Q: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
THEM: i'd like the hat and two books.  YOU: i would like the hat and both balls  THEM: you can have the balls and one book. i keep the hat and one book.  YOU: if you get the hat then i want everything else  THEM: ok. i'll take the hat. you can have the rest.  YOU: ok.
A:
Yes