PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Search engines, especially Google, have grown increasingly savvy in dishing up results for plural and singular keywords in their regular results, and this trend is likely to influence online press releases as well.
http://www.w3.org/ns/prov#wasQuotedFrom
  • searchmarketingstandard.com