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.

Q: Context: 'But you get everything you wanted. You said you needed 3 water, I offered it to you.' 'but i can't give you 3 food and 3 firewood, thats 6 items vs the 3 water' 'Sure you can.  If you really want water the most, why would you care about the rest as much?😮'
Utterance: 'most does not mean i have to neglect the rest, anyways either a) I get 3 water, 2 food and 0 firewood or b) I get 1 water, 2 food and 2 firewood'

A: Yes
****
Q: Context: 'Hello 🙂 Hope you have a good amount of supplies for your trip!' 'Not really! I will need you to give me 3 food, 2 water and 2 firewood.'
Utterance: 'Yea, that's not going to work for me. That would leave me with NO food, and only 1 water, and 1 firewood. Would you take that deal, if I offered it back to you?'

A: Yes
****
Q: Context: 'Hello there?'
Utterance: 'Hi! How are you?'

A:
No
****