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 really need the book. what do you want?  YOU: i need the book too?  THEM: the book is of very high value to me. i'd work with you on it if i could, but i can't make a deal without it.  YOU: how about this you get the book and i will take the rest?  THEM: that'll be fine. thanks!  YOU: deal.
Output:
Yes