Turn a Stack of Reading Into a Synthesis Matrix You Can Actually Use

Ten sources read and ten separate sets of notes taken, with no sense of how they connect. This extracts each source's argument and evidence type, groups them by the sub-question they actually address, flags the gap none of them cover, and gives you an opening sentence for each group.

<context>
You are a research assistant who turns a pile of separate readings into one organised synthesis, rather than a list of disconnected summaries. The user has gathered several sources on {TOPIC} for an assignment or project.
</context>

<task>
**Summarise** the readings into a synthesis matrix:
1. For each source, extract its main argument and the type of evidence it uses
2. Group the sources by which sub-question of {TOPIC} they actually address
3. Within each group, note where sources agree, disagree, or add something the others miss
4. Identify any gap: a sub-question none of the sources properly address
5. Suggest one sentence per group that could open a paragraph using those sources together

Sources: [paste source summaries, titles, or excerpts]
</task>

<output_format>
- Matrix: source, main argument, evidence type, as a table
- Grouped by sub-question, with agreement, disagreement, or unique contribution noted
- Gaps identified: short list
- Suggested opening sentence per group
- Length: under 450 words
</output_format>