_:b56339049	<http://www.w3.org/ns/oa#exact>	"placebo" .
_:b56339048	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/c64f38c6df314ef020e7984015750165a6f75ab1/3> .
_:b56339048	<http://www.w3.org/ns/oa#hasSelector>	_:b56339049 .
_:b56339049	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .