<http://ns.inria.fr/covid19/PMC7271143#body_text>	<http://purl.org/dc/terms/subject>	"Patent law" .
<http://ns.inria.fr/covid19/PMC7271143#body_text>	<http://purl.org/dc/terms/subject>	"Gambling in Japan" .
<http://ns.inria.fr/covid19/PMC7271143#body_text>	<http://purl.org/dc/terms/subject>	"Differential equations" .