What is the color of the vehicle on the street?
The car is white.
    src        edge_attr  dst
0     0  to the right of   12
1     1             near    7
2     3   to the left of   16
3     3   to the left of    4
4     3               of   10
5     4  to the right of    3
6     4   to the left of   16
7     4               of   10
8     6               of    8
9     7             near    1
10    8               on    2
11   10            above   15
12   11               of   10
13   12               of   10
14   12   to the left of    0
15   12   to the left of   16
16   16  to the right of    3
17   16  to the right of   17
18   16  to the right of   12
19   16  to the right of    4
20   17   to the left of   16