What vehicle is to the right of the person?
The vehicle is a van.
    src        edge_attr  dst
0     0  to the right of    1
1     0  to the right of    8
2     1   to the left of    7
3     1  to the right of    4
4     1   to the left of    2
5     1   to the left of    0
6     2  to the right of    8
7     2  to the right of   15
8     2  to the right of    1
9     3   to the left of    4
10    4   to the left of    8
11    4   to the left of    1
12    4   to the left of   15
13    4  to the right of    3
14    5   to the left of   13
15    5   to the left of   12
16    6  to the right of   14
17    7  to the right of    1
18    7  to the right of   15
19    7  to the right of    8
20    8   to the left of    0
21    8   to the left of    2
22    8  to the right of   15
23    8  to the right of    4
24    8   to the left of    7
25    9   to the left of   12
26    9   to the left of   13
27   10  to the right of   11
28   10  to the right of   14
29   11   to the left of   10
30   11  to the right of   14
31   12  to the right of    5
32   12  to the right of   13
33   12  to the right of    9
34   13  to the right of    5
35   13  to the right of    9
36   13   to the left of   12
37   14   to the left of   11
38   14   to the left of    6
39   14   to the left of   10
40   14      standing in    3
41   15   to the left of    2
42   15   to the left of    7
43   15               on    1
44   15   to the left of    8
45   15  to the right of    4