The cap he is wearing has what color?
The cap is black.
    src        edge_attr  dst
0     0  to the right of    1
1     0  to the right of   13
2     0  to the right of    2
3     0   to the left of   14
4     0   to the left of   17
5     0   to the left of    6
6     0  to the right of    5
7     0   to the left of   10
8     0   to the left of    7
9     0   to the left of   15
10    0   to the left of    9
11    1   to the left of    0
12    1   to the left of    3
13    2   to the left of    0
14    3  to the right of    1
15    4   to the left of    6
16    4   to the left of   10
17    5       growing on    8
18    5   to the left of    0
19    5   to the left of    9
20    6       growing on    8
21    6  to the right of    4
22    6  to the right of    0
23    6  to the right of   14
24    6  to the right of    9
25    7  to the right of    0
26    7       growing on    8
27    9       growing on    8
28    9   to the left of    6
29    9  to the right of    5
30    9  to the right of    0
31    9   to the left of   14
32    9   to the left of   10
33   10  to the right of    0
34   10  to the right of    9
35   10  to the right of   14
36   10  to the right of    4
37   13   to the left of    0
38   14   to the left of    6
39   14  to the right of    0
40   14   to the left of   10
41   14  to the right of    9
42   14       growing on    8
43   15  to the right of    0
44   17  to the right of    0
45   20          wearing    2
46   20          wearing   15
47   20          wearing    3
48   20          holding    4
49   20          holding    0
50   20          wearing    1
51   20          wearing    0
52   20          wearing    4
53   20          wearing   18