_:vb15433	<http://www.w3.org/2002/07/owl#onProperty>	<http://www.openlinksw.com/schemas/xbrl/explanationOfRiskFreeRateUsedAsInputValue> .
_:vb15433	<http://www.w3.org/2002/07/owl#cardinality>	"1" .
_:vb15433	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Restriction> .