PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • 2)The ores and minerals are mainly magnetite and hematite, partly martite and semi-martite.
http://www.w3.org/ns/prov#wasQuotedFrom
  • chinatigergroup.com