PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A life crisis or stressA change in the sleep environment, including factors such as noise, light, or temperatureSleep/wake schedule problems, such as those due to jet lag or temporary shift workSide effects of medication
http://www.w3.org/ns/prov#wasQuotedFrom
  • bidmc.org