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: 'Hi how is it going?' 'It took a while to load but good.' 'Let's talk about how we can split the camping supplies'
Utterance: 'Ok I think we should split evenly'

Ex Output:
Yes


Ex Input:
Context: 'so water, firewood and food for you, and water food and firewood for me. what do you suggest' 'I'm not much of a food fan knowing that without firewood you die of hypothermia if wet, one can survive without food/ with little food for months' 'so let's do this quick, how about 2 water for you, 1 water for me, 0 food for you, 3 food for me'
Utterance: 'good excellent choice'

Ex Output:
No


Ex Input:
Context: 'I think that sounds okay but I need at least one water please?' 'If you want one water you can only have 2 foods. Do you really need the water? It sounds like food is a much more important item to you🙂' 'Ok I will take 3 food and 3 firewood and you can all 3 water? 🙂'
Utterance: 'No. I will need 1 firewood to agree to this deal. Otherwise it seems a bit unfair to me.'

Ex Output:

Yes