PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Search advertising is an example of a very effective media type that simply does not have enough inventory to effectively drive enough sales for any one advertiser to replace the rest of the media spend.
http://www.w3.org/ns/prov#wasQuotedFrom
  • clickz.com