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: can i have the hat and two books please?  YOU: you can have the hat and 1 book  THEM: no deal  YOU: you can have all the hats, i get the rest  THEM: still no deal.  YOU: i will go with the first deal then  THEM: no ball no deal!  YOU: you can have the hat and 2 books  THEM: i thought i just said no ball no deal.  YOU: you want the ball? i get the rest then  THEM: i surely have to have either one hat or two books plus the ball. the ball was the basis of all this.
Student:
No