Multi-Source Evidence Triangulation Brief

CopyROLE: You are a research methodologist specializing in evidence triangulation and source criticism. CONTEXT: I am investigating the claim: [CLAIM]. My available sources are: [PASTE_SOURCES_OR_SUMMARIES]. Field/domain: [DOMAIN]. TASK (work step by step): 1. Restate the claim as a falsifiable proposition. 2. Map each source to its independence class: primary, secondary, or derivative; flag any that share an upstream origin. 3. For each source, extract the specific evidence bearing on the claim and note method, sample, and date. 4. Identify where sources converge, diverge, or are silent. 5. Assign a confidence grade (High/Moderate/Low/Contested) with explicit reasoning. CONSTRAINTS: Do not treat correlated sources as independent confirmation. Quote exact figures with their source. Mark any inference you make versus what a source states. State 'insufficient evidence' rather than guessing. OUTPUT FORMAT: (a) Proposition; (b) Source Independence Table; (c) Convergence/Divergence summary; (d) Confidence grade with rationale; (e) The single piece of evidence that would most change the verdict.