PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Often, conditions such as the flu or other illnesses, anxiety or stress, or a poor diet or sleep habits can cause both a headache and fatigue.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisegeekhealth.com