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: 'Oh, that won't really work for me.  I was hoping to get extra food and water for this trip since I need water to take medication and would love the food to plan a special meal.  I'd like say, 2 food, 3 water and 1 firewood' 'I could give you 2 food, if I could have 3 firewood and 2 water' 'Hmm, how about I take 2 food and 2 water and you can have all the firewood?'
Utterance: 'This is fair, but I do not have any use for much firewood. I could give you 2 firewood, 2 water and 1 food'
answer:
Yes


question:
Context: 'I would say between firewood and food, eating and comfort is important to me' 'I can understand that. I know I really need the food the most. I'm already worried I'm going to run out. I also have blood sugar problems, so I cannot run out ☹️' 'Thats fine. If you want you can have 2 foods and I get 2 of the fire wood. Sounds fair?'
Utterance: 'And I would take 3 water? '
answer:
No


question:
Context: 'Ok, what would you counter offer with?' 'I would like all 3 packages of firewood and 1 package of food. You can have the rest.' 'Well, I would like at least one firewood, it is the thing I most need.'
Utterance: 'But you need firewood for leisure, whereas I need firewood for survival.'
answer:

No