answer: #Person1# and #Person2# are talking about bicycle types and prices.
documents: #Person1#: Frank and Peter want new bicycles. Petrol is very expensive, so they both want to cycle to work.
  #Person2#: They're looking at advertisements.
  #Person1#: What about this Curzon bike? It's very cheap. Only 80 pounds.
  #Person2#: Yes, but the Anderson bike is even cheaper, 865 pounds.
  #Person1#: How old is the Anderson one?
  #Person2#: It's a 2006 model.
  #Person1#: The Curzon is a 2008 model. It's newer.