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.
Input: Context: 'How about I take all the water and firewood, you can have all the food.' 'I need water and firewood. I don't need as much food. I need water for my dog and firewood for warmth since I am camping during the winter'
Utterance: 'I need water because I'm going hiking, and the water from streams isn't safe to drink.'

Yes