instruction:
Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
question:
THEM: i'd like to have the two hats and book  YOU: how about you can have the two hats and one ball, i keep the books and 1 ball... right down the middle.  THEM: not much for sports, balls don't do much for me.  YOU: well, they do not help me at all, so i'd prefer we meet down the middle somehow. do you propose anything different?  THEM: alright, i'll take two hats and the two balls if they don't do a thing for you.  YOU: and we're still going to roll with an uneven split. in that case, i'll take the books and a hat, then?  THEM: yes sir.
answer:
Yes


question:
THEM: i need the ball and two hats.  YOU: that's fine, i'll take the book and one hat then?  THEM: great.
answer:
Yes


question:
THEM: you can have the ball if i can have the books and hat  YOU: 4 / 1 items is not very fair. i will give you all 3 books if i can have the hat and the ball  THEM: deal.
answer:

Yes


