TASK DEFINITION: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
PROBLEM: THEM: i only need the book - the rest can be yours YOU: deal THEM: sounds good - thank you.

SOLUTION: Yes

PROBLEM: THEM: you take the books and i get the hat and ball YOU: i can not make that deal. i need the ball and two books THEM: i can't make a deal without the ball YOU: i can not either. no deal. i'm sorry. THEM: no deal then YOU: no deal. THEM: no deal YOU: no deal. THEM: no deal YOU: no deal.

SOLUTION: No

PROBLEM: THEM: hi there. i'd like to take all of the books. YOU: i will keep the hat, ball and 1 book. THEM: how about the ball and one book? YOU: that would not work. how about the hat and one book? THEM: i don't need a ball for anything. YOU: ok i'll keep the hat and ball then and you can keep the books. you run a hard bargain. THEM: great, you got a deal.

SOLUTION:
Yes