The claim I want to verify is: [PASTE OPINION, CONCLUSION, DATA OR PROPOSAL].
First, break it down into: 1. externally verifiable facts; 2. conclusions derived from facts; 3. value judgments it contains.
For the factual part, please search online to verify sources, samples, timing and full context, and mark each as: 1. Verified; 2. Basically true, but needs narrowing; 3. Disputed; 4. Insufficient evidence; 5. Clearly false.
Assuming the relevant facts hold, continue to check: 1. whether these facts can lead to the current conclusion; 2. whether there are unverified assumptions; 3. whether correlation and causation are confused; 4. whether other explanations or key information are omitted; 5. under what conditions the conclusion holds or fails.
Finally, output: 1. which facts are credible and which need correction; 2. the most critical flaw in the reasoning chain; 3. the most reasonable strengthened version; 4. to what extent I can believe it for now.