<http://ns.inria.fr/covid19/PMC7388822#body_text>	<http://purl.org/dc/terms/subject>	"Trade unions" .
<http://ns.inria.fr/covid19/PMC7388822#body_text>	<http://purl.org/dc/terms/subject>	"British novels adapted into plays" .
<http://ns.inria.fr/covid19/PMC7388822#body_text>	<http://purl.org/dc/terms/subject>	"Senescence" .