<http://ns.inria.fr/covid19/PMC7366982#body_text>	<http://purl.org/dc/terms/subject>	"Water conservation" .
<http://ns.inria.fr/covid19/PMC7366982#body_text>	<http://purl.org/dc/terms/subject>	"Bioenergy" .
<http://ns.inria.fr/covid19/PMC7366982#body_text>	<http://purl.org/dc/terms/subject>	"Lists of countries" .