Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
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Question: THEM: can i get the hats and the books? YOU: i was hoping for the hats and the ball. the books have no value for me, so you should take them for sure. THEM: i will take them, and you can have the ball. but i need the hats YOU: i can't do a deal without any of the hats. THEM: neither can i without all the hats YOU: then no deal THEM: no deal YOU: no deal THEM: no deal YOU: no deal.

Answer: No

Question: THEM: i would like the hats and the balls. YOU: you can have balls, but i would like 1 hat THEM: can i have both hats if you take everything else? YOU: balls have no value to me THEM: ok, so you want books and one hat?

Answer: Yes

Question: THEM: i would like the ball and hat YOU: i can't give up the ball and the hat. how about i get the ball and 2 books. THEM: do you need the books? YOU: not if i can have the ball and the hat. THEM: i dont want them at all YOU: well i can't just take the books. THEM: ill take 1 book 1 ball YOU: okay that will have to work.

Answer:
Yes