What vehicle in the photo is white?
The vehicle is a trailer.
    src        edge_attr  dst
0     0               on   11
1     0  to the right of    4
2     0  to the right of    1
3     1  to the right of    4
4     1   to the left of   11
5     1   to the left of    0
6     2   to the left of   12
7     3   to the left of    7
8     3  to the right of    6
9     4   to the left of    1
10    4   to the left of    0
11    4   to the left of   11
12    4  to the right of    9
13    6   to the left of    3
14    6   to the left of    7
15    6   to the left of   12
16    7   to the left of   11
17    7  to the right of    6
18    7  to the right of    3
19    8   to the left of   11
20    9   to the left of    4
21   11  to the right of   12
22   11  to the right of    8
23   11  to the right of    7
24   11  to the right of    1
25   11  to the right of    4
26   12   to the left of   11
27   12  to the right of    6
28   12  to the right of    2
29   12               in    8