What kind of vehicle is not white?
The vehicle is a taxi.
    src        edge_attr  dst
0     0  to the right of   12
1     1               on   10
2     1   to the left of    7
3     2  to the right of    5
4     2  to the right of   13
5     3   to the left of    4
6     3   to the left of   11
7     3            above   10
8     4               on   10
9     4  to the right of    3
10    5   to the left of   11
11    5   to the left of    2
12    6  to the right of    8
13    7  to the right of    1
14    7               on   10
15    8   to the left of   12
16    8   to the left of    6
17    8               on   10
18   11  to the right of    3
19   11  to the right of    5
20   12  to the right of    8
21   12   to the left of    0
22   13   to the left of    2