PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It is still common for engineers and architects to work out the details of a concept, so called Sketches" on paper drawings before going to CAD. Even in the heyday of hand drafted blueprint technology technical workers found that working with a sketch was an aid to clear thinking.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newworldencyclopedia.org