About: http://webisa.webdatacommons.org/329640367

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	If I remember correcltly, the vacuum gauge needle will stay steady if the rings are good, and will bounce back and forth if there is a problem.
http://www.w3.org/ns/prov#wasQuotedFrom	hotrodders.com