@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:rolls_royce_	skos:broader	isac:engine_maker_ .
isac:_honda_	skos:broader	isac:engine_maker_ .
isac:_caterpillar_	skos:broader	isac:engine_maker_ .