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.

[EX Q]: Context: 'That's unfortunate. I cannot agree to a deal without 2 pieces of firewood. I would have to walk away, but that would bee worse for both of us.' 'okay fine. will you give additional water?' 'Yes, that would work out. '
Utterance: 'because i have some firewood with myself. i required 1 firewood, 2 water and 1 food'
[EX A]: Yes

[EX Q]: Context: 'I was hoping to pick up a lot of wood. It has rained around here and the wood is soggy in the forest.' 'Which item do you prefer the most?' 'I know how to filter water so you can have all of the water. I would like as much firewood as possible.'
Utterance: 'me too. I don't care about water since we are camping near a river.'
[EX A]: Yes

[EX Q]: Context: 'hmmm, well what are you looking to get' 'Well, I think that for us staying warm is more important than having extra food. What if I took extra fire wood and you took extra food?' 'That could work, were not really looking to have a big fire'
Utterance: 'Where do you stand on water? We're low , and may need extra in case the fires go out of control'
[EX A]:
Yes