About: http://webisa.webdatacommons.org/212044661

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	The easiest to use is probably CString, but incurs the overhead of either including MFC's implementation or ATL's implementation of it. std::string's, as others have mentioned are an alternative.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com