PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The result of our study suggests that the effect is not associated with the acute mechanism of action of ecstasy because all subjects had a negative urine screen for ecstasy and other drugs such as cocaine, amphetamine/methamphetamine, opiates, and benzodiazepines.
http://www.w3.org/ns/prov#wasQuotedFrom
  • plos.org