Does the clean road have green color?
Yes, the road is green.
    src        edge_attr  dst
0     0          wearing    1
1     0               on   16
2     0  to the right of    5
3     0  to the right of    3
4     0  to the right of   10
5     0  to the right of    7
6     1  to the right of   10
7     1   to the left of   11
8     1  to the right of    5
9     1   to the left of   17
10    3   to the left of    9
11    3   to the left of    0
12    4   to the left of    8
13    4  to the right of    7
14    4  to the right of   10
15    4   to the left of   11
16    4               on   14
17    4   to the left of   17
18    4  to the right of    5
19    4   to the left of    9
20    5   to the left of   16
21    5   to the left of    0
22    5   to the left of    1
23    5   to the left of    4
24    6   to the left of    8
25    6   to the left of   11
26    6  to the right of   10
27    7   to the left of    0
28    7   to the left of    4
29    7   on the back of   16
30    8  to the right of    4
31    8  to the right of    6
32    8  to the right of   10
33    9  to the right of    4
34    9  to the right of    3
35   10   to the left of    6
36   10   to the left of    4
37   10   to the left of    0
38   10   to the left of    1
39   10   to the left of   11
40   10   to the left of    8
41   10               on    5
42   11  to the right of    6
43   11  to the right of   10
44   11  to the right of    1
45   11               on    8
46   11  to the right of    4
47   16  to the right of    5
48   17  to the right of    4
49   17  to the right of    1