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.

Context: 'Hi, I will need alot of water as I need it to stay alive.'
Utterance: 'I agree, with camping i feel there are many uncertainties. Finding clean water would be too difficult, best to take as much water as possible. '
No

Context: 'Oh well that is something to consider. I love dogs. 🙂. I'd be willing to take less in that case, and let you have 2 of the waters. Would you be OK with leaving me with 1? I'd be willing to split the food up the same way (you get 2, I get 1).' 'That works. I know water is important. I promise I won't be using it to water plants or wash clothes!' '🙂 haha of course! I think we've come to a good agreement then! You get the 2 Waters, and I get Water. You get 2 Foods, and I get 1 Food. And I get the 3 Firewoods. Correct?'
Utterance: 'That is perfect for me and my dog!  Yes!'
No

Context: 'Hello. 🙂 What item did you need a little extra of?' 'Thank you for asking, I would really like some extra fire wood as I usually get cold and scared at night so I can keep a fire going.' 'I'd be willing to give you all my firewood if you could give me all the water.'
Utterance: 'I do need at least one extra water bottle in case the fire goes out of control, but I am willing to forgo any food as I can forage for food.'

Yes