http://dbpedia.org/resource/Steven_C._Walker__Tenure__1 <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> rdf:type <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:TimePeriod dbpedia-owl:Tenure dbpedia-owl:president dbpedia:Joe_Biden dbpedia:Donald_Trump dbpedia-owl:predecessor dbpedia:Natalie_E._Brown data from the linked data cloud