Which kind of vehicle is right of the trash can?
The vehicle is a bus.
     src        edge_attr  dst
0      0   to the left of   12
1      0  to the right of    1
2      0  to the right of   19
3      1  to the right of    4
4      1   to the left of   21
..   ...              ...  ...
97    21  to the right of    2
98    21  to the right of    4
99    21  to the right of    6
100   21  to the right of   16
101   21  to the right of   19

[102 rows x 3 columns]