_:b667616221 <http://www.w3.org/2007/05/powder-s#describedby> <https://covidontheweb.inria.fr:4443/about/id/entity/http/ns.inria.fr/wasabi/song/5714deed25ac0d8aee57fe5c> . _:b667616221 <http://ns.inria.fr/wasabi/ontology/topic> <http://ns.inria.fr/wasabi/topic/20> . _:b667616221 <http://ns.inria.fr/wasabi/ontology/probability> "0"^^<http://www.w3.org/2001/XMLSchema#integer> .