Part 1. Definition
Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Part 2. Example
THEM: i need the hats and the ball  YOU: i can give you one hat and the ball. i want 2 books and 1 hat  THEM: i have to have both hats and the ball or both hats and a book to make a deal  YOU: sorry, i won`t make a deal without a hat  THEM: if you take 1 hat i have to have everything else  YOU: sorry can`t do  THEM: no deal  YOU: yesh no deal, sorry  THEM: no deal  YOU: no deal.
Answer: No
Explanation: Both participants do not agree to the deal, so the answer is No.
Part 3. Exercise
THEM: you can have the balls, if i can have the rest  YOU: i need the book, just the book  THEM: i need the book as well... ill take the book and you can have the rest  YOU: this will be a stalemate, i must have the book  THEM: ok then no deal  YOU: no deal  THEM: who enters no deal  YOU: we have to negotiate further  THEM: oh ok... well lets say i get the book and a hat  YOU: the no deal button should light up soon.
Answer:
No