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.

Ex Input:
Context: 'Hi! Are you excited to go camping?'
Utterance: 'absolutely! the kids are absolutely looking forward to it. It's their first time'

Ex Output:
No


Ex Input:
Context: 'Well that's interesting because I don't even know what is is.' 'We aren't allowed to submit it just yet. So let's chat. What do you value most among the items?' 'Please don't try to order me around. 😡 I require a majority of water.'
Utterance: 'Let's be reasonable here. If you are nice to me I'll be nice to you. I'll take the majority of the wood and food if you want most water.'

Ex Output:
Yes


Ex Input:
Context: 'That wouldn't work for me, I will be going hiking during camping, so I need all of the water I can get' 'Well then maybe we can just do a trade, the water to you and the food to me.  And if I got two of the firewood, I'd have plenty of time to just boil and purify some riverwater instead' 'That does not seem entirely fare but I need more water so I will take this deal'
Utterance: 'It's honestly not that fair to me either, but sometimes we just end up with slightly conflicting priorities in life.  🙂  I think making the best of the situation is the way forward.'

Ex Output:

Yes