About: http://webisa.webdatacommons.org/446587612

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	Common impurities include metal salts and oxides, including copper, iron, calcium and lead,83 and/or harmful bacteria, such as Vibrio.
http://www.w3.org/ns/prov#wasQuotedFrom	fuhz.com