Q: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
THEM: do you need any of these more than the rest? all the same for me  YOU: i am particularly interested in the ball and the hat. you can have all 3 books if i can have the hat and ball. does this work for you?  THEM: sure thing books for me  YOU: it is a deal then, thank you!
A:
Yes