What vehicle is to the left of the man?
The vehicle is a van.
    src        edge_attr  dst
0     1   to the left of    7
1     2   to the left of    3
2     2   to the left of    5
3     2   to the left of    6
4     2               on    0
5     3               in    6
6     3  to the right of    2
7     3   to the left of    4
8     3  to the right of    8
9     4  to the right of    5
10    4  to the right of    6
11    4  to the right of    3
12    5  to the right of    2
13    5   to the left of    4
14    5  to the right of    8
15    6  to the right of    8
16    6   to the left of    4
17    6  to the right of    2
18    7  to the right of    1
19    8               on    0
20    8   to the left of    3
21    8   to the left of    6
22    8   to the left of    5