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