Detailed Instructions: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Problem:THEM: i want the hat and ball  YOU: i need ball  THEM: so do i : ( what value are books to you?  YOU: - 5  THEM: books are not negative 5. i need ball and hat  YOU: 0, they are worth 0. i need ball.  THEM: ok, progress. they're zero for me too. so you take ball, i take hat  YOU: ok.
Solution:
Yes