Do the leaves appear to be green or red?
The leaves are green.
    src        edge_attr  dst
0     0   to the left of   18
1     0   to the left of   17
2     1   to the left of   11
3     3  to the right of   17
4     4   to the left of    7
5     5   to the left of   14
6     5   to the left of   11
7     5   to the left of   12
8     5  to the right of    8
9     6  to the right of   17
10    6  to the right of   15
11    7  to the right of    4
12    8   to the left of   10
13    8   to the left of    5
14    9   to the left of   12
15    9   to the left of   14
16    9   to the left of   11
17   10   to the left of   12
18   10  to the right of    8
19   11  to the right of    9
20   11  to the right of    1
21   11  to the right of    5
22   12  to the right of    9
23   12  to the right of    5
24   12  to the right of   10
25   14  to the right of    5
26   14  to the right of    9
27   15   to the left of   18
28   15   to the left of    6
29   17  to the right of    0
30   17   to the left of    6
31   17   to the left of    3
32   18  to the right of    0
33   18  to the right of   15