PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The antennas disposed on one side of the measurand are spaced from each other by a distance of n???????/4, wherein n is an integer and ?? is the wavelength of the microwave, in a direction substantially perpendicular to the plane of the measurand.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com