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: 'You get 2 food, 1 firewood and 1 water' 'I am okay with that deal. What is your opinion?' 'sounds good. I will go ahead and put it in on my end'
Utterance: 'Okay. I will give you 1 food, 2 water and 2 firewood'

Ex Output:
No


Ex Input:
Context: 'Hi! How is your camping trip going?' 'It's going good we could use some more supplies such as food and firewood, though.'
Utterance: 'Same here haha. Is water your lowest priority item too?'

Ex Output:
No


Ex Input:
Context: 'well I am sure between you and me we will find a way....' 'I really need some food, but I could also use extra firewood. It is supposed to be pretty cold at night and we would love to cook up some smores.' 'I hear you we have the same issues well you can have either 2 food or 2 firewood what would you prefer?'
Utterance: 'I would prefer 2 food. I could give you 1 food, 2 firewood and 2 water?'

Ex Output:

No