About: http://webisa.webdatacommons.org/401161163

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	When an operating engine is operating under high loads, such as during acceleration, its manifold vacuum is low, which in turn pulls the vacuum switch SW1 of switch 32 to its normally open position.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com