Assertion: plutonium | /r/HasProperty | stored
Facets:
Source sentences:
text: The most common form of plutonium in the environment is plutonium oxide and it is in the form of oxide powder that most Pu from reprocessing or military production is stored.
text: When they leave the area where plutonium is stored or used, they must pass through a portal equipped to detect the radiation emitted by plutonium.