PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • To save on production costs, many of them used materials including wood, coal, wood chip and bran coal for fuel instead of using oil, which contributed to the emissions problem in the area.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bayanihan.org