Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: you can have 3 books, i will take the rest  YOU: i will give you the basketball and a book.  THEM: you can have 4 books, final offer  YOU: that is deal is not fair and i will not accept. split it down the middle or no deal.  THEM: fine walk away with nothing  YOU: you are doing the same. hope you enjoy your rejection.  THEM: alright i'll take a hat and a book  YOU: awesome. pleasure doing business with you.
Output:
Yes