PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • There is an expires meta tag that looks somewhat like <META HTTP-EQUIV=expires" CONTENT=Wed, 26 Feb 1997 08:21:57 GMT>So should Google and other engines use this data to determine if a page should not be in the top results?
http://www.w3.org/ns/prov#wasQuotedFrom
  • seroundtable.com