Are the trees green and tall?
Yes, the trees are green and tall.
    src        edge_attr  dst
0     0  to the right of    6
1     1  to the right of    4
2     1   to the left of    2
3     1  to the right of    8
4     2  to the right of    8
5     2  to the right of    1
6     2  to the right of    5
7     2  to the right of    4
8     4   to the left of    1
9     4   to the left of    2
10    5   to the left of    2
11    6   to the left of    0
12    8   to the left of    2
13    8   to the left of    1