PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Engineers today use screws in many engineering applications and designs such as drilling rigs that bring up oil, dirt or water.
http://www.w3.org/ns/prov#wasQuotedFrom
  • teachengineering.org