Assertion: thorium | /r/RelatedTo | niobium
Facets:
value: usually
type: DEGREE
value: in these deposits
type: LOCATION
value: invariably
type: MANNER
Source sentences:
text: Thorium is invariably associated with rare-earth elements or rare metals like niobium, tantalum and zirconium.
text: In these deposits, thorium is usually associated with other commodities such as rare earths, zirconium, niobium, tantalum and other elements.
text: In these deposits, thorium is usually associated with other commodities such as rare earths, zirconium, niobium, tantalum and other elements.