Is the man behind a boy?
No, the man is behind an animal.
     src        edge_attr  dst
0      0   to the left of   14
1      0   to the left of    8
2      0   to the left of    3
3      0   to the left of    2
4      0   to the left of    4
..   ...              ...  ...
132   18  to the right of   16
133   18   to the left of   17
134   18   to the left of    5
135   18           behind    4
136   19  to the right of   15

[137 rows x 3 columns]