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 hat and all balls  YOU: can i keep one ball  THEM: then i also need 2 books  YOU: sorry no deal  THEM: let's put it this way. i need the hat and either all balls or all books. you choose  YOU: deal  THEM: which?  YOU: take all balls and hat i keep all book  THEM: ok.

Ex Output:
Yes


Ex Input:
THEM: you can have the balls i want the rest  YOU: i really want the books, you can have the hats  THEM: sorry i cant give you both books i can give you a book and a ball  YOU: one book and both balls  THEM: no one book and 1 ball  YOU: sorry, but if i am only hetting one book, i need both balls  THEM: sorry that wont work for me thats the best i can do  YOU: then i guess we are at a stalemate  THEM: guess so  YOU: what about the hats?  THEM: i can give you a hat and a ball  YOU: i wwant both hats, one book and one ball.

Ex Output:
No


Ex Input:
THEM: i would like the ball and the book and you can have the rest.  YOU: no deal  THEM: i would like the book and the ball then and you can have the rest.  YOU: i need the ball thats it  THEM: the ball's my highest valued item as well, i can't give it up.  YOU: hit the no deal button  THEM: it's grayed out.  YOU: keep saying no deal  THEM: no deal.  YOU: no deal.

Ex Output:

No


