Assertion: iron | /r/HasProperty | made into steel
Facets:
Source sentences:
text: Almost all ironworks are today part of steel mills, and almost all iron is made into steel.
text: In the United States, much of the iron was taken from the ground in Minnesota and then sent by ship to Indiana and Michigan where it was made into steel.
text: Almost all ironworks are today part of steel mills, and almost all iron is made into steel.