About: http://webisa.webdatacommons.org/327048921

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	The stains are probably due to iron, copper and other trace minerals and are rarely removed by simply adding a metal treatment.
http://www.w3.org/ns/prov#wasQuotedFrom	askalanaquestion.com