Summarize several documents as one set

Summarize these documents together. *Do not summarize each one separately.*

Output:
1. One sentence — what this set is about.
2. **Agreed** — what more than one document says. Note which ones.
3. **Conflicting** — where they say different things. Give each position with its source.
4. Present in only one document, where it matters.
5. If there is a time order, what changed between the earlier and the later documents.

Rules:
- **Section 3 is the point of this task.** Do not pass over it. Summarizing several documents together is exactly what flattens their disagreements.
- Distinguish a real contradiction from documents discussing different things. Say which you found.
- *Do not resolve a conflict or average the positions.* Report that they disagree.
- Attribute every claim to a source. A multi-document summary without attribution cannot be checked.