PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It uses a range of ferrous and non-ferrous materials such as stainless steel, carbon steel, low alloy steel and aluminum.
http://www.w3.org/ns/prov#wasQuotedFrom
  • gurufocus.com