About: http://webisa.webdatacommons.org/67110766

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	With the C++0x approach you just have to ensure (lhs+rhs) operation is defined for each pair of types T and U... but you would have to do that with prior versions of C++ anyway.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com