Assertion: calcium | /r/ObjectUse | used in alloy
Facets:
value: in thorium
type: LOCATION
value: with other metals
type: OTHER
value: in several
type: LOCATION
value: in uranium
type: LOCATION
Source sentences:
text: Calcium is used in alloys with other metals and in purifying zirconium, thorium, uranium and several of the rare-earth metals.