You will be given a definition of a task first, then some input of the task.
Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.

THEM: i would like the ball and book. you can have the 3 hats.  YOU: i'd prefer just the book and you can have everything else  THEM: no, sorry. i really need the book.  YOU: yeah, i do too. it's literally the only thing of value on my side  THEM: i suppose it'll be a no deal then.  YOU: for the sake of us not both getting screwed you can take the book and i'll take the rest  THEM: no i really need the book and ball.  YOU: sure, pay it forward. deal  THEM: thanks.
Output:
Yes