<http://ns.inria.fr/covid19/PMC6954091#body_text>	<http://purl.org/dc/terms/subject>	"Spreads (food)" .
<http://ns.inria.fr/covid19/PMC6954091#body_text>	<http://purl.org/dc/terms/subject>	"G20 nations" .
<http://ns.inria.fr/covid19/PMC6954091#body_text>	<http://purl.org/dc/terms/subject>	"1835 in science" .