@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_exhibition_	skos:broader	isac:museum_program_ .
isac:_exhibit_	skos:broader	isac:museum_program_ .
isac:_lecture_	skos:broader	isac:museum_program_ .
isac:_reception_	skos:broader	isac:museum_program_ .