answer: #Person1# tells #Person2# that #Person2# can take the shuttle to Grand Central to get to the East Side.
documents: #Person1#: What's the matter?
  #Person2#: Which subway should I take to get to the East Side?
  #Person1#: Oh, you have to take the shuttle to Grand Central.
  #Person2#: Which train is that? Which platform does it leave from?
  #Person1#: It's not on this platform. These trains are uptown and downtown, not crosstown. You have to go up these stairs over there.