PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Boilers and pressure vessels were an innovation that advanced long-range transportation and heavy lifting in ways that had never been possible before.
http://www.w3.org/ns/prov#wasQuotedFrom
  • asme.org