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.

Example Input: Context: 'I am most interested in water! My husband and I are traveling with our newborn and we need as much water as possible!🙂' 'Ah, I see! I am in the same boat. We are camping somewhere where there is no source of water and it's very hot. Hm, let's see how to go about this' 'what else is a priority for you?'
Utterance: 'Firewood is definitely important as well! Last time I went camping we ran out pretty fast, so I want to be extra prepared. 🙂'
Example Output: Yes

Example Input: Context: 'I can't take cold and would badly need to have more firewood.' 'I need more firewood to keep my food going.' 'I get it, in that case I'' take additional packages of food.'
Utterance: 'I don't think so, because I need additional packages of food in case there is an emergency.'
Example Output: Yes

Example Input: Context: 'I need a lot of water too. Thank you for understanding.' 'no sorry i dont think so. i need some extra water because i only need a little food' 'Okay then. I can give up one for you. Will that be okay?'
Utterance: 'no i think i need 2 waters'
Example Output:
No