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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	If our teeth are made mostly of calcium, why do we use fluoride... http:??? 2 days ago
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com