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 would like a little extra food for myself as well. Would you be willing to split the food 1 for me and 2 for you? ' 'I'd be willing to do that if you gave me some water and firewood in exchange' 'How about I keep 2 firewood, you take 1? What do you propose for the water?'
Utterance: '1 food for 1 firewood isn't a good trade for me. I would need at least 1 firewood and 1 water to trade for 1 food.'

A: Yes
****
Q: Context: '2 food would be all that I need 🙂' 'I would need 2 food if you keep all the firewood. It would make it easier on me cooking wise since I'll have to look for wood' 'OK, that is fair.  So I would get 3 firewood, 1 water and 1 food and you would get 0 firewood, 2 food and 2 water.'
Utterance: 'I think that sounds fair to me'

A: Yes
****
Q: Context: 'not too bad, looking forward to a good camping trip 🙂' 'Yes!  This camping trip is going to be great!  I hope to make it very memorable.' 'indeed.  anyways, I would like to divide the extra supplies equitably'
Utterance: 'I think we can defintiely work together and come up with a great solution and both get what we need'

A:
Yes
****
