What kind of vehicle is to the right of the backpack?
The vehicle is a bus.
     src        edge_attr  dst
0      1  to the right of    5
1      1  to the right of    2
2      1  to the right of   12
3      2   to the left of    7
4      2   to the left of   10
..   ...              ...  ...
108   23  to the right of    9
109   23  to the right of   10
110   23  to the right of    7
111   23   to the left of    4
112   23  to the right of    8

[113 rows x 3 columns]