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

Ex Input:
THEM: you get all the books YOU: ok deal i will take all 3 books and you can have the rest THEM: deal.

Ex Output:
Yes

Ex Input:
THEM: hello, i would like the book and 2 of the remaining items, your preference YOU: i also need the book THEM: what's the book worth for you? YOU: 6 THEM: okay, it's 5 for me, so i can let you have it, but i get the rest YOU: sounds like a deal..

Ex Output:
Yes

Ex Input:
THEM: best i can do is book and 2 hats or book and 2 balls YOU: i'll take the book and two hats THEM: no i mean ill take them not give them to you YOU: i need the two hatd, it does not work out mathemetically for me otherwise THEM: so ill take the book and 2 balls then YOU: ok THEM: deal.

Ex Output:
Yes