What is the snow on?
The snow is on the trees.
    src        edge_attr  dst
0     0   to the left of    7
1     1      filled with    6
2     2   to the left of    7
3     2  to the right of   13
4     2  to the right of    8
5     3          wearing   13
6     3          wearing   11
7     3   to the left of    9
8     3   to the left of    4
9     4  to the right of    3
10    4   to the left of    7
11    4  to the right of   11
12    5       covered in    6
13    6   to the left of    7
14    6               on    7
15    7               in    6
16    7  to the right of    6
17    7  to the right of    4
18    7  to the right of    2
19    7  to the right of    0
20    7  to the right of   12
21    7  to the right of    9
22    8   to the left of    2
23    9  to the right of    3
24    9   to the left of    7
25   10       covered in    6
26   11   to the left of    4
27   12   to the left of    7
28   13   to the left of    2