@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_amount_	skos:broader	isac:string_datum_ .
isac:_character_	skos:broader	isac:string_datum_ .
isac:_datum_	skos:broader	isac:string_datum_ .
isac:_field_	skos:broader	isac:string_datum_ .
isac:_variable_	skos:broader	isac:string_datum_ .
isac:_varchar_	skos:broader	isac:string_datum_ .
isac:_nvarchar_	skos:broader	isac:string_datum_ .