answer: #Person1# and #Person2# are planning to buy a bike for Tim's birthday. #Person1# wants to buy shoes. #Person2# wants some shirts.
documents: #Person1#: There's a big sale on clothes and sporting goods at Riverside Mall.
  #Person2#: Sporting goods? Is that bike Tim wanted on sale?
  #Person1#: Yeah, it's 30 percent off the regular price.
  #Person2#: Well, maybe we could get it now and hide it until his birthday.
  #Person1#: Yeah, it's a couple weeks away, and we don't have anything yet.
  #Person2#: Don't buy him underwear again. He hates that.
  #Person1#: I know, I know, but if I didn't buy it for him, he'd never buy it.
  #Person2#: See anything else we need there?
  #Person1#: Well, all shoes are 20 percent off.
  #Person2#: Shoes? You already have a closet full of shoes.
  #Person1#: I know, but another pair can't hurt.
  #Person2#: Oh, all right. I need some new shirts, too. Let's go after breakfast.