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.
Q: Context: 'I need all thefirewood and food, you can have all the water.' 'Sorry, that can't work for me. Is there a reason you need all the firewood and food?'
Utterance: 'I have health issues, and I need to keep warm at night.  And I don't know how much fish I can catch.'
A: 
Yes