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 uv-part strategy, otherwise output No. uv-part is a selfish negotiation strategy. It is used to undermine the requirements of the opponent. For instance, suggesting that the opponent would not need more firewood since they already have the basic supplies or a suggestion that there might be a store near the campsite where the opponent can get the supplies instead.

Ex Input:
Context: 'I do.  I have been looking everything over and feel this won't be to hard to come to an agreement' 'Well my camp places a premium on water.  How would you feel about for me: 2 water, 1 food, 1 firewood?' 'I think we're on the right track.  I am bring my 2 kids with me and they eat everything in sight.'
Utterance: 'Would they be okay with 2 food?  Otherwise can give you an extra and I can take either an additional water or firewood 🙂'

Ex Output:
Yes


Ex Input:
Context: 'Okay so would 2 firewood for you and 1 for me work, and 2 food for me and 1 for you?' 'I can definitely agree to that.  What was your second preference?  Water was my third.' 'firewood is my second preference and water is my third'
Utterance: 'Well, water doesn't benefit either of us much, so you can have two. So you will take 2 food, 1 firewood and 2 water?'

Ex Output:
Yes


Ex Input:
Context: 'oh okay, you understand correctly, when you take the material from us' 'Okay, sounds good then.  I believe we have a deal then.' 'yes, we have a good deal. you want water from us'
Utterance: 'No, I want firewood and food.  No water.  I want 3 firewood and 2 food.'

Ex Output:

No