THEM: hi i would like the balls and hats and you can have the book  YOU: i can give you the hats for the book but i would like the balls too.  THEM: so i can get the hats and book?  YOU: just the hats  THEM: nope, that wont work for me  YOU: i can split the balls with you  THEM: so youre saying we each get a ball then i get the hats and you get the book?  YOU: correct  THEM: deal.