_:b57289644	<http://www.w3.org/ns/oa#hasSelector>	_:b57289645 .
_:b57289645	<http://www.w3.org/ns/oa#exact>	"efficacy" .
_:b57289644	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/778903e91db14b0973295cc8e58a6cd4c7a136ba/1> .
_:b57289645	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .