Are the animals of different types?
No, all the animals are birds.
    src        edge_attr  dst
0     0  to the right of   19
1     0        flying in   21
2     1        flying in   21
3     1  to the right of    8
4     1   to the left of   19
5     2  to the right of   16
6     2  to the right of    5
7     3            above   21
8     3   to the left of   13
9     3   to the left of   11
10    5   to the left of    2
11    7   to the left of   20
12    8   to the left of    1
13   11  to the right of   13
14   11  to the right of    3
15   11   to the left of   17
16   13  to the right of    3
17   13   to the left of   11
18   14             near   16
19   14            below   18
20   15             near   18
21   15          next to   18
22   16   to the left of    2
23   16   to the left of   22
24   16             near   14
25   17  to the right of   11
26   18           around   14
27   18  to the right of   22
28   18             near   15
29   19            below   21
30   19   to the left of    0
31   19  to the right of    1
32   19        flying in   21
33   20  to the right of    7
34   22  to the right of   16
35   22   to the left of   18