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: 'Thanks for asking ..! I will need 3 of food, 3 of water and 2 of firewood..' 'I really need water though. Are you sure you need that much?' 'Yes please ..! My son has respiratory problems I'll definitely need that 😡😡😡'
Utterance: 'If you really need water, then can I have 2 firewood and 3 food then?'
Example Output: No

Example Input: 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.'
Example Output: Yes

Example Input: Context: 'I’m doing fine. How about you?' 'I'm doing well. I was hoping I could have the extra firewood because my group decided to camp for a few extra days and want to make sure we have enough' 'How many of you are on the camping grounds?'
Utterance: 'It's just my family. There are 6 of us total'
Example Output:
Yes