PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This drug is an opioid analgesic and though not Morphine it acts in much the same way.
http://www.w3.org/ns/prov#wasQuotedFrom
  • heritagedaily.com