What vehicle is to the right of the car?
The vehicle is a locomotive.
    src        edge_attr  dst
0     0  to the right of   16
1     0  to the right of    5
2     0   to the left of   20
3     0   to the left of   15
4     0   to the left of    3
..  ...              ...  ...
69   17   to the left of   12
70   18  to the right of    7
71   20  to the right of    5
72   20   to the left of   15
73   20  to the right of    0

[74 rows x 3 columns]