Teacher:Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Teacher: Now, understand the problem? Solve this instance: THEM: if i can take the book and a ball, you can have a ball and all the hats  YOU: you can have the book but, i would need the rest  THEM: i would need at least a ball as well to make a deal  YOU: okay then if that is the best you can do we can make that deal.  THEM: great!
Student:
Yes