About: http://webisa.webdatacommons.org/221804103

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	Concepts" were a proposed feature for the next version of C++, but they were (relatively) recently voted out of the standard so will not resurface for quote some time now.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com