My name is Tom Black. This is my cousin, Jack Smith. That is his dog. That computer is my cousin's. The orange notebook is his, too. I have a good friend. Her name is Mary Smith. Is this her watch? No, it isn't. It is black, It is mine. Hers is white. Is this Mary's watch?
Yes, it is. Yes, it isn't. No, it is. No, it isn't.