Assertion: astronomer | /r/CapableOf | spend many hours
Facets:
value: in order to have all the information
type: PURPOSE
Source sentences:
text: Astronomers who make observations with ground-based telescopes may spend many hours working in observatories; this work usually involves travel to remote locations and may require working at night.
text: Astronomers may spend hours or even days scanning an object in order to have all the information they need.
text: Astronomers who make observations with ground-based telescopes may spend many hours working in observatories.