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

Ex Input:
THEM: i'll trade 1 ball for 1 hat  YOU: how about you take all 3 balls and i'll take the rest?  THEM: no deal  YOU: i need at least a hat and a book  THEM: i need a hat  YOU: i do as well  THEM: how about a hat for two books  YOU: balls have 0 value for me  THEM: how about i give you a book for two balls  YOU: ok.

Ex Output:
No


Ex Input:
THEM: i could really do with like, three balls and two of those hats.  YOU: i will need the book and at least one or two other objects.  THEM: ok, i'll take the book. you can have everything else.  YOU: i liked your initial offer better. how about i get the book and either one hat or one ball?  THEM: you can take the book, but i really can't afford to let you walk with anything else.  YOU: ok, i agree, i will take only the book.  THEM: deal.

Ex Output:
Yes


Ex Input:
THEM: i want one of each.  YOU: i want the book and 2 balls ; will this work for you?  THEM: what will you give the book up for?  YOU: there's really nothing i can give the book up for... if we're going to fight over the book, i will concede and take the balls. hat is no value to me.  THEM: okay, i'll take the book and the hat then.

Ex Output:

Yes


