How tall is the red hat?
The hat is short.
    src        edge_attr  dst
0     0   to the left of    5
1     0  to the right of    2
2     0  to the right of   20
3     0   to the left of    9
4     1   to the left of    6
..  ...              ...  ...
63   20   to the left of    0
64   21  to the right of   20
65   22               in   10
66   22  to the right of   20
67   22  to the right of    6

[68 rows x 3 columns]