Assertion: pulley | /r/HasProperty | important aspect
Facets:
value: for operations
type: PURPOSE
value: in the space age
type: TEMPORAL
Source sentences:
text: Even in the space age, pulleys have been an important aspect for the construction and operations of spacecraft and aircraft.
text: Whether your goal is looks, efficiency, or merely getting your engine running, pulleys are critical parts, and there are important factors that need to be considered when selecting them.