<http://ns.inria.fr/covid19/PMC7123693#body_text>	<http://purl.org/dc/terms/subject>	"Materialists" .
<http://ns.inria.fr/covid19/PMC7123693#body_text>	<http://purl.org/dc/terms/subject>	"Outlines of sciences" .
<http://ns.inria.fr/covid19/PMC7123693#body_text>	<http://purl.org/dc/terms/subject>	"Physical chemistry" .