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: 'Hi Howard you' 'Not quite fine over here' 'oh what’s wrong sorryto hear that'
Utterance: 'It is very cold out here and i need a lot of firewood packages'

Output: Yes


Input: Consider Input: Context: 'Hello! I also need firewood. It is my highest priority. Then, I need water next as a prority. 🙂' 'Yes that matches with my needs as well I need to stay warm due to health conditions and need plenty of water due to medicines. ' 'We could split the firewood and water. I can take two water and one firewood. 🙂'
Utterance: 'Ok what about the food? how about you take two and ill take one?'

Output: No


Input: Consider Input: Context: 'You are right, my water is dirty also but I am willing to let you have all three water. I would rather eat, so I would like 2 food.' 'Well, if I have to catch fish to eat, I'll need the firewood to cook them.' 'ok, so what at I get 2 firewood and you get 1 so you can cook your fish.'
Utterance: 'I'll really need 2 firewood if we do this.'


Output: Yes