@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_oil_	skos:broader	isac:commodity_export_ .
isac:_coal_	skos:broader	isac:commodity_export_ .
isac:_soybean_	skos:broader	isac:commodity_export_ .
isac:_copper_	skos:broader	isac:commodity_export_ .
isac:_gas_	skos:broader	isac:commodity_export_ .
isac:iron_ore_	skos:broader	isac:commodity_export_ .
isac:_lumber_	skos:broader	isac:commodity_export_ .