_:b57724949	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57724949	<http://www.w3.org/ns/oa#exact>	"efficacy" .
_:b57724948	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/7f6d6d5cf7a484c164c955ff15a32758e1ab3943/0> .
_:b57724948	<http://www.w3.org/ns/oa#hasSelector>	_:b57724949 .