http://www.w3.org/TR/rdf-syntax-grammar http://www.openarchives.org/ore/terms prov_wasDerivedFrom prov_wasInformedBy prov_used prov_generated prov_generatedByProgram prov_generatedByExecution prov_generatedByUser prov_usedByProgram prov_usedByExecution prov_usedByUser prov_wasExecutedByExecution prov_wasExecutedByUser prov_hasSources prov_hasDerivations prov_instanceOfClass