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: 'Hello.' 'Hello there, fellow camper!  🙂' 'I would like 3 packages of food, 2 packages of firewood, and 1 package of water.'
Utterance: 'That's not going to work for me at all, I would like 3 packages of water, 2 packages of food, and 1 package of firewood'
[A]: Yes


[Q]: Context: 'Is that what you want or what you are offering?' 'That's what I'm offering to you, but I think it's a fair deal, so I'd accept it myself, too.' 'Fair enough.'
Utterance: 'If that sounds good, just tell me which bundle you want.'
[A]: No


[Q]: Context: 'Hi, I would like to get 3 firewood, 2 waters and 1 food pack.' 'Hello, I am in need of more water than just one,could you possibly allow me to have two and the other items are fine' 'I have a bunch of kids and need extra water. I can give you 2 food packs instead.'
Utterance: 'Then i understand, i have kidney issues but i would rather go without then take away from a family'
[A]:
Yes