What are these?
They are cats.
What's this?
It's a bird.
What's this?
It's a cat.
Let's count the birds.
1 bird, 2 birds, 3 birds, 4 birds, 5 birds.
What's this?
It's a dog.
Let's count the dogs.
1 dog, 2 dogs, 3 dogs.
What are these?
They are birds.
Let's count the cats.
1 cat, 2 cats.
What are these?
They are dogs.