Are the leaves wet or dry?
The leaves are dry.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of    2
2     0   to the left of   11
3     0   to the left of    8
4     2   to the left of    7
5     2               of   11
6     2  to the right of    0
7     4           beside   11
8     5  to the right of   11
9     5               on    4
10    7  to the right of    2
11    7  to the right of    0
12    7  to the right of    8
13    8               of   11
14    8   to the left of    7
15    8  to the right of    0
16    9   to the left of   11
17   10  to the right of   11
18   11  to the right of    9
19   11   to the left of   10
20   11  to the right of    0
21   11   to the left of    5