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: 'Hello! Yes I'm excited for the trip. 🙂 My most important is food. How about you?' 'I am excited too. I really need food too. What other item is priority for you?' 'I also need water because we plan to do a lot of hiking. What about you?'
Utterance: 'Wow, I think we planned the same activities for our trip. I need water too 🙂'

No