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 vouch-fair strategy, otherwise output No. vouch-fair is a selfish negotiation strategy. It is used to call out fairness for personal benefit, either when acknowledging a fair deal or when the opponent offers a deal that benefits them. This can be through an explicit call out or can be implied.
Input: Context: 'all the firewood will not work for me.okay you can have 2 firewood while i get 1 firewood,3 waterand 3 food' 'Are you near the woods? ' 'NO.That is why i will be needing at least 2 firewood so i can keep warm'
Utterance: 'You offered me 2 before, although I need all 3. Plus, you get all the food and water.🙂'

Yes