PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • But early in the 19th century, Thomas Young, in England, and the Frenchman Augustin Fresnel established an alternative theory, that light is a wave: it can bend around sharp edges and spread out through two narrow slits in a screen to produce an interference pattern, in the same way that ripples on a pond interfere with one another.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newscientist.com