Which kind of vehicle is orange?
The vehicle is an ambulance.
    src        edge_attr  dst
0     0               on    9
1     0  to the right of    8
2     0  to the right of    7
3     0            above    9
4     0        on top of    9
5     3  to the right of    8
6     3  to the right of    7
7     4   to the left of    5
8     4               in   12
9     5  to the right of    4
10    7               on    8
11    7   to the left of    0
12    7   to the left of    3
13    8   to the left of   10
14    8   to the left of    3
15    8   to the left of    0
16    8   to the left of   11
17   10  to the right of    8
18   10               of    0
19   11  to the right of    8
20   12             near   13
21   12            above   13
22   13             near   12