Do you see a train to the left of the red vehicle?
Yes, there is a train to the left of the train car.
    src        edge_attr  dst
0     0               on   13
1     0   to the left of    5
2     0   to the left of    4
3     0  to the right of   14
4     0  to the right of   12
..  ...              ...  ...
60   21   to the left of    4
61   21   to the left of   15
62   21   to the left of   17
63   21  to the right of    2
64   21  to the right of   11

[65 rows x 3 columns]