| def explain(query: str, excerpt: str) -> str: | |
| q = query.lower() | |
| hits = excerpt.lower().count(q) | |
| return ( | |
| f"This document mentions '{query}' {hits} time(s). " | |
| "Results are ranked by simple frequency within released text. " | |
| "This does not imply factual verification." | |
| ) |