TASK DEFINITION: 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.
PROBLEM: Context: 'Hi there. How's it going?' 'I am doing good, how are you doing?'
Utterance: 'Doing well. My kids are looking forward to this camping trip. They've never done it before so they're looking forward to the experience!'

SOLUTION: No

PROBLEM: Context: 'Interesting. Looks like we are in the same situation! 😮' 'I'd be willing to give you extra food if I could then get extra water and firewood. How about you Get 2 food, 1 water and 1 firewood?' 'That sounds almost fair. But I could possibly use 1 more firewood. What do you think?🙂🙂'
Utterance: 'Idk, you're already getting the extra food which would be important to me. I think my offer is very fair for both of us.'

SOLUTION: Yes

PROBLEM: Context: 'okay how i take all 3 food and 1 firewood?' 'The firewood sounds like a solid deal; I would need a little food though to assist me. The good news is since there's a stream near me, I won't need any additional water, so I am happy to provide you with all of the additional water.' 'i am not able to do that unfortunately i desperately need firewood. '
Utterance: 'Perhaps I wasn't clear, so if I take 2 firewood, you take 1; I would just need some help with some of the food. Is that reasonable?'

SOLUTION:
Yes