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<http://webisa.webdatacommons.org/397556581>	<http://www.w3.org/ns/prov#value>	"Chlorine, alum and other chemicals are added to the water to kill germs, improve taste and odour, and start to settle solids in the water." .
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<http://webisa.webdatacommons.org/397556581>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .