THEM: i would like the hats and the balls  YOU: sorry, but i need the hats. you can have the books and balls if youd like  THEM: how about the books, one hat and the balls  YOU: nope sorry. i need both books  THEM: then i need both hats and both balls  YOU: no deal. sorry  THEM: i'll take one of each  YOU: deal  THEM: thanks.