<http://ns.inria.fr/covid19/PMC7340982#body_text>	<http://purl.org/dc/terms/subject>	"Unicode" .
<http://ns.inria.fr/covid19/PMC7340982#body_text>	<http://purl.org/dc/terms/subject>	"Numerical software" .
<http://ns.inria.fr/covid19/PMC7340982#body_text>	<http://purl.org/dc/terms/subject>	"Free learning support software" .