PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In fields such as homeopathy and acupuncture where there are good placebos, placebo-controlled trials are overwhelmingly negative.
http://www.w3.org/ns/prov#wasQuotedFrom
  • amazon.ca