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: how about 2 books and a hat for you and i will take the rest  YOU: no thanks, i'd rather have the basketballs only, and you can have everything else.  THEM: how about 1 basketball and 2 books for me  YOU: no, how about 2 basketballs for me, and you can have 3 books and the hat  THEM: no can't do it  YOU: i'll take 2 basketballs and the hat  THEM: i need at least one of the basketballs and 2 books  YOU: no can do.  THEM: we are at an impass, i can do 1 basketball, 1 hat and 1 book  YOU: sure.
Student:
Yes