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 book and 2 balls YOU: i need the balls THEM: you can have all of the hats. i need the book and the 2 balls YOU: i don't want hats THEM: i need at least one of each item YOU: i cant really give up either ball THEM: final offer, i need one of each item to make a deal YOU: ok deal.
Output:
Yes