Who is this?
builder
Who is this?
waiter
Are they waiters?
No, they aren't.
Are they teachers?
No, they aren't.
Are they vets?
Yes, they are.
Who is this?
pupil
Who is this?
vet
Who are they?
Waiters
Who are they?
vets
Who is this?
teacher
Are they builders?
Yes, they are.
Are they pupils?
No, they aren't.
Are they pupils?
Yes, they are.
Who are they?
builders