_:b57899997	<http://www.w3.org/ns/oa#exact>	"efficacy" .
_:b57899996	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/407cb0b425ec88d59147a62c7c8f07a2c8345242/0> .
_:b57899997	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57899996	<http://www.w3.org/ns/oa#hasSelector>	_:b57899997 .