Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: what is your wish?  YOU: one ball and two hats?  THEM: i would like 1 ball 2 books  YOU: how about 1 ball and 1 book  THEM: 1 ball, 1 book, 1 hat for me?  YOU: no 1 ball and 1 book for you.  THEM: guess this is the best i'll get.  YOU: deal?  THEM: deal  YOU: ok.
Output:
No