_:b57234857	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57234857	<http://www.w3.org/ns/oa#exact>	"efficacy" .
_:b57234856	<http://www.w3.org/ns/oa#hasSelector>	_:b57234857 .
_:b57234856	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/8a24b062c04ba974a82387cea0050a45c9e87ded/0> .