Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: if i can have the ball and the book you can have the hats YOU: no deal THEM: okay what deal do you propose? i can not make a deal without the book and one other item YOU: the book and two hats for me THEM: i can not make a deal without the book. i need the book and one other item YOU: okay give me the ball and two hats THEM: okay deal. YOU: deal.
Output:
Yes