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: 'Hello there...! Are you excited for the camp' 'Hey, I am really excited! 🙂'
Utterance: 'Wow.. Cool '

Ex Output:
No


Ex Input:
Context: 'I need more food since I have a huge family. Can you give me all food i give you all water?' 'i need a little more food because i forgot that we where staying longer and i forgot some of my food. Can i give you 1 food package please? '
Utterance: 'Food is what I need most. I can not survive with less than 2 food'

Ex Output:
Yes


Ex Input:
Context: 'In a perfect world, all the water 🙂' 'that won't be fair, how about I get 1 water, 3 food and 1 firewood, that way u get the most water' 'Interesting.  If I decided to forgo water completely, would you accept giving me everything else?'
Utterance: 'no, at the most i can do is i get 2 water, 2 food and 0 firewood or I get 1 water, 3 food and 1 firewood'

Ex Output:

Yes