<http://ns.inria.fr/covid19/PMC7180682#body_text>	<http://purl.org/dc/terms/subject>	"Medical mnemonics" .
<http://ns.inria.fr/covid19/PMC7180682#body_text>	<http://purl.org/dc/terms/subject>	"Acetanilides" .
<http://ns.inria.fr/covid19/PMC7180682#body_text>	<http://purl.org/dc/terms/subject>	"1570 establishments in the Spanish Empire" .