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: 'Good thanks. I'm a bodybuilder so I need a lot of food and water if that's ok with you?' 'Oh that's cool! I will be camping with my 4 children so having a little extra would be great for me too.' 'Ok great! Do you need firewood?'
Utterance: 'I could use a little to cook with, But food is my main concern. Is it hot where you will be? '
Example Output: Yes

Example Input: Context: 'Hello 🙂' 'Hello to you!' 'Food is the most important item for me because the food I brought has spoiled! Which item do you need the most?'
Utterance: 'I need water above all else.'
Example Output: No

Example Input: Context: 'Hey!🙂 How are you? What were your plans for the weekend?' 'Hi. I'm doing great. How are you? I'm planning on going camping.🙂' 'I'm great! Me too! did you have any specific plans? I wanted to make an extra fire to cook with and cook a nice meal. '
Utterance: 'Yes. I'm actually taking a large group of people. Some friends and family are going and I kind of also wanted a bit of extra firewood. 🙂'
Example Output:
Yes