About: http://webisa.webdatacommons.org/424985257

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 read this as saying that a version other than 4 or 6 should be an error, and not ignored as if not set.
http://www.w3.org/ns/prov#wasQuotedFrom	gossamer-threads.com