PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Migraine is a disabling headache, characterized by moderate to severe head pain, usually
http://www.w3.org/ns/prov#wasQuotedFrom
  • thejournalofheadacheandpain.com