Is there either a sheep or a horse in this scene?
Yes, there is a sheep.
    src        edge_attr  dst
0     3  to the right of   12
1     5  to the right of   14
2     6  to the right of   13
3     8  to the right of   14
4     9   to the left of   10
5    10  to the right of    9
6    10   to the left of   16
7    11   to the left of   13
8    11   to the left of   16
9    12   to the left of    3
10   13   to the left of    6
11   13  to the right of   11
12   14   to the left of    5
13   14   to the left of    8
14   16  to the right of   10
15   16  to the right of   11