<http://ns.inria.fr/covid19/PMC7376332#body_text>	<http://purl.org/dc/terms/subject>	"Regions of Belgium" .
<http://ns.inria.fr/covid19/PMC7376332#body_text>	<http://purl.org/dc/terms/subject>	"Behavioural sciences" .
<http://ns.inria.fr/covid19/PMC7376332#body_text>	<http://purl.org/dc/terms/subject>	"Product testing" .