PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Cognitive-enhancing drugs are normally prescribed to treat medical conditions such as Alzheimer's disease, but some people are now using them to try to improve their memory and help them study, often without knowing the medical risks.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bbc.co.uk