Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: i really like the books and i like the hats, too. what do you want?  YOU: i have nothing of high value, are the books worth it for you? you get both books, i get the rest?  THEM: i get both books and one hat, you get the rest?  YOU: i'd be losing out if i dropped the hat. i think based on your initial offer and interest in the books, the other items should be left to me.  THEM: i really think the fair thing would be to split the 6 items so we each have 3.  YOU: we know its not about the quantity of items, but the value of their points. your books hold a slightly substantial value based on your initial interest. i'm willing to give them both up for the remaining items.  THEM: i see two of each item, so we actually do know the quantity of items. i don't understand?  YOU: there's 6 items, but the value of the item is different to each of us as per the instructions. you wanting both books means they hold a substantial value... i'm willing to concede to the books, but i'd like the other 4 items since they're low value to me.
Output:
No