A: It's nice to see you again. Have you changed jobs? 

B: No, I've been visiting relatives. 

A: That's nice. Where? 

B: I went to visit an uncle of mine in San Francisco. 

A: What's your impression of San Francisco?

B: Great. But I can’t find my hat and shoes in the airport.

A: What color are your shoes?

B: They are brown.

A: Are these your shoes?

B: No. They aren’t. Mine aren’t new.