Which color are the socks the boy wears?
The socks are green.
    src        edge_attr  dst
0     1  to the right of    6
1     1  to the right of   14
2     2   to the left of   15
3     2   to the left of   18
4     2   to the left of    7
5     4   to the left of   21
6     4   to the left of   11
7     5   to the left of   12
8     5   to the left of   19
9     6   to the left of    1
10    7  to the right of    2
11    7  to the right of   11
12    7  to the right of    8
13    8   to the left of    7
14    8   to the left of   15
15   11   to the left of    7
16   11  to the right of    4
17   11   to the left of   15
18   11  to the right of   20
19   12   to the left of   13
20   12  to the right of    5
21   13  to the right of   14
22   13  to the right of   12
23   14          wearing    5
24   14   to the left of   13
25   14          wearing   21
26   14   to the left of    1
27   15  to the right of    2
28   15      standing on   22
29   15  to the right of   11
30   15  to the right of    8
31   18  to the right of   21
32   18  to the right of    2
33   19  to the right of    5
34   20   to the left of   11
35   20   to the left of   21
36   21   to the left of   18
37   21  to the right of   20
38   21  to the right of    4
39   22               of    9