<http://ns.inria.fr/covid19/PMC7431891#title>	<http://purl.org/dc/terms/subject>	"Environmental social science" .
<http://ns.inria.fr/covid19/PMC7431891#title>	<http://purl.org/dc/terms/subject>	"Member states of the South Asian Association for Regional Cooperation" .
<http://ns.inria.fr/covid19/PMC7431891#title>	<http://purl.org/dc/terms/subject>	"Landlocked countries" .