How does his cap look like, blue or white?
The cap is white.
    src        edge_attr  dst
0     0          wearing    1
1     0          wearing   10
2     0          holding    4
3     0          wearing    3
4     0          wearing    6
5     0          wearing    5
6     0          wearing    2
7     1   to the left of    4
8     1  to the right of    7
9     4  to the right of    7
10    4  to the right of    5
11    4  to the right of    8
12    4  to the right of    1
13    5   to the left of    4
14    7   to the left of    4
15    7   to the left of    1
16    8   to the left of    4