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

Example Input: THEM: i would like the hat, two books and 2 balls  YOU: gimme a book  THEM: okay, you could have one book. so, i could have one book, one hat and two balls?  YOU: ouch, no. gimme book and a ball  THEM: okay so you could have one book and one ball  YOU: ok, thanks sir / ma'am  THEM: so, i get one book, one ball and the hat is that a deal?  YOU: ok.
Example Output: Yes

Example Input: THEM: ill take four books  YOU: if i can have the hat and ball that is a fair deal.  THEM: thx.
Example Output: Yes

Example Input: THEM: i'd like the book, and you can have everything else  YOU: no, i need the book and the hats  THEM: the hats and the balls have no value to me  YOU: no book, no deeal  THEM: ok, no deal, but we'll have to type a while to get a no deal reached message  YOU: you have to give a little. i need the book and 1 hat  THEM: i can' leave myself with no points, the book is the only one that has value to me  YOU: your points are of no concern to me i need the book and you can be left with 0  THEM: ok, no deal  YOU: you can have the hats and balls i will be taking the book, accept the deal  THEM: no deal.
Example Output:
No

