<http://ns.inria.fr/covid19/PMC7148905#body_text>	<http://purl.org/dc/terms/subject>	"Multinational companies headquartered in the United States" .
<http://ns.inria.fr/covid19/PMC7148905#body_text>	<http://purl.org/dc/terms/subject>	"Lists of countries" .
<http://ns.inria.fr/covid19/PMC7148905#body_text>	<http://purl.org/dc/terms/subject>	"Network theory" .