@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_control_	skos:broader	isac:user-interface_element_ .
isac:menu_item_	skos:broader	isac:user-interface_element_ .