What color is the crosswalk?
The crosswalk is yellow.
    src        edge_attr  dst
0     0  to the right of   13
1     0  to the right of   10
2     1   to the left of    6
3     2   to the left of    5
4     2   to the left of    4
5     4  to the right of    2
6     4  to the right of   12
7     4  to the right of   10
8     5  to the right of   13
9     5  to the right of   12
10    5  to the right of   10
11    5  to the right of    2
12    6  to the right of    1
13    8       walking on    9
14    8   to the left of   12
15   10   to the left of   11
16   10   to the left of    0
17   10   to the left of    4
18   10   to the left of    5
19   11  to the right of   10
20   11  to the right of   13
21   12  to the right of    8
22   12   to the left of    4
23   12   to the left of    5
24   13   to the left of   11
25   13   to the left of    0
26   13   to the left of    5