What animal is in front of the hill?
The cow is in front of the hill.
    src        edge_attr  dst
0     1               on    0
1     3   to the left of   14
2     3   to the left of   12
3     4           behind    9
4     5       grazing on    8
5     6           behind    9
6     9             near   13
7     9      in front of    6
8     9      in front of    4
9    10   to the left of   14
10   10   to the left of   13
11   12               of   10
12   12  to the right of    3
13   12   to the left of   14
14   13             near    9
15   13  to the right of   10
16   13  to the right of   14
17   14   to the left of   13
18   14  to the right of   10
19   14  to the right of    3
20   14               of    9
21   14  to the right of   12