answer: #Person1# wants pizza but #Person2# wants a burger for lunch.
documents: #Person1#: Do you know what you want to eat for lunch?
  #Person2#: What do you feel like having?
  #Person1#: I want to get some pizza.
  #Person2#: I had pizza for lunch yesterday.
  #Person1#: Tell me what you want to eat.
  #Person2#: Do you want to get a burger?
  #Person1#: See, I had a burger for lunch yesterday.
  #Person2#: Think of something.
  #Person1#: How about I get pizza and you get a burger?
  #Person2#: Let's do that then.
  #Person1#: Where do they sell both at?
  #Person2#: They sell pizza and burgers at the cafeteria.