PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Several studies have linked poor sleep and increased risk of health problems, including obesity, stroke, heart disease and certain cancers.
http://www.w3.org/ns/prov#wasQuotedFrom
  • postcrescent.com