TASK DEFINITION: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
PROBLEM: THEM: i will give you a hat, a book and the ball.  YOU: i only want the ball, you can have everything else  THEM: fair enough to me.

SOLUTION: Yes

PROBLEM: THEM: i'd like 1 of each  YOU: okay, can i get your balls and books?  THEM: nope  YOU: what about hats :  THEM: i'd take ball and 2 hats  YOU: ok  THEM: ok.

SOLUTION: No

PROBLEM: THEM: hi, i need the book and 2 hats  YOU: how about i get one of your hats?  THEM: sure, i`ll take the book and one hat.

SOLUTION:
Yes

