instruction:
Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
question:
THEM: i would like the 3 books and the ball. YOU: i need the books THEM: you can have 2 books but not all of them, ill take the rest YOU: how about two books and the ball? THEM: no, i need the ball and at least one book and the hat YOU: ok two books for me and the hat THEM: okay deal.
answer:
Yes

question:
THEM: i would like the book and a ball YOU: would you give up the book for both balls? THEM: no, i need the book YOU: ok, i agree to your first offer then.
answer:
Yes

question:
THEM: book and balls YOU: hats and balls, no books THEM: i must have the book YOU: sorry no deal on this one THEM: then no deal YOU: no deal THEM: no deal YOU: no deal THEM: no deal YOU: no deal.
answer:
No