_:b57002693	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57002692	<http://www.w3.org/ns/oa#hasSelector>	_:b57002693 .
_:b57002693	<http://www.w3.org/ns/oa#exact>	"period" .
_:b57002692	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/763af95c8fd5e22193615929ff7fe065f30f6011/3> .