PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, certain disadvantages exist in such a system, including the fact that in intentionally changing the vibration directions of the focused components, a portion of the diffused rays is also transmitted by the retardation elements and its polarizing direction is undesirably rotated also.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com