TASK DEFINITION: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
PROBLEM: THEM: hello. which item(s) do you want the most? YOU: i would like the books and ball. the hats i can negotiate a bit more. what about you? THEM: the ball and hats are the highest value for me. i would be willing to give you one hat and two books if you allow me to have a ball and a hat. YOU: unfortunately, the ball has the highest value for me as well. let's see how we can do this. THEM: in order to make up for losing the ball, i would need all of the other items. are you willing to do that? YOU: i'd be willing to let you have both hats and one book. how's that? THEM: i really need both hats and both books to break even. YOU: i need at least a book w / the ball to break even, too. THEM: i can't agree to that. YOU: ok. i can't agree to anything else either. wouldn't be a good deal for me.

SOLUTION: No

PROBLEM: THEM: i need 2 hat 1 book, what do u want YOU: i need the book, a hat and the ball THEM: i don't have hat but holds 4 book and 6 ball YOU: i need the book and 2 hats.

SOLUTION: No

PROBLEM: THEM: how about you get 1 ball and one book YOU: i want one of everything THEM: you can't do that YOU: i need the hat and two other items THEM: no deal YOU: how about the hat and one other item THEM: ok one ball.

SOLUTION:
Yes