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 can give out the food in exchange for the firewood' 'Okay. I need all of the water, if you're getting the firewood. ' 'I can't give out all the water. I need to be hydrated as well. '
Utterance: 'You already have all the basics, though, so you won't lack sufficient water to be hydrated. I have a serious medical condition that requires that I have access to additional water. '

A: Yes
****
Q: Context: 'Your two youngest kids are working? How old is everyone? If there's a lot of people, it will be easier to split up the duties and get things done. My son's 3 years old so as much as he's eager to help, there's not much he can do lol.' 'Ha Ha...no my too youngest have hardly been anywhere because of us adults working,  I have teens (17, 15), tweens (13) and littles (10, 7). We 3 boys and 3 girls. We have a 21 year old but he's in a band so h can't go. They all pitch in anytime. They eat a lot so they have to cook from scratch at home. Awww 3 is so adorable...that's when they are sure they can do and will work so hard! ' 'Home cooking's the best, yumyums! We're planning on doing a lot of fishing since my son's been in love with fishing toys and is currently in love with eating fish (he hasn't gotten tired of eating it every night for dinner). We're thinking of cooking what we catch every night. Do you have any activities planned for your camping trip?'
Utterance: 'Fishing is so fun! 🙂 We really don't have a plan... so many people, so many opinions. If you'll be fishing and eating your catch, you'll probably need more firewood than food. And with the filters, you will need some extra water, especially for your little guy. So would you agree that you take 2 firewood packages, 1 food package and 1 extra water. '

A: Yes
****
Q: Context: 'Oh yes, sorry I am so caught up with my wound I completely forgot about that. I can spare 1 firewood so you would get 2, do you think you could spare another water in exchange for the wood?' 'i cant unfortunately i really need the two water im sorry. ' 'im so sorrry unfortunately i am in dire need of two wood we are in a very cold climate'
Utterance: 'how about i get 1 water, 2 food, and 2 firewood since I'll be here so long? because of my leg i likely won't be able to leave anytime soon'

A:
Yes
****