What is covered with the snow?
The mountains are covered with snow.
    src        edge_attr  dst
0     0               in    3
1     0  to the right of    9
2     2               in    3
3     4               in    1
4     4             near   13
5     5  to the right of   11
6     5             near   11
7     5             near   13
8     5               on    4
9     6   on the side of   13
10    7           beside    4
11    7     covered with   14
12    8   to the left of   12
13    8               on    4
14    8               in    1
15    9   to the left of    0
16    9               in    3
17   10               on    4
18   10               in    1
19   10  to the right of   12
20   10             near   13
21   10               in    4
22   11   to the left of    5
23   11             near    5
24   12               in    1
25   12   to the left of   10
26   12  to the right of    8
27   12               on    4
28   13             near    4
29   13             near    5
30   13             near   10
31   14        on top of    7
32   14        on top of   13