Assertion: engine's speed | /r/HasProperty | 3600 revolutions per minute
Facets:
value: with 60 hertz power
type: OTHER
value: in the united states
type: LOCATION
Source sentences:
text: Typical speeds are 3600 revolutions per minute (RPM) in the United States with 60 Hertz power, and 3000 RPM in Europe and other countries with 50 Hertz electric power systems.