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 am doing well so far. 🙂 What items are of preference for you today?' 'I need a lot of food today. I was advised to eat at least 4 times a day so i may need all the food packages.' 'Well that is not going to work well for my family of 8 now is it? Haha. I think we can come to some sort of agreement though.🙂'
Utterance: 'What do you propose?'

A: No
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Q: Context: 'Camping yay!' 'Hello! how are you? hoping today is finding you well. I was wondering if I can get all 3 of your Firewood, I am willing to trade for all 3 waters. I am camping with 40 kids, its our annual youth camp. its rainy season too, I really want to ensure I have enough dried wood with us. need lots of firewood for the amount of cooking I will be doing, keep the camp warm, and specially to keep those pesky bugs away. what do you think?'
Utterance: 'I could really use the firewood too, it will be very cold where we are going. Since it will be cold, we will not be drinking much water. How about 2 firewood for you, 3 food for me?, '

A: No
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Q: Context: 'Hello, how are you?' 'I'm fine, let's talk about how we can come to a fair deal.' 'Sure, my number one item if food if you can spare any.'
Utterance: 'It'd be nice if we can both get an even split right?'

A:
Yes
****