What is the vehicle on the street called?
The vehicle is a bus.
    src        edge_attr  dst
0     0               of   16
1     0  to the right of    2
2     1  to the right of    7
3     2  to the right of   18
4     2   to the left of    0
..  ...              ...  ...
85   20   to the left of   19
86   20   to the left of    9
87   20  to the right of    5
88   20   to the left of   16
89   20  to the right of   18

[90 rows x 3 columns]