About: http://webisa.webdatacommons.org/138478622

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	The cover switch 233 may take the form of a contact switch or sensor such as a proximity sensor, light sensor, infrared sensor, pressure sensor, or magnetic sensor such as a Reed switch.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk