_:b57488088	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/ccbdf76bb39d9bb187b9456d987d9014fde890ff/0> .
_:b57488089	<http://www.w3.org/ns/oa#exact>	"levels" .
_:b57488089	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57488088	<http://www.w3.org/ns/oa#hasSelector>	_:b57488089 .