21
bird 0 1 4 5 13 14 18 21 
animal 0 21 
carnivore 2 3 4 13 14 18 19 21 
pet 3 4 7 9 13 18 
bird-of-prey 4 5 19 21 
felide 5 6 8 9 11 13 16 18 
canide 6 8 9 11 14 16 
dog 7 8 14 16 
cat 8 9 16 18 
wolf 9 10 
jackal 10 11 
lion 11 12 
tiger 12 13 
canary 13 14 
labrador 14 15 
poodle 15 16 
tabby 16 17 
siamese 17 18 
ostrich 18 19 
falcon 19 20 
eagle 20 21 
0 1 
2 1 
3 1 
4 2 0 
5 2 
6 2 
7 6 3 
8 5 3 
9 6 
10 6 
11 5 
12 5 
13 0 3 
14 7 
15 7 
16 8 
17 8 
18 0 
19 4 
20 4