<http://ns.inria.fr/covid19/PMC7322007#title>	<http://purl.org/dc/terms/subject>	"Proportional representation electoral systems" .
<http://ns.inria.fr/covid19/PMC7322007#title>	<http://purl.org/dc/terms/subject>	"Elections" .
<http://ns.inria.fr/covid19/PMC7322007#title>	<http://purl.org/dc/terms/subject>	"Elections in Japan" .
<http://ns.inria.fr/covid19/PMC7322007#title>	<http://purl.org/dc/terms/subject>	"Voting" .