Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.

Ex Input:
THEM: i'd like the book and the hat.  YOU: if i can have the book and the balls you can have the hat  THEM: i have absolutely have to have atleast the book or i can't make a deal.  YOU: you can have the book if i can have the rest  THEM: deal.  YOU: great! thank you!

Ex Output:
Yes


Ex Input:
THEM: i would like both books and the hat  YOU: okay  THEM: ok deal.

Ex Output:
Yes


Ex Input:
THEM: can i have the book and one ball thank you kindly?  YOU: deal.

Ex Output:

Yes


