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.

Input: Consider Input: Context: 'Looks like we both really need the food.  If you get 2 food I would need 1 food, 2 water and 3 firewood. ' 'Since you will get all the fire would do you think I could have 2 foods and 2 waters. You would get 1 food, 1 water, and 3 firewood. 🙂 You seem like you are a great outdoor person that I would think you would be able to catch some fish to cook with the firewood. 🙂' 'No that does work well for me.  If I only have 1 food I need 2 waters and the firewood to make up for the loss of food.'
Utterance: 'What about I have all the food, and you can have everything else? I would think that seems pretty fair.'

Output: Yes


Input: Consider Input: Context: 'no i think i need 2 waters' 'That will be very difficult for me. I have a condition that requires water all the time.' 'Same thing here. Also i only need 1 food so can i get 2 waters'
Utterance: 'Let me see the best offer for us then. I hope you will be okay.'

Output: Yes


Input: Consider Input: Context: 'Hello! 🙂 Let's work together on a deal for these packages, shall we? What are you most interested in?' 'Hey! I'd like some more firewood to keep my doggo warm. What do you need?'
Utterance: 'I need firewood as well. We have a large group consisting of mostly senior citizens, including my grandma, so we'd like the firewood to keep everyone warm.'


Output: No