Assertion: ore's iron | /r/ObjectUse | used in steel-making
Facets:
Source sentences:
text: Woodward Iron, Sloss Sheffield Steel and Iron Company, and Thomas Works operated blast-furnace plants that produced pig-iron, which was of a lower grade than the iron used in steel-making.
text: Woodward Iron, Sloss Sheffield Steel and Iron Company, and Thomas Works operated blast-furnace plants that produced pig-iron, which was of a lower grade than the iron used in steel-making.