PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • is SPAM. If there is a sudden spike and the document is not linked to or from an authoritative or trusted source, like a news article, then a document may be considered as SPAM. ??? Try to get links from trusted news and authoritative sites.
http://www.w3.org/ns/prov#wasQuotedFrom
  • docstoc.com