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: 'Hello, can we make a deal?'
Utterance: 'Of course! Are you going camping too?'
[EX A]: No

[EX Q]: Context: 'hello, I am good, I am very excited about this trip. how are you?' 'i am great, super excited about camping as well, are there any supplies that you really need?' 'i really need water and food. we did not get enough of those.'
Utterance: 'Those are my priorities as well, how about you get all the food and two firewoods, and i get all the water and one firewood, does that sound fair?'
[EX A]: Yes

[EX Q]: Context: 'Me too. We have a bigger family and we will run out of food if we don't get some more.' 'Since it looks like we have the same value ranking for our needs, how would you like to try to make the deal?' 'Well let's try to make this as fair as possible.🙂We could get 2 packages of food, leaving you with 2 extra packages of firewood as well as water.'
Utterance: 'Sounds great to me! So I will get 1 food, 2 firewood, and 2 water. That sounds very fair 🙂'
[EX A]:
Yes