PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • wherein Pr equals the power at which the signal is received from the base station, k is a constant, Pt equals the power at which the signal is transmitted from the base station, d equals the distance between the base station and the point where the signal is received, and n is the attenuation factor.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com