Is the black bag to the right or to the left of the man that is standing?
The bag is to the right of the man.
    src        edge_attr  dst
0     0   to the left of   18
1     0   to the left of   20
2     0   to the left of    2
3     0   to the left of   21
4     1  to the right of   14
..  ...              ...  ...
56   21  to the right of    2
57   21  to the right of    0
58   21   to the left of    6
59   21  to the right of   13
60   21   to the left of    3

[61 rows x 3 columns]