@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_column_	skos:broader	isac:_sqlite_ .
isac:_integer_	skos:broader	isac:_sqlite_ .
isac:_postgresql_	skos:broader	isac:_sqlite_ .
isac:_sqlite_	skos:broader	isac:_sqlite_ .