PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Experimental subjects hooked to an EEG do not show a discrete change from drowsy to sleep; it is very gradual.At the threshold between sleep and waking consciousness is a drowsy condition known as the hypnogogic state.
http://www.w3.org/ns/prov#wasQuotedFrom
  • spiralnature.com