_:b61609018	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/time#DurationDescription> .
_:b61609018	<http://www.w3.org/2000/01/rdf-schema#label>	"years" .
_:b61609017	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://purl.org/dc/terms/Frequency> .
_:b61609018	<http://www.w3.org/2006/time#years>	"1"^^<http://www.w3.org/2001/XMLSchema#integer> .
_:b61609017	<http://www.w3.org/1999/02/22-rdf-syntax-ns#value>	_:b61609018 .