PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Its original color is bluish white and is commonly extracted from galena and is mostly found in ore along with other elements such as zinc, copper and silver.
http://www.w3.org/ns/prov#wasQuotedFrom
  • allthatisinteresting.net