About: http://webisa.webdatacommons.org/17364528

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	implementations, such as boost::shared_ptr<T> or std::tr1::shared_ptr<T>.
http://www.w3.org/ns/prov#wasQuotedFrom	sourceforge.net