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: 'No, I don't have any plans for this weekend. Can we camp together?' 'If you want to tag along, sure.  lol  I'll be heading to the mountains so it's going to be hot during the day and cold during the night.' 'Great, hey, I'll make you an offer, I'll keep 3 firewood, 3 food and...'
Utterance: 'Would I be able to take 2 firewood and 3 waters and then you take the res?'

Ex Output:
No


Ex Input:
Context: 'I will take 2 waters, however I would like 2 food and you can have 1 food and 3 firewoods' 'one food is not enough i am pregnant and i need to eat many meals' 'My friend is ill and needs to eat to survive. How about I take 3 water then and you can have 2 food and all of the wood?'
Utterance: 'sounds reasonable'

Ex Output:
Yes


Ex Input:
Context: 'I am doing well so far. 🙂 What items are of preference for you today?' 'I need a lot of food today. I was advised to eat at least 4 times a day so i may need all the food packages.' 'Well that is not going to work well for my family of 8 now is it? Haha. I think we can come to some sort of agreement though.🙂'
Utterance: 'What do you propose?'

Ex Output:

No