. . _:vb812013 "\r\n # Relation \r\n\r\n PREFIX : <#>\r\n CONSTRUCT { ?offer ?this }\r\n\r\n WHERE\r\n {\r\n {\r\n SELECT ?offer \r\n # FROM \r\n {\r\n ?offer a schema:Offer ;\r\n schema:validFrom ?vfrom ; \r\n schema:validThrough ?vthrough . \r\n FILTER(?vfrom <= bif:curutcdatetime() and ?vthrough >= bif:curutcdatetime()) . \r\n }\r\n }\r\n }\r\n " . _:vb812013 . "Offer Class" . . _:vb812013 . . . . "Instances of this Class are subjects of an Property generated by an Inference Rule" . . .