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: 'I'm going to need quite a bit more water, at least 2 packages.  I would like at least 1 food. What do you think?' 'How about you take two water and 1 food and 2 firewood?' 'That's kind of what I was thinking.  That would work for me.'
Utterance: 'OK, great, I forgot my fishing pole so the extra food will really help!'

Yes