Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
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Question: THEM: balls and hats for me YOU: can i have one ball and the book? THEM: yes deal.

Answer: Yes

Question: THEM: i will give you both hats if you give me both balls YOU: i'll take the ball, the rest to you THEM: deal.

Answer: No

Question: THEM: i want the basketball! YOU: i'm not going to give up the basketball under any circumstances. THEM: you can have the 4 books and 1 hat YOU: i want the basketball, and 2 books. THEM: i'll take the basketball and the hat and you can have the 4 books. YOU: like i said, i'm not going to give up the basketball under any circumstances. i don't think we'll be able to make a deal. THEM: i agree. YOU: shucks. but as a last resort. i'll offer you everything except the basketball. THEM: you know what, fine. just this once.

Answer:
Yes