PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Alzheimer???s disease (AD) is the most common form of dementia in the elderly, affecting more than 5 million Americans, among them 600,000 Californians.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ucsd.edu