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.
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Question: Context: 'Alright, I think that's agreeable to me too. I really appreciate it, that means a lot to me and my family.' 'How many family members do you have? ' 'Me, my wife and our two kids.'
Utterance: 'I could use 1 package of firewood if your family has other heating options like a butane food cooker.'

Answer: Yes


Question: Context: 
Utterance: 'Hi  - nice to meet you!  I hope we can work out a deal that is good for both of us.'

Answer: No


Question: Context: 
Utterance: 'Hello how are you?'

Answer:
No