Are there people to the left of the truck?
No, the person is to the right of the truck.
     src        edge_attr  dst
0      0  to the right of    9
1      0  to the right of   17
2      0  to the right of   14
3      0  to the right of   23
4      0  to the right of    2
..   ...              ...  ...
101   21  to the right of   19
102   22   to the left of   24
103   23   to the left of    0
104   24  to the right of    3
105   24  to the right of   22

[106 rows x 3 columns]