Is the white snow smooth or rough?
The snow is rough.
    src        edge_attr  dst
0     1   to the left of    3
1     2   to the left of   14
2     3  to the right of    7
3     3  to the right of    1
4     3           behind   13
5     3  to the right of    9
6     6  to the right of    9
7     6  to the right of    7
8     7   to the left of    3
9     7   to the left of    6
10    9   to the left of    3
11    9   to the left of    6
12   13          wearing    5
13   13          wearing    9
14   13          wearing   10
15   13      in front of    3
16   13          wearing    1
17   13          wearing    8
18   13          wearing    4
19   13          holding    3
20   13               on   10
21   13               on    9
22   14  to the right of    2
23   14  to the right of   15
24   15   to the left of   14