Are there fences or horses?
Yes, there is a horse.
    src        edge_attr  dst
0     0   to the left of    5
1     1   to the left of   11
2     3  to the right of    4
3     3  to the right of    8
4     4               on    8
5     4      attached to    8
6     4   to the left of    3
7     4   to the left of    7
8     5  to the right of    0
9     5   to the left of    7
10    5   to the left of    6
11    6  to the right of    5
12    6   to the left of    9
13    7  to the right of    4
14    7   to the left of    9
15    7  to the right of    5
16    7  to the right of    8
17    8   to the left of    3
18    8      hanging off    2
19    8   to the left of    7
20    9  to the right of    7
21    9  to the right of    6
22   11  to the right of    1