<http://ns.inria.fr/covid19/PMC7130730#body_text>	<http://purl.org/dc/terms/subject>	"Metropolitan areas of China" .
<http://ns.inria.fr/covid19/PMC7130730#body_text>	<http://purl.org/dc/terms/subject>	"History of the 'Ndrangheta" .
<http://ns.inria.fr/covid19/PMC7130730#body_text>	<http://purl.org/dc/terms/subject>	"Organized crime terminology" .