<http://ns.inria.fr/covid19/PMC7188828#body_text>	<http://purl.org/dc/terms/subject>	"Physical chemistry" .
<http://ns.inria.fr/covid19/PMC7188828#body_text>	<http://purl.org/dc/terms/subject>	"Famines" .
<http://ns.inria.fr/covid19/PMC7188828#body_text>	<http://purl.org/dc/terms/subject>	"Government-owned companies of Singapore" .