_:b57038308	<http://www.w3.org/ns/oa#hasSelector>	_:b57038309 .
_:b57038309	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57038309	<http://www.w3.org/ns/oa#exact>	"ratio" .
_:b57038308	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/722ed3837cb73f60e42e9ba5b140dc794ade069b/1> .