Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Q: THEM: hey there, i'd like the book and 2 cats, you get 2 balls and 1 hat? thoughts?  YOU: you can have the book, only if i get 2 balls and 2 hats  THEM: oh fine, that's fair enough.  YOU: ok.
A: 
Yes