Is the vehicle to the left of the truck white or green?
The van is white.
    src        edge_attr  dst
0     0   to the left of   17
1     0  to the right of    2
2     0   to the left of    3
3     2   to the left of    0
4     2   to the left of    3
5     2   to the left of   17
6     3  to the right of    0
7     3  to the right of    2
8     4   to the left of   20
9     4   to the left of   12
10    5   to the left of   14
11    5   to the left of    6
12    6   to the left of   22
13    6   to the left of   25
14    6  to the right of    9
15    6  to the right of    5
16    6   to the left of   13
17    6  to the right of   10
18    6  to the right of   15
19    9   to the left of    6
20   10   to the left of    6
21   11   to the left of   20
22   11   to the left of   12
23   12  to the right of    4
24   12  to the right of   11
25   13  to the right of    6
26   13  to the right of   24
27   14  to the right of    5
28   14  to the right of   15
29   14   to the left of   24
30   14   to the left of   18
31   15   to the left of   14
32   15   to the left of    6
33   17  to the right of    0
34   17  to the right of    2
35   18  to the right of   14
36   18   to the left of   22
37   18   to the left of   24
38   19               of   23
39   20  to the right of   11
40   20  to the right of    4
41   21   to the left of   24
42   21   to the left of   22
43   22  to the right of   24
44   22  to the right of   18
45   22  to the right of   21
46   22  to the right of    6
47   24   to the left of   25
48   24   to the left of   22
49   24  to the right of   14
50   24  to the right of   18
51   24  to the right of   21
52   24   to the left of   13
53   25  to the right of    6
54   25  to the right of   24