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: '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.'
[A]: Yes


[Q]: Context: 'Actually, I'd like to keep some water as well in case it gets so cold that the lakes and other water sources freeze.' 'Well, I need as much food as possible. You seem to want firewood. How about you suggest something.' 'That's a good idea.Let me think. How about 3 Firewood, 1 Food and 2 waters for me.'
Utterance: 'That will not work for me at all. '
[A]: No


[Q]: Context: 'Since I have never been camping before, why do you think you need 2 firewood?' 'Unfortunately, I have arthritis so being sure to keep warm and the dampness away in the evening, heat is important for me.' 'Ok.  I am worried about animals and bugs so I would prefer 2 firewood.  But I am happy with the 3 food🙂'
Utterance: 'Ok, how about we shift a bit as I hear you on the bugs and animals.  I think I can get by with one firewood and use extra covers and meds.  But, will need plenty of water and some food.  How about I take 1 firewood, 2 water and 2 food.'
[A]:
Yes