answer: #Person2# accidentally dropped his phone in the toilet and wants to buy a new one. #Person1# recommends one to him.
documents: #Person1#: Hello sir, may I help you?
  #Person2#: Yeah, I accidentally dropped my phone in the toilet.
  #Person1#: I see. Well, you have come to the right place. We have over one hundred models of more than twenty leading mobile phone manufacturers.
  #Person2#: Sounds good. I don't want it to be too expensive, maybe something mid-range.
  #Person1#: We have this new ETC smart phone. It comes with the Android OS so you can download applications. It also has a built-in camera, mp3 player and touch screen. It works on the 3G network so you have fast access to the internet wherever you are.
  #Person2#: What about Wi-fi?
  #Person1#: Of course! You can access the internet from any hotspot as well as from home.
  #Person2#: One last thing. Is it waterproof?