<http://ns.inria.fr/covid19/PMC7159583#body_text>	<http://purl.org/dc/terms/subject>	"Spectroscopy" .
<http://ns.inria.fr/covid19/PMC7159583#body_text>	<http://purl.org/dc/terms/subject>	"Alchemical substances" .
<http://ns.inria.fr/covid19/PMC7159583#body_text>	<http://purl.org/dc/terms/subject>	"Physical chemistry" .
<http://ns.inria.fr/covid19/PMC7159583#body_text>	<http://purl.org/dc/terms/subject>	"Multinational companies headquartered in England" .