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 there. How's it going?' 'I am doing good, how are you doing?'
Utterance: 'Doing well. My kids are looking forward to this camping trip. They've never done it before so they're looking forward to the experience!'

Answer: No


Question: Context: 'so water, firewood and food for you, and water food and firewood for me. what do you suggest' 'I'm not much of a food fan knowing that without firewood you die of hypothermia if wet, one can survive without food/ with little food for months' 'so let's do this quick, how about 2 water for you, 1 water for me, 0 food for you, 3 food for me'
Utterance: 'good excellent choice'

Answer: No


Question: Context: 'That would be great. I need to have frequent small meals throughout the day so the extra food would help. I have plenty of water. ' 'alright, so I'll keep the water, and firewood, and give you 2 extra food.  Does that sound like a good deal?' 'I actually need one firewood and one food package. I can give you one water. '
Utterance: 'That sounds great.  Thank you'

Answer:
No