Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: how about you get three hats YOU: and the ball THEM: no ball YOU: then book and all the hats. THEM: all hats YOU: and the book or ball THEM: nope YOU: nope! THEM: you get one book ok YOU: no.
Output:
No