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: 'Well how about I get two firewood and you can have all the water.' 'hummmm...let me have two food and and 3 water in exchange of 2 firewood' 'Okay I will go for that and hope this satisfies you.'
Utterance: 'yeah'
[A]: No


[Q]: Context: 'Ok.  I am worried about animals and bugs so I would prefer 2 firewood.  But I am happy with the 3 food🙂' 'Ok, how about we shift a bit as I hear you on the bugs and animals.  I think I can get by with one firewood and use extra covers and meds.  But, will need plenty of water and some food.  How about I take 1 firewood, 2 water and 2 food.' 'Ok, although I was thinking that I could probably find some firewood, but would prefer more water so I don't get dehydrated and can use it to wash and cook.  How about I take 1 firewood, 2 water, and 1 food'
Utterance: 'Good thought on finding your own firewood.  I appreciate the offer of 2 firewood.  I can cut back on water for washing/cooking.  So how about I take 2 firewood, 1 water and 2 food'
[A]: Yes


[Q]: 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.'
[A]:
No