answer: #Person1# asks Mary to help set the table for four, and Mary agrees.
documents: #Person1#: Mary, can you help me set the table?
  #Person2#: Sure.
  #Person1#: This is usually my chore.
  #Person2#: I don't mind helping.
  #Person1#: We need to set the table for four.
  #Person2#: So that's four plates, four forks, four knives, and four spoons?
  #Person1#: That's right. Mom didn't know where to buy chopsticks for you.
  #Person2#: Don't be silly! I know how to use knives and forks.