About: http://webisa.webdatacommons.org/448212329

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	According to the National Safety Council, lead is a toxic metal that can damage organs, the nervous system, hearing, and mental development.
http://www.w3.org/ns/prov#wasQuotedFrom	education.com