PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • From the 1950???s through the 1970???s, however, drug treatment programs focused primarily on heroin and other opiates and were operated separately from programs focusing on alcohol.
http://www.w3.org/ns/prov#wasQuotedFrom
  • kolmac.com