What is the name of the gray vehicle?
The vehicle is a van.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of    4
2     0  to the right of   16
3     0           beside    6
4     1   to the left of   13
..  ...              ...  ...
81   18   to the left of   10
82   18  to the right of    9
83   18   to the left of   12
84   18  to the right of   16
85   18  to the right of   11

[86 rows x 3 columns]