THEM: i would like the ball and 1 hat and 2 books  YOU: i would like two hats, and two books and you keep the rest  THEM: i would like the ball and 1 hat and 1 book.  YOU: you can have the ball and two books  THEM: i don't want the books. 1 hat and 1 ball  YOU: fine, one hat and one ball for you.