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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	Guards are a conditional expression placed in square brackets and indicate that the message is sent only if the guard is true.
http://www.w3.org/ns/prov#wasQuotedFrom	informit.com