_:b57993877	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57993876	<http://www.w3.org/ns/oa#hasSelector>	_:b57993877 .
_:b57993877	<http://www.w3.org/ns/oa#exact>	"ratio" .
_:b57993876	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/22d734ce865dda20bbbbd2695ffe67cb5bb10445/1> .