Assertion: conductor | /r/CapableOf | use throttle
Facets:
value: to operate the train
type: PURPOSE
Source sentences:
text: Conductors use a variety of controls, such as throttles and airbrakes, to operate the train
text: Conductors use a variety of controls, such as throttles and airbrakes, to operate the train
text: Conductors use a variety of controls, such as throttles and airbrakes, to operate the train