Are the leaves green?
No, the leaves are brown.
    src        edge_attr  dst
0     1  to the right of   10
1     3           behind    9
2     3               in    2
3     3   to the left of    4
4     3  to the right of   10
5     4  to the right of    3
6     4  to the right of    9
7     4  to the right of    6
8     6  to the right of   10
9     6   to the left of    4
10    8               on    7
11    9  to the right of   10
12    9               in    2
13    9      in front of    3
14    9  to the right of   11
15    9   to the left of    4
16   10   to the left of    1
17   10   to the left of    3
18   10   to the left of    9
19   10   to the left of    6
20   11   to the left of    9
21   11               of   10
22   11               of    4