instruction:
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.
question:
Context: 
Utterance: 'Hello. I'm looking forward to striking a deal with you that makes both of us happy!'
answer:
Yes


question:
Context: '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?😮' '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'
Utterance: 'That is simply unacceptable.'
answer:
Yes


question:
Context: 'I am! It is the perfect way to get away and still manage to social distance! I am worried about having enough water though, are you short on any supplies?' 'I think I'm good. I'm not 100% sure. My husband likes to do adventures on the fly. He got these water filter straw thingies from Amazon and said that if we run out of the water I packed, that we can drink the water in the lake but I don't really trust the straws.' 'Sounds like you need water too. How about you take 2 water, 1 food, and 1 firewood?'
Utterance: 'I don't know, you said you're worried about having enough water too. I'm excited to make campfires though! My kid hasn't had a campfire smore yet so I'm super excited to see his face of joy when he experiences it.'
answer:

No