About: http://webisa.webdatacommons.org/410402373

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 anaerobic groundwater, common metals such as iron and manganese primarily exist in their soluble forms, Fe2+ and Mn2+.
http://www.w3.org/ns/prov#wasQuotedFrom	wwdmag.com