What is on the trees that are shown in the picture?
The snow is on the trees.
    src        edge_attr  dst
0     0  to the right of    8
1     0   to the left of    6
2     0               on    4
3     1               on   12
4     1   to the left of   13
5     2               on   12
6     2   to the left of    6
7     2   to the left of   10
8     3   to the left of   10
9     3   to the left of    6
10    3               on   12
11    3  to the right of   13
12    5               on   12
13    6               on    4
14    6  to the right of    2
15    6  to the right of    0
16    6  to the right of    9
17    6  to the right of    3
18    6  to the right of   13
19    7               on   12
20    8   to the left of    0
21    8               on    4
22    8   to the left of    9
23    9   to the left of    6
24    9  to the right of    8
25    9   to the left of   10
26    9   to the left of   11
27    9  to the right of   13
28    9               on    4
29   10  to the right of    3
30   10  to the right of    9
31   10  to the right of   13
32   10               on   14
33   10  to the right of    2
34   11  to the right of   13
35   11  to the right of    9
36   13   to the left of   11
37   13   to the left of   10
38   13   to the left of    9
39   13   to the left of    6
40   13  to the right of    1
41   13   to the left of    3
42   13               on   14