About: http://webisa.webdatacommons.org/255360689

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	Lead occurs naturally in the earth's crust and combines with other elements, such as oxygen and sulfur.
http://www.w3.org/ns/prov#wasQuotedFrom	eoearth.org