About: http://webisa.webdatacommons.org/162663903

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	where abstract classes here represent the base class of a class cluster[1], providing mainly an interface to build upon.
http://www.w3.org/ns/prov#wasQuotedFrom	digitalmars.com