About: http://webisa.webdatacommons.org/279547857

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	However, during such additional processing steps, impurities can be introduced into the water, such as a weak buffer of greater than pH 5.0.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com