Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: hello. i'd like a book, a hat and one ball. YOU: sorry i cant do that. i would like the hat and book and you can have the balls THEM: i definitely can't give up the book. i would be willing to give you the hat and one ball, but i would need the other two balls. YOU: sorry, it looks like we wont be able to make a deal. i need the hat and book to make it worthwhile for me THEM: i need the book to make it worthwile for me... YOU: i understand. looks like no deal can be made THEM: yes, sorry. no deal. YOU: agreed. now just waiting for the button. THEM: we have to say no deal to each other until it pops up YOU: yep. no deal.
Output:
No