The mane has what length?
The mane is short.
    src        edge_attr  dst
0     0   to the left of   15
1     0               of   13
2     0   to the left of    4
3     0   to the left of    3
4     0   to the left of    6
..  ...              ...  ...
78   15  to the right of    0
79   15   to the left of    6
80   15  to the right of   11
81   15  to the right of   14
82   15   to the left of    3

[83 rows x 3 columns]