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.
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Question: Context: 'I am a big guy, so I will need some more food, how about you give me an extra food while you hold on to two' 'I can't give you all the water if you take one of the food, I'm very sorry.  I could take 2 of the food and 2 of the water if we do it that way.  I really need cooking supplies if I want this trip to be productive for me - it's why I was coming.' 'That wouldn't work for me, I will be going hiking during camping, so I need all of the water I can get'
Utterance: 'Well then maybe we can just do a trade, the water to you and the food to me.  And if I got two of the firewood, I'd have plenty of time to just boil and purify some riverwater instead'

Answer: Yes


Question: Context: 'Good evening, how are you doing today?'
Utterance: 'Welcome to the camping trip Dude!'

Answer: No


Question: Context: 'My kids really eat a lot. But then yours probably to as well!' 'Can we agree on 2 food for me and 1 water and firewood' 'How about if I give you 2 water and I take the 2 food?'
Utterance: 'I don't need water I have plenty of water. You said you needed wood to boil the waters. So I offered more wood.'

Answer:
Yes