Is the ground snowy or rocky?
The ground is rocky.
    src        edge_attr  dst
0     0   to the left of   10
1     0   to the left of    3
2     1             near    2
3     2             near    1
4     2   to the left of    7
5     2   to the left of    3
6     2   to the left of    4
7     2   to the left of   10
8     3  to the right of    0
9     3  to the right of    2
10    3         drinking    1
11    4   to the left of   10
12    4  to the right of    2
13    6  to the right of   12
14    7  to the right of    2
15    7        on top of   10
16   10  to the right of    0
17   10  to the right of    2
18   10  to the right of    4
19   12   to the left of    6