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: 'Since I'm most interested in firewood, I would want 3 waters if you're going to get more firewood.' 'Nice. That's okay with me. You get 3 waters and a I get 3 firewood' 'I was actually saying you get 2 firewood and I get 3 waters. Then you could have 2 food and I get 1 food.'
Utterance: 'That's seems fair to me since we all need food to eat'
[EX A]: No

[EX Q]: Context: 'Food is what I need most. I can not survive with less than 2 food' 'i also need more food okay what if you give you 2 foods if you give me 2 firewoods?' 'that will be okay. then I take 2 water you take 1'
Utterance: 'i really need more food. are you sure that we cant do i get 2 foods and i can give you 2 firewoods and 2 water? what do you think?'
[EX A]: No

[EX Q]: Context: 'Hello, what do you need the most for your camping trip?'
Utterance: 'ideally some firewood, it got soaked due to me being caught in the rain. what do you need the most?'
[EX A]:
No