PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The research indicates, for example, that people (and many other living things) need bright days and dark nights to maintain healthy circadian rhythms and proper levels of certain hormones such as melatonin.
http://www.w3.org/ns/prov#wasQuotedFrom
  • buildings.com