<http://webisa.webdatacommons.org/286063482>	<http://www.w3.org/ns/prov#value>	"er naturally occurring contaminants such as sulphur and fluoride." .
<http://webisa.webdatacommons.org/prov/83979120>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/286063482> .
<http://webisa.webdatacommons.org/prov/65415561>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/286063482> .
<http://webisa.webdatacommons.org/286063482>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<cieh.org> .
<http://webisa.webdatacommons.org/286063482>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .