Does the mane look black?
Yes, the mane is black.
    src         edge_attr  dst
0     1   to the right of    8
1     1    to the left of    5
2     2  standing next to    3
3     2    to the left of    8
4     2    to the left of    9
5     5   to the right of    8
6     5   to the right of    1
7     6    to the left of    9
8     7   to the right of    8
9     8         on top of   10
10    8    to the left of    5
11    8    to the left of    1
12    8    to the left of    7
13    8   to the right of    2
14    8    on the edge of   10
15    9          lying on   10
16    9   to the right of    6
17    9   to the right of    2