@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:graphic_card_	skos:broader	isac:computer_specification_ .
<http://webisa.webdatacommons.org/concept/_amount_of+ram>	skos:broader	isac:computer_specification_ .