PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Tantalum from coltan is used to manufacture electronic capacitors, used in consumer electronics products such as cell phones, DVD players, video game systems and computers.It is therefore a vital component in the capacitors that control current flow in cell phone circuit boards.
http://www.w3.org/ns/prov#wasQuotedFrom
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