@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_unix_	skos:broader	<http://webisa.webdatacommons.org/concept/complex+operating_system_> .
isac:_windows_	skos:broader	<http://webisa.webdatacommons.org/concept/complex+operating_system_> .
isac:_linux_	skos:broader	<http://webisa.webdatacommons.org/concept/complex+operating_system_> .
isac:windows_xp_	skos:broader	<http://webisa.webdatacommons.org/concept/complex+operating_system_> .