TASK DEFINITION: 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.
PROBLEM: Context: 'I will get two packages of food and you will receive one. I will get one jug of water and you will receive two. I will get one bundle of firewood and you will receive two.' 'Perfect. It has been a pleasure negotiating!' 'Yes, it has been a pleasure 🙂'
Utterance: '🙂 I hope you enjoy the rest of your day!'

SOLUTION: No

PROBLEM: Context: 'Hi there! How are you?'
Utterance: 'Great! I'm very excited to go camping, how about you?'

SOLUTION: No

PROBLEM: Context: 'I need water and firewood. I don't need as much food. I need water for my dog and firewood for warmth since I am camping during the winter' 'I need water because I'm going hiking, and the water from streams isn't safe to drink.' 'I can give you 2 units of water, but I need at least 1. '
Utterance: 'I also need firewood, I have some health issues.  I need the wood to keep warm at night, and for cooking fish.'

SOLUTION:
Yes