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: 
Utterance: 'hello'
[A]: No


[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?'
[A]: Yes


[Q]: Context: 'I am actually very much in need of water. I fell while I was hiking during this trip. I have a really bad wound I need to clean on my leg. ' 'yikes that stinks. i got some extra people with me and we dont hve enough either. could i take 2 since we will be drinking it and maybe you can have 1 to get that wound cleaned up' 'There is a lot of blood on my wound and if I don't get it cleaned I am afraid I would have to have it amputated. It's likely I'll be stationary a long time. Maybe I can give you 2 water in exchange for 2 foods since I'll be stuck up here for a long time? '
Utterance: 'oh no!!!!! sounds like you shouldnt be camping at all. thats insane that happened. youre definitely in my thoughts. uhm i guess i have no choice since your situation is dire. so to be clear youre saying i can have two water and you can have two wood? if so thats ok with me'
[A]:
No