<http://ns.inria.fr/covid19/PMC7268970#body_text>	<http://purl.org/dc/terms/subject>	"Metropolitan areas of Egypt" .
<http://ns.inria.fr/covid19/PMC7268970#body_text>	<http://purl.org/dc/terms/subject>	"Orthomyxoviridae" .
<http://ns.inria.fr/covid19/PMC7268970#body_text>	<http://purl.org/dc/terms/subject>	"Sugar acids" .