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: 'Hello! I'm so excited for this camping trip. What do you still need as your supplies?'
Utterance: 'I think food, water, and firewood are all going to be fairly important.'
Example Output: Yes

Example Input: Context: 'Hello, how are you doing today?' 'Hey there, I'm doing well! I'm excited to choose camping supplies.' 'Me too🙂. I packed a lot of food so I have plenty to spare'
Utterance: 'that's awesome. I think I need more food myself, but I have tons of water.'
Example Output: Yes

Example Input: Context: 'what is the next thing you need the most/?' 'firewood to keep the body warm ' 'so water, firewood and food for you, and water food and firewood for me. what do you suggest'
Utterance: 'I'm not much of a food fan knowing that without firewood you die of hypothermia if wet, one can survive without food/ with little food for months'
Example Output:
Yes