<http://ns.inria.fr/covid19/PMC7197740#body_text>	<http://purl.org/dc/terms/subject>	"British black-and-white films" .
<http://ns.inria.fr/covid19/PMC7197740#body_text>	<http://purl.org/dc/terms/subject>	"Kidney" .
<http://ns.inria.fr/covid19/PMC7197740#body_text>	<http://purl.org/dc/terms/subject>	"Dinaric karst formations" .