<http://ns.inria.fr/covid19/PMC7272179#body_text>	<http://purl.org/dc/terms/subject>	"Physical chemistry" .
<http://ns.inria.fr/covid19/PMC7272179#body_text>	<http://purl.org/dc/terms/subject>	"1934 establishments in Japan" .
<http://ns.inria.fr/covid19/PMC7272179#body_text>	<http://purl.org/dc/terms/subject>	"Unicode" .