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 Input:
Context: 'hello there my fellow camping friend' 'Hi! I'm most interested in acquiring firewood, since I don't want my fire to burn out on the trip. What are you looking for?'
Utterance: 'I am also looking for firewood. Since I was a child i have always enjoyed camp fires. They mean a lot to me'

Ex Output:
Yes


Ex Input:
Context: 
Utterance: 'Hello. I really just need firewood for my wife and daughter and some extra water for myself.'

Ex Output:
Yes


Ex Input:
Context: 'I can. How about firewood? I would like 2 if possible.' 'Well there are only 3.' 'Of course. Since you're getting more water, I was hoping to get 2 firewood, and you could have the remaining 1. Would that work for you?'
Utterance: 'Water was my high priority and food was your's, so I think we already split the difference there. '

Ex Output:

No