<http://ns.inria.fr/covid19/PMC7356205#body_text>	<http://purl.org/dc/terms/subject>	"Free science software" .
<http://ns.inria.fr/covid19/PMC7356205#body_text>	<http://purl.org/dc/terms/subject>	"Impact of the COVID-19 pandemic" .
<http://ns.inria.fr/covid19/PMC7356205#body_text>	<http://purl.org/dc/terms/subject>	"G20 nations" .