@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:bar_graph_	skos:broader	isac:visual_format_ .
isac:_graph_	skos:broader	isac:visual_format_ .
isac:_picture_	skos:broader	isac:visual_format_ .
isac:_video_	skos:broader	isac:visual_format_ .
isac:_map_	skos:broader	isac:visual_format_ .
isac:_graphic_	skos:broader	isac:visual_format_ .
isac:_text_	skos:broader	isac:visual_format_ .
isac:_film_	skos:broader	isac:visual_format_ .
isac:_diagram_	skos:broader	isac:visual_format_ .
isac:picture_book_	skos:broader	isac:visual_format_ .