TASK DEFINITION: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
PROBLEM: THEM: i would like the books and the hat. YOU: i want the hat and ball, you keep the books THEM: can have the books and the ball? YOU: no i want the hat and the ball, or the hat and thebooks THEM: none of those are going to work. YOU: ok the hat and the ball, or the hat and two books for me?

SOLUTION: No

PROBLEM: THEM: i would like everything YOU: i need the books and the ball you can have the hats THEM: i need the hats and the ball YOU: okay deal.

SOLUTION: Yes

PROBLEM: THEM: i just want the book YOU: how about you take two books and give me everything else? THEM: i really can't give up the hat YOU: all you want is the hat?

SOLUTION:
Yes