<http://ns.inria.fr/covid19/PMC7302809#body_text>	<http://purl.org/dc/terms/subject>	"Philosophical theories" .
<http://ns.inria.fr/covid19/PMC7302809#body_text>	<http://purl.org/dc/terms/subject>	"1967 British television episodes" .
<http://ns.inria.fr/covid19/PMC7302809#body_text>	<http://purl.org/dc/terms/subject>	"Problem solving methods" .