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

Q: THEM: i'd like the book and some hats... let's talk! YOU: i'll take theball, the rest to you THEM: sounds great! deal.

A: Yes
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Q: THEM: i would only like the book YOU: i can not give up the book. would you be willing to make another deal? THEM: well, how about that then YOU: would you be willing to give up the book at all?

A: No
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Q: THEM: i need the book and 2 balls YOU: cant happen. i need the book and one other item to make a deal with you THEM: the book is a non negotiable YOU: if you have the book i want everything else THEM: fine.

A:
Yes
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