TASK DEFINITION: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
PROBLEM: THEM: what if i take the books and we split up the hat and balls  YOU: that's actually the same offer i wanted to propose to you. i assume our values are similar. how about we split it right down the middle? we each get a book and split the rest?  THEM: actually i wanted both books and will split the rest however you want  YOU: i understand you want both books, but i won't part with both. i'll take 1 book, two balls ; you take 1 book 1 hat 1 ball.  THEM: that won't work for me. i will only take just 1 book if i also get a hat and 2 balls  YOU: again, i'm going for fair or no deal. 3 items each, 1 of them being a book.  THEM: in that case i want 1 book and 2 balls  YOU: i can atleast agree to that. deal  THEM: done.

SOLUTION: Yes

PROBLEM: THEM: i would like the hat and the book and you can have the balls  YOU: i was going to offer the same thing... i can give the balls the book  THEM: so are you offering me the book and all three balls?  YOU: yes  THEM: agree to that deal.

SOLUTION: Yes

PROBLEM: THEM: i would like hat book and 2 balls  YOU: i need the hat, i cannot make any deal without it  THEM: i also need the hat  YOU: you can have the books and some of the balls but i have to have the hat  THEM: i need the hat and a book. you may have a book and all the balls  YOU: i have to have the hat or no deal  THEM: ok then no deal  YOU: no deal  THEM: are we agreeing on no deal  YOU: no deal, i have to have the hat.

SOLUTION:
No

