What vehicle is this?
This is a bus.
    src        edge_attr  dst
0     0               on    5
1     0   to the left of    2
2     0  to the right of    4
3     0  to the right of    7
4     0   to the left of   18
..  ...              ...  ...
66   19  to the right of   20
67   19   to the left of   10
68   19   to the left of   17
69   19   to the left of    5
70   20   to the left of   19

[71 rows x 3 columns]