About: http://webisa.webdatacommons.org/405282441

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	These lamps each have a light source such as a conventional bulb protected by the front lens 25, each bulb being connected by wires and circuit means, including the switch 13, to batteries contained in the body 12.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com