_:b56171701	<http://www.w3.org/ns/oa#exact>	"placebo" .
_:b56171701	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56171700	<http://www.w3.org/ns/oa#hasSelector>	_:b56171701 .
_:b56171700	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/1cb75c7daae9a73549f3cf21011d04b4846694b8/1> .