@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_oil_	skos:broader	<http://webisa.webdatacommons.org/concept/basic+raw_material_> .
isac:_coal_	skos:broader	<http://webisa.webdatacommons.org/concept/basic+raw_material_> .
isac:_cardboard_	skos:broader	<http://webisa.webdatacommons.org/concept/basic+raw_material_> .
isac:_metal_	skos:broader	<http://webisa.webdatacommons.org/concept/basic+raw_material_> .
isac:iron_ore_	skos:broader	<http://webisa.webdatacommons.org/concept/basic+raw_material_> .
isac:_mineral_	skos:broader	<http://webisa.webdatacommons.org/concept/basic+raw_material_> .
isac:_wood_	skos:broader	<http://webisa.webdatacommons.org/concept/basic+raw_material_> .
isac:_steel_	skos:broader	<http://webisa.webdatacommons.org/concept/basic+raw_material_> .