Assertion: polonium's property | /r/HasSubevent | its use
Facets:
value: in nuclear power plants
type: LOCATION
value: in nuclear weapons
type: OTHER
Source sentences:
text: The nuclear properties of plutonium-239, as well as the ability to produce large amounts of nearly pure 239Pu more cheaply than highly enriched weapons-grade uranium-235, led to its use in nuclear weapons and nuclear power plants.