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: 'were getting closer - id do 2 water, 2 food, 1 wood' 'I don't know. You are geting more items. That's greed bro :-)' 'I just want to make sure you are getting extra of the items you really need like firewood🙂'
Utterance: 'It's not like I don't need foor. I have two teenagers. Do you know how much they eat?'

Answer: No


Question: Context: 'Ah, so you want some extra water too? I have a lot of lemonade mix for the kids so I'll need water for them.' 'I tend to get dehydrated quickly so if I don't have enough to drink I won't be able to provide everyone with food.' 'Well, we have extra food too. How about I take 2 water, 1 food, and give the res (1 water, 2 food, 3 firewood) to you?'
Utterance: 'That's super thoughtful of you. However, I really need two waters so I can provide for everyone. Once we have enough food and fire we can always go get water from the stream and boil it for the kids.'

Answer: No


Question: Context: 'That's true but we don't want to be dehydrated either since we have so many people haha. Here's my suggestion: 2 waters for me and 2 food items for you?' 'if u had hungry means what will u do. u need food. right. hehehe' 'I'm willing to give more food to you in exchange for more water since not everybody in my group eats a lot. How about this: I take 2 waters, 1 food, 1 firewood and you can get everything else?'
Utterance: 'ok i accept  ur thoughts.sharing is good habit'

Answer:
Yes