About: http://webisa.webdatacommons.org/215873520

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 apparatus uses sonar to detect a distance from the rear of a vehicle to a structure such as a loading dock to which the vehicle is being backed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk