About: http://webisa.webdatacommons.org/328179941

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	Driver Warning Signal?? Mirror from Muth Mirror Systems features a signal to alert the driver of a dump, concrete, or other heavy truck the hopper or bed is in the raised position.
http://www.w3.org/ns/prov#wasQuotedFrom	vehicleservicepros.com