_:b56878640	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/95f0201170bcc0813dd259791b86179d5aa21189/0> .
_:b56878640	<http://www.w3.org/ns/oa#hasSelector>	_:b56878641 .
_:b56878641	<http://www.w3.org/ns/oa#exact>	"studies" .
_:b56878641	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .