Assertion: polonium | /r/ObjectUse | used as a power source
Facets:
value: in the oil industry
type: LOCATION
value: for other spacecraft
type: TRANSITIVE-OBJECT
value: in nuclear weapons production
type: TEMPORAL
value: for satellites
type: PURPOSE
Source sentences:
text: Polonium has been used as a trigger for nuclear weapons, and as a power source for satellites and other spacecraft.
text: It's also used as a power supply in nuclear weapons production and in the oil industry.