PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • What the company did here is a throwback to the 1920s era of ???yellow dog contracts??? [requiring workers to sign promises never to join a union or not get hired] which were made illegal by the Norris-LaGuardia Act of 1932, combined with modern union-busting tactics like captive-audience meetings and DVDs filled with threats.???
http://www.w3.org/ns/prov#wasQuotedFrom
  • tcworkerscenter.org