Are the pedestrians to the left of a truck?
No, the pedestrians are to the left of the bus.
    src        edge_attr  dst
0     0  to the right of   19
1     0  to the right of    9
2     1  to the right of   20
3     1  to the right of    6
4     1   to the left of   18
..  ...              ...  ...
84   20  to the right of    7
85   20  to the right of    8
86   20   to the left of   18
87   20  to the right of    6
88   20   to the left of   14

[89 rows x 3 columns]