<http://ns.inria.fr/covid19/PMC7256378#body_text>	<http://purl.org/dc/terms/subject>	"Member states of Mercosur" .
<http://ns.inria.fr/covid19/PMC7256378#body_text>	<http://purl.org/dc/terms/subject>	"Computer access control" .
<http://ns.inria.fr/covid19/PMC7256378#body_text>	<http://purl.org/dc/terms/subject>	"Countries in South America" .