PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • By assigning an opacity value of less than 100% to a page element such as an image or a block of text, you can achieve a transparent effect.
http://www.w3.org/ns/prov#wasQuotedFrom
  • codeproject.com