@prefix rdf: . @prefix pwdr: . @prefix owl: . pwdr:supportedby rdf:type owl:AnnotationProperty , rdf:Property . @prefix rdfs: . pwdr:supportedby rdfs:comment "A property that links a POWDER document to some other data source that supports the descriptions provided."@en . @prefix ns4: . pwdr:supportedby rdfs:isDefinedBy ns4:supportedBy ; rdfs:label "supported by"@en . @prefix ns5: . pwdr:supportedby pwdr:describedby ns5:powder-s .