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: 'I need all three of the firewood and three water. You can have all the food.' '😮 May I ask why? I do need food, but I need some firewood as well.' 'I need firewood to cook the fish I plan to catch. I don't really need more food, but I can use a little water too, since it's warm.'
Utterance: 'I need firewood, because I have a medical condition that causes my veins to close if I get too cold at night. I don't mind sharing the water.'
[EX A]: Yes

[EX Q]: Context: 'That doesn't really work for me because then I would get only 2 waters and nothing else ☹️. What do you think is your highest priority?' 'Wood is my highest priority. I need it to stay warm. I'm very cold-natured. What is your highest priority? 🙂' 'Oh that's good. Wood is not my highest priority since I get hot easily lol. My highest priority is probably food because I have a very high metabolism and get very hungry'
Utterance: 'I understand that. I also need food though, because I need the sustenance to help warm me up. So maybe 3 firewood 1 food and 2 waters for me?'
[EX A]: Yes

[EX Q]: Context: 'Sounds good I will give you the 2 packages of food.🙂' 'So nice of you !! Now can you summarize your needs?' 'I will need 3 packages of firewood. 1 package of food and 1 package of water. What are your needs?'
Utterance: 'Yes, you are absolutely right. Thank you very much !! I'll take 2 package of food and 2 package of water .'
[EX A]:
No