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

question:
THEM: i need one of each YOU: i need both books and a hat THEM: i can do that, if i get the ball and one hat YOU: so i would get both books and a hat? THEM: yes YOU: i can do that.
answer:
Yes

question:
THEM: i would like the ball and two hats YOU: how about all the hats and no ball? THEM: sorry that won't work. how about ball and one hat? YOU: hats are 0 for me... THEM: not much more than that for me either. what if i just got the ball? YOU: ok, you can have the ball, and take the hats too. deal.
answer:
Yes