About: http://webisa.webdatacommons.org/385233625

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	There have been plenty of languages specified without an implementation, e.g. Algol 60 was supposed to be a language for writing up algorithms, not to be implemented.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com