@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_on_	skos:broader	isac:function_of_ .
isac:_output_	skos:broader	isac:function_of_ .
isac:_turn_	skos:broader	isac:function_of_ .
isac:_material_	skos:broader	isac:function_of_ .