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.

Input: Consider Input: Context: 'I need the firewood and the food, you can have all the water.' 'no i need firewood to always keep myself warm.'
Utterance: 'So do I, I have health issues.  I can give you one firewood, if I get all the food. '

Output: Yes


Input: Consider Input: Context: 'I have a big party with varying degrees of health and I'm going to need every bit of firewood and food I can get my hands on!  🙂' 'hi, we may be in luck then, i really would like water as i enjoy walking and hiking, i will require some firewood though so i can roast some s'mores' 'How many people are in your camping party?'
Utterance: 'i have 6, and 2 more could be joining us to make 8 '

Output: No


Input: Consider Input: Context: 'I would like 3 firewods 1 food and 1 water we stay up late and need extra firewood' 'Oh thats expensive .There's too much cold out here and thats our major package for survival ' 'Okay when we are not camping we work at night so we are use to being up at night so we like extra firewood just to sit around campfire and chat'
Utterance: 'Yours is still better.You using it for cht but we seriously need it for survival.But i can give you a firewood and a pakage of water in exchange for two firewoods.What do you think?'


Output: Yes