answer: Mary and her grandpa are in a hurry for a train, but Mary turns into a road with more traffic lights ahead. Her grandpa tells her the time and she thinks they can't make it to the station in time.
documents: #Person1#: I think we're going to miss the train. Must we go this slowly?
  #Person2#: Yes, we must. As they say, it's better to be safe than sorry.
  #Person1#: What does that mean?
  #Person2#: It means we don't want to have an accident.
  #Person1#: Mary, I think you've missed the turn.
  #Person2#: No, grandpa. There are still four or five blocks to go. Then we have to turn right.
  #Person1#: Doesn't Ellen always turn next to the school?
  #Person2#: Sometimes, grandpa. But that's a slow way to go. We're in a hurry.
  #Person1#: Oh, no. There, the more traffic lights ahead. I hope the lights stay green.
  #Person2#: Oh, no. There it goes. A red light and we have to stop for red light.
  #Person1#: Do you think we'll make it to the station in time?
  #Person2#: I don't know. How long will we wait at this light? What time do you have, grandpa?
  #Person1#: 2:50.
  #Person2#: Oh no, I don't think we're going to make it. There is only 35 minutes left.
  #Person1#: Bad luck.