<http://ns.inria.fr/covid19/PMC6092911#body_text>	<http://purl.org/dc/terms/subject>	"Historical regions" .
<http://ns.inria.fr/covid19/PMC6092911#body_text>	<http://purl.org/dc/terms/subject>	"Arabian Peninsula" .
<http://ns.inria.fr/covid19/PMC6092911#body_text>	<http://purl.org/dc/terms/subject>	"Port cities and towns in Germany" .