What color is the traffic light?
The traffic light is green.
    src        edge_attr  dst
0     0   to the left of   17
1     0   to the left of    4
2     1  to the right of    2
3     2   to the left of   12
4     2   to the left of   13
5     2   to the left of    9
6     2   to the left of    1
7     4  to the right of    0
8     6   to the left of   12
9     6   to the left of   14
10    9  to the right of   16
11    9   to the left of   13
12    9  to the right of    2
13    9  to the right of   11
14   11   to the left of   13
15   11  to the right of   16
16   11   to the left of   12
17   11   to the left of    9
18   12  to the right of    2
19   12  to the right of    6
20   12  to the right of   15
21   12  to the right of   11
22   12  to the right of   16
23   13  to the right of    9
24   13  to the right of   11
25   13          holding    1
26   13  to the right of    2
27   14  to the right of    6
28   15   to the left of   12
29   16   to the left of    9
30   16   to the left of   11
31   16   to the left of   12
32   17          wearing    3
33   17  to the right of    0
34   17          wearing    4