What color does the vehicle to the left of the man have?
The car has green color.
    src        edge_attr  dst
0     0   to the left of   17
1     1  to the right of    4
2     1  to the right of    6
3     3   to the left of    8
4     3   to the left of    9
5     4   to the left of    1
6     5   to the left of   17
7     6   to the left of    1
8     8  to the right of    3
9     8  to the right of   17
10    9           inside   10
11    9          wearing    8
12    9  to the right of    3
13   13               on   11
14   17  to the right of    0
15   17   to the left of    8
16   17  to the right of    5