@prefix rdf: . @prefix ns1: . @prefix ns2: . ns1:this rdf:type ns2:Virtuoso8Pricing . @prefix schema: . ns1:this rdf:type schema:UnitPriceSpecification , ns2:RetailPriceSpecification . @prefix xsd: . ns1:this schema:validFrom "2019-03-28T23:59:59Z"^^xsd:dateTime ; schema:validThrough "2019-12-31T23:59:59Z"^^xsd:dateTime , "2019-10-31T23:59:59Z"^^xsd:dateTime , "2020-03-31T23:59:59Z"^^xsd:dateTime . @prefix pwdr: . ns1:this pwdr:describedby , , . @prefix ns6: . ns1:this pwdr:describedby ns6:official . @prefix ns7: . ns1:this pwdr:describedby ns7:official . @prefix ns8: . ns1:this pwdr:describedby ns8:shop ; schema:name "Software License : Virtuoso 8.3 Personal Application Development License For Linux (Server) Operating Systems -- Retail Offer Unit Price: 999.99"^^ , "Software License : Virtuoso 8.3 Personal Application Development License For Linux (Server) Operating Systems -- Retail Offer Unit Price: 999.99"^^xsd:string ; schema:priceCurrency "USD"^^xsd:string ; schema:price 999.99 .