About: http://webisa.webdatacommons.org/283384193

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	They kill micro organisms in water to prevent dysentery, diarrhoea, cholera and other water borne diseases.
http://www.w3.org/ns/prov#wasQuotedFrom	oasiswaterpurification.co.uk