About: http://webisa.webdatacommons.org/254724427

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Raw materials are materials such as iron ore * * * [and] waste products * * * which are used in the manufacturing process to produce the steel * * * products" (48 FR 53099, 53103).
http://www.w3.org/ns/prov#wasQuotedFrom	dot.gov