PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, this is often not the case, due to either non-sinusoidal waveforms???typical of electronics, including most CFLs???or to voltage and current waveforms being out of phase???typical of motor-driven loads, including things such as refrigerators and furnaces.
http://www.w3.org/ns/prov#wasQuotedFrom
  • homeenergy.org