PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Careful labor economists routinely monitor all of these variables, including the number of involuntarily part-time workers and the number of discouraged workers.
http://www.w3.org/ns/prov#wasQuotedFrom
  • historynewsnetwork.org