Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.

THEM: you can have all of the books, if i can have the hats and ball YOU: i need one hat at least and 3 books THEM: i really like those hats YOU: can't let you all the hats. sorry, i need at least one hat THEM: ok. i'll take one hat and one ball.
Yes