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: 'yes, how do you suggest we share these resources?' 'Tell me, how stocked up are you on food and firewood?' 'I have firewood, what I need mainly is water, then food'
Utterance: 'Ah, I see. I have plenty of firewood as well but mostly need food and some water.'
[A]: Yes


[Q]: Context: 'We are going to be in an area where there is little potable water.  I don't have a water filter either.  The extra water will be very important for our group.  ' 'I understand. We will have a big group (about 10 people) so we are trying to have as much water as possible as well. If anyone gets dehydrated it'd be the end of the trip and hard to get everyone back to base. What's the fewest amount of bottles you're willing to accept?' '😮Two packages is the lowest I would accept.  There is one exception to that.  If you were willing to give up 2 firewood, then I would be willing to take 1 water.  I think I could trade some extra firewood for water at the campsite.'
Utterance: 'I understand. I am not willing to give up any firewood, but I'd be willing to do a trade of 1 food for 1 water. So 3 firewood for us, 1 water for us, and 1 food for us.  '
[A]: No


[Q]: Context: 'Yes! I am so on the same page as you. I want to be sure I'm set and prepared. 🙂' 'Would you consider letting me have 2 of the 3 extra firewood?  I have health issues and I get really cold sometimes.☹️' 'Yes, I think that would be very fair, since I don't have health issues myself. Would you allow me to have 2 of the 3 food items? I need energy for hiking. 🙂'
Utterance: 'That would be perfect.  I am a gourmet cook and if you would like me to help you prepare the evening meal, I would be very happy too.🙂'
[A]:
Yes


