Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Q: THEM: i would like the balls and a book.  YOU: can i just have two books?  THEM: i can let one book go, but not both.  YOU: ok, i want the balls then  THEM: are you interested in the hat at all?  YOU: no  THEM: ok. how about you take two balls. i take two books and the hat?  YOU: no, books are mine or no deal  THEM: i thought you wanted the balls now?  YOU: nah changed my mind  THEM: well, you offer me something then. can't read your mind. especially if you keep changing it.  YOU: two books for me, the rest for you.  THEM: i can do that.  YOU: a book and two balls for me then?  THEM: uh. no. per your previous response. two books for you. the rest for me.
A: 
Yes