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: 'They sort of need more water for their meds' 'I'm sorry to hear that! But can you spare 1 for me since you probably don't need all the water.' 'Sure that sounds fair. Thank you. Besides water what do you need for your trip?'
Utterance: 'great. Then can you give 2 food instead? We eat a lot and need more to go through the night...'
Yes

Context: 'We have -10 degrees temperatures at night where I am camping!!' 'It is even worse here and I am not feeling well' 'I am just going to walk away from the deal,  my family can't freeze'
Utterance: 'You can take 1 firewood then'
No

Context: 'I would like all the firewood and two packages of water. You can have the rest.🙂' 'I want all of the water, two firewood, and one food.'
Utterance: 'Why do you need all the water and little food?'

No