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.

Example Input: Context: 'Firewood is my second priority. Can I have 2 of firewood?' 'okay🙂 is it cold so you want firewood?' 'Yes, I get cold easy. Thanks a lot!'
Utterance: 'sure, i have a lot of people coming thats why i need food'
Example Output: No

Example 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 🙂'
Example Output: Yes

Example Input: Context: '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?' '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.'
Utterance: 'Of course there is no garuntee you will catch anything, if you want 2 waters I'd prefer to take all the food just in case'
Example Output:
No