_:b57401592	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/e96a92420042a55c6681079ad5e5a7830a0f9031/0> .
_:b57401593	<http://www.w3.org/ns/oa#exact>	"grade 3" .
_:b57401593	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57401592	<http://www.w3.org/ns/oa#hasSelector>	_:b57401593 .