Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.

THEM: hey there! how do you feel about letting me take the book and the balls in exchange for the hats to you?  YOU: i don't really want to give up the book  THEM: unfortunately that's the only thing of value i have. so i can't really part with it.  YOU: so there is absolutley nothing else of value other than the book???  THEM: the balls have minimal value ; i'd be willing to give you 2 balls, 2 hats for 1 book, 1 ball?  YOU: i will take the 2 hats and 2 balls thanks.
Yes

THEM: need teh book and ball  YOU: i need the book and nothing else  THEM: ok.
No

THEM: you can have the hats.  YOU: i would like that thanks, and i would like either all the balls or the book  THEM: i can give you one ball.  YOU: i need the book 1 hat and 2 balls  THEM: no way.  YOU: then i need both hats and either all the balls or the book  THEM: ok, i will take all the balls.  YOU: so i get both hats and the book, and you get all the balls. deal?

Yes

