Q: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
THEM: two hats and one book please.  YOU: i can not make that deal. i need those items as well. if you take the book i would need everything else  THEM: that doesn't sound great. how about i keep the two hats and you can have everything else.  YOU: okay deal.
A:
Yes