Dolly: Are you a girl?

John: No, I'm not. I'm a boy.

Dolly: Are you a tall boy?

John: Yes, I am.

Dolly: Are you fat?

John: No, I am not.

Dolly: Are you nine?

John: No, I am ten. Today is my birthday.

Dolly: Are you John?

John: Yes, I am.