How tall is the mane?
The mane is tall.
    src        edge_attr  dst
0     1   to the left of   11
1     1   to the left of   13
2     1   to the left of    9
3     1   to the left of   12
4     1   to the left of   16
..  ...              ...  ...
86   18  to the right of   13
87   18   to the left of    2
88   18  to the right of    1
89   19  to the right of    1
90   19   to the left of    4

[91 rows x 3 columns]