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: 'Would you be willing to take more firewood for less food?' 'Yes I think that sounds fair.' 'So if I take 2 foods and 1 firewood, you take 1 food and 2 firewood. What would be fair for water?'
Utterance: 'What if I take two waters and you take one water then?'
[A]: No


[Q]: Context: 'Hi how are you doing today?' 'I'm doing well. I'm very excited about our camping trip!' 'I am too! I have a rather large family and we are looking forward to getting out for some time away!'
Utterance: 'How nice. I am bringing my daughter and her girl scout troop. I am the co leader.'
[A]: No


[Q]: Context: 'okay friend you can have 3 firewood and 3 water is that good enough?' 'I am going to need some food of course. ' 'yes ofcourse i agree with you.my dear friend will you have 1 food 3 firewood and 3 water'
Utterance: 'I would prefer 2 food and less firewood. There is tons of firewood where I am but there is no lake so I can't fish. No berries around here either. It's pretty scarce'
[A]:
Yes