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: 'I need extra food. I have recently  been ill and my doctor has prescribed extra calories so I can regain my strength.' 'I’m sorry to hear that! If there are 3 packages of food please take 2 of them. I could stand to eat less!' 'Thank you. That deal is perfect!🙂'
Utterance: 'Sounds good to me. Let me see how to execute this trade!'

Ex Output:
No


Ex Input:
Context: 'I can't take cold and would badly need to have more firewood.' 'I need more firewood to keep my food going.' 'I get it, in that case I'' take additional packages of food.'
Utterance: 'I don't think so, because I need additional packages of food in case there is an emergency.'

Ex Output:
Yes


Ex Input:
Context: 'Food is the most important to me because I need to eat more often so that I can take my medications.  ' 'Yeah, that is important. I do not have a problem letting you have more food than me.' 'Would it be possible to get an extra water also?  How do you feel about the firewood?  I wish we could split everything evenly.🙂'
Utterance: 'Me too. Firewood is the most important thing to me. We will be somewhere cold and we could use the extra warmth.'

Ex Output:

Yes