http://dbpedia.org/resource/Jacob_R._Eckfeldt__Tenure__1 <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:office xsd:string United States Mint Assayer rdf:type <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:TimePeriod dbpedia-owl:Tenure dbpedia-owl:president <http://dbpedia.org/resource/Andrew_Jackson> data from the linked data cloud