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: 'Are you sure friend. ?' 'yeah sure friend I understand your situation🙂' 'wow. thank you so much friend. so kind of you Thanks for the help. '
Utterance: 'sorry friend wrongly press the reject button. Have a nice day friend.'

Ex Output:
No


Ex Input:
Context: 'I was hoping for a decent amount of food, just in case my new recipes don't work out, lol. 🙂' 'Haha, makes sense. I'm also interested in food. What if I take 2 waters and 1 food, and you take 1 water and 2 food?' 'I would be okay with that if I could also have all of the firewood. It seems fair since you will be getting the most water. Would that work for you?'
Utterance: 'That seems like a lot to compensate for just 1 water. How about I also get 1 firewood?'

Ex Output:
Yes


Ex Input:
Context: 'I think that would work for us!' 'I am willing to make that deal.' 'Perfect! Let's plan on this between the two of us. Thank you for working so well with me. You made good points and I appreciate finding a proper solution. 🙂'
Utterance: 'Your welcome.  Have fun at the Puget Sound!🙂🙂'

Ex Output:

No