About: http://webisa.webdatacommons.org/100943045

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 slag contains iron, calcium, silicon oxide, and other minor oxides such as manganese, lead, or zinc oxide.
http://www.w3.org/ns/prov#wasQuotedFrom	ercweb.com