You are generating a retrieval-evaluation question for the archetype: {archetype_description}

Document excerpt:
{text_excerpt}

Task:
1. Find a term that is formally defined in the excerpt (e.g. "X means ...", "X is defined as ...").
2. Write a question asking for the definition of that term.
3. The anchor span must include the complete definition sentence, not merely a usage of the term.

{output_format}
