TASK DEFINITION: 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.
PROBLEM: Context: 'I was hoping for a decent amount of food, just in case my new recipes don't work out, lol. 🙂' 'Haha, makes sense. I'm also interested in food. What if I take 2 waters and 1 food, and you take 1 water and 2 food?' 'I would be okay with that if I could also have all of the firewood. It seems fair since you will be getting the most water. Would that work for you?'
Utterance: 'That seems like a lot to compensate for just 1 water. How about I also get 1 firewood?'

SOLUTION: Yes

PROBLEM: Context: 'I also need water.  You would not believe how much my family and I sweat!' 'I understand. I am unfortunately sick and need the warmth of the fire and water to take my medication or I will die very soon' 'You can have all of the firewood, we just need 1 water '
Utterance: 'That is fair. Could I also have 1 food so I do not starve'

SOLUTION: Yes

PROBLEM: Context: 'Hello, can we make a deal?'
Utterance: 'Of course! Are you going camping too?'

SOLUTION:
No