PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • influenza that caused several waves of pandemic in 1918-1919, resulting in more than 20 million deaths worldwide; it was particularly severe in Spain (hence the name), but now is thought to have originated in the U.S. As a form of swine influenza.
http://www.w3.org/ns/prov#wasQuotedFrom
  • biology-online.org