_:b57501537	<http://www.w3.org/ns/oa#exact>	"efficacy" .
_:b57501536	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/b7c8e73cf095e30552a32cea04a398331c55ab41/1> .
_:b57501537	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57501536	<http://www.w3.org/ns/oa#hasSelector>	_:b57501537 .