http://dbpedia.org/resource/Joseph_Walker_(Massachusetts_speaker)__Tenure__1 <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:office xsd:string Speaker of the Massachusetts House of Representatives rdf:type <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:TimePeriod dbpedia-owl:Tenure dbpedia-owl:predecessor <http://dbpedia.org/resource/John_N._Cole> dbpedia-owl:successor <http://dbpedia.org/resource/Grafton_D._Cushing> data from the linked data cloud