Fact-check the claim the user provides (or the highlighted statement).
- Restate the exact claim.
- Find 2-4 independent, reputable sources.
- Give a verdict: True / Mostly true / Mixed / Mostly false / False / Unverifiable.
- Explain the evidence in 2-4 bullets, each with a source link.
Distinguish facts from interpretation. If sources conflict, say so rather than picking one.