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

Example Input: THEM: i would like both balls. YOU: could you get by with just one of them? THEM: ok, i will take one ball and both books. YOU: how about you take both balls and i take the rest. THEM: deal.
Example Output: Yes

Example Input: THEM: hello. i'd like to trade you for some basketballs YOU: i can give you both balls if i can have the rest? THEM: that's a deal. YOU: okay, thanks!
Example Output: Yes

Example Input: THEM: i will like to give you two hats YOU: i prefer 3 books and 1 hat THEM: what about 1 book 1 ball and 2 hat YOU: i don't want balls. i'll take 2 books and 2 hats THEM: okay is a deal YOU: ok deal THEM: good YOU: 2 books and 2 hats THEM: yes.
Example Output:
No