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! How is your camping trip going?' 'It's going good we could use some more supplies such as food and firewood, though.'
Utterance: 'Same here haha. Is water your lowest priority item too?'
[EX A]: No

[EX Q]: Context: 'hello!' 'Hi how are you today? '
Utterance: 'am fine and you?'
[EX A]: No

[EX Q]: Context: 'Ok, let me then give you 2 packages of firewood and 2 packages of water and you give me 2 packages of food. What about that?' 'So I get 1 food, 2 water and 2 firewood?' 'What is your take?'
Utterance: 'And you will get 2 food, 1 water and 1 firewood? I think it is a great deal since food is hard to find in the camp site. I don't think you want to go hunting🙂'
[EX A]:
Yes