<http://ns.inria.fr/covid19/PMC7443043#title>	<http://purl.org/dc/terms/subject>	"1960 establishments in Africa" .
<http://ns.inria.fr/covid19/PMC7443043#title>	<http://purl.org/dc/terms/subject>	"Cities in Nigeria" .
<http://ns.inria.fr/covid19/PMC7443043#title>	<http://purl.org/dc/terms/subject>	"Populated coastal places in Lagos State" .