Are both the tree and the fence the same color?
No, the tree is green and the fence is white.
   src        edge_attr  dst
0    0   to the left of    3
1    0   to the left of    2
2    1   to the left of    3
3    2   to the left of    3
4    2  to the right of    0
5    3  to the right of    1
6    3  to the right of    0
7    3  to the right of    2