answer: #Person1# recommends Tsingtao beer to #Person2#. #Person2# takes two tins of it.
documents: #Person1#: May I recommend you Tsingtao beer? 
  #Person2#: Tsingtao beer? 
  #Person1#: Yes, sir. It's one of the best beers in China. 
  #Person2#: Really? 
  #Person1#: Yes. The beer is brewed by using carefully selected malts, rice, hops and natural water from the Lao Mountain. 
  #Person2#: How about its taste? 
  #Person1#: Fine, sir. 
  #Person2#: That sounds great. Two Tsingtao beers, please. 
  #Person1#: Tin or bottle? 
  #Person2#: Tin, please. 
  #Person1#: Would you like it on the rocks, sir? 
  #Person2#: No, thank you. 
  #Person1#: You're welcome.