Are they frogs?
Yes, they are.
What are they?
They're catterpillars.
Are they caterpillars?
Yes, they are.
What are they?
They're butterflies.
Are they butterflies?
No, they aren't.
What are they?
They're ladybugs.
What are they?
They're plants.
What are they?
They're frogs.
What are they?
They're trees.