<http://ns.inria.fr/covid19/PMC7131162#body_text> <http://purl.org/dc/terms/subject> "Feces" . <http://ns.inria.fr/covid19/PMC7131162#body_text> <http://purl.org/dc/terms/subject> "Differential equations" . <http://ns.inria.fr/covid19/PMC7131162#body_text> <http://purl.org/dc/terms/subject> "Mythology" .