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: 'So, it looks like we have reached a compromise. ' 'Yes we have. Just to clarify, I will get two packages of water and you will get one. I will also get two packages of firewood and you will get 1. And then I will get 1 package of firewood and you will get 2,' 'I will get two packages of food and you will receive one. I will get one jug of water and you will receive two. I will get one bundle of firewood and you will receive two.'
Utterance: 'Perfect. It has been a pleasure negotiating!'

Answer: No

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: 'hi! thats awesome i am going camping too, but not a lot of hiking. I am bringing 2 teenage boys so food will be very important for us' 'I definitely understand that, kids can eat a lot. I can spare 2 extra food for all the water. ' 'that will work for me - how about i take 2 food, and all the firewood - i am hoping to teach my boys campfire songs - they need other hobbies that dont include electronics :). You can have 1 food and all the water? '
Utterance: 'I would like just 1 firewood so we can have a smores night with the younger kids if that works?'

Answer:
No