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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	into s, r is a Forward Sequence of characters, n and x are Integral Constants,
http://www.w3.org/ns/prov#wasQuotedFrom	boost.org