Is the man to the right or to the left of the person the wheelchair is behind of?
The man is to the left of the woman.
    src        edge_attr  dst
0     0  to the right of    1
1     0   to the left of    2
2     0  to the right of    4
3     0  to the right of    3
4     1   to the left of    9
..  ...              ...  ...
59   12   to the left of    2
60   12  to the right of    3
61   12  to the right of    4
62   13  to the right of    6
63   13  to the right of   11

[64 rows x 3 columns]