What is the color of the helmet?
The helmet is black.
    src        edge_attr  dst
0     0  to the right of    7
1     0   to the left of    6
2     1  to the right of    7
3     1   to the left of    5
4     2   to the left of    7
5     3   to the left of    6
6     4  to the right of    7
7     5  to the right of    1
8     5  to the right of    7
9     6  to the right of    3
10    6  to the right of    0
11    7   to the left of    0
12    7  to the right of    2
13    7   to the left of    1
14    7   to the left of    5
15    7   to the left of    4