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 Input:
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'

Ex Output:
Yes


Ex Input:
Context: 'Thats a shame, i am sure you would like it if you give it a try, especially if you build a large fire 🙂' 'I was going to say, the fire would be probably one of the few things I would be interested in! I love being warm.' 'Well you can take all the firewood if it will help, would it be ok if i get all the food in return?'
Utterance: 'That works for me. How would you like to divide the water?'

Ex Output:
No


Ex Input:
Context: 'I agree.' 'I myself love food, so food is a big deal to me. ' 'Ok.  I like water over firewood.'
Utterance: 'Yeah, firewood isn't really something that's "essential" I'd have to say. Yeah, you need it, but still.'

Ex Output:

Yes