<http://ns.inria.fr/covid19/PMC7194581#body_text>	<http://purl.org/dc/terms/subject>	"Hospital ships involved in the COVID-19 pandemic" .
<http://ns.inria.fr/covid19/PMC7194581#body_text>	<http://purl.org/dc/terms/subject>	"Primary care" .
<http://ns.inria.fr/covid19/PMC7194581#body_text>	<http://purl.org/dc/terms/subject>	"Burials at Arlington National Cemetery" .