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: 'i need two food items and one water' 'I will take 2 waters, however I would like 2 food and you can have 1 food and 3 firewoods' 'one food is not enough i am pregnant and i need to eat many meals'
Utterance: 'My friend is ill and needs to eat to survive. How about I take 3 water then and you can have 2 food and all of the wood?'
[EX A]: Yes

[EX Q]: Context: 'So 1 firewood, 0 food and 3 water for you?' 'No 3 packages of firewood, 1 package of water, and I can give you 3 packages of food. I need the Firewood the most.' 'Tell me why you need so much firewood?'
Utterance: 'I have other people coming with me and we don't have insulated sleeping bags. The temperature also drops drastically at night.'
[EX A]: Yes

[EX Q]: Context: 'ok, so I'd get 1 firewood, 2 water. Now for food, If we continue with an even split I'd much prefer getting 2 extra food. that would bring us up to a near even split overall ' 'Ok. I get it and that would be fair as I already have enough food.' 'ok thank you. I should be able to get by pretty well with this deal, extra food means I can bring more friends 🙂'
Utterance: 'I'm glad that you are happy with the deal as well.'
[EX A]:
No