answer: #Person1# buys a bottle of Centrum, a dozen toothbrushes, some baby's wipes, a small bottle of aspirin, and an excellent vitamin that #Person2# suggests is suitable for #Person1#'s son from #Person2#.
documents: #Person1#: I'd like to buy a bottle of Centrum, a dozen tooth brushes, some baby's wipes, and a small bottle of aspirin. 
  #Person2#: Centrum? We have bottles of thirty and one hundred tablets. Which kind do you want? 
  #Person1#: Give me one bottle of one hundred tablets. 
  #Person2#: And what kind of toothbrushes would you like? 
  #Person1#: Can I have a look at them? 
  #Person2#: Sure. This brand is supposed to be very good, but they're expensive. Those are new products. They come in several colors and sizes. There is also hard, soft, and medium. 
  #Person1#: Are they cheaper? 
  #Person2#: This one is 10 % off. That one has no reduction, but you can get a free tube of toothpaste with six toothbrushes. 
  #Person1#: So if I buy a dozen, I'll get two free tubes of toothpaste? 
  #Person2#: That's right. 
  #Person1#: Good. I 'll take a dozen of them then. 
  #Person2#: And here is your aspirin. What else did you say you want? 
  #Person1#: Baby's wipes. Johnson's. 
  #Person2#: Anything else? 
  #Person1#: Well, actually I'd like to buy some vitamins for my son. He's five months old. Can you suggest any? 
  #Person2#: Sure. Here you are. This one is excellent. Just mix one drop of it with milk. 
  #Person1#: Thanks. That'll be all.