<http://ns.inria.fr/covid19/PMC7304785#title>	<http://purl.org/dc/terms/subject>	"Statistical data types" .
<http://ns.inria.fr/covid19/PMC7304785#title>	<http://purl.org/dc/terms/subject>	"Philosophy of education" .
<http://ns.inria.fr/covid19/PMC7304785#title>	<http://purl.org/dc/terms/subject>	"History of education" .