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: 'Oh cool. What supplies do you prefer to take the most of?' 'I do a lot of hiking mostly, love to take scenic photos. I usually carry food and water supplies?' 'Me too. I am not good at hunting or fishing. So I generally try to take extra food'
Utterance: 'Haha I suck at those activities as well. I don't usually don't eat a lot, so I'm happy to exchange some food supplies for water supplies. '
[A]: Yes


[Q]: Context: 'yeah. going good.' 'good to hear' 'How about the deal? '
Utterance: 'Sure. My kids are really looking forward to this camping trip but one has special needs and he has to have a specific diet. I am fairly flexible on the water and firewood but food is a must have for me.'
[A]: Yes


[Q]: Context: 'what is the next thing you need the most/?' 'firewood to keep the body warm ' 'so water, firewood and food for you, and water food and firewood for me. what do you suggest'
Utterance: 'I'm not much of a food fan knowing that without firewood you die of hypothermia if wet, one can survive without food/ with little food for months'
[A]:
Yes