@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_character_	skos:broader	isac:control_code_ .
isac:_datum_	skos:broader	isac:control_code_ .
isac:control_code_	skos:broader	isac:control_code_ .
isac:_code_	skos:broader	isac:control_code_ .
isac:_tab_	skos:broader	isac:control_code_ .
isac:_bel_	skos:broader	isac:control_code_ .