About: http://webisa.webdatacommons.org/9563018

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	And just the fact that there is a rotating mechanism with bearings, balls, shafts, and wheels means the MTBF is less that if they were not needed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com