answer: #Person2# suggests taking the subway to Wangfujing because it's faster and more convenient, then #Person2# tells #Person1# how to pay the fare and where to get a subway map
documents: #Person1#: Let's go to Wangfujing by bus.
  #Person2#: Better take the subway. It's faster, and more convenient.
  #Person1#: OK, it will be a new experience for me.
  #Person2#: We have a rather comprehensive subway system here. You can get almost anywhere rather quickly on a subway, especially at this time of day when the traffic is heavy.
  #Person1#: Where do we pay the fare?
  #Person2#: Just give the man standing there 3 yuan and he'll give you a token. Then, you slip it into the slot at the turnstile and push the turnstile to get in.
  #Person1#: Let me pay for it. Where can I get a subway map?
  #Person2#: Ask the worker who sells tokens to give you one. It's free fo charge. Actually maps showing subway routes are posted at most stations.
  #Person1#: Do I have to pay an additional fare to change trains?
  #Person2#: No, you don't have to. Here comes the train.