PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Iron from a blast furnace (pig iron) is an alloy of iron and carbon (about 4%), along with smaller quantities of silicon, manganese, phosphorus, sulphur and other elements.
http://www.w3.org/ns/prov#wasQuotedFrom
  • steelbb.com