Do the leaves look dense?
No, the leaves are sparse.
     src        edge_attr  dst
0      0  to the right of   36
1      0  to the right of   47
2      1   to the left of   18
3      1   to the left of   14
4      1   to the left of    6
..   ...              ...  ...
475   48  to the right of   17
476   48   to the left of   32
477   48  to the right of   38
478   48  to the right of   36
479   49   to the left of    9

[480 rows x 3 columns]