TASK DEFINITION: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
PROBLEM: THEM: i'll take the hats, you can have everything else YOU: ok.

SOLUTION: Yes

PROBLEM: THEM: hi, i need the ball. YOU: ok just the ball then THEM: yes, just the ball is enough for me. YOU: ok.

SOLUTION: Yes

PROBLEM: THEM: i would like both books, you may have the rest. YOU: i need 1 book, you can have 1 book and 2 hats THEM: deal. YOU: sounds good you get 1 book and 2 hats.

SOLUTION:
Yes