_:b57904216	<http://www.w3.org/ns/oa#hasSelector>	_:b57904217 .
_:b57904217	<http://www.w3.org/ns/oa#exact>	"efficacy" .
_:b57904217	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57904216	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/3ba5a8bec872feebb62f6a1f384690ba1cd63a8b/2> .