@prefix rdfs:	<http://www.w3.org/2000/01/rdf-schema#> .
@prefix oplweb:	<http://www.openlinksw.com/schemas/oplweb#> .
@prefix xsd:	<http://www.w3.org/2001/XMLSchema#> .
oplweb:amountOfThisGood	rdfs:range	xsd:double .