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.

Context: 'I was just negotiating the water for now.  I was trying to do one at a time.' 'ah, I'm definitely ok with doing one at a time: A 2:1 split is definitely OK with me: The issue is, if we consider each individually, it might be harder to come to a deal, but I'm happy to do it your way.' 'How about you take 1 firewood, I''l take 2 and with food, you can have 2 and I'll take one package.  I have two very hungry boys!'
Utterance: 'Is there a reason you want the 2:1 split? Food my group's largest priority by a large margin (We eat a lot). It's worth a lot more to my group then the firewood would be.'
Yes

Context: 'Hi, I'd like 3 packages of food. I have diabetes and my blood sugar could drop.'
Utterance: 'oh dear, I am sorry to hear that my son is type one, I am okay with giving you all the food if you could give me all the firewood. I have hypothyroidism and it makes me get cold.'
Yes

Context: 'Hello, I really need more firewood, in exchange for me taking more of that you can have more food and we can split the water evenly 🙂'
Utterance: 'Hey, nice interacting with you. I'll need additional package of water as I need to cook as well.'

Yes