What is the vehicle that is to the right of the gray car?
The vehicle is a van.
     src        edge_attr  dst
0      1   to the left of   11
1      2           behind    9
2      3       printed on    4
3      5       walking in    9
4      5          wearing    1
..   ...              ...  ...
102   23  to the right of   22
103   23   to the left of   15
104   23   to the left of   18
105   23  to the right of    5
106   23  to the right of    7

[107 rows x 3 columns]