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

Ex Input:
THEM: i need the book and 1 hat and you could keep 1 hat and all the balls YOU: if you are going to take the book i need both hats and three balls THEM: okay then i will just take the book and you keep all the rest YOU: okay deal. thank you.

Ex Output:
Yes

Ex Input:
THEM: what do you want? YOU: the books THEM: ok YOU: ok.

Ex Output:
Yes

Ex Input:
THEM: book and one hat and you could keep the rest? YOU: sorry i cant do that. i would like the hats and balls.

Ex Output:
No