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

Example Input: THEM: what do you want?  YOU: the books  THEM: ok  YOU: ok.
Example Output: Yes

Example Input: THEM: i'd like both hats and 2 books please?  YOU: i would like that but i can't, i need all books and one hat and one ball  THEM: that doesn't work for me. i need both hats and at least 1 book.  YOU: ok both hats and one ball  THEM: confirming that i'm taking 2 hats and 1 book not the ball?  YOU: yes.
Example Output: Yes

Example Input: THEM: which items do you want?  YOU: the balls and a book  THEM: how about you take two balls and one book and i'll take one ball one hat and one book?  YOU: deal.
Example Output:
Yes

