Where is the horse standing?
The horse is standing in the field.
    src        edge_attr  dst
0     1               of    7
1     2  to the right of    9
2     2  to the right of   14
3     3           behind    7
4     5               in    8
5     6               on    8
6     6  to the right of    7
7     6               in    8
8     7      standing on    5
9     7      standing in    8
10    7   to the left of    6
11    7               in    8
12    7      in front of    3
13    8               of    5
14    9   to the left of    2
15   10  to the right of   13
16   13   to the left of   10
17   14   to the left of    2