TASK DEFINITION: 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.
PROBLEM: Context: 'Okay! Sounds fair! Where are you heading out to camp?' 'At a campground near where I live that is on a lake (although they call it a creek!).' 'That is convenient that it is so close 🙂'
Utterance: 'Yes-hope to have a good time. It has been fun dealing with you-hope you have a good camping trip as well.'

SOLUTION: No

PROBLEM: Context: 'Hello! We're going camping and need some additional supplies. The primary need right now is firewood! We can spare water, but some additional food for the six kids is needed!' 'Wow. You took six kids on this trip? I would say you will definitely need food!' 'Yup! But we did think ahead and ordered extra rations for them. Food is second priority, so maybe we could have 2 of those? You could have all of the water rations.'
Utterance: 'I definitely need water but I didn’t bring enough shelter. Thus, I will need to keep my fire going. '

SOLUTION: Yes

PROBLEM: Context: 'Hello, that sounds good. How are you today?' 'I am doing okay but am in need of some supplies. What about you?' 'Same here. My kids are really looking forward to this. What is most important to you?'
Utterance: 'Firewood! I need it to cook my food and also to stay warm. What about you?'

SOLUTION:
Yes