<http://ns.inria.fr/covid19/PMC5394096#body_text>	<http://purl.org/dc/terms/subject>	"G20 nations" .
<http://ns.inria.fr/covid19/PMC5394096#body_text>	<http://purl.org/dc/terms/subject>	"Populated places on the Willamette River" .
<http://ns.inria.fr/covid19/PMC5394096#body_text>	<http://purl.org/dc/terms/subject>	"History of Manchuria" .