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

Example Input: THEM: can i have the books and the balls please? YOU: can i have the hats and we split the balls? THEM: no, i have to have both balls if it has to make sense YOU: are you sure? THEM: yes YOU: ok, i'll take the hats THEM: deal.
Example Output: Yes

Example Input: THEM: i need the 4 balls and one hat and you could keep the book and one hat YOU: sorry thats just not fair on my side. i need the book and 2 balls just to cut in half the score THEM: okay done.
Example Output: Yes

Example Input: THEM: would you be willing to give me the book and that hat and you get the 4 balls? YOU: not really. i need the book and hat.. if i give up either, i'd need all four balls. THEM: im willing to give all 4 balls for the hat and book YOU: no can do. i need the hat and book. if i give up either, i need all four balls. THEM: no, i will give the book and 3 balls YOU: no deal THEM: thats my offer. YOU: as is mine. THEM: okay, i will keep just the hat and you can get everything else YOU: very well.
Example Output:
Yes