answer: The subway is coming. #Person1# wants to squeeze in but #Person2# lets #Person1# wait for the people to get off first. #Person1# wants to arrive at the Aidan station quickly to use the restroom.
documents: #Person1#: Dad, hurry! The train is coming. Aha, I am a superman.
  #Person2#: Don't rush, behave yourself please! Let the people get off first.
  #Person1#: Oh, we should. There are so many people. What if the train got full before we could get in?
  #Person2#: But, if we all pushed our way in, nobody could get off, and nobody could get in either.
  #Person1#: How many stops are there to the Aidan station?
  #Person2#: There are four more stops.
  #Person1#: Oh, my God!
  #Person2#: What's wrong? You are like a little monkey, on pins and needles!
  #Person1#: Because I need to use the restroom. Is there a restroom on the train?
  #Person2#: No, not on the train, but in the station.
  #Person1#: Why not? You told me that subway is a kind of train. If it had no restroom. what kind of train would that be?
  #Person2#: Well, that is a question. You want to offer a suggestion?
  #Person1#: Oh, yeah, but not today. I am busy with praying the subway may get there as fast as possible.
  #Person2#: I guess you'll never forget today.