PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Freight railroads have invested more than $460 billion since 1980 to maintain and improve their tracks, bridges, tunnels, locomotives, freight cars, and other infrastructure and equipment.
http://www.w3.org/ns/prov#wasQuotedFrom
  • investopedia.com