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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	Oct 21, 2009 By Kristen Gerencher The annual ritual of fending off the flu is more complicated than usual this fall as Americans weigh the opportunity to receive two vaccines to protect against different types of influenza.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org