answer: #Person1# discusses with #Person2# about how long it takes to drive to London, taking account of the distance, traffic jams, and speed.
documents: #Person1#: How long will it take us to drive to London?
  #Person2#: I think it's a distance of 180 kilometers from here to London, so it should be a two-hour drive on the motorway.
  #Person1#: That's unless there is a traffic jam. It could take three hours.
  #Person2#: You're right. We will be able to travel at high speeds at the beginning and end of the journey, because we will be in built-up area.
  #Person1#: So, shall we allow three hours to cover the distance?
  #Person2#: Ok. You haven't seen my company car, have you?
  #Person1#: No. let me take a look. . . It's longer than my car.
  #Person2#: I think it's over five meters long. I can't remember exactly. It has a maximum speed of over 200 kilometers an hour.
  #Person1#: Wow! That's fast! I don't think we will be traveling that fast on the motorway.
  #Person2#: We can't. if we went that fast, we would break the speed limit.