PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • There???s every reason to think the children of farmers would become office workers at a much higher rate between 1880 and 1900 than between 1950 and 1973; the late 19th century was a time of rapid industrial expansion, everyone was leaving farms for city life.
http://www.w3.org/ns/prov#wasQuotedFrom
  • washingtonmonthly.com