What color are the leaves that the tree is full of?
The leaves are green.
     src        edge_attr  dst
0      0  to the right of   13
1      0  to the right of    9
2      0  to the right of   25
3      0  to the right of   17
4      0  to the right of    4
..   ...              ...  ...
249   36   to the left of   11
250   36   to the left of   12
251   36   to the left of    9
252   36  to the right of   34
253   36   to the left of   35

[254 rows x 3 columns]