You are auditing the decomposition of ONE block of the topic "{topic}" into subblocks. Below are the numbered subblocks with their captured facts, then source excerpts. Apply the 100%-decomposition test: no entry removable without a gap, none addable without duplication — and verify the facts.

BLOCK: {block}

SUBBLOCKS (numbered; key points indented):
{subs}
{unsicher}
{source}

Judge ALL of the following (use the numbers):
1. **gruppen** — entries that state the SAME thing or where one is a subset of the other: group them and name the number that should remain (`haupt` = the base statement, not the detail).
2. **kataloge** — pure enumeration entries of ONE kind (e.g. five option rows): bundle them under ONE short GERMAN collective title.
3. **fremd** — entries off-topic for the topic "{topic}" (not this block — the TOPIC).
4. **luecken** — essential aspects of THIS block that the excerpts cover but no entry captures (short German phrases). Only real gaps, no nice-to-haves.
5. **uebernehmen** — for each UNSICHER-numbered entry: "ja" if the excerpts back it and it fills a real spot, else "nein".
6. **facts_probleme** — entries whose facts contain something wrong or unbackable: `discard: true` ONLY if the entry as a whole is unsupportable in substance; otherwise `discard: false` with a short `hinweis` what to correct.
7. **levels** / **relevanz** — ONLY entries whose level (beginner/advanced/expert) or relevance (relevant/peripheral) is clearly wrong: number → correct value.

Judge ONLY from the excerpts. If everything is fine, return empty lists/objects.

Reply with ONLY the JSON — no code fences, no other text. Format:
{{"gruppen": [{{"haupt": 1, "weitere": [4]}}], "kataloge": [{{"titel": "…", "mitglieder": [2, 5]}}],
 "fremd": [7], "luecken": ["…"], "uebernehmen": {{"9": "ja"}},
 "facts_probleme": [{{"nr": 3, "discard": false, "hinweis": "…"}}],
 "levels": {{"2": "expert"}}, "relevanz": {{"5": "peripheral"}}}}
{extra}