What color are the leaves?
The leaves are green.
     src        edge_attr  dst
0      1  to the right of   21
1      1   to the left of   17
2      1  to the right of   23
3      1  to the right of    5
4      2   to the left of    6
..   ...              ...  ...
150   24   to the left of    9
151   24   to the left of   15
152   24   to the left of    3
153   24   to the left of   21
154   24   to the left of   23

[155 rows x 3 columns]