PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Any surface contamination, notably fingerprints, can damage the quartz envelope when it is heated, by causing the quartz to change from its vitreous form into a weaker, crystalline form which leaks gas.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newworldencyclopedia.org