PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A collection of astronomy and cosmology articles written for Scientific American, many written by some of the most influential scientists of the 20th century such as Albert Einstein, Francis Crick, Erwin Schr??dinger and Carl Sagan.
http://www.w3.org/ns/prov#wasQuotedFrom
  • umich.edu