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.
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Question: 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. '

Answer: Yes


Question: Context: 'That would be great if you could! ' 'I can do that! What's your next highest priority? I would prefer 2 firewood as I need to be warm at all times and plan to camp in the cooler weather' 'I can easily give you two firewood! One should be more than enough for me. Especially since you helped me out with the food!'
Utterance: 'I would appreciate that! How do you feel about water?  I would like at least one water.'

Answer: No


Question: Context: 
Utterance: 'I am running low on firewood. I need more to keep the fire going and cook food. '

Answer:
Yes