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: 
Utterance: 'Hello how are you?'
Example Output: No

Example Input: Context: 'We could do without the water as well. I'm willing to trade you 3 firewood for 3 food and 2 waters' 'We need some firewood too, though! ☹️ Let's try to make a deal that benefits us both! 🙂 Could I have 1 firewood, 3 food, and 3 waters?' 'I meant I would give you my firewood, what would you trade in return?'
Utterance: 'Oh sorry for the confusion. 😮 In that case, thank you for the generosity! 🙂 How about if I have 3 firewood, 1 food, and 1 water?'
Example Output: No

Example Input: Context: 'No problem🙂, i would be fine with 1 water, 1 food,and 3 firewood.' 'That works for me. Glad we could hammer out a deal. 🙂 What are you using all the firewood for?' 'so just to be clear that 1 water 1 food and 2 firewoods, and probably have a bon fire.'
Utterance: 'Correct We will take 2 food, 2 water and 1 firewood. Very cool.'
Example Output:
No