instruction:
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.
question:
Context: 'Who is willing to cooperate in a consensual offer so that we can all get fruitful dividends😡' '😮 What is your offer then? ' '2 of water, plus 2 of food and 0 of firewood'
Utterance: 'That doesn't seem totally fair. How about I take 2 water instead? '
answer:
Yes


question:
Context: 'We can try to figure out a way to split the water and food in the fairest way 🙂. Firewood isn't an issue so it doesn't matter as much. I think to start something like splitting the food 2/1 and the water 1/2?' 'That might work. I can always boil it and I could use the extra food for the kids.' 'Ok so I propose 2 water for me, 1 for you. 2 food for you, 1 for me. Firewood would be, 2 for you, 1 for me? Please give me your opinion if you want to reverse any of that.'
Utterance: 'That would work, the extra firewood would offset the need to have water on hand when I can boil it.'
answer:
No


question:
Context: 'how about I give you 2 waters and 1 food package in exchange for all your firewood?' 'I'm afraid that will not work for me. I have hypothyroidism, so I am intolerant to cold temperatures. I was also planning on taking a swim in the river. I would prefer to take two firewood & one food package, & you may have the three waters, two food packages, & one firewood.'
Utterance: 'I'm afraid I also have need of the firewood. I have anaemia so i get cold easily so I need to make sure I have adequate firewood or i may freeze at night. I also have a thin clothing so they wont provide adequate warmth. How about all of my water and 2 food for all of the firewood?'
answer:

No