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: '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.'
[A]: Yes

[Q]: Context: 'Hi, I would like to get 2 additional packages of food, 2 additional jugs of water, and 1 additional bundle of firewood. I need the additional food because I will have 3 children with me on the trip and one of those being a baby. The baby needs water for her bottles and I need an additional bundle of firewood to warm her bottles.'
Utterance: 'Hi, I appreciate your response. I would like to compromise. I will give you the bundle of firewood you requested as well as the 2 packages of food. However, I would like to get 2 jugs of water. I have 2 other adults with me on this trip and they require more water to stay hydrated than a baby would.'
[A]: No

[Q]: Context: 'Hello! We're going camping and need some additional supplies. The primary need right now is firewood! We can spare water, but some additional food for the six kids is needed!' 'Wow. You took six kids on this trip? I would say you will definitely need food!' 'Yup! But we did think ahead and ordered extra rations for them. Food is second priority, so maybe we could have 2 of those? You could have all of the water rations.'
Utterance: 'I definitely need water but I didn't bring enough shelter. Thus, I will need to keep my fire going. '
[A]:
Yes