answer: #Person1# tries on a pair of sunglasses and will take them.
documents: #Person1#: How nice these sunglasses are!
  #Person2#: Yes, they are the latest designs. Would you like to try them on?
  #Person1#: I want to try on this pair.
  #Person2#: The round shape pair?
  #Person1#: That's right.
  #Person2#: I think it suits you well.
  #Person1#: I agree, how much?
  #Person2#: 120 yuan.
  #Person1#: It's not expensive. OK. I'll take them.