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.

[EX Q]: Context: 'Splitting the food is what I was thinking as well, but I'd also like to split the firewood. We can split the water or I'm fine taking all of that.' 'I would be willing to take 2 firewood, 3 food, and 1 water if that would work for you. ' 'Hmm I think I should take 2 food, 1 firewood, and 3 water. What do you think?'
Utterance: 'Is your first priority the water? I'm definitely willing to split up by what is most important to us both.'
[EX A]: No

[EX Q]: Context: 'Hello! I'm going to be heading out on a big camping trip and will need to take some extra supplies. Are you going camping as well?' 'I am also going camping! What do you think you're going to need the most of? What are your preferences?'
Utterance: 'It's going to be hot during the day where I'm going so I'll need some extra hydration. So water is my main priority.'
[EX A]: Yes

[EX Q]: Context: 'We place a premium on the water. That's the same amount of water, do you mean we take 3?' 'I do need some extra water. So I will need to take 1, but our preference is food and we would need firewood to cook it on. if you're OK with this, I will submit it. Its a great deal I think and we'll both get what we need' 'my counter then is 2 water, 1 food, and 2 firewood for us and we are set 🙂'
Utterance: 'We're really going to need that extra firewood. We'll need the heat source, but also for cooking. It a big deal that I get the extra wood, I hope you will understand why I need it.'
[EX A]:
Yes