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 Q]: Context: 'Hi there! How are you?' 'Hello good morning I'm well thank you.' 'Let's talk about what we need. First, I don't eat meat, so I really feel like I'd need a little extra food, as I couldn't hunt or forage for food at all. I feel like I could survive without a ton of water, but would need water, as I hike a lot and cant trust any sources'
Utterance: 'I've also planned my trip to include a lot of hiking and so I have a high priority for extra water, as like you've said you need to stay hydrated on your hike and you can't trust any source. How can we divide up the water as that seems to be the number one priority for us both.'
[EX A]: Yes

[EX Q]: Context: 'i am an avid water drinker. i can afford to give you 2 water for three firewood though' 'I have alot of children, and those little rascals can chug water like there is no tomorrow, will you allow me to get the 3 waters and you can have 2 firewood and and 3 foods, what do you think?' 'i need the firewood because i tend to catch a cold easily and also scared of the dark. i can give you 2 water and 2 food for 3 firewood and i food'
Utterance: 'will you allow me to get 3 waters and you can have the 3 firewood and 2 foods? 🙂'
[EX A]: No

[EX Q]: Context: 'Hello, How are you? My children love to eat and have fires daily. I hope this deal works for you.🙂' 'Hello, I'm fine. I understand your need. I have health issue I can't stand without food and water.I hope you will understand my situation.' 'I completely understand where you are coming from. How much food do you need?'
Utterance: 'I need at least 2 package of food and 3 package of water. Please do favor for me.'
[EX A]:
Yes