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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 you haven???t done so, write to the President and other elected representatives and urge them to support planetary science: http://planetary.org/get-involved/be-a-space-advocate/
http://www.w3.org/ns/prov#wasQuotedFrom	galileospendulum.org