TASK DEFINITION: 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.
PROBLEM: Context: 'We wantto do a lot of hiking on our trip and therefore I need extra water to make sure we stay hydrated. ' 'hi! thats awesome i am going camping too, but not a lot of hiking. I am bringing 2 teenage boys so food will be very important for us' 'I definitely understand that, kids can eat a lot. I  can spare 2 extra food for all the water. '
Utterance: 'that will work for me - how about i take 2 food, and all the firewood - i am hoping to teach my boys campfire songs - they need other hobbies that dont include electronics :). You can have 1 food and all the water? '

SOLUTION: No

PROBLEM: Context: 'How's it going?  If it's alright with you, you can have all of the water and I'll take all of the firewood.  We can work out a deal on the food as well.' 'I have circulatory issued due to a heart condition and cold quickly. I would appreciate if I could get at least 2 of the firewood. You can have 2 of the food so you won't get hungry. 🙂'
Utterance: 'I was planning on building a big bonfire for the evening.  There'd be plenty of room if you wanted to join for warmth.  I'm a bit hungry and would appreciate the extra food.  You can have all of the water if you'd like.  If you warm it by the bonfire, it may be useful to soak in to improve your circulation.'

SOLUTION: Yes

PROBLEM: Context: 'That would leave me with no water. I would like 1 package of water, 2 packages of food, and 2 packages of firewood.' 'You'll have some water, this is for extra.  Would you take 2 packages of food and 3 packages of firewood in exchange for me getting 3 packages of water and 1 package of food?' 'Yes, I would.'
Utterance: 'And you can use your extra firewood to purify any water you find as well while you're already enjoying the fire.'

SOLUTION:
Yes