_:b57408725	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57408724	<http://www.w3.org/ns/oa#hasSelector>	_:b57408725 .
_:b57408725	<http://www.w3.org/ns/oa#exact>	"duration" .
_:b57408724	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/0aa141040539da636bc0ba86bb40920d9721aa49/1> .