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 Q]: Context: 'bro u also not offer a good deal' 'one food, three wood.' 'bro it is not a fair deal give me 2 food, one firewood 2 water'
Utterance: 'if you think I am not being fair can I have what you are asking for?'
[EX A]: Yes

[EX Q]: Context: 'Hello, how are you? 🙂' 'I'm good, how are you doing today?'
Utterance: 'I'm doing great!  I'm on the first camping trip with my five children.'
[EX A]: No

[EX Q]: Context: 'I'm good. How about letting me get the 2 packages of firewood and 2 waters.' 'I kinda need some firewood too. I'm totally good with the water, tho. How about I give you 1 firewoods, and give you three waters?' 'That sounds good but I need two foods please.'
Utterance: 'Hmm. :( How about I get 2 food and you get 1? That way it'll be slightly more equal'
[EX A]:
Yes