@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_signature_	skos:broader	isac:post_work_ .
isac:color_correction_	skos:broader	isac:post_work_ .
isac:lens_flare_	skos:broader	isac:post_work_ .