<http://ns.inria.fr/covid19/PMC3317838#body_text>	<http://purl.org/dc/terms/subject>	"English indie rock groups" .
<http://ns.inria.fr/covid19/PMC3317838#body_text>	<http://purl.org/dc/terms/subject>	"Smallpox vaccines" .
<http://ns.inria.fr/covid19/PMC3317838#body_text>	<http://purl.org/dc/terms/subject>	"Independent cities in the United States" .