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.

Context: 'I need at least one firewood to cook my food.  Can you give me one firewood for all the water?' 'I'm sorry. I won't be able to do that.' 'SO you will give me 3 food, no firewood and 2 water?'
Utterance: 'Because I get cold easily and need water for cleaning, my final offer is 3 food/1 water for you and 3 firewood/2 water for me. Because I'm not getting any food, anything less, I cannot do.'
Yes