How long is the skinny tail?
The tail is short.
    src        edge_attr  dst
0     0   to the left of   15
1     0   to the left of   19
2     0   to the left of   18
3     0   to the left of   12
4     0   to the left of    3
..  ...              ...  ...
89   23   to the left of    1
90   24  to the right of   10
91   24  to the right of   11
92   24  to the right of   21
93   24  to the right of   20

[94 rows x 3 columns]