<http://ns.inria.fr/covid19/PMC7231667#body_text>	<http://purl.org/dc/terms/subject>	"Lists of countries" .
<http://ns.inria.fr/covid19/PMC7231667#body_text>	<http://purl.org/dc/terms/subject>	"Companies based in Boston" .
<http://ns.inria.fr/covid19/PMC7231667#body_text>	<http://purl.org/dc/terms/subject>	"Centers for Disease Control and Prevention" .