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.
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Question: Context: 'Well there are only 3.' 'Of course. Since you're getting more water, I was hoping to get 2 firewood, and you could have the remaining 1. Would that work for you?' 'Water was my high priority and food was your's, so I think we already split the difference there. '
Utterance: 'Okay, so how do you propose splitting the firewood?'

Answer: Yes


Question: Context: 'Can I have 2 of firewood in that case, as I have food that needs to be cooked and would be a great help.' 'Can I have 2 firewood 2 food and 1 water I think this would be enough' 'I have a Family too, I can compromise on either only one of Firewood or Food, please give a thought.'
Utterance: 'This is way too unfair, my friend'

Answer: Yes


Question: Context: 'I should be fine, thank you. 🙂 It will be a little bit of work hauling all of my gear and supplies but after I set up camp, it will be smooth sailing. ' 'I'm thinking that we will be able to work out that deal.  I do have the water and that's my main thing I needed.' 'That's great, I'm glad we came to an agreement. '
Utterance: 'Everything looks good.  I'm glad we both got what we wanted.'

Answer:
No