<http://ns.inria.fr/covid19/PMC7443061#title>	<http://purl.org/dc/terms/subject>	"Hygiene" .
<http://ns.inria.fr/covid19/PMC7443061#title>	<http://purl.org/dc/terms/subject>	"Sewerage" .
<http://ns.inria.fr/covid19/PMC7443061#title>	<http://purl.org/dc/terms/subject>	"County capitals in Kenya" .