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: 'Hello there! Are you excited for your camping trip coming up?! I am excited to see how I can put my skills to the test!'
Utterance: 'Yeah. Nice to get out after being inside for most of the spring. This covid-19 crap! wish it would go away.'
Example Output: No

Example Input: Context: 'Same! I'm a little worried about some of my supplies though. What about you?' 'Likewise! What are you most in need of?' 'Well, I'm camping up on a snowy mountain and I gave some of my food away to hikers who were passing me and were very tired and hungry, so I'd really like to get some more food. Firewood would be useful too, although I do have a thick coat and a sleeping bag. I plan on melting the snow to get water, so I don't think I'll need that too much. And you?'
Utterance: 'I have the same needs. I have a low metabolism, so I need food and firewood to keep me warm and energized. Water I plan on filtering elsewhere.'
Example Output: No

Example Input: Context: 'I'm hoping so too. What's most valuable to you?' 'Water, what about you? ' 'Food, but I definitely do need some water, too. Can you live with taking 2 waters?'
Utterance: 'Yes, can you live with two foods? '
Example Output:
No

