_:b56451785	<http://www.w3.org/ns/oa#exact>	"efficacy" .
_:b56451784	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/84f278123287c64e83b82eb700041011e630071e/2> .
_:b56451785	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56451784	<http://www.w3.org/ns/oa#hasSelector>	_:b56451785 .