Assertion: plutonium | /r/HasProperty | isolated
Facets:
value: from the building atmosphere
type: LOCATION
value: always
type: DEGREE
value: completely
type: DEGREE
Source sentences:
text: When plutonium is isolated, its appearance may vary, because it has six allotropic forms, meaning that the element has six different structures under normal conditions.
text: During processing, steel and asphalt are handled in open containers, well exposed to the building atmosphere, whereas plutonium is always tightly enclosed and completely isolated from the building atmosphere.