http://dbpedia.org/resource/Lee_R._Scherer__Tenure__2 <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:title rdf:langString Director of the Dryden Flight Research Center rdf:type <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:TimePeriod dbpedia-owl:Tenure dbpedia-owl:president <http://dbpedia.org/resource/Richard_Nixon> <http://dbpedia.org/resource/Gerald_Ford> data from the linked data cloud