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: 'I really don't want to be without water, how about 2 water and 2 firewood for the 3 packages of food?' 'I just want to make sure I understand you I get 2 waters and 2 firewood and 0 food. ' 'That's right. Since you would be getting food from your sister, while I am camping alone, you would be getting more food pretty soon. '
Utterance: 'umm. I think the best and fair deal is a complete swap of water for food and you get 2 fire wood. '
[EX A]: No

[EX Q]: Context: 'I did, but my friend only feels comfortable with extra around, God forbid, if something happens this could save his life. So I'm thinking, I take all three food packages, two firewood packages and leave all three water and one firewood for you. ' 'I think that it is fair that you get three food and I get three water, but why should you get two firewood to my one?' 'The food is not for me, I'm not allowed to touch it. t\The only real benefit I'm getting here is firewood. ☹️'
Utterance: 'OK,that sounds good. So you get three Food, I get three Water, and we split the Firewood, you get two and I get one.'
[EX A]: No

[EX Q]: Context: 'I will need 2 firewood, 2 water and 1 food'
Utterance: 'How about you take all the firewood because I have the skills necessary to chop down more. I also will need three packages of food because I will be climbing a very tall mountain.'
[EX A]:
Yes