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.

Q: Context: 'I would need additional food to sustain my energy for my hikes. Do you mind if I take two packages of the food? What are your thoughts? ' 'That sounds good to me.' 'Do you want any of the firewood? Would you be okay if I got two packages of the firewood? '
Utterance: 'It's been pretty cold at night.  Do you think you would be able to carry the two packages of firewood?'

A: Yes
****
Q: Context: '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 ' '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? '
Utterance: 'Yes I would and i am willing to share and give you enough wood for your kid, but it gets cold and I would like to stay warm at night i bring some of my food but the lake is most likely not that clean to drink water from. you want to practice fire making once it burns it burns. '

A: Yes
****
Q: Context: 'I prefer firewood because I will get cold at night. I forgot blankets ☹️' 'Would it work for you, then, to give me the three food and three water, and I can give you all of the firewood?' 'No. Because I brought a water purifier but don't plan on hunting or fishing. So I'd be willing to give up all the water but I want 2 of the food.'
Utterance: 'I see.  I also greatly need the extra food, as I indicated. Perhaps there are some convenience or grocery stores near your campground--you might then purchase extra food there and not have to carry it with you on your trip?  '

A:
Yes
****