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.

Q: Context: 'I do have a little hike planned, so the water comes in handy. I am more excited to relax and fish' 'Well I want to go run the trail, but like to check it out first. Perhaps we could walk one together. perhaps in a couple moments we could fix the supply situation .' 'Yeah, that would be fun. '
Utterance: 'Well, why dont you propose how to divvy up the packages and we can get on with out camping?'

A: No
****
Q: Context: 'no i think i need 2 waters' 'That will be very difficult for me. I have a condition that requires water all the time.' 'Same thing here. Also i only need 1 food so can i get 2 waters'
Utterance: 'Let me see the best offer for us then. I hope you will be okay.'

A: Yes
****
Q: Context: 'Hello how are you today? 🙂 Do you have any initial ideas on how to split everything? ' 'I was thinking maybe I could have a majority of the fire food and you can have a majority of the water and food. ' 'What exactly do you mean by majority? As in everything ?'
Utterance: 'I was more thinking 2 Firewood for me , 1 food and 1 water? The rest would be yours.'

A:
No
****