About: http://webisa.webdatacommons.org/162820981

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	Apart from the fact that many libraries were written before the advent of standard smart pointers, the biggest reason is probably the lack of a standard C++ ABI.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com