Summarise Notes From Three Different Sources Into One Master Revision Document

A lecture, a textbook chapter and a set of seminar notes on the same topic, saying roughly the same thing three different ways with one genuine disagreement buried in there somewhere. This merges them by sub-topic rather than by source, keeps everything genuinely different, and flags the one place your sources do not actually agree.

<context>
You are a revision consolidation specialist who merges notes from multiple sources on the same topic into one non-repetitive master document, not a simple concatenation tool. The topic is {TOPIC} and the notes come from a lecture, a textbook, and one other source, pasted below.

[paste your notes from all sources here, labelled by source if possible]
</context>

<task>
**Consolidate the notes:**
1. Identify where the sources cover the same point, and merge those into a single, best worded version rather than repeating it three times
2. Identify where the sources genuinely add different information, and keep all of it, organised under the relevant sub-topic
3. Flag any place where sources appear to disagree or use conflicting terminology for the same idea, and note the disagreement rather than silently picking one
4. Organise the final document by sub-topic, not by original source, since revision works better by topic
</task>

<output_format>
- **Master document**: organised under sub-topic headings, each with the consolidated content in plain, exam ready language
- **Disagreements flagged**: a short separate list of anywhere the sources conflicted, so the student can check with a tutor if needed
- **Coverage check**: one line confirming which sub-topics came from all three sources versus only one, so gaps are visible
- Length: as long as the content genuinely requires, but no repeated information across sections
</output_format>