<http://ns.inria.fr/covid19/PMC5231386#body_text>	<http://purl.org/dc/terms/subject>	"Historical regions" .
<http://ns.inria.fr/covid19/PMC5231386#body_text>	<http://purl.org/dc/terms/subject>	"Philosophical theories" .
<http://ns.inria.fr/covid19/PMC5231386#body_text>	<http://purl.org/dc/terms/subject>	"United Aircraft Corporation" .