What vehicle is yellow?
The vehicle is an ambulance.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of    1
2     0  to the right of    9
3     1          next to    8
4     1             near    8
5     1   to the left of    0
6     2          wearing    7
7     2          helping   11
8     2          exiting    9
9     2   to the left of    8
10    2  to the right of   13
11    2          wearing   12
12    4          next to   10
13    4             near   10
14    5   to the left of   14
15    6   to the left of   11
16    6   to the left of    0
17    7  to the right of   13
18    8               on    4
19    8  to the right of   12
20    8  to the right of    2
21    8             near    1
22    9   to the left of   11
23    9               on    4
24    9   to the left of    0
25   10             near    4
26   11  to the right of    6
27   11          wearing    3
28   11           facing    2
29   11          wearing    0
30   11  to the right of    9
31   12   to the left of    8
32   13   to the left of    2
33   13   to the left of    7
34   14  to the right of    5