Assertion: aluminum's form | /r/HasProperty | smelted into aluminum
Facets:
Source sentences:
text: Pure forms of the metal must first be chemically refined into an alumina and then smelted into aluminum through the Hall–Héroult electrolytic reduction process.
text: Pure forms of the metal must first be chemically refined into an alumina and then smelted into aluminum through the Hall–Héroult electrolytic reduction process.