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.

Input: Consider Input: Context: 'I am okay. How about I give you one and half then I get some firewood from you?' 'No I need at least 2 waters.  But I am willing to give you all 3 foods, if I get all the firewood.  Does that work for you?' 'Okay I will give you 2 waters. I actually need more of firewood. If I can get 2 I will be glad.'
Utterance: 'Well I really need the firewood because I have small kids with me and it would be hard for me to get some free time to get the firewood, but I would be willing to give you 2 firewood since I get two waters.  What are your thoughts about the food?'

Output: No


Input: Consider Input: Context: 'deal' 'Awesome! 🙂 What else will you do on your trip?' 'i hunt hehe'
Utterance: 'Nice. We will do some fishing and hiking.'

Output: No


Input: Consider Input: Context: 'That would make things better for me.  ' 'Can I ask you why you need so much water for one person? ' 'Hiking in the summer, I sweat a lot and I don't want to risk getting dehydrating and sick out in the woods.'
Utterance: 'Well this might work out, I will agree to take 2 food, 3 firewood and 1 water. I think we will be fine because we are not going hiking. We are going to sit around campfire and catch up on old times. Good deal for both of us if you agree. 🙂'


Output: Yes