PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Compressed air often is an expensive energy source because of losses due to leaks, pressure drops, and contamination.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thefabricator.com