The input is taken from a negotiation between two participants who take the role of campsite neighbors and negotiate for Food, Water, and Firewood packages, based on their individual preferences and requirements. Given an utterance and recent dialogue context containing past 3 utterances (wherever available), output Yes if the utterance contains the no-need strategy, otherwise output No. no-need is a cooperative negotiation strategy. It is used when a participant points out that they do not need an item based on personal context such as suggesting that they have ample water to spare. no-need can directly benefit the opponent since it implies that the item is up for grabs.

Input: Consider Input: Context: 'Hmm. I really need food too. I don't care much for water either. How about I take all 3 firewood, 2 food, and 1 water?' 'Yeah, that's not going to work for me.. I can give you two food if you really need it, but in exchange I'm going to need two of the water and all the firewood.  ' 'I will just take 3 firewood, 1 food, and 1 water. That work for you?'
Utterance: 'Tell you what.. now that I think about it.. you seem like you really need the firewood.. no problem.  I want you to have all 3 of them.. and you can have 1 water and 1 food, too.. does that work for you?  That would just leave me 2 food, 2 water, and no firewood.'

Output: No


Input: Consider Input: Context: 
Utterance: 'Can you spare some water? I need to take medication and I have run out.'

Output: No


Input: Consider Input: Context: 'Okay so would 2 firewood for you and 1 for me work, and 2 food for me and 1 for you?' 'I can definitely agree to that.  What was your second preference?  Water was my third.' 'firewood is my second preference and water is my third'
Utterance: 'Well, water doesn't benefit either of us much, so you can have two. So you will take 2 food, 1 firewood and 2 water?'


Output: Yes


