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.

[Q]: Context: 'Alright. I have a  feeling we will have a deal then. How about you give me two water for a firewood?' 'that sounds like a plan' 'how many firewood you need? Maybe we could also exchange one food for one more firewood?'
Utterance: 'I would appreciate that, I was thinking of asking that! I would not require much in the way of extra food or water but the fire wood would be important!'
[A]: Yes


[Q]: Context: 'Hi! How is your camping trip going?' 'It's going good we could use some more supplies such as food and firewood, though.' 'Same here haha. Is water your lowest priority item too?'
Utterance: 'Yes. We think we have enough water for now.'
[A]: Yes


[Q]: Context: 'No i absolutely need 2 food packages and 1 water. How about we do it like this... You take 1 food package, 2 waters and 2 firewoods. Does that work for you?' 'Sorry to bother you, I don't need anything other than food package. So better you could give me 2 food package and take 3 water and fire wood. Please consider this deal.' 'No i absolutely need 2 food packages. So if you cannot agree to take 1 food 2 water and 2 firewood i will walk away.  If you have children with you would would also need water which you are not asking for. '
Utterance: 'Yes I too have children so only I am considering 2 food package, 1 water is enough for me and I dont need any firewood. So please accept this deal'
[A]:
Yes