Is the chair to the right or to the left of the guy?
The chair is to the left of the guy.
    src        edge_attr  dst
0     0   to the left of   18
1     0   to the left of   16
2     1           behind   18
3     1  to the right of   12
4     1  to the right of   10
..  ...              ...  ...
58   18  to the right of    3
59   18  to the right of    2
60   18  to the right of    0
61   19   to the left of   16
62   19   to the left of   18

[63 rows x 3 columns]