_:b57518989	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57518989	<http://www.w3.org/ns/oa#exact>	"efficacy" .
_:b57518988	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/5adc2c8ac232f23c4cda2e79bd7d25879241d8e8/3> .
_:b57518988	<http://www.w3.org/ns/oa#hasSelector>	_:b57518989 .