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.

Example 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?'
Example Output: No

Example Input: Context: 'Hello, I was hoping we can chat. ' 'Hi there. ' 'So why did you decide to come camping?🙂'
Utterance: 'I think it will be fun. I was wondering what your preferences are for the extra items we can bring?'
Example Output: No

Example Input: Context: 'hi i am good how about yourself🙂' 'Pretty good. Ready for this camping trip!' 'as ready as I can be hiking with 3 teenage boys..lol how about you?'
Utterance: 'Haha, yeah I can't wait to go. I really need lots of food and a bit of firewood. What do you need?'
Example Output:
No

