About: http://webisa.webdatacommons.org/437089544

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	Where calcium is involved, however, reductions are small, and practitioners find lime or other materials must be added at close to recommended rates.
http://www.w3.org/ns/prov#wasQuotedFrom	earthlink.net