http://dbpedia.org/resource/Teferra_Wolde-Semait__Tenure__2 <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> rdf:type <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval> dbpedia-owl:TimePeriod dbpedia-owl:Tenure dbpedia-owl:president dbpedia:Mengistu_Haile_Mariam data from the linked data cloud