_:vb57471	<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>	<http://www.w3.org/2002/12/cal/ical#Value_DATE> .
_:vb57470	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
_:vb57472	<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>	_:vb57471 .
_:vb57470	<http://www.w3.org/2002/07/owl#unionOf>	_:vb57473 .
_:vb57473	<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>	_:vb57472 .
_:vb57472	<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>	<http://www.w3.org/2002/12/cal/ical#Value_DATE> .
_:vb57471	<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#nil> .
_:vb57473	<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>	<http://www.w3.org/2002/12/cal/ical#Value_DURATION> .