Are the animals sheep?
No, there are both sheep and cows.
    src        edge_attr  dst
0     0  to the right of   15
1     2               of   15
2     2   to the left of   11
3     2   to the left of    5
4     3  to the right of   17
5     3  to the right of    6
6     4  to the right of   15
7     4  to the right of    9
8     4             near    9
9     5            under   15
10    5            below   15
11    5   to the left of    7
12    5  to the right of    2
13    5               in    1
14    5   to the left of   10
15    6   to the left of    3
16    6  to the right of   17
17    7  to the right of   15
18    7  to the right of   11
19    7  to the right of    5
20    8  to the right of   15
21    9  to the right of   15
22    9   to the left of    4
23    9          next to    4
24    9             near    4
25   10               in    1
26   10  to the right of   11
27   10  to the right of    5
28   11   to the left of   10
29   11   to the left of    7
30   11  to the right of    2
31   11               in    1
32   14  to the right of   15
33   15   to the left of    7
34   15   to the left of    8
35   15   to the left of   14
36   15   to the left of    0
37   15   to the left of    4
38   15   to the left of    9
39   17   to the left of    6
40   17   to the left of    3