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: 'I'd like to have 2 extra packages of water and firewood.' 'I see. And I would like 2 extra packages of Food and 2 packages of  Water as well.' 'I have a great risk of dehydration.  I really need those 2 extra packages of water. You can have all the extra food.'
Utterance: 'Why do you have a risk of dehyrdation? Because I believe all people do but I do understand some people are at a greater risk then others. Tell me why you are at risk?'
Example Output: Yes

Example Input: Context: 'I think that I should get 2 firewood, 1 food and 2 water' 'I will let you have 2 firewood if you let me have 3 food, 2 water, and 1 firewood.' 'That would leave me with no food. I counter with 2 firewood 1 food 1 water. '
Utterance: 'Well, with the extra firewood you are getting you will be able to cook your own food.'
Example Output: Yes

Example Input: Context: 'I can give you 2 waters and 1 food, but I really need more firewood. I ran out last time and I don't want to go through that again! How about you take 2 waters, 1 food, and 1 firewood? ' 'I feel like we are almost there I hunt so im ok with the one food; why would  I only get one firewood?' 'I just want to make sure that I don't run out. I will have my kids with me and need to make sure they don't get too cold 🙂'
Utterance: 'Understandable I am an avid outdoorsmen; Starting firewood is hard and can also be dangerous; how about you give me the two I will only use one you get one and I will be able to secure more within a few hours. '
Example Output:
Yes