answer: #Person1# asks #Person2# the way to the post office because #Person1# wants to find the nearby NO.13 school to pick up #Person1#'s cousin.
documents: #Person1#: Excuse me, could you tell me where the post office is?
  #Person2#: Go straight on, turn right at the first traffic lights. The post office is about fifty meters away.
  #Person1#: I see. And is the No. 13 Middle School far away from the post office?
  #Person2#: Not far. It's about 150 meters. Where do you want to go?
  #Person1#: Oh, I only want to pick up my cousin from school. I am told that the school is next to the post office, and that is why I want to know how to get to the post office first.