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<http://webisa.webdatacommons.org/prov/15196468>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/402413642> .
<http://webisa.webdatacommons.org/402413642>	<http://www.w3.org/ns/prov#value>	"In natural and drinking water these are mainly carbonates, chlorides and sulphates of calcium, magnesium, sodium and potassium." .
<http://webisa.webdatacommons.org/402413642>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<myronlmeters.com> .