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.
--------
Question: Context: 'Hello there.  That deal most definitely will not work for me. ' 'OK, If i take all 3 of the foods and 1 of the waters you can have the remaining packages ' 'I need to eat too, especially if I want to go on a long hike.  How about I take 2 foods, 2 waters, and 1 firewood? '
Utterance: 'I am sorry that will not work for me, how about i take 2 food, 1 water and 1 firewood and you can have the rest? That way we each get some of each'

Answer: Yes


Question: Context: 'are you hiking alone?' 'no i will have my husband and my dog with me' 'oh nice well how about you give me 3 water and I give you 3 food and we figure out the wood make a suggestion'
Utterance: 'ill take one you get twoa/'

Answer: No


Question: Context: 'I can do that. Would you also be able to give me one firewood?' 'Sure, I can spare that' 'I really appreciate you being so kind. I have so much medication to take and have to make sure I take it with lots of water.'
Utterance: 'Its ok'

Answer:
No