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.

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. '

A: Yes
****
Q: Context: 'No me gusta mucho el trato, pero para eso debemos hablar y decidir como adultos un buen trato para los dos. Lo que queremos es disfrutar en el campamento.' 'I do not understand spanish. Please speak to me in English.' 'Sorry I'm practicing my Spanish for the camp. I do not like the deal very much, but for that we must talk and decide as adults a good deal for both of us. What we want is to enjoy in the camp.'
Utterance: 'By giving you all three food and 2 of the three firewood, you're definitely getting much more than I am.'

A: No
****
Q: Context: 'You can have all the water if we can have all the food?' 'I dont think I am okay with that ☹️. Food is essential to our groups morale when camping. We would like 1 additional food preferably.' 'Well you guys did say you did not care much about large fires. What if you gave all the firewood in replace for the water and you can still keep 1 food?'
Utterance: 'So I would get 3 water and 1 food and youd get 3 firewood and 2 food?'

A:
No
****