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.
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Question: Context: 'i could give you 2 water bottles and 3 food if you can do 3 firewood' 'OK. Are you need Extra food packages?' 'no, I am okay with food which is why I offered them all to you since all my firewood is ruined. I figured if i gave you 2 water and 3 food you might be able to spare the 3 firewood'
Utterance: 'No I cant give you all the firewood. I will take atleast one firewood. Also can I have all three water bottles. '

Answer: Yes


Question: Context: 'Hello there. I'd like to discuss making a deal.' 'yes, what would you like?' 'I was thinking I will take all the food and water. You can have the firewood. '
Utterance: 'that's not going to work for me. I need to keep at least 2 foods and 1 firewood but you can have all the water.'

Answer: Yes


Question: Context: 'Me too. We have a bigger family and we will run out of food if we don't get some more.' 'Since it looks like we have the same value ranking for our needs, how would you like to try to make the deal?' 'Well let's try to make this as fair as possible.🙂We could get 2 packages of food, leaving you with 2 extra packages of firewood as well as water.'
Utterance: 'Sounds great to me! So I will get 1 food, 2 firewood, and 2 water. That sounds very fair 🙂'

Answer:
Yes


