About: http://webisa.webdatacommons.org/156290750

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	I could not think of anything equally descriptive, except maybe using "subclass" instead of extend, but that kind of clashes with "superclass" which returns an existing thing rather than creating a new thing.
http://www.w3.org/ns/prov#wasQuotedFrom	wowace.com