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.

Q: Context: '😮 Food is #1 for me as well! What a pickle. My #2 is Firewood and my #3 is Water. We can split the Food and divided the Firewood and Food based on how important they are to us.' 'True we can , I'd be willing to just take one of the foods if you'd be willing to do that ? Then we can decide on the others ' '🙂v it sound's like we're on the right track! I'll gladly take 2 Food. How would you feel about taking all of the Water, while I take all of the Firewood?'
Utterance: 'Not really liking that , but I'd be willing to split the water with you if I could take 2 of those 🙂'

A: Yes
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Q: Context: 'With little firewood, I need the food since I can't cook fish.  How about you get 2 firewood, one food, and 1 water?' 'how about i get 2food because it is very important to my health' 'Okay, how about you get 2 firewood, 2 food, and I get 1 firewood and 1 food and all the water?'
Utterance: '☹️ no i also need water,i get dehydrated easily'

A: Yes
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Q: Context: '2 water 1 firewood and 1 food' 'Can you explain yourself better? What you need the least is food?' 'i mean i will be needing 3 water 2 firewood and 1 food'
Utterance: 'I can't give you that since it wouldn't be fair to me, I'll give you a better offer. I get 3 food 1 water 0 firewood and you get 0 Food 2 water and 3 firewood and 2 fire'

A:
Yes
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