http://dbpedia.org/resource/Edward_Gierek__Tenure__1 <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:end xsd:date 1980-09-06 dbpedia-owl:start xsd:date 1970-12-20 rdf:type <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:TimePeriod dbpedia-owl:Tenure dbpedia-owl:predecessor <http://dbpedia.org/resource/Władysław_Gomułka> dbpedia-owl:successor <http://dbpedia.org/resource/Stanisław_Kania> data from the linked data cloud