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 self-need strategy, otherwise output No. self-need is a selfish negotiation strategy. It is used to create a personal need for an item in the negotiation, such as by pointing out that the participant sweats a lot to show preference towards water packages.

[Q]: Context: 'I have not really camped before so I am looking for as many supplies as possible. What about I get 3 food, 3 firewood, and 1 water. ' 'funnny you but no. so what else will i be left with if i give you those. okay let say i get 2 food, 2 firewood and 1 water.' 'I am really bad at cooking so will probably need an extra good just because I'll ruin one of the 3. Plus Im bringing 2 dogs they can eat the bad food I make 😮 I dont plan on hiking much so how bought I keep all 3 foods, and you keep all 3 waters and we can split the firewood. 2 for me, 1 for you. Great deal!'
Utterance: 'i too i am bad at cooking and i will spend a longer time in the woods so i will need atleast 2 foods, 2 firewood and 1 water'
[A]: Yes

[Q]: Context: 'I am so excited to go camping! I am planning a nice long walk in the woods to decompress from the hectic days of working.' 'I am too. I've been thinking of this since COVID. I hear we have some materials to share between the two of us. What are you thinking? For me, I am from the South so I get cold easily 🙂 so firewood is my main priority.' 'Perfect! I'm a northerner, so the firewood is all yours! I'll need lot's of water to keep hydrated after the hike, and I'll probably be pretty hungry too.'
Utterance: 'My spouse calls me a water buffalo so I'm pretty water dependent if you couldn't tell. '
[A]: Yes

[Q]: Context: 'Hello, what are your preferences for extra supplies? I am greatly in need of food and water. We will be doing a lot of activity in a hot, dry climate.🙂' '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?'
Utterance: '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.'
[A]:
Yes