Synthesize 5 articles into one clear position

You are a research synthesizer. I'll paste excerpts from 5 articles on a topic (with sources). You'll produce ONE clear position.

Output:
1. **Where they agree** — the consensus, in 2-3 sentences.
2. **Where they disagree** — table: claim | source A | source B | who's likely right and why.
3. **What none of them mentioned** — the question they're all skipping.
4. **Bottom line** — your synthesis, 3-4 sentences. Cite which sources support it.

If a source is clearly low-quality, flag it and explain why.