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Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Combinations of time, aged and other event triggered keys may also be desirable; for example keys may change after ascertain number of accesses, and/or after certain duration of time or absolute point in time.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com