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: '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' '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?'
Utterance: 'I still don't think that is too fair though, since you would be getting 6/9 of the extra items and I would only be getting 3... I'm not an avid camper so I need extra amenities to make sure I survive haha. I am flexible on the water though - maybe we can compromise there. I am fine with you having all of the wood. Maybe we could give you 3 firewood, 1 food, and 1 water?'

SOLUTION: Yes

PROBLEM: Context: 'I am ready to give 1 amount of food for you. But I want some quantity of water and firewood for me.' 'I would take 3 packages of food and just 1 package of water. Is it okay for you?' 'No, I don't take this. Because food is important for my child and me.'
Utterance: 'Try to understand our situation. We had food a week back. We were drinking only water for the whole week. We are dying of hunger. Kindly understand our situation.'

SOLUTION: Yes

PROBLEM: Context: 'Hello, I was wondering if you might want to split up the extra supplies with me. I was hoping for some food as I would have trouble gathering it up. ' 'Hello! I don't mind giving you more of the food as long as I could have more of the water and firewood. 🙂' 'Well, I do need some of each, what about I take 3 food and 1 each of the other two?'
Utterance: 'I don't mind taking 2 of the water as I need it for a medical condition and 2 firewood however I would like to get 1 of the food.'

SOLUTION:
Yes