About: http://webisa.webdatacommons.org/422001834

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	??? In stage 13, Water flows through another ion exchange resin, reducing heavy metals such as lead, copper, aluminum, and water hardness.
http://www.w3.org/ns/prov#wasQuotedFrom	discovertechnology.com