@prefix skos: . @prefix isothes: . skos:prefLabel "people associated with terrorism"@en ; a skos:Concept ; skos:narrower . skos:definition "In 1984, Robert Jay Mathews was killed in a confrontation with federal agents on a remote island in Washington State's Puget Sound. Few outside the white supremacist and Christian Identity movements had heard of Mathews before his death; however, he was the founder of the Order, one of the most infamous white supremacist groups of the 1980s. [Source: Encyclopedia of Terrorism; Mathews, Robert Jay (1953–1984)]"@en ; skos:broader ; skos:prefLabel "Robert Jay Mathews"@en ; a skos:Concept . a skos:Collection, isothes:ConceptGroup ; skos:prefLabel "people"@en ; skos:member .