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.

Context: 'I get it as you need more firewood for the additional package of food.' 'exactly, and forgot some of my extra wood at the house again.' 'Have a nice camping trip 🙂'
Utterance: 'you as well'
No

Context: 'Why do you need so much firewood?🙂' 'My camping expedition is in the far reaches of the north, away from civilization. I've already lost three fingers to frostbite, and I can ill afford to lose another. In short, I need the firewood - for fire. And warmth.' 'Sorry to hear about your problems. Are you going to Canada this time?'
Utterance: 'Farther. I'm going so far north that we'll be passing over the north pole and keep going into Siberia.'
No

Context: 'Hi how is it going?' 'It took a while to load but good.' 'Let's talk about how we can split the camping supplies'
Utterance: 'Ok I think we should split evenly'

Yes

