_:b56756816	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/25e53f84ee9bb3d0f9be47a740938c12dbbd559b/3> .
_:b56756817	<http://www.w3.org/ns/oa#exact>	"efficacy" .
_:b56756816	<http://www.w3.org/ns/oa#hasSelector>	_:b56756817 .
_:b56756817	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .