What kind of vehicle is to the right of the person that is wearing a uniform?
The vehicle is a van.
     src        edge_attr  dst
0      0  to the right of   19
1      0   to the left of    5
2      0   to the left of    1
3      0   to the left of   15
4      0  to the right of    7
..   ...              ...  ...
142   27  to the right of    2
143   27   to the left of    4
144   27  to the right of    7
145   27   to the left of   11
146   27               in   26

[147 rows x 3 columns]