.
     src        edge_attr  dst
0      0  to the right of   23
1      0  to the right of    3
2      1  to the right of   23
3      1  to the right of    3
4      1           behind    2
..   ...              ...  ...
163   27   to the left of    9
164   28   to the left of   19
165   28   to the left of   15
166   28          next to    3
167   28  to the right of    3

[168 rows x 3 columns]