TASK DEFINITION: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
PROBLEM: THEM: i can offer all 3 balls  YOU: i need the book and hat  THEM: i can't give the book, i'll offer the hat and 2 balls  YOU: okay.

SOLUTION: Yes

PROBLEM: THEM: what do you want?  YOU: the books  THEM: ok  YOU: ok.

SOLUTION: Yes

PROBLEM: THEM: gimme the balls  YOU: i will give you the balls if you give me the rest.  THEM: ok  YOU: deal.

SOLUTION:
Yes

