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: 'I'm well! Excited for this camping trip.' 'Same! I'm a little worried about some of my supplies though. What about you?' 'Likewise! What are you most in need of?'
Utterance: 'Well, I'm camping up on a snowy mountain and I gave some of my food away to hikers who were passing me and were very tired and hungry, so I'd really like to get some more food. Firewood would be useful too, although I do have a thick coat and a sleeping bag. I plan on melting the snow to get water, so I don't think I'll need that too much. And you?'
[EX A]: Yes

[EX Q]: Context: 'Oh I understand that for sure. I am not used to the cold weather either which is not helping. Would you be interested in a trade for water in exchange for firewood? ' 'Well, I am worried about staying hydrated as well.' 'Do you have food? I have been trying to hunt but have not really found any animals nearby to hunt.'
Utterance: 'I do actually! I can give you 3 foods. Would that work?'
[EX A]: Yes

[EX Q]: Context: 'i love to eat' 'Oh yeah, I make a mean smore, myself. My favorite part of the experience is the long walks through nature. It's an experience for which I need to ensure I Have adequate hydration. ' 'i need food and water to survive, can I have 3 food, 2 water and 0 firewood?'
Utterance: 'No, I definitely need more water than that for my hikes, '
[EX A]:
No