@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:os_x_	skos:broader	isac:unix-based_platform_ .
isac:_linux_	skos:broader	isac:unix-based_platform_ .
isac:_solarus_	skos:broader	isac:unix-based_platform_ .