Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: hey  YOU: hi  THEM: could i have the books and you have the hats  YOU: no way!  THEM: ok  YOU: i would like the books. you can have the rest.  THEM: no thanks  YOU: i'll take the books and the hats. you take the basketball.  THEM: id rather you get the books and ill keep the rest then  YOU: fair enough.
Output:
Yes