_:b57512309	<http://www.w3.org/ns/oa#exact>	"efficacy" .
_:b57512308	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/d6064871da1ab19b1e90c9f50cdc8bdf7e79be28/1> .
_:b57512309	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57512308	<http://www.w3.org/ns/oa#hasSelector>	_:b57512309 .