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: 'Sounds great!' 'Ok, my proposal is to give you all the firewood you need, on the condition that you give me all the water I need. And regarding food we can negotiate.' 'That sounds good. What do you propose on the food?'
Utterance: 'My proposal is to give you 3 firewood, 2 food and 0 water. What do you think of the deal?'
Example Output: No

Example Input: Context: 'Since you would also like firewood, I propose 2 firewood, 2 water to me, and you get 1 wood, 1 water, and all the food to make up for it.' 'Okay I can agree to that deal.🙂' 'That's fantastic, I'm glad we came to something we both agree with'
Utterance: 'Me too. I hope you have a wonderful camping trip.🙂'
Example Output: No

Example Input: Context: 'Hi there! I am excited to share these additional camping supplies with you!' 'Yes, same here! I'm glad that we all have our own basic necessities, but extra is always wonderful. 🙂 What are you most interested in?' 'I am most interested in water! My husband and I are traveling with our newborn and we need as much water as possible!🙂'
Utterance: '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'
Example Output:
Yes