Which color is the mane?
The mane is black.
    src        edge_attr  dst
0     0   to the left of    8
1     2   to the left of    3
2     2   to the left of   12
3     3  to the right of    2
4     3   to the left of   12
5     3  to the right of   15
6     4   to the left of   11
7     5  to the right of   18
8     5  to the right of   14
9     5  to the right of   13
10    5  to the right of    7
11    5  to the right of    6
12    5  to the right of   19
13    6   to the left of    5
14    6  to the right of   18
15    7   to the left of   14
16    7   to the left of    5
17    8   to the left of   11
18    8  to the right of    0
19    9   to the left of   11
20    9  to the right of   10
21   10   to the left of    9
22   11  to the right of    4
23   11  to the right of    9
24   11  to the right of    8
25   12  to the right of   15
26   12  to the right of    3
27   12  to the right of    2
28   13   to the left of    5
29   14  to the right of    7
30   14   to the left of    5
31   15   to the left of   12
32   15   to the left of    3
33   16       growing by   17
34   18   to the left of    6
35   18   to the left of    5
36   19   to the left of    5
37   19  to the right of   20
38   20   to the left of   19