_:b56409988	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/397bd9e60980178047918238f224680050373118/2> .
_:b56409989	<http://www.w3.org/ns/oa#exact>	"efficacy" .
_:b56409988	<http://www.w3.org/ns/oa#hasSelector>	_:b56409989 .
_:b56409989	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .