PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, continual free running sleep is always the best option for those who are absolutely unable to balance the cycle and those who can afford the sleep schedule that is hard to reconcile with the rhythm of the outside world.
http://www.w3.org/ns/prov#wasQuotedFrom
  • supermemo.com