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.

Ex Input:
Context: 'I was thinking about 2 units of firewood and 1 unit of food and one unit of water, what are you going to be needing this for?' 'I can do that. I am going camping in the fall with my family so we need a lot of food. We're camping by the lake so if you want I can give you an extra unit of water.' 'sure thats sounds fair, so that would leave you with two units of food one unit of firewood and one unit of water then?'
Utterance: 'That sounds fair to me. Have fun with the kiddo!'

Ex Output:
Yes


Ex Input:
Context: 'you can make water by boiling water with all that extra firewood you got' 'you said I could have some firewood' 'Let me take 2 firewood, 2 water and you take the rest. You will have more than me overall'
Utterance: 'ok'

Ex Output:
No


Ex Input:
Context: 'you consider me giving one of your water package and collect food package, if you are lucky you can get liquid foods too🙂' 'I don't like food. my stomach is always full. I only drink water since im thirsty most of the time.' 'yeah i can understand buddy, but the fact is we can share some items. you are not getting food packages and getting packages alone which you preferred. Try some food packages too'
Utterance: 'Okay I agree what about this deal. I get 2 water, 1 firewood ,and 1 food package.'

Ex Output:

No