Assertion: alumina | /r/HasProperty | key inputs
Facets:
value: to the smelting process
type: TRANSITIVE-OBJECT
Source sentences:
text: Alumina (Al 2 O 3 ), aluminium fluoride (AlF 3 ) and baked anodes are the key inputs to the smelting process; other strategic input materials include pot lining materials (cathode carbon), refractory items and steel.