answer: Mary tells #Person1# she is waiting for a bus to the park because she enjoys walking alone in the park.
documents: #Person1#: Hello, Mary. Why are you standing here?
  #Person2#: I'm waiting for a bus. The buses are so full at this time of the day.
  #Person1#: Sure. Where are you going? I don't think this is your way home.
  #Person2#: You are right. I'm going for a walk in the park.
  #Person1#: Going for a walk even after along day's work?
  #Person2#: Yes. I always enjoy walking alone in the park after work.
  #Person1#: I see. Then why not go there on foot? It's not so far from here.
  #Person2#: Oh, no. I hate walking through the streets.