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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	Welcome to History, your question is a bit off topic as you are not allowed, among many things defined in the FAQ, to ask for reference material, so, it may have to be closed.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com