PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Because Alzheimer's disease is a progressive disorder, much research has focused on developing ways to diagnose the disease at its earliest stages.
http://www.w3.org/ns/prov#wasQuotedFrom
  • alz.org