<http://ns.inria.fr/covid19/PMC7123634#title>	<http://purl.org/dc/terms/subject>	"Philosophical theories" .
<http://ns.inria.fr/covid19/PMC7123634#title>	<http://purl.org/dc/terms/subject>	"Logical consequence" .
<http://ns.inria.fr/covid19/PMC7123634#title>	<http://purl.org/dc/terms/subject>	"Ancient Greek metaphysics" .