_:b57269869	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57269869	<http://www.w3.org/ns/oa#exact>	"duration of" .
_:b57269868	<http://www.w3.org/ns/oa#hasSelector>	_:b57269869 .
_:b57269868	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/1b7c0aeb08bb55bde5b2cbf458dab4b7620fe6a9/0> .