@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:penetration_testing_	skos:broader	isac:security_testing_ .
isac:_testing_	skos:broader	isac:security_testing_ .
isac:ethical_hacking_	skos:broader	isac:security_testing_ .