Is the metal vehicle to the left or to the right of the man on the platform?
The bus is to the left of the man.
    src        edge_attr  dst
0     0  to the right of   17
1     0  to the right of    6
2     0  to the right of   19
3     1   to the left of    2
4     1   to the left of    3
..  ...              ...  ...
85   24  to the right of   15
86   24   to the left of    3
87   24  to the right of   18
88   24  to the right of    9
89   24   to the left of   23

[90 rows x 3 columns]