Is the hair red or black?
The hair is black.
    src        edge_attr  dst
0     0   to the left of    1
1     0   to the left of    4
2     1  to the right of    4
3     1  to the right of    7
4     1  to the right of    6
5     1  to the right of    0
6     1   to the left of   10
7     1  to the right of    3
8     3   to the left of    1
9     4   to the left of    1
10    4  to the right of    0
11    6   to the left of    1
12    7   to the left of    1
13   10  to the right of    1