About: http://webisa.webdatacommons.org/16221817

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 have posted on my blog in more detail and thanks for including the link in your post.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com