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

Example Input: THEM: hello, i need to obtain the hat and am willing to give you the books and balls in return.  YOU: yucky deal, but i suppose its fair enough.. deal.
Example Output: Yes

Example Input: THEM: i would like the book and the hat. you can have the balls.  YOU: alright.
Example Output: Yes

Example Input: THEM: you can have the hats, i'll take the ball and the book  YOU: deal.
Example Output:
Yes

