About: http://webisa.webdatacommons.org/49225646

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	As those skilled in the an appreciate, by-products of iron and steel making operations include reverts containing iron, carbon, impurities such as lead and zinc, and alkalis including potassium and sodium.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com