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: '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.' 'Okay. I'm not especially worried about food. What's your lowest priority?'
Utterance: 'I have enough food too. Can I take 2 water, 1 firewood and 2 food?'
[A]: Yes


[Q]: Context: 'Hi. Water is very important to me. '
Utterance: 'Hello, I don't really need water'
[A]: Yes


[Q]: Context: 'I have more water than I need. How is your water supply?' 'I could use some more water as I get dehydrated easily. Since you have enough, I could give you and extra package of food for your water.' 'That sounds like a deal, what would you like to do as far as the firewood goes?'
Utterance: 'I really need to keep warm with my not so good sleeping bag.☹️ I would be willing to do this. I get two packages of firewood and three packages of water and I will give you two packages of food and one package of firewood. You have plenty of water so you will not miss that.. '
[A]:
No