TASK DEFINITION: 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.
PROBLEM: 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.'

SOLUTION: No

PROBLEM: Context: 'That sounds pretty reasonable as I am in need of firewood the most. Would it be most reasonable to each take what we need most and split the water down the middle?' 'Yes, it would.' 'I think that sounds fair. The problem is that there are 3 waters and one of us would get two and the other one. How should we sort that?'
Utterance: 'You can take the two water. I am not that thirsty most days.'

SOLUTION: Yes

PROBLEM: Context: 'Hello, how are you doing today?' 'Very good. How about you?'
Utterance: 'I'm doing well. I'm looking forward to going on my camping trip but will need some additional items to make sure the trip is safe, healthy, and enjoyable. '

SOLUTION:
No