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 self-need strategy, otherwise output No. self-need is a selfish negotiation strategy. It is used to create a personal need for an item in the negotiation, such as by pointing out that the participant sweats a lot to show preference towards water packages.

[EX Q]: Context: 'Aww I'm sorry to hear that, it sounds like it might be better to have her bring her own food. I'll be bringing my teenage son so it would be awesome to get any extra food for him that I can. You know how they be! 🙂' 'What about I take 2 of the packages and you take 1? I know teenagers also drink a lot of water haha 🙂' 'He definitely does drink a lot of water, but he's in a growth spurt so 2 would be ideal. I'm happy to give up all firewood in exchange for the extra food!'
Utterance: 'okay that sounds like a better deal then! I will take all the firewood and 1 food, and you can take the 2 food packages'
[EX A]: No

[EX Q]: Context: 'I figure I could always get some at the stream 🙂' 'Yes, I agree, but are you aware of the water quality at your campsite? ' 'Not completely aware but I do have a filter that I brought from home. What are your needs?'
Utterance: 'Ok me too! I am concerned the most with firewood as it is the basis for my camping activities: campfire, story telling, and producing heat. '
[EX A]: Yes

[EX Q]: Context: 'We cannot budge at all on food. But are more then happy to give up all the extra fire wood for all the food. ' 'Could you trade one food item for either one firewood or water?' 'How about this- You will get 1 food, 1 water and 3 Firewood. I will get 2 Food and 2 Water with 0 Firewood. '
Utterance: 'Hmm, I think I would prefer your original offer instead.  You can have all the food if I can have all the rest.'
[EX A]:
No