Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: you keep the ball and i get the rest YOU: thanks but i want the books and the ball THEM: one book and one hat and one ball for you, fair YOU: not fair for me sorry. no deal THEM: i take books and you keep the rest YOU: nope sorry. i need the ball and books or no deal THEM: no deal YOU: no deal THEM: no deal YOU: no deal.
Output:
No