Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: you can have all the basketballs if i can have the rest.  YOU: balls aint worth but a pence to me going to need more than that  THEM: okay, how about you get all the basketballs and a book, if i get the hat and the other book?  YOU: i can live with that.
Output:
Yes