@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:digital_signature_	skos:broader	isac:hash_code_ .
isac:_datum_	skos:broader	isac:hash_code_ .
isac:_example_	skos:broader	isac:hash_code_ .
isac:_object_	skos:broader	isac:hash_code_ .
isac:_checksum_	skos:broader	isac:hash_code_ .