Assertion: thorium | /r/CapableOf | retain its lustre
Facets:
value: for several months
type: TEMPORAL
Source sentences:
text: When pure, thorium is a silvery white metal that retains its lustre for several months.
text: When pure, thorium is a silvery white metal which is air-stable and retains its lustre for several months.
text: Thorium is a silvery white metal that retains its lustre for several months.
text: When pure, thorium is a silvery white metal that retains its lustre for several months.