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

Ex Input:
THEM: i would like 1 of each  YOU: i have to have hat.  THEM: ok.

Ex Output:
Yes


Ex Input:
THEM: i want the ball and all the books.  YOU: you're welcome to have the ball. i'd like the hat, and three books.  THEM: i'll take the ball, but i want either the hat or two book with it.  YOU: can't do that. at the very least, i'd need two books and the hat. i'd be willing to give you the ball and one book.  THEM: ok deal  YOU: dea ;

Ex Output:
Yes


Ex Input:
THEM: hi, did you want the basketballs, and one hat?  YOU: sure.

Ex Output:

Yes


