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: 
Utterance: 'HI! Are you excited to go on this trip?'

A: No
****
Q: Context: 'Since you would also like firewood, I propose 2 firewood, 2 water to me, and you get 1 wood, 1 water, and all the food to make up for it.' 'Okay I can agree to that deal.🙂' 'That's fantastic, I'm glad we came to something we both agree with'
Utterance: 'Me too. I hope you have a wonderful camping trip.🙂'

A: No
****
Q: Context: 'Hello, I need supplies for the trip!🙂' 'Yep, me too🙂' 'I need 3 water, 2 firewood, and one food. It would be good if I got that!  🙂🙂🙂☹️☹️'
Utterance: 'Oh, that's not possible.  Sorry☹️'

A:
No
****