Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Q: THEM: i need the hat.  YOU: i need the hat as well... are you willing to make a deal without it?  THEM: i can not - it is the only thing of value to me. you can have everything else.  YOU: no deal. i'm sorry i need the hat as well.
A: 
No