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: 'Hi! How about I receive 3 food, 2 firewood, and 1 water?'
Utterance: 'I can't do that. It would leave me with no food at all. How about I take 2 food, and 1 firewood, and 1 water?'

Answer: Yes


Question: Context: 'So, let me know how much exactly do you want of each item' 'I would like 2 packages of food and 2 packages of water.' 'In that case, I can take 2 packages of firewood. So , it would be a fair deal. I can share with you in case you have the need.'
Utterance: 'Okay, that is a fair deal then. It is settled.'

Answer: Yes


Question: Context: 'C-ya, thanks anyways' 'I am glad you accepted. I really need it.' 'I will take all the food and water then'
Utterance: 'That will be very unfair of you. How am i going to survive without water or food?'

Answer:
Yes