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Cluster Betweenness Distribution

Eight clusters · betweenness share of total corpus weight

79% / 10% / 0 bridges. AHA institutional poles — Heart Health, Regulatory Authority, Research Partnership, Statistical Update — total 79% of corpus betweenness. The Labor Funding cluster carries 10%, with no bridge-language from any AHA pole. The structural absence is the gating constraint between mission authority and policy impact.

Read the chart top-down: cluster size names institutional discourse weight. Heart Health at 42% is the unambiguous lead — the language the AHA owns. Labor Funding sits at 10%, comparable in size to Statistical Update, but where Statistical Update sits inside the AHA institutional bloc, Labor Funding is structurally orphaned. Cross-Sector Vocabulary at 2% is the peer-comparison axis where the Commonwealth Fund currently leads.

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