<http://webisa.webdatacommons.org/prov/75993280>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/399829848> .
<http://webisa.webdatacommons.org/399829848>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<h2odistributors.com> .
<http://webisa.webdatacommons.org/399829848>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/399829848>	<http://www.w3.org/ns/prov#value>	"Nitrites are a salt or ester anion of nitrous acid, which can be naturally or artificially occurring in groundwater." .