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

Ex Input:
THEM: i'd like the book and the balls, you can have all the hats.  YOU: deal.

Ex Output:
Yes


Ex Input:
THEM: hey, can i have everything?  YOU: no i want 1 hat and 1 balls  THEM: how about 4 balls and i get the hats and books  YOU: what about i keep 1 hat and 1 book you can keep everything else  THEM: no, lets go back to that 1 hat and 1 ball thing then if that's the case  YOU: okay deal i will keep 1 hat and 1 ball and you keep the rest  THEM: cool.

Ex Output:
No


Ex Input:
THEM: if i can have the book and the balls you can have the hats  YOU: no i really need the book you can have the rest.  THEM: i need the book as well. is there another deal you would be willing to make?  YOU: no i need to book more than anything else.  THEM: okay. no deal.  YOU: okay  THEM: no deal.  YOU: i will take a book and one hat and you can have the rest  THEM: that will not work for me. no deal.  YOU: i will take the book you can have everything else  THEM: no deal. you can press the button now.

Ex Output:

No


