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: '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'
answer:
Yes


question:
Context: 'Looking forward to the trip.  They gave up the bare essentials but I could really use some extra supplies.🙂' 'I could too, I am a little short on a few things!'
Utterance: 'My biggest concern is water.  I could really use more.  That and some extra food.'
answer:
No


question:
Context: 'That sounds like fun. I checked my list and it looks like I am short on firewood however, would you happen to be able to spare some?' 'Yeah I could supply you extra firewood. I would like some extra food if you could spare that.' 'Yeah I could. How about I get 2 firewood, 1 food, and 2 water. And you can have the rest?'
Utterance: 'Yeah that sounds resonable. I hope you can have fun on your trip.🙂'
answer:

Yes