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

Ex Input:
THEM: i can take both books you have the rest of items  YOU: deal.  THEM: perfect, nice doing a deal with you!

Ex Output:
Yes


Ex Input:
THEM: i will give you all the basketballs and the book.  YOU: deal.

Ex Output:
Yes


Ex Input:
THEM: id like the hat and two balls  YOU: i need the hat and the book  THEM: the hat is non negotiable for me,,, i can cede the rest but there can be no deal without the hat fr me... sorry  YOU: the hat is the only thing of value  THEM: for me too... so no deal i guess  YOU: no deal to be had here  THEM: nope... no deal... where's the button  YOU: you have to go back and forth a bit before it pops up  THEM: fair enough... no deal  YOU: there is nothing else worth anything for me.

Ex Output:

No


