Instructions: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: i need the hat and 2 books  YOU: any chance you'd take three books and i could have the hat and two balls?  THEM: i need the hat and 1 book  YOU: alright, two balls and two books for me then?  THEM: yes, that would be fine.
Output:
Yes