_:b57401905	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57401904	<http://www.w3.org/ns/oa#hasSelector>	_:b57401905 .
_:b57401905	<http://www.w3.org/ns/oa#exact>	"level" .
_:b57401904	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/3944faf6e6191e9fada235fc0f8bdab29d862f55/0> .