http://dbpedia.org/resource/Blaine_Calkins__Tenure__1 <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:start xsd:date 2006-01-23 rdf:type <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:TimePeriod dbpedia-owl:Tenure dbpedia-owl:predecessor dbpedia:Dale_Johnston data from the linked data cloud