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

THEM: what would you like YOU: i need the books and the ball. THEM: how about being fair, you take all books and i keep the rest YOU: deal. THEM: deal.
Yes

THEM: if i can have the balls and one hat you can have the rest YOU: deal THEM: great!
Yes

THEM: i would love the books and the hat YOU: how about 2 books and a hat? THEM: sure.
Yes