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

[Q]: THEM: i can give you both balls YOU: eh, how about i give you two books and a hat in exchange for two balls THEM: no i want the hat and the books YOU: ok deal THEM: okay you take the 2 balls then i get the hat and the 3 books.
[A]: Yes

[Q]: THEM: i would like the book and the hat. you can have the balls. YOU: alright.
[A]: Yes

[Q]: THEM: i can offer you one ball. YOU: ha, i need the hat and 2 balls THEM: i can give you all the balls if you give me everything else YOU: i need another item with the balls to make that work THEM: i can offer you the balls and one book YOU: okay.
[A]:
Yes