<http://ns.inria.fr/covid19/PMC7245515#body_text>	<http://purl.org/dc/terms/subject>	"Cold War conflicts" .
<http://ns.inria.fr/covid19/PMC7245515#body_text>	<http://purl.org/dc/terms/subject>	"Tax resistance in the United States" .
<http://ns.inria.fr/covid19/PMC7245515#body_text>	<http://purl.org/dc/terms/subject>	"Deaths from cholera" .