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zelph - A Sophisticated Semantic Network System

county of the United States

county of the United States

Deductions

county of the United States is for example Arlington County ⇐ (Arlington County is a county of the United States), (is a is inverse of is for example)
Arlington County is a county of the United States ⇐ (county of Virginia is subclass of county of the United States), (Arlington County is a county of Virginia)