About: http://webisa.webdatacommons.org/359184328

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	One or more speakers or other warning or signaling devices, e.g., headlights, may be connected to the control module, as is a suitable power source such as a battery.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com