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.

[Q]: Context: 
Utterance: 'I want to make sure I'm well prepared for camping. How would you feel if I took 2 water, 1 firewood, and 2 food?'
[A]: No


[Q]: Context: 'can't do that, I would need 2 water, 2 food don't need firewood.' 'No one wants firewood!  Guess no s’mores!' 'It's bad for the environment'
Utterance: 'How about I take 1 water, 2 food and 3 firewood'
[A]: No


[Q]: Context: 'I'm doing well. I'm trying to prepare for this camping trip. ' 'Me too.🙂' 'What are you looking for?'
Utterance: 'Firewood. I need 3. What do you need?'
[A]:
No