About: http://webisa.webdatacommons.org/186149427

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 can not think of a good HTML attribute example right now, but there are plenty of examples of the latter two types that are only supported by more modern browsers.
http://www.w3.org/ns/prov#wasQuotedFrom	codingforums.com