Are they teachers?
Yes, they are.
Are they waiters?
Yes, they are
What is it?
It is a towal
Are they vets?
Yes, they are
What is it?
It is an umbrella
Are they vets?
No, they aren't
Are they builders?
Yes, they are.
Are they vets?
No,they aren't
What is it?
It is a turtle
Are they builders?
No,they aren't