Assertion: iron's carbon | /r/HasProperty | coke
Facets:
Source sentences:
text: Iron is made in large factories called ironworks by reducing hematite with carbon (coke).
text: The metal is extracted by smelting with carbon (coke) and limestone.
text: Cast iron can be made directly from the molten pig iron or by re-melting pig iron, often along with substantial quantities of iron, steel, limestone, carbon (coke) and taking various steps to remove undesirable contaminants.
text: Blast furnace Iron is made in large factories called ironworks by reducing hematite with carbon (coke).