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: 'I can give you more food if you like but I really need the water' 'It seems we both need the water so If you want 2 water, I would need all the food and firewood as well.' 'How about this I give you 1 package of  water, 2 packages of food, and 3 packages of Firewood.  You get the majority of my items'
Utterance: 'I guess that could work and seems pretty fair for all.'

Ex Output:
Yes


Ex Input:
Context: 'Hello, how are you? 🙂' 'I'm good, how are you doing today?'
Utterance: 'I'm doing great!  I'm on the first camping trip with my five children.'

Ex Output:
No


Ex Input:
Context: 'I do not want my family to freeze either but walking away doesn't benefit either of us. How about I take the water and 2 firewoods, you have the rest' 'No deal, I need at least 2 firewood' 'Ok, I can agree to 2 firewood but I will have to take all the food and water to compensate'
Utterance: 'I am walking away, completely unfair'

Ex Output:

Yes