About: http://webisa.webdatacommons.org/417002394

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	Identified poisons are heavy metals such as lead, copper, zinc, and nonmetals such as sulfur and halogen compounds.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com