<http://ns.inria.fr/covid19/PMC7117281#body_text>	<http://purl.org/dc/terms/subject>	"20th-century American zoologists" .
<http://ns.inria.fr/covid19/PMC7117281#body_text>	<http://purl.org/dc/terms/subject>	"Feces" .
<http://ns.inria.fr/covid19/PMC7117281#body_text>	<http://purl.org/dc/terms/subject>	"Moment (mathematics)" .