About: http://webisa.webdatacommons.org/219906189

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 far as i Know this is mainly ignored by google (unless you starting to do this on a large scale and then it will back-fire) and a waste of your time.
http://www.w3.org/ns/prov#wasQuotedFrom	moz.com