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: 1 hat 1 book 1 ball and you tak the rest  YOU: you keep all books and i keep rest  THEM: 2 books 1 hat 1 ball  YOU: forget about ball  THEM: okay  YOU: so what do we got  THEM: allbooks all hats and you th ball  YOU: i need two hats at least  THEM: 2 hats 1 ball for u  YOU: deal.
Answer:
Yes