PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • At power-line frequencies, the standard seeks to restrict the induced electric current in the retina or other sensitive tissues below a given threshold to make sure that people do not suffer muscle spasms or "see stars (for more on this latter phenomenon look up phosphenes).
http://www.w3.org/ns/prov#wasQuotedFrom
  • microwavenews.com