TASK DEFINITION: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
PROBLEM: THEM: i want the two hats. you can take everything elsr  YOU: i need two hats.. i'm bald and a siamese twin.  THEM: i can not do without the hats.

SOLUTION: No

PROBLEM: THEM: hello. i would like two books and the ball  YOU: i really want the ball, you can have the rest  THEM: okay deal.

SOLUTION: Yes

PROBLEM: THEM: i'll take the book and two balls you.  YOU: fine, i get both hats.

SOLUTION:
Yes

