Are there hats that are not black?
Yes, there is a blue hat.
    src        edge_attr  dst
0     0  to the right of    5
1     0   to the left of    4
2     1   to the left of    4
3     1   to the left of    3
4     2          wearing    0
5     2          wearing    1
6     2          wearing    5
7     2   to the left of    3
8     2   to the left of    4
9     3  to the right of    2
10    3  to the right of    1
11    4  to the right of    0
12    4          wearing    3
13    4  to the right of    1
14    4  to the right of    2
15    4  to the right of    5
16    5   to the left of    0
17    5   to the left of    4