PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • urface, the third surface R3 is a reflecting surface tilted relatively to the second surface R2, the fourth surface R4 and the fifth surface R5 each are a reflecting surface shifted and tilted relatively to the respective preceding surface, and the sixth surface R6 is a refracting surface shifted and tilted relatively to the fifth surface R5.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com