answer: #Person1# tells #Person2# the transportation is convenient in Beijing.
documents: #Person1#: Is this your first time visiting Beijing?
  #Person2#: Yes. Is it easy to get around?
  #Person1#: I think so. You can get anywhere by bus and taxi is not expensive.
  #Person2#: How about the subway?
  #Person1#: It's also convenient, but it's usually crowded.