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: hey there! i'd like the book and you can have everything else. YOU: how i get the book one hat and two balls THEM: i will not give up the book as nothing else holds value to me, but you can have everything else. i just want the book. YOU: ok deal.
Output:
Yes