PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Frequent headaches, insomnia or heart palpitations may also be experienced, including hallucinations, delusions, agitation and confusion.
http://www.w3.org/ns/prov#wasQuotedFrom
  • symptomstreatment.org