@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_linux_	skos:broader	isac:gnu_system_ .
<http://webisa.webdatacommons.org/concept/_gnu%2Flinux_>	skos:broader	isac:gnu_system_ .