Which color does the helmet the man is wearing have?
The helmet has black color.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of    6
2     0   to the left of   10
3     2   to the left of   10
4     2   to the left of    6
5     3   to the left of    6
6     3   to the left of   10
7     3   to the left of    7
8     5  to the right of   11
9     6          wearing    9
10    6  to the right of    2
11    6  to the right of    0
12    6  to the right of    3
13    6  to the right of   11
14    6  to the right of    7
15    7  to the right of    3
16    7  to the right of    0
17    7  to the right of   11
18    7   to the left of    6
19    9  to the right of   10
20    9  to the right of   11
21   10          wearing    2
22   10               on    8
23   10   to the left of    9
24   10  to the right of   11
25   10  to the right of    0
26   10  to the right of    2
27   10  to the right of    3
28   10          wearing    7
29   10          wearing    5
30   11   to the left of    6
31   11   to the left of    5
32   11   to the left of   10
33   11   to the left of    9
34   11   to the left of    7
35   11          wearing    2