Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: gimme hat and a book YOU: i can not let the hat go, i need the hat and 1 book THEM: need hat, or no deal YOU: i can not give up the hat, how about i take the hat and you get the rest? THEM: cant be done YOU: come on, i will just take the 1 hat THEM: negative YOU: no deal then i guess THEM: correct YOU: that is bad THEM: superbad.
Output:
No