What is the vehicle to the right of the person that is to the right of the people?
The vehicle is a bus.
    src        edge_attr  dst
0     0          driving    5
1     0  to the right of    1
2     0   to the left of    2
3     0   to the left of   16
4     1               on    5
..  ...              ...  ...
57   16  to the right of    1
58   16  to the right of    5
59   17  to the right of    7
60   17   to the left of    5
61   17   to the left of    9

[62 rows x 3 columns]