instruction:
Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
question:
THEM: book and 2 balls to me YOU: deal.
answer:
Yes

question:
THEM: i would like 2 books. you can have the rest YOU: deal.
answer:
Yes

question:
THEM: i want the balls and the book YOU: have to give up one ball for that to work THEM: how about i get both balls and you get the hats and book? YOU: agreed.
answer:
Yes