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

Example Input: THEM: what do you desire?  YOU: i want everything but a ball. but i'll also go for three books.  THEM: deal  YOU: which one?  THEM: 3 books.
Example Output: Yes

Example Input: THEM: i really need to catch up on my reading. could i have the book and a couple of balls please  YOU: i can give you all of the balls if i can have the hat and the book  THEM: i can't give up my book  YOU: okay then can i have the hat and all of the balls?  THEM: what if i keep the book and 1 ball  YOU: okay that works. thank you!
Example Output: Yes

Example Input: THEM: i'd like all the hats, you can have the rest.  YOU: i need at least one of the hats if i am taking the rest  THEM: you can have two hats if i get a book and two hats.  YOU: i need the ball and a hat or i can not make a deal  THEM: so you take the ball and two hats and i take the rest, right?  YOU: yes.
Example Output:
Yes

