http://dbpedia.org/resource/Andries_Treurnicht__Tenure__2 <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:office xsd:string Leader of the Opposition rdf:type <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:TimePeriod dbpedia-owl:Tenure dbpedia-owl:predecessor dbpedia:Frederik_van_Zyl_Slabbert dbpedia-owl:successor dbpedia:Ferdinand_Hartzenberg data from the linked data cloud