How long is the hair?
The hair is long.
    src        edge_attr  dst
0     0   to the left of    1
1     1  to the right of    0
2     2   to the left of    3
3     3  to the right of    2
4     5  to the right of    8
5     6   to the left of   10
6     6   to the left of    7
7     7  to the right of   10
8     7  to the right of    6
9     8   to the left of    5
10    9               on    0
11   10               on    9
12   10   to the left of    7
13   10  to the right of    6