PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • On Earth, light can become polarized by scattering off surfaces, such as a car or pond, causing the glare that polarized sunglasses are designed to reduce.
http://www.w3.org/ns/prov#wasQuotedFrom
  • xinhuanet.com