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: 'ok' 'So I really don't need that much firewood. I am willing to give you all 3. What is your situation?' 'I have a lot of people here.I need food.'
Utterance: 'I also need food, but am willing to share and give you extra firewood so you can cook more food. I am not able to hunt or fish and the extra food will help if I am not able to get around. '
[A]: Yes


[Q]: Context: 'Same, my kids are as well! They have not been camping before. They are super excited about the campfires. I'm worried I don't have near enough firewood though. I just found out you can't cut any trees down where we are staying. ' 'oh no I'm so sorry to hear that. My kid are looking forward to the ghost stories around the campfire.' 'My kids will enjoy that as well. I'm hoping I can pack several extra things of firewood. If I could get 3 more packages I would feel better about having enough firewood to have campfires during the evening and to cook on. '
Utterance: 'ok I completely understand. I am more than happy to offer you 3 firewood in exchange for 3 food. If you are ok with splitting 2 water for me and 1 for you that works well. My kids need food and water for their medications.'
[A]: No


[Q]: Context: 'okay. 3 pack of water 2 pack of water and 1 pack of fire wood for mine. deal??' 'wait man i need 1 fire wood i give 1 water to you i must need 1 fire wood' 'Are you mad. what can i do with out water..'
Utterance: 'You have some this is extra'
[A]:
Yes