PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Coltan is a key mineral that, once refined, becomes tantalum???a significant ingredient of capacitors, which are used in an expansive array of small electronic devices such as cell phones, laptops, pagers, and other electronic devices.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wordpress.com