Are there any fences to the right of the sheep?
No, there is an animal to the right of the sheep.
    src        edge_attr  dst
0     0             near   10
1     0  to the right of    9
2     0  to the right of    6
3     0  to the right of    1
4     0  to the right of    4
5     0  to the right of    5
6     1   to the left of    0
7     1  to the right of   11
8     1           behind   12
9     2  to the right of    3
10    3   to the left of    2
11    4   to the left of    9
12    4   to the left of    0
13    5  to the right of   11
14    5   to the left of    0
15    6   to the left of    0
16    8           behind   10
17    8  to the right of   13
18    9   to the left of    0
19    9  to the right of    4
20   10             near    0
21   10      in front of    8
22   10  to the right of   13
23   11   to the left of    5
24   11   to the left of    1
25   12      in front of    1
26   13   to the left of    8
27   13   to the left of   10