PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Corrosion degrades electrical ground paths through a chemical interaction between metal and another element, usually air (oxygen), water, salt, or chemicals such as Skydrol.
http://www.w3.org/ns/prov#wasQuotedFrom
  • boeing.com