@prefix ns0: . ns0:hasLongFormOf . @prefix rdf: . rdf:type ns0:LongForm . @prefix rdfs: . rdfs:label "Heidelberg-Retina-Tomograph"@en . @prefix owl: . @prefix dbpedia: . owl:sameAs dbpedia:Cluster_of_Differentiation , dbpedia:Cluster_of_differentiation , dbpedia:Cluster_differentiation ; ns0:frequency "3" .