PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Some of these conditions are primary sleep disorders, such as sleep apnea and periodic limb movement disorder, while others are due to disorders that may result in poor sleep, such as chronic fatigue syndrome or depression.
http://www.w3.org/ns/prov#wasQuotedFrom
  • netwellness.org