Are these animals of different types?
No, all the animals are cows.
    src        edge_attr  dst
0     0  to the right of    6
1     2           behind    7
2     6   to the left of    0
3     6   to the left of   13
4     7  to the right of   14
5     7  to the right of    9
6     7      in front of    2
7     7  to the right of    8
8     8  to the right of    9
9     8   to the left of    7
10    9  leaning against   14
11    9   to the left of    8
12    9   to the left of    7
13   13  to the right of    6
14   14   to the left of    7