What kind of vehicle is on the street?
The vehicles are cars.
    src        edge_attr  dst
0     0  to the right of   14
1     0           around   16
2     2   to the left of    7
3     2  to the right of    4
4     3          holding    2
..  ...              ...  ...
65   20   to the left of   11
66   21  to the right of   15
67   21  to the right of   13
68   21  to the right of    3
69   21               on    7

[70 rows x 3 columns]