Do you see any vans to the left of the bus?
No, there is a car to the left of the bus.
    src        edge_attr  dst
0     0   to the left of   14
1     0   to the left of   13
2     0   to the left of    1
3     0   to the left of    7
4     1  to the right of    0
..  ...              ...  ...
62   16  to the right of    7
63   18  to the right of    3
64   18  to the right of   10
65   18   to the left of   15
66   18  to the right of    8

[67 rows x 3 columns]