Is the can to the left or to the right of the person that is to the left of the dog?
The can is to the left of the person.
    src        edge_attr  dst
0     0  to the right of    3
1     0  to the right of   17
2     2   to the left of    9
3     2   to the left of   17
4     3   to the left of    0
..  ...              ...  ...
88   19  to the right of   17
89   20   to the left of    8
90   20  to the right of   14
91   20   to the left of   12
92   20   to the left of    6

[93 rows x 3 columns]