About: http://webisa.webdatacommons.org/146924775

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	The production of steel involves heating coal, limestone, iron ore, and other minerals together until liquid steel forms.
http://www.w3.org/ns/prov#wasQuotedFrom	schoolmediainteractive.com