When you don't have data, create it. Options:
Manual creation: Write examples yourself. Highest quality, lowest scale. Aim for - examples as a starting point.
Expert annotation: Pay domain experts to create or label data.
Mining existing sources: Extract from logs, documentation, or public data.
Synthetic generation: Use LLMs to generate training data.
Define clear annotation guidelines before starting. Create diverse examples covering edge cases. Most projects combine multiple approaches.