<http://ns.inria.fr/covid19/PMC5814560#body_text>	<http://purl.org/dc/terms/subject>	"Sports originating in Japan" .
<http://ns.inria.fr/covid19/PMC5814560#body_text>	<http://purl.org/dc/terms/subject>	"Physical chemistry" .
<http://ns.inria.fr/covid19/PMC5814560#body_text>	<http://purl.org/dc/terms/subject>	"Large-caliber cartridges" .