@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:synthetic_rubber_	skos:broader	isac:_epdm_ .
isac:_polypropylene_	skos:broader	isac:_epdm_ .
isac:_rubber_	skos:broader	isac:_epdm_ .
isac:_gasket_	skos:broader	isac:_epdm_ .
isac:_epdm_	skos:broader	isac:_epdm_ .