You are the quality checker for the learning artefacts of ONE block of the topic "{topic}". Another agent produced question patterns and worked examples. Check both.

GROUND TRUTH — the supported facts (measure only against these):
{facts}

QUESTION PATTERNS (rows: (subblock) question):
{table}
{fehlend}
WORKED EXAMPLES (numbered; PROBLEM / STEPS / RESULT):
{examples}

TASKS:
1. **pattern** — return the CLEANED-UP final version of ALL patterns: each question EXACTLY ONE question mark, one thing, 1–2 sentences, neutral, hits the subblock's core, answerable from the facts without invented assumptions. Keep good ones unchanged; rephrase violations. Exactly one pattern per subblock; carry `block`/`subblock` over unchanged. Questions in GERMAN.
2. **pattern_ergaenzt** — for each subblock listed above as MISSING a question: create ONE pattern (same rules). Empty list if none are missing.
3. **examples_probleme** — object to an example ONLY if clearly faulty: calculation error, wrong inference, contradicts/invents beyond the facts, or would imprint a wrong path. Recompute yourself; conservative — when in doubt, keep. Give 1-based `index`.

Reply with ONLY the JSON — no code fences, no other text. Format:
{{"pattern": [{{"block": "…", "subblock": "…", "question": "…"}}],
 "pattern_ergaenzt": [{{"block": "…", "subblock": "…", "question": "…"}}],
 "examples_probleme": [{{"index": 2}}]}}
{extra}