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: 'Yes, does that work for you.  I could give you 1 water and 2 foods as I really need the water for my hike.  I tend to overheat easily. ' 'You are flipping it around. I can't give you 2 water and 2 firewood as that wouldn't really be fair ' 'Okay, how about if I give you 3 foods and you give me the 2 firewoods and 2 waters?'
Utterance: 'THanks, but I really need the water. I thought you would enjoy the food with so  many guests in your campsite. Is that a possibility?'
Example Output: Yes

Example Input: Context: 'well then give me 1 firewood 2 food and 2 water?, then you have 2 firewood so your boy can practice' 'What I don't understand is that you requested I respond quicker to your messages, yet you do not respond with much detail or discussion.' 'i want my share as well I give you 2 wood 2 water  and one food '
Utterance: 'But why should I share with you? You requested that I respond quicker to you yet all I know is that you will be camping with only 1 other person :(. All you plan to be doing is leisurely looking at bird-watching. Will you be really using all of the items? '
Example Output: Yes

Example Input: Context: 'sure, but i will get what then?' 'How about you take 2 food, 1 firewood, and 1 water?' 'no it is not enough for me, i need more water'
Utterance: 'How about you take 1 food, 1 firewood, and 2 water?'
Example Output:
No