About: http://webisa.webdatacommons.org/178891441

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 rust stains are usually caused by iron or other minerals in the water, (calcium, lime, etc.), sometimes referred to as ???hard water stains???.
http://www.w3.org/ns/prov#wasQuotedFrom	stockpilingmoms.com