_:b17933	<http://schema.org/startDate>	"2009-01-01Z"^^<http://www.w3.org/2001/XMLSchema#date> .
_:b17933	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://purl.org/dc/terms/PeriodOfTime> .
_:b17933	<http://schema.org/endDate>	"2012-12-31Z"^^<http://www.w3.org/2001/XMLSchema#date> .