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 Input:
Context: 'How about this it think it will work out better for us and you snice you need fire wood too. You get 3 food and 2 firewood and and I get 3 water and 1 firewood. 🙂🙂' 'I really don't want to be without water, how about 2 water and 2 firewood for the 3 packages of food?' 'I just want to make sure I understand you I get 2 waters and 2 firewood and 0 food. '
Utterance: 'That's right. Since you would be getting food from your sister, while I am camping alone, you would be getting more food pretty soon. '

Ex Output:
No

Ex Input:
Context: 'It's been so cold these last few days, I'm worried that I didn't bring enough wood for the next few nights.' 'That is unfortunate. How about I give you are my firewood for all your food?'
Utterance: 'That is a very generous offer but I think I need to keep some food to be safe. Do you need any water?'

Ex Output:
Yes

Ex Input:
Context: 'I am so excited to go camping! I am planning a nice long walk in the woods to decompress from the hectic days of working.' 'I am too. I've been thinking of this since COVID. I hear we have some materials to share between the two of us. What are you thinking? For me, I am from the South so I get cold easily 🙂 so firewood is my main priority.'
Utterance: 'Perfect! I'm a northerner, so the firewood is all yours! I'll need lot's of water to keep hydrated after the hike, and I'll probably be pretty hungry too.'

Ex Output:
No