PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Two-phase liquid-gas flow in tubes has been studied in such fields as boilers, electrical generating stations, chemical process plants, and pipelines.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.ca