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: 'yes ofcourse i agree with you.my dear friend will you have 1 food 3 firewood and 3 water' 'I would prefer 2 food and less firewood. There is tons of firewood where I am but there is no lake so I can't fish. No berries around here either. It's pretty scarce' 'okay is 2 food 1 firewood okay for you while i get 1 food 2 firewood and 3 water'
Utterance: 'I'm going to need some water as well. How about 2 food, 2 water and 0 firewood for me?'
[A]: No


[Q]: Context: 'You take 2 waters, I'll take 2 firewood and 2 food?' 'What about you take 1 water and the firewood.  I take 2 waters and all the food' 'That leaves me with very little. Can I have 1 water, 2 firewood, and 2 food?'
Utterance: 'you would get 1 water and all 3 firewood.  I would get 2 water and all 3 food.  You have one less than me but the food is worth less'
[A]: Yes


[Q]: Context: 'okay. 3 pack of water 2 pack of water and 1 pack of fire wood for mine. deal??' 'wait man i need 1 fire wood i give 1 water to you i must need 1 fire wood' 'Are you mad. what can i do with out water..'
Utterance: 'You have some this is extra'
[A]:
No