THEM: i'd like the book and the balls.  YOU: i would also like the book, you can keep the balls  THEM: i really want that book. you can have both hats and one ball.  YOU: i don't want any balls. i want the book  THEM: the book is really the only thing i want.  YOU: me too  THEM: can i have the book?  YOU: sure, but i will take everything else  THEM: deal.