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: 'Sorry, that won't work for me. I've already said that I have a medical condition that requires additional water. You do not need that much water just to be hydrated -- you already have basic water. I can give you all of the firewood, but I need all of the water. ' 'In that case I exchange all the water only for all your firewood' 'I can give you all the firewood - but as a diabetic, I still need at least one extra package of food for my blood sugar levels. So, as my final offer I can give you all of the firewood, and two extra packages of food. Do you agree to these terms?'
Utterance: 'No, I give out only one extra package of food'
answer:
Yes


question:
Context: '☹️ I forgot most the food I was going to bring and only have enough for less than half the planned trip.' 'I understand. I guess we are in the same predicament. I have two kids with me though and they are hungry too. How long are you camping for? We are here a week.' 'I let my two girls bring their friend. Its their first overnight trip for more than a night. We also had a week planned.'
Utterance: 'My kids really eat a lot. But then yours probably to as well!'
answer:
No


question:
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?'
answer:

No