<http://ns.inria.fr/covid19/PMC7111317#body_text>	<http://purl.org/dc/terms/subject>	"Cities in Virginia" .
<http://ns.inria.fr/covid19/PMC7111317#body_text>	<http://purl.org/dc/terms/subject>	"Independent cities in the United States" .
<http://ns.inria.fr/covid19/PMC7111317#body_text>	<http://purl.org/dc/terms/subject>	"1835 in science" .