Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: i would like the ball and the hats.  YOU: i would like one of each item  THEM: how about you give me the ball and one other object of your choice?  YOU: i will take 2 books and 1 hat. you take 1 hat and the basketball  THEM: deal.
Output:
Yes