About: http://webisa.webdatacommons.org/282401845

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	As someone who has used those systems I can tell you that they are near totally worthless except perhaps to lawyers (malpractice lawers buy these as well).
http://www.w3.org/ns/prov#wasQuotedFrom	pjmedia.com