_:b57957100	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/6c1e0ff0642e4509109804174d97fe0fe85a970e/0> .
_:b57957100	<http://www.w3.org/ns/oa#hasSelector>	_:b57957101 .
_:b57957101	<http://www.w3.org/ns/oa#exact>	"frequencies" .
_:b57957101	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .