PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The vacuum cleaner headlight system of the present invention provides substantially uniform illumination on the floor in front of a vacuum cleaner, as close as possible to the vacuum cleaner, by using a light pipe to horizontally distribute light from a light source, such as a bulb, within the vacuum cleaner and to project it from the front of the vacuum cleaner onto the floor.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.co.uk