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 Q]: Context: 'Bye then' 'Your decision could not use both of us' 'I will give you 3 firewoods and I will take 3 water and 3 food.'
Utterance: 'This is not work for me at least give me one more water package'
[EX A]: Yes

[EX Q]: Context: 'Hello I'm really hungry and thirsty and want some food and water if that's ok with you. '
Utterance: 'Well some is okay but not all. The thing is that we left in a hurry and forgot to pick up the bag with the extra food items. I am sorry but we have kids with us so we will need the food. Am sure you understand ☹️'
[EX A]: Yes

[EX Q]: Context: 'I'm good! I'm looking forward to my camping trip this weekend. How about you?' 'I'm good as well, I hope the weather works with me 🙂' 'Sending good luck your way! Any items in particular you need for your trip?'
Utterance: 'Well, I'll start with a trial offer and we'll go from there'
[EX A]:
No