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

[EX Q]: THEM: i'll take two books and a ball if that works for you?  YOU: deal.
[EX A]: Yes

[EX Q]: THEM: i would like 2 balls and book  YOU: i would like the book and the hats  THEM: how about i have 2 balls and 1 hat?  YOU: ok and i will take the book and 2 hats.
[EX A]: Yes

[EX Q]: THEM: i'd like the two hats, rest is negotiable.  YOU: that seems pretty fair.  THEM: well, i said negotiable ; were you looking to keep everything else or share? : )  YOU: keep  THEM: would you be willing to share either the book or 1 ball?  YOU: no, sorry.  THEM: alright then.. i suppose i'll take the hats.
[EX A]:
Yes

