Teacher: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Teacher: Now, understand the problem? If you are still confused, see the following 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.
Solution: No
Reason: Both participants do not agree to the deal, so the answer is No.

Now, solve this instance: THEM: ill take the books and the ball  YOU: how about i take 1 book and wo hats and you take the rest?  THEM: that doesnt give me enough points  YOU: how about i take 3 books and you take the rest?  THEM: thats even worse  YOU: it's actually the same  THEM: for you maybe  YOU: offer me a better deal than the 1 st one  THEM: i cant  YOU: so we agree on you take two books and the ball and i take two hats and one book  THEM: no  YOU: counter  THEM: no deal.
Student:
No