<http://ns.inria.fr/covid19/PMC7351412#body_text>	<http://purl.org/dc/terms/subject>	"Trade unions" .
<http://ns.inria.fr/covid19/PMC7351412#body_text>	<http://purl.org/dc/terms/subject>	"Novels by Albert Camus" .
<http://ns.inria.fr/covid19/PMC7351412#body_text>	<http://purl.org/dc/terms/subject>	"Demons" .