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: '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. '
[EX A]: No

[EX Q]: Context: 'Yeah. Nice to get out after being inside for most of the spring. This covid-19 crap! wish it would go away.' 'I agree! I will say it has really sparked my interest in camping and being outdoors even more though! I saw just how connected I was to technology and everything else!' 'I'm up here to do some cross training and noticed that there is some extra water around. Even though the nights are cold I could use some extra water. Do you exercise much?'
Utterance: 'It has been extremely dry in the area I will be going to so I was hoping to get a little extra water too. I do. I love hiking and running trails! Due to the extreme dry weather I should have plenty of wood I can scavenge for if you need all of it!'
[EX A]: Yes

[EX Q]: Context: 'I have to get food as high while water is low.'
Utterance: 'Ok, I have enough food, but I need firewood to keep warm and water because one of my containers leaked. So, why don't you take all the food and I get everything else.'
[EX A]:
Yes