Which kind of vehicle is right of the person?
The vehicle is a truck.
    src        edge_attr  dst
0     1           behind   23
1     1           behind   21
2     1           beside   23
3     1  to the right of    8
4     1  to the right of   10
..  ...              ...  ...
73   24  to the right of   20
74   24  to the right of   13
75   25  to the right of    6
76   25   to the left of   13
77   25  to the right of    4

[78 rows x 3 columns]