http://dbpedia.org/resource/William_D._McElroy__Tenure__2 <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:title rdf:langString Director of theNational Science Foundation 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> dbpedia-owl:predecessor <http://dbpedia.org/resource/Leland_J._Haworth> dbpedia-owl:successor <http://dbpedia.org/resource/Guyford_Stever> data from the linked data cloud