PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This fitful sleep cycle can repeat many times an hour over the course of a night, and its cumulative effects can lead to serious health problems, including high blood pressure and heart failure.
http://www.w3.org/ns/prov#wasQuotedFrom
  • startribune.com