PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • His great encyclopedia, Historia Naturalis (Natural History) consisted of 37 volumes derived from about 2000 sources, and contained an estimated 20,000 facts are findings regarding such topics as astronomy, zoology, botany, medicine, and the metallurgy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ufoinfo.com