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.

Ex Input:
Context: 
Utterance: 'I need the firewood and the food, you can have all the water.'

Ex Output:
No


Ex Input:
Context: 'Hi! Are you excited?' 'Yes, I am but I do have my worries. How about you? ' 'Me too! im bringing my 5 month old baby with me and im worried im not gonna be able to find purified water for his formula!'
Utterance: 'Ah, Baby's first camping trip. 🙂 But that is a bit of a big worry. '

Ex Output:
No


Ex Input:
Context: 'True. 🙂' 'Seems like we'll be struggling to see who gets the firewood most of all haha' 'No, I like a little firewood.'
Utterance: 'Same here. I need it to cook my vittles 🙂'

Ex Output:

No