Resources die naar dezelfde URI linken

SELECT ?property (COUNT(?property) AS ?propertyCount WHERE { ?s ?property ?o } GROUP BY ?property

PREFIX rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns# SELECT (COUNT(?erfgoedSubject) AS ?aantalErfgoedSubjecten) WHERE { ?erfgoedSubject rdf:type ?obj . }