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.

Context: 'What are your preferences?  I always love having a big fire at night when I am camping and I do think water is more important than food.'
Utterance: 'I like to have a lot of food to keep my energy up, but I might need some firewood to cook that food. I can't wait for my camping trip.🙂'
No

Context: 'Yes pretty much that sounds like we can work something out' 'Would you be willing to let me have all the firewood and you could take 2 of the food and 2 of the water?' 'No I can't do that unfortunately./'
Utterance: 'Ok, so I could take 2 firewood, 1 food, and 1 water, the original deal, do you still want to do that one?'
No

Context: 'Hi. I'm most interested in water. What's your highest priority?' 'I really need water too. I have a young baby and will do a lot of washing.'
Utterance: 'Okay. I'm not especially worried about food. What's your lowest priority?'

Yes