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

Document excerpt:
{text_excerpt}

Task:
1. Find a symptom description (error message, unexpected behaviour) and its root-cause explanation in the excerpt.
2. Write a question that describes the symptom and asks for the root cause or diagnosis.
3. The anchor span must contain the root-cause paragraph, not the symptom description paragraph.

{output_format}
