<http://dbpedia.org/resource/Fred_de_Graaf__4>	<http://dbpedia.org/ontology/activeYearsStartDate>	"2011-06-28Z"^^<http://www.w3.org/2001/XMLSchema#date> .
<http://dbpedia.org/resource/Fred_de_Graaf__4>	<http://dbpedia.org/ontology/activeYearsEndDate>	"2013-07-02Z"^^<http://www.w3.org/2001/XMLSchema#date> .
<http://dbpedia.org/resource/Fred_de_Graaf__4>	<http://dbpedia.org/ontology/office>	"President of the Senate of the Netherlands" .